-/*
- * Copyright (C) 2001, 2002 The Mir-coders group
- *
- * This file is part of Mir.
- *
- * Mir is free software; you can redistribute it and/or modify
- * it under the terms of the GNU General Public License as published by
- * the Free Software Foundation; either version 2 of the License, or
- * (at your option) any later version.
- *
- * Mir is distributed in the hope that it will be useful,
- * but WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
- * GNU General Public License for more details.
- *
- * You should have received a copy of the GNU General Public License
- * along with Mir; if not, write to the Free Software
- * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
- *
- * In addition, as a special exception, The Mir-coders gives permission to link
- * the code of this program with the com.oreilly.servlet library, any library
- * licensed under the Apache Software License, The Sun (tm) Java Advanced
- * Imaging library (JAI), The Sun JIMI library (or with modified versions of
- * the above that use the same license as the above), and distribute linked
- * combinations including the two. You must obey the GNU General Public
- * License in all respects for all of the code used other than the above
- * mentioned libraries. If you modify this file, you may extend this exception
- * to your version of the file, but you are not obligated to do so. If you do
- * not wish to do so, delete this exception statement from your version.
- */
-
-import freemarker.template.SimpleList;
-import freemarker.template.SimpleHash;
-import freemarker.template.SimpleScalar;
-import mir.misc.HTMLParseException;
-import mir.misc.HTMLTemplateProcessor;
-import mir.misc.MirConfig;
-import mir.misc.StringUtil;
-import mir.servlet.*;
-import mir.producer.*;
-
-import mircoders.global.*;
-import mircoders.localizer.*;
-import mircoders.entity.EntityUsers;
-import mircoders.module.ModuleMessage;
-import mircoders.module.ModuleUsers;
-import mircoders.storage.DatabaseArticleType;
-import mircoders.storage.DatabaseMessages;
-import mircoders.storage.DatabaseUsers;
-
-import javax.servlet.ServletException;
-import javax.servlet.UnavailableException;
-import javax.servlet.http.HttpServletRequest;
-import javax.servlet.http.HttpServletResponse;
-import javax.servlet.http.HttpSession;
-import java.io.IOException;
-import java.io.PrintWriter;
-import java.lang.reflect.Method;
-import java.util.GregorianCalendar;
-import java.util.HashMap;
-import java.util.Locale;
-import java.util.*;
-
-import mir.log.Log;
-
-/**
- * Mir.java - main servlet, that dispatches to servletmodules
- *
- * @author $Author: mh $
- * @version $Id: Mir.java,v 1.23 2002/12/06 08:12:42 mh Exp $
- *
- */
-
-
-public class Mir extends AbstractServlet {
-
- private static ModuleUsers usersModule = null;
- private static ModuleMessage messageModule = null;
- private final static HashMap servletModuleInstanceHash = new HashMap();
-
- public HttpSession session;
-
- public void doGet(HttpServletRequest req, HttpServletResponse res)
- throws ServletException, IOException {
- doPost(req, res);
- }
-
- public void doPost(HttpServletRequest req, HttpServletResponse res)
- throws ServletException, IOException, UnavailableException {
-
-
-
- long startTime = System.currentTimeMillis();
- long sessionConnectTime = 0;
- EntityUsers userEntity;
- String http = "";
-
- if (getServletContext().getAttribute("mir.confed") == null) {
- getConfig(req);
- }
-
- MirConfig.setServletName(getServletName());
-
- //*** test
- // Log.info(this, "blalalala");
-
- session = req.getSession(true);
- userEntity = (EntityUsers) session.getAttribute("login.uid");
-
- if (req.getServerPort() == 443) http = "https"; else http = "http";
-
- //nothing in Mir can or should be cached as it's all dynamic...
- //
- //this needs to be done here and not per page (via meta tags) as some
- //browsers have problems w/ it per-page -mh
- res.setHeader("Pragma", "no-cache");
- res.setDateHeader("Expires", 0);
- res.setHeader("Cache-Control", "no-cache");
- res.setContentType("text/html; charset="
- +MirConfig.getProp("Mir.DefaultEncoding"));
- String moduleName = req.getParameter("module");
-
- checkLanguage(session, req);
-
- /** @todo for cleanup and readability this should be moved to
- * method loginIfNecessary() */
-
- if (moduleName!=null && moduleName.equals("direct")) {
- //...
- }
-
- // Authentifizierung
- if ((moduleName != null && moduleName.equals("login")) || (userEntity==null)) {
- String user = req.getParameter("login");
- String passwd = req.getParameter("password");
- theLog.printDebugInfo("--login: evaluating for user: " + user);
- userEntity = allowedUser(user, passwd);
- if (userEntity == null) {
- // login failed: redirecting to login
- theLog.printWarning("--login: failed!");
- _sendLoginPage(res, req, res.getWriter());
- return;
- }
- else if (moduleName!=null && moduleName.equals("login")) {
- // login successful
-
- theLog.printInfo("--login: successful! setting uid: " + userEntity.getId());
- session.setAttribute("login.uid", userEntity);
- theLog.printDebugInfo("--login: trying to retrieve login.target");
- String target = (String) session.getAttribute("login.target");
-
- if (target != null) {
- theLog.printDebugInfo("Redirect: " + target);
- int serverPort = req.getServerPort();
- String redirect = "";
- String redirectString = "";
-
-
- if (serverPort == 80) {
- redirect = res.encodeURL(http + "://" + req.getServerName() + target);
- redirectString = "<html><head><meta http-equiv=refresh content=\"1;URL="
- + redirect
- + "\"></head><body>going <a href=\"" + redirect + "\">Mir</a></body></html>";
- }
- else {
- redirect = res.encodeURL(http + "://" + req.getServerName() + ":" + req.getServerPort() + target);
- redirectString = "<html><head><meta http-equiv=refresh content=\"1;URL="
- + redirect
- + "\"></head><body>going <a href=\"" + redirect + "\">Mir</a></body></html>";
- }
- res.getWriter().println(redirectString);
-
-
- //res.sendRedirect(redirect);
-
- }
- else {
- // redirecting to default target
- theLog.printDebugInfo("--login: no target - redirecting to default");
- _sendStartPage(res, req, res.getWriter(), userEntity);
- }
- return;
- } // if login succesful
- } // if login
-
- if (moduleName != null && moduleName.equals("logout")) {
- theLog.printDebugInfo("--logout");
- session.invalidate();
-
- //session = req.getSession(true);
- //checkLanguage(session, req);
- _sendLoginPage(res, req, res.getWriter());
- return;
- }
-
- // Check if authed!
- if (userEntity == null) {
- // redirect to loginpage
- String redirectString = req.getRequestURI();
- String queryString = req.getQueryString();
- if (queryString != null && !queryString.equals("")) {
- redirectString += "?" + req.getQueryString();
- theLog.printDebugInfo("STORING: " + redirectString);
- session.setAttribute("login.target", redirectString);
- }
- _sendLoginPage(res, req, res.getWriter());
- return;
- }
-
- // If no module is specified goto standard startpage
- if (moduleName == null || moduleName.equals("")) {
- theLog.printDebugInfo("no module: redirect to standardpage");
- _sendStartPage(res, req, res.getWriter(), userEntity);
- return;
- }
- // end of auth
-
- // From now on regular dispatching...
- try {
- // get servletmodule by parameter and continue with dispacher
- ServletModule smod = getServletModuleForName(moduleName);
- ServletModuleDispatch.dispatch(smod, req, res);
- }
- catch (ServletModuleException e) {
- handleError(req, res, res.getWriter(),
- "ServletException in Module " + moduleName + " -- " + e.getMessage());
- }
- catch (ServletModuleUserException e) {
- handleUserError(req, res, res.getWriter(), e.getMessage());
- }
-
- // timing...
- sessionConnectTime = System.currentTimeMillis() - startTime;
- theLog.printInfo("EXECTIME (" + moduleName + "): " + sessionConnectTime + " ms");
- }
-
-
- /**
- * Private method getServletModuleForName returns ServletModule
- * from Cache
- *
- * @return ServletModule
- *
- */
- private static ServletModule getServletModuleForName(String moduleName)
- throws ServletModuleException {
-
- // Instance in Map ?
- if (!servletModuleInstanceHash.containsKey(moduleName)) {
- // was not found in hash...
- try {
- Class theServletModuleClass = null;
- try {
- // first we try to get ServletModule from stern.che3.servlet
- theServletModuleClass = Class.forName("mircoders.servlet.ServletModule" + moduleName);
- }
- catch (ClassNotFoundException e) {
- // on failure, we try to get it from lib-layer
- theServletModuleClass = Class.forName("mir.servlet.ServletModule" + moduleName);
- }
- Method m = theServletModuleClass.getMethod("getInstance", null);
- ServletModule smod = (ServletModule) m.invoke(null, null);
- // we put it into map for further reference
- servletModuleInstanceHash.put(moduleName, smod);
- return smod;
- }
- catch (Exception e) {
- throw new ServletModuleException("*** error resolving classname for " +
- moduleName + " -- " + e.getMessage());
- }
- }
- else
- return (ServletModule) servletModuleInstanceHash.get(moduleName);
- }
-
-
- private void handleError(HttpServletRequest req, HttpServletResponse res,
- PrintWriter out, String errorString) {
-
- try {
- theLog.printError(errorString);
- SimpleHash modelRoot = new SimpleHash();
- modelRoot.put("errorstring", new SimpleScalar(errorString));
- modelRoot.put("date", new SimpleScalar(StringUtil.date2readableDateTime(new GregorianCalendar())));
- HTMLTemplateProcessor.process(res, MirConfig.getProp("Mir.ErrorTemplate"), modelRoot, out, getLocale(req));
- out.close();
- }
- catch (Exception e) {
- e.printStackTrace(System.out);
- System.err.println("Error in ErrorTemplate: " + e.getMessage());
- }
- }
-
- private void handleUserError(HttpServletRequest req, HttpServletResponse res,
- PrintWriter out, String errorString) {
- try {
- theLog.printError(errorString);
- SimpleHash modelRoot = new SimpleHash();
- modelRoot.put("errorstring", new SimpleScalar(errorString));
- modelRoot.put("date", new SimpleScalar(StringUtil.date2readableDateTime(new GregorianCalendar())));
- HTMLTemplateProcessor.process(res, MirConfig.getProp("Mir.UserErrorTemplate"),
- modelRoot, out, getLocale(req));
- out.close();
- }
- catch (Exception e) {
- System.err.println("Error in UserErrorTemplate");
- }
-
- }
-
- /**
- * evaluate login for user / password
- */
- protected EntityUsers allowedUser(String user, String password) {
- try {
- if (usersModule == null) usersModule = new ModuleUsers(DatabaseUsers.getInstance());
- return usersModule.getUserForLogin(user, password);
- }
- catch (Exception e) {
- theLog.printDebugInfo(e.getMessage());
- e.printStackTrace();
- return null;
- }
- }
-
- // Redirect-methods
- private void _sendLoginPage(HttpServletResponse res, HttpServletRequest req, PrintWriter out) {
- String loginTemplate = MirConfig.getProp("Mir.LoginTemplate");//"login.template";
- // theLog.printDebugInfo("login template: "+loginTemplate);
- String sessionUrl = res.encodeURL("");
- //session = req.getSession(true);
- try {
- //theLog.printDebugInfo("login: "+lang);
- //if(lang==null){
- // lang=getAcceptLanguage(req);
- //}
- SimpleHash mergeData = new SimpleHash();
- mergeData.put("session", sessionUrl);
- HTMLTemplateProcessor.process(res, loginTemplate, mergeData, out, getLocale(req));
- }
- catch (HTMLParseException e) {
- handleError(req, res, out, "Error in logintemplate.");
- }
- }
-
- private void _sendStartPage(HttpServletResponse res, HttpServletRequest req, PrintWriter out, EntityUsers userEntity) {
- String startTemplate = "templates/admin/start_admin.template";
- String sessionUrl = res.encodeURL("");
- try {
- // merge with logged in user and messages
- SimpleHash mergeData = new SimpleHash();
- mergeData.put("session", sessionUrl);
- mergeData.put("login_user", userEntity);
- if (messageModule == null) messageModule = new ModuleMessage(DatabaseMessages.getInstance());
- mergeData.put("messages", messageModule.getByWhereClause(null, "webdb_create desc", 0, 10));
-
- mergeData.put("articletypes", DatabaseArticleType.getInstance().selectByWhereClause("", "id", 0, 20));
-
-/*
- SimpleList producersData = new SimpleList();
- Iterator i = MirGlobal.localizer().producers().factories().entrySet().iterator();
- while (i.hasNext()) {
- Map.Entry entry = (Map.Entry) i.next();
-
- SimpleList producerVerbs = new SimpleList();
- Iterator j = ((ProducerFactory) entry.getValue()).verbs();
- while (j.hasNext()) {
- producerVerbs.add((String) j.next());
- }
-
- SimpleHash producerData = new SimpleHash();
- producerData.put("key", (String) entry.getKey());
- producerData.put("verbs", producerVerbs);
-
- producersData.add(producerData);
- }
- mergeData.put("producers", producersData);
- */
-
-
- HTMLTemplateProcessor.process(res, startTemplate, mergeData, out, getLocale(req));
- }
- catch (Exception e) {
- e.printStackTrace(System.out);
- handleError(req, res, out, "error while trying to send startpage. " + e.getMessage());
- }
- }
-
- public String getServletInfo() {
- return "Mir "+MirConfig.getProp("Mir.Version");
- }
-
- private void checkLanguage(HttpSession session, HttpServletRequest req) {
-
- // a lang parameter always sets the language
- String lang = req.getParameter("lang");
- if (lang != null) {
- theLog.printInfo("selected language "+lang+" overrides accept-language");
- setLanguage(session, lang);
- setLocale(session, new Locale(lang, ""));
- }
- // otherwise store language from accept header in session
- else if (session.getAttribute("Language") == null) {
- theLog.printInfo("accept-language is "+req.getLocale().getLanguage());
- setLanguage(session, req.getLocale().getLanguage());
- setLocale(session, req.getLocale());
- }
- }
-}
-
+/*\r
+ * Copyright (C) 2001, 2002 The Mir-coders group\r
+ *\r
+ * This file is part of Mir.\r
+ *\r
+ * Mir is free software; you can redistribute it and/or modify\r
+ * it under the terms of the GNU General Public License as published by\r
+ * the Free Software Foundation; either version 2 of the License, or\r
+ * (at your option) any later version.\r
+ *\r
+ * Mir is distributed in the hope that it will be useful,\r
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of\r
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the\r
+ * GNU General Public License for more details.\r
+ *\r
+ * You should have received a copy of the GNU General Public License\r
+ * along with Mir; if not, write to the Free Software\r
+ * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA\r
+ *\r
+ * In addition, as a special exception, The Mir-coders gives permission to link\r
+ * the code of this program with the com.oreilly.servlet library, any library\r
+ * licensed under the Apache Software License, The Sun (tm) Java Advanced\r
+ * Imaging library (JAI), The Sun JIMI library (or with modified versions of\r
+ * the above that use the same license as the above), and distribute linked\r
+ * combinations including the two. You must obey the GNU General Public\r
+ * License in all respects for all of the code used other than the above\r
+ * mentioned libraries. If you modify this file, you may extend this exception\r
+ * to your version of the file, but you are not obligated to do so. If you do\r
+ * not wish to do so, delete this exception statement from your version.\r
+ */\r
+\r
+import java.io.IOException;\r
+import java.io.PrintWriter;\r
+import java.lang.reflect.Method;\r
+import java.util.GregorianCalendar;\r
+import java.util.HashMap;\r
+import java.util.Locale;\r
+import java.util.*;\r
+\r
+import javax.servlet.ServletException;\r
+import javax.servlet.UnavailableException;\r
+import javax.servlet.http.HttpServletRequest;\r
+import javax.servlet.http.HttpServletResponse;\r
+import javax.servlet.http.HttpSession;\r
+\r
+import freemarker.template.*;\r
+\r
+import org.apache.struts.util.MessageResources;\r
+\r
+import mir.misc.*;\r
+import mir.servlet.*;\r
+import mir.util.*;\r
+import mir.generator.*;\r
+//import mir.log.Log;\r
+\r
+import mircoders.global.*;\r
+import mircoders.localizer.*;\r
+import mircoders.entity.EntityUsers;\r
+import mircoders.module.ModuleMessage;\r
+import mircoders.module.ModuleUsers;\r
+import mircoders.storage.DatabaseArticleType;\r
+import mircoders.storage.DatabaseMessages;\r
+import mircoders.storage.DatabaseUsers;\r
+\r
+/**\r
+ * Mir.java - main servlet, that dispatches to servletmodules\r
+ *\r
+ * @author $Author: zapata $\r
+ * @version $Id: Mir.java,v 1.24 2002/12/17 19:20:31 zapata Exp $\r
+ *\r
+ */\r
+\r
+public class Mir extends AbstractServlet {\r
+\r
+ private static ModuleUsers usersModule = null;\r
+ private static ModuleMessage messageModule = null;\r
+ private final static HashMap servletModuleInstanceHash = new HashMap();\r
+\r
+ private static List loginLanguages = null;\r
+\r
+ public HttpSession session;\r
+\r
+ public void doGet(HttpServletRequest req, HttpServletResponse res) throws\r
+ ServletException, IOException {\r
+ doPost(req, res);\r
+ }\r
+\r
+ protected TemplateModel getLoginLanguages() throws ServletException {\r
+ synchronized (Mir.class) {\r
+ try {\r
+\r
+ if (loginLanguages == null) {\r
+ MessageResources messageResources2 = MessageResources.\r
+ getMessageResources("bundles.admin");\r
+ MessageResources messageResources = MessageResources.\r
+ getMessageResources("bundles.adminlocal");\r
+ List languages = StringRoutines.splitString(MirGlobal.\r
+ getConfigPropertyWithDefault("Mir.Login.Languages", "en"), ";");\r
+\r
+ loginLanguages = new Vector();\r
+ Iterator i = languages.iterator();\r
+\r
+ while (i.hasNext()) {\r
+ String code = (String) i.next();\r
+ Locale locale = new Locale(code, "");\r
+ String name = messageResources.getMessage(locale, "languagename");\r
+ if (name == null)\r
+ name = messageResources2.getMessage(locale, "languagename");\r
+ if (name == null)\r
+ name = code;\r
+\r
+ Map record = new HashMap();\r
+ record.put("name", name);\r
+ record.put("code", code);\r
+ loginLanguages.add(record);\r
+ }\r
+ }\r
+\r
+ return FreemarkerGenerator.makeAdapter(loginLanguages);\r
+ }\r
+ catch (Throwable t) {\r
+ throw new ServletException(t.getMessage());\r
+ }\r
+ }\r
+ }\r
+\r
+ public void doPost(HttpServletRequest req, HttpServletResponse res) throws\r
+ ServletException, IOException, UnavailableException {\r
+\r
+ long startTime = System.currentTimeMillis();\r
+ long sessionConnectTime = 0;\r
+ EntityUsers userEntity;\r
+ String http = "";\r
+\r
+ if (getServletContext().getAttribute("mir.confed") == null) {\r
+ getConfig(req);\r
+ }\r
+\r
+ MirConfig.setServletName(getServletName());\r
+\r
+ //*** test\r
+ // Log.info(this, "blalalala");\r
+\r
+ session = req.getSession(true);\r
+ userEntity = (EntityUsers) session.getAttribute("login.uid");\r
+\r
+ if (req.getServerPort() == 443)\r
+ http = "https";\r
+ else\r
+ http = "http";\r
+\r
+ //nothing in Mir can or should be cached as it's all dynamic...\r
+ //\r
+ //this needs to be done here and not per page (via meta tags) as some\r
+ //browsers have problems w/ it per-page -mh\r
+ res.setHeader("Pragma", "no-cache");\r
+ res.setDateHeader("Expires", 0);\r
+ res.setHeader("Cache-Control", "no-cache");\r
+ res.setContentType("text/html; charset=" + MirConfig.getProp("Mir.DefaultEncoding"));\r
+\r
+ String moduleName = req.getParameter("module");\r
+ checkLanguage(session, req);\r
+\r
+ /** @todo for cleanup and readability this should be moved to\r
+ * method loginIfNecessary() */\r
+\r
+ if (moduleName != null && moduleName.equals("direct")) {\r
+ //...\r
+ }\r
+\r
+ // Authentication\r
+ if ( (moduleName != null && moduleName.equals("login")) || (userEntity == null)) {\r
+ String user = req.getParameter("login");\r
+ String passwd = req.getParameter("password");\r
+ theLog.printDebugInfo("--login: evaluating for user: " + user);\r
+ userEntity = allowedUser(user, passwd);\r
+ if (userEntity == null) {\r
+ // login failed: redirecting to login\r
+ theLog.printWarning("--login: failed!");\r
+ _sendLoginPage(res, req, res.getWriter());\r
+ return;\r
+ }\r
+ else if (moduleName != null && moduleName.equals("login")) {\r
+ // login successful\r
+\r
+ theLog.printInfo("--login: successful! setting uid: " +\r
+ userEntity.getId());\r
+ session.setAttribute("login.uid", userEntity);\r
+ theLog.printDebugInfo("--login: trying to retrieve login.target");\r
+ String target = (String) session.getAttribute("login.target");\r
+\r
+ if (target != null) {\r
+ theLog.printDebugInfo("Redirect: " + target);\r
+ int serverPort = req.getServerPort();\r
+ String redirect = "";\r
+ String redirectString = "";\r
+\r
+ if (serverPort == 80) {\r
+ redirect = res.encodeURL(http + "://" + req.getServerName() +\r
+ target);\r
+ redirectString =\r
+ "<html><head><meta http-equiv=refresh content=\"1;URL="\r
+ + redirect\r
+ + "\"></head><body>going <a href=\"" + redirect +\r
+ "\">Mir</a></body></html>";\r
+ }\r
+ else {\r
+ redirect = res.encodeURL(http + "://" + req.getServerName() + ":" +\r
+ req.getServerPort() + target);\r
+ redirectString =\r
+ "<html><head><meta http-equiv=refresh content=\"1;URL="\r
+ + redirect\r
+ + "\"></head><body>going <a href=\"" + redirect +\r
+ "\">Mir</a></body></html>";\r
+ }\r
+ res.getWriter().println(redirectString);\r
+\r
+ //res.sendRedirect(redirect);\r
+\r
+ }\r
+ else {\r
+ // redirecting to default target\r
+ theLog.printDebugInfo("--login: no target - redirecting to default");\r
+ _sendStartPage(res, req, res.getWriter(), userEntity);\r
+ }\r
+ return;\r
+ } // if login succesful\r
+ } // if login\r
+\r
+ if (moduleName != null && moduleName.equals("logout")) {\r
+ theLog.printDebugInfo("--logout");\r
+ session.invalidate();\r
+\r
+ //session = req.getSession(true);\r
+ //checkLanguage(session, req);\r
+ _sendLoginPage(res, req, res.getWriter());\r
+ return;\r
+ }\r
+\r
+ // Check if authed!\r
+ if (userEntity == null) {\r
+ // redirect to loginpage\r
+ String redirectString = req.getRequestURI();\r
+ String queryString = req.getQueryString();\r
+ if (queryString != null && !queryString.equals("")) {\r
+ redirectString += "?" + req.getQueryString();\r
+ theLog.printDebugInfo("STORING: " + redirectString);\r
+ session.setAttribute("login.target", redirectString);\r
+ }\r
+ _sendLoginPage(res, req, res.getWriter());\r
+ return;\r
+ }\r
+\r
+ // If no module is specified goto standard startpage\r
+ if (moduleName == null || moduleName.equals("")) {\r
+ theLog.printDebugInfo("no module: redirect to standardpage");\r
+ _sendStartPage(res, req, res.getWriter(), userEntity);\r
+ return;\r
+ }\r
+ // end of auth\r
+\r
+ // From now on regular dispatching...\r
+ try {\r
+ // get servletmodule by parameter and continue with dispacher\r
+ ServletModule smod = getServletModuleForName(moduleName);\r
+ ServletModuleDispatch.dispatch(smod, req, res);\r
+ }\r
+ catch (ServletModuleException e) {\r
+ handleError(req, res, res.getWriter(),\r
+ "ServletException in Module " + moduleName + " -- " +\r
+ e.getMessage());\r
+ }\r
+ catch (ServletModuleUserException e) {\r
+ handleUserError(req, res, res.getWriter(), e.getMessage());\r
+ }\r
+\r
+ // timing...\r
+ sessionConnectTime = System.currentTimeMillis() - startTime;\r
+ theLog.printInfo("EXECTIME (" + moduleName + "): " + sessionConnectTime +\r
+ " ms");\r
+ }\r
+\r
+ /**\r
+ * Private method getServletModuleForName returns ServletModule\r
+ * from Cache\r
+ *\r
+ * @param moduleName\r
+ * @return ServletModule\r
+ *\r
+ */\r
+ private static ServletModule getServletModuleForName(String moduleName) throws\r
+ ServletModuleException {\r
+\r
+ // Instance in Map ?\r
+ if (!servletModuleInstanceHash.containsKey(moduleName)) {\r
+ // was not found in hash...\r
+ try {\r
+ Class theServletModuleClass = null;\r
+ try {\r
+ // first we try to get ServletModule from stern.che3.servlet\r
+ theServletModuleClass = Class.forName(\r
+ "mircoders.servlet.ServletModule" + moduleName);\r
+ }\r
+ catch (ClassNotFoundException e) {\r
+ // on failure, we try to get it from lib-layer\r
+ theServletModuleClass = Class.forName("mir.servlet.ServletModule" +\r
+ moduleName);\r
+ }\r
+ Method m = theServletModuleClass.getMethod("getInstance", null);\r
+ ServletModule smod = (ServletModule) m.invoke(null, null);\r
+ // we put it into map for further reference\r
+ servletModuleInstanceHash.put(moduleName, smod);\r
+ return smod;\r
+ }\r
+ catch (Exception e) {\r
+ throw new ServletModuleException("*** error resolving classname for " +\r
+ moduleName + " -- " + e.getMessage());\r
+ }\r
+ }\r
+ else\r
+ return (ServletModule) servletModuleInstanceHash.get(moduleName);\r
+ }\r
+\r
+ private void handleError(HttpServletRequest req, HttpServletResponse res,\r
+ PrintWriter out, String errorString) {\r
+\r
+ try {\r
+ theLog.printError(errorString);\r
+ SimpleHash modelRoot = new SimpleHash();\r
+ modelRoot.put("errorstring", new SimpleScalar(errorString));\r
+ modelRoot.put("date",\r
+ new SimpleScalar(StringUtil.date2readableDateTime(new GregorianCalendar())));\r
+ HTMLTemplateProcessor.process(res, MirConfig.getProp("Mir.ErrorTemplate"),\r
+ modelRoot, out, getLocale(req));\r
+ out.close();\r
+ }\r
+ catch (Exception e) {\r
+ e.printStackTrace(System.out);\r
+ System.err.println("Error in ErrorTemplate: " + e.getMessage());\r
+ }\r
+ }\r
+\r
+ private void handleUserError(HttpServletRequest req, HttpServletResponse res,\r
+ PrintWriter out, String errorString) {\r
+ try {\r
+ theLog.printError(errorString);\r
+ SimpleHash modelRoot = new SimpleHash();\r
+ modelRoot.put("errorstring", new SimpleScalar(errorString));\r
+ modelRoot.put("date",\r
+ new SimpleScalar(StringUtil.date2readableDateTime(new GregorianCalendar())));\r
+ HTMLTemplateProcessor.process(res,\r
+ MirConfig.getProp("Mir.UserErrorTemplate"),\r
+ modelRoot, out, getLocale(req));\r
+ out.close();\r
+ }\r
+ catch (Exception e) {\r
+ System.err.println("Error in UserErrorTemplate");\r
+ }\r
+\r
+ }\r
+\r
+ /**\r
+ * evaluate login for user / password\r
+ */\r
+ protected EntityUsers allowedUser(String user, String password) {\r
+ try {\r
+ if (usersModule == null)\r
+ usersModule = new ModuleUsers(DatabaseUsers.getInstance());\r
+ return usersModule.getUserForLogin(user, password);\r
+ }\r
+ catch (Exception e) {\r
+ theLog.printDebugInfo(e.getMessage());\r
+ e.printStackTrace();\r
+ return null;\r
+ }\r
+ }\r
+\r
+ // Redirect-methods\r
+ private void _sendLoginPage(HttpServletResponse res, HttpServletRequest req,\r
+ PrintWriter out) {\r
+ String loginTemplate = MirConfig.getProp("Mir.LoginTemplate");\r
+ String sessionUrl = res.encodeURL("");\r
+\r
+ try {\r
+ SimpleHash mergeData = new SimpleHash();\r
+ SimpleList languages = new SimpleList();\r
+\r
+ mergeData.put("session", sessionUrl);\r
+\r
+ mergeData.put("defaultlanguage", MirGlobal.getConfigPropertyWithDefault("Mir.Login.DefaultLanguage", "en"));\r
+ mergeData.put("languages", getLoginLanguages());\r
+\r
+ HTMLTemplateProcessor.process(res, loginTemplate, mergeData, out, getLocale(req));\r
+ }\r
+ catch (Throwable e) {\r
+ handleError(req, res, out, "Error sending login page: " + e.getMessage());\r
+ }\r
+ }\r
+\r
+ private void _sendStartPage(HttpServletResponse res, HttpServletRequest req,\r
+ PrintWriter out, EntityUsers userEntity) {\r
+ String startTemplate = "templates/admin/start_admin.template";\r
+ String sessionUrl = res.encodeURL("");\r
+\r
+ try {\r
+ // merge with logged in user and messages\r
+ SimpleHash mergeData = new SimpleHash();\r
+ mergeData.put("session", sessionUrl);\r
+ mergeData.put("login_user", userEntity);\r
+ if (messageModule == null)\r
+ messageModule = new ModuleMessage(DatabaseMessages.getInstance());\r
+ mergeData.put("messages",\r
+ messageModule.getByWhereClause(null, "webdb_create desc", 0,\r
+ 10));\r
+\r
+ mergeData.put("articletypes",\r
+ DatabaseArticleType.getInstance().\r
+ selectByWhereClause("", "id", 0, 20));\r
+\r
+ HTMLTemplateProcessor.process(res, startTemplate, mergeData, out, getLocale(req));\r
+ }\r
+ catch (Exception e) {\r
+ e.printStackTrace(System.out);\r
+ handleError(req, res, out, "error while trying to send startpage. " + e.getMessage());\r
+ }\r
+ }\r
+\r
+ public String getServletInfo() {\r
+ return "Mir " + MirConfig.getProp("Mir.Version");\r
+ }\r
+\r
+ private void checkLanguage(HttpSession session, HttpServletRequest req) {\r
+ // a lang parameter always sets the language\r
+ String lang = req.getParameter("language");\r
+ if (lang != null) {\r
+ theLog.printInfo("selected language " + lang + " overrides accept-language");\r
+ setLanguage(session, lang);\r
+ setLocale(session, new Locale(lang, ""));\r
+ }\r
+ // otherwise store language from accept header in session\r
+ else if (session.getAttribute("Language") == null) {\r
+ theLog.printInfo("accept-language is " + req.getLocale().getLanguage());\r
+ setLanguage(session, req.getLocale().getLanguage());\r
+ setLocale(session, req.getLocale());\r
+ }\r
+ }\r
+}\r
-/*
- * Copyright (C) 2001, 2002 The Mir-coders group
- *
- * This file is part of Mir.
- *
- * Mir is free software; you can redistribute it and/or modify
- * it under the terms of the GNU General Public License as published by
- * the Free Software Foundation; either version 2 of the License, or
- * (at your option) any later version.
- *
- * Mir is distributed in the hope that it will be useful,
- * but WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
- * GNU General Public License for more details.
- *
- * You should have received a copy of the GNU General Public License
- * along with Mir; if not, write to the Free Software
- * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
- *
- * In addition, as a special exception, The Mir-coders gives permission to link
- * the code of this program with the com.oreilly.servlet library, any library
- * licensed under the Apache Software License, The Sun (tm) Java Advanced
- * Imaging library (JAI), The Sun JIMI library (or with modified versions of
- * the above that use the same license as the above), and distribute linked
- * combinations including the two. You must obey the GNU General Public
- * License in all respects for all of the code used other than the above
- * mentioned libraries. If you modify this file, you may extend this exception
- * to your version of the file, but you are not obligated to do so. If you do
- * not wish to do so, delete this exception statement from your version.
- */
-
-package mir.storage;
-
-import java.sql.*;
-import java.lang.*;
-import java.io.*;
-import java.util.*;
-import java.text.SimpleDateFormat;
-import java.text.ParseException;
-import freemarker.template.*;
-import com.codestudio.sql.*;
-import com.codestudio.util.*;
-
-import mir.storage.StorageObject;
-import mir.storage.store.*;
-import mir.entity.*;
-import mir.misc.*;
-import mir.util.*;
-
-
-/**
- * Diese Klasse implementiert die Zugriffsschicht auf die Datenbank.
- * Alle Projektspezifischen Datenbankklassen erben von dieser Klasse.
- * In den Unterklassen wird im Minimalfall nur die Tabelle angegeben.
- * Im Konfigurationsfile findet sich eine Verweis auf den verwendeten
- * Treiber, Host, User und Passwort, ueber den der Zugriff auf die
- * Datenbank erfolgt.
- *
- * @version $Id: Database.java,v 1.27 2002/12/14 01:37:43 zapata Exp $
- * @author rk
- *
- */
-public class Database implements StorageObject {
-
- protected String theTable;
- protected String theCoreTable=null;
- protected String thePKeyName="id";
- protected int thePKeyType, thePKeyIndex;
- protected boolean evaluatedMetaData=false;
- protected ArrayList metadataFields,metadataLabels,
- metadataNotNullFields;
- protected int[] metadataTypes;
- protected Class theEntityClass;
- protected StorageObject myselfDatabase;
- protected SimpleList popupCache=null;
- protected boolean hasPopupCache = false;
- protected SimpleHash hashCache=null;
- protected boolean hasTimestamp=true;
- private String database_driver, database_url;
- private int defaultLimit;
- protected DatabaseAdaptor theAdaptor;
- protected Logfile theLog;
- private static Class GENERIC_ENTITY_CLASS=null,
- STORABLE_OBJECT_ENTITY_CLASS=null;
- private static SimpleHash POPUP_EMTYLINE=new SimpleHash();
- protected static final ObjectStore o_store=ObjectStore.getInstance();
- private SimpleDateFormat _dateFormatterOut =
- new SimpleDateFormat("yyyy-MM-dd HH:mm:ss");
- private SimpleDateFormat _dateFormatterIn =
- new SimpleDateFormat("yyyy-MM-dd HH:mm");
- private Calendar _cal = new GregorianCalendar();
-
- private static final int _millisPerHour = 60 * 60 * 1000;
- private static final int _millisPerMinute = 60 * 1000;
-
- static {
- // always same object saves a little space
- POPUP_EMTYLINE.put("key", ""); POPUP_EMTYLINE.put("value", "--");
- try {
- GENERIC_ENTITY_CLASS = Class.forName("mir.entity.StorableObjectEntity");
- STORABLE_OBJECT_ENTITY_CLASS = Class.forName("mir.entity.StorableObjectEntity");
- }
- catch (Exception e) {
- System.err.println("FATAL: Database.java could not initialize" + e.getMessage());
- }
- }
-
-
- /**
- * Kontruktor bekommt den Filenamen des Konfigurationsfiles übergeben.
- * Aus diesem file werden <code>Database.Logfile</code>,
- * <code>Database.Username</code>,<code>Database.Password</code>,
- * <code>Database.Host</code> und <code>Database.Adaptor</code>
- * ausgelesen und ein Broker für die Verbindugen zur Datenbank
- * erzeugt.
- *
- * @param String confFilename Dateiname der Konfigurationsdatei
- */
- public Database() throws StorageObjectException {
- theLog = Logfile.getInstance(MirConfig.getProp("Home")+
- MirConfig.getProp("Database.Logfile"));
- String theAdaptorName=MirConfig.getProp("Database.Adaptor");
- defaultLimit = Integer.parseInt(MirConfig.getProp("Database.Limit"));
- try {
- theEntityClass = GENERIC_ENTITY_CLASS;
- theAdaptor = (DatabaseAdaptor)Class.forName(theAdaptorName).newInstance();
- } catch (Exception e){
- theLog.printError("Error in Database() constructor with "+
- theAdaptorName + " -- " +e.getMessage());
- throw new StorageObjectException("Error in Database() constructor with "
- +e.getMessage());
- }
- /*String database_username=MirConfig.getProp("Database.Username");
- String database_password=MirConfig.getProp("Database.Password");
- String database_host=MirConfig.getProp("Database.Host");
- try {
- database_driver=theAdaptor.getDriver();
- database_url=theAdaptor.getURL(database_username,database_password,
- database_host);
- theLog.printDebugInfo("adding Broker with: " +database_driver+":"+
- database_url );
- MirConfig.addBroker(database_driver,database_url);
- //myBroker=MirConfig.getBroker();
- }*/
- }
-
- /**
- * Liefert die Entity-Klasse zurück, in der eine Datenbankzeile gewrappt
- * wird. Wird die Entity-Klasse durch die erbende Klasse nicht überschrieben,
- * wird eine mir.entity.GenericEntity erzeugt.
- *
- * @return Class-Objekt der Entity
- */
- public java.lang.Class getEntityClass () {
- return theEntityClass;
- }
-
- /**
- * Liefert die Standardbeschränkung von select-Statements zurück, also
- * wieviel Datensätze per Default selektiert werden.
- *
- * @return Standard-Anzahl der Datensätze
- */
- public int getLimit () {
- return defaultLimit;
- }
-
- /**
- * Liefert den Namen des Primary-Keys zurück. Wird die Variable nicht von
- * der erbenden Klasse überschrieben, so ist der Wert <code>PKEY</code>
- * @return Name des Primary-Keys
- */
- public String getIdName () {
- return thePKeyName;
- }
-
- /**
- * Liefert den Namen der Tabelle, auf das sich das Datenbankobjekt bezieht.
- *
- * @return Name der Tabelle
- */
- public String getTableName () {
- return theTable;
- }
-
- /*
- * Dient dazu vererbte Tabellen bei objectrelationalen DBMS
- * zu speichern, wenn die id einer Tabelle in der parenttabelle verwaltet
- * wird.
- * @return liefert theCoreTabel als String zurueck, wenn gesetzt, sonst
- * the Table
- */
-
- public String getCoreTable(){
- if (theCoreTable!=null) return theCoreTable;
- else return theTable;
- }
-
- /**
- * Liefert Feldtypen der Felder der Tabelle zurueck (s.a. java.sql.Types)
- * @return int-Array mit den Typen der Felder
- * @exception StorageObjectException
- */
- public int[] getTypes () throws StorageObjectException {
- if (metadataTypes == null)
- get_meta_data();
- return metadataTypes;
- }
-
- /**
- * Liefert eine Liste der Labels der Tabellenfelder
- * @return ArrayListe mit Labeln
- * @exception StorageObjectException
- */
- public ArrayList getLabels () throws StorageObjectException {
- if (metadataLabels == null)
- get_meta_data();
- return metadataLabels;
- }
-
- /**
- * Liefert eine Liste der Felder der Tabelle
- * @return ArrayList mit Feldern
- * @exception StorageObjectException
- */
- public ArrayList getFields () throws StorageObjectException {
- if (metadataFields == null)
- get_meta_data();
- return metadataFields;
- }
-
-
- /*
- * Gets value out of ResultSet according to type and converts to String
- * @param inValue Wert aus ResultSet.
- * @param aType Datenbanktyp.
- * @return liefert den Wert als String zurueck. Wenn keine Umwandlung moeglich
- * dann /unsupported value/
- */
- private String getValueAsString (ResultSet rs, int valueIndex, int aType) throws StorageObjectException {
- String outValue = null;
- if (rs != null) {
- try {
- switch (aType) {
- case java.sql.Types.BIT:
- outValue = (rs.getBoolean(valueIndex) == true) ? "1" : "0";
- break;
- case java.sql.Types.INTEGER:case java.sql.Types.SMALLINT:case java.sql.Types.TINYINT:case java.sql.Types.BIGINT:
- int out = rs.getInt(valueIndex);
- if (!rs.wasNull())
- outValue = new Integer(out).toString();
- break;
- case java.sql.Types.NUMERIC:
- /** @todo Numeric can be float or double depending upon
- * metadata.getScale() / especially with oracle */
- long outl = rs.getLong(valueIndex);
- if (!rs.wasNull())
- outValue = new Long(outl).toString();
- break;
- case java.sql.Types.REAL:
- float tempf = rs.getFloat(valueIndex);
- if (!rs.wasNull()) {
- tempf *= 10;
- tempf += 0.5;
- int tempf_int = (int)tempf;
- tempf = (float)tempf_int;
- tempf /= 10;
- outValue = "" + tempf;
- outValue = outValue.replace('.', ',');
- }
- break;
- case java.sql.Types.DOUBLE:
- double tempd = rs.getDouble(valueIndex);
- if (!rs.wasNull()) {
- tempd *= 10;
- tempd += 0.5;
- int tempd_int = (int)tempd;
- tempd = (double)tempd_int;
- tempd /= 10;
- outValue = "" + tempd;
- outValue = outValue.replace('.', ',');
- }
- break;
- case java.sql.Types.CHAR:case java.sql.Types.VARCHAR:case java.sql.Types.LONGVARCHAR:
- outValue = rs.getString(valueIndex);
- //if (outValue != null)
- //outValue = StringUtil.encodeHtml(StringUtil.unquote(outValue));
- break;
- case java.sql.Types.LONGVARBINARY:
- outValue = rs.getString(valueIndex);
- //if (outValue != null)
- //outValue = StringUtil.encodeHtml(StringUtil.unquote(outValue));
- break;
- case java.sql.Types.TIMESTAMP:
- // it's important to use Timestamp here as getting it
- // as a string is undefined and is only there for debugging
- // according to the API. we can make it a string through formatting.
- // -mh
- Timestamp timestamp = (rs.getTimestamp(valueIndex));
- if(!rs.wasNull()) {
- java.util.Date date = new java.util.Date(timestamp.getTime());
- outValue = _dateFormatterOut.format(date);
- _cal.setTime(date);
- int offset = _cal.get(Calendar.ZONE_OFFSET)+
- _cal.get(Calendar.DST_OFFSET);
- String tzOffset = StringUtil.zeroPaddingNumber(
- offset/_millisPerHour,2,2);
- outValue = outValue+"+"+tzOffset;
- }
- break;
- default:
- outValue = "<unsupported value>";
- theLog.printWarning("Unsupported Datatype: at " + valueIndex +
- " (" + aType + ")");
- }
- } catch (SQLException e) {
- throw new StorageObjectException("Could not get Value out of Resultset -- "
- + e.getMessage());
- }
- }
- return outValue;
- }
-
- /*
- * select-Operator um einen Datensatz zu bekommen.
- * @param id Primaerschluessel des Datensatzes.
- * @return liefert EntityObject des gefundenen Datensatzes oder null.
- */
- public Entity selectById(String id) throws StorageObjectException
- {
- if (id==null||id.equals(""))
- throw new StorageObjectException("id war null");
-
- // ask object store for object
- if ( StoreUtil.implementsStorableObject(theEntityClass) ) {
- String uniqueId = id;
- if ( theEntityClass.equals(StorableObjectEntity.class) )
- uniqueId+="@"+theTable;
- StoreIdentifier search_sid = new StoreIdentifier(theEntityClass, uniqueId);
- theLog.printDebugInfo("CACHE: (dbg) looking for sid " + search_sid.toString());
- Entity hit = (Entity)o_store.use(search_sid);
- if ( hit!=null ) return hit;
- }
-
- Statement stmt=null;Connection con=getPooledCon();
- Entity returnEntity=null;
- try {
- ResultSet rs;
- /** @todo better prepared statement */
- String selectSql = "select * from " + theTable + " where " + thePKeyName + "=" + id;
- stmt = con.createStatement();
- rs = executeSql(stmt, selectSql);
- if (rs != null) {
- if (evaluatedMetaData==false) evalMetaData(rs.getMetaData());
- if (rs.next())
- returnEntity = makeEntityFromResultSet(rs);
- else theLog.printDebugInfo("Keine daten fuer id: " + id + "in Tabelle" + theTable);
- rs.close();
- }
- else {
- theLog.printDebugInfo("No Data for Id " + id + " in Table " + theTable);
- }
- }
- catch (SQLException sqe){
- throwSQLException(sqe,"selectById"); return null;
- }
- catch (NumberFormatException e) {
- theLog.printError("ID ist keine Zahl: " + id);
- }
- finally { freeConnection(con,stmt); }
-
- /** @todo OS: Entity should be saved in ostore */
- return returnEntity;
- }
-
-
- /**
- * select-Operator um Datensaetze zu bekommen, die key = value erfuellen.
- * @param key Datenbankfeld der Bedingung.
- * @param value Wert die der key anehmen muss.
- * @return EntityList mit den gematchten Entities
- */
- public EntityList selectByFieldValue(String aField, String aValue)
- throws StorageObjectException
- {
- return selectByFieldValue(aField, aValue, 0);
- }
-
- /**
- * select-Operator um Datensaetze zu bekommen, die key = value erfuellen.
- * @param key Datenbankfeld der Bedingung.
- * @param value Wert die der key anehmen muss.
- * @param offset Gibt an ab welchem Datensatz angezeigt werden soll.
- * @return EntityList mit den gematchten Entities
- */
- public EntityList selectByFieldValue(String aField, String aValue, int offset)
- throws StorageObjectException
- {
- return selectByWhereClause(aField + "=" + aValue, offset);
- }
-
-
- /**
- * select-Operator liefert eine EntityListe mit den gematchten Datensätzen zurück.
- * Also offset wird der erste Datensatz genommen.
- *
- * @param wc where-Clause
- * @return EntityList mit den gematchten Entities
- * @exception StorageObjectException
- */
- public EntityList selectByWhereClause(String where)
- throws StorageObjectException
- {
- return selectByWhereClause(where, 0);
- }
-
-
- /**
- * select-Operator liefert eine EntityListe mit den gematchten Datensätzen zurück.
- * Als maximale Anzahl wird das Limit auf der Konfiguration genommen.
- *
- * @param wc where-Clause
- * @param offset ab welchem Datensatz.
- * @return EntityList mit den gematchten Entities
- * @exception StorageObjectException
- */
- public EntityList selectByWhereClause(String whereClause, int offset)
- throws StorageObjectException
- {
- return selectByWhereClause(whereClause, null, offset);
- }
-
-
- /**
- * select-Operator liefert eine EntityListe mit den gematchten Datensätzen zurück.
- * Also offset wird der erste Datensatz genommen.
- * Als maximale Anzahl wird das Limit auf der Konfiguration genommen.
- *
- * @param wc where-Clause
- * @param ob orderBy-Clause
- * @return EntityList mit den gematchten Entities
- * @exception StorageObjectException
- */
-
- public EntityList selectByWhereClause(String where, String order)
- throws StorageObjectException {
- return selectByWhereClause(where, order, 0);
- }
-
-
- /**
- * select-Operator liefert eine EntityListe mit den gematchten Datensätzen zurück.
- * Als maximale Anzahl wird das Limit auf der Konfiguration genommen.
- *
- * @param wc where-Clause
- * @param ob orderBy-Clause
- * @param offset ab welchem Datensatz
- * @return EntityList mit den gematchten Entities
- * @exception StorageObjectException
- */
-
- public EntityList selectByWhereClause(String whereClause, String orderBy, int offset)
- throws StorageObjectException {
- return selectByWhereClause(whereClause, orderBy, offset, defaultLimit);
- }
-
-
- /**
- * select-Operator liefert eine EntityListe mit den gematchten Datensätzen zurück.
- * @param wc where-Clause
- * @param ob orderBy-Clause
- * @param offset ab welchem Datensatz
- * @param limit wieviele Datensätze
- * @return EntityList mit den gematchten Entities
- * @exception StorageObjectException
- */
-
- public EntityList selectByWhereClause(String wc, String ob, int offset, int limit)
- throws StorageObjectException
- {
-
- // check o_store for entitylist
- if ( StoreUtil.implementsStorableObject(theEntityClass) ) {
- StoreIdentifier search_sid =
- new StoreIdentifier( theEntityClass,
- StoreContainerType.STOC_TYPE_ENTITYLIST,
- StoreUtil.getEntityListUniqueIdentifierFor(theTable,wc,ob,offset,limit) );
- EntityList hit = (EntityList)o_store.use(search_sid);
- if ( hit!=null ) {
- theLog.printDebugInfo("CACHE (hit): " + search_sid.toString());
- return hit;
- }
- }
-
- // local
- EntityList theReturnList=null;
- Connection con=null; Statement stmt=null;
- ResultSet rs;
- int offsetCount = 0, count=0;
-
- // build sql-statement
-
- /** @todo count sql string should only be assembled if we really count
- * see below at the end of method //rk */
-
- if (wc != null && wc.length() == 0) {
- wc = null;
- }
- StringBuffer countSql = new StringBuffer("select count(*) from ").append(theTable);
- StringBuffer selectSql = new StringBuffer("select * from ").append(theTable);
- if (wc != null) {
- selectSql.append(" where ").append(wc);
- countSql.append(" where ").append(wc);
- }
- if (ob != null && !(ob.length() == 0)) {
- selectSql.append(" order by ").append(ob);
- }
- if (theAdaptor.hasLimit()) {
- if (limit > -1 && offset > -1) {
- selectSql.append(" limit ");
- if (theAdaptor.reverseLimit()) {
- selectSql.append(limit).append(",").append(offset);
- }
- else {
- selectSql.append(offset).append(",").append(limit);
- }
- }
- }
-
- // execute sql
- try {
- con = getPooledCon();
- stmt = con.createStatement();
-
- // selecting...
- rs = executeSql(stmt, selectSql.toString());
- if (rs != null) {
- if (!evaluatedMetaData) evalMetaData(rs.getMetaData());
-
- theReturnList = new EntityList();
- Entity theResultEntity;
- while (rs.next()) {
- theResultEntity = makeEntityFromResultSet(rs);
- theReturnList.add(theResultEntity);
- offsetCount++;
- }
- rs.close();
- }
-
- // making entitylist infos
- if (!(theAdaptor.hasLimit())) count = offsetCount;
-
- if (theReturnList != null) {
- // now we decide if we have to know an overall count...
- count=offsetCount;
- if (limit > -1 && offset > -1) {
- if (offsetCount==limit) {
- /** @todo counting should be deffered to entitylist
- * getSize() should be used */
- rs = executeSql(stmt, countSql.toString());
- if (rs != null) {
- if ( rs.next() ) count = rs.getInt(1);
- rs.close();
- }
- else theLog.printError("Could not count: " + countSql);
- }
- }
- theReturnList.setCount(count);
- theReturnList.setOffset(offset);
- theReturnList.setWhere(wc);
- theReturnList.setOrder(ob);
- theReturnList.setStorage(this);
- theReturnList.setLimit(limit);
- if ( offset >= limit )
- theReturnList.setPrevBatch(offset - limit);
- if ( offset+offsetCount < count )
- theReturnList.setNextBatch(offset + limit);
- if ( StoreUtil.implementsStorableObject(theEntityClass) ) {
- StoreIdentifier sid=theReturnList.getStoreIdentifier();
- theLog.printDebugInfo("CACHE (add): " + sid.toString());
- o_store.add(sid);
- }
- }
- }
- catch (SQLException sqe) { throwSQLException(sqe, "selectByWhereClause"); }
- finally { freeConnection(con, stmt); }
-
- return theReturnList;
- }
-
-
- /**
- * Bastelt aus einer Zeile der Datenbank ein EntityObjekt.
- *
- * @param rs Das ResultSetObjekt.
- * @return Entity Die Entity.
- */
- private Entity makeEntityFromResultSet (ResultSet rs)
- throws StorageObjectException
- {
- /** @todo OS: get Pkey from ResultSet and consult ObjectStore */
- HashMap theResultHash = new HashMap();
- String theResult = null;
- int theType;
- Entity returnEntity = null;
- try {
- int size = metadataFields.size();
- for (int i = 0; i < size; i++) {
- // alle durchlaufen bis nix mehr da
-
- theType = metadataTypes[i];
- if (theType == java.sql.Types.LONGVARBINARY) {
- InputStreamReader is = (InputStreamReader)rs.getCharacterStream(i + 1);
- if (is != null) {
- char[] data = new char[32768];
- StringBuffer theResultString = new StringBuffer();
- int len;
- while ((len = is.read(data)) > 0) {
- theResultString.append(data, 0, len);
- }
- is.close();
- theResult = theResultString.toString();
- }
- else {
- theResult = null;
- }
- }
- else {
- theResult = getValueAsString(rs, (i + 1), theType);
- }
- if (theResult != null) {
- theResultHash.put(metadataFields.get(i), theResult);
- }
- }
- if (theEntityClass != null) {
- returnEntity = (Entity)theEntityClass.newInstance();
- returnEntity.setValues(theResultHash);
- returnEntity.setStorage(myselfDatabase);
- if ( returnEntity instanceof StorableObject ) {
- theLog.printDebugInfo("CACHE: ( in) " + returnEntity.getId() + " :"+theTable);
- o_store.add(((StorableObject)returnEntity).getStoreIdentifier());
- }
- } else {
- throwStorageObjectException("Internal Error: theEntityClass not set!");
- }
- }
- catch (IllegalAccessException e) {
- throwStorageObjectException("No access! -- " + e.getMessage());
- }
- catch (IOException e) {
- throwStorageObjectException("IOException! -- " + e.getMessage());
- }
- catch (InstantiationException e) {
- throwStorageObjectException("No Instatiation! -- " + e.getMessage());
- }
- catch (SQLException sqe) {
- throwSQLException(sqe, "makeEntityFromResultSet");
- return null;
- }
- return returnEntity;
- }
-
- /**
- * insert-Operator: fügt eine Entity in die Tabelle ein. Eine Spalte WEBDB_CREATE
- * wird automatisch mit dem aktuellen Datum gefuellt.
- *
- * @param theEntity
- * @return der Wert des Primary-keys der eingefügten Entity
- */
- public String insert (Entity theEntity) throws StorageObjectException {
- //cache
- invalidatePopupCache();
-
- // invalidating all EntityLists corresponding with theEntityClass
- if ( StoreUtil.implementsStorableObject(theEntityClass) ) {
- StoreContainerType stoc_type =
- StoreContainerType.valueOf( theEntityClass,
- StoreContainerType.STOC_TYPE_ENTITYLIST);
- o_store.invalidate(stoc_type);
- }
-
- String returnId = null;
- Connection con = null; PreparedStatement pstmt = null;
-
- try {
- ArrayList streamedInput = theEntity.streamedInput();
- StringBuffer f = new StringBuffer();
- StringBuffer v = new StringBuffer();
- String aField, aValue;
- boolean firstField = true;
- // make sql-string
- for (int i = 0; i < getFields().size(); i++) {
- aField = (String)getFields().get(i);
- if (!aField.equals(thePKeyName)) {
- aValue = null;
- // sonderfaelle
- if (aField.equals("webdb_create") ||
- aField.equals("webdb_lastchange")) {
- aValue = "NOW()";
- }
- else {
- if (streamedInput != null && streamedInput.contains(aField)) {
- aValue = "?";
- }
- else {
- if (theEntity.hasValueForField(aField)) {
- aValue = "'" + JDBCStringRoutines.escapeStringLiteral((String)theEntity.getValue(aField)) + "'";
- }
- }
- }
- // wenn Wert gegeben, dann einbauen
- if (aValue != null) {
- if (firstField == false) {
- f.append(",");
- v.append(",");
- }
- else {
- firstField = false;
- }
- f.append(aField);
- v.append(aValue);
- }
- }
- } // end for
- // insert into db
- StringBuffer sqlBuf = new StringBuffer("insert into ").append(theTable).append("(").append(f).append(") values (").append(v).append(")");
- String sql = sqlBuf.toString();
- theLog.printInfo("INSERT: " + sql);
- con = getPooledCon();
- con.setAutoCommit(false);
- pstmt = con.prepareStatement(sql);
- if (streamedInput != null) {
- for (int i = 0; i < streamedInput.size(); i++) {
- String inputString = (String)theEntity.getValue((String)streamedInput.get(i));
- pstmt.setBytes(i + 1, inputString.getBytes());
- }
- }
- int ret = pstmt.executeUpdate();
- if(ret == 0){
- //insert failed
- return null;
- }
- pstmt = con.prepareStatement(theAdaptor.getLastInsertSQL((Database)myselfDatabase));
- ResultSet rs = pstmt.executeQuery();
- rs.next();
- returnId = rs.getString(1);
- theEntity.setId(returnId);
- } catch (SQLException sqe) {
- throwSQLException(sqe, "insert");
- } finally {
- try {
- con.setAutoCommit(true);
- } catch (Exception e) {
- ;
- }
- freeConnection(con, pstmt);
- }
- /** @todo store entity in o_store */
- return returnId;
- }
-
- /**
- * update-Operator: aktualisiert eine Entity. Eine Spalte WEBDB_LASTCHANGE
- * wird automatisch mit dem aktuellen Datum gefuellt.
- *
- * @param theEntity
- */
- public void update (Entity theEntity) throws StorageObjectException
- {
- Connection con = null; PreparedStatement pstmt = null;
- /** @todo this is stupid: why do we prepare statement, when we
- * throw it away afterwards. should be regular statement
- * update/insert could better be one routine called save()
- * that chooses to either insert or update depending if we
- * have a primary key in the entity. i don't know if we
- * still need the streamed input fields. // rk */
-
- /** @todo extension: check if Entity did change, otherwise we don't need
- * the roundtrip to the database */
-
- /** invalidating corresponding entitylists in o_store*/
- if ( StoreUtil.implementsStorableObject(theEntityClass) ) {
- StoreContainerType stoc_type =
- StoreContainerType.valueOf( theEntityClass,
- StoreContainerType.STOC_TYPE_ENTITYLIST);
- o_store.invalidate(stoc_type);
- }
-
- ArrayList streamedInput = theEntity.streamedInput();
- String id = theEntity.getId();
- String aField;
- StringBuffer fv = new StringBuffer();
- boolean firstField = true;
- //cache
- invalidatePopupCache();
- // build sql statement
- for (int i = 0; i < getFields().size(); i++) {
- aField = (String)metadataFields.get(i);
- // only normal cases
- if (!(aField.equals(thePKeyName) || aField.equals("webdb_create") ||
- aField.equals("webdb_lastchange") || (streamedInput != null && streamedInput.contains(aField)))) {
- if (theEntity.hasValueForField(aField)) {
- if (firstField == false) {
- fv.append(", ");
- }
- else {
- firstField = false;
- }
- fv.append(aField).append("='").append(JDBCStringRoutines.escapeStringLiteral((String) theEntity.getValue(aField))).append("'");
-
-// fv.append(aField).append("='").append(StringUtil.quote((String)theEntity.getValue(aField))).append("'");
- }
- }
- }
- StringBuffer sql = new StringBuffer("update ").append(theTable).append(" set ").append(fv);
- // exceptions
- if (metadataFields.contains("webdb_lastchange")) {
- sql.append(",webdb_lastchange=NOW()");
- }
- // special case: the webdb_create requires the field in yyyy-mm-dd HH:mm
- // format so anything extra will be ignored. -mh
- if (metadataFields.contains("webdb_create") &&
- theEntity.hasValueForField("webdb_create")) {
- // minimum of 10 (yyyy-mm-dd)...
- if (theEntity.getValue("webdb_create").length() >= 10) {
- String dateString = theEntity.getValue("webdb_create");
- // if only 10, then add 00:00 so it doesn't throw a ParseException
- if (dateString.length() == 10)
- dateString=dateString+" 00:00";
-
- // TimeStamp stuff
- try {
- java.util.Date d = _dateFormatterIn.parse(dateString);
- Timestamp tStamp = new Timestamp(d.getTime());
- sql.append(",webdb_create='"+tStamp.toString()+"'");
- } catch (ParseException e) {
- throw new StorageObjectException(e.getMessage());
- }
- }
- }
- if (streamedInput != null) {
- for (int i = 0; i < streamedInput.size(); i++) {
- sql.append(",").append(streamedInput.get(i)).append("=?");
- }
- }
- sql.append(" where id=").append(id);
- theLog.printInfo("UPDATE: " + sql);
- // execute sql
- try {
- con = getPooledCon();
- con.setAutoCommit(false);
- pstmt = con.prepareStatement(sql.toString());
- if (streamedInput != null) {
- for (int i = 0; i < streamedInput.size(); i++) {
- String inputString = theEntity.getValue((String)streamedInput.get(i));
- pstmt.setBytes(i + 1, inputString.getBytes());
- }
- }
- pstmt.executeUpdate();
- }
- catch (SQLException sqe) {
- throwSQLException(sqe, "update");
- }
- finally {
- try {
- con.setAutoCommit(true);
- } catch (Exception e) {
- ;
- }
- freeConnection(con, pstmt);
- }
- }
-
- /*
- * delete-Operator
- * @param id des zu loeschenden Datensatzes
- * @return boolean liefert true zurueck, wenn loeschen erfolgreich war.
- */
- public boolean delete (String id) throws StorageObjectException {
-
- invalidatePopupCache();
- // ostore send notification
- if ( StoreUtil.implementsStorableObject(theEntityClass) ) {
- String uniqueId = id;
- if ( theEntityClass.equals(StorableObjectEntity.class) )
- uniqueId+="@"+theTable;
- theLog.printInfo("CACHE: (del) " + id);
- StoreIdentifier search_sid =
- new StoreIdentifier(theEntityClass, StoreContainerType.STOC_TYPE_ENTITY, uniqueId);
- o_store.invalidate(search_sid);
- }
-
- /** @todo could be prepared Statement */
- Statement stmt = null; Connection con = null;
- int res = 0;
- String sql="delete from "+theTable+" where "+thePKeyName+"='"+id+"'";
- theLog.printInfo("DELETE " + sql);
- try {
- con = getPooledCon(); stmt = con.createStatement();
- res = stmt.executeUpdate(sql);
- }
- catch (SQLException sqe) { throwSQLException(sqe, "delete"); }
- finally { freeConnection(con, stmt); }
-
- return (res > 0) ? true : false;
- }
-
- /* noch nicht implementiert.
- * @return immer false
- */
- public boolean delete (EntityList theEntityList) {
- invalidatePopupCache();
- return false;
- }
-
- /**
- * Diese Methode sollte ueberschrieben werden, wenn fuer die abgeleitete Database-Klasse
- * eine SimpleList mit Standard-Popupdaten erzeugt werden koennen soll.
- * @return null
- */
- public SimpleList getPopupData () throws StorageObjectException {
- return null;
- }
-
- /**
- * Holt Daten fuer Popups.
- * @param name Name des Feldes.
- * @param hasNullValue Wenn true wird eine leerer Eintrag fuer die Popups erzeugt.
- * @return SimpleList Gibt freemarker.template.SimpleList zurueck.
- */
- public SimpleList getPopupData (String name, boolean hasNullValue)
- throws StorageObjectException {
- return getPopupData(name, hasNullValue, null);
- }
-
- /**
- * Holt Daten fuer Popups.
- * @param name Name des Feldes.
- * @param hasNullValue Wenn true wird eine leerer Eintrag fuer die Popups erzeugt.
- * @param where Schraenkt die Selektion der Datensaetze ein.
- * @return SimpleList Gibt freemarker.template.SimpleList zurueck.
- */
- public SimpleList getPopupData (String name, boolean hasNullValue, String where) throws StorageObjectException {
- return getPopupData(name, hasNullValue, where, null);
- }
-
- /**
- * Holt Daten fuer Popups.
- * @param name Name des Feldes.
- * @param hasNullValue Wenn true wird eine leerer Eintrag fuer die Popups erzeugt.
- * @param where Schraenkt die Selektion der Datensaetze ein.
- * @param order Gibt ein Feld als Sortierkriterium an.
- * @return SimpleList Gibt freemarker.template.SimpleList zurueck.
- */
- public SimpleList getPopupData (String name, boolean hasNullValue, String where, String order) throws StorageObjectException {
- // caching
- if (hasPopupCache && popupCache != null)
- return popupCache;
- SimpleList simpleList = null;
- Connection con = null;
- Statement stmt = null;
- // build sql
- StringBuffer sql = new StringBuffer("select ").append(thePKeyName)
- .append(",").append(name).append(" from ")
- .append(theTable);
- if (where != null && !(where.length() == 0))
- sql.append(" where ").append(where);
- sql.append(" order by ");
- if (order != null && !(order.length() == 0))
- sql.append(order);
- else
- sql.append(name);
- // execute sql
- try {
- con = getPooledCon();
- }
- catch (Exception e) {
- throw new StorageObjectException(e.getMessage());
- }
- try {
- stmt = con.createStatement();
- ResultSet rs = executeSql(stmt, sql.toString());
-
- if (rs != null) {
- if (!evaluatedMetaData) get_meta_data();
- simpleList = new SimpleList();
- // if popup has null-selector
- if (hasNullValue) simpleList.add(POPUP_EMTYLINE);
-
- SimpleHash popupDict;
- while (rs.next()) {
- popupDict = new SimpleHash();
- popupDict.put("key", getValueAsString(rs, 1, thePKeyType));
- popupDict.put("value", rs.getString(2));
- simpleList.add(popupDict);
- }
- rs.close();
- }
- }
- catch (Exception e) {
- theLog.printError("getPopupData: "+e.getMessage());
- throw new StorageObjectException(e.toString());
- }
- finally {
- freeConnection(con, stmt);
- }
-
- if (hasPopupCache) popupCache = simpleList;
- return simpleList;
- }
-
- /**
- * Liefert alle Daten der Tabelle als SimpleHash zurueck. Dies wird verwandt,
- * wenn in den Templates ein Lookup-Table benoetigt wird. Sollte nur bei kleinen
- * Tabellen Verwendung finden.
- * @return SimpleHash mit den Tabellezeilen.
- */
- public SimpleHash getHashData () {
- /** @todo dangerous! this should have a flag to be enabled, otherwise
- * very big Hashes could be returned */
- if (hashCache == null) {
- try {
- hashCache = HTMLTemplateProcessor.makeSimpleHash(selectByWhereClause("",
- -1));
- }
- catch (StorageObjectException e) {
- theLog.printDebugInfo(e.getMessage());
- }
- }
- return hashCache;
- }
-
- /* invalidates the popupCache
- */
- protected void invalidatePopupCache () {
- /** @todo invalidates toooo much */
- popupCache = null;
- hashCache = null;
- }
-
- /**
- * Diese Methode fuehrt den Sqlstring <i>sql</i> aus und timed im Logfile.
- * @param stmt Statemnt
- * @param sql Sql-String
- * @return ResultSet
- * @exception StorageObjectException
- */
- public ResultSet executeSql (Statement stmt, String sql)
- throws StorageObjectException, SQLException
- {
- long startTime = System.currentTimeMillis();
- ResultSet rs;
- try {
- rs = stmt.executeQuery(sql);
- theLog.printInfo((System.currentTimeMillis() - startTime) + "ms. for: "
- + sql);
- }
- catch (SQLException e)
- {
- theLog.printDebugInfo("Failed: " + (System.currentTimeMillis()
- - startTime) + "ms. for: "+ sql);
- throw e;
- }
-
- return rs;
- }
-
- /**
- * Fuehrt Statement stmt aus und liefert Resultset zurueck. Das SQL-Statment wird
- * getimed und geloggt.
- * @param stmt PreparedStatement mit der SQL-Anweisung
- * @return Liefert ResultSet des Statements zurueck.
- * @exception StorageObjectException, SQLException
- */
- public ResultSet executeSql (PreparedStatement stmt)
- throws StorageObjectException, SQLException {
-
- long startTime = (new java.util.Date()).getTime();
- ResultSet rs = stmt.executeQuery();
- theLog.printInfo((new java.util.Date().getTime() - startTime) + "ms.");
- return rs;
- }
-
- /**
- * returns the number of rows in the table
- */
- public int getSize(String where)
- throws SQLException,StorageObjectException
- {
- long startTime = System.currentTimeMillis();
- String sql = "SELECT Count(*) FROM "+ theTable;
- if (where != null && !(where.length() == 0))
- sql = sql + " where " + where;
- Connection con = null;
- Statement stmt = null;
- int result = 0;
-
- try {
- con = getPooledCon();
- stmt = con.createStatement();
- ResultSet rs = executeSql(stmt,sql);
- while(rs.next()){
- result = rs.getInt(1);
- }
- }
- catch (SQLException e) {
- theLog.printError(e.getMessage());
- }
- finally {
- freeConnection(con,stmt);
- }
- //theLog.printInfo(theTable + " has "+ result +" rows where " + where);
- theLog.printInfo((System.currentTimeMillis() - startTime) + "ms. for: "
- + sql);
- return result;
- }
-
- public int executeUpdate(Statement stmt, String sql)
- throws StorageObjectException, SQLException
- {
- int rs;
- long startTime = (new java.util.Date()).getTime();
- try
- {
- rs = stmt.executeUpdate(sql);
- theLog.printInfo((new java.util.Date().getTime() - startTime) + "ms. for: "
- + sql);
- }
- catch (SQLException e)
- {
- theLog.printDebugInfo("Failed: " + (new java.util.Date().getTime()
- - startTime) + "ms. for: "+ sql);
- throw e;
- }
- return rs;
- }
-
- public int executeUpdate(String sql) throws StorageObjectException, SQLException
- {
- int result=-1;
- long startTime = (new java.util.Date()).getTime();
- Connection con=null;
- PreparedStatement pstmt=null;
- try {
- con=getPooledCon();
- pstmt = con.prepareStatement(sql);
- result = pstmt.executeUpdate();
- }
- catch (Exception e) {
- theLog.printDebugInfo("settimage :: setImage failed: "+e.getMessage());
- throw new StorageObjectException("executeUpdate failed: "+e.getMessage());
- }
- finally {
- freeConnection(con,pstmt);
- }
- theLog.printInfo((new java.util.Date().getTime() - startTime) + "ms. for: " + sql);
- return result;
- }
-
- /**
- * Wertet ResultSetMetaData aus und setzt interne Daten entsprechend
- * @param md ResultSetMetaData
- * @exception StorageObjectException
- */
- private void evalMetaData (ResultSetMetaData md)
- throws StorageObjectException {
-
- this.evaluatedMetaData = true;
- this.metadataFields = new ArrayList();
- this.metadataLabels = new ArrayList();
- this.metadataNotNullFields = new ArrayList();
- try {
- int numFields = md.getColumnCount();
- this.metadataTypes = new int[numFields];
- String aField;
- int aType;
- for (int i = 1; i <= numFields; i++) {
- aField = md.getColumnName(i);
- metadataFields.add(aField);
- metadataLabels.add(md.getColumnLabel(i));
- aType = md.getColumnType(i);
- metadataTypes[i - 1] = aType;
- if (aField.equals(thePKeyName)) {
- thePKeyType = aType; thePKeyIndex = i;
- }
- if (md.isNullable(i) == md.columnNullable) {
- metadataNotNullFields.add(aField);
- }
- }
- } catch (SQLException e) {
- throwSQLException(e, "evalMetaData");
- }
- }
-
- /**
- * Wertet die Metadaten eines Resultsets fuer eine Tabelle aus,
- * um die alle Columns und Typen einer Tabelle zu ermitteln.
- */
- private void get_meta_data () throws StorageObjectException {
- Connection con = null;
- PreparedStatement pstmt = null;
- String sql = "select * from " + theTable + " where 0=1";
- try {
- con = getPooledCon();
- pstmt = con.prepareStatement(sql);
- theLog.printInfo("METADATA: " + sql);
- ResultSet rs = pstmt.executeQuery();
- evalMetaData(rs.getMetaData());
- rs.close();
- } catch (SQLException e) {
- throwSQLException(e, "get_meta_data");
- } finally {
- freeConnection(con, pstmt);
- }
- }
-
-
- public Connection getPooledCon() throws StorageObjectException {
- /* @todo , doublecheck but I'm pretty sure that this is unnecessary. -mh
- try{
- Class.forName("com.codestudio.sql.PoolMan").newInstance();
- } catch (Exception e){
- throw new StorageObjectException("Could not find the PoolMan Driver"
- +e.toString());
- }*/
- Connection con = null;
-
- try{
- con = SQLManager.getInstance().requestConnection();
- }
- catch(SQLException e){
- theLog.printError("could not connect to the database "+e.getMessage());
- System.err.println("could not connect to the database "+e.getMessage());
- throw new StorageObjectException("Could not connect to the database"+ e.getMessage());
- }
-
- return con;
- }
-
- public void freeConnection (Connection con, Statement stmt) throws StorageObjectException {
- SQLManager.getInstance().closeStatement(stmt);
- SQLManager.getInstance().returnConnection(con);
- }
-
- /**
- * Wertet SQLException aus und wirft dannach eine StorageObjectException
- * @param sqe SQLException
- * @param wo Funktonsname, in der die SQLException geworfen wurde
- * @exception StorageObjectException
- */
- protected void throwSQLException (SQLException sqe, String wo) throws StorageObjectException {
- String state = "";
- String message = "";
- int vendor = 0;
- if (sqe != null) {
- state = sqe.getSQLState();
- message = sqe.getMessage();
- vendor = sqe.getErrorCode();
- }
- theLog.printError(state + ": " + vendor + " : " + message + " Funktion: "
- + wo);
- throw new StorageObjectException((sqe == null) ? "undefined sql exception" :
- sqe.getMessage());
- }
-
- protected void _throwStorageObjectException (Exception e, String wo)
- throws StorageObjectException {
-
- if (e != null) {
- theLog.printError(e.getMessage()+ wo);
- throw new StorageObjectException(wo + e.getMessage());
- }
- else {
- theLog.printError(wo);
- throw new StorageObjectException(wo);
- }
-
- }
-
- /**
- * Loggt Fehlermeldung mit dem Parameter Message und wirft dannach
- * eine StorageObjectException
- * @param message Nachricht mit dem Fehler
- * @exception StorageObjectException
- */
- void throwStorageObjectException (String message)
- throws StorageObjectException {
- _throwStorageObjectException(null, message);
- }
-
-}
-
-
-
+/*\r
+ * Copyright (C) 2001, 2002 The Mir-coders group\r
+ *\r
+ * This file is part of Mir.\r
+ *\r
+ * Mir is free software; you can redistribute it and/or modify\r
+ * it under the terms of the GNU General Public License as published by\r
+ * the Free Software Foundation; either version 2 of the License, or\r
+ * (at your option) any later version.\r
+ *\r
+ * Mir is distributed in the hope that it will be useful,\r
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of\r
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the\r
+ * GNU General Public License for more details.\r
+ *\r
+ * You should have received a copy of the GNU General Public License\r
+ * along with Mir; if not, write to the Free Software\r
+ * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA\r
+ *\r
+ * In addition, as a special exception, The Mir-coders gives permission to link\r
+ * the code of this program with the com.oreilly.servlet library, any library\r
+ * licensed under the Apache Software License, The Sun (tm) Java Advanced\r
+ * Imaging library (JAI), The Sun JIMI library (or with modified versions of\r
+ * the above that use the same license as the above), and distribute linked\r
+ * combinations including the two. You must obey the GNU General Public\r
+ * License in all respects for all of the code used other than the above\r
+ * mentioned libraries. If you modify this file, you may extend this exception\r
+ * to your version of the file, but you are not obligated to do so. If you do\r
+ * not wish to do so, delete this exception statement from your version.\r
+ */\r
+\r
+package mir.storage;\r
+\r
+import java.sql.*;\r
+import java.lang.*;\r
+import java.io.*;\r
+import java.util.*;\r
+import java.text.SimpleDateFormat;\r
+import java.text.ParseException;\r
+import freemarker.template.*;\r
+import com.codestudio.sql.*;\r
+import com.codestudio.util.*;\r
+\r
+import mir.storage.StorageObject;\r
+import mir.storage.store.*;\r
+import mir.entity.*;\r
+import mir.misc.*;\r
+import mir.util.*;\r
+\r
+\r
+/**\r
+ * Diese Klasse implementiert die Zugriffsschicht auf die Datenbank.\r
+ * Alle Projektspezifischen Datenbankklassen erben von dieser Klasse.\r
+ * In den Unterklassen wird im Minimalfall nur die Tabelle angegeben.\r
+ * Im Konfigurationsfile findet sich eine Verweis auf den verwendeten\r
+ * Treiber, Host, User und Passwort, ueber den der Zugriff auf die\r
+ * Datenbank erfolgt.\r
+ *\r
+ * @version $Id: Database.java,v 1.28 2002/12/17 19:20:31 zapata Exp $\r
+ * @author rk\r
+ *\r
+ */\r
+public class Database implements StorageObject {\r
+\r
+ protected String theTable;\r
+ protected String theCoreTable=null;\r
+ protected String thePKeyName="id";\r
+ protected int thePKeyType, thePKeyIndex;\r
+ protected boolean evaluatedMetaData=false;\r
+ protected ArrayList metadataFields,metadataLabels,\r
+ metadataNotNullFields;\r
+ protected int[] metadataTypes;\r
+ protected Class theEntityClass;\r
+ protected StorageObject myselfDatabase;\r
+ protected SimpleList popupCache=null;\r
+ protected boolean hasPopupCache = false;\r
+ protected SimpleHash hashCache=null;\r
+ protected boolean hasTimestamp=true;\r
+ private String database_driver, database_url;\r
+ private int defaultLimit;\r
+ protected DatabaseAdaptor theAdaptor;\r
+ protected Logfile theLog;\r
+ private static Class GENERIC_ENTITY_CLASS=null,\r
+ STORABLE_OBJECT_ENTITY_CLASS=null;\r
+ private static SimpleHash POPUP_EMTYLINE=new SimpleHash();\r
+ protected static final ObjectStore o_store=ObjectStore.getInstance();\r
+ private SimpleDateFormat _dateFormatterOut =\r
+ new SimpleDateFormat("yyyy-MM-dd HH:mm:ss");\r
+ private SimpleDateFormat _dateFormatterIn =\r
+ new SimpleDateFormat("yyyy-MM-dd HH:mm");\r
+ private Calendar _cal = new GregorianCalendar();\r
+\r
+ private static final int _millisPerHour = 60 * 60 * 1000;\r
+ private static final int _millisPerMinute = 60 * 1000;\r
+\r
+ static {\r
+ // always same object saves a little space\r
+ POPUP_EMTYLINE.put("key", ""); POPUP_EMTYLINE.put("value", "--");\r
+ try {\r
+ GENERIC_ENTITY_CLASS = Class.forName("mir.entity.StorableObjectEntity");\r
+ STORABLE_OBJECT_ENTITY_CLASS = Class.forName("mir.entity.StorableObjectEntity");\r
+ }\r
+ catch (Exception e) {\r
+ System.err.println("FATAL: Database.java could not initialize" + e.getMessage());\r
+ }\r
+ }\r
+\r
+\r
+ /**\r
+ * Kontruktor bekommt den Filenamen des Konfigurationsfiles übergeben.\r
+ * Aus diesem file werden <code>Database.Logfile</code>,\r
+ * <code>Database.Username</code>,<code>Database.Password</code>,\r
+ * <code>Database.Host</code> und <code>Database.Adaptor</code>\r
+ * ausgelesen und ein Broker für die Verbindugen zur Datenbank\r
+ * erzeugt.\r
+ *\r
+ * @param String confFilename Dateiname der Konfigurationsdatei\r
+ */\r
+ public Database() throws StorageObjectException {\r
+ theLog = Logfile.getInstance(MirConfig.getProp("Home")+\r
+ MirConfig.getProp("Database.Logfile"));\r
+ String theAdaptorName=MirConfig.getProp("Database.Adaptor");\r
+ defaultLimit = Integer.parseInt(MirConfig.getProp("Database.Limit"));\r
+ try {\r
+ theEntityClass = GENERIC_ENTITY_CLASS;\r
+ theAdaptor = (DatabaseAdaptor)Class.forName(theAdaptorName).newInstance();\r
+ } catch (Exception e){\r
+ theLog.printError("Error in Database() constructor with "+\r
+ theAdaptorName + " -- " +e.getMessage());\r
+ throw new StorageObjectException("Error in Database() constructor with "\r
+ +e.getMessage());\r
+ }\r
+ /*String database_username=MirConfig.getProp("Database.Username");\r
+ String database_password=MirConfig.getProp("Database.Password");\r
+ String database_host=MirConfig.getProp("Database.Host");\r
+ try {\r
+ database_driver=theAdaptor.getDriver();\r
+ database_url=theAdaptor.getURL(database_username,database_password,\r
+ database_host);\r
+ theLog.printDebugInfo("adding Broker with: " +database_driver+":"+\r
+ database_url );\r
+ MirConfig.addBroker(database_driver,database_url);\r
+ //myBroker=MirConfig.getBroker();\r
+ }*/\r
+ }\r
+\r
+ /**\r
+ * Liefert die Entity-Klasse zurück, in der eine Datenbankzeile gewrappt\r
+ * wird. Wird die Entity-Klasse durch die erbende Klasse nicht überschrieben,\r
+ * wird eine mir.entity.GenericEntity erzeugt.\r
+ *\r
+ * @return Class-Objekt der Entity\r
+ */\r
+ public java.lang.Class getEntityClass () {\r
+ return theEntityClass;\r
+ }\r
+\r
+ /**\r
+ * Liefert die Standardbeschränkung von select-Statements zurück, also\r
+ * wieviel Datensätze per Default selektiert werden.\r
+ *\r
+ * @return Standard-Anzahl der Datensätze\r
+ */\r
+ public int getLimit () {\r
+ return defaultLimit;\r
+ }\r
+\r
+ /**\r
+ * Liefert den Namen des Primary-Keys zurück. Wird die Variable nicht von\r
+ * der erbenden Klasse überschrieben, so ist der Wert <code>PKEY</code>\r
+ * @return Name des Primary-Keys\r
+ */\r
+ public String getIdName () {\r
+ return thePKeyName;\r
+ }\r
+\r
+ /**\r
+ * Liefert den Namen der Tabelle, auf das sich das Datenbankobjekt bezieht.\r
+ *\r
+ * @return Name der Tabelle\r
+ */\r
+ public String getTableName () {\r
+ return theTable;\r
+ }\r
+\r
+ /*\r
+ * Dient dazu vererbte Tabellen bei objectrelationalen DBMS\r
+ * zu speichern, wenn die id einer Tabelle in der parenttabelle verwaltet\r
+ * wird.\r
+ * @return liefert theCoreTabel als String zurueck, wenn gesetzt, sonst\r
+ * the Table\r
+ */\r
+\r
+ public String getCoreTable(){\r
+ if (theCoreTable!=null) return theCoreTable;\r
+ else return theTable;\r
+ }\r
+\r
+ /**\r
+ * Liefert Feldtypen der Felder der Tabelle zurueck (s.a. java.sql.Types)\r
+ * @return int-Array mit den Typen der Felder\r
+ * @exception StorageObjectException\r
+ */\r
+ public int[] getTypes () throws StorageObjectException {\r
+ if (metadataTypes == null)\r
+ get_meta_data();\r
+ return metadataTypes;\r
+ }\r
+\r
+ /**\r
+ * Liefert eine Liste der Labels der Tabellenfelder\r
+ * @return ArrayListe mit Labeln\r
+ * @exception StorageObjectException\r
+ */\r
+ public ArrayList getLabels () throws StorageObjectException {\r
+ if (metadataLabels == null)\r
+ get_meta_data();\r
+ return metadataLabels;\r
+ }\r
+\r
+ /**\r
+ * Liefert eine Liste der Felder der Tabelle\r
+ * @return ArrayList mit Feldern\r
+ * @exception StorageObjectException\r
+ */\r
+ public ArrayList getFields () throws StorageObjectException {\r
+ if (metadataFields == null)\r
+ get_meta_data();\r
+ return metadataFields;\r
+ }\r
+\r
+\r
+ /*\r
+ * Gets value out of ResultSet according to type and converts to String\r
+ * @param inValue Wert aus ResultSet.\r
+ * @param aType Datenbanktyp.\r
+ * @return liefert den Wert als String zurueck. Wenn keine Umwandlung moeglich\r
+ * dann /unsupported value/\r
+ */\r
+ private String getValueAsString (ResultSet rs, int valueIndex, int aType) throws StorageObjectException {\r
+ String outValue = null;\r
+ if (rs != null) {\r
+ try {\r
+ switch (aType) {\r
+ case java.sql.Types.BIT:\r
+ outValue = (rs.getBoolean(valueIndex) == true) ? "1" : "0";\r
+ break;\r
+ case java.sql.Types.INTEGER:case java.sql.Types.SMALLINT:case java.sql.Types.TINYINT:case java.sql.Types.BIGINT:\r
+ int out = rs.getInt(valueIndex);\r
+ if (!rs.wasNull())\r
+ outValue = new Integer(out).toString();\r
+ break;\r
+ case java.sql.Types.NUMERIC:\r
+ /** @todo Numeric can be float or double depending upon\r
+ * metadata.getScale() / especially with oracle */\r
+ long outl = rs.getLong(valueIndex);\r
+ if (!rs.wasNull())\r
+ outValue = new Long(outl).toString();\r
+ break;\r
+ case java.sql.Types.REAL:\r
+ float tempf = rs.getFloat(valueIndex);\r
+ if (!rs.wasNull()) {\r
+ tempf *= 10;\r
+ tempf += 0.5;\r
+ int tempf_int = (int)tempf;\r
+ tempf = (float)tempf_int;\r
+ tempf /= 10;\r
+ outValue = "" + tempf;\r
+ outValue = outValue.replace('.', ',');\r
+ }\r
+ break;\r
+ case java.sql.Types.DOUBLE:\r
+ double tempd = rs.getDouble(valueIndex);\r
+ if (!rs.wasNull()) {\r
+ tempd *= 10;\r
+ tempd += 0.5;\r
+ int tempd_int = (int)tempd;\r
+ tempd = (double)tempd_int;\r
+ tempd /= 10;\r
+ outValue = "" + tempd;\r
+ outValue = outValue.replace('.', ',');\r
+ }\r
+ break;\r
+ case java.sql.Types.CHAR:case java.sql.Types.VARCHAR:case java.sql.Types.LONGVARCHAR:\r
+ outValue = rs.getString(valueIndex);\r
+ //if (outValue != null)\r
+ //outValue = StringUtil.encodeHtml(StringUtil.unquote(outValue));\r
+ break;\r
+ case java.sql.Types.LONGVARBINARY:\r
+ outValue = rs.getString(valueIndex);\r
+ //if (outValue != null)\r
+ //outValue = StringUtil.encodeHtml(StringUtil.unquote(outValue));\r
+ break;\r
+ case java.sql.Types.TIMESTAMP:\r
+ // it's important to use Timestamp here as getting it\r
+ // as a string is undefined and is only there for debugging\r
+ // according to the API. we can make it a string through formatting.\r
+ // -mh\r
+ Timestamp timestamp = (rs.getTimestamp(valueIndex));\r
+ if(!rs.wasNull()) {\r
+ java.util.Date date = new java.util.Date(timestamp.getTime());\r
+ outValue = _dateFormatterOut.format(date);\r
+ _cal.setTime(date);\r
+ int offset = _cal.get(Calendar.ZONE_OFFSET)+\r
+ _cal.get(Calendar.DST_OFFSET);\r
+ String tzOffset = StringUtil.zeroPaddingNumber(\r
+ offset/_millisPerHour,2,2);\r
+ outValue = outValue+"+"+tzOffset;\r
+ }\r
+ break;\r
+ default:\r
+ outValue = "<unsupported value>";\r
+ theLog.printWarning("Unsupported Datatype: at " + valueIndex +\r
+ " (" + aType + ")");\r
+ }\r
+ } catch (SQLException e) {\r
+ throw new StorageObjectException("Could not get Value out of Resultset -- "\r
+ + e.getMessage());\r
+ }\r
+ }\r
+ return outValue;\r
+ }\r
+\r
+ /*\r
+ * select-Operator um einen Datensatz zu bekommen.\r
+ * @param id Primaerschluessel des Datensatzes.\r
+ * @return liefert EntityObject des gefundenen Datensatzes oder null.\r
+ */\r
+ public Entity selectById(String id) throws StorageObjectException\r
+ {\r
+ if (id==null||id.equals(""))\r
+ throw new StorageObjectException("id war null");\r
+\r
+ // ask object store for object\r
+ if ( StoreUtil.implementsStorableObject(theEntityClass) ) {\r
+ String uniqueId = id;\r
+ if ( theEntityClass.equals(StorableObjectEntity.class) )\r
+ uniqueId+="@"+theTable;\r
+ StoreIdentifier search_sid = new StoreIdentifier(theEntityClass, uniqueId);\r
+ theLog.printDebugInfo("CACHE: (dbg) looking for sid " + search_sid.toString());\r
+ Entity hit = (Entity)o_store.use(search_sid);\r
+ if ( hit!=null ) return hit;\r
+ }\r
+\r
+ Statement stmt=null;Connection con=getPooledCon();\r
+ Entity returnEntity=null;\r
+ try {\r
+ ResultSet rs;\r
+ /** @todo better prepared statement */\r
+ String selectSql = "select * from " + theTable + " where " + thePKeyName + "=" + id;\r
+ stmt = con.createStatement();\r
+ rs = executeSql(stmt, selectSql);\r
+ if (rs != null) {\r
+ if (evaluatedMetaData==false) evalMetaData(rs.getMetaData());\r
+ if (rs.next())\r
+ returnEntity = makeEntityFromResultSet(rs);\r
+ else theLog.printDebugInfo("Keine daten fuer id: " + id + "in Tabelle" + theTable);\r
+ rs.close();\r
+ }\r
+ else {\r
+ theLog.printDebugInfo("No Data for Id " + id + " in Table " + theTable);\r
+ }\r
+ }\r
+ catch (SQLException sqe){\r
+ throwSQLException(sqe,"selectById"); return null;\r
+ }\r
+ catch (NumberFormatException e) {\r
+ theLog.printError("ID ist keine Zahl: " + id);\r
+ }\r
+ finally { freeConnection(con,stmt); }\r
+\r
+ /** @todo OS: Entity should be saved in ostore */\r
+ return returnEntity;\r
+ }\r
+\r
+\r
+ /**\r
+ * select-Operator um Datensaetze zu bekommen, die key = value erfuellen.\r
+ * @param key Datenbankfeld der Bedingung.\r
+ * @param value Wert die der key anehmen muss.\r
+ * @return EntityList mit den gematchten Entities\r
+ */\r
+ public EntityList selectByFieldValue(String aField, String aValue)\r
+ throws StorageObjectException\r
+ {\r
+ return selectByFieldValue(aField, aValue, 0);\r
+ }\r
+\r
+ /**\r
+ * select-Operator um Datensaetze zu bekommen, die key = value erfuellen.\r
+ * @param key Datenbankfeld der Bedingung.\r
+ * @param value Wert die der key anehmen muss.\r
+ * @param offset Gibt an ab welchem Datensatz angezeigt werden soll.\r
+ * @return EntityList mit den gematchten Entities\r
+ */\r
+ public EntityList selectByFieldValue(String aField, String aValue, int offset)\r
+ throws StorageObjectException\r
+ {\r
+ return selectByWhereClause(aField + "=" + aValue, offset);\r
+ }\r
+\r
+\r
+ /**\r
+ * select-Operator liefert eine EntityListe mit den gematchten Datensätzen zurück.\r
+ * Also offset wird der erste Datensatz genommen.\r
+ *\r
+ * @param wc where-Clause\r
+ * @return EntityList mit den gematchten Entities\r
+ * @exception StorageObjectException\r
+ */\r
+ public EntityList selectByWhereClause(String where)\r
+ throws StorageObjectException\r
+ {\r
+ return selectByWhereClause(where, 0);\r
+ }\r
+\r
+\r
+ /**\r
+ * select-Operator liefert eine EntityListe mit den gematchten Datensätzen zurück.\r
+ * Als maximale Anzahl wird das Limit auf der Konfiguration genommen.\r
+ *\r
+ * @param wc where-Clause\r
+ * @param offset ab welchem Datensatz.\r
+ * @return EntityList mit den gematchten Entities\r
+ * @exception StorageObjectException\r
+ */\r
+ public EntityList selectByWhereClause(String whereClause, int offset)\r
+ throws StorageObjectException\r
+ {\r
+ return selectByWhereClause(whereClause, null, offset);\r
+ }\r
+\r
+\r
+ /**\r
+ * select-Operator liefert eine EntityListe mit den gematchten Datensätzen zurück.\r
+ * Also offset wird der erste Datensatz genommen.\r
+ * Als maximale Anzahl wird das Limit auf der Konfiguration genommen.\r
+ *\r
+ * @param wc where-Clause\r
+ * @param ob orderBy-Clause\r
+ * @return EntityList mit den gematchten Entities\r
+ * @exception StorageObjectException\r
+ */\r
+\r
+ public EntityList selectByWhereClause(String where, String order)\r
+ throws StorageObjectException {\r
+ return selectByWhereClause(where, order, 0);\r
+ }\r
+\r
+\r
+ /**\r
+ * select-Operator liefert eine EntityListe mit den gematchten Datensätzen zurück.\r
+ * Als maximale Anzahl wird das Limit auf der Konfiguration genommen.\r
+ *\r
+ * @param wc where-Clause\r
+ * @param ob orderBy-Clause\r
+ * @param offset ab welchem Datensatz\r
+ * @return EntityList mit den gematchten Entities\r
+ * @exception StorageObjectException\r
+ */\r
+\r
+ public EntityList selectByWhereClause(String whereClause, String orderBy, int offset)\r
+ throws StorageObjectException {\r
+ return selectByWhereClause(whereClause, orderBy, offset, defaultLimit);\r
+ }\r
+\r
+\r
+ /**\r
+ * select-Operator liefert eine EntityListe mit den gematchten Datensätzen zurück.\r
+ * @param wc where-Clause\r
+ * @param ob orderBy-Clause\r
+ * @param offset ab welchem Datensatz\r
+ * @param limit wieviele Datensätze\r
+ * @return EntityList mit den gematchten Entities\r
+ * @exception StorageObjectException\r
+ */\r
+\r
+ public EntityList selectByWhereClause(String wc, String ob, int offset,\r
+ int limit) throws\r
+ StorageObjectException {\r
+\r
+ // check o_store for entitylist\r
+ if (StoreUtil.implementsStorableObject(theEntityClass)) {\r
+ StoreIdentifier search_sid =\r
+ new StoreIdentifier(theEntityClass,\r
+ StoreContainerType.STOC_TYPE_ENTITYLIST,\r
+ StoreUtil.getEntityListUniqueIdentifierFor(\r
+ theTable, wc, ob, offset, limit));\r
+ EntityList hit = (EntityList) o_store.use(search_sid);\r
+ if (hit != null) {\r
+ theLog.printDebugInfo("CACHE (hit): " + search_sid.toString());\r
+ return hit;\r
+ }\r
+ }\r
+\r
+ // local\r
+ EntityList theReturnList = null;\r
+ Connection con = null;\r
+ Statement stmt = null;\r
+ ResultSet rs;\r
+ int offsetCount = 0, count = 0;\r
+\r
+ // build sql-statement\r
+\r
+ /** @todo count sql string should only be assembled if we really count\r
+ * see below at the end of method //rk */\r
+\r
+ if (wc != null && wc.length() == 0) {\r
+ wc = null;\r
+ }\r
+ StringBuffer countSql = new StringBuffer("select count(*) from ").append(\r
+ theTable);\r
+ StringBuffer selectSql = new StringBuffer("select * from ").append(theTable);\r
+ if (wc != null) {\r
+ selectSql.append(" where ").append(wc);\r
+ countSql.append(" where ").append(wc);\r
+ }\r
+ if (ob != null && ! (ob.length() == 0)) {\r
+ selectSql.append(" order by ").append(ob);\r
+ }\r
+ if (theAdaptor.hasLimit()) {\r
+ if (limit > -1 && offset > -1) {\r
+ selectSql.append(" limit ");\r
+ if (theAdaptor.reverseLimit()) {\r
+ selectSql.append(limit).append(",").append(offset);\r
+ }\r
+ else {\r
+ selectSql.append(offset).append(",").append(limit);\r
+ }\r
+ }\r
+ }\r
+\r
+ // execute sql\r
+ try {\r
+ con = getPooledCon();\r
+ stmt = con.createStatement();\r
+\r
+ // selecting...\r
+ rs = executeSql(stmt, selectSql.toString());\r
+ if (rs != null) {\r
+ if (!evaluatedMetaData)\r
+ evalMetaData(rs.getMetaData());\r
+\r
+ theReturnList = new EntityList();\r
+ Entity theResultEntity;\r
+ while (rs.next()) {\r
+ theResultEntity = makeEntityFromResultSet(rs);\r
+ theReturnList.add(theResultEntity);\r
+ offsetCount++;\r
+ }\r
+ rs.close();\r
+ }\r
+\r
+ // making entitylist infos\r
+ if (! (theAdaptor.hasLimit()))\r
+ count = offsetCount;\r
+\r
+ if (theReturnList != null) {\r
+ // now we decide if we have to know an overall count...\r
+ count = offsetCount;\r
+ if (limit > -1 && offset > -1) {\r
+ if (offsetCount == limit) {\r
+ /** @todo counting should be deffered to entitylist\r
+ * getSize() should be used */\r
+ rs = executeSql(stmt, countSql.toString());\r
+ if (rs != null) {\r
+ if (rs.next())\r
+ count = rs.getInt(1);\r
+ rs.close();\r
+ }\r
+ else\r
+ theLog.printError("Could not count: " + countSql);\r
+ }\r
+ }\r
+ theReturnList.setCount(count);\r
+ theReturnList.setOffset(offset);\r
+ theReturnList.setWhere(wc);\r
+ theReturnList.setOrder(ob);\r
+ theReturnList.setStorage(this);\r
+ theReturnList.setLimit(limit);\r
+ if (offset >= limit)\r
+ theReturnList.setPrevBatch(offset - limit);\r
+ if (offset + offsetCount < count)\r
+ theReturnList.setNextBatch(offset + limit);\r
+ if (StoreUtil.implementsStorableObject(theEntityClass)) {\r
+ StoreIdentifier sid = theReturnList.getStoreIdentifier();\r
+ theLog.printDebugInfo("CACHE (add): " + sid.toString());\r
+ o_store.add(sid);\r
+ }\r
+ }\r
+ }\r
+ catch (SQLException sqe) {\r
+ throwSQLException(sqe, "selectByWhereClause");\r
+ }\r
+ finally {\r
+ try {\r
+ if (con != null)\r
+ freeConnection(con, stmt);\r
+ }\r
+ catch (Throwable t) {\r
+ }\r
+\r
+ }\r
+\r
+ return theReturnList;\r
+ }\r
+\r
+\r
+ /**\r
+ * Bastelt aus einer Zeile der Datenbank ein EntityObjekt.\r
+ *\r
+ * @param rs Das ResultSetObjekt.\r
+ * @return Entity Die Entity.\r
+ */\r
+ private Entity makeEntityFromResultSet (ResultSet rs)\r
+ throws StorageObjectException\r
+ {\r
+ /** @todo OS: get Pkey from ResultSet and consult ObjectStore */\r
+ HashMap theResultHash = new HashMap();\r
+ String theResult = null;\r
+ int theType;\r
+ Entity returnEntity = null;\r
+ try {\r
+ int size = metadataFields.size();\r
+ for (int i = 0; i < size; i++) {\r
+ // alle durchlaufen bis nix mehr da\r
+\r
+ theType = metadataTypes[i];\r
+ if (theType == java.sql.Types.LONGVARBINARY) {\r
+ InputStreamReader is = (InputStreamReader)rs.getCharacterStream(i + 1);\r
+ if (is != null) {\r
+ char[] data = new char[32768];\r
+ StringBuffer theResultString = new StringBuffer();\r
+ int len;\r
+ while ((len = is.read(data)) > 0) {\r
+ theResultString.append(data, 0, len);\r
+ }\r
+ is.close();\r
+ theResult = theResultString.toString();\r
+ }\r
+ else {\r
+ theResult = null;\r
+ }\r
+ }\r
+ else {\r
+ theResult = getValueAsString(rs, (i + 1), theType);\r
+ }\r
+ if (theResult != null) {\r
+ theResultHash.put(metadataFields.get(i), theResult);\r
+ }\r
+ }\r
+ if (theEntityClass != null) {\r
+ returnEntity = (Entity)theEntityClass.newInstance();\r
+ returnEntity.setValues(theResultHash);\r
+ returnEntity.setStorage(myselfDatabase);\r
+ if ( returnEntity instanceof StorableObject ) {\r
+ theLog.printDebugInfo("CACHE: ( in) " + returnEntity.getId() + " :"+theTable);\r
+ o_store.add(((StorableObject)returnEntity).getStoreIdentifier());\r
+ }\r
+ } else {\r
+ throwStorageObjectException("Internal Error: theEntityClass not set!");\r
+ }\r
+ }\r
+ catch (IllegalAccessException e) {\r
+ throwStorageObjectException("No access! -- " + e.getMessage());\r
+ }\r
+ catch (IOException e) {\r
+ throwStorageObjectException("IOException! -- " + e.getMessage());\r
+ }\r
+ catch (InstantiationException e) {\r
+ throwStorageObjectException("No Instatiation! -- " + e.getMessage());\r
+ }\r
+ catch (SQLException sqe) {\r
+ throwSQLException(sqe, "makeEntityFromResultSet");\r
+ return null;\r
+ }\r
+ return returnEntity;\r
+ }\r
+\r
+ /**\r
+ * insert-Operator: fügt eine Entity in die Tabelle ein. Eine Spalte WEBDB_CREATE\r
+ * wird automatisch mit dem aktuellen Datum gefuellt.\r
+ *\r
+ * @param theEntity\r
+ * @return der Wert des Primary-keys der eingefügten Entity\r
+ */\r
+ public String insert (Entity theEntity) throws StorageObjectException {\r
+ //cache\r
+ invalidatePopupCache();\r
+\r
+ // invalidating all EntityLists corresponding with theEntityClass\r
+ if ( StoreUtil.implementsStorableObject(theEntityClass) ) {\r
+ StoreContainerType stoc_type =\r
+ StoreContainerType.valueOf( theEntityClass,\r
+ StoreContainerType.STOC_TYPE_ENTITYLIST);\r
+ o_store.invalidate(stoc_type);\r
+ }\r
+\r
+ String returnId = null;\r
+ Connection con = null; PreparedStatement pstmt = null;\r
+\r
+ try {\r
+ ArrayList streamedInput = theEntity.streamedInput();\r
+ StringBuffer f = new StringBuffer();\r
+ StringBuffer v = new StringBuffer();\r
+ String aField, aValue;\r
+ boolean firstField = true;\r
+ // make sql-string\r
+ for (int i = 0; i < getFields().size(); i++) {\r
+ aField = (String)getFields().get(i);\r
+ if (!aField.equals(thePKeyName)) {\r
+ aValue = null;\r
+ // sonderfaelle\r
+ if (aField.equals("webdb_create") ||\r
+ aField.equals("webdb_lastchange")) {\r
+ aValue = "NOW()";\r
+ }\r
+ else {\r
+ if (streamedInput != null && streamedInput.contains(aField)) {\r
+ aValue = "?";\r
+ }\r
+ else {\r
+ if (theEntity.hasValueForField(aField)) {\r
+ aValue = "'" + JDBCStringRoutines.escapeStringLiteral((String)theEntity.getValue(aField)) + "'";\r
+ }\r
+ }\r
+ }\r
+ // wenn Wert gegeben, dann einbauen\r
+ if (aValue != null) {\r
+ if (firstField == false) {\r
+ f.append(",");\r
+ v.append(",");\r
+ }\r
+ else {\r
+ firstField = false;\r
+ }\r
+ f.append(aField);\r
+ v.append(aValue);\r
+ }\r
+ }\r
+ } // end for\r
+ // insert into db\r
+ StringBuffer sqlBuf = new StringBuffer("insert into ").append(theTable).append("(").append(f).append(") values (").append(v).append(")");\r
+ String sql = sqlBuf.toString();\r
+ theLog.printInfo("INSERT: " + sql);\r
+ con = getPooledCon();\r
+ con.setAutoCommit(false);\r
+ pstmt = con.prepareStatement(sql);\r
+ if (streamedInput != null) {\r
+ for (int i = 0; i < streamedInput.size(); i++) {\r
+ String inputString = (String)theEntity.getValue((String)streamedInput.get(i));\r
+ pstmt.setBytes(i + 1, inputString.getBytes());\r
+ }\r
+ }\r
+ int ret = pstmt.executeUpdate();\r
+ if(ret == 0){\r
+ //insert failed\r
+ return null;\r
+ }\r
+ pstmt = con.prepareStatement(theAdaptor.getLastInsertSQL((Database)myselfDatabase));\r
+ ResultSet rs = pstmt.executeQuery();\r
+ rs.next();\r
+ returnId = rs.getString(1);\r
+ theEntity.setId(returnId);\r
+ } catch (SQLException sqe) {\r
+ throwSQLException(sqe, "insert");\r
+ } finally {\r
+ try {\r
+ con.setAutoCommit(true);\r
+ } catch (Exception e) {\r
+ ;\r
+ }\r
+ freeConnection(con, pstmt);\r
+ }\r
+ /** @todo store entity in o_store */\r
+ return returnId;\r
+ }\r
+\r
+ /**\r
+ * update-Operator: aktualisiert eine Entity. Eine Spalte WEBDB_LASTCHANGE\r
+ * wird automatisch mit dem aktuellen Datum gefuellt.\r
+ *\r
+ * @param theEntity\r
+ */\r
+ public void update (Entity theEntity) throws StorageObjectException\r
+ {\r
+ Connection con = null; PreparedStatement pstmt = null;\r
+ /** @todo this is stupid: why do we prepare statement, when we\r
+ * throw it away afterwards. should be regular statement\r
+ * update/insert could better be one routine called save()\r
+ * that chooses to either insert or update depending if we\r
+ * have a primary key in the entity. i don't know if we\r
+ * still need the streamed input fields. // rk */\r
+\r
+ /** @todo extension: check if Entity did change, otherwise we don't need\r
+ * the roundtrip to the database */\r
+\r
+ /** invalidating corresponding entitylists in o_store*/\r
+ if ( StoreUtil.implementsStorableObject(theEntityClass) ) {\r
+ StoreContainerType stoc_type =\r
+ StoreContainerType.valueOf( theEntityClass,\r
+ StoreContainerType.STOC_TYPE_ENTITYLIST);\r
+ o_store.invalidate(stoc_type);\r
+ }\r
+\r
+ ArrayList streamedInput = theEntity.streamedInput();\r
+ String id = theEntity.getId();\r
+ String aField;\r
+ StringBuffer fv = new StringBuffer();\r
+ boolean firstField = true;\r
+ //cache\r
+ invalidatePopupCache();\r
+ // build sql statement\r
+ for (int i = 0; i < getFields().size(); i++) {\r
+ aField = (String)metadataFields.get(i);\r
+ // only normal cases\r
+ if (!(aField.equals(thePKeyName) || aField.equals("webdb_create") ||\r
+ aField.equals("webdb_lastchange") || (streamedInput != null && streamedInput.contains(aField)))) {\r
+ if (theEntity.hasValueForField(aField)) {\r
+ if (firstField == false) {\r
+ fv.append(", ");\r
+ }\r
+ else {\r
+ firstField = false;\r
+ }\r
+ fv.append(aField).append("='").append(JDBCStringRoutines.escapeStringLiteral((String) theEntity.getValue(aField))).append("'");\r
+\r
+// fv.append(aField).append("='").append(StringUtil.quote((String)theEntity.getValue(aField))).append("'");\r
+ }\r
+ }\r
+ }\r
+ StringBuffer sql = new StringBuffer("update ").append(theTable).append(" set ").append(fv);\r
+ // exceptions\r
+ if (metadataFields.contains("webdb_lastchange")) {\r
+ sql.append(",webdb_lastchange=NOW()");\r
+ }\r
+ // special case: the webdb_create requires the field in yyyy-mm-dd HH:mm\r
+ // format so anything extra will be ignored. -mh\r
+ if (metadataFields.contains("webdb_create") &&\r
+ theEntity.hasValueForField("webdb_create")) {\r
+ // minimum of 10 (yyyy-mm-dd)...\r
+ if (theEntity.getValue("webdb_create").length() >= 10) {\r
+ String dateString = theEntity.getValue("webdb_create");\r
+ // if only 10, then add 00:00 so it doesn't throw a ParseException\r
+ if (dateString.length() == 10)\r
+ dateString=dateString+" 00:00";\r
+\r
+ // TimeStamp stuff\r
+ try {\r
+ java.util.Date d = _dateFormatterIn.parse(dateString);\r
+ Timestamp tStamp = new Timestamp(d.getTime());\r
+ sql.append(",webdb_create='"+tStamp.toString()+"'");\r
+ } catch (ParseException e) {\r
+ throw new StorageObjectException(e.getMessage());\r
+ }\r
+ }\r
+ }\r
+ if (streamedInput != null) {\r
+ for (int i = 0; i < streamedInput.size(); i++) {\r
+ sql.append(",").append(streamedInput.get(i)).append("=?");\r
+ }\r
+ }\r
+ sql.append(" where id=").append(id);\r
+ theLog.printInfo("UPDATE: " + sql);\r
+ // execute sql\r
+ try {\r
+ con = getPooledCon();\r
+ con.setAutoCommit(false);\r
+ pstmt = con.prepareStatement(sql.toString());\r
+ if (streamedInput != null) {\r
+ for (int i = 0; i < streamedInput.size(); i++) {\r
+ String inputString = theEntity.getValue((String)streamedInput.get(i));\r
+ pstmt.setBytes(i + 1, inputString.getBytes());\r
+ }\r
+ }\r
+ pstmt.executeUpdate();\r
+ }\r
+ catch (SQLException sqe) {\r
+ throwSQLException(sqe, "update");\r
+ }\r
+ finally {\r
+ try {\r
+ con.setAutoCommit(true);\r
+ } catch (Exception e) {\r
+ ;\r
+ }\r
+ freeConnection(con, pstmt);\r
+ }\r
+ }\r
+\r
+ /*\r
+ * delete-Operator\r
+ * @param id des zu loeschenden Datensatzes\r
+ * @return boolean liefert true zurueck, wenn loeschen erfolgreich war.\r
+ */\r
+ public boolean delete (String id) throws StorageObjectException {\r
+\r
+ invalidatePopupCache();\r
+ // ostore send notification\r
+ if ( StoreUtil.implementsStorableObject(theEntityClass) ) {\r
+ String uniqueId = id;\r
+ if ( theEntityClass.equals(StorableObjectEntity.class) )\r
+ uniqueId+="@"+theTable;\r
+ theLog.printInfo("CACHE: (del) " + id);\r
+ StoreIdentifier search_sid =\r
+ new StoreIdentifier(theEntityClass, StoreContainerType.STOC_TYPE_ENTITY, uniqueId);\r
+ o_store.invalidate(search_sid);\r
+ }\r
+\r
+ /** @todo could be prepared Statement */\r
+ Statement stmt = null; Connection con = null;\r
+ int res = 0;\r
+ String sql="delete from "+theTable+" where "+thePKeyName+"='"+id+"'";\r
+ theLog.printInfo("DELETE " + sql);\r
+ try {\r
+ con = getPooledCon(); stmt = con.createStatement();\r
+ res = stmt.executeUpdate(sql);\r
+ }\r
+ catch (SQLException sqe) { throwSQLException(sqe, "delete"); }\r
+ finally { freeConnection(con, stmt); }\r
+\r
+ return (res > 0) ? true : false;\r
+ }\r
+\r
+ /* noch nicht implementiert.\r
+ * @return immer false\r
+ */\r
+ public boolean delete (EntityList theEntityList) {\r
+ invalidatePopupCache();\r
+ return false;\r
+ }\r
+\r
+ /**\r
+ * Diese Methode sollte ueberschrieben werden, wenn fuer die abgeleitete Database-Klasse\r
+ * eine SimpleList mit Standard-Popupdaten erzeugt werden koennen soll.\r
+ * @return null\r
+ */\r
+ public SimpleList getPopupData () throws StorageObjectException {\r
+ return null;\r
+ }\r
+\r
+ /**\r
+ * Holt Daten fuer Popups.\r
+ * @param name Name des Feldes.\r
+ * @param hasNullValue Wenn true wird eine leerer Eintrag fuer die Popups erzeugt.\r
+ * @return SimpleList Gibt freemarker.template.SimpleList zurueck.\r
+ */\r
+ public SimpleList getPopupData (String name, boolean hasNullValue)\r
+ throws StorageObjectException {\r
+ return getPopupData(name, hasNullValue, null);\r
+ }\r
+\r
+ /**\r
+ * Holt Daten fuer Popups.\r
+ * @param name Name des Feldes.\r
+ * @param hasNullValue Wenn true wird eine leerer Eintrag fuer die Popups erzeugt.\r
+ * @param where Schraenkt die Selektion der Datensaetze ein.\r
+ * @return SimpleList Gibt freemarker.template.SimpleList zurueck.\r
+ */\r
+ public SimpleList getPopupData (String name, boolean hasNullValue, String where) throws StorageObjectException {\r
+ return getPopupData(name, hasNullValue, where, null);\r
+ }\r
+\r
+ /**\r
+ * Holt Daten fuer Popups.\r
+ * @param name Name des Feldes.\r
+ * @param hasNullValue Wenn true wird eine leerer Eintrag fuer die Popups erzeugt.\r
+ * @param where Schraenkt die Selektion der Datensaetze ein.\r
+ * @param order Gibt ein Feld als Sortierkriterium an.\r
+ * @return SimpleList Gibt freemarker.template.SimpleList zurueck.\r
+ */\r
+ public SimpleList getPopupData (String name, boolean hasNullValue, String where, String order) throws StorageObjectException {\r
+ // caching\r
+ if (hasPopupCache && popupCache != null)\r
+ return popupCache;\r
+ SimpleList simpleList = null;\r
+ Connection con = null;\r
+ Statement stmt = null;\r
+ // build sql\r
+ StringBuffer sql = new StringBuffer("select ").append(thePKeyName)\r
+ .append(",").append(name).append(" from ")\r
+ .append(theTable);\r
+ if (where != null && !(where.length() == 0))\r
+ sql.append(" where ").append(where);\r
+ sql.append(" order by ");\r
+ if (order != null && !(order.length() == 0))\r
+ sql.append(order);\r
+ else\r
+ sql.append(name);\r
+ // execute sql\r
+ try {\r
+ con = getPooledCon();\r
+ }\r
+ catch (Exception e) {\r
+ throw new StorageObjectException(e.getMessage());\r
+ }\r
+ try {\r
+ stmt = con.createStatement();\r
+ ResultSet rs = executeSql(stmt, sql.toString());\r
+\r
+ if (rs != null) {\r
+ if (!evaluatedMetaData) get_meta_data();\r
+ simpleList = new SimpleList();\r
+ // if popup has null-selector\r
+ if (hasNullValue) simpleList.add(POPUP_EMTYLINE);\r
+\r
+ SimpleHash popupDict;\r
+ while (rs.next()) {\r
+ popupDict = new SimpleHash();\r
+ popupDict.put("key", getValueAsString(rs, 1, thePKeyType));\r
+ popupDict.put("value", rs.getString(2));\r
+ simpleList.add(popupDict);\r
+ }\r
+ rs.close();\r
+ }\r
+ }\r
+ catch (Exception e) {\r
+ theLog.printError("getPopupData: "+e.getMessage());\r
+ throw new StorageObjectException(e.toString());\r
+ }\r
+ finally {\r
+ freeConnection(con, stmt);\r
+ }\r
+\r
+ if (hasPopupCache) popupCache = simpleList;\r
+ return simpleList;\r
+ }\r
+\r
+ /**\r
+ * Liefert alle Daten der Tabelle als SimpleHash zurueck. Dies wird verwandt,\r
+ * wenn in den Templates ein Lookup-Table benoetigt wird. Sollte nur bei kleinen\r
+ * Tabellen Verwendung finden.\r
+ * @return SimpleHash mit den Tabellezeilen.\r
+ */\r
+ public SimpleHash getHashData () {\r
+ /** @todo dangerous! this should have a flag to be enabled, otherwise\r
+ * very big Hashes could be returned */\r
+ if (hashCache == null) {\r
+ try {\r
+ hashCache = HTMLTemplateProcessor.makeSimpleHash(selectByWhereClause("",\r
+ -1));\r
+ }\r
+ catch (StorageObjectException e) {\r
+ theLog.printDebugInfo(e.getMessage());\r
+ }\r
+ }\r
+ return hashCache;\r
+ }\r
+\r
+ /* invalidates the popupCache\r
+ */\r
+ protected void invalidatePopupCache () {\r
+ /** @todo invalidates toooo much */\r
+ popupCache = null;\r
+ hashCache = null;\r
+ }\r
+\r
+ /**\r
+ * Diese Methode fuehrt den Sqlstring <i>sql</i> aus und timed im Logfile.\r
+ * @param stmt Statemnt\r
+ * @param sql Sql-String\r
+ * @return ResultSet\r
+ * @exception StorageObjectException\r
+ */\r
+ public ResultSet executeSql (Statement stmt, String sql)\r
+ throws StorageObjectException, SQLException\r
+ {\r
+ long startTime = System.currentTimeMillis();\r
+ ResultSet rs;\r
+ try {\r
+ rs = stmt.executeQuery(sql);\r
+ theLog.printInfo((System.currentTimeMillis() - startTime) + "ms. for: "\r
+ + sql);\r
+ }\r
+ catch (SQLException e)\r
+ {\r
+ theLog.printDebugInfo("Failed: " + (System.currentTimeMillis()\r
+ - startTime) + "ms. for: "+ sql);\r
+ throw e;\r
+ }\r
+\r
+ return rs;\r
+ }\r
+\r
+ /**\r
+ * Fuehrt Statement stmt aus und liefert Resultset zurueck. Das SQL-Statment wird\r
+ * getimed und geloggt.\r
+ * @param stmt PreparedStatement mit der SQL-Anweisung\r
+ * @return Liefert ResultSet des Statements zurueck.\r
+ * @exception StorageObjectException, SQLException\r
+ */\r
+ public ResultSet executeSql (PreparedStatement stmt)\r
+ throws StorageObjectException, SQLException {\r
+\r
+ long startTime = (new java.util.Date()).getTime();\r
+ ResultSet rs = stmt.executeQuery();\r
+ theLog.printInfo((new java.util.Date().getTime() - startTime) + "ms.");\r
+ return rs;\r
+ }\r
+\r
+ /**\r
+ * returns the number of rows in the table\r
+ */\r
+ public int getSize(String where)\r
+ throws SQLException,StorageObjectException\r
+ {\r
+ long startTime = System.currentTimeMillis();\r
+ String sql = "SELECT Count(*) FROM "+ theTable;\r
+ if (where != null && !(where.length() == 0))\r
+ sql = sql + " where " + where;\r
+ Connection con = null;\r
+ Statement stmt = null;\r
+ int result = 0;\r
+\r
+ try {\r
+ con = getPooledCon();\r
+ stmt = con.createStatement();\r
+ ResultSet rs = executeSql(stmt,sql);\r
+ while(rs.next()){\r
+ result = rs.getInt(1);\r
+ }\r
+ }\r
+ catch (SQLException e) {\r
+ theLog.printError(e.getMessage());\r
+ }\r
+ finally {\r
+ freeConnection(con,stmt);\r
+ }\r
+ //theLog.printInfo(theTable + " has "+ result +" rows where " + where);\r
+ theLog.printInfo((System.currentTimeMillis() - startTime) + "ms. for: "\r
+ + sql);\r
+ return result;\r
+ }\r
+\r
+ public int executeUpdate(Statement stmt, String sql)\r
+ throws StorageObjectException, SQLException\r
+ {\r
+ int rs;\r
+ long startTime = (new java.util.Date()).getTime();\r
+ try\r
+ {\r
+ rs = stmt.executeUpdate(sql);\r
+ theLog.printInfo((new java.util.Date().getTime() - startTime) + "ms. for: "\r
+ + sql);\r
+ }\r
+ catch (SQLException e)\r
+ {\r
+ theLog.printDebugInfo("Failed: " + (new java.util.Date().getTime()\r
+ - startTime) + "ms. for: "+ sql);\r
+ throw e;\r
+ }\r
+ return rs;\r
+ }\r
+\r
+ public int executeUpdate(String sql) throws StorageObjectException, SQLException\r
+ {\r
+ int result=-1;\r
+ long startTime = (new java.util.Date()).getTime();\r
+ Connection con=null;\r
+ PreparedStatement pstmt=null;\r
+ try {\r
+ con=getPooledCon();\r
+ pstmt = con.prepareStatement(sql);\r
+ result = pstmt.executeUpdate();\r
+ }\r
+ catch (Exception e) {\r
+ theLog.printDebugInfo("settimage :: setImage failed: "+e.getMessage());\r
+ throw new StorageObjectException("executeUpdate failed: "+e.getMessage());\r
+ }\r
+ finally {\r
+ freeConnection(con,pstmt);\r
+ }\r
+ theLog.printInfo((new java.util.Date().getTime() - startTime) + "ms. for: " + sql);\r
+ return result;\r
+ }\r
+\r
+ /**\r
+ * Wertet ResultSetMetaData aus und setzt interne Daten entsprechend\r
+ * @param md ResultSetMetaData\r
+ * @exception StorageObjectException\r
+ */\r
+ private void evalMetaData (ResultSetMetaData md)\r
+ throws StorageObjectException {\r
+\r
+ this.evaluatedMetaData = true;\r
+ this.metadataFields = new ArrayList();\r
+ this.metadataLabels = new ArrayList();\r
+ this.metadataNotNullFields = new ArrayList();\r
+ try {\r
+ int numFields = md.getColumnCount();\r
+ this.metadataTypes = new int[numFields];\r
+ String aField;\r
+ int aType;\r
+ for (int i = 1; i <= numFields; i++) {\r
+ aField = md.getColumnName(i);\r
+ metadataFields.add(aField);\r
+ metadataLabels.add(md.getColumnLabel(i));\r
+ aType = md.getColumnType(i);\r
+ metadataTypes[i - 1] = aType;\r
+ if (aField.equals(thePKeyName)) {\r
+ thePKeyType = aType; thePKeyIndex = i;\r
+ }\r
+ if (md.isNullable(i) == md.columnNullable) {\r
+ metadataNotNullFields.add(aField);\r
+ }\r
+ }\r
+ } catch (SQLException e) {\r
+ throwSQLException(e, "evalMetaData");\r
+ }\r
+ }\r
+\r
+ /**\r
+ * Wertet die Metadaten eines Resultsets fuer eine Tabelle aus,\r
+ * um die alle Columns und Typen einer Tabelle zu ermitteln.\r
+ */\r
+ private void get_meta_data () throws StorageObjectException {\r
+ Connection con = null;\r
+ PreparedStatement pstmt = null;\r
+ String sql = "select * from " + theTable + " where 0=1";\r
+ try {\r
+ con = getPooledCon();\r
+ pstmt = con.prepareStatement(sql);\r
+ theLog.printInfo("METADATA: " + sql);\r
+ ResultSet rs = pstmt.executeQuery();\r
+ evalMetaData(rs.getMetaData());\r
+ rs.close();\r
+ } catch (SQLException e) {\r
+ throwSQLException(e, "get_meta_data");\r
+ } finally {\r
+ freeConnection(con, pstmt);\r
+ }\r
+ }\r
+\r
+\r
+ public Connection getPooledCon() throws StorageObjectException {\r
+ /* @todo , doublecheck but I'm pretty sure that this is unnecessary. -mh\r
+ try{\r
+ Class.forName("com.codestudio.sql.PoolMan").newInstance();\r
+ } catch (Exception e){\r
+ throw new StorageObjectException("Could not find the PoolMan Driver"\r
+ +e.toString());\r
+ }*/\r
+ Connection con = null;\r
+\r
+ try{\r
+ con = SQLManager.getInstance().requestConnection();\r
+ }\r
+ catch(SQLException e){\r
+ theLog.printError("could not connect to the database "+e.getMessage());\r
+ System.err.println("could not connect to the database "+e.getMessage());\r
+ throw new StorageObjectException("Could not connect to the database"+ e.getMessage());\r
+ }\r
+\r
+ return con;\r
+ }\r
+\r
+ public void freeConnection (Connection con, Statement stmt) throws StorageObjectException {\r
+ SQLManager.getInstance().closeStatement(stmt);\r
+ SQLManager.getInstance().returnConnection(con);\r
+ }\r
+\r
+ /**\r
+ * Wertet SQLException aus und wirft dannach eine StorageObjectException\r
+ * @param sqe SQLException\r
+ * @param wo Funktonsname, in der die SQLException geworfen wurde\r
+ * @exception StorageObjectException\r
+ */\r
+ protected void throwSQLException (SQLException sqe, String wo) throws StorageObjectException {\r
+ String state = "";\r
+ String message = "";\r
+ int vendor = 0;\r
+ if (sqe != null) {\r
+ state = sqe.getSQLState();\r
+ message = sqe.getMessage();\r
+ vendor = sqe.getErrorCode();\r
+ }\r
+ theLog.printError(state + ": " + vendor + " : " + message + " Funktion: "\r
+ + wo);\r
+ throw new StorageObjectException((sqe == null) ? "undefined sql exception" :\r
+ sqe.getMessage());\r
+ }\r
+\r
+ protected void _throwStorageObjectException (Exception e, String wo)\r
+ throws StorageObjectException {\r
+\r
+ if (e != null) {\r
+ theLog.printError(e.getMessage()+ wo);\r
+ throw new StorageObjectException(wo + e.getMessage());\r
+ }\r
+ else {\r
+ theLog.printError(wo);\r
+ throw new StorageObjectException(wo);\r
+ }\r
+\r
+ }\r
+\r
+ /**\r
+ * Loggt Fehlermeldung mit dem Parameter Message und wirft dannach\r
+ * eine StorageObjectException\r
+ * @param message Nachricht mit dem Fehler\r
+ * @exception StorageObjectException\r
+ */\r
+ void throwStorageObjectException (String message)\r
+ throws StorageObjectException {\r
+ _throwStorageObjectException(null, message);\r
+ }\r
+\r
+}\r
+\r
+\r
+\r
projects / mir.git / commitdiff