2 * Copyright (C) 2001, 2002 The Mir-coders group
4 * This file is part of Mir.
6 * Mir is free software; you can redistribute it and/or modify
7 * it under the terms of the GNU General Public License as published by
8 * the Free Software Foundation; either version 2 of the License, or
9 * (at your option) any later version.
11 * Mir is distributed in the hope that it will be useful,
12 * but WITHOUT ANY WARRANTY; without even the implied warranty of
13 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
14 * GNU General Public License for more details.
16 * You should have received a copy of the GNU General Public License
17 * along with Mir; if not, write to the Free Software
18 * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
20 * In addition, as a special exception, The Mir-coders gives permission to link
21 * the code of this program with any library licensed under the Apache Software License,
22 * The Sun (tm) Java Advanced Imaging library (JAI), The Sun JIMI library
23 * (or with modified versions of the above that use the same license as the above),
24 * and distribute linked combinations including the two. You must obey the
25 * GNU General Public License in all respects for all of the code used other than
26 * the above mentioned libraries. If you modify this file, you may extend this
27 * exception to your version of the file, but you are not obligated to do so.
28 * If you do not wish to do so, delete this exception statement from your version.
32 import mir.entity.adapter.EntityAdapterEngine;
33 import mir.entity.adapter.EntityAdapterModel;
34 import mir.module.AbstractModule;
35 import mir.module.ModuleExc;
36 import mir.storage.Database;
37 import mir.util.HTTPRequestParser;
38 import mir.util.URLBuilder;
39 import mir.util.StringRoutines;
40 import mircoders.global.MirGlobal;
41 import mircoders.localizer.MirLocalizerExc;
42 import mircoders.servlet.ServletHelper;
44 import javax.servlet.http.HttpServletRequest;
45 import javax.servlet.http.HttpServletResponse;
46 import java.util.Collections;
47 import java.util.HashMap;
48 import java.util.HashSet;
49 import java.util.Iterator;
50 import java.util.List;
53 import java.io.IOException;
59 public abstract class AdminServletModule extends ServletModule {
60 protected AbstractModule mainModule;
61 protected String definition;
62 private EntityAdapterModel model;
64 protected String listGenerator;
65 protected String editGenerator;
66 protected String deleteConfirmationGenerator;
67 protected int nrEntitiesPerListPage;
69 /** the list of parameters that need to be propagated in the list */
70 private Set propagatedParameters = new HashSet();
72 protected void addPropagatedParameter(String aParameter) {
73 propagatedParameters.add(aParameter);
76 protected AdminServletModule(){
77 addPropagatedParameter("searchfield");
78 addPropagatedParameter("searchtext");
79 addPropagatedParameter("searchispublished");
80 addPropagatedParameter("searchstatus");
81 addPropagatedParameter("searchorder");
85 model = MirGlobal.localizer().dataModel().adapterModel();
87 catch (MirLocalizerExc e) {
88 getLogger().error("Can't create model: " + e.toString());
90 throw new ServletModuleFailure("Can't retrieve model", e);
93 listGenerator = getConfiguration().getString("ServletModule." + getName() + ".ListTemplate");
94 editGenerator = getConfiguration().getString("ServletModule." + getName() + ".EditTemplate");
95 deleteConfirmationGenerator = getConfiguration().getString("ServletModule." + getName() + ".DeleteConfirmationTemplate");
96 nrEntitiesPerListPage =
97 getConfiguration().getInt("ServletModule."+getName()+".ListSize",
98 getConfiguration().getInt("ServletModule.Default.ListSize", 20));
102 protected EntityAdapterModel getModel() {
106 protected void logAdminUsage(HttpServletRequest aRequest, String anObject, String aDescription) {
107 MirGlobal.logAdminUsage(ServletHelper.getUser(aRequest), getName() + ":" + anObject, aDescription);
111 * Function to specify the default ordering for lists. May be overridden.
113 protected String getDefaultListOrdering() {
115 if (mainModule!=null && mainModule.getStorageObject()!=null &&
116 mainModule.getStorageObject().hasField("webdb_create")) {
117 return "webdb_create desc";
125 * Generic list servlet method
128 public void list(HttpServletRequest aRequest, HttpServletResponse aResponse) throws ServletModuleExc {
129 HTTPRequestParser requestParser = new HTTPRequestParser(aRequest);
131 String where = requestParser.getParameter("where");
132 String order = requestParser.getParameterWithDefault("order", getDefaultListOrdering());
133 int offset = requestParser.getIntegerWithDefault("offset", 0);
134 String mainTablePrefix = requestParser.getParameter("mainTablePrefix");
135 String extraTables = requestParser.getParameter("extraTables");
137 returnList(aRequest, aResponse, where, order, offset, Collections.EMPTY_MAP, mainTablePrefix, extraTables);
141 public void returnList(HttpServletRequest aRequest, HttpServletResponse aResponse,
142 String aWhereClause, String anOrderByClause, int anOffset) throws ServletModuleExc {
143 returnList(aRequest, aResponse, aWhereClause, anOrderByClause, anOffset, Collections.EMPTY_MAP);
146 public void returnList(HttpServletRequest aRequest, HttpServletResponse aResponse,
147 String aWhereClause, String anOrderByClause, int anOffset,
148 Map anOverridingRequestParameters) throws ServletModuleExc {
149 returnList(aRequest, aResponse, aWhereClause, anOrderByClause, anOffset, anOverridingRequestParameters, "", null);
151 public void returnList(HttpServletRequest aRequest, HttpServletResponse aResponse,
152 String aWhereClause, String anOrderByClause, int anOffset,
153 Map anOverridingRequestParameters, String aMainTablePrefix, String someExtraTables) throws ServletModuleExc {
154 HTTPRequestParser requestParser = new HTTPRequestParser(aRequest, anOverridingRequestParameters);
155 URLBuilder urlBuilder = new URLBuilder();
158 Map responseData = ServletHelper.makeGenerationData(aRequest, aResponse, getLocales(aRequest));
160 List extraTables = null;
161 if (someExtraTables!=null && someExtraTables.length() > 0) {
162 extraTables = StringRoutines.splitString(someExtraTables, ",");
166 EntityAdapterEngine.retrieveAdapterList(model, definition, aMainTablePrefix, extraTables, aWhereClause, anOrderByClause, nrEntitiesPerListPage, anOffset);
168 responseData.put("nexturl", null);
169 responseData.put("prevurl", null);
170 responseData.put("module", getName());
172 urlBuilder.setValue("module", getName());
173 urlBuilder.setValue("do", "list");
174 urlBuilder.setValue("where", aWhereClause);
175 urlBuilder.setValue("order", anOrderByClause);
176 urlBuilder.setValue("extraTables", someExtraTables);
177 urlBuilder.setValue("mainTablePrefix", aMainTablePrefix);
180 urlBuilder.setValue("offset", anOffset);
181 responseData.put("offset" , Integer.toString(anOffset));
182 responseData.put("thisurl" , urlBuilder.getQuery());
184 propagateFields(requestParser, urlBuilder, responseData);
186 if (list.size()>=nrEntitiesPerListPage) {
187 urlBuilder.setValue("offset", anOffset + nrEntitiesPerListPage);
188 responseData.put("nexturl" , urlBuilder.getQuery());
192 urlBuilder.setValue("offset", Math.max(anOffset - nrEntitiesPerListPage, 0));
193 responseData.put("prevurl" , urlBuilder.getQuery());
196 responseData.put("entities", list);
197 responseData.put("from" , Integer.toString(anOffset+1));
198 responseData.put("count", "?");
199 responseData.put("to", Integer.toString(anOffset+list.size()-1));
201 ServletHelper.generateResponse(aResponse.getWriter(), responseData, listGenerator);
203 catch (Throwable e) {
204 throw new ServletModuleFailure(e);
208 public void editObject(HttpServletRequest aRequest, HttpServletResponse aResponse, String anId) throws ServletModuleExc {
210 editObject(aRequest, aResponse, model.makeEntityAdapter(definition, mainModule.getById(anId)), false, anId);
212 catch (Throwable t) {
213 throw new ServletModuleFailure(t);
217 public void editObject(HttpServletRequest aRequest, HttpServletResponse aResponse, Object anObject, boolean anIsNew, String anId) throws ServletModuleExc {
218 HTTPRequestParser requestParser = new HTTPRequestParser(aRequest);
219 URLBuilder urlBuilder = new URLBuilder();
222 Map responseData = ServletHelper.makeGenerationData(aRequest, aResponse, getLocales(aRequest));
224 responseData.put("module", getName());
225 responseData.put("entity", anObject);
226 responseData.put("new", new Boolean(anIsNew));
229 urlBuilder.setValue("module", getName());
230 urlBuilder.setValue("returnurl", requestParser.getParameter("returnurl"));
232 urlBuilder.setValue("do", "add");
235 urlBuilder.setValue("id", anId);
236 urlBuilder.setValue("do", "edit");
238 responseData.put("returnurl", requestParser.getParameter("returnurl"));
239 responseData.put("thisurl", urlBuilder.getQuery());
241 ServletHelper.generateResponse(aResponse.getWriter(), responseData, editGenerator);
243 catch (Throwable e) {
244 throw new ServletModuleFailure(e);
249 * Generic add servlet method
251 public void add(HttpServletRequest aRequest, HttpServletResponse aResponse)
252 throws ServletModuleExc, ServletModuleUserExc, ServletModuleFailure {
254 Map object = new HashMap();
256 Iterator i = mainModule.getStorageObject().getFieldNames().iterator();
258 while (i.hasNext()) {
259 object.put(i.next(), "");
262 initializeNewObject(object, aRequest, aResponse);
264 editObject(aRequest, aResponse, object, true, null);
267 protected void initializeNewObject(Map aNewObject, HttpServletRequest aRequest, HttpServletResponse aResponse) {
271 * Generic edit servlet method
273 public void edit(HttpServletRequest aRequest, HttpServletResponse aResponse) throws ServletModuleExc, ServletModuleUserExc, ServletModuleFailure {
274 edit(aRequest, aResponse, aRequest.getParameter("id"));
279 public void edit(HttpServletRequest aRequest, HttpServletResponse aResponse, String anIdentifier)
280 throws ServletModuleExc, ServletModuleUserExc, ServletModuleFailure {
282 editObject(aRequest, aResponse, model.makeEntityAdapter(definition, mainModule.getById(anIdentifier)), false, anIdentifier);
284 catch (Throwable e) {
285 throw new ServletModuleFailure(e);
290 * Generic update servlet method
292 public void update(HttpServletRequest aRequest, HttpServletResponse aResponse)
293 throws ServletModuleExc, ServletModuleUserExc, ServletModuleFailure {
295 HTTPRequestParser requestParser = new HTTPRequestParser(aRequest);
297 String id = aRequest.getParameter("id");
298 Map withValues = getIntersectingValues(aRequest, mainModule.getStorageObject());
299 mainModule.set(withValues);
301 logAdminUsage(aRequest, id, "object modified");
303 String returnUrl = requestParser.getParameter("returnurl");
305 if (returnUrl!=null) {
306 ServletHelper.redirect(aResponse, returnUrl);
309 edit(aRequest, aResponse, id);
312 catch (Throwable e) {
313 throw new ServletModuleFailure(e);
318 * Generic insert servlet method
320 public void insert(HttpServletRequest aRequest, HttpServletResponse aResponse)
321 throws ServletModuleExc, ServletModuleUserExc, ServletModuleFailure {
323 HTTPRequestParser requestParser = new HTTPRequestParser(aRequest);
325 Map object = getIntersectingValues(aRequest, mainModule.getStorageObject());
327 String id = processInstertedObject(object, aRequest, aResponse);
329 logAdminUsage(aRequest, id, "object inserted");
331 String returnUrl = requestParser.getParameter("returnurl");
333 if (returnUrl!=null) {
334 ServletHelper.redirect(aResponse, returnUrl);
337 edit(aRequest, aResponse, id);
340 catch (Throwable e) {
341 throw new ServletModuleFailure(e);
348 public String processInstertedObject(Map anObject, HttpServletRequest aRequest, HttpServletResponse aResponse) {
350 return mainModule.add(anObject);
352 catch (ModuleExc t) {
353 throw new ServletModuleFailure(t);
358 * Generic delete confirmation servlet method
360 public void confirmdelete(HttpServletRequest aRequest, HttpServletResponse aResponse) {
362 String idParam = aRequest.getParameter("id");
363 String confirmParam = aRequest.getParameter("confirm");
365 if (confirmParam != null && !"".equals(confirmParam)) {
366 mainModule.deleteById(idParam);
367 logAdminUsage(aRequest, idParam, "object deleted");
368 ServletHelper.redirect(aResponse, aRequest.getParameter("okurl"));
371 ServletHelper.redirect(aResponse, aRequest.getParameter("cancelurl"));
374 catch (Throwable t) {
375 throw new ServletModuleFailure(t);
380 * Generic delete servlet method
382 public void delete(HttpServletRequest aRequest, HttpServletResponse aResponse)
383 throws ServletModuleExc, ServletModuleUserExc, ServletModuleFailure {
384 String idParam = aRequest.getParameter("id");
386 if (idParam == null) {
387 throw new ServletModuleExc("Invalid call to delete: no id supplied");
390 Map responseData = ServletHelper.makeGenerationData(aRequest, aResponse, getLocales(aRequest));
392 responseData.put("module", getName());
393 responseData.put("id", idParam);
394 responseData.put("cancelurl", aRequest.getParameter("cancelurl"));
395 responseData.put("okurl", aRequest.getParameter("okurl"));
398 ServletHelper.generateResponse(aResponse.getWriter(), responseData, deleteConfirmationGenerator);
400 catch (IOException e) {
401 throw new ServletModuleFailure(e);
406 * Gets the fields from a httprequest and matches them with the metadata from
407 * the database object. Returns the keys that match, with their values.
409 * @return Map with the values
411 public Map getIntersectingValues(HttpServletRequest aRequest, Database aDatabase)
412 throws ServletModuleExc, ServletModuleFailure {
414 HTTPRequestParser parser = new HTTPRequestParser(aRequest);
416 List fields = aDatabase.getFieldNames();
418 Map result = new HashMap();
419 for (int i = 0; i < fields.size(); i++) {
420 String aField = (String) fields.get(i);
422 String aValue = parser.getParameter(aField);
423 if (aValue != null) {
424 result.put(aField, aValue);
431 private void propagateFields(HTTPRequestParser aRequest, URLBuilder aUrlBuilder, Map aResponseData) {
432 Iterator i = propagatedParameters.iterator();
433 while (i.hasNext()) {
434 String parameter = (String) i.next();
435 String value = aRequest.getParameter(parameter);
436 aUrlBuilder.setValue(parameter, value);
437 aResponseData.put(parameter, value);