2 * Copyright (C) 2001-2006 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 * and distribute linked combinations including the two. You must obey the
23 * GNU General Public License in all respects for all of the code used other than
24 * the above mentioned libraries. If you modify this file, you may extend this
25 * exception to your version of the file, but you are not obligated to do so.
26 * If you do not wish to do so, delete this exception statement from your version.
30 import mir.entity.adapter.EntityAdapterEngine;
31 import mir.entity.adapter.EntityAdapterModel;
32 import mir.module.AbstractModule;
33 import mir.module.ModuleExc;
34 import mir.storage.Database;
35 import mir.util.HTTPRequestParser;
36 import mir.util.URLBuilder;
37 import mir.util.StringRoutines;
38 import mircoders.global.MirGlobal;
39 import mircoders.localizer.MirLocalizerExc;
40 import mircoders.servlet.ServletHelper;
42 import javax.servlet.http.HttpServletRequest;
43 import javax.servlet.http.HttpServletResponse;
44 import java.util.Collections;
45 import java.util.HashMap;
46 import java.util.HashSet;
47 import java.util.Iterator;
48 import java.util.List;
51 import java.io.IOException;
57 public abstract class AdminServletModule extends ServletModule {
58 protected AbstractModule mainModule;
59 protected String definition;
60 private EntityAdapterModel model;
62 protected String listGenerator;
63 protected String editGenerator;
64 protected String deleteConfirmationGenerator;
65 protected int nrEntitiesPerListPage;
67 /** the list of parameters that need to be propagated in the list */
68 private Set propagatedParameters = new HashSet();
70 protected void addPropagatedParameter(String aParameter) {
71 propagatedParameters.add(aParameter);
74 protected AdminServletModule(){
75 addPropagatedParameter("searchfield");
76 addPropagatedParameter("searchtext");
77 addPropagatedParameter("searchispublished");
78 addPropagatedParameter("searchstatus");
79 addPropagatedParameter("searchorder");
83 model = MirGlobal.localizer().dataModel().adapterModel();
85 catch (MirLocalizerExc e) {
86 getLogger().error("Can't create model: " + e.toString());
88 throw new ServletModuleFailure("Can't retrieve model", e);
91 listGenerator = getConfiguration().getString("ServletModule." + getName() + ".ListTemplate");
92 editGenerator = getConfiguration().getString("ServletModule." + getName() + ".EditTemplate");
93 deleteConfirmationGenerator = getConfiguration().getString("ServletModule." + getName() + ".DeleteConfirmationTemplate");
94 nrEntitiesPerListPage =
95 getConfiguration().getInt("ServletModule."+getName()+".ListSize",
96 getConfiguration().getInt("ServletModule.Default.ListSize", 20));
100 protected EntityAdapterModel getModel() {
104 protected void logAdminUsage(HttpServletRequest aRequest, String anObject, String aDescription) {
105 MirGlobal.logAdminUsage(ServletHelper.getUser(aRequest), getName() + ":" + anObject, aDescription);
109 * Function to specify the default ordering for lists. May be overridden.
111 protected String getDefaultListOrdering() {
113 if (mainModule!=null && mainModule.getStorageObject()!=null &&
114 mainModule.getStorageObject().hasField("webdb_create")) {
115 return "webdb_create desc";
123 * Generic list servlet method
126 public void list(HttpServletRequest aRequest, HttpServletResponse aResponse) throws ServletModuleExc {
127 HTTPRequestParser requestParser = new HTTPRequestParser(aRequest);
129 String where = requestParser.getParameter("where");
130 String order = requestParser.getParameterWithDefault("order", getDefaultListOrdering());
131 int offset = requestParser.getIntegerWithDefault("offset", 0);
132 String mainTablePrefix = requestParser.getParameter("mainTablePrefix");
133 String extraTables = requestParser.getParameter("extraTables");
135 returnList(aRequest, aResponse, where, order, offset, Collections.EMPTY_MAP, mainTablePrefix, extraTables);
139 public void returnList(HttpServletRequest aRequest, HttpServletResponse aResponse,
140 String aWhereClause, String anOrderByClause, int anOffset) throws ServletModuleExc {
141 returnList(aRequest, aResponse, aWhereClause, anOrderByClause, anOffset, Collections.EMPTY_MAP);
144 public void returnList(HttpServletRequest aRequest, HttpServletResponse aResponse,
145 String aWhereClause, String anOrderByClause, int anOffset,
146 Map anOverridingRequestParameters) throws ServletModuleExc {
147 returnList(aRequest, aResponse, aWhereClause, anOrderByClause, anOffset, anOverridingRequestParameters, "", null);
149 public void returnList(HttpServletRequest aRequest, HttpServletResponse aResponse,
150 String aWhereClause, String anOrderByClause, int anOffset,
151 Map anOverridingRequestParameters, String aMainTablePrefix, String someExtraTables) throws ServletModuleExc {
152 HTTPRequestParser requestParser = new HTTPRequestParser(aRequest, anOverridingRequestParameters);
153 URLBuilder urlBuilder = new URLBuilder();
156 Map responseData = ServletHelper.makeGenerationData(aRequest, aResponse, getLocales(aRequest));
158 List extraTables = null;
159 if (someExtraTables!=null && someExtraTables.length() > 0) {
160 extraTables = StringRoutines.splitString(someExtraTables, ",");
164 EntityAdapterEngine.retrieveAdapterList(model, definition, aMainTablePrefix, extraTables, aWhereClause, anOrderByClause, nrEntitiesPerListPage, anOffset);
166 responseData.put("nexturl", null);
167 responseData.put("prevurl", null);
168 responseData.put("module", getName());
170 urlBuilder.setValue("module", getName());
171 urlBuilder.setValue("do", "list");
172 urlBuilder.setValue("where", aWhereClause);
173 urlBuilder.setValue("order", anOrderByClause);
174 urlBuilder.setValue("extraTables", someExtraTables);
175 urlBuilder.setValue("mainTablePrefix", aMainTablePrefix);
178 urlBuilder.setValue("offset", anOffset);
179 responseData.put("offset" , Integer.toString(anOffset));
180 responseData.put("thisurl" , urlBuilder.getQuery());
182 propagateFields(requestParser, urlBuilder, responseData);
184 if (list.size()>=nrEntitiesPerListPage) {
185 urlBuilder.setValue("offset", anOffset + nrEntitiesPerListPage);
186 responseData.put("nexturl" , urlBuilder.getQuery());
190 urlBuilder.setValue("offset", Math.max(anOffset - nrEntitiesPerListPage, 0));
191 responseData.put("prevurl" , urlBuilder.getQuery());
194 responseData.put("entities", list);
195 responseData.put("from" , Integer.toString(anOffset+1));
196 responseData.put("count", "?");
197 responseData.put("to", Integer.toString(anOffset+list.size()-1));
199 ServletHelper.generateResponse(aResponse.getWriter(), responseData, listGenerator);
201 catch (Throwable e) {
202 throw new ServletModuleFailure(e);
206 public void editObject(HttpServletRequest aRequest, HttpServletResponse aResponse, String anId) throws ServletModuleExc {
208 editObject(aRequest, aResponse, model.makeEntityAdapter(definition, mainModule.getById(anId)), false, anId);
210 catch (Throwable t) {
211 throw new ServletModuleFailure(t);
215 public void editObject(HttpServletRequest aRequest, HttpServletResponse aResponse, Object anObject, boolean anIsNew, String anId) throws ServletModuleExc {
216 HTTPRequestParser requestParser = new HTTPRequestParser(aRequest);
217 URLBuilder urlBuilder = new URLBuilder();
220 Map responseData = ServletHelper.makeGenerationData(aRequest, aResponse, getLocales(aRequest));
222 responseData.put("module", getName());
223 responseData.put("entity", anObject);
224 responseData.put("new", new Boolean(anIsNew));
227 urlBuilder.setValue("module", getName());
228 urlBuilder.setValue("returnurl", requestParser.getParameter("returnurl"));
230 urlBuilder.setValue("do", "add");
233 urlBuilder.setValue("id", anId);
234 urlBuilder.setValue("do", "edit");
236 responseData.put("returnurl", requestParser.getParameter("returnurl"));
237 responseData.put("thisurl", urlBuilder.getQuery());
239 ServletHelper.generateResponse(aResponse.getWriter(), responseData, editGenerator);
241 catch (Throwable e) {
242 throw new ServletModuleFailure(e);
247 * Generic add servlet method
249 public void add(HttpServletRequest aRequest, HttpServletResponse aResponse)
250 throws ServletModuleExc, ServletModuleUserExc, ServletModuleFailure {
252 Map object = new HashMap();
254 Iterator i = mainModule.getStorageObject().getFieldNames().iterator();
256 while (i.hasNext()) {
257 object.put(i.next(), "");
260 initializeNewObject(object, aRequest, aResponse);
262 editObject(aRequest, aResponse, object, true, null);
265 protected void initializeNewObject(Map aNewObject, HttpServletRequest aRequest, HttpServletResponse aResponse) {
269 * Generic edit servlet method
271 public void edit(HttpServletRequest aRequest, HttpServletResponse aResponse) throws ServletModuleExc, ServletModuleUserExc, ServletModuleFailure {
272 edit(aRequest, aResponse, aRequest.getParameter("id"));
277 public void edit(HttpServletRequest aRequest, HttpServletResponse aResponse, String anIdentifier)
278 throws ServletModuleExc, ServletModuleUserExc, ServletModuleFailure {
280 editObject(aRequest, aResponse, model.makeEntityAdapter(definition, mainModule.getById(anIdentifier)), false, anIdentifier);
282 catch (Throwable e) {
283 throw new ServletModuleFailure(e);
288 * Generic update servlet method
290 public void update(HttpServletRequest aRequest, HttpServletResponse aResponse)
291 throws ServletModuleExc, ServletModuleUserExc, ServletModuleFailure {
293 HTTPRequestParser requestParser = new HTTPRequestParser(aRequest);
295 String id = aRequest.getParameter("id");
296 Map withValues = getIntersectingValues(aRequest, mainModule.getStorageObject());
297 mainModule.set(withValues);
299 logAdminUsage(aRequest, id, "object modified");
301 String returnUrl = requestParser.getParameter("returnurl");
303 if (returnUrl!=null) {
304 ServletHelper.redirect(aResponse, returnUrl);
307 edit(aRequest, aResponse, id);
310 catch (Throwable e) {
311 throw new ServletModuleFailure(e);
316 * Generic insert servlet method
318 public void insert(HttpServletRequest aRequest, HttpServletResponse aResponse)
319 throws ServletModuleExc, ServletModuleUserExc, ServletModuleFailure {
321 HTTPRequestParser requestParser = new HTTPRequestParser(aRequest);
323 Map object = getIntersectingValues(aRequest, mainModule.getStorageObject());
325 String id = processInstertedObject(object, aRequest, aResponse);
327 logAdminUsage(aRequest, id, "object inserted");
329 String returnUrl = requestParser.getParameter("returnurl");
331 if (returnUrl!=null) {
332 ServletHelper.redirect(aResponse, returnUrl);
335 edit(aRequest, aResponse, id);
338 catch (Throwable e) {
339 throw new ServletModuleFailure(e);
346 public String processInstertedObject(Map anObject, HttpServletRequest aRequest, HttpServletResponse aResponse) {
348 return mainModule.add(anObject);
350 catch (ModuleExc t) {
351 throw new ServletModuleFailure(t);
356 * Generic delete confirmation servlet method
358 public void confirmdelete(HttpServletRequest aRequest, HttpServletResponse aResponse) {
360 String idParam = aRequest.getParameter("id");
361 String confirmParam = aRequest.getParameter("confirm");
363 if (confirmParam != null && !"".equals(confirmParam)) {
364 mainModule.deleteById(idParam);
365 logAdminUsage(aRequest, idParam, "object deleted");
366 ServletHelper.redirect(aResponse, aRequest.getParameter("okurl"));
369 ServletHelper.redirect(aResponse, aRequest.getParameter("cancelurl"));
372 catch (Throwable t) {
373 throw new ServletModuleFailure(t);
378 * Generic delete servlet method
380 public void delete(HttpServletRequest aRequest, HttpServletResponse aResponse)
381 throws ServletModuleExc, ServletModuleUserExc, ServletModuleFailure {
382 String idParam = aRequest.getParameter("id");
384 if (idParam == null) {
385 throw new ServletModuleExc("Invalid call to delete: no id supplied");
388 Map responseData = ServletHelper.makeGenerationData(aRequest, aResponse, getLocales(aRequest));
390 responseData.put("module", getName());
391 responseData.put("id", idParam);
392 responseData.put("cancelurl", aRequest.getParameter("cancelurl"));
393 responseData.put("okurl", aRequest.getParameter("okurl"));
396 ServletHelper.generateResponse(aResponse.getWriter(), responseData, deleteConfirmationGenerator);
398 catch (IOException e) {
399 throw new ServletModuleFailure(e);
404 * Gets the fields from a httprequest and matches them with the metadata from
405 * the database object. Returns the keys that match, with their values.
407 * @return Map with the values
409 public Map getIntersectingValues(HttpServletRequest aRequest, Database aDatabase)
410 throws ServletModuleExc, ServletModuleFailure {
412 HTTPRequestParser parser = new HTTPRequestParser(aRequest);
414 List fields = aDatabase.getFieldNames();
416 Map result = new HashMap();
417 for (int i = 0; i < fields.size(); i++) {
418 String aField = (String) fields.get(i);
420 String aValue = parser.getParameter(aField);
421 if (aValue != null) {
422 result.put(aField, aValue);
429 private void propagateFields(HTTPRequestParser aRequest, URLBuilder aUrlBuilder, Map aResponseData) {
430 Iterator i = propagatedParameters.iterator();
431 while (i.hasNext()) {
432 String parameter = (String) i.next();
433 String value = aRequest.getParameter(parameter);
434 aUrlBuilder.setValue(parameter, value);
435 aResponseData.put(parameter, value);