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);
207 * return a page allowing the user to edit an object
211 * @param anId the id of the object that is being edited
212 * @param aTemplate the template to use (or null to use the default template)
213 * @throws ServletModuleExc
215 public void editObject(HttpServletRequest aRequest, HttpServletResponse aResponse, String anId, String aTemplate) throws ServletModuleExc {
217 editObject(aRequest, aResponse, model.makeEntityAdapter(definition, mainModule.getById(anId)), aTemplate, false, anId);
219 catch (Throwable t) {
220 throw new ServletModuleFailure(t);
225 * return a page allowing the user to edit an object
227 public void editObject(HttpServletRequest aRequest, HttpServletResponse aResponse, Object anObject,
228 String aTemplate, boolean anIsNew, String anId) throws ServletModuleExc {
229 HTTPRequestParser requestParser = new HTTPRequestParser(aRequest);
230 URLBuilder urlBuilder = new URLBuilder();
233 Map responseData = ServletHelper.makeGenerationData(aRequest, aResponse, getLocales(aRequest));
235 responseData.put("module", getName());
236 responseData.put("entity", anObject);
237 responseData.put("new", Boolean.valueOf(anIsNew));
240 urlBuilder.setValue("module", getName());
241 urlBuilder.setValue("returnurl", requestParser.getParameter("returnurl"));
243 urlBuilder.setValue("do", "add");
246 urlBuilder.setValue("id", anId);
247 urlBuilder.setValue("do", "edit");
249 responseData.put("returnurl", requestParser.getParameter("returnurl"));
250 responseData.put("thisurl", urlBuilder.getQuery());
252 if (aTemplate == null) {
253 aTemplate = editGenerator;
256 ServletHelper.generateResponse(aResponse.getWriter(), responseData, aTemplate);
258 catch (Throwable e) {
259 throw new ServletModuleFailure(e);
264 * Generic add servlet method
266 public void add(HttpServletRequest aRequest, HttpServletResponse aResponse)
267 throws ServletModuleExc, ServletModuleUserExc, ServletModuleFailure {
269 Map object = new HashMap();
271 Iterator i = mainModule.getStorageObject().getFieldNames().iterator();
272 while (i.hasNext()) {
273 object.put(i.next(), "");
276 initializeNewObject(object, aRequest, aResponse);
278 editObject(aRequest, aResponse, object, null, true, null);
281 protected void initializeNewObject(Map aNewObject, HttpServletRequest aRequest, HttpServletResponse aResponse) {
285 * Generic edit servlet method
287 public void edit(HttpServletRequest aRequest, HttpServletResponse aResponse) throws ServletModuleExc, ServletModuleUserExc, ServletModuleFailure {
288 edit(aRequest, aResponse, aRequest.getParameter("id"));
293 public void edit(HttpServletRequest aRequest, HttpServletResponse aResponse, String anIdentifier)
294 throws ServletModuleExc, ServletModuleUserExc, ServletModuleFailure {
297 editObject(aRequest, aResponse, model.makeEntityAdapter(definition, mainModule.getById(anIdentifier)), null, false, anIdentifier);
299 catch (Throwable e) {
300 throw new ServletModuleFailure(e);
305 * Generic update servlet method
307 public void update(HttpServletRequest aRequest, HttpServletResponse aResponse)
308 throws ServletModuleExc, ServletModuleUserExc, ServletModuleFailure {
310 HTTPRequestParser requestParser = new HTTPRequestParser(aRequest);
312 String id = aRequest.getParameter("id");
313 Map withValues = getIntersectingValues(aRequest, mainModule.getStorageObject());
314 mainModule.set(withValues);
316 logAdminUsage(aRequest, id, "object modified");
318 String returnUrl = requestParser.getParameter("returnurl");
320 if (returnUrl!=null) {
321 ServletHelper.redirect(aResponse, returnUrl);
324 edit(aRequest, aResponse, id);
327 catch (Throwable e) {
328 throw new ServletModuleFailure(e);
333 * Generic insert servlet method
335 public void insert(HttpServletRequest aRequest, HttpServletResponse aResponse)
336 throws ServletModuleExc, ServletModuleUserExc, ServletModuleFailure {
338 HTTPRequestParser requestParser = new HTTPRequestParser(aRequest);
340 Map object = getIntersectingValues(aRequest, mainModule.getStorageObject());
342 String id = processInstertedObject(object, aRequest, aResponse);
344 logAdminUsage(aRequest, id, "object inserted");
346 String returnUrl = requestParser.getParameter("returnurl");
348 if (returnUrl!=null) {
349 ServletHelper.redirect(aResponse, returnUrl);
352 edit(aRequest, aResponse, id);
355 catch (Throwable e) {
356 throw new ServletModuleFailure(e);
363 public String processInstertedObject(Map anObject, HttpServletRequest aRequest, HttpServletResponse aResponse) {
365 return mainModule.add(anObject);
367 catch (ModuleExc t) {
368 throw new ServletModuleFailure(t);
373 * Generic delete confirmation servlet method
375 public void confirmdelete(HttpServletRequest aRequest, HttpServletResponse aResponse) {
377 String idParam = aRequest.getParameter("id");
378 String confirmParam = aRequest.getParameter("confirm");
380 if (confirmParam != null && !"".equals(confirmParam)) {
381 mainModule.deleteById(idParam);
382 logAdminUsage(aRequest, idParam, "object deleted");
383 ServletHelper.redirect(aResponse, aRequest.getParameter("okurl"));
386 ServletHelper.redirect(aResponse, aRequest.getParameter("cancelurl"));
389 catch (Throwable t) {
390 throw new ServletModuleFailure(t);
395 * Generic delete servlet method
397 public void delete(HttpServletRequest aRequest, HttpServletResponse aResponse)
398 throws ServletModuleExc, ServletModuleUserExc, ServletModuleFailure {
399 String idParam = aRequest.getParameter("id");
401 if (idParam == null) {
402 throw new ServletModuleExc("Invalid call to delete: no id supplied");
405 Map responseData = ServletHelper.makeGenerationData(aRequest, aResponse, getLocales(aRequest));
407 responseData.put("module", getName());
408 responseData.put("id", idParam);
409 responseData.put("cancelurl", aRequest.getParameter("cancelurl"));
410 responseData.put("okurl", aRequest.getParameter("okurl"));
413 ServletHelper.generateResponse(aResponse.getWriter(), responseData, deleteConfirmationGenerator);
415 catch (IOException e) {
416 throw new ServletModuleFailure(e);
421 * Gets the fields from a httprequest and matches them with the metadata from
422 * the database object. Returns the keys that match, with their values.
424 * @return Map with the values
426 public Map getIntersectingValues(HttpServletRequest aRequest, Database aDatabase)
427 throws ServletModuleExc, ServletModuleFailure {
429 HTTPRequestParser parser = new HTTPRequestParser(aRequest);
431 List fields = aDatabase.getFieldNames();
433 Map result = new HashMap();
434 for (int i = 0; i < fields.size(); i++) {
435 String aField = (String) fields.get(i);
437 String aValue = parser.getParameter(aField);
438 if (aValue != null) {
439 result.put(aField, aValue);
446 private void propagateFields(HTTPRequestParser aRequest, URLBuilder aUrlBuilder, Map aResponseData) {
447 Iterator i = propagatedParameters.iterator();
448 while (i.hasNext()) {
449 String parameter = (String) i.next();
450 String value = aRequest.getParameter(parameter);
451 aUrlBuilder.setValue(parameter, value);
452 aResponseData.put(parameter, value);