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17
18
19
20 package org.apache.lenya.cms.cocoon.acting;
21
22 import org.apache.avalon.framework.configuration.Configurable;
23 import org.apache.avalon.framework.configuration.Configuration;
24 import org.apache.avalon.framework.configuration.ConfigurationException;
25 import org.apache.avalon.framework.configuration.DefaultConfigurationBuilder;
26 import org.apache.avalon.framework.parameters.ParameterException;
27 import org.apache.avalon.framework.parameters.Parameters;
28
29 import org.apache.cocoon.ProcessingException;
30 import org.apache.cocoon.acting.AbstractComplementaryConfigurableAction;
31 import org.apache.cocoon.environment.ObjectModelHelper;
32 import org.apache.cocoon.environment.Redirector;
33 import org.apache.cocoon.environment.Request;
34 import org.apache.cocoon.environment.Session;
35 import org.apache.cocoon.environment.SourceResolver;
36
37 import org.apache.excalibur.source.Source;
38
39 import org.apache.lenya.cms.authoring.ParentChildCreatorInterface;
40
41 import org.dom4j.Attribute;
42 import org.dom4j.Document;
43 import org.dom4j.DocumentHelper;
44 import org.dom4j.Element;
45 import org.dom4j.XPath;
46
47 import org.dom4j.io.SAXReader;
48
49 import java.io.File  ;
50
51 import java.util.Enumeration ;
52 import java.util.HashMap ;
53 import java.util.List ;
54 import java.util.Map ;
55 import java.util.StringTokenizer ;
56
57 public class ParentChildCreatorAction extends AbstractComplementaryConfigurableAction
58 implements Configurable {
59 private String treeAuthoringPath = null;
60 private String docsPath = null;
61 private String doctypesPath = null;
62
63
70 public void configure(Configuration conf) throws ConfigurationException {
71 super.configure(conf);
72
73 treeAuthoringPath = conf.getChild("tree-authoring").getAttribute("href");
74 docsPath = conf.getChild("docs").getAttribute("href");
75 doctypesPath = conf.getChild("doctypes").getAttribute("href");
76 getLogger().debug("CONFIGURATION:\nAUTHORING PATH OF TREE=" + treeAuthoringPath);
77 }
78
79
92 public Map act(Redirector redirector, SourceResolver resolver, Map objectModel, String src,
93 Parameters parameters) throws Exception {
94 Source input_source = resolver.resolveURI("");
95 String sitemapParentPath = input_source.getURI();
96 sitemapParentPath = sitemapParentPath.substring(5);
98 getLogger().debug(".act(): PARENT PATH OF SITEMAP: " + sitemapParentPath);
99
100 Request request = ObjectModelHelper.getRequest(objectModel);
102
103 if (request == null) {
104 getLogger().error("No request object");
105
106 return null;
107 }
108
109 String parentid = request.getParameter("parentid");
111 if (parentid == null) {
112 getLogger().warn("No parentid parameter defined! It might be necessary to specify a parentid request parameter.");
113 }
114 String childid = request.getParameter("childid");
115 if (childid == null) {
116 getLogger().error("No childid parameter defined! Please specify childid as request parameter.");
117 throw new Exception ("No childname defined!");
118 }
119 String childname = request.getParameter("childname");
120 if (childname == null) {
121 getLogger().error("No childname defined! Please specify childname as request parameter which is being used as label within a sitetree or topic map.");
122 throw new Exception ("No childname defined!");
123 }
124 String childtype = request.getParameter("childtype");
125 if (childtype == null) {
126 getLogger().error("No childtype defined! Please specify childtype as request parameter with value either \"branch\" or \"leaf\".");
127 throw new Exception ("No childname defined!");
128 }
129 short childType;
130
131 if (childtype.equals("branch")) {
132 childType = ParentChildCreatorInterface.BRANCH_NODE;
133 } else if (childtype.equals("leaf")) {
134 childType = ParentChildCreatorInterface.LEAF_NODE;
135 } else {
136 getLogger().error("No such child type: " + childtype);
137 return null;
138 }
139
140 String doctype = request.getParameter("doctype");
141 if (doctype == null) {
142 getLogger().warn("No doctype defined! Please specify doctype as request parameter, which is being used to resolve the creator within doctypes.xconf. Otherwise the DefaultCreator class is being used (see below)!");
143 }
144 String language = request.getParameter("language");
145
146 if (!validate(parentid, childid, childname, childtype, doctype)) {
147 getLogger().error("Exception: Validation of parameters failed");
148
149 return null;
150 }
151
152 Session session = request.getSession(true);
154
155 if (session == null) {
156 getLogger().error("No session object");
157
158 return null;
159 }
160
161 ParentChildCreatorInterface creator = null;
163 String absoluteDoctypesPath = sitemapParentPath + doctypesPath;
164 Document doctypesDoc = new SAXReader().read("file:" + absoluteDoctypesPath +
165 "doctypes.xconf");
166 Attribute creator_src = (Attribute) doctypesDoc.selectSingleNode("/doctypes/doc[@type='" +
167 doctype + "']/creator/@src");
168
169 if (creator_src != null) {
170 getLogger().info(".act(): Creator found for \"" + doctype + "\": " +
171 creator_src.getName() + " " + creator_src.getPath() + " " + creator_src.getValue());
172
173 Class creatorClass = Class.forName(creator_src.getValue());
175 creator = (ParentChildCreatorInterface) creatorClass.newInstance();
176 } else {
177 getLogger().warn("No creator found for \"" + doctype +
178 "\". DefaultParentChildreator will be taken.");
179 creator = new org.apache.lenya.cms.authoring.DefaultCreator();
180 }
181
182 getLogger().debug(".act(): Creator : " + creator.getClass().getName());
183
184 DefaultConfigurationBuilder defaultConfigBuilder = new DefaultConfigurationBuilder();
187 Configuration[] docTypeConfigs = defaultConfigBuilder.buildFromFile(absoluteDoctypesPath +
188 "doctypes.xconf").getChildren();
189
190 Configuration doctypeConf = null;
191
192 for (int i = 0; i < docTypeConfigs.length; i++) {
193 String typeName = docTypeConfigs[i].getAttribute("type");
194
195 if (typeName.equals(doctype)) {
196 doctypeConf = docTypeConfigs[i].getChild("creator", false);
197 }
198 }
199
200 creator.init(doctypeConf);
201
202 String treefilename = sitemapParentPath + treeAuthoringPath;
204 getLogger().debug(".act(): Filename of tree: " + treefilename);
205
206 if (!new File (treefilename).exists()) {
207 getLogger().warn("No sitetree or topic map: " + treefilename);
208 } else {
209 if (!updateTree(childtype, childType, childid, childname, parentid, doctype, creator, treefilename)) return null;
210 }
211
213
214 HashMap allParameters = new HashMap ();
218 String [] names = parameters.getNames();
219
220 for (int i = 0; i < names.length; i++) {
221 String name = names[i];
222 String value = null;
223
224 try {
225 value = parameters.getParameter(name);
226 } catch (ParameterException pe) {
227 value = null;
228 }
229
230 allParameters.put(name, value);
231 }
232
233 Enumeration requestParameters = request.getParameterNames();
234
235 while (requestParameters.hasMoreElements()) {
236 String requestParameterName = (String ) requestParameters.nextElement();
237
238 if (allParameters.containsKey(requestParameterName)) {
239 throw new ProcessingException("Name clash in request parameter " +
241 "and sitemap parameter: " + requestParameterName);
242 }
243
244 allParameters.put(requestParameterName, request.getParameter(requestParameterName));
245 }
246
247 Enumeration sessionAttributeNames = session.getAttributeNames();
248
249 while (sessionAttributeNames.hasMoreElements()) {
250 String sessionAttributeName = (String ) sessionAttributeNames.nextElement();
251
252 if (allParameters.containsKey(sessionAttributeName)) {
253 throw new ProcessingException("Name clash in session attribute " +
255 "and request parameter or sitemap parameter: " + sessionAttributeName);
256 }
257
258 allParameters.put(sessionAttributeName, session.getAttribute(sessionAttributeName));
259 }
260
261 try {
262 creator.create(new File (absoluteDoctypesPath + "samples"),
263 new File (sitemapParentPath + docsPath + parentid), childid, childType, childname, language,
264 allParameters);
265 } catch (Exception e) {
266 getLogger().error("Creator threw exception: " + e);
267 }
268
269 String parent_uri = (String ) session.getAttribute(
271 "org.apache.lenya.cms.cocoon.acting.ParentChildCreatorAction.parent_uri");
272 getLogger().info(".act(): Child added");
273
274 HashMap actionMap = new HashMap ();
275 actionMap.put("parent_uri", parent_uri);
276 session.removeAttribute(
277 "org.apache.lenya.cms.cocoon.acting.ParentChildCreatorAction.parent_uri");
278
279 return actionMap;
280 }
281
282
293 public boolean validate(String parentid, String childid, String childname, String childtype,
294 String doctype) {
295 getLogger().debug(".validate(): parentid=" + parentid + " ; childid=" + childid +
296 " ; childname=" + childname + " ; childtype=" + childtype + " ; doctype=" + doctype);
297
298 if ((childid.indexOf(" ") >= 0) || (childid.length() == 0)) {
299 return false;
300 }
301
302 if (childname.length() == 0) {
303 return false;
304 }
305
306 return true;
307 }
308
309
312 private boolean updateTree(String childtype, short childType, String childid, String childname, String parentid, String doctype, ParentChildCreatorInterface creator, String treefilename) throws Exception {
313 Document doc = new SAXReader().read("file:" + treefilename);
314
315 StringTokenizer st = new StringTokenizer (parentid, "/");
317 String xpath_string = "/tree/branch";
319 while (st.hasMoreTokens()) {
320 xpath_string = xpath_string + "/branch[@relURI='" + st.nextToken() + "']";
321 }
322
323 getLogger().debug("XPATH: " + xpath_string);
324
325 XPath xpathSelector = DocumentHelper.createXPath(xpath_string);
326 List nodes = xpathSelector.selectNodes(doc);
327
328 if (nodes.isEmpty()) {
329 getLogger().error(".act(): No nodes: " + xpath_string);
330 getLogger().error(".act(): No child added!");
331
332 return false;
333 }
334
335 Element parent_element = (Element) nodes.get(0);
336 getLogger().debug("PARENT ELEMENT: " + parent_element.getPath());
337
338 childType = creator.getChildType(childType);
340
341 if (childType == ParentChildCreatorInterface.BRANCH_NODE) {
342 childtype = "branch";
343 } else {
344 childtype = "leaf";
345 }
346
347 String newChildXPath = xpath_string + "/" + childtype;
349 getLogger().debug("CHECK: " + newChildXPath);
350
351 if (doc.selectSingleNode(newChildXPath + "[@relURI='" +
352 creator.generateTreeId(childid, childType) + "']") != null) {
353 getLogger().error("Exception: XPath exists: " + newChildXPath + "[@relURI='" +
354 creator.generateTreeId(childid, childType) + "']");
355 getLogger().error("No child added");
356
357 return false;
358 }
359
360 parent_element.addElement(childtype)
362 .addAttribute("relURI", creator.generateTreeId(childid, childType))
363 .addAttribute("doctype", doctype).addAttribute("menuName",
364 creator.getChildName(childname));
365 getLogger().debug("Tree has been modified: " + doc.asXML());
366
367 java.io.FileWriter fileWriter = new java.io.FileWriter (treefilename);
369 doc.write(fileWriter);
370 fileWriter.close();
371
372 return true;
373 }
374 }
375 |
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