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16 package org.apache.cocoon.components.source.impl;
17
18
19 import java.io.File  ;
20 import java.io.IOException ;
21 import java.net.MalformedURLException ;
22 import java.util.ArrayList ;
23 import java.util.Iterator ;
24 import java.util.List ;
25 import java.util.Map ;
26
27 import org.apache.avalon.framework.configuration.Configurable;
28 import org.apache.avalon.framework.configuration.Configuration;
29 import org.apache.avalon.framework.configuration.ConfigurationException;
30 import org.apache.avalon.framework.logger.AbstractLogEnabled;
31 import org.apache.avalon.framework.service.ServiceException;
32 import org.apache.avalon.framework.service.ServiceManager;
33 import org.apache.avalon.framework.service.Serviceable;
34 import org.apache.avalon.framework.thread.ThreadSafe;
35 import org.apache.excalibur.source.Source;
36 import org.apache.excalibur.source.SourceException;
37 import org.apache.excalibur.source.SourceFactory;
38 import org.apache.excalibur.source.SourceResolver;
39 import org.apache.regexp.RE;
40 import org.apache.regexp.RESyntaxException;
41
42
43
79 public final class QDoxSourceFactory
80 extends AbstractLogEnabled
81 implements SourceFactory, Serviceable, Configurable, ThreadSafe {
82
83 protected final static String INCLUDE_INHERITANCE_ELEMENT = "include-inheritance";
84 protected final static String VALUE_ATTRIBUTE = "value";
85 protected final static String SOURCE_GROUP_ELEMENT = "source-roots";
86 protected final static String GROUP_ATTRIBUTE = "group";
87 protected final static String SOURCE_ROOT_ELEMENT = "source-root";
88 protected final static String URI_ATTRIBUTE = "uri";
89
90 protected ServiceManager manager;
91 protected List sourceRootUris;
92
93
96 protected RE rePackageClass;
97
98
101 protected RE rePackageClassInnerclass;
102
103
104
110 protected static final class SourceRoot {
111 private List packages;
112 private String sourceRootUri;
113
114 protected SourceRoot(String uri) {
115 if (!uri.endsWith(File.separator)) {
116 uri += '/';
117 }
118 sourceRootUri = uri;
119 packages = new ArrayList ();
120 }
121
122 protected void addPackage(String packageName) {
123 packages.add(packageName);
124 }
125
126 protected boolean hasPackage(String packageName) {
127 return packages.contains(packageName);
128 }
129
130 protected String getUri() {
131 return sourceRootUri;
132 }
133 }
134
135
136
139 public Source getSource(String location, Map parameters) throws MalformedURLException , IOException , SourceException {
140 String className = location.substring(location.indexOf(':') + 1);
141 Source javaSource = null;
142 if (className.length() > 0) {
143 try {
144 if(getLogger().isDebugEnabled()) {
145 getLogger().debug("getSource called with className=" + className);
146 }
147 javaSource = getSource(className);
148 } catch (ServiceException se) {
149 throw new SourceException("SourceResolver not found", se);
150 }
151 } else {
152 throw new MalformedURLException ();
153 }
154
155 QDoxSource result = null;
156 if (javaSource != null) {
157 return new QDoxSource(location, javaSource, getLogger(), manager);
158 }
159
160 if(getLogger().isDebugEnabled()) {
161 getLogger().debug("returning source=" + result + " for className=" + className);
162 }
163
164 return result;
165 }
166
167
170 public void service(ServiceManager manager) throws ServiceException {
171 if (getLogger().isDebugEnabled()) {
172 getLogger().debug("Composing the QDoxSourceFactory...");
173 }
174 this.manager = manager;
175
176 try {
177 rePackageClass = new RE("([$\\w.]+)\\.([$\\w]+)");
178 rePackageClassInnerclass = new RE("([$\\w.]+)\\.([$\\w]+)\\.([$\\w]+)");
179 } catch (RESyntaxException e) {
180 getLogger().error("RegExp syntax error!", e);
181 }
182 }
183
184
187 public void configure(Configuration config) throws ConfigurationException {
188 Configuration[] sourceRootGroups = config.getChildren(SOURCE_GROUP_ELEMENT);
189 sourceRootUris = new ArrayList ();
190
191 for (int i=0; i<sourceRootGroups.length; i++) {
192 Configuration[] sourceRootConfigs = sourceRootGroups[i].getChildren(SOURCE_ROOT_ELEMENT);
193
194 for (int j=0; j<sourceRootConfigs.length; j++) {
195 String uri = sourceRootConfigs[j].getAttribute(URI_ATTRIBUTE);
196 sourceRootUris.add(new SourceRoot(uri));
197 }
198 }
199
200 if (sourceRootUris.size() == 0 && getLogger().isErrorEnabled()) {
201 getLogger().error("No source roots configured!");
202 }
203 }
204
205
210 public void release(Source source) {
211 }
213
214
220 private Source getSource(String className) throws ServiceException {
221 String classFileName = className;
222 String packageName;
223
224 if (rePackageClass.match(className)) {
225 packageName = rePackageClass.getParen(1);
226 } else {
227 packageName = "";
228 }
229
230 classFileName = classFileName.replace('.', '/') + ".java";
231 SourceResolver resolver = (SourceResolver) manager.lookup(SourceResolver.ROLE);
232
233 Source source = getSource(classFileName, packageName, resolver);
234 if (source == null && rePackageClassInnerclass.match(className)) {
235
237 packageName = rePackageClassInnerclass.getParen(1);
238 classFileName = className.substring(0, className.lastIndexOf('.')).replace('.', '/') + ".java";
239 source = getSource(classFileName, packageName, resolver);
240 }
241 manager.release(resolver);
242
243 if (source == null && getLogger().isWarnEnabled()) {
244 getLogger().warn("No source found for class '" + className + "'!");
245 }
246
247 return source;
248 }
249
250 private Source getSource(String classFileName, String packageName, SourceResolver resolver) {
251 for (Iterator i = sourceRootUris.iterator(); i.hasNext();) {
253 SourceRoot sourceRoot = (SourceRoot) i.next();
254
255 if (sourceRoot.hasPackage(packageName)) {
256 String uri = sourceRoot.getUri() + classFileName;
257 Source source = getSource(uri, resolver);
258 if (source != null) {
259 return source;
260 }
261 }
262 }
263
264 for (Iterator i = sourceRootUris.iterator(); i.hasNext();) {
266 SourceRoot sourceRoot = (SourceRoot) i.next();
267 String uri = sourceRoot.getUri() + classFileName;
268
269 Source source = getSource(uri, resolver);
270 if (source != null) {
271 sourceRoot.addPackage(packageName);
272 return source;
273 }
274 }
275 return null;
276 }
277
278
285 private Source getSource(String uri, SourceResolver resolver) {
286 if (getLogger().isDebugEnabled()) {
287 getLogger().debug("Testing uri <" + uri + ">...");
288 }
289 try {
290 Source source = resolver.resolveURI(uri);
291
292 if (source != null && source.getInputStream() != null) {
293 return source;
294 } else {
295 if (getLogger().isDebugEnabled()) {
296 getLogger().debug("uri <" + uri + "> is invalid.");
297 }
298 }
299 } catch (Exception e) {
300 if (getLogger().isDebugEnabled()) {
301 getLogger().debug("uri <" + uri + "> is invalid: " + e.getClass().getName() + " says " + e.getMessage());
302 }
303 }
304 return null;
305 }
306 }
307 |
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