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16 package org.apache.cocoon.transformation;
17
18 import java.io.IOException  ;
19 import java.io.Serializable ;
20 import java.util.ArrayList ;
21 import java.util.Iterator ;
22 import java.util.List ;
23 import java.util.Map ;
24
25 import org.apache.avalon.framework.activity.Disposable;
26 import org.apache.avalon.framework.configuration.Configurable;
27 import org.apache.avalon.framework.configuration.Configuration;
28 import org.apache.avalon.framework.configuration.ConfigurationException;
29 import org.apache.avalon.framework.parameters.Parameters;
30 import org.apache.avalon.framework.service.ServiceException;
31 import org.apache.avalon.framework.service.ServiceManager;
32 import org.apache.avalon.framework.service.Serviceable;
33 import org.apache.cocoon.ProcessingException;
34 import org.apache.cocoon.caching.CacheableProcessingComponent;
35 import org.apache.cocoon.components.validation.ValidationHandler;
36 import org.apache.cocoon.components.validation.Validator;
37 import org.apache.cocoon.environment.SourceResolver;
38 import org.apache.cocoon.xml.XMLConsumer;
39 import org.apache.excalibur.source.Source;
40 import org.apache.excalibur.source.SourceValidity;
41 import org.xml.sax.ContentHandler ;
42 import org.xml.sax.ErrorHandler ;
43 import org.xml.sax.SAXException ;
44 import org.xml.sax.SAXParseException ;
45 import org.xml.sax.helpers.AttributesImpl ;
46
47
86 public class ValidationReportTransformer extends AbstractTransformer
87 implements Configurable, Serviceable, Disposable, CacheableProcessingComponent {
88
89
90 private ServiceManager serviceManager = null;
91
92 private Validator validator = null;
93
94 private String grammar = null;
95
96
97 private Report report = null;
98
99 private ValidationHandler handler = null;
100
101 private XMLConsumer consumer = null;
102
103 private String key = null;
104
105
108 public ValidationReportTransformer() {
109 super();
110 }
111
112
119 public void service(ServiceManager manager)
120 throws ServiceException {
121 this.serviceManager = manager;
122 this.validator = (Validator) manager.lookup(Validator.ROLE);
123 }
124
125
136 public void configure(Configuration configuration)
137 throws ConfigurationException {
138 this.grammar = configuration.getChild("grammar").getValue(null);
139 }
140
141
145 public void dispose() {
146 this.serviceManager.release(this.validator);
147 }
148
149
158 public void setup(SourceResolver resolver, Map objectModel, String source,
159 Parameters parameters)
160 throws ProcessingException, SAXException , IOException {
161 Source s = null;
162 try {
163 Report r = new Report();
164 String g = parameters.getParameter("grammar", this.grammar);
165 s = resolver.resolveURI(source);
166 if (g == null) {
167 this.handler = this.validator.getValidationHandler(s, r);
168 } else{
169 this.handler = this.validator.getValidationHandler(s, g, r);
170 }
171 this.setContentHandler(this.handler);
172 this.setLexicalHandler(this.handler);
173 this.report = r;
174 } finally {
175 if (source != null) resolver.release(s);
176 }
177 }
178
179
185 public void setConsumer(XMLConsumer consumer) {
186 this.consumer = consumer;
187 }
188
189
196 public void endDocument()
197 throws SAXException {
198 super.endDocument();
199 this.report.generateReport(this.consumer);
200 }
201
202
208 public Serializable getKey() {
209 return this.key;
210 }
211
212
218 public SourceValidity getValidity() {
219 return this.handler.getValidity();
220 }
221
222
225 public void recycle() {
226 this.consumer = null;
227 this.handler = null;
228 this.report = null;
229 this.key = null;
230 super.recycle();
231 }
232
233
236 private static final class Report implements ErrorHandler {
237
238 private static final String NS = "http://apache.org/cocoon/validation/1.0";
239 private final List entries = new ArrayList ();
240
241 public void warning(SAXParseException exception)
242 throws SAXException {
243 this.entries.add(new ReportEntry("warning", exception));
244 }
245
246 public void error(SAXParseException exception)
247 throws SAXException {
248 this.entries.add(new ReportEntry("error", exception));
249 }
250
251 public void fatalError(SAXParseException exception)
252 throws SAXException {
253 this.entries.add(new ReportEntry("fatal", exception));
254 }
255
256 private void generateReport(ContentHandler handler)
257 throws SAXException {
258
259 handler.startDocument();
260 handler.startPrefixMapping("", NS);
261 AttributesImpl attributes = new AttributesImpl ();
262 handler.startElement(NS, "report", "report", attributes);
263
264
265 Iterator iterator = this.entries.iterator();
266 while(iterator.hasNext()) {
267 ReportEntry entry = (ReportEntry) iterator.next();
268 attributes.clear();
269
270 if (entry.exception.getPublicId() != null) {
271 if (! "".equals(entry.exception.getPublicId())) {
272 attributes.addAttribute("", "public", "public", "CDATA",
273 entry.exception.getPublicId());
274 }
275 }
276
277 if (entry.exception.getSystemId() != null) {
278 if (! "".equals(entry.exception.getSystemId())) {
279 attributes.addAttribute("", "system", "system", "CDATA",
280 entry.exception.getSystemId());
281 }
282 }
283
284 if (entry.exception.getLineNumber() >= 0) {
285 String l = Integer.toString(entry.exception.getLineNumber());
286 attributes.addAttribute("", "line", "line", "CDATA", l);
287 }
288
289 if (entry.exception.getColumnNumber() >= 0) {
290 String c = Integer.toString(entry.exception.getColumnNumber());
291 attributes.addAttribute("", "column", "column", "CDATA", c);
292 }
293
294 String level = entry.level;
295 handler.startElement(NS, level, level, attributes);
296 char message[] = entry.exception.getMessage().toCharArray();
297 handler.characters(message, 0, message.length);
298 handler.endElement(NS, level, level);
299 }
300
301
302 handler.endElement(NS, "report", "report");
303 handler.endPrefixMapping("");
304 handler.endDocument();
305 }
306 }
307
308 private static final class ReportEntry {
309
310 private final String level;
311 private final SAXParseException exception;
312
313 private ReportEntry(String level, SAXParseException exception) {
314 this.level = level;
315 this.exception = exception;
316 }
317 }
318 }
319 |
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