|
1
17 package org.alfresco.jcr.exporter;
18
19 import java.io.IOException  ;
20 import java.io.InputStream ;
21 import java.util.ArrayList ;
22 import java.util.Collection ;
23
24 import javax.jcr.PropertyType;
25 import javax.jcr.RepositoryException;
26 import javax.jcr.Value;
27
28 import org.alfresco.jcr.dictionary.JCRNamespace;
29 import org.alfresco.jcr.dictionary.PropertyDefinitionImpl;
30 import org.alfresco.jcr.item.NodeImpl;
31 import org.alfresco.jcr.item.PropertyImpl;
32 import org.alfresco.jcr.item.property.JCRMixinTypesProperty;
33 import org.alfresco.jcr.item.property.JCRPrimaryTypeProperty;
34 import org.alfresco.jcr.item.property.JCRUUIDProperty;
35 import org.alfresco.jcr.session.SessionImpl;
36 import org.alfresco.service.cmr.dictionary.DictionaryService;
37 import org.alfresco.service.cmr.dictionary.PropertyDefinition;
38 import org.alfresco.service.cmr.repository.ContentData;
39 import org.alfresco.service.cmr.repository.NodeRef;
40 import org.alfresco.service.cmr.repository.NodeService;
41 import org.alfresco.service.cmr.repository.Path;
42 import org.alfresco.service.cmr.security.AccessPermission;
43 import org.alfresco.service.cmr.view.Exporter;
44 import org.alfresco.service.cmr.view.ExporterContext;
45 import org.alfresco.service.cmr.view.ExporterException;
46 import org.alfresco.service.namespace.QName;
47 import org.alfresco.util.Base64;
48 import org.xml.sax.ContentHandler ;
49 import org.xml.sax.SAXException ;
50 import org.xml.sax.helpers.AttributesImpl ;
51
52
53
58 public class JCRSystemXMLExporter implements Exporter
59 {
60 public final static String NODE_LOCALNAME = "node";
61 public final static String NAME_LOCALNAME = "name";
62 public final static String PROPERTY_LOCALNAME = "property";
63 public final static String TYPE_LOCALNAME = "type";
64 public final static String VALUE_LOCALNAME = "value";
65
66 public final static QName NODE_QNAME = QName.createQName(JCRNamespace.SV_URI, NODE_LOCALNAME);
67 public final static QName NAME_QNAME = QName.createQName(JCRNamespace.SV_URI, NAME_LOCALNAME);
68 public final static QName PROPERTY_QNAME = QName.createQName(JCRNamespace.SV_URI, PROPERTY_LOCALNAME);
69 public final static QName TYPE_QNAME = QName.createQName(JCRNamespace.SV_URI, TYPE_LOCALNAME);
70 public final static QName VALUE_QNAME = QName.createQName(JCRNamespace.SV_URI, VALUE_LOCALNAME);
71
72 private SessionImpl session;
73 private ContentHandler contentHandler;
74
75 private final static AttributesImpl EMPTY_ATTRIBUTES = new AttributesImpl ();
76
77
78
85 public JCRSystemXMLExporter(SessionImpl session, ContentHandler contentHandler)
86 {
87 this.session = session;
88 this.contentHandler = contentHandler;
89 }
90
91
92
95 public void start(ExporterContext exportNodeRef)
96 {
97 try
98 {
99 contentHandler.startDocument();
100 }
101 catch (SAXException e)
102 {
103 throw new ExporterException("Failed to process export start event", e);
104 }
105 }
106
107
110 public void startNamespace(String prefix, String uri)
111 {
112 try
113 {
114 contentHandler.startPrefixMapping(prefix, uri);
115 }
116 catch (SAXException e)
117 {
118 throw new ExporterException("Failed to process start namespace event - prefix " + prefix + " uri " + uri, e);
119 }
120 }
121
122
125 public void endNamespace(String prefix)
126 {
127 try
128 {
129 contentHandler.endPrefixMapping(prefix);
130 }
131 catch (SAXException e)
132 {
133 throw new ExporterException("Failed to process end namespace event - prefix " + prefix, e);
134 }
135 }
136
137
140 public void startNode(NodeRef nodeRef)
141 {
142 try
143 {
144 String childName;
146 NodeService nodeService = session.getRepositoryImpl().getServiceRegistry().getNodeService();
147 NodeRef rootNode = nodeService.getRootNode(nodeRef.getStoreRef());
148 if (rootNode.equals(nodeRef))
149 {
150 childName = "jcr:root";
151 }
152 else
153 {
154 Path path = nodeService.getPath(nodeRef);
155 childName = path.last().getElementString();
156 }
157 QName childQName = QName.createQName(childName);
158
159 AttributesImpl attrs = new AttributesImpl ();
161 attrs.addAttribute(NAME_QNAME.getNamespaceURI(), NAME_LOCALNAME, toPrefixString(NAME_QNAME), null, toPrefixString(childQName));
162
163 contentHandler.startElement(NODE_QNAME.getNamespaceURI(), NODE_LOCALNAME, toPrefixString(NODE_QNAME), attrs);
165
166 NodeImpl nodeImpl = new NodeImpl(session, nodeRef);
170
171 PropertyImpl primaryType = new JCRPrimaryTypeProperty(nodeImpl);
173 startProperty(nodeRef, JCRPrimaryTypeProperty.PROPERTY_NAME);
174 value(nodeRef, JCRPrimaryTypeProperty.PROPERTY_NAME, primaryType.getValue().getString());
175 endProperty(nodeRef, JCRPrimaryTypeProperty.PROPERTY_NAME);
176
177 PropertyImpl mixinTypes = new JCRMixinTypesProperty(nodeImpl);
179 startProperty(nodeRef, JCRMixinTypesProperty.PROPERTY_NAME);
180 Collection <String > mixins = new ArrayList <String >();
181 for (Value value : mixinTypes.getValues())
182 {
183 mixins.add(value.getString());
184 }
185 value(nodeRef, JCRMixinTypesProperty.PROPERTY_NAME, mixins);
186 endProperty(nodeRef, JCRMixinTypesProperty.PROPERTY_NAME);
187
188 startProperty(nodeRef, JCRUUIDProperty.PROPERTY_NAME);
190 value(nodeRef, JCRUUIDProperty.PROPERTY_NAME, nodeRef.getId());
191 endProperty(nodeRef, JCRUUIDProperty.PROPERTY_NAME);
192 }
193 catch (SAXException e)
194 {
195 throw new ExporterException("Failed to process start node event - node ref " + nodeRef.toString(), e);
196 }
197 catch (RepositoryException e)
198 {
199 throw new ExporterException("Failed to process start node event - node ref " + nodeRef.toString(), e);
200 }
201 }
202
203
206 public void endNode(NodeRef nodeRef)
207 {
208 try
209 {
210 contentHandler.endElement(NODE_QNAME.getNamespaceURI(), NODE_LOCALNAME, toPrefixString(NODE_QNAME));
211 }
212 catch (SAXException e)
213 {
214 throw new ExporterException("Failed to process end node event - node ref " + nodeRef.toString(), e);
215 }
216 }
217
218
221 public void startAspects(NodeRef nodeRef)
222 {
223 }
224
225
228 public void endAspects(NodeRef nodeRef)
229 {
230 }
231
232
235 public void startAspect(NodeRef nodeRef, QName aspect)
236 {
237 }
238
239
242 public void endAspect(NodeRef nodeRef, QName aspect)
243 {
244 }
245
246
249 public void startACL(NodeRef nodeRef)
250 {
251 }
252
253
256 public void permission(NodeRef nodeRef, AccessPermission permission)
257 {
258 }
259
260
263 public void endACL(NodeRef nodeRef)
264 {
265 }
266
267
270 public void startProperties(NodeRef nodeRef)
271 {
272 }
273
274
277 public void endProperties(NodeRef nodeRef)
278 {
279 }
280
281
284 public void startProperty(NodeRef nodeRef, QName property)
285 {
286 try
287 {
288 DictionaryService dictionaryService = session.getRepositoryImpl().getServiceRegistry().getDictionaryService();
290 PropertyDefinition propDef = dictionaryService.getProperty(property);
291 PropertyDefinitionImpl propDefImpl = new PropertyDefinitionImpl(session.getTypeManager(), propDef);
292 String datatype = PropertyType.nameFromValue(propDefImpl.getRequiredType());
293 AttributesImpl attrs = new AttributesImpl ();
294 attrs.addAttribute(NAME_QNAME.getNamespaceURI(), NAME_LOCALNAME, toPrefixString(NAME_QNAME), null, toPrefixString(property));
295 attrs.addAttribute(TYPE_QNAME.getNamespaceURI(), TYPE_LOCALNAME, toPrefixString(TYPE_QNAME), null, datatype);
296
297 contentHandler.startElement(PROPERTY_QNAME.getNamespaceURI(), PROPERTY_LOCALNAME, toPrefixString(PROPERTY_QNAME), attrs);
299 }
300 catch (SAXException e)
301 {
302 throw new ExporterException("Failed to process start property event - nodeRef " + nodeRef + "; property " + toPrefixString(property), e);
303 }
304 }
305
306
309 public void endProperty(NodeRef nodeRef, QName property)
310 {
311 try
312 {
313 contentHandler.endElement(PROPERTY_QNAME.getNamespaceURI(), PROPERTY_LOCALNAME, toPrefixString(PROPERTY_QNAME));
315 }
316 catch (SAXException e)
317 {
318 throw new ExporterException("Failed to process end property event - nodeRef " + nodeRef + "; property " + toPrefixString(property), e);
319 }
320 }
321
322
325 public void value(NodeRef nodeRef, QName property, Object value)
326 {
327 try
328 {
329 contentHandler.startElement(VALUE_QNAME.getNamespaceURI(), VALUE_LOCALNAME, toPrefixString(VALUE_QNAME), EMPTY_ATTRIBUTES);
331 String strValue = session.getTypeConverter().convert(String .class, value);
332 contentHandler.characters(strValue.toCharArray(), 0, strValue.length());
333 contentHandler.endElement(VALUE_QNAME.getNamespaceURI(), VALUE_LOCALNAME, toPrefixString(VALUE_QNAME));
334 }
335 catch (RepositoryException e)
336 {
337 throw new ExporterException("Failed to process value event - nodeRef " + nodeRef + "; property " + toPrefixString(property) + "; value " + value, e);
338 }
339 catch (SAXException e)
340 {
341 throw new ExporterException("Failed to process value event - nodeRef " + nodeRef + "; property " + toPrefixString(property) + "; value " + value, e);
342 }
343 }
344
345
348 public void value(NodeRef nodeRef, QName property, Collection values)
349 {
350 try
351 {
352 Collection <String > strValues = session.getTypeConverter().getConverter().convert(String .class, values);
354
355 for (String strValue : strValues)
356 {
357 contentHandler.startElement(VALUE_QNAME.getNamespaceURI(), VALUE_LOCALNAME, toPrefixString(VALUE_QNAME), EMPTY_ATTRIBUTES);
359 contentHandler.characters(strValue.toCharArray(), 0, strValue.length());
360 contentHandler.endElement(VALUE_QNAME.getNamespaceURI(), VALUE_LOCALNAME, toPrefixString(VALUE_QNAME));
361 }
362 }
363 catch (SAXException e)
364 {
365 throw new ExporterException("Failed to process value event - nodeRef " + nodeRef + "; property " + toPrefixString(property) + "; value " + values, e);
366 }
367 }
368
369
372 public void content(NodeRef nodeRef, QName property, InputStream content, ContentData contentData)
373 {
374 try
375 {
376 contentHandler.startElement(VALUE_QNAME.getNamespaceURI(), VALUE_LOCALNAME, toPrefixString(VALUE_QNAME), EMPTY_ATTRIBUTES);
377
378 if (content != null)
379 {
380 InputStream base64content = new Base64.InputStream(content, Base64.ENCODE | Base64.DONT_BREAK_LINES);
382 byte[] buffer = new byte[9 * 1024];
383 int read;
384 while ((read = base64content.read(buffer, 0, buffer.length)) > 0)
385 {
386 String characters = new String (buffer, 0, read);
387 contentHandler.characters(characters.toCharArray(), 0, characters.length());
388 }
389 }
390
391 contentHandler.endElement(VALUE_QNAME.getNamespaceURI(), VALUE_LOCALNAME, toPrefixString(VALUE_QNAME));
392 }
393 catch (SAXException e)
394 {
395 throw new ExporterException("Failed to process content event - nodeRef " + nodeRef + "; property " + toPrefixString(property));
396 }
397 catch (IOException e)
398 {
399 throw new ExporterException("Failed to process content event - nodeRef " + nodeRef + "; property " + toPrefixString(property));
400 }
401 }
402
403
406 public void startAssoc(NodeRef nodeRef, QName assoc)
407 {
408 }
409
410
413 public void endAssoc(NodeRef nodeRef, QName assoc)
414 {
415 }
416
417
420 public void startAssocs(NodeRef nodeRef)
421 {
422 }
423
424
427 public void endAssocs(NodeRef nodeRef)
428 {
429 }
430
431
434 public void startReference(NodeRef nodeRef, QName childName)
435 {
436 }
437
438
441 public void endReference(NodeRef nodeRef)
442 {
443 }
444
445
448 public void warning(String warning)
449 {
450 }
451
452
455 public void end()
456 {
457 try
458 {
459 contentHandler.endDocument();
460 }
461 catch (SAXException e)
462 {
463 throw new ExporterException("Failed to process end export event", e);
464 }
465 }
466
467
472 private String toPrefixString(QName qname)
473 {
474 return qname.toPrefixString(session.getNamespaceResolver());
475 }
476
477 }
478 |
Popular Tags |
Java API By Example, From Geeks To Geeks.