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1
7 package org.eclipse.emf.ecore.change.impl;
8
9 import java.util.Collection  ;
10 import java.util.Iterator ;
11
12 import org.eclipse.emf.common.notify.Notification;
13 import org.eclipse.emf.common.notify.NotificationChain;
14 import org.eclipse.emf.common.util.BasicEList;
15 import org.eclipse.emf.common.util.ECollections;
16 import org.eclipse.emf.common.util.EList;
17 import org.eclipse.emf.common.util.URI;
18 import org.eclipse.emf.ecore.EClass;
19 import org.eclipse.emf.ecore.EStructuralFeature;
20 import org.eclipse.emf.ecore.InternalEObject;
21 import org.eclipse.emf.ecore.change.ChangePackage;
22 import org.eclipse.emf.ecore.change.ListChange;
23 import org.eclipse.emf.ecore.change.ResourceChange;
24 import org.eclipse.emf.ecore.impl.ENotificationImpl;
25 import org.eclipse.emf.ecore.impl.EObjectImpl;
26 import org.eclipse.emf.ecore.resource.Resource;
27 import org.eclipse.emf.ecore.resource.ResourceSet;
28 import org.eclipse.emf.ecore.util.EObjectContainmentEList;
29 import org.eclipse.emf.ecore.util.InternalEList;
30
31
47 public class ResourceChangeImpl extends EObjectImpl implements ResourceChange
48 {
49
57 protected static final String RESOURCE_URI_EDEFAULT = null;
58
59
67 protected String resourceURI = RESOURCE_URI_EDEFAULT;
68
69
77 protected static final Resource RESOURCE_EDEFAULT = null;
78
79
87 protected Resource resource = RESOURCE_EDEFAULT;
88
89
97 protected static final EList VALUE_EDEFAULT = null;
98
99
107 protected EList listChanges = null;
108
109 protected EList valueField = null;
110
111
116 protected ResourceChangeImpl()
117 {
118 super();
119 }
120
121 protected ResourceChangeImpl(Resource resource, EList value)
122 {
123 this();
124 setResource(resource);
125 setValue(value);
126 }
127
128
133 protected EClass eStaticClass()
134 {
135 return ChangePackage.eINSTANCE.getResourceChange();
136 }
137
138
143 public String getResourceURI()
144 {
145 return resourceURI;
146 }
147
148
153 public void setResourceURI(String newResourceURI)
154 {
155 String oldResourceURI = resourceURI;
156 resourceURI = newResourceURI;
157 if (eNotificationRequired())
158 eNotify(new ENotificationImpl(this, Notification.SET, ChangePackage.RESOURCE_CHANGE__RESOURCE_URI, oldResourceURI, resourceURI));
159 }
160
161
166 public Resource getResource()
167 {
168 if (resource == null)
169 {
170 if (getResourceURI() != null)
171 {
172 Resource changeResource = eResource();
173 if (changeResource != null)
174 {
175 ResourceSet resourceSet = changeResource.getResourceSet();
176 if (resourceSet != null)
177 {
178 resource = resourceSet.getResource(URI.createURI(getResourceURI()), false);
179 }
180 }
181 }
182 }
183 return resource;
184 }
185
186
191 public void setResourceGen(Resource newResource)
192 {
193 Resource oldResource = resource;
194 resource = newResource;
195 if (eNotificationRequired())
196 eNotify(new ENotificationImpl(this, Notification.SET, ChangePackage.RESOURCE_CHANGE__RESOURCE, oldResource, resource));
197 }
198
199 public void setResource(Resource newResource)
200 {
201 setResourceGen(newResource);
202 setResourceURI(newResource.getURI() == null ? null : newResource.getURI().toString());
203 }
204
205
210 public EList getValue()
211 {
212 if (valueField == null)
213 {
214 Resource resource = getResource();
215 if (resource != null)
216 {
217 EList changedList = new BasicEList(resource.getContents());
218 apply(changedList);
219 valueField = changedList; return changedList;
221 }
222 return ECollections.EMPTY_ELIST;
223 }
224 return valueField;
225 }
226
227 protected void setValue(EList value)
228 {
229 valueField = value;
230 }
231
232
237 public EList getListChanges()
238 {
239 if (listChanges == null)
240 {
241 listChanges = new EObjectContainmentEList(ListChange.class, this, ChangePackage.RESOURCE_CHANGE__LIST_CHANGES);
242 }
243 return listChanges;
244 }
245
246
251 public void apply()
252 {
253 Resource resource = getResource();
254 if (resource != null && listChanges != null)
255 {
256 apply(resource.getContents());
257 }
258 }
259
260
265 public void applyAndReverse()
266 {
267 Resource resource = getResource();
268 if (resource != null && listChanges != null)
269 {
270 EList applyToList = resource.getContents();
271 for (Iterator iter = getListChanges().iterator(); iter.hasNext(); )
272 {
273 ListChange listChange = (ListChange)iter.next();
274 listChange.applyAndReverse(applyToList);
275 }
276 ECollections.reverse(getListChanges());
277 setValue(null);
278 }
279 }
280
281 protected void apply(EList toList)
282 {
283 for (Iterator iter = getListChanges().iterator(); iter.hasNext(); )
284 {
285 ListChange listChange = (ListChange)iter.next();
286 listChange.apply(toList);
287 }
288 }
289
290
295 public NotificationChain eInverseRemove(InternalEObject otherEnd, int featureID, Class baseClass, NotificationChain msgs)
296 {
297 if (featureID >= 0)
298 {
299 switch (eDerivedStructuralFeatureID(featureID, baseClass))
300 {
301 case ChangePackage.RESOURCE_CHANGE__LIST_CHANGES:
302 return ((InternalEList)getListChanges()).basicRemove(otherEnd, msgs);
303 default:
304 return eDynamicInverseRemove(otherEnd, featureID, baseClass, msgs);
305 }
306 }
307 return eBasicSetContainer(null, featureID, msgs);
308 }
309
310
315 public Object eGet(EStructuralFeature eFeature, boolean resolve)
316 {
317 switch (eDerivedStructuralFeatureID(eFeature))
318 {
319 case ChangePackage.RESOURCE_CHANGE__RESOURCE_URI:
320 return getResourceURI();
321 case ChangePackage.RESOURCE_CHANGE__RESOURCE:
322 return getResource();
323 case ChangePackage.RESOURCE_CHANGE__VALUE:
324 return getValue();
325 case ChangePackage.RESOURCE_CHANGE__LIST_CHANGES:
326 return getListChanges();
327 }
328 return eDynamicGet(eFeature, resolve);
329 }
330
331
336 public void eSet(EStructuralFeature eFeature, Object newValue)
337 {
338 switch (eDerivedStructuralFeatureID(eFeature))
339 {
340 case ChangePackage.RESOURCE_CHANGE__RESOURCE_URI:
341 setResourceURI((String )newValue);
342 return;
343 case ChangePackage.RESOURCE_CHANGE__RESOURCE:
344 setResource((Resource)newValue);
345 return;
346 case ChangePackage.RESOURCE_CHANGE__LIST_CHANGES:
347 getListChanges().clear();
348 getListChanges().addAll((Collection )newValue);
349 return;
350 }
351 eDynamicSet(eFeature, newValue);
352 }
353
354
359 public void eUnset(EStructuralFeature eFeature)
360 {
361 switch (eDerivedStructuralFeatureID(eFeature))
362 {
363 case ChangePackage.RESOURCE_CHANGE__RESOURCE_URI:
364 setResourceURI(RESOURCE_URI_EDEFAULT);
365 return;
366 case ChangePackage.RESOURCE_CHANGE__RESOURCE:
367 setResource(RESOURCE_EDEFAULT);
368 return;
369 case ChangePackage.RESOURCE_CHANGE__LIST_CHANGES:
370 getListChanges().clear();
371 return;
372 }
373 eDynamicUnset(eFeature);
374 }
375
376
381 public boolean eIsSet(EStructuralFeature eFeature)
382 {
383 switch (eDerivedStructuralFeatureID(eFeature))
384 {
385 case ChangePackage.RESOURCE_CHANGE__RESOURCE_URI:
386 return RESOURCE_URI_EDEFAULT == null ? resourceURI != null : !RESOURCE_URI_EDEFAULT.equals(resourceURI);
387 case ChangePackage.RESOURCE_CHANGE__RESOURCE:
388 return RESOURCE_EDEFAULT == null ? resource != null : !RESOURCE_EDEFAULT.equals(resource);
389 case ChangePackage.RESOURCE_CHANGE__VALUE:
390 return VALUE_EDEFAULT == null ? getValue() != null : !VALUE_EDEFAULT.equals(getValue());
391 case ChangePackage.RESOURCE_CHANGE__LIST_CHANGES:
392 return listChanges != null && !listChanges.isEmpty();
393 }
394 return eDynamicIsSet(eFeature);
395 }
396
397
402 public String toString()
403 {
404 if (eIsProxy()) return super.toString();
405
406 StringBuffer result = new StringBuffer (super.toString());
407 result.append(" (resourceURI: ");
408 result.append(resourceURI);
409 result.append(", resource: ");
410 result.append(resource);
411 result.append(')');
412 return result.toString();
413 }
414
415 } |
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