diff options
Diffstat (limited to 'plugins/org.eclipse.wst.common.emf/wtpemf/org/eclipse/wst/common/internal/emf/resource/ReferencedXMIResourceImpl.java')
| -rw-r--r-- | plugins/org.eclipse.wst.common.emf/wtpemf/org/eclipse/wst/common/internal/emf/resource/ReferencedXMIResourceImpl.java | 401 |
1 files changed, 0 insertions, 401 deletions
diff --git a/plugins/org.eclipse.wst.common.emf/wtpemf/org/eclipse/wst/common/internal/emf/resource/ReferencedXMIResourceImpl.java b/plugins/org.eclipse.wst.common.emf/wtpemf/org/eclipse/wst/common/internal/emf/resource/ReferencedXMIResourceImpl.java deleted file mode 100644 index df07748ac..000000000 --- a/plugins/org.eclipse.wst.common.emf/wtpemf/org/eclipse/wst/common/internal/emf/resource/ReferencedXMIResourceImpl.java +++ /dev/null @@ -1,401 +0,0 @@ -/*************************************************************************************************** - * Copyright (c) 2003, 2004 IBM Corporation and others. All rights reserved. This program and the - * accompanying materials are made available under the terms of the Eclipse Public License v1.0 - * which accompanies this distribution, and is available at - * http://www.eclipse.org/legal/epl-v10.html - * - * Contributors: IBM Corporation - initial API and implementation - **************************************************************************************************/ -package org.eclipse.wst.common.internal.emf.resource; - - -import java.io.IOException; -import java.io.InputStream; -import java.util.ArrayList; -import java.util.Collection; -import java.util.Collections; -import java.util.Iterator; -import java.util.List; -import java.util.Map; - -import org.eclipse.emf.common.notify.Notification; -import org.eclipse.emf.common.notify.Notifier; -import org.eclipse.emf.common.notify.impl.NotificationImpl; -import org.eclipse.emf.common.util.EList; -import org.eclipse.emf.common.util.URI; -import org.eclipse.emf.ecore.EObject; -import org.eclipse.emf.ecore.resource.Resource; -import org.eclipse.jem.util.logger.proxy.Logger; -import org.eclipse.wst.common.internal.emf.utilities.IDUtil; - -public class ReferencedXMIResourceImpl extends CompatibilityXMIResourceImpl implements ReferencedResource { - //TODO Add toString hook - private static final String TO_STRING = "ReferencedXMIResource, file = "; //$NON-NLS-1$ - private static final String READ_COUNT_TO_STRING = " R= "; //$NON-NLS-1$ - private static final String WRITE_COUNT_TO_STRING = " W= "; //$NON-NLS-1$ - - private int readReferenceCount = 1; - private int editReferenceCount = 0; - protected boolean isNew = true; - protected boolean forceRefresh; - - public static class ESynchronizedAdapterList extends EAdapterList - { - - public ESynchronizedAdapterList(Notifier notifier) { - super(notifier); - } - - public synchronized boolean add(Object object) - { - return super.add(object); - } - - public synchronized void add(int index, Object object) - { - super.add(index, object); - } - - public synchronized boolean addAll(Collection collection) - { - return super.addAll(collection); - } - - public synchronized boolean remove(Object object) - { - return super.remove(object); - } - - public synchronized Object remove(int index) - { - return super.remove(index); - } - - public synchronized boolean removeAll(Collection collection) - { - return super.removeAll(collection); - } - - public synchronized void clear() - { - super.clear(); - } - - - public synchronized Object set(int index, Object object) - { - return super.set(index, object); - } - - public synchronized void move(int newPosition, Object object) - { - super.move(newPosition, object); - } - - public synchronized Object move(int newPosition, int oldPosition) - { - return super.move(newPosition, oldPosition); - } - } - - - /** - * ReferencableXMIResourceImpl constructor comment. - */ - public ReferencedXMIResourceImpl() { - super(); - } - - public ReferencedXMIResourceImpl(URI uri) { - super(uri); - } - - /* - * (non-Javadoc) - * - * @see org.eclipse.wst.common.internal.emf.resource.ReferencedResource#getReadCount() - */ - public int getReadCount() { - return readReferenceCount; - } - - /* - * (non-Javadoc) - * - * @see org.eclipse.wst.common.internal.emf.resource.ReferencedResource#getWriteCount() - */ - public int getWriteCount() { - return editReferenceCount; - } - - - - /* - * @see ReferencedResource#accessForRead - */ - public void accessForRead() { - checkDeleted(); - if (!isNew()) - readReferenceCount++; - isNew = false; - } - - /* - * @see ReferencedResource#accessForWrite - */ - public void accessForWrite() { - checkDeleted(); - editReferenceCount++; - if (isNew) - releaseFromRead(); - isNew = false; - if (!isTrackingModification()) - setTrackingModification(true); - } - - /* - * Check if this resource has been removed and throw an exception if it does not have a - * ResourceSet. - */ - protected void checkDeleted() { - if (getResourceSet() == null) - throw new RuntimeException(DELETED_ERROR_MSG); - } - - /** - * - */ - public void collectContainedObjects(java.util.List collecting, EObject parentObject) { - - java.util.Iterator children = parentObject.eContents().iterator(); - while (children.hasNext()) { - EObject child = (EObject) children.next(); - collecting.add(child); - collectContainedObjects(collecting, child); - } - } - - /** - * - */ - public void ensureFullIDHydration() { - List allRefObjects = new ArrayList(); - Iterator rootObjects = getContents().iterator(); - while (rootObjects.hasNext()) { - EObject child = (EObject) rootObjects.next(); - allRefObjects.add(child); - collectContainedObjects(allRefObjects, child); - } - - Iterator iter = allRefObjects.iterator(); - while (iter.hasNext()) - IDUtil.assignID((EObject) iter.next(), this); - } - - /** - * If the resource is no longer being accessed, then remove it from the resource set. - */ - public void unloadIfNecessary() { - if ((getTotalReferenceCount() <= 0) || (editReferenceCount <= 0 && isModified())) - unload(); - } - - /** - * Return the number of write accesses to this resource. - * - * @return int The number of references. - */ - protected int getTotalReferenceCount() { - return editReferenceCount + readReferenceCount; - } - - /* - * @see ReferencedResource#isNew - */ - public boolean isNew() { - return isNew; - } - - /* - * @see ReferencedResource#isReadOnly - */ - public boolean isReadOnly() { - return editReferenceCount <= 0; - } - - /* - * @see ReferencedResource#isShared - */ - public boolean isShared() { - return getTotalReferenceCount() > 1; - } - - /* - * @see ReferencedResource#isSharedForWrite - */ - public boolean isSharedForWrite() { - return editReferenceCount > 1; - } - - /** - * @see ReferencedResource#preDelete - */ - public void preDelete() { - } - - /* - * @see ReferencedResource#releaseFromRead - */ - public void releaseFromRead() { - readReferenceCount--; - if (readReferenceCount < 0) - throw new RuntimeException("Read reference count error: " + this.toString()); //$NON-NLS-1$ - unloadIfNecessary(); - } - - /* - * @see ReferencedResource#releaseFromWrite - */ - public void releaseFromWrite() { - editReferenceCount--; - if (editReferenceCount < 0) - throw new RuntimeException("Write reference count error: " + this.toString()); //$NON-NLS-1$ - unloadIfNecessary(); - } - - /* - * @see ReferencedResource#saveIfNecessary - */ - public void saveIfNecessary() throws Exception { - if (!isSharedForWrite()) // caller is the only referencer - save(Collections.EMPTY_MAP); - } - - public String toString() { - return TO_STRING + getURI().toString() + READ_COUNT_TO_STRING + new Integer(readReferenceCount) + WRITE_COUNT_TO_STRING + new Integer(editReferenceCount); - } - - /* - * @see ReferencedResource#needsToSave() - */ - public boolean needsToSave() { - return isModified() && !isSharedForWrite(); - } - - - /** - * @see ReferencedResource#setForceRefresh(boolean) - */ - public void setForceRefresh(boolean b) { - forceRefresh = b; - } - - /** - * @see ReferencedResource#shouldForceRefresh() - */ - public boolean shouldForceRefresh() { - return forceRefresh; - } - - protected void basicDoLoad(InputStream arg0, Map arg1) throws IOException { - boolean isTrackingMods = isTrackingModification(); - try { - if (isTrackingMods) - setTrackingModification(false); - super.basicDoLoad(arg0, arg1); - } finally { - if (isTrackingMods) - setTrackingModification(true); - } - } - - /** - * @see org.eclipse.emf.ecore.xmi.impl.XMLResourceImpl#doUnload() - */ - protected void doUnload() { - if (isTrackingModification() && editReferenceCount < 1) //do not turn off modification if - // we still have a write count - setTrackingModification(false); - super.doUnload(); - setForceRefresh(false); - setModified(false); //dcb - this is required to ensure that resources without files are - // marked as not modified. - if (readReferenceCount == 0 && editReferenceCount == 0) - resetAsNew(); - } - - - /** - * The resource has been unloaded, and there are no references. Treat the resource like a new - * Resource - */ - private void resetAsNew() { - readReferenceCount = 1; - isNew = true; - } - - /** - * @see Resource#save(Object) - */ - public void save(Map options) throws IOException { - notifyAboutToSave(); - try { - super.save(options); - } catch (Exception e) { - notifySaveFailed(); - if (e instanceof IOException) - throw (IOException) e; - else - Logger.getLogger().write(e); - } - notifySaved(); - } - - protected void notifySaved() { - notifySaveEvent(RESOURCE_WAS_SAVED); - } - - protected void notifyAboutToSave() { - notifySaveEvent(RESOURCE_ABOUT_TO_SAVE); - } - - protected void notifySaveFailed() { - notifySaveEvent(RESOURCE_SAVE_FAILED); - } - - private void notifySaveEvent(int eventType) { - if (eNotificationRequired()) { - Notification notification = - new NotificationImpl(eventType, this, this) - { - public Object getNotifier() - { - return ReferencedXMIResourceImpl.this; - } - public int getFeatureID(Class expectedClass) - { - return eventType; - } - }; - eNotify(notification); - } - } - - /** - * @see com.ibm.etools.emf.workbench.ReferencedResource#wasReverted() - */ - public boolean wasReverted() { - return false; - } - - public EList eAdapters() - { - if (eAdapters == null) - { - eAdapters = new ESynchronizedAdapterList(this); - } - return eAdapters; - } - - -}
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