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/*****************************************************************************
* Copyright (c) 2010 ATOS ORIGIN.
*
* 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:
* Tristan Faure (ATOS ORIGIN INTEGRATION) tristan.faure@atosorigin.com - Initial API and implementation
*****************************************************************************/
package org.eclipse.papyrus.infra.services.resourceloading;
import java.util.List;
import org.eclipse.emf.common.notify.Notifier;
import org.eclipse.emf.common.util.URI;
import org.eclipse.emf.ecore.EObject;
import org.eclipse.emf.ecore.resource.Resource;
import org.eclipse.papyrus.infra.core.resource.ModelSet;
import org.eclipse.papyrus.infra.services.controlmode.history.HistoryModel;
import org.eclipse.papyrus.infra.services.controlmode.history.utils.HistoryUtils;
import org.eclipse.papyrus.infra.services.controlmode.mm.history.ControledResource;
/**
* This manager navigates in the history to access to controlled resources
*
* @author tfaure
*
*/
public class HistoryRoutingManager {
private ControledResourceAdapter adapter;
private final IProxyManager proxyManager;
public HistoryRoutingManager(IProxyManager proxyManager) {
this.proxyManager = proxyManager;
}
/**
* Returns the eobject navigating through the history
*
* @param modelSet
* @param resourceURI
* @param fragment
* @return
*/
public EObject getEObject(ModelSet modelSet, String resourceURI, String fragment) {
adapter = HistoryRoutingUtils.getControledResourceAdapter(modelSet);
EObject result = null;
HistoryModel historyModel = HistoryUtils.getHistoryModel(modelSet);
if (historyModel != null) {
List<ControledResource> res = adapter.getControledResource(resourceURI);
if (res != null) {
for (ControledResource controled : res) {
for (ControledResource child : controled.getChildren()) {
URI locationURI = URI.createURI(child.getResourceURL());
URI toGet = locationURI.resolve(HistoryUtils.getURIFullPath(child.eResource().getURI()));
Resource resource = modelSet.getResource(toGet, proxyManager.loadResource(locationURI));
if (resource != null) {
result = resource.getEObject(fragment);
if (result != null) {
break;
} else {
result = getEObject(modelSet, child.getResourceURL(), fragment);
if (result != null) {
break;
}
}
}
}
}
}
}
return result;
}
/**
* Unload the routing manager dropping the ControledResourceAdapter
*/
public void unload() {
if (adapter != null) {
Notifier resSet = adapter.getTarget();
resSet.eAdapters().remove(adapter);
adapter = null;
}
}
}
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