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/*******************************************************************************
* Copyright (C) 2010, Dariusz Luksza <dariusz@luksza.org>
*
* 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
*******************************************************************************/
package org.eclipse.egit.ui.internal.synchronize.mapping;
import org.eclipse.core.resources.mapping.ResourceMapping;
import org.eclipse.core.resources.mapping.ResourceMappingContext;
import org.eclipse.core.resources.mapping.ResourceTraversal;
import org.eclipse.core.runtime.CoreException;
import org.eclipse.core.runtime.IAdaptable;
import org.eclipse.core.runtime.NullProgressMonitor;
import org.eclipse.egit.core.Activator;
import org.eclipse.egit.core.synchronize.GitSubscriberMergeContext;
import org.eclipse.egit.core.synchronize.GitSubscriberResourceMappingContext;
import org.eclipse.egit.ui.internal.synchronize.GitChangeSetModelProvider;
import org.eclipse.egit.ui.internal.synchronize.model.GitModelRoot;
import org.eclipse.jface.viewers.ITreeContentProvider;
import org.eclipse.team.core.mapping.ISynchronizationContext;
import org.eclipse.team.ui.mapping.SynchronizationContentProvider;
import org.eclipse.ui.model.WorkbenchContentProvider;
/**
* Git's variant of {@link SynchronizationContentProvider}. This class creates
* model root of change set and base {@link ResourceTraversal}'s.
*/
public class GitChangeSetContentProvider extends SynchronizationContentProvider {
private ITreeContentProvider provider;
private GitModelRoot modelRoot;
@Override
protected ITreeContentProvider getDelegateContentProvider() {
if (provider == null)
provider = new WorkbenchContentProvider();
return provider;
}
@Override
protected String getModelProviderId() {
return GitChangeSetModelProvider.ID;
}
@Override
protected Object getModelRoot() {
if (modelRoot == null) {
GitSubscriberMergeContext context = (GitSubscriberMergeContext) getContext();
modelRoot = new GitModelRoot(context.getSyncData());
}
return modelRoot;
}
@Override
protected ResourceTraversal[] getTraversals(
ISynchronizationContext context, Object object) {
if (object instanceof IAdaptable) {
ResourceMapping rm = getResourceMapping(object);
GitSubscriberMergeContext ctx = (GitSubscriberMergeContext) getContext();
ResourceMappingContext rmCtx = new GitSubscriberResourceMappingContext(
ctx.getSyncData());
try {
return rm.getTraversals(rmCtx, new NullProgressMonitor());
} catch (CoreException e) {
Activator.logError(e.getMessage(), e);
}
}
return null;
}
private ResourceMapping getResourceMapping(Object object) {
return (ResourceMapping) ((IAdaptable) object)
.getAdapter(ResourceMapping.class);
}
@Override
public void dispose() {
if (provider != null)
provider.dispose();
super.dispose();
}
}
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