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/*******************************************************************************
* Copyright (c) 2010 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
* Dariusz Luksza <dariusz@luksza.org>
*******************************************************************************/
package org.eclipse.egit.core.synchronize;
import java.io.ByteArrayInputStream;
import java.io.IOException;
import java.io.InputStream;
import org.eclipse.core.resources.IEncodedStorage;
import org.eclipse.core.resources.IStorage;
import org.eclipse.core.runtime.CoreException;
import org.eclipse.core.runtime.IPath;
import org.eclipse.core.runtime.IProgressMonitor;
import org.eclipse.core.runtime.IStatus;
import org.eclipse.core.runtime.Platform;
import org.eclipse.core.runtime.Status;
import org.eclipse.core.runtime.content.IContentDescription;
import org.eclipse.core.runtime.content.IContentTypeManager;
import org.eclipse.egit.core.Activator;
import org.eclipse.jgit.lib.ObjectId;
import org.eclipse.jgit.lib.ObjectLoader;
import org.eclipse.jgit.lib.Repository;
import org.eclipse.team.core.TeamException;
/**
* This is a representation of a file's blob in some branch.
*/
public class GitBlobResourceVariant extends GitResourceVariant {
private IStorage storage;
private byte[] bytes;
GitBlobResourceVariant(Repository repo, ObjectId objectId, String path)
throws IOException {
super(repo, objectId, path);
if (getObjectId() != null) {
ObjectLoader blob = repo.open(getObjectId());
bytes = blob.getBytes();
}
}
public boolean isContainer() {
return false;
}
public IStorage getStorage(IProgressMonitor monitor) throws TeamException {
if (storage == null) {
storage = new IEncodedStorage() {
public Object getAdapter(Class adapter) {
return null;
}
public boolean isReadOnly() {
return true;
}
public String getName() {
return GitBlobResourceVariant.this.getName();
}
public IPath getFullPath() {
return null;
}
public InputStream getContents() throws CoreException {
return new ByteArrayInputStream(bytes);
}
public String getCharset() throws CoreException {
IContentTypeManager manager = Platform
.getContentTypeManager();
try {
IContentDescription description = manager
.getDescriptionFor(getContents(),
getName(), IContentDescription.ALL);
return description == null ? null : description
.getCharset();
} catch (IOException e) {
throw new CoreException(new Status(IStatus.ERROR,
Activator.getPluginId(), e.getMessage(), e));
}
}
};
}
return storage;
}
public byte[] asBytes() {
return bytes;
}
}
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