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/*******************************************************************************
* Copyright (c) 2012 Obeo.
* 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:
* Obeo - initial API and implementation
*******************************************************************************/
package org.eclipse.emf.compare.ide.ui.internal.contentmergeviewer.accessor;
import java.io.ByteArrayInputStream;
import java.io.InputStream;
import org.eclipse.compare.IStreamContentAccessor;
import org.eclipse.compare.ITypedElement;
import org.eclipse.core.runtime.CoreException;
import org.eclipse.core.runtime.Platform;
import org.eclipse.swt.graphics.Image;
import org.osgi.framework.Bundle;
import org.osgi.framework.Version;
/**
* @author <a href="mailto:mikael.barbero@obeo.fr">Mikael Barbero</a>
*/
public final class AccessorAdapter implements ITypedElement, IStreamContentAccessor {
/**
* Fix for #293926 has been release in org.eclipse.compare 3.5.201.R37x_v20110817-0800
*/
private static final Version BUG_293926_VERSION = Version.parseVersion("3.5.201"); //$NON-NLS-1$
private final Object target;
private AccessorAdapter(Object target) {
this.target = target;
}
/**
*
*/
public Object getTarget() {
return target;
}
public static AccessorAdapter adapt(Object target) {
return new AccessorAdapter(target);
}
/**
* {@inheritDoc}
*
* @see org.eclipse.compare.IStreamContentAccessor#getContents()
*/
public InputStream getContents() throws CoreException {
if (target instanceof org.eclipse.emf.compare.rcp.ui.internal.contentmergeviewer.accessor.legacy.IStreamContentAccessor) {
return ((org.eclipse.emf.compare.rcp.ui.internal.contentmergeviewer.accessor.legacy.IStreamContentAccessor)target)
.getContents();
}
/*
* #293926 : Whatever we return has no importance as long as it is not "null", this is only to make
* CompareUIPlugin#guessType happy. However, it is only happy if what we return resembles a text. Note
* that this bug has been fixed in 3.7.1, we're keeping this around for the compatibility with 3.5 and
* 3.6.
*/
Bundle compareBundle = Platform.getBundle("org.eclipse.compare"); //$NON-NLS-1$
Version compareBundleVersion = compareBundle.getVersion();
if (compareBundleVersion.compareTo(BUG_293926_VERSION) < 0) {
// workaround for before before indigo SR1 - 3.7.1
return new ByteArrayInputStream(new byte[] {' ' });
} else {
return null;
}
}
/**
* {@inheritDoc}
*
* @see org.eclipse.compare.ITypedElement#getName()
*/
public String getName() {
if (target instanceof org.eclipse.emf.compare.rcp.ui.internal.contentmergeviewer.accessor.legacy.ITypedElement) {
return ((org.eclipse.emf.compare.rcp.ui.internal.contentmergeviewer.accessor.legacy.ITypedElement)target)
.getName();
}
return null;
}
/**
* {@inheritDoc}
*
* @see org.eclipse.compare.ITypedElement#getImage()
*/
public Image getImage() {
if (target instanceof org.eclipse.emf.compare.rcp.ui.internal.contentmergeviewer.accessor.legacy.ITypedElement) {
return ((org.eclipse.emf.compare.rcp.ui.internal.contentmergeviewer.accessor.legacy.ITypedElement)target)
.getImage();
}
return null;
}
/**
* {@inheritDoc}
*
* @see org.eclipse.compare.ITypedElement#getType()
*/
public String getType() {
if (target instanceof org.eclipse.emf.compare.rcp.ui.internal.contentmergeviewer.accessor.legacy.ITypedElement) {
return ((org.eclipse.emf.compare.rcp.ui.internal.contentmergeviewer.accessor.legacy.ITypedElement)target)
.getType();
}
return null;
}
}
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