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/*******************************************************************************
* Copyright (c) 2008, 2017 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.equinox.p2.internal.repository.comparator;
import org.eclipse.core.runtime.*;
import org.eclipse.equinox.internal.p2.artifact.repository.Activator;
import org.eclipse.equinox.p2.internal.repository.tools.Messages;
import org.eclipse.equinox.p2.repository.artifact.IArtifactDescriptor;
import org.eclipse.equinox.p2.repository.artifact.IArtifactRepository;
import org.eclipse.equinox.p2.repository.tools.comparator.IArtifactComparator;
import org.eclipse.osgi.util.NLS;
/**
* A comparator that compares two artifacts by checking the MD5 checksum
* recorded in the artifact descriptor. This comparator doesn't actually compute MD5
* checksums directly.
*/
public class MD5ArtifactComparator implements IArtifactComparator {
public static String MD5_COMPARATOR_ID = "org.eclipse.equinox.artifact.md5.comparator"; //$NON-NLS-1$
@Override
public IStatus compare(IArtifactRepository source, IArtifactDescriptor sourceDescriptor, IArtifactRepository destination, IArtifactDescriptor destDescriptor) {
String sourceMD5 = sourceDescriptor.getProperty(IArtifactDescriptor.DOWNLOAD_MD5);
String destMD5 = destDescriptor.getProperty(IArtifactDescriptor.DOWNLOAD_MD5);
if (sourceMD5 == null && destMD5 == null)
return new Status(IStatus.INFO, Activator.ID, NLS.bind(Messages.info_noMD5Infomation, sourceDescriptor));
if (sourceMD5 == null)
return new Status(IStatus.INFO, Activator.ID, NLS.bind(Messages.info_noMD5InRepository, source, sourceDescriptor));
if (destMD5 == null)
return new Status(IStatus.INFO, Activator.ID, NLS.bind(Messages.info_noMD5InRepository, destination, destDescriptor));
if (sourceMD5.equals(destMD5))
return Status.OK_STATUS;
return new Status(IStatus.WARNING, Activator.ID, NLS.bind(Messages.warning_differentMD5, new Object[] {URIUtil.toUnencodedString(sourceDescriptor.getRepository().getLocation()), URIUtil.toUnencodedString(destDescriptor.getRepository().getLocation()), sourceDescriptor}));
}
}
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