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/*******************************************************************************
* Copyright (c) 2009 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.repository.artifact;
import org.eclipse.equinox.internal.provisional.p2.metadata.IArtifactKey;
import org.eclipse.equinox.internal.provisional.p2.metadata.VersionRange;
import org.eclipse.equinox.internal.provisional.p2.metadata.query.MatchQuery;
/**
* An IArtifactQuery returning matching IArtifactKey objects.
*/
public class ArtifactKeyQuery extends MatchQuery {
public static final ArtifactKeyQuery ALL_KEYS = new ArtifactKeyQuery();
private String id;
private String classifier;
private VersionRange range;
private IArtifactKey artifactKey;
/**
* Pass the id and/or version range to match IArtifactKeys against.
* Passing null results in matching any id/version
* @param id - the IArtifactKey id
* @param range - A version range
*/
public ArtifactKeyQuery(String classifier, String id, VersionRange range) {
this.id = id;
this.classifier = classifier;
this.range = range;
}
public ArtifactKeyQuery() {
//matches everything
}
public ArtifactKeyQuery(IArtifactKey key) {
this.artifactKey = key;
}
public boolean isMatch(Object candidate) {
if (!(candidate instanceof IArtifactKey))
return false;
if (artifactKey != null)
return matchKey((IArtifactKey) candidate);
IArtifactKey key = (IArtifactKey) candidate;
if (classifier != null && !key.getClassifier().equals(classifier))
return false;
if (id != null && !key.getId().equals(id))
return false;
if (range != null && !range.isIncluded(key.getVersion()))
return false;
return true;
}
protected boolean matchKey(IArtifactKey candidate) {
return artifactKey.equals(candidate);
}
// We are interested in IArtifactKey objects
public Boolean getExcludeArtifactKeys() {
return Boolean.FALSE;
}
// We are not interested in IArtifactDescriptor objects
public Boolean getExcludeArtifactDescriptors() {
return Boolean.TRUE;
}
}
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