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/*******************************************************************************
* Copyright (c) 2008-2010 Sonatype, Inc.
* 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:
* Sonatype, Inc. - initial API and implementation
*******************************************************************************/
package org.eclipse.m2e.core.internal.project;
import java.io.File;
import java.util.Collections;
import java.util.Iterator;
import java.util.List;
import java.util.Map.Entry;
import java.util.Set;
import javax.inject.Singleton;
import org.apache.maven.artifact.Artifact;
import org.apache.maven.artifact.metadata.ResolutionGroup;
import org.apache.maven.artifact.repository.ArtifactRepository;
import org.apache.maven.project.artifact.DefaultMavenMetadataCache;
import org.apache.maven.project.artifact.MavenMetadataCache;
import org.eclipse.m2e.core.embedder.ArtifactKey;
/**
* EclipseMavenMetadataCache
*
* @author igor
*/
@Singleton
public class EclipseMavenMetadataCache extends DefaultMavenMetadataCache implements MavenMetadataCache, IManagedCache {
@Override
public void put(Artifact artifact, boolean resolveManagedVersions, ArtifactRepository localRepository,
List<ArtifactRepository> remoteRepositories, ResolutionGroup result) {
ArtifactKey gav = new ArtifactKey(artifact.getGroupId(), artifact.getArtifactId(), artifact.getVersion(), null);
if("pom".equals(artifact.getType())) { //$NON-NLS-1$
// new project pom, remove any existing project entries
removeProject(gav);
}
super.put(artifact, resolveManagedVersions, localRepository, remoteRepositories, result);
}
@Override
public Set<File> removeProject(File pom, ArtifactKey key, boolean force) {
removeProject(key);
return Collections.emptySet();
}
private void removeProject(ArtifactKey key) {
if(key == null) {
return;
}
Iterator<Entry<CacheKey, CacheRecord>> iter = cache.entrySet().iterator();
while(iter.hasNext()) {
Entry<CacheKey, CacheRecord> entry = iter.next();
CacheRecord record = entry.getValue();
if(equals(record.getArtifact(), key) || contains(record.getArtifacts(), key)) {
iter.remove();
}
}
}
private boolean contains(List<Artifact> artifacts, ArtifactKey key) {
for(Artifact artifact : artifacts) {
if(equals(artifact, key)) {
return true;
}
}
return false;
}
private boolean equals(Artifact artifact, ArtifactKey key) {
/*
* maybe too conservative, but purge anything that matches GAbV (bV==baseVersion)
*/
return eq(key.getGroupId(), artifact.getGroupId()) //
&& eq(key.getArtifactId(), artifact.getArtifactId()) //
&& eq(key.getVersion(), artifact.getBaseVersion());
}
private static <T> boolean eq(T a, T b) {
return a != null ? a.equals(b) : b == null;
}
}
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