/*******************************************************************************
* Copyright (c) 2010, 2014 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.aether.internal.ant;
import java.io.File;
import java.util.ArrayList;
import java.util.List;
import java.util.Map;
import java.util.concurrent.ConcurrentHashMap;
import org.apache.maven.model.Model;
import org.eclipse.aether.artifact.Artifact;
import org.eclipse.aether.artifact.DefaultArtifact;
import org.eclipse.aether.internal.ant.types.Pom;
import org.eclipse.aether.repository.WorkspaceReader;
import org.eclipse.aether.repository.WorkspaceRepository;
import org.eclipse.aether.util.artifact.ArtifactIdUtils;
/**
* Workspace reader caching available POMs and artifacts for ant builds.
* <p/>
* <pom> elements are cached if they are defined by the 'file'-attribute, as they reference a backing pom.xml file that
* can be used for resolution with Aether. <artifact> elements are cached if they directly define a 'pom'-attribute
* or child. The POM may be file-based or in-memory.
*/
public class ProjectWorkspaceReader
implements WorkspaceReader
{
private static volatile ProjectWorkspaceReader instance;
private static final Object LOCK = new Object();
private Map<String, Artifact> artifacts = new ConcurrentHashMap<String, Artifact>();
public void addPom( Pom pom )
{
if ( pom.getFile() != null )
{
Model model = pom.getModel( pom );
Artifact aetherArtifact =
new DefaultArtifact( model.getGroupId(), model.getArtifactId(), null, "pom", model.getVersion() );
aetherArtifact = aetherArtifact.setFile( pom.getFile() );
String coords = coords( aetherArtifact );
artifacts.put( coords, aetherArtifact );
}
}
public void addArtifact( org.eclipse.aether.internal.ant.types.Artifact artifact )
{
if ( artifact.getPom() != null )
{
Pom pom = artifact.getPom();
Artifact aetherArtifact;
if ( pom.getFile() != null )
{
Model model = pom.getModel( pom );
aetherArtifact =
new DefaultArtifact( model.getGroupId(), model.getArtifactId(), artifact.getClassifier(),
artifact.getType(), model.getVersion() );
}
else
{
aetherArtifact =
new DefaultArtifact( pom.getGroupId(), pom.getArtifactId(), artifact.getClassifier(),
artifact.getType(), pom.getVersion() );
}
aetherArtifact = aetherArtifact.setFile( artifact.getFile() );
String coords = coords( aetherArtifact );
artifacts.put( coords, aetherArtifact );
}
}
private String coords( Artifact artifact )
{
return ArtifactIdUtils.toId( artifact );
}
public WorkspaceRepository getRepository()
{
return new WorkspaceRepository( "ant" );
}
public File findArtifact( Artifact artifact )
{
artifact = artifacts.get( coords( artifact ) );
return ( artifact != null ) ? artifact.getFile() : null;
}
public List<String> findVersions( Artifact artifact )
{
List<String> versions = new ArrayList<String>();
for ( Artifact art : artifacts.values() )
{
if ( ArtifactIdUtils.equalsVersionlessId( artifact, art ) )
{
versions.add( art.getVersion() );
}
}
return versions;
}
ProjectWorkspaceReader()
{
}
public static ProjectWorkspaceReader getInstance()
{
if ( instance == null )
{
synchronized ( LOCK )
{
if ( instance == null )
{
instance = new ProjectWorkspaceReader();
}
}
}
return instance;
}
static void dropInstance()
{
instance = null;
}
}