package org.apache.maven.archiva.dependency.graph.tasks;
/*
* Licensed to the Apache Software Foundation (ASF) under one
* or more contributor license agreements. See the NOTICE file
* distributed with this work for additional information
* regarding copyright ownership. The ASF licenses this file
* to you under the Apache License, Version 2.0 (the
* "License"); you may not use this file except in compliance
* with the License. You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing,
* software distributed under the License is distributed on an
* "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
* KIND, either express or implied. See the License for the
* specific language governing permissions and limitations
* under the License.
*/
import org.apache.maven.archiva.dependency.graph.DependencyGraph;
import org.apache.maven.archiva.dependency.graph.DependencyGraphEdge;
import org.apache.maven.archiva.dependency.graph.DependencyGraphNode;
import org.apache.maven.archiva.dependency.graph.walk.BaseVisitor;
import org.apache.maven.archiva.dependency.graph.walk.DependencyGraphVisitor;
/**
* GraphCopier
*
* @author <a href="mailto:joakime@apache.org">Joakim Erdfelt</a>
* @version $Id: GraphCopier.java 562485 2007-08-03 14:44:15Z joakime $
*/
public class GraphCopier
extends BaseVisitor
implements DependencyGraphVisitor
{
protected DependencyGraph copiedGraph;
public DependencyGraph getGraph()
{
return copiedGraph;
}
public void setGraph( DependencyGraph graph )
{
this.copiedGraph = graph;
}
public void discoverNode( DependencyGraphNode node )
{
if ( copiedGraph == null )
{
copiedGraph = new DependencyGraph( node );
}
}
/**
* Be sure to override and NOT call this method in your sub class,
* if you want to copy edges based on some kind of criteria.
*/
public void discoverEdge( DependencyGraphEdge edge )
{
copyEdge( edge );
}
public void copyEdge( DependencyGraphEdge edge )
{
DependencyGraphNode nodeFrom = graph.getNode( edge.getNodeFrom() );
DependencyGraphNode nodeTo = graph.getNode( edge.getNodeTo() );
this.copiedGraph.addNode( nodeFrom );
this.copiedGraph.addNode( nodeTo );
this.copiedGraph.addEdge( edge );
}
public void reset()
{
this.copiedGraph = null;
}
}