| package org.apache.maven.plugins.dependency.tree; |
| |
| /* |
| * 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.shared.dependency.graph.DependencyNode; |
| import org.apache.maven.shared.dependency.graph.traversal.DependencyNodeVisitor; |
| |
| import java.io.Writer; |
| import java.util.List; |
| |
| /** |
| * A dependency node visitor that serializes visited nodes to DOT format http://en.wikipedia.org/wiki/DOT_language |
| * |
| * @author <a href="mailto:pi.songs@gmail.com">Pi Song</a> |
| * @since 2.1 |
| */ |
| public class DOTDependencyNodeVisitor |
| extends AbstractSerializingVisitor |
| implements DependencyNodeVisitor |
| { |
| |
| /** |
| * Constructor. |
| * |
| * @param writer the writer to write to. |
| */ |
| public DOTDependencyNodeVisitor( Writer writer ) |
| { |
| super( writer ); |
| } |
| |
| /** |
| * {@inheritDoc} |
| */ |
| @Override |
| public boolean visit( DependencyNode node ) |
| { |
| if ( node.getParent() == null || node.getParent() == node ) |
| { |
| writer.write( "digraph \"" + node.toNodeString() + "\" { \n" ); |
| } |
| |
| // Generate "currentNode -> Child" lines |
| |
| List<DependencyNode> children = node.getChildren(); |
| |
| for ( DependencyNode child : children ) |
| { |
| writer.println( "\t\"" + node.toNodeString() + "\" -> \"" + child.toNodeString() + "\" ; " ); |
| } |
| |
| return true; |
| } |
| |
| /** |
| * {@inheritDoc} |
| */ |
| @Override |
| public boolean endVisit( DependencyNode node ) |
| { |
| if ( node.getParent() == null || node.getParent() == node ) |
| { |
| writer.write( " } " ); |
| } |
| return true; |
| } |
| |
| } |