source.dussan.org Git - archiva.git/blob

   1 package org.apache.maven.archiva.dependency.graph.tasks;
   2
   3 /*
   4  * Licensed to the Apache Software Foundation (ASF) under one
   5  * or more contributor license agreements.  See the NOTICE file
   6  * distributed with this work for additional information
   7  * regarding copyright ownership.  The ASF licenses this file
   8  * to you under the Apache License, Version 2.0 (the
   9  * "License"); you may not use this file except in compliance
  10  * with the License.  You may obtain a copy of the License at
  11  *
  12  *  http://www.apache.org/licenses/LICENSE-2.0
  13  *
  14  * Unless required by applicable law or agreed to in writing,
  15  * software distributed under the License is distributed on an
  16  * "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
  17  * KIND, either express or implied.  See the License for the
  18  * specific language governing permissions and limitations
  19  * under the License.
  20  */
  21
  22 import org.apache.maven.archiva.dependency.graph.DependencyGraph;
  23 import org.apache.maven.archiva.dependency.graph.DependencyGraphEdge;
  24 import org.apache.maven.archiva.dependency.graph.DependencyGraphKeys;
  25 import org.apache.maven.archiva.dependency.graph.DependencyGraphNode;
  26 import org.apache.maven.archiva.dependency.graph.walk.BaseVisitor;
  27 import org.apache.maven.archiva.dependency.graph.walk.DependencyGraphVisitor;
  28 import org.apache.maven.archiva.model.ArtifactReference;
  29
  30 import java.util.Iterator;
  31 import java.util.Stack;
  32
  33 /**
  34  * FlagExcludedEdgesVisitor
  35  *
  36  * @version $Id$
  37  */
  38 public class FlagExcludedEdgesVisitor
  39     extends BaseVisitor
  40     implements DependencyGraphVisitor
  41 {
  42     private Stack nodePath = new Stack();
  43
  44     public void discoverEdge( DependencyGraphEdge edge )
  45     {
  46         ArtifactReference artifact = edge.getNodeTo();
  47
  48         // Process for excluded edges.
  49         String toKey = DependencyGraphKeys.toManagementKey( artifact );
  50         Iterator it = this.nodePath.iterator();
  51         while ( it.hasNext() )
  52         {
  53             DependencyGraphNode pathNode = (DependencyGraphNode) it.next();
  54
  55             // Process dependency declared exclusions.
  56             if ( pathNode.getExcludes().contains( toKey ) )
  57             {
  58                 edge.setDisabled( true );
  59                 edge.setDisabledType( DependencyGraph.DISABLED_EXCLUDED );
  60                 String whoExcluded = DependencyGraphKeys.toKey( pathNode );
  61                 edge.setDisabledReason( "Specifically Excluded by " + whoExcluded );
  62                 break;
  63             }
  64         }
  65     }
  66
  67     public void discoverNode( DependencyGraphNode node )
  68     {
  69         super.discoverNode( node );
  70         nodePath.push( node );
  71     }
  72
  73     public void finishNode( DependencyGraphNode node )
  74     {
  75         super.finishNode( node );
  76         DependencyGraphNode pathNode = (DependencyGraphNode) nodePath.pop();
  77         if ( !node.equals( pathNode ) )
  78         {
  79             String pathNodeKey = ArtifactReference.toKey( pathNode.getArtifact() );
  80             String finishNodeKey = ArtifactReference.toKey( node.getArtifact() );
  81             throw new IllegalStateException( "Encountered bad visitor state.  Expected finish on node " + pathNodeKey
  82                 + ", but instead got notified of node " + finishNodeKey );
  83         }
  84     }
  85 }