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.DependencyGraphBuilder;
  24 import org.apache.maven.archiva.dependency.graph.DependencyGraphUtils;
  25 import org.apache.maven.archiva.dependency.graph.GraphTask;
  26 import org.apache.maven.archiva.dependency.graph.GraphTaskException;
  27 import org.apache.maven.archiva.dependency.graph.walk.DependencyGraphWalker;
  28 import org.apache.maven.archiva.dependency.graph.walk.WalkDepthFirstSearch;
  29
  30 /**
  31  * PopulateGraphMasterTask - will perform a resolve / depman apply loop until the graph is fully populated.
  32  *
  33  * @author <a href="mailto:joakime@apache.org">Joakim Erdfelt</a>
  34  * @version $Id$
  35  *
  36  * @plexus.component
  37  *      role="org.apache.maven.archiva.dependency.graph.GraphTask"
  38  *      role-hint="populate-graph"
  39  *      instantiation-strategy="per-lookup"
  40  */
  41 public class PopulateGraphMasterTask
  42     implements GraphTask
  43 {
  44     private DependencyGraphBuilder builder;
  45
  46     private ResolveGraphTask resolveGraphTask = new ResolveGraphTask();
  47
  48     private DependencyManagementApplier depManApplier = new DependencyManagementApplier();
  49
  50     public void executeTask( DependencyGraph graph )
  51         throws GraphTaskException
  52     {
  53         DependencyGraphWalker walker = new WalkDepthFirstSearch();
  54
  55         boolean done = false;
  56         int maxiters = 5;
  57
  58         while ( !done )
  59         {
  60             resolveGraphTask.executeTask( graph );
  61             walker.visit( graph, depManApplier );
  62
  63             if ( !depManApplier.hasCreatedNodes() || ( maxiters < 0 ) )
  64             {
  65                 done = true;
  66                 break;
  67             }
  68
  69             maxiters--;
  70         }
  71
  72         DependencyGraphUtils.cleanupOrphanedNodes( graph );
  73     }
  74
  75     public String getTaskId()
  76     {
  77         return "populate-graph";
  78     }
  79
  80     public DependencyGraphBuilder getBuilder()
  81     {
  82         return builder;
  83     }
  84
  85     public void setBuilder( DependencyGraphBuilder builder )
  86     {
  87         this.builder = builder;
  88         this.resolveGraphTask.setBuilder( builder );
  89         this.depManApplier.setBuilder( builder );
  90     }
  91
  92 }