package org.apache.maven.execution;
   
   /*
    * 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 java.util.Collections;
  import java.util.IdentityHashMap;
  import java.util.List;
  import java.util.Map;
  import java.util.concurrent.CopyOnWriteArrayList;
  
  import org.apache.maven.project.DependencyResolutionResult;
  import org.apache.maven.project.MavenProject;
  
  /** @author Jason van Zyl */
  public class DefaultMavenExecutionResult
      implements MavenExecutionResult
  {
      private MavenProject project;
  
      private List<MavenProject> topologicallySortedProjects = Collections.emptyList();
  
      private DependencyResolutionResult dependencyResolutionResult;
  
      private List<Throwable> exceptions = new CopyOnWriteArrayList<Throwable>();
  
      private Map<MavenProject, BuildSummary> buildSummaries;
  
      public MavenExecutionResult setProject( MavenProject project )
      {
          this.project = project;
  
          return this;
      }
  
      public MavenProject getProject()
      {
          return project;
      }
  
      public MavenExecutionResult setTopologicallySortedProjects( List<MavenProject> topologicallySortedProjects )
      {
          this.topologicallySortedProjects = topologicallySortedProjects;
  
          return this;
      }
  
      public List<MavenProject> getTopologicallySortedProjects()
      {
          return null == topologicallySortedProjects ? Collections.<MavenProject> emptyList() : topologicallySortedProjects;
      }
  
      public DependencyResolutionResult getDependencyResolutionResult()
      {
          return dependencyResolutionResult;
      }
  
      public MavenExecutionResult setDependencyResolutionResult( DependencyResolutionResult dependencyResolutionResult )
      {
          this.dependencyResolutionResult = dependencyResolutionResult;
  
          return this;
      }
  
      public List<Throwable> getExceptions()
      {
          return exceptions == null ? Collections.<Throwable> emptyList() : exceptions;
      }
  
      public MavenExecutionResult addException( Throwable t )
      {
          exceptions.add( t );
  
          return this;
      }
  
      public boolean hasExceptions()
      {
          return !getExceptions().isEmpty();
      }
  
      public BuildSummary getBuildSummary( MavenProject project )
      {
         return ( buildSummaries != null ) ? buildSummaries.get( project ) : null;
     }
 
     public void addBuildSummary( BuildSummary summary )
     {
         if ( buildSummaries == null )
         {
             buildSummaries = new IdentityHashMap<MavenProject, BuildSummary>();
         }
         buildSummaries.put( summary.getProject(), summary );
     }
 
 }