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