/*
    * 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.buildcache;
  
  import java.util.concurrent.CopyOnWriteArrayList;
  
  import org.apache.maven.execution.AbstractExecutionListener;
  import org.apache.maven.execution.ExecutionEvent;
  import org.apache.maven.execution.ExecutionListener;
  
  class ChainedListener extends AbstractExecutionListener {
  
      private final ExecutionListener delegate;
  
      private final CopyOnWriteArrayList<ExecutionListener> chainedListeners = new CopyOnWriteArrayList<>();
  
      ChainedListener(ExecutionListener delegate) {
          this.delegate = delegate;
      }
  
      public boolean chainListener(ExecutionListener listener) {
          return chainedListeners.addIfAbsent(listener);
      }
  
      @Override
      public void projectDiscoveryStarted(ExecutionEvent event) {
          delegate.projectDiscoveryStarted(event);
          chainedListeners.forEach(listener -> listener.projectDiscoveryStarted(event));
      }
  
      @Override
      public void sessionStarted(ExecutionEvent event) {
          delegate.sessionStarted(event);
          chainedListeners.forEach(listener -> listener.sessionStarted(event));
      }
  
      @Override
      public void sessionEnded(ExecutionEvent event) {
          delegate.sessionEnded(event);
          chainedListeners.forEach(listener -> listener.sessionEnded(event));
      }
  
      @Override
      public void projectSkipped(ExecutionEvent event) {
          delegate.projectSkipped(event);
          chainedListeners.forEach(listener -> listener.projectSkipped(event));
      }
  
      @Override
      public void projectStarted(ExecutionEvent event) {
          delegate.projectStarted(event);
          chainedListeners.forEach(listener -> listener.projectStarted(event));
      }
  
      @Override
      public void projectSucceeded(ExecutionEvent event) {
          delegate.projectSucceeded(event);
          chainedListeners.forEach(listener -> listener.projectSucceeded(event));
      }
  
      @Override
      public void projectFailed(ExecutionEvent event) {
          delegate.projectFailed(event);
          chainedListeners.forEach(listener -> listener.projectFailed(event));
      }
  
      @Override
      public void forkStarted(ExecutionEvent event) {
          delegate.forkStarted(event);
          chainedListeners.forEach(listener -> listener.forkStarted(event));
      }
  
      @Override
      public void forkSucceeded(ExecutionEvent event) {
          delegate.forkSucceeded(event);
          chainedListeners.forEach(listener -> listener.forkSucceeded(event));
      }
  
      @Override
      public void forkFailed(ExecutionEvent event) {
          delegate.forkFailed(event);
          chainedListeners.forEach(listener -> listener.forkFailed(event));
      }
 
     @Override
     public void mojoSkipped(ExecutionEvent event) {
         delegate.mojoSkipped(event);
         chainedListeners.forEach(listener -> listener.mojoSkipped(event));
     }
 
     @Override
     public void mojoStarted(ExecutionEvent event) {
         delegate.mojoStarted(event);
         chainedListeners.forEach(listener -> listener.mojoStarted(event));
     }
 
     @Override
     public void mojoSucceeded(ExecutionEvent event) {
         delegate.mojoSucceeded(event);
         chainedListeners.forEach(listener -> listener.mojoSucceeded(event));
     }
 
     @Override
     public void mojoFailed(ExecutionEvent event) {
         delegate.mojoFailed(event);
         chainedListeners.forEach(listener -> listener.mojoFailed(event));
     }
 
     @Override
     public void forkedProjectStarted(ExecutionEvent event) {
         delegate.forkedProjectStarted(event);
         chainedListeners.forEach(listener -> listener.forkedProjectStarted(event));
     }
 
     @Override
     public void forkedProjectSucceeded(ExecutionEvent event) {
         delegate.forkedProjectSucceeded(event);
         chainedListeners.forEach(listener -> listener.forkedProjectSucceeded(event));
     }
 
     @Override
     public void forkedProjectFailed(ExecutionEvent event) {
         delegate.forkedProjectFailed(event);
         chainedListeners.forEach(listener -> listener.forkedProjectFailed(event));
     }
 }