package org.codehaus.mojo.gwt.shell;
   
   /*
    * 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 org.apache.maven.plugin.MojoExecutionException;
  import org.apache.maven.plugin.MojoFailureException;
  import org.apache.maven.plugins.annotations.Mojo;
  import org.apache.maven.plugins.annotations.Parameter;
  import org.apache.maven.plugins.annotations.ResolutionScope;
  
  /**
   * Runs the project with a debugger port hook (optionally suspended).
   *
   * @author cooper
   * @version $Id$
   */
  @Mojo(name = "debug", requiresDirectInvocation = true, requiresDependencyResolution = ResolutionScope.TEST)
  public class DebugMojo
      extends RunMojo
  {
  
      /**
       * Port to listen for debugger connection on.
       */
      @Parameter(defaultValue = "8000", property = "gwt.debugPort")
      private int debugPort;
  
      /**
       * Whether or not to suspend execution until a debugger connects.
       */
      @Parameter(defaultValue = "true", property = "gwt.debugSuspend")
      private boolean debugSuspend;
  
      /**
       * Attach to the debugger application at the specified debugPort.
       */
      @Parameter(defaultValue = "false", property = "attachDebugger")
      private boolean attachDebugger;
  
      /**
       * Override extraJVMArgs to append JVM debugger option
       * <p>
       * {@inheritDoc}
       * 
       * @see org.codehaus.mojo.gwt.shell.AbstractGwtShellMojo#getExtraJvmArgs()
       */
      @Override
      public String getExtraJvmArgs()
      {
          String extras = super.getExtraJvmArgs();
          extras += " -Xdebug -Xnoagent -Djava.compiler=NONE -Xrunjdwp:transport=dt_socket";
          extras += ",server=" + ( attachDebugger ? "n" : "y" );
          extras += ",address=" + debugPort;
          extras += ",suspend=" + ( debugSuspend ? "y" : "n" );
          return extras;
      }
  
  
      @Override
      public void doExecute()
          throws MojoExecutionException, MojoFailureException
      {
          if ( debugSuspend )
          {
              getLog().info( "starting debugger on port " + debugPort + " in suspend mode" );
          }
          else
          {
              getLog().info( "starting debugger on port " + debugPort );
          }
  
          super.doExecute( );
      }
  }