content: /*
   *  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
   *
   *      https://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.tools.ant.taskdefs.launcher;
  
  import java.io.IOException;
  
  import org.apache.tools.ant.Project;
  
  /**
   * A command launcher that proxies another command
   * launcher. Sub-classes override exec(args, env, workdir).
   */
  public class CommandLauncherProxy extends CommandLauncher {
      private final CommandLauncher myLauncher;
  
      protected CommandLauncherProxy(CommandLauncher launcher) {
          myLauncher = launcher;
      }
  
      /**
       * Launches the given command in a new process. Delegates this
       * method to the proxied launcher.
       *
       * @param project
       *        the Ant project.
       * @param cmd
       *        the command line to execute as an array of strings.
       * @param env
       *        the environment to set as an array of strings.
       * @return the created Process.
       * @throws IOException
       *         forwarded from the exec method of the command launcher.
       */
      @Override
      public Process exec(Project project, String[] cmd, String[] env)
          throws IOException {
          return myLauncher.exec(project, cmd, env);
      }
  }