001 /*
002 * Licensed to the Apache Software Foundation (ASF) under one or more
003 * contributor license agreements. See the NOTICE file distributed with
004 * this work for additional information regarding copyright ownership.
005 * The ASF licenses this file to You under the Apache License, Version 2.0
006 * (the "License"); you may not use this file except in compliance with
007 * the License. You may obtain a copy of the License at
008 *
009 * http://www.apache.org/licenses/LICENSE-2.0
010 *
011 * Unless required by applicable law or agreed to in writing, software
012 * distributed under the License is distributed on an "AS IS" BASIS,
013 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
014 * See the License for the specific language governing permissions and
015 * limitations under the License.
016 *
017 */
018
019 package org.apache.commons.exec.launcher;
020
021 import java.io.IOException;
022 import java.util.Map;
023
024 import org.apache.commons.exec.CommandLine;
025
026 /**
027 * A command launcher that proxies another command launcher. Sub-classes
028 * override exec(args, env, workdir)
029 */
030 public abstract class CommandLauncherProxy extends CommandLauncherImpl {
031
032 public CommandLauncherProxy(final CommandLauncher launcher) {
033 myLauncher = launcher;
034 }
035
036 private final CommandLauncher myLauncher;
037
038 /**
039 * Launches the given command in a new process. Delegates this method to the
040 * proxied launcher
041 *
042 * @param cmd
043 * the command line to execute as an array of strings
044 * @param env
045 * the environment to set as an array of strings
046 * @throws IOException
047 * forwarded from the exec method of the command launcher
048 */
049 public Process exec(final CommandLine cmd, final Map env)
050 throws IOException {
051 return myLauncher.exec(cmd, env);
052 }
053 }