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 }