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.File; 022 import java.io.IOException; 023 import java.util.Map; 024 025 import org.apache.commons.exec.CommandLine; 026 import org.apache.commons.exec.environment.EnvironmentUtils; 027 028 /** 029 * A command launcher for a particular JVM/OS platform. This class is a general 030 * purpose command launcher which can only launch commands in the current 031 * working directory. 032 */ 033 public abstract class CommandLauncherImpl implements CommandLauncher { 034 035 public Process exec(final CommandLine cmd, final Map env) 036 throws IOException { 037 String[] envVar = EnvironmentUtils.toStrings(env); 038 return Runtime.getRuntime().exec(cmd.toStrings(), envVar); 039 } 040 041 public abstract Process exec(final CommandLine cmd, final Map env, 042 final File workingDir) throws IOException; 043 044 /** @see org.apache.commons.exec.launcher.CommandLauncher#isFailure(int) */ 045 public boolean isFailure(final int exitValue) 046 { 047 // non zero exit value signals failure 048 return exitValue != 0; 049 } 050 }