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
018package org.apache.commons.exec.launcher;
019
020import java.io.File;
021import java.io.IOException;
022import java.util.Map;
023
024import org.apache.commons.exec.CommandLine;
025import org.apache.commons.exec.environment.EnvironmentUtils;
026
027/**
028 * A command launcher for a particular JVM/OS platform. This class is a general purpose command launcher which can only launch commands in the current working
029 * directory.
030 */
031public abstract class CommandLauncherImpl implements CommandLauncher {
032
033    @Override
034    public Process exec(final CommandLine cmd, final Map<String, String> env) throws IOException {
035        return Runtime.getRuntime().exec(cmd.toStrings(), EnvironmentUtils.toStrings(env));
036    }
037
038    @Override
039    public abstract Process exec(final CommandLine cmd, final Map<String, String> env, final File workingDir) throws IOException;
040
041    /** @see org.apache.commons.exec.launcher.CommandLauncher#isFailure(int) */
042    @Override
043    public boolean isFailure(final int exitValue) {
044        // non zero exit value signals failure
045        return exitValue != 0;
046    }
047}