    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 *      https://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    /**
    034     * Constructs a new instance.
    035     */
    036    public CommandLauncherImpl() {
    037        // empty
    038    }
    039
    040    @Override
    041    public Process exec(final CommandLine cmd, final Map<String, String> env) throws IOException {
    042        return Runtime.getRuntime().exec(cmd.toStrings(), EnvironmentUtils.toStrings(env));
    043    }
    044
    045    @Override
    046    public abstract Process exec(final CommandLine cmd, final Map<String, String> env, final File workingDir) throws IOException;
    047
    048    /** @see org.apache.commons.exec.launcher.CommandLauncher#isFailure(int) */
    049    @Override
    050    public boolean isFailure(final int exitValue) {
    051        // non zero exit value signals failure
    052        return exitValue != 0;
    053    }
    054}