org.apache.commons.exec.launcher.Java13CommandLauncher Maven / Gradle / Ivy

/* 
 * Licensed to the Apache Software Foundation (ASF) under one or more
 *  contributor license agreements.  See the NOTICE file distributed with
 *  this work for additional information regarding copyright ownership.
 *  The ASF licenses this file to You under the Apache License, Version 2.0
 *  (the "License"); you may not use this file except in compliance with
 *  the License.  You may obtain a copy of the License at
 *
 *      http://www.apache.org/licenses/LICENSE-2.0
 *
 *  Unless required by applicable law or agreed to in writing, software
 *  distributed under the License is distributed on an "AS IS" BASIS,
 *  WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
 *  See the License for the specific language governing permissions and
 *  limitations under the License.
 *
 */

package org.apache.commons.exec.launcher;

import java.io.File;
import java.io.IOException;
import java.util.Map;

import org.apache.commons.exec.CommandLine;
import org.apache.commons.exec.environment.EnvironmentUtils;

/**
 * A command launcher for JDK/JRE 1.3 (and higher). Uses the built-in
 * Runtime.exec() command
 */
public class Java13CommandLauncher extends CommandLauncherImpl {

    /**
     * Constructor
     */
    public Java13CommandLauncher() {
	}

	/**
	 * Launches the given command in a new process, in the given working
	 * directory
	 * 
	 * @param cmd
	 *            the command line to execute as an array of strings
	 * @param env
	 *            the environment to set as an array of strings
	 * @param workingDir
	 *            the working directory where the command should run
	 * @throws IOException
	 *             probably forwarded from Runtime#exec
	 */
	public Process exec(final CommandLine cmd, final Map env,
			final File workingDir) throws IOException {

		final String[] envVars = EnvironmentUtils.toStrings(env);

		return Runtime.getRuntime().exec(cmd.toStrings(),
                envVars, workingDir);
	}
}