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
019package org.apache.commons.exec.launcher;
020
021import org.apache.commons.exec.OS;
022
023/**
024 * Builds a command launcher for the OS and JVM we are running under.
025 *
026 * @version $Id: CommandLauncherFactory.java 1556869 2014-01-09 16:51:11Z britter $
027 */
028public final class CommandLauncherFactory {
029
030    private CommandLauncherFactory() {
031    }
032
033    /**
034     * Factory method to create an appropriate launcher.
035     *
036     * @return the command launcher
037     */
038    public static CommandLauncher createVMLauncher() {
039        // Try using a JDK 1.3 launcher
040        CommandLauncher launcher;
041
042        if (OS.isFamilyOpenVms()) {
043            launcher = new VmsCommandLauncher();
044        } else {
045            launcher = new Java13CommandLauncher();
046        }
047
048        return launcher;
049    }
050}