001/*
002 * Licensed to the Apache Software Foundation (ASF) under one
003 * or more contributor license agreements.  See the NOTICE file
004 * distributed with this work for additional information
005 * regarding copyright ownership.  The ASF licenses this file
006 * to you under the Apache License, Version 2.0 (the
007 * "License"); you may not use this file except in compliance
008 * with the License.  You may obtain a copy of the License at
009 *
010 *   https://www.apache.org/licenses/LICENSE-2.0
011 *
012 * Unless required by applicable law or agreed to in writing,
013 * software distributed under the License is distributed on an
014 * "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
015 * KIND, either express or implied.  See the License for the
016 * specific language governing permissions and limitations
017 * under the License.
018 */
019
020package org.apache.commons.exec.launcher;
021
022import org.apache.commons.exec.OS;
023
024/**
025 * Builds a command launcher for the OS and JVM we are running under.
026 */
027public final class CommandLauncherFactory {
028
029    /**
030     * Factory method to create an appropriate launcher.
031     *
032     * @return the command launcher.
033     */
034    public static CommandLauncher createVMLauncher() {
035        // Try using a JDK 1.3 launcher
036        return OS.isFamilyOpenVms() ? new VmsCommandLauncher() : new Java13CommandLauncher();
037    }
038
039    private CommandLauncherFactory() {
040    }
041}