001    /*
002     * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS HEADER.
003     *
004     * Copyright (c) 1997-2010 Oracle and/or its affiliates. All rights reserved.
005     *
006     * The contents of this file are subject to the terms of either the GNU
007     * General Public License Version 2 only ("GPL") or the Common Development
008     * and Distribution License("CDDL") (collectively, the "License").  You
009     * may not use this file except in compliance with the License.  You can
010     * obtain a copy of the License at
011     * https://glassfish.dev.java.net/public/CDDL+GPL_1_1.html
012     * or packager/legal/LICENSE.txt.  See the License for the specific
013     * language governing permissions and limitations under the License.
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021     * file that accompanied this code.
022     *
023     * Modifications:
024     * If applicable, add the following below the License Header, with the fields
025     * enclosed by brackets [] replaced by your own identifying information:
026     * "Portions Copyright [year] [name of copyright owner]"
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032     * Version 2] license."  If you don't indicate a single choice of license, a
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038     * holder.
039     */
040    
041    package com.sun.enterprise.admin.cli;
042    
043    import com.sun.enterprise.universal.process.ProcessStreamDrainer;
044    
045    /**
046     *  CLIProcessExecutor
047     *  A simple process executor class that is used by CLI.
048     *  @author  jane.young@sun.com
049     */
050    public class CLIProcessExecutor {
051    
052        public CLIProcessExecutor() {
053            process = null;
054        }
055    
056        /**
057         * This method invokes the runtime exec
058         * @param cmd the command to execute
059         * @param wait if true, wait for process to end.
060         * @exception Exception
061         */
062        public void execute(String name, String[] cmd, boolean wait)
063                                    throws Exception {
064            process = Runtime.getRuntime().exec(cmd);
065            ProcessStreamDrainer.redirect(name, process);
066    
067            try {
068                if (wait) {
069                    process.waitFor();
070                }
071            } catch (InterruptedException ie) {
072            }
073        }
074    
075        /**
076         * return the exit value of this process.
077         * if process is null, then there is no process running
078         * therefore the return value is 0.
079         */
080        public int exitValue() {
081            if (process == null)
082                return -1;
083            return process.exitValue();
084        }
085    
086        private Process process;
087    }