2003-01-27 09:27:53 -06:00
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/*************************************************************************
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*
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2005-09-08 11:20:09 -05:00
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* OpenOffice.org - a multi-platform office productivity suite
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2003-01-27 09:27:53 -06:00
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*
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2005-09-08 11:20:09 -05:00
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* $RCSfile: ProcessHandler.java,v $
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2003-01-27 09:27:53 -06:00
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*
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2008-01-14 06:21:18 -06:00
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* $Revision: 1.12 $
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2003-01-27 09:27:53 -06:00
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*
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2008-01-14 06:21:18 -06:00
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* last change: $Author: ihi $ $Date: 2008-01-14 13:21:18 $
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2003-01-27 09:27:53 -06:00
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*
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2005-09-08 11:20:09 -05:00
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* The Contents of this file are made available subject to
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* the terms of GNU Lesser General Public License Version 2.1.
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2003-01-27 09:27:53 -06:00
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*
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*
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2005-09-08 11:20:09 -05:00
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* GNU Lesser General Public License Version 2.1
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* =============================================
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* Copyright 2005 by Sun Microsystems, Inc.
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* 901 San Antonio Road, Palo Alto, CA 94303, USA
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2003-01-27 09:27:53 -06:00
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*
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2005-09-08 11:20:09 -05:00
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* This library is free software; you can redistribute it and/or
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* modify it under the terms of the GNU Lesser General Public
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* License version 2.1, as published by the Free Software Foundation.
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2003-01-27 09:27:53 -06:00
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*
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2005-09-08 11:20:09 -05:00
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* This library is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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* Lesser General Public License for more details.
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2003-01-27 09:27:53 -06:00
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*
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2005-09-08 11:20:09 -05:00
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* You should have received a copy of the GNU Lesser General Public
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* License along with this library; if not, write to the Free Software
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* Foundation, Inc., 59 Temple Place, Suite 330, Boston,
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* MA 02111-1307 USA
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2003-01-27 09:27:53 -06:00
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*
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************************************************************************/
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package helper;
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import java.io.InputStream;
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import java.io.File;
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import java.io.FileFilter;
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import java.util.ArrayList;
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import java.io.PrintWriter;
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import java.io.PrintStream;
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import java.io.LineNumberReader;
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import java.io.InputStreamReader;
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import java.io.OutputStreamWriter;
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/**
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* Class collect information from input stream in
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* background (sparate thread) and outputs it to
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* some log stream. I helps to avoid buffer overflow
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* when output stream has small buffer size (e.g.
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* in case when handling stdout from external
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* <code>Process</code>)
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*
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* This class is currently used by ProcesHandler
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* internally only.
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*/
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class Pump extends Thread {
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private LineNumberReader reader;
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private String pref ;
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private StringBuffer buf = new StringBuffer(256);
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private PrintWriter log ;
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/**
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* Creates Pump for specified <code>InputStream</code>.
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* This Pump also synchronously output text read to
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* log by prefixed lines. Constructor immediately
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* starts reading in a separate thread.
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*
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* @param is Stream which requires permanent reading.
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* @param log Writer where prefixed text lines to be output
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* @param outPrefix A prefix which is printed at the
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* beginning of each output line.
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*/
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public Pump(InputStream is, PrintWriter log, String outPrefix) {
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this.pref = outPrefix == null ? "" : outPrefix ;
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reader = new LineNumberReader(new InputStreamReader(is));
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this.log = log ;
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start() ;
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}
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public void run() {
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try {
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String line = reader.readLine() ;
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while (line != null) {
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log.println(pref + line);
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log.flush();
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buf.append(line).append('\n');
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line = reader.readLine() ;
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}
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} catch (java.io.IOException e) {
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log.println(pref + "Exception occured: " + e) ;
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}
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}
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/**
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* Returns the text collected from input stream.
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*/
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public String getStringBuffer() {
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return buf.toString();
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}
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}
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/**
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* Class provides convenient way for running external program
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* handle its standard streams, control execution and check results.
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* Instance of this class must be created only for a single
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* execution. If you need to execute the same command again you
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* should create a new instance for this.
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*/
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public class ProcessHandler {
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private String cmdLine;
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private String[] cmdLineArray;
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private String[] envVars = null;
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private File workDir = null;
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private PrintWriter log;
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private int exitValue = -1;
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private boolean isFinished = false;
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private boolean isStarted = false;
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private boolean mbTimedOut = false;
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private long mTimeOut = 0;
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private String stdInBuff = "";
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private Pump stdout = null ;
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private Pump stderr = null ;
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private PrintStream stdIn = null ;
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private Process proc = null ;
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2003-11-18 09:14:43 -06:00
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/**
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* Creates instance with specified external command.
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* Debug info and output
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* of external command is printed to stdout.
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*/
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public ProcessHandler(String cmdLine) {
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this(cmdLine, null, null, null, 0);
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}
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2005-11-02 10:43:42 -06:00
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/**
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* Creates instance with specified external command
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* including parameters as an array.
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* Debug info and output
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* of external command is printed to stdout.
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* @param cmdLines
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2005-11-02 10:43:42 -06:00
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*/
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public ProcessHandler(String[] cmdLines)
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{
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this(null, null, null, null, 0);
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cmdLineArray = cmdLines;
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}
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2005-11-02 10:43:42 -06:00
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/**
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* Creates instance with specified external command
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* including parameters as an array, with environment
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* variables.
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* Debug info and output
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* of external command is printed to stdout.
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2008-01-14 06:21:18 -06:00
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* @param cmdLines
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* @param envVars
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2005-11-02 10:43:42 -06:00
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* @see java.lang.Runtime exec(String[], String[])
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*/
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public ProcessHandler(String[] cmdLines, String[] envVars)
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{
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this(null, null, null, envVars, 0);
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cmdLineArray = cmdLines;
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}
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2008-01-14 06:21:18 -06:00
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/**
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* Creates instance with specified external command
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* including parameters as an array, with environment
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* variables. The command will be started in workDir.
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* Debug info and output
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* of external command is printed to stdout.
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* @param cmdLines
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* @param workDir
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*/
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public ProcessHandler(String[] cmdLines, File workDir) {
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this(null, null, workDir, null, 0);
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cmdLineArray = cmdLines;
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}
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2003-01-27 09:27:53 -06:00
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/**
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* Creates instance with specified external command and
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2008-01-14 06:21:18 -06:00
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* log stream where debug info and output
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* of external command is printed out. The command will be started in workDir.
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* @param cmdLines
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* @param log
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* @param workDir
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*/
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public ProcessHandler(String[] cmdLines, PrintWriter log, File workDir) {
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this(null, log, workDir, null, 0);
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cmdLineArray = cmdLines;
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}
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/**
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* Creates instance with specified external command and
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* log stream where debug info and output
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* of external command is printed out.
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2003-01-27 09:27:53 -06:00
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*/
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public ProcessHandler(String cmdLine, PrintWriter log) {
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2003-11-18 09:14:43 -06:00
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this(cmdLine, log, null, null, 0);
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2003-01-27 09:27:53 -06:00
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}
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2003-11-18 09:14:43 -06:00
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2003-01-27 09:27:53 -06:00
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/**
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2003-11-18 09:14:43 -06:00
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* Creates instance with specified external command which
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* will be executed in the some work directory.
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2003-01-27 09:27:53 -06:00
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* Debug info and output
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2003-11-18 09:14:43 -06:00
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* of external commandis printed to stdout.
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2003-01-27 09:27:53 -06:00
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*/
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2003-11-18 09:14:43 -06:00
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public ProcessHandler(String cmdLine, File workDir) {
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this(cmdLine, null, workDir, null, 0);
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2003-01-27 09:27:53 -06:00
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}
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2003-11-18 09:14:43 -06:00
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2008-01-14 06:21:18 -06:00
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/**
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* Creates instance with specified external command which
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* will be executed in the some work directory.
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* Debug info and output printed in log stream.
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*/
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public ProcessHandler(String cmdLine, PrintWriter log, File workDir) {
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this(cmdLine, log, workDir, null, 0);
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}
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2003-01-27 09:27:53 -06:00
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/**
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* Creates instance with specified external command which
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* will be executed in the some work directory and
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* log stream where debug info and output
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* of external command is printed .
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* The specified environment variables are set for the new process.
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* If log stream is null, logging is printed to stdout.
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2008-01-14 06:21:18 -06:00
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* @param cmdLine
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* @param log
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* @param workDir
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* @param envVars
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2003-01-27 09:27:53 -06:00
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*/
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public ProcessHandler(String cmdLine, PrintWriter log,
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File workDir, String[] envVars) {
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2003-11-18 09:14:43 -06:00
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this(cmdLine, log, workDir, envVars, 0);
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}
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/**
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* Creates instance with specified external command which
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* will be executed in the some work directory and
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*
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2008-01-14 06:21:18 -06:00
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* @param cmdLine the command to be executed
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2003-11-18 09:14:43 -06:00
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* @param log log stream where debug info and output
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* of external command is printed .
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* @param workDir The working directory of the new process
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* @param envVars The specified environment variables are
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* set for the new process.
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* If log stream is null, logging is printed to stdout.
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* @param timeOut When started sychronisly, the maximum time the
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* process will live. When the process being destroyed
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* a log will be written out. It can be asked on
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* <code>isTimedOut()</code> if it has been terminated.
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*
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* timeOut > 0
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* Waits specified time in miliSeconds for
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* process to exit and return its status.
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*
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* timeOut = 0
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* Waits for the process to end regulary
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*
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* timeOut < 0
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* Kills the process immediately
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*
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*
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*/
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public ProcessHandler(String cmdLine, PrintWriter log,
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File workDir, String[] envVars, long timeOut) {
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this.cmdLine = cmdLine ;
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this.workDir = workDir;
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this.log = log;
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this.cmdLine = cmdLine ;
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this.envVars = envVars;
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if (log == null)
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this.log = new PrintWriter(new OutputStreamWriter(System.out));
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else
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this.log = log;
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2003-11-18 09:14:43 -06:00
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this.mTimeOut = timeOut;
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2003-01-27 09:27:53 -06:00
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}
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2003-11-18 09:14:43 -06:00
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public boolean isTimedOut(){
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return mbTimedOut;
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}
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private void setTimedOut(boolean bTimedOut){
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mbTimedOut = bTimedOut;
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2003-01-27 09:27:53 -06:00
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}
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/**
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* Executes the command and returns only when the process
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* exits.
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*
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* @return <code>true</code> if process was successfully
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* started and correcly exits (exit code doesn't affect
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* to this result).
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*/
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public boolean executeSynchronously() {
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execute() ;
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return waitFor(mTimeOut) ;
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}
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/**
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* Executes the command immediately returns. The process
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* remains in running state. Control of its state should
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* be made by <code>waitFor</code> methods.
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*
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* @return <code>true</code> if process was successfully
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* started.
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*/
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public boolean executeAsynchronously() {
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execute() ;
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return isStarted() ;
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}
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2004-03-19 07:29:29 -06:00
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public synchronized void kill() {
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if (!isStarted()) return;
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2004-03-19 07:29:29 -06:00
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boolean exit = false;
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int counter=1;
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while(counter < 3 && !exit) {
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2004-03-19 07:29:29 -06:00
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proc.destroy();
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try{
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Thread.sleep(5000*counter);
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}
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catch(java.lang.InterruptedException e){}
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try {
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int exitValue = proc.exitValue();
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2005-06-14 09:42:28 -05:00
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if (exitValue<1)
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exit = true;
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else
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counter++;
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2004-03-19 07:29:29 -06:00
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System.out.println("# Office closed with exit code "+exitValue);
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}
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catch(java.lang.IllegalThreadStateException e) {
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if (counter<3) {
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System.out.println("# Couldn't close office after "+counter+" attempts, trying again");
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}
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counter++;
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}
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}
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2003-01-27 09:27:53 -06:00
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isStarted = false;
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}
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protected void execute() {
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if (isStarted()) {
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throw new RuntimeException(
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|
|
"The process handler has already been executed.") ;
|
|
|
|
}
|
|
|
|
Runtime runtime = Runtime.getRuntime() ;
|
|
|
|
try {
|
2004-12-10 10:00:25 -06:00
|
|
|
if (cmdLine == null)
|
|
|
|
{
|
|
|
|
log.print("Starting command from array: " );
|
|
|
|
for(int i = 0;i<cmdLineArray.length;i++)
|
|
|
|
{
|
|
|
|
log.print(cmdLineArray[i]);
|
|
|
|
log.print(" ");
|
|
|
|
}
|
|
|
|
log.println();
|
|
|
|
proc = runtime.exec(cmdLineArray, envVars);
|
|
|
|
}
|
|
|
|
else
|
|
|
|
{
|
|
|
|
log.println("Starting command: " + cmdLine) ;
|
|
|
|
if (workDir != null) {
|
2008-01-14 06:21:18 -06:00
|
|
|
log.println("Starting command: " + cmdLine + " " + workDir.getAbsolutePath()) ;
|
2004-12-10 10:00:25 -06:00
|
|
|
proc = runtime.exec(cmdLine, envVars, workDir) ;
|
|
|
|
} else {
|
|
|
|
proc = runtime.exec(cmdLine, envVars) ;
|
|
|
|
}
|
2003-01-27 09:27:53 -06:00
|
|
|
}
|
|
|
|
isStarted = true ;
|
2004-12-10 10:00:25 -06:00
|
|
|
} catch (java.io.IOException e)
|
|
|
|
{
|
|
|
|
if (cmdLine == null)
|
|
|
|
{
|
|
|
|
log.println("The command array can't be started: " + e);
|
|
|
|
}
|
|
|
|
else
|
|
|
|
{
|
|
|
|
log.println("The command " + cmdLine + " can't be started: " + e);
|
|
|
|
}
|
2003-01-27 09:27:53 -06:00
|
|
|
return;
|
|
|
|
}
|
|
|
|
stdout = new Pump(proc.getInputStream(), log, "out > ");
|
|
|
|
stderr = new Pump(proc.getErrorStream(), log, "err > ");
|
|
|
|
stdIn = new PrintStream(proc.getOutputStream()) ;
|
|
|
|
|
|
|
|
flushInput() ;
|
|
|
|
}
|
|
|
|
|
|
|
|
/**
|
|
|
|
* This method is useful when the process was executed
|
|
|
|
* asynchronously. Waits for process to exit and return
|
|
|
|
* its result.
|
|
|
|
*
|
|
|
|
* @return <code>true</code> if process correctly exited
|
|
|
|
* (exit code doesn't affect to this result).
|
|
|
|
*/
|
|
|
|
public boolean waitFor() {
|
|
|
|
return waitFor(0) ;
|
|
|
|
}
|
|
|
|
|
|
|
|
/**
|
|
|
|
* This method is useful when the process was executed
|
|
|
|
* asynchronously. Waits during specified time for process
|
|
|
|
* to exit and return its status.
|
|
|
|
*
|
2003-11-18 09:14:43 -06:00
|
|
|
* @param timeOut > 0
|
|
|
|
* Waits specified time in miliSeconds for
|
|
|
|
* process to exit and return its status.
|
|
|
|
*
|
|
|
|
* = 0
|
|
|
|
* Waits for the process to end regulary
|
|
|
|
*
|
|
|
|
* < 0
|
|
|
|
* Kills the process immediately
|
|
|
|
*
|
2003-01-27 09:27:53 -06:00
|
|
|
* @return <code>true</code> if process correctly exited
|
|
|
|
* (exit code doesn't affect to this result).
|
|
|
|
*/
|
|
|
|
public boolean waitFor(long timeout) {
|
|
|
|
if (isFinished()) return true ;
|
|
|
|
if (!isStarted()) return false ;
|
|
|
|
|
|
|
|
if (timeout == 0) {
|
|
|
|
try {
|
|
|
|
proc.waitFor() ;
|
|
|
|
} catch (InterruptedException e) {
|
|
|
|
log.println("The process was interrupted: " + e);
|
|
|
|
}
|
|
|
|
isFinished = true ;
|
|
|
|
try {
|
|
|
|
exitValue = proc.exitValue() ;
|
|
|
|
} catch (IllegalThreadStateException e) {}
|
|
|
|
} else {
|
|
|
|
try {
|
|
|
|
while (!isFinished && timeout > 0) {
|
2003-11-18 09:14:43 -06:00
|
|
|
isFinished = true;
|
2003-01-27 09:27:53 -06:00
|
|
|
Thread.sleep(1000);
|
|
|
|
timeout -= 1000 ;
|
|
|
|
try {
|
2003-11-18 09:14:43 -06:00
|
|
|
exitValue = proc.exitValue(); // throws exception if not finished
|
2003-01-27 09:27:53 -06:00
|
|
|
} catch (IllegalThreadStateException e) {
|
2003-11-18 09:14:43 -06:00
|
|
|
isFinished = false;
|
2003-01-27 09:27:53 -06:00
|
|
|
}
|
|
|
|
}
|
2003-11-18 09:14:43 -06:00
|
|
|
if(timeout < 0){
|
|
|
|
setTimedOut(true);
|
|
|
|
log.println("The process has timed out!");
|
|
|
|
}
|
2003-01-27 09:27:53 -06:00
|
|
|
} catch (InterruptedException ex) {
|
|
|
|
log.println("The process was interrupted: " + ex);
|
|
|
|
}
|
|
|
|
}
|
|
|
|
|
|
|
|
if (!isFinished) {
|
2003-11-18 09:14:43 -06:00
|
|
|
log.println("Going to destroy the process!!");
|
2003-01-27 09:27:53 -06:00
|
|
|
proc.destroy();
|
2003-11-18 09:14:43 -06:00
|
|
|
log.println("Process has been destroyed!");
|
2003-01-27 09:27:53 -06:00
|
|
|
}
|
2005-02-24 10:22:10 -06:00
|
|
|
// Removed as hung up in SDK test 'PathSettings'
|
|
|
|
// try {
|
|
|
|
// stdout.join();
|
|
|
|
// stderr.join();
|
|
|
|
// } catch (InterruptedException e) {}
|
2003-01-27 09:27:53 -06:00
|
|
|
|
|
|
|
return isFinished() ;
|
|
|
|
}
|
|
|
|
|
|
|
|
protected void flushInput() {
|
|
|
|
if (stdIn == null) return ;
|
|
|
|
|
|
|
|
synchronized(stdInBuff) {
|
|
|
|
stdIn.print(stdInBuff);
|
|
|
|
stdIn.flush();
|
|
|
|
stdInBuff = "" ;
|
|
|
|
}
|
|
|
|
}
|
|
|
|
|
|
|
|
/**
|
|
|
|
* Returns the text output by external command to stdout.
|
|
|
|
*/
|
|
|
|
public String getOutputText() {
|
2003-05-27 06:03:04 -05:00
|
|
|
if (stdout == null)
|
2003-05-15 12:04:04 -05:00
|
|
|
return "";
|
|
|
|
else
|
|
|
|
return stdout.getStringBuffer();
|
2003-01-27 09:27:53 -06:00
|
|
|
}
|
|
|
|
/**
|
|
|
|
* Returns the text output by external command to stderr.
|
|
|
|
*/
|
|
|
|
public String getErrorText() {
|
2003-05-27 06:03:04 -05:00
|
|
|
if (stderr == null)
|
2003-05-15 12:04:04 -05:00
|
|
|
return "";
|
|
|
|
else
|
|
|
|
return stderr.getStringBuffer();
|
2003-01-27 09:27:53 -06:00
|
|
|
}
|
|
|
|
|
|
|
|
/**
|
|
|
|
* Prints the string specified to sdtin of external
|
|
|
|
* command. '\n' is not added so if you need you
|
|
|
|
* should terminate the string with '\n'. <p>
|
|
|
|
*
|
|
|
|
* The method can also be called before the command
|
|
|
|
* starts its execution. Then the text is buffered
|
|
|
|
* and transfered to command when it will be started.
|
|
|
|
*/
|
|
|
|
public void printInputText(String str) {
|
|
|
|
stdInBuff += str ;
|
|
|
|
flushInput();
|
|
|
|
}
|
|
|
|
|
|
|
|
/**
|
|
|
|
* Returns information about was the command started or
|
|
|
|
* not.
|
|
|
|
*
|
|
|
|
* @return <code>true</code> if the external command was
|
|
|
|
* found and successfully started.
|
|
|
|
*/
|
|
|
|
public boolean isStarted() {
|
|
|
|
return isStarted ;
|
|
|
|
}
|
|
|
|
|
|
|
|
/**
|
|
|
|
* Returns the information about the final state of command
|
|
|
|
* execution.
|
|
|
|
*
|
|
|
|
* @return <code>true</code> if the command correctly starts,
|
|
|
|
* exits and was not interrupted due to timeout.
|
|
|
|
*/
|
|
|
|
public boolean isFinished() {
|
|
|
|
return isFinished ;
|
|
|
|
}
|
|
|
|
|
|
|
|
/**
|
|
|
|
* Returns exit code of the external command.
|
|
|
|
*
|
|
|
|
* @return exit code of command if it was finished,
|
|
|
|
* -1 if not.
|
|
|
|
*/
|
|
|
|
public int getExitCode() {
|
2005-02-02 06:56:23 -06:00
|
|
|
try {
|
|
|
|
exitValue = proc.exitValue();
|
|
|
|
} catch (Exception e) {
|
|
|
|
//System.out.println("No ExitValue available");
|
|
|
|
}
|
|
|
|
|
2003-01-27 09:27:53 -06:00
|
|
|
return exitValue ;
|
|
|
|
}
|
2003-11-18 09:14:43 -06:00
|
|
|
}
|