001: /*
002: * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS HEADER.
003: *
004: * Copyright 1997-2007 Sun Microsystems, Inc. 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
008: * Development and Distribution License("CDDL") (collectively, the
009: * "License"). You may not use this file except in compliance with the
010: * License. You can obtain a copy of the License at
011: * http://www.netbeans.org/cddl-gplv2.html
012: * or nbbuild/licenses/CDDL-GPL-2-CP. See the License for the
013: * specific language governing permissions and limitations under the
014: * License. When distributing the software, include this License Header
015: * Notice in each file and include the License file at
016: * nbbuild/licenses/CDDL-GPL-2-CP. Sun designates this
017: * particular file as subject to the "Classpath" exception as provided
018: * by Sun in the GPL Version 2 section of the License file that
019: * accompanied this code. If applicable, add the following below the
020: * License Header, with the fields enclosed by brackets [] replaced by
021: * your own identifying information:
022: * "Portions Copyrighted [year] [name of copyright owner]"
023: *
024: * Contributor(s):
025: *
026: * The Original Software is NetBeans. The Initial Developer of the Original
027: * Software is Sun Microsystems, Inc. Portions Copyright 1997-2007 Sun
028: * Microsystems, Inc. All Rights Reserved.
029: *
030: * If you wish your version of this file to be governed by only the CDDL
031: * or only the GPL Version 2, indicate your decision by adding
032: * "[Contributor] elects to include this software in this distribution
033: * under the [CDDL or GPL Version 2] license." If you do not indicate a
034: * single choice of license, a recipient has the option to distribute
035: * your version of this file under either the CDDL, the GPL Version 2 or
036: * to extend the choice of license to its licensees as provided above.
037: * However, if you add GPL Version 2 code and therefore, elected the GPL
038: * Version 2 license, then the option applies only if the new code is
039: * made subject to such option by the copyright holder.
040: */
041:
042: package org.netbeans.xtest.util;
043:
044: import java.io.File;
045: import java.io.IOException;
046:
047: /**
048: * NativeKill.java
049: *
050: * methods in this class are able to run and execute native kill utility on all platforms
051: * (on windows only with supplied exe utility)
052: * Created on April 16, 2002, 6:10 PM
053: *
054: * @author mb115822
055: */
056: public class NativeKill {
057:
058: /** Creates a new instance of NativeKill */
059: public NativeKill() {
060: }
061:
062: private static final int SIGKILL = 9;
063: private static final int SIGQUIT = 3;
064:
065: /** Execute given kill command.
066: * @param killCommand command to execute
067: * @return true if it succeeds, false otherwise
068: * @throws java.io.IOException
069: */
070: private static boolean executeKillCommand(String killCommand)
071: throws IOException {
072: try {
073: Process kill = Runtime.getRuntime().exec(killCommand);
074: kill.waitFor();
075: int exitValue = kill.exitValue();
076: if (exitValue == 0) {
077: return true;
078: } else {
079: return false;
080: }
081: } catch (InterruptedException ie) {
082: System.out.println("InterruptedException when killing:"
083: + ie);
084: }
085: return false;
086: }
087:
088: /** Execute kill command given as array. It is needed to execute shell
089: * command with pipes on unix.
090: * @param killCommand command to execute
091: * @return true if it succeeds, false otherwise
092: * @throws java.io.IOException
093: */
094: private static boolean executeKillCommand(String[] killCommand)
095: throws IOException {
096: try {
097: Process kill = Runtime.getRuntime().exec(killCommand);
098: kill.waitFor();
099: int exitValue = kill.exitValue();
100: if (exitValue == 0) {
101: return true;
102: } else {
103: return false;
104: }
105: } catch (InterruptedException ie) {
106: System.out.println("InterruptedException when killing:"
107: + ie);
108: }
109: return false;
110: }
111:
112: /** Call kill command on Unix.
113: * @param pid pid of process to send signal to
114: * @param signal signal number
115: * @return true if it succeeds, false otherwise
116: * @throws java.io.IOException
117: */
118: private static boolean killOnUnix(long pid, int signal)
119: throws IOException {
120: /* Workaround for issue 6624838. When fixed it is enough to have just
121: * String killCommand = "kill -"+signal+" "+pid;
122: * return executeKillCommand(killCommand);
123: */
124: String killCommand = "kill -" + signal + " " + pid;
125: if (signal == SIGKILL) {
126: return executeKillCommand(killCommand);
127: }
128: String killTreeCommand = "kill -"
129: + signal
130: + " `pstree -pA "
131: + pid
132: + " | head -n 1 | tr -d '[:alpha:]' | tr -d '+-' | tr '()' ' '`";
133: String[] shellCommand = { "/bin/sh", "-c", killTreeCommand };
134: if (!executeKillCommand(shellCommand)) {
135: // if killtree failed do just regular kill
136: System.out.println("killtree command failed: \n"
137: + killTreeCommand);
138: return executeKillCommand(killCommand);
139: } else {
140: return true;
141: }
142: }
143:
144: // call kill.exe pid utilitity supplied with xtest on windows
145: private static boolean killOnWindows(long pid, int signal)
146: throws IOException {
147: // need to do !!!
148: String xtestHome = System.getProperty("xtest.home");
149: if (xtestHome != null) {
150: File killFile = new File(xtestHome, "lib/kill.exe");
151: //if (killFile.isFile()) {
152: String killPath = killFile.getAbsolutePath();
153: String killCommand = killPath + " -" + signal + " " + pid;
154: return executeKillCommand(killCommand);
155: //}
156: } else {
157: throw new IOException(
158: "xtest.home system property not set - cannot find kill distributed with XTest on windows");
159: }
160: }
161:
162: /*
163: * kills process with given pid
164: */
165: private static boolean killProcess(long pid, int signal) {
166: try {
167: if (System.getProperty("os.name").toUpperCase().indexOf(
168: "WINDOWS") > -1) {
169: return killOnWindows(pid, signal);
170: } else {
171: return killOnUnix(pid, signal);
172: }
173: } catch (IOException ioe) {
174: System.out
175: .println("Kill command not found on your computer");
176: System.out.println(ioe);
177: }
178: // not supported platform - let's return just false
179: // but I should evaluate throwing an Exception !!!
180: return false;
181:
182: }
183:
184: /*
185: * kills process with given pid
186: */
187: public static boolean killProcess(long pid) {
188: return killProcess(pid, SIGKILL);
189: }
190:
191: /*
192: * thread dump process with given pid
193: */
194: public static boolean dumpProcess(long pid) {
195: return killProcess(pid, SIGQUIT);
196: }
197:
198: }
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