001 /*
002 * SonarQube, open source software quality management tool.
003 * Copyright (C) 2008-2014 SonarSource
004 * mailto:contact AT sonarsource DOT com
005 *
006 * SonarQube is free software; you can redistribute it and/or
007 * modify it under the terms of the GNU Lesser General Public
008 * License as published by the Free Software Foundation; either
009 * version 3 of the License, or (at your option) any later version.
010 *
011 * SonarQube is distributed in the hope that it will be useful,
012 * but WITHOUT ANY WARRANTY; without even the implied warranty of
013 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
014 * Lesser General Public License for more details.
015 *
016 * You should have received a copy of the GNU Lesser General Public License
017 * along with this program; if not, write to the Free Software Foundation,
018 * Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.
019 */
020 package org.sonar.process.monitor;
021
022 import org.apache.commons.lang.StringUtils;
023 import org.slf4j.LoggerFactory;
024 import org.sonar.process.ProcessCommands;
025 import org.sonar.process.ProcessEntryPoint;
026 import org.sonar.process.ProcessUtils;
027
028 import java.io.File;
029 import java.io.FileOutputStream;
030 import java.io.OutputStream;
031 import java.util.ArrayList;
032 import java.util.Arrays;
033 import java.util.List;
034 import java.util.Properties;
035
036 public class JavaProcessLauncher {
037
038 private final Timeouts timeouts;
039
040 public JavaProcessLauncher(Timeouts timeouts) {
041 this.timeouts = timeouts;
042 }
043
044 ProcessRef launch(JavaCommand command) {
045 Process process = null;
046 try {
047 // cleanup existing monitor files
048 ProcessCommands commands = new ProcessCommands(command.getTempDir(), command.getKey());
049 commands.prepare();
050
051 ProcessBuilder processBuilder = create(command);
052 LoggerFactory.getLogger(getClass()).info("Launch process[{}]: {}",
053 command.getKey(), StringUtils.join(processBuilder.command(), " "));
054 process = processBuilder.start();
055 StreamGobbler inputGobbler = new StreamGobbler(process.getInputStream(), command.getKey());
056 inputGobbler.start();
057
058 return new ProcessRef(command.getKey(), commands, process, inputGobbler);
059
060 } catch (Exception e) {
061 // just in case
062 ProcessUtils.sendKillSignal(process);
063 throw new IllegalStateException("Fail to launch " + command.getKey(), e);
064 }
065 }
066
067 private ProcessBuilder create(JavaCommand javaCommand) {
068 List<String> commands = new ArrayList<String>();
069 commands.add(buildJavaPath());
070 commands.addAll(javaCommand.getJavaOptions());
071 // TODO warning - does it work if temp dir contains a whitespace ?
072 commands.add(String.format("-Djava.io.tmpdir=%s", javaCommand.getTempDir().getAbsolutePath()));
073 commands.addAll(buildClasspath(javaCommand));
074 commands.add(javaCommand.getClassName());
075 commands.add(buildPropertiesFile(javaCommand).getAbsolutePath());
076
077 ProcessBuilder processBuilder = new ProcessBuilder();
078 processBuilder.command(commands);
079 processBuilder.directory(javaCommand.getWorkDir());
080 processBuilder.environment().putAll(javaCommand.getEnvVariables());
081 processBuilder.redirectErrorStream(true);
082 return processBuilder;
083 }
084
085 private String buildJavaPath() {
086 String separator = System.getProperty("file.separator");
087 return new File(new File(System.getProperty("java.home")),
088 "bin" + separator + "java").getAbsolutePath();
089 }
090
091 private List<String> buildClasspath(JavaCommand javaCommand) {
092 return Arrays.asList("-cp", StringUtils.join(javaCommand.getClasspath(), System.getProperty("path.separator")));
093 }
094
095 private File buildPropertiesFile(JavaCommand javaCommand) {
096 File propertiesFile = null;
097 try {
098 propertiesFile = File.createTempFile("sq-process", "properties");
099 Properties props = new Properties();
100 props.putAll(javaCommand.getArguments());
101 props.setProperty(ProcessEntryPoint.PROPERTY_PROCESS_KEY, javaCommand.getKey());
102 props.setProperty(ProcessEntryPoint.PROPERTY_TERMINATION_TIMEOUT, String.valueOf(timeouts.getTerminationTimeout()));
103 props.setProperty(ProcessEntryPoint.PROPERTY_SHARED_PATH, javaCommand.getTempDir().getAbsolutePath());
104 OutputStream out = new FileOutputStream(propertiesFile);
105 props.store(out, String.format("Temporary properties file for command [%s]", javaCommand.getKey()));
106 out.close();
107 return propertiesFile;
108 } catch (Exception e) {
109 throw new IllegalStateException("Cannot write temporary settings to " + propertiesFile, e);
110 }
111 }
112 }