/*
* SonarQube, open source software quality management tool.
* Copyright (C) 2008-2014 SonarSource
* mailto:contact AT sonarsource DOT com
*
* SonarQube is free software; you can redistribute it and/or
* modify it under the terms of the GNU Lesser General Public
* License as published by the Free Software Foundation; either
* version 3 of the License, or (at your option) any later version.
*
* SonarQube is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
* Lesser General Public License for more details.
*
* You should have received a copy of the GNU Lesser General Public License
* along with this program; if not, write to the Free Software Foundation,
* Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.
*/
package org.sonar.process.monitor;
import org.apache.commons.lang.StringUtils;
import org.slf4j.LoggerFactory;
import org.sonar.process.ProcessCommands;
import org.sonar.process.ProcessEntryPoint;
import org.sonar.process.ProcessUtils;
import java.io.File;
import java.io.FileOutputStream;
import java.io.OutputStream;
import java.util.ArrayList;
import java.util.Arrays;
import java.util.List;
import java.util.Properties;
public class JavaProcessLauncher {
private final Timeouts timeouts;
public JavaProcessLauncher(Timeouts timeouts) {
this.timeouts = timeouts;
}
ProcessRef launch(JavaCommand command) {
Process process = null;
try {
// cleanup existing monitor files
ProcessCommands commands = new ProcessCommands(command.getTempDir(), command.getKey());
commands.prepare();
ProcessBuilder processBuilder = create(command);
LoggerFactory.getLogger(getClass()).info("Launch process[{}]: {}",
command.getKey(), StringUtils.join(processBuilder.command(), " "));
process = processBuilder.start();
StreamGobbler inputGobbler = new StreamGobbler(process.getInputStream(), command.getKey());
inputGobbler.start();
return new ProcessRef(command.getKey(), commands, process, inputGobbler);
} catch (Exception e) {
// just in case
ProcessUtils.sendKillSignal(process);
throw new IllegalStateException("Fail to launch " + command.getKey(), e);
}
}
private ProcessBuilder create(JavaCommand javaCommand) {
List<String> commands = new ArrayList<String>();
commands.add(buildJavaPath());
commands.addAll(javaCommand.getJavaOptions());
// TODO warning - does it work if temp dir contains a whitespace ?
commands.add(String.format("-Djava.io.tmpdir=%s", javaCommand.getTempDir().getAbsolutePath()));
commands.addAll(buildClasspath(javaCommand));
commands.add(javaCommand.getClassName());
commands.add(buildPropertiesFile(javaCommand).getAbsolutePath());
ProcessBuilder processBuilder = new ProcessBuilder();
processBuilder.command(commands);
processBuilder.directory(javaCommand.getWorkDir());
processBuilder.environment().putAll(javaCommand.getEnvVariables());
processBuilder.redirectErrorStream(true);
return processBuilder;
}
private String buildJavaPath() {
String separator = System.getProperty("file.separator");
return new File(new File(System.getProperty("java.home")),
"bin" + separator + "java").getAbsolutePath();
}
private List<String> buildClasspath(JavaCommand javaCommand) {
return Arrays.asList("-cp", StringUtils.join(javaCommand.getClasspath(), System.getProperty("path.separator")));
}
private File buildPropertiesFile(JavaCommand javaCommand) {
File propertiesFile = null;
try {
propertiesFile = File.createTempFile("sq-process", "properties");
Properties props = new Properties();
props.putAll(javaCommand.getArguments());
props.setProperty(ProcessEntryPoint.PROPERTY_PROCESS_KEY, javaCommand.getKey());
props.setProperty(ProcessEntryPoint.PROPERTY_TERMINATION_TIMEOUT, String.valueOf(timeouts.getTerminationTimeout()));
props.setProperty(ProcessEntryPoint.PROPERTY_SHARED_PATH, javaCommand.getTempDir().getAbsolutePath());
OutputStream out = new FileOutputStream(propertiesFile);
props.store(out, String.format("Temporary properties file for command [%s]", javaCommand.getKey()));
out.close();
return propertiesFile;
} catch (Exception e) {
throw new IllegalStateException("Cannot write temporary settings to " + propertiesFile, e);
}
}
}