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/*
* SonarQube Runner - API
* Copyright (C) 2011 SonarSource
* [email protected]
*
* This program 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.
*
* This program 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 02
*/
package org.sonar.runner.api;
import org.apache.commons.io.FileUtils;
import org.apache.commons.io.IOUtils;
import org.sonar.runner.impl.BatchLauncherMain;
import org.sonar.runner.impl.JarExtractor;
import javax.annotation.Nullable;
import java.io.File;
import java.io.FileOutputStream;
import java.io.OutputStream;
import java.util.ArrayList;
import java.util.Arrays;
import java.util.HashMap;
import java.util.List;
import java.util.Map;
/**
* Runner executed in a new JVM.
*
* @since 2.2
*/
public class ForkedRunner extends Runner {
private static final int ONE_DAY_IN_MILLISECONDS = 24 * 60 * 60 * 1000;
private final Map jvmEnvVariables = new HashMap();
private final List jvmArguments = new ArrayList();
private String javaExecutable;
private StreamConsumer stdOut = null, stdErr = null;
private final JarExtractor jarExtractor;
private final CommandExecutor commandExecutor;
private ProcessMonitor processMonitor;
ForkedRunner(JarExtractor jarExtractor, CommandExecutor commandExecutor, @Nullable ProcessMonitor processMonitor) {
this.jarExtractor = jarExtractor;
this.commandExecutor = commandExecutor;
this.processMonitor = processMonitor;
}
ForkedRunner(JarExtractor jarExtractor, CommandExecutor commandExecutor) {
this(jarExtractor, commandExecutor, null);
}
/**
* Create new instance. Never return null.
*/
public static ForkedRunner create() {
return new ForkedRunner(new JarExtractor(), CommandExecutor.create());
}
/**
* Create new instance. Never return null.
*/
public static ForkedRunner create(ProcessMonitor processMonitor) {
return new ForkedRunner(new JarExtractor(), CommandExecutor.create(), processMonitor);
}
/**
* Path to the java executable. The JVM of the client app is used by default
* (see the system property java.home)
*/
public ForkedRunner setJavaExecutable(@Nullable String s) {
this.javaExecutable = s;
return this;
}
public List jvmArguments() {
return new ArrayList(jvmArguments);
}
/**
* See {@link #addJvmArguments(java.util.List)}
*/
public ForkedRunner addJvmArguments(String... s) {
return addJvmArguments(Arrays.asList(s));
}
/**
* JVM arguments, for example "-Xmx512m"
*/
public ForkedRunner addJvmArguments(List args) {
jvmArguments.addAll(args);
return this;
}
/**
* Set a JVM environment variable. By default no variables are set.
*/
public ForkedRunner setJvmEnvVariable(String key, String value) {
jvmEnvVariables.put(key, value);
return this;
}
/**
* Add some JVM environment variables. By default no variables are set.
*/
public ForkedRunner addJvmEnvVariables(Map map) {
jvmEnvVariables.putAll(map);
return this;
}
/**
* Subscribe to the standard output. By default output is {@link System.out}
*/
public ForkedRunner setStdOut(@Nullable StreamConsumer stream) {
this.stdOut = stream;
return this;
}
/**
* Subscribe to the error output. By default output is {@link System.err}
*/
public ForkedRunner setStdErr(@Nullable StreamConsumer stream) {
this.stdErr = stream;
return this;
}
@Override
protected void doExecute() {
ForkCommand forkCommand = createCommand();
try {
fork(forkCommand);
} finally {
deleteTempFiles(forkCommand);
}
}
ForkCommand createCommand() {
File propertiesFile = writeProperties();
File jarFile = jarExtractor.extractToTemp("sonar-runner-impl");
if (javaExecutable == null) {
javaExecutable = new Os().thisJavaExe().getAbsolutePath();
}
Command command = Command.builder()
.setExecutable(javaExecutable)
.addEnvVariables(jvmEnvVariables)
.addArguments(jvmArguments)
.addArguments("-cp", jarFile.getAbsolutePath(), BatchLauncherMain.class.getName(), propertiesFile.getAbsolutePath())
.build();
return new ForkCommand(command, jarFile, propertiesFile);
}
private File writeProperties() {
OutputStream output = null;
try {
File file = File.createTempFile("sonar-project", ".properties");
output = new FileOutputStream(file);
properties().store(output, "Generated by sonar-runner");
return file;
} catch (Exception e) {
throw new IllegalStateException("Fail to export sonar-runner properties", e);
} finally {
IOUtils.closeQuietly(output);
}
}
private void deleteTempFiles(ForkCommand forkCommand) {
FileUtils.deleteQuietly(forkCommand.jarFile);
FileUtils.deleteQuietly(forkCommand.propertiesFile);
}
private void fork(ForkCommand forkCommand) {
if (stdOut == null) {
stdOut = new PrintStreamConsumer(System.out);
}
if (stdErr == null) {
stdErr = new PrintStreamConsumer(System.err);
}
int status = commandExecutor.execute(forkCommand.command, stdOut, stdErr, ONE_DAY_IN_MILLISECONDS, processMonitor);
if (status != 0) {
if (processMonitor != null && processMonitor.stop()) {
stdOut.consumeLine(String.format("SonarQube Runner was stopped [status=%s]", status));
}
else {
throw new IllegalStateException("Error status [command: " + forkCommand.command + "]: " + status);
}
}
}
static class ForkCommand {
Command command;
File jarFile;
File propertiesFile;
private ForkCommand(Command command, File jarFile, File propertiesFile) {
this.command = command;
this.jarFile = jarFile;
this.propertiesFile = propertiesFile;
}
}
}
