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eXist-db NoSQL Database Core
/*
* eXist Open Source Native XML Database
* Copyright (C) 2012 The eXist Project
* http://exist-db.org
*
* 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 2
* 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 library; if not, write to the Free Software
* Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
*
* $Id$
*/
package org.exist.launcher;
import org.exist.util.ConfigurationHelper;
import javax.swing.*;
import java.io.File;
import java.io.IOException;
import java.io.InputStream;
import java.io.InputStreamReader;
import java.nio.file.Files;
import java.nio.file.Path;
import java.nio.file.Paths;
import java.util.*;
import static java.nio.charset.StandardCharsets.UTF_8;
import static org.exist.launcher.ConfigurationUtility.LAUNCHER_PROPERTIES_FILE_NAME;
/**
* A wrapper to start a Java process using start.jar with correct VM settings.
* Spawns a new Java VM using Ant. Mainly used when launching
* eXist by double clicking on start.jar.
*
* @author Tobi Krebs
* @author Wolfgang Meier
*/
public class LauncherWrapper {
private final static String LAUNCHER = org.exist.launcher.Launcher.class.getName();
private final static String OS = System.getProperty("os.name").toLowerCase();
public final static void main(String[] args) {
final LauncherWrapper wrapper = new LauncherWrapper(LAUNCHER);
if (ConfigurationUtility.isFirstStart()) {
System.out.println("First launch: opening configuration dialog");
ConfigurationDialog configDialog = new ConfigurationDialog(restart -> {
wrapper.launch();
// make sure the process dies when the dialog is closed
System.exit(0);
});
configDialog.open(true);
configDialog.requestFocus();
} else {
wrapper.launch();
}
}
protected String command;
public LauncherWrapper(String command) {
this.command = command;
}
public void launch() {
final String debugLauncher = System.getProperty("exist.debug.launcher", "false");
final Properties launcherProperties = getLauncherProperties();
final List args = new ArrayList<>();
args.add(getJavaCmd());
getJavaOpts(args, launcherProperties);
if (Boolean.parseBoolean(debugLauncher) && !"client".equals(command)) {
args.add("-Xdebug");
args.add("-Xrunjdwp:transport=dt_socket,server=y,suspend=y,address=5006");
System.out.println("Debug mode for Launcher on JDWP port 5006. Will await connection...");
}
// recreate the classpath
args.add("-cp");
args.add(getClassPath());
// call exist main with our new command
args.add("org.exist.start.Main");
args.add(command);
try {
run(args);
} catch (final IOException e) {
JOptionPane.showMessageDialog(null, e.getMessage(), "Error Running Process", JOptionPane.ERROR_MESSAGE);
}
}
private String getClassPath() {
// if we are booted using appassembler-booter, then we should use `app.class.path`
return System.getProperty("app.class.path", System.getProperty("java.class.path"));
}
private void run(final List args) throws IOException {
final StringBuilder buf = new StringBuilder("Executing: [");
for (int i = 0; i < args.size(); i++) {
buf.append('"');
buf.append(args.get(i));
buf.append('"');
if (i != args.size() - 1) {
buf.append(", ");
}
}
buf.append(']');
System.out.println(buf.toString());
final ProcessBuilder pb = new ProcessBuilder(args);
final Optional home = ConfigurationHelper.getExistHome();
pb.directory(home.orElse(Paths.get(".")).toFile());
pb.redirectErrorStream(true);
pb.inheritIO();
pb.start();
}
protected String getJavaCmd() {
final File javaHome = new File(System.getProperty("java.home"));
if (OS.startsWith("windows")) {
Path javaBin = Paths.get(javaHome.getAbsolutePath(), "bin", "javaw.exe");
if (Files.isExecutable(javaBin)) {
return '"' + javaBin.toString() + '"';
}
javaBin = Paths.get(javaHome.getAbsolutePath(), "bin", "java.exe");
if (Files.isExecutable(javaBin)) {
return '"' + javaBin.toString() + '"';
}
} else {
Path javaBin = Paths.get(javaHome.getAbsolutePath(), "bin", "java");
if (Files.isExecutable(javaBin)) {
return javaBin.toString();
}
}
return "java";
}
protected void getJavaOpts(final List args, final Properties launcherProperties) {
getLauncherOpts(args, launcherProperties);
boolean foundExistHomeSysProp = false;
final Properties sysProps = System.getProperties();
for (final Map.Entry entry : sysProps.entrySet()) {
final String key = entry.getKey().toString();
if (key.startsWith("exist.") || key.startsWith("log4j.") || key.startsWith("jetty.") || key.startsWith("app.")) {
args.add("-D" + key + "=" + entry.getValue().toString());
if (key.equals("exist.home")) {
foundExistHomeSysProp = true;
}
}
}
if (!foundExistHomeSysProp) {
args.add("-Dexist.home=\".\"");
}
if (command.equals(LAUNCHER) && "mac os x".equals(OS)) {
args.add("-Dapple.awt.UIElement=true");
}
}
protected void getLauncherOpts(final List args, final Properties launcherProperties) {
for (final String key : launcherProperties.stringPropertyNames()) {
if (key.startsWith("memory.")) {
if ("memory.max".equals(key)) {
args.add("-Xmx" + launcherProperties.getProperty(key) + 'm');
} else if ("memory.min".equals(key)) {
args.add("-Xms" + launcherProperties.getProperty(key) + 'm');
}
} else if ("vmoptions".equals(key)) {
args.add(launcherProperties.getProperty(key));
} else if (key.startsWith("vmoptions.")) {
final String os = key.substring("vmoptions.".length()).toLowerCase();
if (OS.contains(os)) {
final String value = launcherProperties.getProperty(key);
Arrays.stream(value.split("\\s+")).forEach(args::add);
}
}
}
}
public static Properties getLauncherProperties() {
final Properties launcherProperties = new Properties();
final java.nio.file.Path propFile = ConfigurationUtility.lookup(LAUNCHER_PROPERTIES_FILE_NAME, false);
InputStream is = null;
try {
if (Files.isReadable(propFile)) {
is = Files.newInputStream(propFile);
}
if (is == null) {
is = LauncherWrapper.class.getResourceAsStream(LAUNCHER_PROPERTIES_FILE_NAME);
}
if (is != null) {
launcherProperties.load(new InputStreamReader(is, UTF_8));
}
} catch (final IOException e) {
System.err.println(LAUNCHER_PROPERTIES_FILE_NAME + " not found");
} finally {
if(is != null) {
try {
is.close();
} catch(final IOException ioe) {
ioe.printStackTrace();
}
}
}
return launcherProperties;
}
}
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