/*******************************************************************************
* Copyright (c) 2000, 2003 IBM Corporation and others.
* All rights reserved. This program and the accompanying materials
* are made available under the terms of the Common Public License v1.0
* which accompanies this distribution, and is available at
* http://www.eclipse.org/legal/cpl-v10.html
*
* Contributors:
* IBM Corporation - initial API and implementation
*******************************************************************************/
package org.eclipse.core.launcher;
import java.io.*;
import java.lang.reflect.InvocationTargetException;
import java.lang.reflect.Method;
import java.net.*;
import java.text.DateFormat;
import java.text.SimpleDateFormat;
import java.util.*;
/**
* The framework to run. This is used if the bootLocation (-boot) is not specified.
* The value can be specified on the command line as -framework.
* Startup class for Eclipse. Creates a class loader using
* supplied URL of platform installation, loads and calls
* the Eclipse Boot Loader. The startup arguments are as follows:
* <dl>
* <dd>
* -application <id>: the identifier of the application to run
* </dd>
* <dd>
* -arch <architecture>: sets the processor architecture value
* </dd>
* <dd>
* -boot <location>: the location, expressed as a URL, of the platform's boot.jar.
* <i>Deprecated: replaced by -configuration</i>
* </dd>
* <dd>
* -classloaderproperties [properties file]: activates platform class loader enhancements using
* the class loader properties file at the given location, if specified. The (optional) file argument
* can be either a file path or an absolute URL.
* </dd>
* <dd>
* -configuration <location>: the location, expressed as a URL, for the Eclipse platform
* configuration file. The configuration file determines the location of the Eclipse platform, the set
* of available plug-ins, and the primary feature.
* </dd>
* <dd>
* -consolelog : enables log to the console. Handy when combined with -debug
* </dd>
* <dd>
* -data <location>: sets the workspace location and the default location for projects
* </dd>
* <dd>
* -debug [options file]: turns on debug mode for the platform and optionally specifies a location
* for the .options file. This file indicates what debug points are available for a
* plug-in and whether or not they are enabled. If a location is not specified, the platform searches
* for the .options file under the install directory.
* </dd>
* <dd>
* -dev [entries]: turns on dev mode and optionally specifies comma-separated class path entries
* which are added to the class path of each plug-in
* </dd>
* <dd>
* -feature <id>: the identifier of the primary feature. The primary feature gives the launched
* instance of Eclipse its product personality, and determines the product customization
* information.
* </dd>
* <dd>
* -keyring <location>: the location of the authorization database on disk. This argument
* has to be used together with the -password argument.
* </dd>
* <dd>
* -nl <locale>: sets the name of the locale on which Eclipse platform will run
* </dd>
* <dd>
* -nolazyregistrycacheloading : deactivates platform plug-in registry cache loading optimization.
* By default, extensions' configuration elements will be loaded from the registry cache (when
* available) only on demand, reducing memory footprint. This option will force the registry cache
* to be fully loaded at startup.
* </dd>
* <dd>
* -nopackageprefixes: deactivates classloader package prefixes optimization
* </dd>
* <dd>
* -noregistrycache: bypasses the reading and writing of an internal plug-in registry cache file
* </dd>
* <dd>
* -os <operating system>: sets the operating system value
* </dd>
* <dd>
* -password <passwd>: the password for the authorization database
* </dd>
* <dd>
* -plugins <location>: the arg is a URL pointing to a file which specs the plugin
* path for the platform. The file is in property file format where the keys are user-defined
* names and the values are comma separated lists of either explicit paths to plugin.xml
* files or directories containing plugins (e.g., .../eclipse/plugins).
* <i>Deprecated: replaced by -configuration</i>
* </dd>
* <dd>
* -plugincustomization <properties file>: the location of a properties file containing default
* settings for plug-in preferences. These default settings override default settings specified in the
* primary feature. Relative paths are interpreted relative to the directory that eclipse was started
* from.
* </dd>
* <dd>
* -ws <window system>: sets the window system value
* </dd>
* </dl>
*/
public class Main {
/**
* Indicates whether this instance is running in debug mode.
*/
protected boolean debug = false;
/**
* The location of the launcher to run.
*/
protected String bootLocation = null;
/**
* The location of the install root
*/
protected String installLocation = null;
/**
* The location of the configuration information for this instance
*/
protected String configurationLocation = null;
/**
* The location of the configuration information in the install root
*/
protected String parentConfigurationLocation = null;
/**
* The id of the bundle that will contain the framework to run. Defaults to org.eclipse.osgi.
*/
protected String framework = OSGI;
/**
* The extra development time class path entries.
*/
protected String devClassPath = null;
/**
* Indicates whether this instance is running in development mode.
*/
protected boolean inDevelopmentMode = false;
private String exitData = null;
private String vm = null;
private String[] vmargs = null;
private String[] commands = null;
// splash handling
private String showSplash = null;
private String endSplash = null;
private boolean initialize = false;
private Process showProcess = null;
private boolean splashDown = false;
private final Runnable endSplashHandler = new Runnable() {
public void run() {
takeDownSplash();
}
};
// command line args
private static final String FRAMEWORK = "-framework"; //$NON-NLS-1$
private static final String INSTALL = "-install"; //$NON-NLS-1$
private static final String INITIALIZE = "-initialize"; //$NON-NLS-1$
private static final String VM = "-vm"; //$NON-NLS-1$
private static final String VMARGS = "-vmargs"; //$NON-NLS-1$
private static final String DEBUG = "-debug"; //$NON-NLS-1$
private static final String DEV = "-dev"; //$NON-NLS-1$
private static final String CONFIGURATION = "-configuration"; //$NON-NLS-1$
private static final String EXITDATA = "-exitdata"; //$NON-NLS-1$
private static final String NOSPLASH = "-nosplash"; //$NON-NLS-1$
private static final String SHOWSPLASH = "-showsplash"; //$NON-NLS-1$
private static final String ENDSPLASH = "-endsplash"; //$NON-NLS-1$
private static final String SPLASH_IMAGE = "splash.bmp"; //$NON-NLS-1$
private static final String OSGI = "org.eclipse.osgi"; //$NON-NLS-1$
private static final String STARTER = "org.eclipse.core.runtime.adaptor.EclipseStarter"; //$NON-NLS-1$
private static final String PLATFORM_URL = "platform:/base/"; //$NON-NLS-1$
// constants: configuration file location
private static final String CONFIG_DIR = "configuration/"; //$NON-NLS-1$
private static final String CONFIG_FILE = "config.ini"; //$NON-NLS-1$
private static final String CONFIG_FILE_TEMP_SUFFIX = ".tmp"; //$NON-NLS-1$
private static final String CONFIG_FILE_BAK_SUFFIX = ".bak"; //$NON-NLS-1$
private static final String ECLIPSE = "eclipse"; //$NON-NLS-1$
private static final String PRODUCT_SITE_MARKER = ".eclipseproduct"; //$NON-NLS-1$
private static final String PRODUCT_SITE_ID = "id"; //$NON-NLS-1$
private static final String PRODUCT_SITE_VERSION = "version"; //$NON-NLS-1$
// constants: System property keys and/or configuration file elements
private static final String PROP_USER_HOME = "user.home"; //$NON-NLS-1$
private static final String PROP_USER_DIR = "user.dir"; //$NON-NLS-1$
private static final String PROP_INSTALL_AREA = "osgi.install.area"; //$NON-NLS-1$
private static final String PROP_CONFIG_AREA = "osgi.configuration.area"; //$NON-NLS-1$
private static final String PROP_BASE_CONFIG_AREA = "osgi.baseConfiguration.area"; //$NON-NLS-1$
private static final String PROP_SHARED_CONFIG_AREA = "osgi.sharedConfiguration.area"; //$NON-NLS-1$
private static final String PROP_CONFIG_CASCADED = "osgi.configuration.cascaded"; //$NON-NLS-1$
private static final String PROP_FRAMEWORK = "osgi.framework"; //$NON-NLS-1$
private static final String PROP_SPLASHPATH = "osgi.splashPath"; //$NON-NLS-1$
private static final String PROP_SPLASHLOCATION = "osgi.splashLocation"; //$NON-NLS-1$
private static final String PROP_CLASSPATH = "osgi.frameworkClassPath"; //$NON-NLS-1$
private static final String PROP_LOGFILE = "osgi.logfile"; //$NON-NLS-1$
private static final String PROP_EOF = "eof"; //$NON-NLS-1$
private static final String PROP_EXITCODE = "eclipse.exitcode"; //$NON-NLS-1$
private static final String PROP_EXITDATA = "eclipse.exitdata"; //$NON-NLS-1$
private static final String PROP_VM = "eclipse.vm"; //$NON-NLS-1$
private static final String PROP_VMARGS = "eclipse.vmargs"; //$NON-NLS-1$
private static final String PROP_COMMANDS = "eclipse.commands"; //$NON-NLS-1$
// Data mode constants for user, configuration and data locations.
private static final String NONE = "@none"; //$NON-NLS-1$
private static final String NO_DEFAULT = "@noDefault"; //$NON-NLS-1$
private static final String USER_HOME = "@user.home"; //$NON-NLS-1$
private static final String USER_DIR = "@user.dir"; //$NON-NLS-1$
// log file handling
protected static final String SESSION = "!SESSION"; //$NON-NLS-1$
protected static final String ENTRY = "!ENTRY"; //$NON-NLS-1$
protected static final String MESSAGE = "!MESSAGE"; //$NON-NLS-1$
protected static final String STACK = "!STACK"; //$NON-NLS-1$
protected static final int ERROR = 4;
protected static final String PLUGIN_ID = "org.eclipse.core.launcher"; //$NON-NLS-1$
protected File logFile = null;
protected BufferedWriter log = null;
protected boolean newSession = true;
/**
* Executes the launch.
*
* @return the result of performing the launch
* @param args command-line arguments
* @exception Exception thrown if a problem occurs during the launch
*/
protected Object basicRun(String[] args) throws Exception {
System.getProperties().setProperty("eclipse.debug.startupTime", Long.toString(System.currentTimeMillis())); //$NON-NLS-1$
commands = args;
String[] passThruArgs = processCommandLine(args);
setupVMProperties();
processConfiguration();
// need to ensure that getInstallLocation is called at least once to initialize the value.
// Do this AFTER processing the configuration to allow the configuration to set
// the install location.
getInstallLocation();
// locate boot plugin (may return -dev mode variations)
URL[] bootPath = getBootPath(bootLocation);
// splash handling is done here, because the default case needs to know
// the location of the boot plugin we are going to use
handleSplash(bootPath);
// load the BootLoader and startup the platform
URLClassLoader loader = new URLClassLoader(bootPath, null);
Class clazz = loader.loadClass(STARTER);
Method method = clazz.getDeclaredMethod("run", new Class[] {String[].class, Runnable.class}); //$NON-NLS-1$
try {
return method.invoke(clazz, new Object[] {passThruArgs, endSplashHandler});
} catch (InvocationTargetException e) {
if (e.getTargetException() instanceof Error)
throw (Error) e.getTargetException();
else if (e.getTargetException() instanceof Exception)
throw (Exception) e.getTargetException();
else
//could be a subclass of Throwable!
throw e;
}
}
/**
* Returns a string representation of the given URL String. This converts
* escaped sequences (%..) in the URL into the appropriate characters.
* NOTE: due to class visibility there is a copy of this method
* in InternalBootLoader
*/
private String decode(String urlString) {
//try to use Java 1.4 method if available
try {
Class clazz = URLDecoder.class;
Method method = clazz.getDeclaredMethod("decode", new Class[] {String.class, String.class}); //$NON-NLS-1$
//first encode '+' characters, because URLDecoder incorrectly converts
//them to spaces on certain class library implementations.
if (urlString.indexOf('+') >= 0) {
int len = urlString.length();
StringBuffer buf = new StringBuffer(len);
for (int i = 0; i < len; i++) {
char c = urlString.charAt(i);
if (c == '+')
buf.append("%2B");
//$NON-NLS-1$
else
buf.append(c);
}
urlString = buf.toString();
}
Object result = method.invoke(null, new Object[] {urlString, "UTF-8"}); //$NON-NLS-1$
if (result != null)
return (String) result;
} catch (Exception e) {
//JDK 1.4 method not found -- fall through and decode by hand
}
//decode URL by hand
boolean replaced = false;
byte[] encodedBytes = urlString.getBytes();
int encodedLength = encodedBytes.length;
byte[] decodedBytes = new byte[encodedLength];
int decodedLength = 0;
for (int i = 0; i < encodedLength; i++) {
byte b = encodedBytes[i];
if (b == '%') {
byte enc1 = encodedBytes[++i];
byte enc2 = encodedBytes[++i];
b = (byte) ((hexToByte(enc1) << 4) + hexToByte(enc2));
replaced = true;
}
decodedBytes[decodedLength++] = b;
}
if (!replaced)
return urlString;
try {
return new String(decodedBytes, 0, decodedLength, "UTF-8"); //$NON-NLS-1$
} catch (UnsupportedEncodingException e) {
//use default encoding
return new String(decodedBytes, 0, decodedLength);
}
}
/**
* Returns the result of converting a list of comma-separated tokens into an array
*
* @return the array of string tokens
* @param prop the initial comma-separated string
*/
private String[] getArrayFromList(String prop) {
if (prop == null || prop.trim().equals("")) //$NON-NLS-1$
return new String[0];
Vector list = new Vector();
StringTokenizer tokens = new StringTokenizer(prop, ","); //$NON-NLS-1$
while (tokens.hasMoreTokens()) {
String token = tokens.nextToken().trim();
if (!token.equals("")) //$NON-NLS-1$
list.addElement(token);
}
return list.isEmpty() ? new String[0] : (String[]) list.toArray(new String[list.size()]);
}
/**
* Returns the <code>URL</code>-based class path describing where the boot classes
* are located when running in development mode.
*
* @return the url-based class path
* @param base the base location
* @exception MalformedURLException if a problem occurs computing the class path
*/
private URL[] getDevPath(URL base) throws IOException {
String devBase = base.toExternalForm();
ArrayList result = new ArrayList(5);
if (inDevelopmentMode)
addDevEntries(devBase, result); //$NON-NLS-1$
//The jars from the base always need to be added, even when running in dev mode (bug 46772)
addBaseJars(devBase, result);
return (URL[]) result.toArray(new URL[result.size()]);
}
private void addBaseJars(String devBase, ArrayList result) throws IOException {
String baseJarList = System.getProperty(PROP_CLASSPATH);
if (baseJarList == null) {
Properties defaults = loadProperties(devBase + "eclipse.properties");
baseJarList = defaults.getProperty(PROP_CLASSPATH);
if (baseJarList == null)
throw new IOException("Unable to initialize " + PROP_CLASSPATH);
System.getProperties().put(PROP_CLASSPATH, baseJarList);
}
String[] baseJars = getArrayFromList(baseJarList);
for (int i = 0; i < baseJars.length; i++) {
String string = baseJars[i];
try {
URL url = new URL(string);
addEntry(url, result);
} catch (MalformedURLException e) {
addEntry(new URL(devBase + string), result);
}
}
}
private void addEntry(URL url, List result) {
if (new File(url.getFile()).exists())
result.add(url);
}
private void addDevEntries(String devBase, List result) throws MalformedURLException {
String[] locations = getArrayFromList(devClassPath);
for (int i = 0; i < locations.length; i++) {
String spec = devBase + locations[i];
char lastChar = spec.charAt(spec.length() - 1);
URL url;
if ((spec.endsWith(".jar") || (lastChar == '/' || lastChar == '\\'))) //$NON-NLS-1$
url = new URL(spec);
else
url = new URL(spec + "/"); //$NON-NLS-1$
addEntry(url, result);
}
}
/**
* Returns the <code>URL</code>-based class path describing where the boot classes are located.
*
* @return the url-based class path
* @param base the base location
* @exception MalformedURLException if a problem occurs computing the class path
*/
private URL[] getBootPath(String base) throws IOException {
URL url = null;
if (base != null) {
url = new URL(base);
} else {
// search in the root location
url = new URL(getInstallLocation());
String path = url.getFile() + "plugins"; //$NON-NLS-1$
path = searchFor(framework, path);
if (path == null)
throw new RuntimeException("Could not find framework"); //$NON-NLS-1$
// add on any dev path elements
url = new URL(url.getProtocol(), url.getHost(), url.getPort(), path);
}
if (System.getProperty(PROP_FRAMEWORK) == null)
System.getProperties().put(PROP_FRAMEWORK, url.toExternalForm());
if (debug)
System.out.println("Framework located:\n " + url.toExternalForm());
URL[] result = getDevPath(url);
if (debug) {
System.out.println("Framework classpath:"); //$NON-NLS-1$
for (int i = 0; i < result.length; i++)
System.out.println(" " + result[i].toExternalForm()); //$NON-NLS-1$
}
return result;
}
/**
* Searches for the given target directory starting in the "plugins" subdirectory
* of the given location. If one is found then this location is returned;
* otherwise an exception is thrown.
*
* @return the location where target directory was found
* @param start the location to begin searching
*/
private String searchFor(final String target, String start) {
FileFilter filter = new FileFilter() {
public boolean accept(File candidate) {
return candidate.isDirectory() && (candidate.getName().equals(target) || candidate.getName().startsWith(target + "_")); //$NON-NLS-1$
}
};
File[] candidates = new File(start).listFiles(filter); //$NON-NLS-1$
if (candidates == null)
return null;
String result = null;
Object maxVersion = null;
for (int i = 0; i < candidates.length; i++) {
String name = candidates[i].getName();
String version = ""; //$NON-NLS-1$ // Note: directory with version suffix is always > than directory without version suffix
int index = name.indexOf('_');
if (index != -1)
version = name.substring(index + 1);
Object currentVersion = getVersionElements(version);
if (maxVersion == null) {
result = candidates[i].getAbsolutePath();
maxVersion = currentVersion;
} else {
if (compareVersion((Object[]) maxVersion, (Object[]) currentVersion) < 0) {
result = candidates[i].getAbsolutePath();
maxVersion = currentVersion;
}
}
}
if (result == null)
return null;
return result.replace(File.separatorChar, '/') + "/"; //$NON-NLS-1$
}
/**
* Compares version strings.
* @return result of comparison, as integer;
* <code><0</code> if left < right;
* <code>0</code> if left == right;
* <code>>0</code> if left > right;
*/
private int compareVersion(Object[] left, Object[] right) {
int result = ((Integer) left[0]).compareTo((Integer) right[0]); // compare major
if (result != 0)
return result;
result = ((Integer) left[1]).compareTo((Integer) right[1]); // compare minor
if (result != 0)
return result;
result = ((Integer) left[2]).compareTo((Integer) right[2]); // compare service
if (result != 0)
return result;
return ((String) left[3]).compareTo((String) right[3]); // compare qualifier
}
/**
* Do a quick parse of version identifier so its elements can be correctly compared.
* If we are unable to parse the full version, remaining elements are initialized
* with suitable defaults.
* @return an array of size 4; first three elements are of type Integer (representing
* major, minor and service) and the fourth element is of type String (representing
* qualifier). Note, that returning anything else will cause exceptions in the caller.
*/
private Object[] getVersionElements(String version) {
Object[] result = {new Integer(0), new Integer(0), new Integer(0), ""}; //$NON-NLS-1$
StringTokenizer t = new StringTokenizer(version, "."); //$NON-NLS-1$
String token;
int i = 0;
while (t.hasMoreTokens() && i < 4) {
token = t.nextToken();
if (i < 3) {
// major, minor or service ... numeric values
try {
result[i++] = new Integer(token);
} catch (Exception e) {
// invalid number format - use default numbers (0) for the rest
break;
}
} else {
// qualifier ... string value
result[i++] = token;
}
}
return result;
}
private URL buildURL(String spec, boolean trailingSlash) {
if (spec == null)
return null;
// if the spec is a file: url then see if it is absolute. If not, break it up
// and make it absolute.
if (spec.startsWith("file:")) {
File file = new File(spec.substring(5));
if (!file.isAbsolute())
spec = "file:" + file.getAbsolutePath();
}
try {
spec = adjustTrailingSlash(spec, true);
return new URL(spec);
} catch (MalformedURLException e) {
if (spec.startsWith("file:"))
return null;
return buildURL("file:" + spec, trailingSlash);
}
}
private URL buildLocation(String property, URL defaultLocation, String userDefaultAppendage) {
URL result = null;
String location = System.getProperty(property);
System.getProperties().remove(property);
// if the instance location is not set, predict where the workspace will be and
// put the instance area inside the workspace meta area.
try {
if (location == null)
result = defaultLocation;
else if (location.equalsIgnoreCase(NONE))
return null;
else if (location.equalsIgnoreCase(NO_DEFAULT))
result = buildURL(location, true);
else {
if (location.equalsIgnoreCase(USER_HOME))
location = computeDefaultUserAreaLocation(userDefaultAppendage);
if (location.equalsIgnoreCase(USER_DIR))
location = new File(System.getProperty(PROP_USER_DIR), userDefaultAppendage).getAbsolutePath();
result = buildURL(location, true);
}
} finally {
if (result != null)
System.getProperties().put(property, result.toExternalForm());
}
return result;
}
/**
* Retuns the default file system path for the configuration location.
* By default the configuration information is in the installation directory
* if this is writeable. Otherwise it is located somewhere in the user.home
* area relative to the current product.
* @return the default file system path for the configuration information
*/
private String computeDefaultConfigurationLocation() {
// 1) We store the config state relative to the 'eclipse' directory if possible
// 2) If this directory is read-only
// we store the state in <user.home>/.eclipse/<application-id>_<version> where <user.home>
// is unique for each local user, and <application-id> is the one
// defined in .eclipseproduct marker file. If .eclipseproduct does not
// exist, use "eclipse" as the application-id.
String install = getInstallLocation();
// TODO a little dangerous here. Basically we have to assume that it is a file URL.
if (install.startsWith("file:")) {
File installDir = new File(install.substring(5));
if (installDir.canWrite())
return installDir.getAbsolutePath() + File.separator + CONFIG_DIR;
}
// We can't write in the eclipse install dir so try for some place in the user's home dir
return computeDefaultUserAreaLocation(CONFIG_DIR);
}
/**
* Returns a files system path for an area in the user.home region related to the
* current product. The given appendage is added to this base location
* @param pathAppendage the path segments to add to computed base
* @return a file system location in the user.home area related the the current
* product and the given appendage
*/
private String computeDefaultUserAreaLocation(String pathAppendage) {
// we store the state in <user.home>/.eclipse/<application-id>_<version> where <user.home>
// is unique for each local user, and <application-id> is the one
// defined in .eclipseproduct marker file. If .eclipseproduct does not
// exist, use "eclipse" as the application-id.
URL installURL = buildURL(getInstallLocation(), true);
if (installURL == null)
return null;
File installDir = new File(installURL.getPath());
String appName = "." + ECLIPSE; //$NON-NLS-1$
File eclipseProduct = new File(installDir, PRODUCT_SITE_MARKER);
if (eclipseProduct.exists()) {
Properties props = new Properties();
try {
props.load(new FileInputStream(eclipseProduct));
String appId = props.getProperty(PRODUCT_SITE_ID);
if (appId == null || appId.trim().length() == 0)
appId = ECLIPSE;
String appVersion = props.getProperty(PRODUCT_SITE_VERSION);
if (appVersion == null || appVersion.trim().length() == 0)
appVersion = ""; //$NON-NLS-1$
appName += File.separator + appId + "_" + appVersion; //$NON-NLS-1$
} catch (IOException e) {
// Do nothing if we get an exception. We will default to a standard location
// in the user's home dir.
}
}
String userHome = System.getProperty(PROP_USER_HOME);
return new File(userHome, appName + "/" + pathAppendage).getAbsolutePath(); //$NON-NLS-1$
}
/**
* Runs this launcher with the arguments specified in the given string.
*
* @param argString the arguments string
* @exception Exception thrown if a problem occurs during launching
*/
public static void main(String argString) {
Vector list = new Vector(5);
for (StringTokenizer tokens = new StringTokenizer(argString, " "); tokens.hasMoreElements();)
//$NON-NLS-1$
list.addElement(tokens.nextElement());
main((String[]) list.toArray(new String[list.size()]));
}
/**
* Runs the platform with the given arguments. The arguments must identify
* an application to run (e.g., <code>-application com.example.application</code>).
* After running the application <code>System.exit(N)</code> is executed.
* The value of N is derived from the value returned from running the application.
* If the application's return value is an <code>Integer</code>, N is this value.
* In all other cases, N = 0.
* <p>
* Clients wishing to run the platform without a following <code>System.exit</code>
* call should use <code>run()</code>.
* </p>
*
* @param args the command line arguments
* @see #run
*/
public static void main(String[] args) {
int result = new Main().run(args);
System.exit(result);
}
/**
* Runs the platform with the given arguments. The arguments must identify
* an application to run (e.g., <code>-application com.example.application</code>).
* Returns the value returned from running the application.
* If the application's return value is an <code>Integer</code>, N is this value.
* In all other cases, N = 0.
*
* @param args the command line arguments
*/
public int run(String[] args) {
int result = 0;
try {
basicRun(args);
String exitCode = System.getProperty(PROP_EXITCODE);
try {
result = exitCode == null ? 0 : Integer.parseInt(exitCode);
} catch (NumberFormatException e) {
result = 17;
}
} catch (Throwable e) {
// try and take down the splash screen.
takeDownSplash();
// only log the exceptions if they have not been caught by the
// EclipseStarter (i.e., if the exitCode is not 13)
if (!"13".equals(System.getProperty(PROP_EXITCODE))) {
log("Exception launching the Eclipse Platform:"); //$NON-NLS-1$
log(e);
String message = "An error has occurred"; //$NON-NLS-1$
if (logFile == null)
message += " and could not be logged: \n" + e.getMessage(); //$NON-NLS-1$
else
message += ". See the log file\n" + logFile.getAbsolutePath(); //$NON-NLS-1$
System.getProperties().put(PROP_EXITDATA, message);
}
// Return "unlucky" 13 as the exit code. The executable will recognize
// this constant and display a message to the user telling them that
// there is information in their log file.
result = 13;
}
// Return an int exit code and ensure the system property is set.
System.getProperties().put(PROP_EXITCODE, Integer.toString(result));
setExitData();
return result;
}
private void setExitData() {
String data = System.getProperty(PROP_EXITDATA);
if (exitData == null || data == null)
return;
runCommand(exitData, data, " " + EXITDATA);
}
/**
* Processes the command line arguments. The general principle is to NOT
* consume the arguments and leave them to be processed by Eclipse proper.
* There are a few args which are directed towards main() and a few others which
* we need to know about. Very few should actually be consumed here.
*
* @return the arguments to pass through to the launched application
* @param args the command line arguments
*/
protected String[] processCommandLine(String[] args) {
// TODO temporarily handle the fact that PDE appends the -showsplash <timeout> onto
// the *end* of the command line. This interferes with the -vmargs arg. Process
// -showsplash now and remove it from the end. This code should be removed soon.
int end = args.length;
if (args.length > 1 && args[end - 2].equalsIgnoreCase(SHOWSPLASH)) {
showSplash = args[end - 1];
end -= 2;
}
String[] arguments = new String[end];
System.arraycopy(args, 0, arguments, 0, end);
int[] configArgs = new int[arguments.length];
configArgs[0] = -1; // need to initialize the first element to something that could not be an index.
int configArgIndex = 0;
for (int i = 0; i < arguments.length; i++) {
boolean found = false;
// check for args without parameters (i.e., a flag arg)
// check if debug should be enabled for the entire platform
if (arguments[i].equalsIgnoreCase(DEBUG)) {
debug = true;
// passed thru this arg (i.e., do not set found = true)
continue;
}
// look for and consume the nosplash directive. This supercedes any
// -showsplash command that might be present.
if (arguments[i].equalsIgnoreCase(NOSPLASH)) {
splashDown = true;
found = true;
}
// check if this is initialization pass
if (arguments[i].equalsIgnoreCase(INITIALIZE)) {
initialize = true;
// passed thru this arg (i.e., do not set found = true)
continue;
}
// check if development mode should be enabled for the entire platform
// If this is the last arg or there is a following arg (i.e., arg+1 has a leading -),
// simply enable development mode. Otherwise, assume that that the following arg is
// actually some additional development time class path entries. This will be processed below.
if (arguments[i].equalsIgnoreCase(DEV) && ((i + 1 == arguments.length) || ((i + 1 < arguments.length) && (arguments[i + 1].startsWith("-"))))) { //$NON-NLS-1$
inDevelopmentMode = true;
// do not mark the arg as found so it will be passed through
continue;
}
// done checking for args. Remember where an arg was found
if (found) {
configArgs[configArgIndex++] = i;
continue;
}
// look for the VM args arg. We have to do that before looking to see
// if the next element is a -arg as the thing following -vmargs may in
// fact be another -arg.
if (arguments[i].equalsIgnoreCase(VMARGS)) {
// consume the -vmargs arg itself
arguments[i] = null;
i++;
vmargs = new String[arguments.length - i];
for (int j = 0; i < arguments.length; i++) {
vmargs[j++] = arguments[i];
arguments[i] = null;
}
continue;
}
// check for args with parameters. If we are at the last argument or if the next one
// has a '-' as the first character, then we can't have an arg with a parm so continue.
if (i == arguments.length - 1 || arguments[i + 1].startsWith("-")) //$NON-NLS-1$
continue;
String arg = arguments[++i];
// look for the development mode and class path entries.
if (arguments[i - 1].equalsIgnoreCase(DEV)) {
inDevelopmentMode = true;
devClassPath = processDevArg(arg);
continue;
}
// look for the framework to run
if (arguments[i - 1].equalsIgnoreCase(FRAMEWORK)) {
framework = arg;
found = true;
}
// look for explicitly set install root
// Consume the arg here to ensure that the launcher and Eclipse get the
// same value as each other.
if (arguments[i - 1].equalsIgnoreCase(INSTALL)) {
System.getProperties().put(PROP_INSTALL_AREA, arg);
found = true;
}
// look for the configuration to use.
// Consume the arg here to ensure that the launcher and Eclipse get the
// same value as each other.
if (arguments[i - 1].equalsIgnoreCase(CONFIGURATION)) {
System.getProperties().put(PROP_CONFIG_AREA, arg);
found = true;
}
// look for the command to use to set exit data in the launcher
if (arguments[i - 1].equalsIgnoreCase(EXITDATA)) {
exitData = arg;
found = true;
}
// look for the command to use to show the splash screen
if (arguments[i - 1].equalsIgnoreCase(SHOWSPLASH)) {
showSplash = arg;
found = true;
}
// look for the command to use to end the splash screen
if (arguments[i - 1].equalsIgnoreCase(ENDSPLASH)) {
endSplash = arg;
found = true;
}
// look for the VM location arg
if (arguments[i - 1].equalsIgnoreCase(VM)) {
vm = arg;
found = true;
}
// done checking for args. Remember where an arg was found
if (found) {
configArgs[configArgIndex++] = i - 1;
configArgs[configArgIndex++] = i;
}
}
// remove all the arguments consumed by this argument parsing
if (configArgIndex == 0)
return arguments;
String[] passThruArgs = new String[arguments.length - configArgIndex - (vmargs == null ? 0 : vmargs.length + 1)];
configArgIndex = 0;
int j = 0;
for (int i = 0; i < arguments.length; i++) {
if (i == configArgs[configArgIndex])
configArgIndex++;
else if (arguments[i] != null)
passThruArgs[j++] = arguments[i];
}
return passThruArgs;
}
private String processDevArg(String arg) {
if (arg == null)
return null;
try {
URL location = new URL(arg);
Properties props = load(location, null);
String result = props.getProperty("org.eclipse.osgi");
return result == null ? props.getProperty("*") : result;
} catch (MalformedURLException e) {
// the arg was not a URL so use it as is.
return arg;
} catch (IOException e) {
// TODO consider logging here
return null;
}
}
private String getConfigurationLocation() {
if (configurationLocation != null)
return configurationLocation;
URL result = buildLocation(PROP_CONFIG_AREA, null, CONFIG_DIR);
if (result == null)
result = buildURL(computeDefaultConfigurationLocation(), true);
if (result == null)
return null;
configurationLocation = adjustTrailingSlash(result.toExternalForm(), true);
System.getProperties().put(PROP_CONFIG_AREA, configurationLocation);
if (debug)
System.out.println("Configuration location:\n " + configurationLocation);
return configurationLocation;
}
private void processConfiguration() {
// if the configuration area is not already defined, discover the config area by
// trying to find a base config area. This is either defined in a system property or
// is computed relative to the install location.
// Note that the config info read here is only used to determine a value
// for the user configuration area
URL baseConfigurationLocation = null;
Properties baseConfiguration = null;
if (System.getProperty(PROP_CONFIG_AREA) == null) {
String baseLocation = System.getProperty(PROP_BASE_CONFIG_AREA);
if (baseLocation != null)
// here the base config cannot have any symbolic (e..g, @xxx) entries. It must just
// point to the config file.
baseConfigurationLocation = buildURL(baseLocation, true);
if (baseConfigurationLocation == null)
// here we access the install location but this is very early. This case will only happen if
// the config area is not set and the base config area is not set (or is bogus).
// In this case we compute based on the install location.
baseConfigurationLocation = buildURL(getInstallLocation() + CONFIG_DIR, true);
baseConfiguration = loadConfiguration(baseConfigurationLocation.toExternalForm());
if (baseConfiguration != null) {
// if the base sets the install area then use that value if the property. We know the
// property is not already set.
String location = baseConfiguration.getProperty(PROP_CONFIG_AREA);
if (location != null)
System.getProperties().put(PROP_CONFIG_AREA, location);
// if the base sets the install area then use that value if the property is not already set.
// This helps in selfhosting cases where you cannot easily compute the install location
// from the code base.
location = baseConfiguration.getProperty(PROP_INSTALL_AREA);
if (location != null && System.getProperty(PROP_INSTALL_AREA) == null)
System.getProperties().put(PROP_INSTALL_AREA, location);
}
}
// Now we know where the base configuration is supposed to be. Go ahead and load
// it and merge into the System properties. Then, if cascaded, read the parent configuration
// Note that the parent may or may not be the same parent as we read above since the
// base can define its parent. The first parent we read was either defined by the user
// on the command line or was the one in the install dir.
// if the config or parent we are about to read is the same as the base config we read above,
// just reuse the base
Properties configuration = baseConfiguration;
if (configuration == null || !getConfigurationLocation().equals(baseConfigurationLocation.toExternalForm()))
configuration = loadConfiguration(getConfigurationLocation());
mergeProperties(System.getProperties(), configuration);
if ("false".equalsIgnoreCase(System.getProperty(PROP_CONFIG_CASCADED)))
// if we are not cascaded then remvoe the parent property even if it was set.
System.getProperties().remove(PROP_SHARED_CONFIG_AREA);
else {
URL sharedConfigURL = buildLocation(PROP_SHARED_CONFIG_AREA, null, CONFIG_DIR);
if (sharedConfigURL == null)
// here we access the install location but this is very early. This case will only happen if
// the config is cascaded and the parent config area is not set (or is bogus).
// In this case we compute based on the install location. Note that we should not
// precompute this value and use it as the default in the call to buildLocation as it will
// unnecessarily bind the install location.
sharedConfigURL = buildURL(getInstallLocation() + CONFIG_DIR, true);
// if the parent location is different from the config location, read it too.
if (sharedConfigURL != null) {
String location = sharedConfigURL.toExternalForm();
if (location.equals(getConfigurationLocation()))
// remove the property to show that we do not have a parent.
System.getProperties().remove(PROP_SHARED_CONFIG_AREA);
else {
// if the parent we are about to read is the same as the base config we read above,
// just reuse the base
configuration = baseConfiguration;
if (!sharedConfigURL.equals(baseConfigurationLocation))
configuration = loadConfiguration(location);
mergeProperties(System.getProperties(), configuration);
System.getProperties().put(PROP_SHARED_CONFIG_AREA, location);
if (debug)
System.out.println("Shared configuration location:\n " + location);
}
}
}
// setup the path to the framework
String urlString = System.getProperty(PROP_FRAMEWORK, null);
if (urlString != null) {
urlString = adjustTrailingSlash(urlString, true);
System.getProperties().put(PROP_FRAMEWORK, urlString);
bootLocation = resolve(urlString);
}
}
/**
* Returns url of the location this class was loaded from
*/
private String getInstallLocation() {
if (installLocation != null)
return installLocation;
// value is not set so compute the default and set the value
installLocation = System.getProperty(PROP_INSTALL_AREA);
if (installLocation != null) {
URL location = buildURL(installLocation, true);
if (location == null)
throw new IllegalStateException("Install location is invalid: " + installLocation);
installLocation = location.toExternalForm();
System.getProperties().put(PROP_INSTALL_AREA, installLocation);
if (debug)
System.out.println("Install location:\n " + installLocation);
return installLocation;
}
URL result = Main.class.getProtectionDomain().getCodeSource().getLocation();
String path = decode(result.getFile());
path = new File(path).getAbsolutePath().replace(File.separatorChar, '/');
// TODO need a better test for windows
// If on Windows then canonicalize the drive letter to be lowercase.
if (File.separatorChar == '\\')
if (Character.isUpperCase(path.charAt(0))) {
char[] chars = path.toCharArray();
chars[0] = Character.toLowerCase(chars[0]);
path = new String(chars);
}
if (path.endsWith(".jar")) //$NON-NLS-1$
path = path.substring(0, path.lastIndexOf("/") + 1); //$NON-NLS-1$
try {
installLocation = new URL(result.getProtocol(), result.getHost(), result.getPort(), path).toExternalForm();
System.getProperties().put(PROP_INSTALL_AREA, installLocation);
} catch (MalformedURLException e) {
// TODO Very unlikely case. log here.
}
if (debug)
System.out.println("Install location:\n " + installLocation);
return installLocation;
}
/*
* Load the given configuration file
*/
private Properties loadConfiguration(String url) {
Properties result = null;
url += CONFIG_FILE;
try {
if (debug)
System.out.print("Configuration file:\n " + url.toString()); //$NON-NLS-1$
result = loadProperties(url);
if (debug)
System.out.println(" loaded"); //$NON-NLS-1$
} catch (IOException e) {
if (debug)
System.out.println(" not found or not read"); //$NON-NLS-1$
}
return result;
}
private Properties loadProperties(String location) throws IOException {
// try to load saved configuration file (watch for failed prior save())
URL url = buildURL(location, false);
if (url == null)
return null;
Properties result = null;
IOException originalException = null;
try {
result = load(url, null); // try to load config file
} catch (IOException e1) {
originalException = e1;
try {
result = load(url, CONFIG_FILE_TEMP_SUFFIX); // check for failures on save
} catch (IOException e2) {
try {
result = load(url, CONFIG_FILE_BAK_SUFFIX); // check for failures on save
} catch (IOException e3) {
throw originalException; // we tried, but no config here ...
}
}
}
return result;
}
/*
* Load the configuration
*/
private Properties load(URL url, String suffix) throws IOException {
// figure out what we will be loading
if (suffix != null && !suffix.equals("")) //$NON-NLS-1$
url = new URL(url.getProtocol(), url.getHost(), url.getPort(), url.getFile() + suffix);
// try to load saved configuration file
Properties props = new Properties();
InputStream is = null;
try {
is = url.openStream();
props.load(is);
// check to see if we have complete config file
if (!PROP_EOF.equals(props.getProperty(PROP_EOF)))
throw new IOException("Incomplete configuration file: " + url.toExternalForm()); //$NON-NLS-1$
} finally {
if (is != null)
try {
is.close();
} catch (IOException e) {
//ignore failure to close
}
}
return props;
}
/*
* Handle splash screen.
* We support 2 startup scenarios:
*
* (1) the executable launcher put up the splash screen. In that
* scenario we are invoked with -endsplash command which is
* fully formed to take down the splash screen
*
* (2) the executable launcher did not put up the splash screen,
* but invokes Eclipse with partially formed -showsplash command.
* In this scenario we determine which splash to display (based on
* feature information) and then call -showsplash command.
*
* In both scenarios we pass a handler (Runnable) to the platform.
* The handler is called as a result of the launched application calling
* Platform.endSplash(). In the first scenario this results in the
* -endsplash command being executed. In the second scenarios this
* results in the process created as a result of the -showsplash command
* being destroyed.
*
* @param bootPath search path for the boot plugin
*/
private void handleSplash(URL[] defaultPath) {
// run without splash if we are initializing or nosplash
// was specified (splashdown = true)
if (initialize || splashDown) {
showSplash = null;
endSplash = null;
return;
}
// if -endsplash is specified, use it and ignore any -showsplash command
if (endSplash != null) {
showSplash = null;
return;
}
// check if we are running without a splash screen
if (showSplash == null)
return;
// determine the splash location
String location = getSplashLocation(defaultPath);
if (debug)
System.out.println("Splash location:\n " + location); //$NON-NLS-1$
if (location == null)
return;
showProcess = runCommand(showSplash, location, " " + SHOWSPLASH); //$NON-NLS-1$
}
private Process runCommand(String command, String data, String separator) {
// Parse the showsplash command into its separate arguments.
// The command format is:
// <executable> -show <magicArg> [<splashPath>]
// If either the <executable> or the <splashPath> arguments contain a
// space, Runtime.getRuntime().exec( String ) will not work, even
// if both arguments are enclosed in double-quotes. The solution is to
// use the Runtime.getRuntime().exec( String[] ) method.
String[] args = new String[(data != null ? 4 : 3)];
// get the executable part
int sIndex = 0;
int eIndex = command.indexOf(separator);
if (eIndex == -1)
return null; // invalid command
args[0] = command.substring(sIndex, eIndex);
// get the command part
sIndex = eIndex + 1;
eIndex = command.indexOf(" ", sIndex); //$NON-NLS-1$
if (eIndex == -1)
return null; // invalid command
args[1] = command.substring(sIndex, eIndex);
// get the magic arg part
args[2] = command.substring(eIndex + 1);
// add on our data
if (data != null)
args[3] = data;
Process result = null;
try {
result = Runtime.getRuntime().exec(args);
} catch (Exception e) {
log("Exception running command: " + command); //$NON-NLS-1$
log(e);
}
return result;
}
/*
* take down the splash screen. Try both take-down methods just in case
* (only one should ever be set)
*/
protected void takeDownSplash() {
if (splashDown) // splash is already down
return;
// check if -endsplash was specified
if (endSplash != null) {
try {
Runtime.getRuntime().exec(endSplash);
} catch (Exception e) {
//ignore failure to end splash
}
}
// check if -showsplash was specified and executed
if (showProcess != null) {
showProcess.destroy();
showProcess = null;
}
splashDown = true;
}
/*
* Return path of the splash image to use. First search the defined splash path.
* If that does not work, look for a default splash. Currently the splash must be in the file system
* so the return value here is the file system path.
*/
private String getSplashLocation(URL[] bootPath) {
String result = System.getProperty(PROP_SPLASHLOCATION);
if (result != null)
return result;
String splashPath = System.getProperty(PROP_SPLASHPATH);
if (splashPath != null) {
String[] entries = getArrayFromList(splashPath);
ArrayList path = new ArrayList(entries.length);
for (int i = 0; i < entries.length; i++) {
String entry = resolve(entries[i]);
if (entry == null || entry.startsWith("file:")) {
File entryFile = new File(entry.substring(5).replace('/', File.separatorChar));
entry = searchFor(entryFile.getName(), entryFile.getParent());
if (entry != null)
path.add(entry);
} else
log("Invalid splash path entry: " + entries[i]);
}
// see if we can get a splash given the splash path
result = searchForSplash((String[]) path.toArray(new String[path.size()]));
if (result != null) {
System.getProperties().put(PROP_SPLASHLOCATION, result);
return result;
}
}
// can't find it on the splashPath so look for a default splash
String temp = bootPath[0].getFile(); // take the first path element
temp = temp.replace('/', File.separatorChar);
int ix = temp.lastIndexOf("plugins" + File.separator); //$NON-NLS-1$
if (ix != -1) {
int pix = temp.indexOf(File.separator, ix + 8);
if (pix != -1) {
temp = temp.substring(0, pix);
result = searchForSplash(new String[] {temp});
if (result != null)
System.getProperties().put(PROP_SPLASHLOCATION, result);
}
}
return result;
}
/*
* Do a locale-sensitive lookup of splash image
*/
private String searchForSplash(String[] searchPath) {
if (searchPath == null)
return null;
// get current locale information
String localePath = Locale.getDefault().toString().replace('_', File.separatorChar);
// search the specified path
while (localePath != null) {
String suffix;
if (localePath.equals("")) { //$NON-NLS-1$
// look for nl'ed splash image
suffix = SPLASH_IMAGE;
} else {
// look for default splash image
suffix = "nl" + File.separator + localePath + File.separator + SPLASH_IMAGE; //$NON-NLS-1$
}
// check for file in searchPath
for (int i = 0; i < searchPath.length; i++) {
String path = searchPath[i];
if (!path.endsWith(File.separator))
path += File.separator;
path += suffix;
File result = new File(path);
if (result.exists())
return result.getAbsolutePath(); // return the first match found [20063]
}
// try the next variant
if (localePath.equals("")) //$NON-NLS-1$
localePath = null;
else {
int ix = localePath.lastIndexOf(File.separator);
if (ix == -1)
localePath = ""; //$NON-NLS-1$
else
localePath = localePath.substring(0, ix);
}
}
// sorry, could not find splash image
return null;
}
/*
* resolve platform:/base/ URLs
*/
private String resolve(String urlString) {
// handle the case where people mistakenly spec a refererence: url.
if (urlString.startsWith("reference:")) {
urlString = urlString.substring(10);
System.getProperties().put(PROP_FRAMEWORK, urlString);
}
if (urlString.startsWith(PLATFORM_URL)) {
String path = urlString.substring(PLATFORM_URL.length());
return getInstallLocation() + path;
} else
return urlString;
}
/*
* Entry point for logging.
*/
private synchronized void log(Object obj) {
if (obj == null)
return;
try {
openLogFile();
try {
if (newSession) {
log.write(SESSION);
log.write(' ');
String timestamp = new Date().toString();
log.write(timestamp);
log.write(' ');
for (int i = SESSION.length() + timestamp.length(); i < 78; i++)
log.write('-');
log.newLine();
newSession = false;
}
write(obj);
} finally {
if (logFile == null) {
if (log != null)
log.flush();
} else
closeLogFile();
}
} catch (Exception e) {
System.err.println("An exception occurred while writing to the platform log:"); //$NON-NLS-1$
e.printStackTrace(System.err);
System.err.println("Logging to the console instead."); //$NON-NLS-1$
//we failed to write, so dump log entry to console instead
try {
log = logForStream(System.err);
write(obj);
log.flush();
} catch (Exception e2) {
System.err.println("An exception occurred while logging to the console:"); //$NON-NLS-1$
e2.printStackTrace(System.err);
}
} finally {
log = null;
}
}
/*
* This should only be called from #log()
*/
private void write(Object obj) throws IOException {
if (obj == null)
return;
if (obj instanceof Throwable) {
log.write(STACK);
log.newLine();
((Throwable) obj).printStackTrace(new PrintWriter(log));
} else {
log.write(ENTRY);
log.write(' ');
log.write(PLUGIN_ID);
log.write(' ');
log.write(String.valueOf(ERROR));
log.write(' ');
log.write(String.valueOf(0));
log.write(' ');
try {
DateFormat formatter = new SimpleDateFormat("MMM dd, yyyy kk:mm:ss.SS"); //$NON-NLS-1$
log.write(formatter.format(new Date()));
} catch (Exception e) {
// continue if we can't write out the date
log.write(Long.toString(System.currentTimeMillis()));
}
log.newLine();
log.write(MESSAGE);
log.write(' ');
log.write(String.valueOf(obj));
}
log.newLine();
}
private void computeLogFileLocation() {
String logFileProp = System.getProperty(PROP_LOGFILE);
if (logFileProp != null) {
if (logFile == null || !logFileProp.equals(logFile.getAbsolutePath())) {
logFile = new File(logFileProp);
logFile.getParentFile().mkdirs();
}
return;
}
// compute the base location and then append the name of the log file
URL base = buildURL(System.getProperty(PROP_CONFIG_AREA), false);
if (base == null)
return;
logFile = new File(base.getPath(), Long.toString(System.currentTimeMillis()) + ".log"); //$NON-NLS-1$
logFile.getParentFile().mkdirs();
System.setProperty(PROP_LOGFILE, logFile.getAbsolutePath());
}
/**
* Converts an ASCII character representing a hexadecimal
* value into its integer equivalent.
*/
private int hexToByte(byte b) {
switch (b) {
case '0' :
return 0;
case '1' :
return 1;
case '2' :
return 2;
case '3' :
return 3;
case '4' :
return 4;
case '5' :
return 5;
case '6' :
return 6;
case '7' :
return 7;
case '8' :
return 8;
case '9' :
return 9;
case 'A' :
case 'a' :
return 10;
case 'B' :
case 'b' :
return 11;
case 'C' :
case 'c' :
return 12;
case 'D' :
case 'd' :
return 13;
case 'E' :
case 'e' :
return 14;
case 'F' :
case 'f' :
return 15;
default :
throw new IllegalArgumentException("Switch error decoding URL"); //$NON-NLS-1$
}
}
private void openLogFile() throws IOException {
computeLogFileLocation();
try {
log = new BufferedWriter(new OutputStreamWriter(new FileOutputStream(logFile.getAbsolutePath(), true), "UTF-8")); //$NON-NLS-1$
} catch (IOException e) {
logFile = null;
throw e;
}
}
private BufferedWriter logForStream(OutputStream output) {
try {
return new BufferedWriter(new OutputStreamWriter(output, "UTF-8")); //$NON-NLS-1$
} catch (UnsupportedEncodingException e) {
return new BufferedWriter(new OutputStreamWriter(output));
}
}
private void closeLogFile() throws IOException {
try {
if (log != null) {
log.flush();
log.close();
}
} finally {
log = null;
}
}
private void mergeProperties(Properties destination, Properties source) {
if (destination == null || source == null)
return;
for (Enumeration e = source.keys(); e.hasMoreElements();) {
String key = (String) e.nextElement();
if (!key.equals(PROP_EOF)) {
String value = source.getProperty(key);
if (destination.getProperty(key) == null)
destination.put(key, value);
}
}
}
public void setupVMProperties() {
if (vm != null)
System.getProperties().put(PROP_VM, vm);
setMultiValueProperty(PROP_VMARGS, vmargs);
setMultiValueProperty(PROP_COMMANDS, commands);
}
private void setMultiValueProperty(String property, String[] value) {
if (value != null) {
StringBuffer result = new StringBuffer(300);
for (int i = 0; i < value.length; i++) {
result.append(value[i]);
result.append('\n');
}
System.getProperties().put(property, result.toString());
}
}
private String adjustTrailingSlash(String value, boolean slash) {
boolean hasSlash = value.endsWith("/") || value.endsWith(File.separator);
if (hasSlash == slash)
return value;
if (hasSlash)
return value.substring(0, value.length() - 1);
return value + "/";
}
}