ui/org.eclipse.pde.core/src/org/eclipse/pde/internal/core/TargetPlatform.java - pde/eclipse.pde.ui - Git at Google

 /*******************************************************************************
  * Copyright (c) 2000, 2006 IBM Corporation and others.
  * All rights reserved. This program and the accompanying materials
  * are made available under the terms of the Eclipse Public License v1.0
  * which accompanies this distribution, and is available at
  * http://www.eclipse.org/legal/epl-v10.html
  *
  * Contributors:
  *     IBM Corporation - initial API and implementation
  *******************************************************************************/
 package org.eclipse.pde.internal.core;

 import java.io.File;
 import java.io.FileInputStream;
 import java.io.IOException;
 import java.net.MalformedURLException;
 import java.net.URL;
 import java.util.ArrayList;
 import java.util.Dictionary;
 import java.util.HashMap;
 import java.util.Hashtable;
 import java.util.Iterator;
 import java.util.Locale;
 import java.util.Map;
 import java.util.Properties;
 import java.util.Set;
 import java.util.StringTokenizer;
 import java.util.TreeSet;

 import org.eclipse.core.runtime.CoreException;
 import org.eclipse.core.runtime.IPath;
 import org.eclipse.core.runtime.IStatus;
 import org.eclipse.core.runtime.Path;
 import org.eclipse.core.runtime.Platform;
 import org.eclipse.core.runtime.Status;
 import org.eclipse.osgi.service.resolver.BundleDescription;
 import org.eclipse.osgi.service.resolver.State;
 import org.eclipse.osgi.util.ManifestElement;
 import org.eclipse.pde.core.plugin.IPluginExtension;
 import org.eclipse.pde.core.plugin.IPluginLibrary;
 import org.eclipse.pde.core.plugin.IPluginModelBase;
 import org.eclipse.pde.core.plugin.IPluginObject;
 import org.eclipse.pde.internal.core.ifeature.IFeature;
 import org.eclipse.pde.internal.core.ifeature.IFeatureModel;
 import org.eclipse.pde.internal.core.util.CoreUtility;
 import org.eclipse.update.configurator.ConfiguratorUtils;
 import org.eclipse.update.configurator.IPlatformConfiguration;
 import org.osgi.framework.BundleContext;
 import org.osgi.framework.BundleException;
 import org.osgi.framework.Constants;
 import org.osgi.framework.InvalidSyntaxException;

 public class TargetPlatform implements IEnvironmentVariables {

 	private static String FILE_URL_PREFIX = "file:/"; //$NON-NLS-1$

 	static class LocalSite {
 		private ArrayList plugins;
 		private IPath path;

 		public LocalSite(IPath path) {
 			if (path.getDevice() != null)
 				this.path = path.setDevice(path.getDevice().toUpperCase(Locale.ENGLISH));
 			else
 				this.path = path;
 			plugins = new ArrayList();
 		}

 		public IPath getPath() {
 			return path;
 		}

 		public URL getURL() throws MalformedURLException {
 			return new URL("file:" + path.removeTrailingSeparator()); //$NON-NLS-1$
 		}

 		public void add(IPluginModelBase model) {
 			plugins.add(model);
 		}

 		public String[] getRelativePluginList() {
 			String[] list = new String[plugins.size()];
 			for (int i = 0; i < plugins.size(); i++) {
 				IPluginModelBase model = (IPluginModelBase) plugins.get(i);
 				IPath location = new Path(model.getInstallLocation());
 				// defect 37319
 				if (location.segmentCount() > 2)
 					location = location.removeFirstSegments(location.segmentCount() - 2);
 				//31489 - entry must be relative
 				list[i] = location.setDevice(null).makeRelative().toString();
 			}
 			return list;
 		}
 	}

 	private static Map fCachedLocations;

 	public static Properties getConfigIniProperties() {
 		File iniFile = new File(ExternalModelManager.getEclipseHome().toOSString(), "configuration/config.ini"); //$NON-NLS-1$
 		if (!iniFile.exists())
 			return null;
 		Properties pini = new Properties();
 		try {
 			FileInputStream fis = new FileInputStream(iniFile);
 			pini.load(fis);
 			fis.close();
 			return pini;
 		} catch (IOException e) {
 		}
 		return null;
 	}

 	public static String getBundleList() {
 		Properties properties = getConfigIniProperties();
 		String osgiBundles = properties == null ? null : properties.getProperty("osgi.bundles"); //$NON-NLS-1$
 		if (osgiBundles == null) {
 			StringBuffer buffer = new StringBuffer();
 			if (getTargetVersion() > 3.1) {
 				buffer.append("org.eclipse.equinox.common@2:start,"); //$NON-NLS-1$
 				buffer.append("org.eclipse.update.configurator@3:start,"); //$NON-NLS-1$
 				buffer.append("org.eclipse.core.runtime@start"); //$NON-NLS-1$
 			} else {
 				buffer.append("org.eclipse.core.runtime@2:start,"); //$NON-NLS-1$
 				buffer.append("org.eclipse.update.configurator@3:start"); //$NON-NLS-1$
 			}
 			osgiBundles = buffer.toString();
 		} else {
 			osgiBundles = stripPathInformation(osgiBundles);
 		}
 		return osgiBundles;
 	}

 	public static String stripPathInformation(String osgiBundles) {
 		osgiBundles = osgiBundles.replaceAll("\\s", ""); //$NON-NLS-1$ //$NON-NLS-2$
 		StringBuffer result = new StringBuffer();
 		StringTokenizer tokenizer = new StringTokenizer(osgiBundles, ","); //$NON-NLS-1$
 		while (tokenizer.hasMoreElements()) {
 			String token = tokenizer.nextToken();
 			int index = token.indexOf('@');

 			// read up until the first @, if there
 			String bundle = index > 0 ? token.substring(0, index) : token;

 			// if the path is relative, the last segment is the bundle symbolic name
 			// Otherwise, we need to retrieve the bundle symbolic name ourselves
 			IPath path = new Path(bundle);
 			String id = path.isAbsolute() ? getSymbolicName(bundle) : path.lastSegment();
 			if (result.length() > 0)
 				result.append(","); //$NON-NLS-1$
 			result.append(id != null ? id : bundle);
 			if (index > -1)
 				result.append(token.substring(index));
 		}
 		return result.toString();
 	}

 	private static synchronized String getSymbolicName(String path) {
 		if (fCachedLocations == null)
 			fCachedLocations = new HashMap();
 		if (path.startsWith(FILE_URL_PREFIX))
 			path = path.substring(FILE_URL_PREFIX.length());

 		File file = new File(path);
 		if (file.exists() && !fCachedLocations.containsKey(path)) {
 			try {
 				Dictionary dictionary = MinimalState.loadManifest(file);
 				String value = (String)dictionary.get(Constants.BUNDLE_SYMBOLICNAME);
 				if (value != null) {
 					ManifestElement[] elements = ManifestElement.parseHeader(Constants.BUNDLE_SYMBOLICNAME, value);
 					String id = elements.length > 0 ? elements[0].getValue() : null;
 					if (id != null)
 						fCachedLocations.put(path, elements[0].getValue());
 				}
 			} catch (IOException e) {
 			} catch (BundleException e) {
 			}
 		}
 		return (String)fCachedLocations.get(path);
 	}


 	public static void createPlatformConfigurationArea(
 		Map pluginMap,
 		File configDir,
 		String brandingPluginID)
 		throws CoreException {
 		try {
 			if (pluginMap.containsKey("org.eclipse.update.configurator"))   //$NON-NLS-1$
 				savePlatformConfiguration(ConfiguratorUtils.getPlatformConfiguration(null),configDir, pluginMap, brandingPluginID);
 			checkPluginPropertiesConsistency(pluginMap, configDir);
 		} catch (CoreException e) {
 			// Rethrow
 			throw e;
 		} catch (Exception e) {
 			// Wrap everything else in a core exception.
 			String message = e.getMessage();
 			if (message==null || message.length() == 0)
 				message = PDECoreMessages.TargetPlatform_exceptionThrown;
 			throw new CoreException(
 				new Status(
 					IStatus.ERROR,
 					PDECore.getPluginId(),
 					IStatus.ERROR,
 					message,
 					e));
 		}
 	}

 	private static void checkPluginPropertiesConsistency(Map map, File configDir) {
 		File runtimeDir = new File(configDir, "org.eclipse.core.runtime"); //$NON-NLS-1$
 		if (runtimeDir.exists() && runtimeDir.isDirectory()) {
 			long timestamp = runtimeDir.lastModified();
 			Iterator iter = map.values().iterator();
 			while (iter.hasNext()) {
 				if (hasChanged((IPluginModelBase)iter.next(), timestamp)) {
                     CoreUtility.deleteContent(runtimeDir);
                     break;
                 }
 			}
  		}
 	}

     private static boolean hasChanged(IPluginModelBase model, long timestamp) {
         if (model.getUnderlyingResource() != null) {
             File[] files = new File(model.getInstallLocation()).listFiles();
             for (int i = 0; i < files.length; i++) {
                 if (files[i].isDirectory())
                     continue;
                 String name = files[i].getName();
                 if (name.startsWith("plugin") && name.endsWith(".properties") //$NON-NLS-1$ //$NON-NLS-2$
                         && files[i].lastModified() > timestamp) {
                      return true;
                 }
             }
         }
         return false;
     }

 	private static void savePlatformConfiguration(
 		IPlatformConfiguration platformConfiguration,
 		File configFile,
 		Map pluginMap,
 		String primaryFeatureId)
 		throws IOException, CoreException, MalformedURLException {
 		ArrayList sites = new ArrayList();

 		// Compute local sites
 		Iterator iter = pluginMap.values().iterator();
 		while(iter.hasNext()) {
 			IPluginModelBase model = (IPluginModelBase)iter.next();
 			IPath sitePath = getTransientSitePath(model);
 			addToSite(sitePath, model, sites);
 		}

 		createConfigurationEntries(platformConfiguration,sites);
 		if (primaryFeatureId != null)
 			createFeatureEntries(platformConfiguration, pluginMap, primaryFeatureId);
 		platformConfiguration.refresh();
 		platformConfiguration.save(new URL("file:" + configFile.getPath())); //$NON-NLS-1$
 	}

 	private static IPath getTransientSitePath(IPluginModelBase model) {
 		return new Path(model.getInstallLocation()).removeLastSegments(2);
 	}

 	private static void addToSite(
 		IPath path,
 		IPluginModelBase model,
 		ArrayList sites) {
 		if (path.getDevice() != null)
 			path = path.setDevice(path.getDevice().toUpperCase(Locale.ENGLISH));
 		for (int i = 0; i < sites.size(); i++) {
 			LocalSite localSite = (LocalSite) sites.get(i);
 			if (localSite.getPath().equals(path)) {
 				localSite.add(model);
 				return;
 			}
 		}
 		// First time - add site
 		LocalSite localSite = new LocalSite(path);
 		localSite.add(model);
 		sites.add(localSite);
 	}

 	private static void createConfigurationEntries(
 		IPlatformConfiguration config,
 		ArrayList sites)
 		throws CoreException, MalformedURLException {

 		for (int i = 0; i < sites.size(); i++) {
 			LocalSite localSite = (LocalSite) sites.get(i);
 			String[] plugins = localSite.getRelativePluginList();

 			int policy = IPlatformConfiguration.ISitePolicy.USER_INCLUDE;
 			IPlatformConfiguration.ISitePolicy sitePolicy =
 				config.createSitePolicy(policy, plugins);
 			IPlatformConfiguration.ISiteEntry siteEntry =
 				config.createSiteEntry(localSite.getURL(), sitePolicy);
 			config.configureSite(siteEntry);
 		}
 		config.isTransient(true);
 	}


 	private static void createFeatureEntries(
 		IPlatformConfiguration config,
 		Map pluginMap,
 		String brandingPluginID)
 		throws MalformedURLException {

 		// We have primary feature Id.
 		IFeatureModel featureModel = PDECore.getDefault().getFeatureModelManager().findFeatureModel(brandingPluginID);
 		if (featureModel == null)
 			return;

 		IFeature feature = featureModel.getFeature();
 		String featureVersion = feature.getVersion();
 		IPluginModelBase primaryPlugin = (IPluginModelBase)pluginMap.get(brandingPluginID);
 		if (primaryPlugin == null)
 			return;

 		URL pluginURL = new URL("file:" + primaryPlugin.getInstallLocation()); //$NON-NLS-1$
 		URL[] root = new URL[] { pluginURL };
 		IPlatformConfiguration.IFeatureEntry featureEntry =
 			config.createFeatureEntry(
 				brandingPluginID,
 				featureVersion,
 				brandingPluginID,
 				primaryPlugin.getPluginBase().getVersion(),
 				true,
 				null,
 				root);
 		config.configureFeatureEntry(featureEntry);
 	}

 	public static String getOS() {
 		String value = getProperty(OS);
 		return value.equals("") ? Platform.getOS() : value; //$NON-NLS-1$
 	}

 	public static String getWS() {
 		String value = getProperty(WS);
 		return value.equals("") ? Platform.getWS() : value; //$NON-NLS-1$
 	}

 	public static String getNL() {
 		String value = getProperty(NL);
 		return value.equals("") ? Platform.getNL() : value; //$NON-NLS-1$
 	}

 	public static String getOSArch() {
 		String value = getProperty(ARCH);
 		return value.equals("") ? Platform.getOSArch() : value; //$NON-NLS-1$
 	}

 	private static String getProperty(String key) {
 		return PDECore.getDefault().getPluginPreferences().getString(key);
 	}

 	public static String[] getApplicationNames() {
 		TreeSet result = new TreeSet();
 		IPluginModelBase[] plugins = PDECore.getDefault().getModelManager().getPlugins();
 		for (int i = 0; i < plugins.length; i++) {
 			IPluginExtension[] extensions = plugins[i].getPluginBase().getExtensions();
 			for (int j = 0; j < extensions.length; j++) {
 				String point = extensions[j].getPoint();
 				if (point != null && point.equals("org.eclipse.core.runtime.applications")) { //$NON-NLS-1$
 					String id = extensions[j].getPluginBase().getId();
 					if (id == null || id.trim().length() == 0 || id.startsWith("org.eclipse.pde.junit.runtime")) //$NON-NLS-1$
 						continue;
 					if (extensions[j].getId() != null)
 						result.add(id+ "." + extensions[j].getId());					 //$NON-NLS-1$
 				}
 			}
 		}
 		return (String[])result.toArray(new String[result.size()]);
 	}

 	public static TreeSet getProductNameSet() {
 		TreeSet result = new TreeSet();
 		IPluginModelBase[] plugins = PDECore.getDefault().getModelManager().getPlugins();
 		for (int i = 0; i < plugins.length; i++) {
 			IPluginExtension[] extensions = plugins[i].getPluginBase().getExtensions();
 			for (int j = 0; j < extensions.length; j++) {
 				String point = extensions[j].getPoint();
 				if (point != null && point.equals("org.eclipse.core.runtime.products")) {//$NON-NLS-1$
 					IPluginObject[] children = extensions[j].getChildren();
 					if (children.length != 1)
 						continue;
 					if (!"product".equals(children[0].getName())) //$NON-NLS-1$
 						continue;
 					String id = extensions[j].getPluginBase().getId();
 					if (id == null || id.trim().length() == 0)
 						continue;
 					if (extensions[j].getId() != null)
 						result.add(id+ "." + extensions[j].getId());					 //$NON-NLS-1$
 				}
 			}
 		}
 		return result;
 	}

 	public static String[] getProductNames() {
 		TreeSet result = getProductNameSet();
 		return (String[])result.toArray(new String[result.size()]);
 	}

 	public static Dictionary getTargetEnvironment() {
 		Dictionary result = new Hashtable();
 		result.put ("osgi.os", TargetPlatform.getOS()); //$NON-NLS-1$
 		result.put ("osgi.ws", TargetPlatform.getWS()); //$NON-NLS-1$
 		result.put ("osgi.nl", TargetPlatform.getNL()); //$NON-NLS-1$
 		result.put ("osgi.arch", TargetPlatform.getOSArch()); //$NON-NLS-1$
 		result.put("osgi.resolveOptional", "true"); //$NON-NLS-1$ //$NON-NLS-2$
 		return result;
 	}

 	public static String getTargetVersionString() {
 		return PDECore.getDefault().getModelManager().getTargetVersion();
 	}

 	public static double getTargetVersion() {
 		return Double.parseDouble(getTargetVersionString());
 	}

 	public static PDEState getPDEState() {
 		return PDECore.getDefault().getModelManager().getState();
 	}

 	public static State getState() {
 		return getPDEState().getState();
 	}

 	public static Map getPatchMap(PDEState state) {
 		HashMap properties = new HashMap();
 		PluginModelManager manager = PDECore.getDefault().getModelManager();
 		IPluginModelBase[] models = manager.getAllPlugins();
 		for (int i = 0; i < models.length; i++) {
 			BundleDescription desc = models[i].getBundleDescription();
 			if (desc == null)
 				continue;
 			Long id = new Long(desc.getBundleId());
 			if (ClasspathUtilCore.hasExtensibleAPI(models[i])) {
 				properties.put(id, ICoreConstants.EXTENSIBLE_API + ": true"); //$NON-NLS-1$
 			} else if (ClasspathUtilCore.isPatchFragment(models[i])) {
 				properties.put(id, ICoreConstants.PATCH_FRAGMENT + ": true"); //$NON-NLS-1$
 			}
 		}
 		return properties;
 	}

 	public static HashMap getBundleClasspaths(PDEState state) {
 		HashMap properties = new HashMap();
 		BundleDescription[] bundles = state.getState().getBundles();
 		for (int i = 0; i < bundles.length; i++) {
 			properties.put(new Long(bundles[i].getBundleId()), getValue(bundles[i], state));
 		}
 		return properties;
 	}

 	private static String[] getValue(BundleDescription bundle, PDEState state) {
 		IPluginModelBase model = PDECore.getDefault().getModelManager().findModel(bundle);
 		String[] result = null;
 		if (model != null) {
 			IPluginLibrary[] libs = model.getPluginBase().getLibraries();
 			result = new String[libs.length];
 			for (int i = 0; i < libs.length; i++) {
 				result[i] = libs[i].getName();
 			}
 		} else {
 			String[] libs = state.getLibraryNames(bundle.getBundleId());
 			result = new String[libs.length];
 			for (int i = 0; i < libs.length; i++) {
 				result[i] = libs[i];
 			}
 		}
 		if (result.length == 0)
 			return new String[] {"."}; //$NON-NLS-1$
 		return result;
 	}

 	public static String[] getFeaturePaths() {
 		IFeatureModel[] models = PDECore.getDefault().getFeatureModelManager().getModels();
 		ArrayList list = new ArrayList();
 		for (int i = 0; i < models.length; i++) {
 			String location = models[i].getInstallLocation();
 			if (location != null)
 				list.add(location + IPath.SEPARATOR + "feature.xml"); //$NON-NLS-1$
 		}
 		return (String[]) list.toArray(new String[list.size()]);
 	}

 	/**
 	 * Obtains product ID
 	 *
 	 * @return String or null
 	 */
 	public static String getDefaultProduct() {
 		Properties config = getConfigIniProperties();
 		if (config != null) {
 			String product = (String) config.get("eclipse.product"); //$NON-NLS-1$
 			if (product != null && getProductNameSet().contains(product))
 				return product;
 		}
 		Set set = getProductNameSet();
 		if (set.contains("org.eclipse.sdk.ide")) //$NON-NLS-1$
 			return "org.eclipse.sdk.ide"; //$NON-NLS-1$

 		return set.contains("org.eclipse.platform.ide") ? "org.eclipse.platform.ide" : null; //$NON-NLS-1$ //$NON-NLS-2$
 	}

 	public static boolean isRuntimeRefactored1() {
 		PluginModelManager manager = PDECore.getDefault().getModelManager();
 		return manager.findEntry("org.eclipse.equinox.common") != null; //$NON-NLS-1$
 	}

 	public static boolean isRuntimeRefactored2() {
 		PluginModelManager manager = PDECore.getDefault().getModelManager();
 		return manager.findEntry("org.eclipse.core.runtime.compatibility.registry") != null;		 //$NON-NLS-1$
 	}

 	public static boolean matchesCurrentEnvironment(IPluginModelBase model) {
         BundleContext context = PDECore.getDefault().getBundleContext();
 		Dictionary environment = getTargetEnvironment();
 		BundleDescription bundle = model.getBundleDescription();
         String filterSpec = bundle != null ? bundle.getPlatformFilter() : null;
         try {
 			return filterSpec == null|| context.createFilter(filterSpec).match(environment);
 		} catch (InvalidSyntaxException e) {
 			return false;
 		}
 	}

 }
	/*******************************************************************************
	* Copyright (c) 2000, 2006 IBM Corporation and others.
	* All rights reserved. This program and the accompanying materials
	* are made available under the terms of the Eclipse Public License v1.0
	* which accompanies this distribution, and is available at
	* http://www.eclipse.org/legal/epl-v10.html
	*
	* Contributors:
	* IBM Corporation - initial API and implementation
	*******************************************************************************/
	package org.eclipse.pde.internal.core;

	import java.io.File;
	import java.io.FileInputStream;
	import java.io.IOException;
	import java.net.MalformedURLException;
	import java.net.URL;
	import java.util.ArrayList;
	import java.util.Dictionary;
	import java.util.HashMap;
	import java.util.Hashtable;
	import java.util.Iterator;
	import java.util.Locale;
	import java.util.Map;
	import java.util.Properties;
	import java.util.Set;
	import java.util.StringTokenizer;
	import java.util.TreeSet;

	import org.eclipse.core.runtime.CoreException;
	import org.eclipse.core.runtime.IPath;
	import org.eclipse.core.runtime.IStatus;
	import org.eclipse.core.runtime.Path;
	import org.eclipse.core.runtime.Platform;
	import org.eclipse.core.runtime.Status;
	import org.eclipse.osgi.service.resolver.BundleDescription;
	import org.eclipse.osgi.service.resolver.State;
	import org.eclipse.osgi.util.ManifestElement;
	import org.eclipse.pde.core.plugin.IPluginExtension;
	import org.eclipse.pde.core.plugin.IPluginLibrary;
	import org.eclipse.pde.core.plugin.IPluginModelBase;
	import org.eclipse.pde.core.plugin.IPluginObject;
	import org.eclipse.pde.internal.core.ifeature.IFeature;
	import org.eclipse.pde.internal.core.ifeature.IFeatureModel;
	import org.eclipse.pde.internal.core.util.CoreUtility;
	import org.eclipse.update.configurator.ConfiguratorUtils;
	import org.eclipse.update.configurator.IPlatformConfiguration;
	import org.osgi.framework.BundleContext;
	import org.osgi.framework.BundleException;
	import org.osgi.framework.Constants;
	import org.osgi.framework.InvalidSyntaxException;

	public class TargetPlatform implements IEnvironmentVariables {

	private static String FILE_URL_PREFIX = "file:/"; //$NON-NLS-1$

	static class LocalSite {
	private ArrayList plugins;
	private IPath path;

	public LocalSite(IPath path) {
	if (path.getDevice() != null)
	this.path = path.setDevice(path.getDevice().toUpperCase(Locale.ENGLISH));
	else
	this.path = path;
	plugins = new ArrayList();
	}

	public IPath getPath() {
	return path;
	}

	public URL getURL() throws MalformedURLException {
	return new URL("file:" + path.removeTrailingSeparator()); //$NON-NLS-1$
	}

	public void add(IPluginModelBase model) {
	plugins.add(model);
	}

	public String[] getRelativePluginList() {
	String[] list = new String[plugins.size()];
	for (int i = 0; i < plugins.size(); i++) {
	IPluginModelBase model = (IPluginModelBase) plugins.get(i);
	IPath location = new Path(model.getInstallLocation());
	// defect 37319
	if (location.segmentCount() > 2)
	location = location.removeFirstSegments(location.segmentCount() - 2);
	//31489 - entry must be relative
	list[i] = location.setDevice(null).makeRelative().toString();
	}
	return list;
	}
	}

	private static Map fCachedLocations;

	public static Properties getConfigIniProperties() {
	File iniFile = new File(ExternalModelManager.getEclipseHome().toOSString(), "configuration/config.ini"); //$NON-NLS-1$
	if (!iniFile.exists())
	return null;
	Properties pini = new Properties();
	try {
	FileInputStream fis = new FileInputStream(iniFile);
	pini.load(fis);
	fis.close();
	return pini;
	} catch (IOException e) {
	}
	return null;
	}

	public static String getBundleList() {
	Properties properties = getConfigIniProperties();
	String osgiBundles = properties == null ? null : properties.getProperty("osgi.bundles"); //$NON-NLS-1$
	if (osgiBundles == null) {
	StringBuffer buffer = new StringBuffer();
	if (getTargetVersion() > 3.1) {
	buffer.append("org.eclipse.equinox.common@2:start,"); //$NON-NLS-1$
	buffer.append("org.eclipse.update.configurator@3:start,"); //$NON-NLS-1$
	buffer.append("org.eclipse.core.runtime@start"); //$NON-NLS-1$
	} else {
	buffer.append("org.eclipse.core.runtime@2:start,"); //$NON-NLS-1$
	buffer.append("org.eclipse.update.configurator@3:start"); //$NON-NLS-1$
	}
	osgiBundles = buffer.toString();
	} else {
	osgiBundles = stripPathInformation(osgiBundles);
	}
	return osgiBundles;
	}

	public static String stripPathInformation(String osgiBundles) {
	osgiBundles = osgiBundles.replaceAll("\\s", ""); //$NON-NLS-1$ //$NON-NLS-2$
	StringBuffer result = new StringBuffer();
	StringTokenizer tokenizer = new StringTokenizer(osgiBundles, ","); //$NON-NLS-1$
	while (tokenizer.hasMoreElements()) {
	String token = tokenizer.nextToken();
	int index = token.indexOf('@');

	// read up until the first @, if there
	String bundle = index > 0 ? token.substring(0, index) : token;

	// if the path is relative, the last segment is the bundle symbolic name
	// Otherwise, we need to retrieve the bundle symbolic name ourselves
	IPath path = new Path(bundle);
	String id = path.isAbsolute() ? getSymbolicName(bundle) : path.lastSegment();
	if (result.length() > 0)
	result.append(","); //$NON-NLS-1$
	result.append(id != null ? id : bundle);
	if (index > -1)
	result.append(token.substring(index));
	}
	return result.toString();
	}

	private static synchronized String getSymbolicName(String path) {
	if (fCachedLocations == null)
	fCachedLocations = new HashMap();
	if (path.startsWith(FILE_URL_PREFIX))
	path = path.substring(FILE_URL_PREFIX.length());

	File file = new File(path);
	if (file.exists() && !fCachedLocations.containsKey(path)) {
	try {
	Dictionary dictionary = MinimalState.loadManifest(file);
	String value = (String)dictionary.get(Constants.BUNDLE_SYMBOLICNAME);
	if (value != null) {
	ManifestElement[] elements = ManifestElement.parseHeader(Constants.BUNDLE_SYMBOLICNAME, value);
	String id = elements.length > 0 ? elements[0].getValue() : null;
	if (id != null)
	fCachedLocations.put(path, elements[0].getValue());
	}
	} catch (IOException e) {
	} catch (BundleException e) {
	}
	}
	return (String)fCachedLocations.get(path);
	}


	public static void createPlatformConfigurationArea(
	Map pluginMap,
	File configDir,
	String brandingPluginID)
	throws CoreException {
	try {
	if (pluginMap.containsKey("org.eclipse.update.configurator")) //$NON-NLS-1$
	savePlatformConfiguration(ConfiguratorUtils.getPlatformConfiguration(null),configDir, pluginMap, brandingPluginID);
	checkPluginPropertiesConsistency(pluginMap, configDir);
	} catch (CoreException e) {
	// Rethrow
	throw e;
	} catch (Exception e) {
	// Wrap everything else in a core exception.
	String message = e.getMessage();
	if (message==null \|\| message.length() == 0)
	message = PDECoreMessages.TargetPlatform_exceptionThrown;
	throw new CoreException(
	new Status(
	IStatus.ERROR,
	PDECore.getPluginId(),
	IStatus.ERROR,
	message,
	e));
	}
	}

	private static void checkPluginPropertiesConsistency(Map map, File configDir) {
	File runtimeDir = new File(configDir, "org.eclipse.core.runtime"); //$NON-NLS-1$
	if (runtimeDir.exists() && runtimeDir.isDirectory()) {
	long timestamp = runtimeDir.lastModified();
	Iterator iter = map.values().iterator();
	while (iter.hasNext()) {
	if (hasChanged((IPluginModelBase)iter.next(), timestamp)) {
	CoreUtility.deleteContent(runtimeDir);
	break;
	}
	}
	}
	}

	private static boolean hasChanged(IPluginModelBase model, long timestamp) {
	if (model.getUnderlyingResource() != null) {
	File[] files = new File(model.getInstallLocation()).listFiles();
	for (int i = 0; i < files.length; i++) {
	if (files[i].isDirectory())
	continue;
	String name = files[i].getName();
	if (name.startsWith("plugin") && name.endsWith(".properties") //$NON-NLS-1$ //$NON-NLS-2$
	&& files[i].lastModified() > timestamp) {
	return true;
	}
	}
	}
	return false;
	}

	private static void savePlatformConfiguration(
	IPlatformConfiguration platformConfiguration,
	File configFile,
	Map pluginMap,
	String primaryFeatureId)
	throws IOException, CoreException, MalformedURLException {
	ArrayList sites = new ArrayList();

	// Compute local sites
	Iterator iter = pluginMap.values().iterator();
	while(iter.hasNext()) {
	IPluginModelBase model = (IPluginModelBase)iter.next();
	IPath sitePath = getTransientSitePath(model);
	addToSite(sitePath, model, sites);
	}

	createConfigurationEntries(platformConfiguration,sites);
	if (primaryFeatureId != null)
	createFeatureEntries(platformConfiguration, pluginMap, primaryFeatureId);
	platformConfiguration.refresh();
	platformConfiguration.save(new URL("file:" + configFile.getPath())); //$NON-NLS-1$
	}

	private static IPath getTransientSitePath(IPluginModelBase model) {
	return new Path(model.getInstallLocation()).removeLastSegments(2);
	}

	private static void addToSite(
	IPath path,
	IPluginModelBase model,
	ArrayList sites) {
	if (path.getDevice() != null)
	path = path.setDevice(path.getDevice().toUpperCase(Locale.ENGLISH));
	for (int i = 0; i < sites.size(); i++) {
	LocalSite localSite = (LocalSite) sites.get(i);
	if (localSite.getPath().equals(path)) {
	localSite.add(model);
	return;
	}
	}
	// First time - add site
	LocalSite localSite = new LocalSite(path);
	localSite.add(model);
	sites.add(localSite);
	}

	private static void createConfigurationEntries(
	IPlatformConfiguration config,
	ArrayList sites)
	throws CoreException, MalformedURLException {

	for (int i = 0; i < sites.size(); i++) {
	LocalSite localSite = (LocalSite) sites.get(i);
	String[] plugins = localSite.getRelativePluginList();

	int policy = IPlatformConfiguration.ISitePolicy.USER_INCLUDE;
	IPlatformConfiguration.ISitePolicy sitePolicy =
	config.createSitePolicy(policy, plugins);
	IPlatformConfiguration.ISiteEntry siteEntry =
	config.createSiteEntry(localSite.getURL(), sitePolicy);
	config.configureSite(siteEntry);
	}
	config.isTransient(true);
	}


	private static void createFeatureEntries(
	IPlatformConfiguration config,
	Map pluginMap,
	String brandingPluginID)
	throws MalformedURLException {

	// We have primary feature Id.
	IFeatureModel featureModel = PDECore.getDefault().getFeatureModelManager().findFeatureModel(brandingPluginID);
	if (featureModel == null)
	return;

	IFeature feature = featureModel.getFeature();
	String featureVersion = feature.getVersion();
	IPluginModelBase primaryPlugin = (IPluginModelBase)pluginMap.get(brandingPluginID);
	if (primaryPlugin == null)
	return;

	URL pluginURL = new URL("file:" + primaryPlugin.getInstallLocation()); //$NON-NLS-1$
	URL[] root = new URL[] { pluginURL };
	IPlatformConfiguration.IFeatureEntry featureEntry =
	config.createFeatureEntry(
	brandingPluginID,
	featureVersion,
	brandingPluginID,
	primaryPlugin.getPluginBase().getVersion(),
	true,
	null,
	root);
	config.configureFeatureEntry(featureEntry);
	}

	public static String getOS() {
	String value = getProperty(OS);
	return value.equals("") ? Platform.getOS() : value; //$NON-NLS-1$
	}

	public static String getWS() {
	String value = getProperty(WS);
	return value.equals("") ? Platform.getWS() : value; //$NON-NLS-1$
	}

	public static String getNL() {
	String value = getProperty(NL);
	return value.equals("") ? Platform.getNL() : value; //$NON-NLS-1$
	}

	public static String getOSArch() {
	String value = getProperty(ARCH);
	return value.equals("") ? Platform.getOSArch() : value; //$NON-NLS-1$
	}

	private static String getProperty(String key) {
	return PDECore.getDefault().getPluginPreferences().getString(key);
	}

	public static String[] getApplicationNames() {
	TreeSet result = new TreeSet();
	IPluginModelBase[] plugins = PDECore.getDefault().getModelManager().getPlugins();
	for (int i = 0; i < plugins.length; i++) {
	IPluginExtension[] extensions = plugins[i].getPluginBase().getExtensions();
	for (int j = 0; j < extensions.length; j++) {
	String point = extensions[j].getPoint();
	if (point != null && point.equals("org.eclipse.core.runtime.applications")) { //$NON-NLS-1$
	String id = extensions[j].getPluginBase().getId();
	if (id == null \|\| id.trim().length() == 0 \|\| id.startsWith("org.eclipse.pde.junit.runtime")) //$NON-NLS-1$
	continue;
	if (extensions[j].getId() != null)
	result.add(id+ "." + extensions[j].getId()); //$NON-NLS-1$
	}
	}
	}
	return (String[])result.toArray(new String[result.size()]);
	}

	public static TreeSet getProductNameSet() {
	TreeSet result = new TreeSet();
	IPluginModelBase[] plugins = PDECore.getDefault().getModelManager().getPlugins();
	for (int i = 0; i < plugins.length; i++) {
	IPluginExtension[] extensions = plugins[i].getPluginBase().getExtensions();
	for (int j = 0; j < extensions.length; j++) {
	String point = extensions[j].getPoint();
	if (point != null && point.equals("org.eclipse.core.runtime.products")) {//$NON-NLS-1$
	IPluginObject[] children = extensions[j].getChildren();
	if (children.length != 1)
	continue;
	if (!"product".equals(children[0].getName())) //$NON-NLS-1$
	continue;
	String id = extensions[j].getPluginBase().getId();
	if (id == null \|\| id.trim().length() == 0)
	continue;
	if (extensions[j].getId() != null)
	result.add(id+ "." + extensions[j].getId()); //$NON-NLS-1$
	}
	}
	}
	return result;
	}

	public static String[] getProductNames() {
	TreeSet result = getProductNameSet();
	return (String[])result.toArray(new String[result.size()]);
	}

	public static Dictionary getTargetEnvironment() {
	Dictionary result = new Hashtable();
	result.put ("osgi.os", TargetPlatform.getOS()); //$NON-NLS-1$
	result.put ("osgi.ws", TargetPlatform.getWS()); //$NON-NLS-1$
	result.put ("osgi.nl", TargetPlatform.getNL()); //$NON-NLS-1$
	result.put ("osgi.arch", TargetPlatform.getOSArch()); //$NON-NLS-1$
	result.put("osgi.resolveOptional", "true"); //$NON-NLS-1$ //$NON-NLS-2$
	return result;
	}

	public static String getTargetVersionString() {
	return PDECore.getDefault().getModelManager().getTargetVersion();
	}

	public static double getTargetVersion() {
	return Double.parseDouble(getTargetVersionString());
	}

	public static PDEState getPDEState() {
	return PDECore.getDefault().getModelManager().getState();
	}

	public static State getState() {
	return getPDEState().getState();
	}

	public static Map getPatchMap(PDEState state) {
	HashMap properties = new HashMap();
	PluginModelManager manager = PDECore.getDefault().getModelManager();
	IPluginModelBase[] models = manager.getAllPlugins();
	for (int i = 0; i < models.length; i++) {
	BundleDescription desc = models[i].getBundleDescription();
	if (desc == null)
	continue;
	Long id = new Long(desc.getBundleId());
	if (ClasspathUtilCore.hasExtensibleAPI(models[i])) {
	properties.put(id, ICoreConstants.EXTENSIBLE_API + ": true"); //$NON-NLS-1$
	} else if (ClasspathUtilCore.isPatchFragment(models[i])) {
	properties.put(id, ICoreConstants.PATCH_FRAGMENT + ": true"); //$NON-NLS-1$
	}
	}
	return properties;
	}

	public static HashMap getBundleClasspaths(PDEState state) {
	HashMap properties = new HashMap();
	BundleDescription[] bundles = state.getState().getBundles();
	for (int i = 0; i < bundles.length; i++) {
	properties.put(new Long(bundles[i].getBundleId()), getValue(bundles[i], state));
	}
	return properties;
	}

	private static String[] getValue(BundleDescription bundle, PDEState state) {
	IPluginModelBase model = PDECore.getDefault().getModelManager().findModel(bundle);
	String[] result = null;
	if (model != null) {
	IPluginLibrary[] libs = model.getPluginBase().getLibraries();
	result = new String[libs.length];
	for (int i = 0; i < libs.length; i++) {
	result[i] = libs[i].getName();
	}
	} else {
	String[] libs = state.getLibraryNames(bundle.getBundleId());
	result = new String[libs.length];
	for (int i = 0; i < libs.length; i++) {
	result[i] = libs[i];
	}
	}
	if (result.length == 0)
	return new String[] {"."}; //$NON-NLS-1$
	return result;
	}

	public static String[] getFeaturePaths() {
	IFeatureModel[] models = PDECore.getDefault().getFeatureModelManager().getModels();
	ArrayList list = new ArrayList();
	for (int i = 0; i < models.length; i++) {
	String location = models[i].getInstallLocation();
	if (location != null)
	list.add(location + IPath.SEPARATOR + "feature.xml"); //$NON-NLS-1$
	}
	return (String[]) list.toArray(new String[list.size()]);
	}

	/**
	* Obtains product ID
	*
	* @return String or null
	*/
	public static String getDefaultProduct() {
	Properties config = getConfigIniProperties();
	if (config != null) {
	String product = (String) config.get("eclipse.product"); //$NON-NLS-1$
	if (product != null && getProductNameSet().contains(product))
	return product;
	}
	Set set = getProductNameSet();
	if (set.contains("org.eclipse.sdk.ide")) //$NON-NLS-1$
	return "org.eclipse.sdk.ide"; //$NON-NLS-1$

	return set.contains("org.eclipse.platform.ide") ? "org.eclipse.platform.ide" : null; //$NON-NLS-1$ //$NON-NLS-2$
	}

	public static boolean isRuntimeRefactored1() {
	PluginModelManager manager = PDECore.getDefault().getModelManager();
	return manager.findEntry("org.eclipse.equinox.common") != null; //$NON-NLS-1$
	}

	public static boolean isRuntimeRefactored2() {
	PluginModelManager manager = PDECore.getDefault().getModelManager();
	return manager.findEntry("org.eclipse.core.runtime.compatibility.registry") != null; //$NON-NLS-1$
	}

	public static boolean matchesCurrentEnvironment(IPluginModelBase model) {
	BundleContext context = PDECore.getDefault().getBundleContext();
	Dictionary environment = getTargetEnvironment();
	BundleDescription bundle = model.getBundleDescription();
	String filterSpec = bundle != null ? bundle.getPlatformFilter() : null;
	try {
	return filterSpec == null\|\| context.createFilter(filterSpec).match(environment);
	} catch (InvalidSyntaxException e) {
	return false;
	}
	}

	}