bundles/org.eclipse.team.core/src/org/eclipse/team/core/Team.java - gerrit/platform/eclipse.platform.team - Git at Google

 /*******************************************************************************
  * 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.team.core;

 import java.io.*;
 import java.util.*;

 import org.eclipse.core.resources.*;
 import org.eclipse.core.runtime.*;
 import org.eclipse.core.runtime.Preferences.PropertyChangeEvent;
 import org.eclipse.team.internal.core.*;

 /**
  * The Team class provides a global point of reference for the global ignore set
  * and the text/binary registry.
  *
  * WVCM: how does the IProjectSetSerializer fit into the 3.0 team api?
  *
  * @since 2.0
  */
 public final class Team {

 	private static final String PREF_TEAM_IGNORES = "ignore_files"; //$NON-NLS-1$
 	private static final String PREF_TEAM_TYPES = "file_types"; //$NON-NLS-1$
 	private static final String PREF_TEAM_SEPARATOR = "\n"; //$NON-NLS-1$
 	public static final Status OK_STATUS = new Status(Status.OK, TeamPlugin.ID, Status.OK, Policy.bind("ok"), null); //$NON-NLS-1$

 	// File type constants
 	public static final int UNKNOWN = 0;
 	public static final int TEXT = 1;
 	public static final int BINARY = 2;

 	// Keys: file extensions. Values: Integers
 	private static SortedMap globalTypes, pluginTypes;

 	// The ignore list that is read at startup from the persisted file
 	private static SortedMap globalIgnore, pluginIgnore;
 	private static StringMatcher[] ignoreMatchers;

 	private static class FileTypeInfo implements IFileTypeInfo {
 		private String extension;
 		private int type;

 		public FileTypeInfo(String extension, int type) {
 			this.extension = extension;
 			this.type = type;
 		}
 		public String getExtension() {
 			return extension;
 		}
 		public int getType() {
 			return type;
 		}
 	}

 	/**
 	 * Return the type of the given IStorage.
 	 *
 	 * Valid return values are:
 	 * Team.TEXT
 	 * Team.BINARY
 	 * Team.UNKNOWN
 	 *
 	 * @param storage  the IStorage
 	 * @return whether the given IStorage is TEXT, BINARY, or UNKNOWN
 	 */
 	public static int getType(IStorage storage) {
 		String extension = getFileExtension(storage.getName());
 		if (extension == null) return UNKNOWN;
 		SortedMap table = getFileTypeTable();
 		Integer integer = (Integer)table.get(extension);
 		if (integer == null) return UNKNOWN;
 		return integer.intValue();
 	}

 	/**
 	 * Returns whether the given file should be ignored.
 	 *
 	 * This method answers true if the file matches one of the global ignore
 	 * patterns, or if the file is marked as derived.
 	 *
 	 * @param file  the file
 	 * @return whether the file should be ignored
 	 */
 	public static boolean isIgnoredHint(IResource resource) {
 		if (resource.isDerived()) return true;
 		return matchesEnabledIgnore(resource);
 	}

 	/**
 	 * Returns whether the given file should be ignored.
 	 * @deprecated use isIgnoredHint(IResource) instead
 	 */
 	public static boolean isIgnoredHint(IFile file) {
 		if (file.isDerived()) return true;
 		return matchesEnabledIgnore(file);
 	}

 	private static boolean matchesEnabledIgnore(IResource resource) {
 		StringMatcher[] matchers = getStringMatchers();
 		for (int i = 0; i < matchers.length; i++) {
 			if (matchers[i].match(resource.getName())) return true;
 		}
 		return false;
 	}

 	/**
 	 * Returns whether the given file should be ignored.
 	 * @deprecated use isIgnoredHint instead
 	 */
 	public static boolean isIgnored(IFile file) {
 		return matchesEnabledIgnore(file);
 	}

 	private static IFileTypeInfo[] getFileTypeInfo(SortedMap map)  {
 		List result = new ArrayList();
 		Iterator e = map.keySet().iterator();
 		while (e.hasNext()) {
 			String string = (String)e.next();
 			int type = ((Integer)map.get(string)).intValue();
 			result.add(new FileTypeInfo(string, type));
 		}
 		return (IFileTypeInfo[])result.toArray(new IFileTypeInfo[result.size()]);
 	}

 	/**
 	 * Return all known file types.
 	 *
 	 * @return all known file types
 	 */
 	public static IFileTypeInfo[] getAllTypes() {
 		return getFileTypeInfo(getFileTypeTable());
 	}

 	/**
 	 * Returns the list of global ignores.
 	 */
 	public synchronized static IIgnoreInfo[] getAllIgnores() {
 		// The ignores are cached and when the preferences change the
 		// cache is cleared. This makes it faster to lookup without having
 		// to re-parse the preferences.
 		if (globalIgnore == null) {
 			globalIgnore = new TreeMap();
 			pluginIgnore = new TreeMap();
 			ignoreMatchers = null;
 			try {
 				readIgnoreState();
 			} catch (TeamException e) {
 				TeamPlugin.log(IStatus.ERROR, Policy.bind("Team.Error_loading_ignore_state_from_disk_1"), e); //$NON-NLS-1$
 			}
 			initializePluginIgnores(pluginIgnore, globalIgnore);
 		}
 		IIgnoreInfo[] result = getIgnoreInfo(globalIgnore);
 		return result;
 	}

 	private static IIgnoreInfo[] getIgnoreInfo(Map gIgnore) {
 		IIgnoreInfo[] result = new IIgnoreInfo[gIgnore.size()];
 		Iterator e = gIgnore.keySet().iterator();
 		int i = 0;
 		while (e.hasNext() ) {
 			final String pattern = (String)e.next();
 			final boolean enabled = ((Boolean)gIgnore.get(pattern)).booleanValue();
 			result[i++] = new IIgnoreInfo() {
 				private String p = pattern;
 				private boolean e = enabled;
 				public String getPattern() {
 					return p;
 				}
 				public boolean getEnabled() {
 					return e;
 				}
 			};
 		}
 		return result;
 	}

 	private synchronized static StringMatcher[] getStringMatchers() {
 		if (ignoreMatchers==null) {
 			IIgnoreInfo[] ignorePatterns = getAllIgnores();
 			Vector matchers = new Vector(ignorePatterns.length);
 			for (int i = 0; i < ignorePatterns.length; i++) {
 				if (ignorePatterns[i].getEnabled()) {
 					matchers.add(new StringMatcher(ignorePatterns[i].getPattern(), true, false));
 				}
 			}
 			ignoreMatchers = new StringMatcher[matchers.size()];
 			matchers.copyInto(ignoreMatchers);
 		}
 		return ignoreMatchers;
 	}

 	private synchronized static SortedMap getFileTypeTable() {
 		// The types are cached and when the preferences change the
 		// cache is cleared. This makes it faster to lookup without having
 		// to re-parse the preferences.
 		if (globalTypes == null) loadTextState();
 		return globalTypes;
 	}

 	/**
 	 * Set the file type for the give extension to the given type.
 	 *
 	 * Valid types are:
 	 * Team.TEXT
 	 * Team.BINARY
 	 * Team.UNKNOWN
 	 *
 	 * @param extension  the file extension
 	 * @param type  the file type
 	 */
 	public static void setAllTypes(String[] extensions, int[] types) {
 		if (pluginTypes == null) {
 			loadTextState();
 		}
 		globalTypes = new TreeMap();
 		for (int i = 0; i < extensions.length; i++) {
 			globalTypes.put(extensions[i], new Integer(types[i]));
 		}
 		// Now set into preferences
 		StringBuffer buf = new StringBuffer();
 		Iterator e = globalTypes.keySet().iterator();
 		while (e.hasNext()) {
 			String extension = (String)e.next();
 			boolean isCustom = (!pluginTypes.containsKey(extension)) ||
 				!((Integer)pluginTypes.get(extension)).equals(pluginTypes.get(extension));
 			if (isCustom) {
 				buf.append(extension);
 				buf.append(PREF_TEAM_SEPARATOR);
 				Integer type = (Integer)globalTypes.get(extension);
 				buf.append(type);
 				buf.append(PREF_TEAM_SEPARATOR);
 			}

 		}
 		TeamPlugin.getPlugin().getPluginPreferences().setValue(PREF_TEAM_TYPES, buf.toString());
 	}

 	/**
 	 * Add patterns to the list of global ignores.
 	 */
 	public static void setAllIgnores(String[] patterns, boolean[] enabled) {
 		globalIgnore = new TreeMap();
 		ignoreMatchers = null;
 		for (int i = 0; i < patterns.length; i++) {
 			globalIgnore.put(patterns[i], new Boolean(enabled[i]));
 		}
 		// Now set into preferences
 		StringBuffer buf = new StringBuffer();
 		Iterator e = globalIgnore.keySet().iterator();
 		while (e.hasNext()) {
 			String pattern = (String)e.next();
 			boolean isCustom = (!pluginIgnore.containsKey(pattern)) ||
 				!((Boolean)pluginIgnore.get(pattern)).equals(globalIgnore.get(pattern));
 			if (isCustom) {
 				buf.append(pattern);
 				buf.append(PREF_TEAM_SEPARATOR);
 				boolean en = ((Boolean)globalIgnore.get(pattern)).booleanValue();
 				buf.append(en);
 				buf.append(PREF_TEAM_SEPARATOR);
 			}

 		}
 		TeamPlugin.getPlugin().getPluginPreferences().setValue(PREF_TEAM_IGNORES, buf.toString());
 	}

 	/*
 	 * TEXT
 	 *
 	 * Reads the text patterns currently defined by extensions.
 	 */
 	private static void initializePluginPatterns(Map pTypes, Map fTypes) {
 		TeamPlugin plugin = TeamPlugin.getPlugin();
 		if (plugin != null) {
 			IExtensionPoint extension = plugin.getDescriptor().getExtensionPoint(TeamPlugin.FILE_TYPES_EXTENSION);
 			if (extension != null) {
 				IExtension[] extensions =  extension.getExtensions();
 				for (int i = 0; i < extensions.length; i++) {
 					IConfigurationElement[] configElements = extensions[i].getConfigurationElements();
 					for (int j = 0; j < configElements.length; j++) {
 						String ext = configElements[j].getAttribute("extension"); //$NON-NLS-1$
 						if (ext != null) {
 							String type = configElements[j].getAttribute("type"); //$NON-NLS-1$
 							// If the extension doesn't already exist, add it.
 							if (!fTypes.containsKey(ext)) {
 								if (type.equals("text")) { //$NON-NLS-1$
 									pTypes.put(ext, new Integer(TEXT));
 									fTypes.put(ext, new Integer(TEXT));
 								} else if (type.equals("binary")) { //$NON-NLS-1$
 									fTypes.put(ext, new Integer(BINARY));
 									pTypes.put(ext, new Integer(BINARY));
 								}
 							}
 						}
 					}
 				}
 			}
 		}
 	}

 	/*
 	 * TEXT
 	 *
 	 * Read the saved file type state from the given input stream.
 	 *
 	 * @param dis  the input stream to read the saved state from
 	 * @throws IOException if an I/O problem occurs
 	 */
 	private static void readTextState(DataInputStream dis) throws IOException {
 		int extensionCount = 0;
 		try {
 			extensionCount = dis.readInt();
 		} catch (EOFException e) {
 			// Ignore the exception, it will occur if there are no
 			// patterns stored in the state file.
 			return;
 		}
 		for (int i = 0; i < extensionCount; i++) {
 			String extension = dis.readUTF();
 			int type = dis.readInt();
 			globalTypes.put(extension, new Integer(type));
 		}
 	}

 	/*
 	 * TEXT
 	 *
 	 * Load the file type registry saved state. This loads the previously saved
 	 * contents, as well as discovering any values contributed by plug-ins.
 	 */
 	private static void loadTextState() {
 		globalTypes = new TreeMap();
 		boolean old = loadBackwardCompatibleTextState();
 		if (!old) loadTextPreferences();
 		pluginTypes = new TreeMap();
 		initializePluginPatterns(pluginTypes, globalTypes);
 		if (old) TeamPlugin.getPlugin().savePluginPreferences();
 	}

 	private static void loadTextPreferences() {
 		Preferences pref = TeamPlugin.getPlugin().getPluginPreferences();
 		if (!pref.contains(PREF_TEAM_TYPES)) return;
 		pref.addPropertyChangeListener(new Preferences.IPropertyChangeListener() {
 			public void propertyChange(PropertyChangeEvent event) {
 				// when a property is changed, invalidate our cache so that
 				// properties will be recalculated.
 				if(event.getProperty().equals(PREF_TEAM_TYPES))
 					globalTypes = null;
 			}
 		});
 		String prefTypes = pref.getString(PREF_TEAM_TYPES);
 		StringTokenizer tok = new StringTokenizer(prefTypes, PREF_TEAM_SEPARATOR);
 		String extension, integer;
 		try {
 			while (true) {
 				extension = tok.nextToken();
 				if (extension.length()==0) return;
 				integer = tok.nextToken();
 				globalTypes.put(extension, Integer.valueOf(integer));
 			}
 		} catch (NoSuchElementException e) {
 			return;
 		}

 	}
 	/*
 	 * If the workspace is an old 2.0 one, read the old file and delete it
 	 */
 	private static boolean loadBackwardCompatibleTextState() {
 		// File name of the persisted file type information
 		String STATE_FILE = ".fileTypes"; //$NON-NLS-1$
 		IPath pluginStateLocation = TeamPlugin.getPlugin().getStateLocation().append(STATE_FILE);
 		File f = pluginStateLocation.toFile();
 		if (!f.exists()) return false;
 		try {
 			DataInputStream dis = new DataInputStream(new FileInputStream(f));
 			try {
 				readTextState(dis);
 			} finally {
 				dis.close();
 			}
 		} catch (IOException ex) {
 			TeamPlugin.log(Status.ERROR, ex.getMessage(), ex);
 			return false;
 		}
 		f.delete();
 		return true;
 	}

 	/*
 	 * IGNORE
 	 *
 	 * Reads the ignores currently defined by extensions.
 	 */
 	private static void initializePluginIgnores(SortedMap pIgnore, SortedMap gIgnore) {
 		TeamPlugin plugin = TeamPlugin.getPlugin();
 		if (plugin != null) {
 			IExtensionPoint extension = plugin.getDescriptor().getExtensionPoint(TeamPlugin.IGNORE_EXTENSION);
 			if (extension != null) {
 				IExtension[] extensions =  extension.getExtensions();
 				for (int i = 0; i < extensions.length; i++) {
 					IConfigurationElement [] configElements = extensions[i].getConfigurationElements();
 					for (int j = 0; j < configElements.length; j++) {
 						String pattern = configElements[j].getAttribute("pattern"); //$NON-NLS-1$
 						if (pattern != null) {
 							String selected = configElements[j].getAttribute("enabled"); //$NON-NLS-1$
 							if (selected == null) {
 								// Check for selected because this used to be the field name
 								selected = configElements[j].getAttribute("selected"); //$NON-NLS-1$
 							}
 							boolean enabled = selected != null && selected.equalsIgnoreCase("true"); //$NON-NLS-1$
 							// if this ignore doesn't already exist, add it to the global list
 							pIgnore.put(pattern, new Boolean(enabled));
 							if (!gIgnore.containsKey(pattern)) {
 								gIgnore.put(pattern, new Boolean(enabled));
 							}
 						}
 					}
 				}
 			}
 		}
 	}

 	/*
 	 * IGNORE
 	 *
 	 * Reads global ignore preferences and populates globalIgnore
 	 */
 	private static void readIgnoreState() throws TeamException {
 		if (readBackwardCompatibleIgnoreState()) return;
 		Preferences pref = TeamPlugin.getPlugin().getPluginPreferences();
 		if (!pref.contains(PREF_TEAM_IGNORES)) return;
 		pref.addPropertyChangeListener(new Preferences.IPropertyChangeListener() {
 			public void propertyChange(PropertyChangeEvent event) {
 				// when a property is changed, invalidate our cache so that
 				// properties will be recalculated.
 				if(event.getProperty().equals(PREF_TEAM_IGNORES))
 					globalIgnore = null;
 			}
 		});
 		String prefIgnores = pref.getString(PREF_TEAM_IGNORES);
 		StringTokenizer tok = new StringTokenizer(prefIgnores, PREF_TEAM_SEPARATOR);
 		String pattern, enabled;
 		try {
 			while (true) {
 				pattern = tok.nextToken();
 				if (pattern.length()==0) return;
 				enabled = tok.nextToken();
 				globalIgnore.put(pattern, new Boolean(enabled));
 			}
 		} catch (NoSuchElementException e) {
 			return;
 		}
 	}

 	/*
 	 * For backward compatibility, we still look at if we have .globalIgnores
 	 */
 	private static boolean readBackwardCompatibleIgnoreState() throws TeamException {
 		String GLOBALIGNORE_FILE = ".globalIgnores"; //$NON-NLS-1$
 		IPath pluginStateLocation = TeamPlugin.getPlugin().getStateLocation().append(GLOBALIGNORE_FILE);
 		File f = pluginStateLocation.toFile();
 		if (!f.exists()) return false;
 		try {
 			DataInputStream dis = new DataInputStream(new FileInputStream(f));
 			try {
 				int ignoreCount = 0;
 				try {
 					ignoreCount = dis.readInt();
 				} catch (EOFException e) {
 					// Ignore the exception, it will occur if there are no ignore
 					// patterns stored in the provider state file.
 					return false;
 				}
 				for (int i = 0; i < ignoreCount; i++) {
 					String pattern = dis.readUTF();
 					boolean enabled = dis.readBoolean();
 					globalIgnore.put(pattern, new Boolean(enabled));
 				}
 			} finally {
 				dis.close();
 			}
 			f.delete();
 		} catch (FileNotFoundException e) {
 			// not a fatal error, there just happens not to be any state to read
 		} catch (IOException ex) {
 			throw new TeamException(new Status(IStatus.ERROR, TeamPlugin.ID, 0, Policy.bind("Team.readError"), ex));			 //$NON-NLS-1$
 		}
 		return true;
 	}
 	/**
 	 * Initialize the registry, restoring its state.
 	 *
 	 * This method is called by the plug-in upon startup, clients should not call this method
 	 */
 	public static void startup() throws CoreException {
 		// Register a delta listener that will tell the provider about a project move
 		ResourcesPlugin.getWorkspace().addResourceChangeListener(new IResourceChangeListener() {
 			public void resourceChanged(IResourceChangeEvent event) {
 				IResourceDelta[] projectDeltas = event.getDelta().getAffectedChildren();
 				for (int i = 0; i < projectDeltas.length; i++) {
 					IResourceDelta delta = projectDeltas[i];
 					IResource resource = delta.getResource();
 					// Only consider project additions that are moves
 					if (delta.getKind() != IResourceDelta.ADDED) continue;
 					if ((delta.getFlags() & IResourceDelta.MOVED_FROM) == 0) continue;
 					// Only consider projects that have a provider
 					if (!RepositoryProvider.isShared(resource.getProject())) continue;
 					RepositoryProvider provider = RepositoryProvider.getProvider(resource.getProject());
 					if (provider == null) continue;
 					// Only consider providers whose project is not mapped properly already
 					if (provider.getProject().equals(resource.getProject())) continue;
 					// Tell the provider about it's new project
 					provider.setProject(resource.getProject());
 				}
 			}
 		}, IResourceChangeEvent.POST_CHANGE);
 	}

 	/**
 	 * Shut down the registry, persisting its state.
 	 *
 	 * This method is called by the plug-in upon shutdown, clients should not call this method
 	 */
 	public static void shutdown() {
 		TeamPlugin.getPlugin().savePluginPreferences();
 	}
 	/**
 	 * @deprecated
 	 * 		Use {@link org.eclipse.team.core.RepositoryProviderType#getProjectSetSerializer()}
 	 * 		to obtain an instance of {@link org.eclipse.team.core.ProjectSetSerializer} instead.
 	 */
 	public static IProjectSetSerializer getProjectSetSerializer(String id) {
 		TeamPlugin plugin = TeamPlugin.getPlugin();
 		if (plugin != null) {
 			IExtensionPoint extension = plugin.getDescriptor().getExtensionPoint(TeamPlugin.PROJECT_SET_EXTENSION);
 			if (extension != null) {
 				IExtension[] extensions =  extension.getExtensions();
 				for (int i = 0; i < extensions.length; i++) {
 					IConfigurationElement [] configElements = extensions[i].getConfigurationElements();
 					for (int j = 0; j < configElements.length; j++) {
 						String extensionId = configElements[j].getAttribute("id"); //$NON-NLS-1$
 						if (extensionId != null && extensionId.equals(id)) {
 							try {
 								return (IProjectSetSerializer)configElements[j].createExecutableExtension("class"); //$NON-NLS-1$
 							} catch (CoreException e) {
 								TeamPlugin.log(e);
 								return null;
 							}
 						}
 					}
 				}
 			}
 		}
 		return null;
 	}
 	private static TeamException wrapException(String message, CoreException e) {
 		MultiStatus status = new MultiStatus(TeamPlugin.ID, 0, message, e);
 		status.merge(e.getStatus());
 		return new TeamException(status);
 	}

 	private static String getFileExtension(String name) {
 		if (name == null) return null;
 		int index = name.lastIndexOf('.');
 		if (index == -1)
 			return null;
 		if (index == (name.length() - 1))
 			return ""; //$NON-NLS-1$
 		return name.substring(index + 1);
 	}

 	/**
 	 * Return the default ignore infos
 	 * (i.e. those that are specified in
 	 * plugin manifests).
 	 * @return the default ignore infos.
 	 * @since 3.0
 	 */
 	public static IIgnoreInfo[] getDefaultIgnores() {
 		SortedMap gIgnore = new TreeMap();
 		SortedMap pIgnore = new TreeMap();
 		initializePluginIgnores(pIgnore, gIgnore);
 		return getIgnoreInfo(gIgnore);
 	}

 	/**
 	 * Return the default file type bindings
 	 * (i.e. those that are specified in
 	 * plugin manifests).
 	 * @return the default file type bindings
 	 * @since 3.0
 	 */
 	public static IFileTypeInfo[] getDefaultTypes() {
 		SortedMap gTypes = new TreeMap();
 		SortedMap pTypes = new TreeMap();
 		initializePluginPatterns(pTypes, gTypes);
 		return getFileTypeInfo(gTypes);
 	}
 }
	/*******************************************************************************
	* 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.team.core;

	import java.io.*;
	import java.util.*;

	import org.eclipse.core.resources.*;
	import org.eclipse.core.runtime.*;
	import org.eclipse.core.runtime.Preferences.PropertyChangeEvent;
	import org.eclipse.team.internal.core.*;

	/**
	* The Team class provides a global point of reference for the global ignore set
	* and the text/binary registry.
	*
	* WVCM: how does the IProjectSetSerializer fit into the 3.0 team api?
	*
	* @since 2.0
	*/
	public final class Team {

	private static final String PREF_TEAM_IGNORES = "ignore_files"; //$NON-NLS-1$
	private static final String PREF_TEAM_TYPES = "file_types"; //$NON-NLS-1$
	private static final String PREF_TEAM_SEPARATOR = "\n"; //$NON-NLS-1$
	public static final Status OK_STATUS = new Status(Status.OK, TeamPlugin.ID, Status.OK, Policy.bind("ok"), null); //$NON-NLS-1$

	// File type constants
	public static final int UNKNOWN = 0;
	public static final int TEXT = 1;
	public static final int BINARY = 2;

	// Keys: file extensions. Values: Integers
	private static SortedMap globalTypes, pluginTypes;

	// The ignore list that is read at startup from the persisted file
	private static SortedMap globalIgnore, pluginIgnore;
	private static StringMatcher[] ignoreMatchers;

	private static class FileTypeInfo implements IFileTypeInfo {
	private String extension;
	private int type;

	public FileTypeInfo(String extension, int type) {
	this.extension = extension;
	this.type = type;
	}
	public String getExtension() {
	return extension;
	}
	public int getType() {
	return type;
	}
	}

	/**
	* Return the type of the given IStorage.
	*
	* Valid return values are:
	* Team.TEXT
	* Team.BINARY
	* Team.UNKNOWN
	*
	* @param storage the IStorage
	* @return whether the given IStorage is TEXT, BINARY, or UNKNOWN
	*/
	public static int getType(IStorage storage) {
	String extension = getFileExtension(storage.getName());
	if (extension == null) return UNKNOWN;
	SortedMap table = getFileTypeTable();
	Integer integer = (Integer)table.get(extension);
	if (integer == null) return UNKNOWN;
	return integer.intValue();
	}

	/**
	* Returns whether the given file should be ignored.
	*
	* This method answers true if the file matches one of the global ignore
	* patterns, or if the file is marked as derived.
	*
	* @param file the file
	* @return whether the file should be ignored
	*/
	public static boolean isIgnoredHint(IResource resource) {
	if (resource.isDerived()) return true;
	return matchesEnabledIgnore(resource);
	}

	/**
	* Returns whether the given file should be ignored.
	* @deprecated use isIgnoredHint(IResource) instead
	*/
	public static boolean isIgnoredHint(IFile file) {
	if (file.isDerived()) return true;
	return matchesEnabledIgnore(file);
	}

	private static boolean matchesEnabledIgnore(IResource resource) {
	StringMatcher[] matchers = getStringMatchers();
	for (int i = 0; i < matchers.length; i++) {
	if (matchers[i].match(resource.getName())) return true;
	}
	return false;
	}

	/**
	* Returns whether the given file should be ignored.
	* @deprecated use isIgnoredHint instead
	*/
	public static boolean isIgnored(IFile file) {
	return matchesEnabledIgnore(file);
	}

	private static IFileTypeInfo[] getFileTypeInfo(SortedMap map) {
	List result = new ArrayList();
	Iterator e = map.keySet().iterator();
	while (e.hasNext()) {
	String string = (String)e.next();
	int type = ((Integer)map.get(string)).intValue();
	result.add(new FileTypeInfo(string, type));
	}
	return (IFileTypeInfo[])result.toArray(new IFileTypeInfo[result.size()]);
	}

	/**
	* Return all known file types.
	*
	* @return all known file types
	*/
	public static IFileTypeInfo[] getAllTypes() {
	return getFileTypeInfo(getFileTypeTable());
	}

	/**
	* Returns the list of global ignores.
	*/
	public synchronized static IIgnoreInfo[] getAllIgnores() {
	// The ignores are cached and when the preferences change the
	// cache is cleared. This makes it faster to lookup without having
	// to re-parse the preferences.
	if (globalIgnore == null) {
	globalIgnore = new TreeMap();
	pluginIgnore = new TreeMap();
	ignoreMatchers = null;
	try {
	readIgnoreState();
	} catch (TeamException e) {
	TeamPlugin.log(IStatus.ERROR, Policy.bind("Team.Error_loading_ignore_state_from_disk_1"), e); //$NON-NLS-1$
	}
	initializePluginIgnores(pluginIgnore, globalIgnore);
	}
	IIgnoreInfo[] result = getIgnoreInfo(globalIgnore);
	return result;
	}

	private static IIgnoreInfo[] getIgnoreInfo(Map gIgnore) {
	IIgnoreInfo[] result = new IIgnoreInfo[gIgnore.size()];
	Iterator e = gIgnore.keySet().iterator();
	int i = 0;
	while (e.hasNext() ) {
	final String pattern = (String)e.next();
	final boolean enabled = ((Boolean)gIgnore.get(pattern)).booleanValue();
	result[i++] = new IIgnoreInfo() {
	private String p = pattern;
	private boolean e = enabled;
	public String getPattern() {
	return p;
	}
	public boolean getEnabled() {
	return e;
	}
	};
	}
	return result;
	}

	private synchronized static StringMatcher[] getStringMatchers() {
	if (ignoreMatchers==null) {
	IIgnoreInfo[] ignorePatterns = getAllIgnores();
	Vector matchers = new Vector(ignorePatterns.length);
	for (int i = 0; i < ignorePatterns.length; i++) {
	if (ignorePatterns[i].getEnabled()) {
	matchers.add(new StringMatcher(ignorePatterns[i].getPattern(), true, false));
	}
	}
	ignoreMatchers = new StringMatcher[matchers.size()];
	matchers.copyInto(ignoreMatchers);
	}
	return ignoreMatchers;
	}

	private synchronized static SortedMap getFileTypeTable() {
	// The types are cached and when the preferences change the
	// cache is cleared. This makes it faster to lookup without having
	// to re-parse the preferences.
	if (globalTypes == null) loadTextState();
	return globalTypes;
	}

	/**
	* Set the file type for the give extension to the given type.
	*
	* Valid types are:
	* Team.TEXT
	* Team.BINARY
	* Team.UNKNOWN
	*
	* @param extension the file extension
	* @param type the file type
	*/
	public static void setAllTypes(String[] extensions, int[] types) {
	if (pluginTypes == null) {
	loadTextState();
	}
	globalTypes = new TreeMap();
	for (int i = 0; i < extensions.length; i++) {
	globalTypes.put(extensions[i], new Integer(types[i]));
	}
	// Now set into preferences
	StringBuffer buf = new StringBuffer();
	Iterator e = globalTypes.keySet().iterator();
	while (e.hasNext()) {
	String extension = (String)e.next();
	boolean isCustom = (!pluginTypes.containsKey(extension)) \|\|
	!((Integer)pluginTypes.get(extension)).equals(pluginTypes.get(extension));
	if (isCustom) {
	buf.append(extension);
	buf.append(PREF_TEAM_SEPARATOR);
	Integer type = (Integer)globalTypes.get(extension);
	buf.append(type);
	buf.append(PREF_TEAM_SEPARATOR);
	}

	}
	TeamPlugin.getPlugin().getPluginPreferences().setValue(PREF_TEAM_TYPES, buf.toString());
	}

	/**
	* Add patterns to the list of global ignores.
	*/
	public static void setAllIgnores(String[] patterns, boolean[] enabled) {
	globalIgnore = new TreeMap();
	ignoreMatchers = null;
	for (int i = 0; i < patterns.length; i++) {
	globalIgnore.put(patterns[i], new Boolean(enabled[i]));
	}
	// Now set into preferences
	StringBuffer buf = new StringBuffer();
	Iterator e = globalIgnore.keySet().iterator();
	while (e.hasNext()) {
	String pattern = (String)e.next();
	boolean isCustom = (!pluginIgnore.containsKey(pattern)) \|\|
	!((Boolean)pluginIgnore.get(pattern)).equals(globalIgnore.get(pattern));
	if (isCustom) {
	buf.append(pattern);
	buf.append(PREF_TEAM_SEPARATOR);
	boolean en = ((Boolean)globalIgnore.get(pattern)).booleanValue();
	buf.append(en);
	buf.append(PREF_TEAM_SEPARATOR);
	}

	}
	TeamPlugin.getPlugin().getPluginPreferences().setValue(PREF_TEAM_IGNORES, buf.toString());
	}

	/*
	* TEXT
	*
	* Reads the text patterns currently defined by extensions.
	*/
	private static void initializePluginPatterns(Map pTypes, Map fTypes) {
	TeamPlugin plugin = TeamPlugin.getPlugin();
	if (plugin != null) {
	IExtensionPoint extension = plugin.getDescriptor().getExtensionPoint(TeamPlugin.FILE_TYPES_EXTENSION);
	if (extension != null) {
	IExtension[] extensions = extension.getExtensions();
	for (int i = 0; i < extensions.length; i++) {
	IConfigurationElement[] configElements = extensions[i].getConfigurationElements();
	for (int j = 0; j < configElements.length; j++) {
	String ext = configElements[j].getAttribute("extension"); //$NON-NLS-1$
	if (ext != null) {
	String type = configElements[j].getAttribute("type"); //$NON-NLS-1$
	// If the extension doesn't already exist, add it.
	if (!fTypes.containsKey(ext)) {
	if (type.equals("text")) { //$NON-NLS-1$
	pTypes.put(ext, new Integer(TEXT));
	fTypes.put(ext, new Integer(TEXT));
	} else if (type.equals("binary")) { //$NON-NLS-1$
	fTypes.put(ext, new Integer(BINARY));
	pTypes.put(ext, new Integer(BINARY));
	}
	}
	}
	}
	}
	}
	}
	}

	/*
	* TEXT
	*
	* Read the saved file type state from the given input stream.
	*
	* @param dis the input stream to read the saved state from
	* @throws IOException if an I/O problem occurs
	*/
	private static void readTextState(DataInputStream dis) throws IOException {
	int extensionCount = 0;
	try {
	extensionCount = dis.readInt();
	} catch (EOFException e) {
	// Ignore the exception, it will occur if there are no
	// patterns stored in the state file.
	return;
	}
	for (int i = 0; i < extensionCount; i++) {
	String extension = dis.readUTF();
	int type = dis.readInt();
	globalTypes.put(extension, new Integer(type));
	}
	}

	/*
	* TEXT
	*
	* Load the file type registry saved state. This loads the previously saved
	* contents, as well as discovering any values contributed by plug-ins.
	*/
	private static void loadTextState() {
	globalTypes = new TreeMap();
	boolean old = loadBackwardCompatibleTextState();
	if (!old) loadTextPreferences();
	pluginTypes = new TreeMap();
	initializePluginPatterns(pluginTypes, globalTypes);
	if (old) TeamPlugin.getPlugin().savePluginPreferences();
	}

	private static void loadTextPreferences() {
	Preferences pref = TeamPlugin.getPlugin().getPluginPreferences();
	if (!pref.contains(PREF_TEAM_TYPES)) return;
	pref.addPropertyChangeListener(new Preferences.IPropertyChangeListener() {
	public void propertyChange(PropertyChangeEvent event) {
	// when a property is changed, invalidate our cache so that
	// properties will be recalculated.
	if(event.getProperty().equals(PREF_TEAM_TYPES))
	globalTypes = null;
	}
	});
	String prefTypes = pref.getString(PREF_TEAM_TYPES);
	StringTokenizer tok = new StringTokenizer(prefTypes, PREF_TEAM_SEPARATOR);
	String extension, integer;
	try {
	while (true) {
	extension = tok.nextToken();
	if (extension.length()==0) return;
	integer = tok.nextToken();
	globalTypes.put(extension, Integer.valueOf(integer));
	}
	} catch (NoSuchElementException e) {
	return;
	}

	}
	/*
	* If the workspace is an old 2.0 one, read the old file and delete it
	*/
	private static boolean loadBackwardCompatibleTextState() {
	// File name of the persisted file type information
	String STATE_FILE = ".fileTypes"; //$NON-NLS-1$
	IPath pluginStateLocation = TeamPlugin.getPlugin().getStateLocation().append(STATE_FILE);
	File f = pluginStateLocation.toFile();
	if (!f.exists()) return false;
	try {
	DataInputStream dis = new DataInputStream(new FileInputStream(f));
	try {
	readTextState(dis);
	} finally {
	dis.close();
	}
	} catch (IOException ex) {
	TeamPlugin.log(Status.ERROR, ex.getMessage(), ex);
	return false;
	}
	f.delete();
	return true;
	}

	/*
	* IGNORE
	*
	* Reads the ignores currently defined by extensions.
	*/
	private static void initializePluginIgnores(SortedMap pIgnore, SortedMap gIgnore) {
	TeamPlugin plugin = TeamPlugin.getPlugin();
	if (plugin != null) {
	IExtensionPoint extension = plugin.getDescriptor().getExtensionPoint(TeamPlugin.IGNORE_EXTENSION);
	if (extension != null) {
	IExtension[] extensions = extension.getExtensions();
	for (int i = 0; i < extensions.length; i++) {
	IConfigurationElement [] configElements = extensions[i].getConfigurationElements();
	for (int j = 0; j < configElements.length; j++) {
	String pattern = configElements[j].getAttribute("pattern"); //$NON-NLS-1$
	if (pattern != null) {
	String selected = configElements[j].getAttribute("enabled"); //$NON-NLS-1$
	if (selected == null) {
	// Check for selected because this used to be the field name
	selected = configElements[j].getAttribute("selected"); //$NON-NLS-1$
	}
	boolean enabled = selected != null && selected.equalsIgnoreCase("true"); //$NON-NLS-1$
	// if this ignore doesn't already exist, add it to the global list
	pIgnore.put(pattern, new Boolean(enabled));
	if (!gIgnore.containsKey(pattern)) {
	gIgnore.put(pattern, new Boolean(enabled));
	}
	}
	}
	}
	}
	}
	}

	/*
	* IGNORE
	*
	* Reads global ignore preferences and populates globalIgnore
	*/
	private static void readIgnoreState() throws TeamException {
	if (readBackwardCompatibleIgnoreState()) return;
	Preferences pref = TeamPlugin.getPlugin().getPluginPreferences();
	if (!pref.contains(PREF_TEAM_IGNORES)) return;
	pref.addPropertyChangeListener(new Preferences.IPropertyChangeListener() {
	public void propertyChange(PropertyChangeEvent event) {
	// when a property is changed, invalidate our cache so that
	// properties will be recalculated.
	if(event.getProperty().equals(PREF_TEAM_IGNORES))
	globalIgnore = null;
	}
	});
	String prefIgnores = pref.getString(PREF_TEAM_IGNORES);
	StringTokenizer tok = new StringTokenizer(prefIgnores, PREF_TEAM_SEPARATOR);
	String pattern, enabled;
	try {
	while (true) {
	pattern = tok.nextToken();
	if (pattern.length()==0) return;
	enabled = tok.nextToken();
	globalIgnore.put(pattern, new Boolean(enabled));
	}
	} catch (NoSuchElementException e) {
	return;
	}
	}

	/*
	* For backward compatibility, we still look at if we have .globalIgnores
	*/
	private static boolean readBackwardCompatibleIgnoreState() throws TeamException {
	String GLOBALIGNORE_FILE = ".globalIgnores"; //$NON-NLS-1$
	IPath pluginStateLocation = TeamPlugin.getPlugin().getStateLocation().append(GLOBALIGNORE_FILE);
	File f = pluginStateLocation.toFile();
	if (!f.exists()) return false;
	try {
	DataInputStream dis = new DataInputStream(new FileInputStream(f));
	try {
	int ignoreCount = 0;
	try {
	ignoreCount = dis.readInt();
	} catch (EOFException e) {
	// Ignore the exception, it will occur if there are no ignore
	// patterns stored in the provider state file.
	return false;
	}
	for (int i = 0; i < ignoreCount; i++) {
	String pattern = dis.readUTF();
	boolean enabled = dis.readBoolean();
	globalIgnore.put(pattern, new Boolean(enabled));
	}
	} finally {
	dis.close();
	}
	f.delete();
	} catch (FileNotFoundException e) {
	// not a fatal error, there just happens not to be any state to read
	} catch (IOException ex) {
	throw new TeamException(new Status(IStatus.ERROR, TeamPlugin.ID, 0, Policy.bind("Team.readError"), ex)); //$NON-NLS-1$
	}
	return true;
	}
	/**
	* Initialize the registry, restoring its state.
	*
	* This method is called by the plug-in upon startup, clients should not call this method
	*/
	public static void startup() throws CoreException {
	// Register a delta listener that will tell the provider about a project move
	ResourcesPlugin.getWorkspace().addResourceChangeListener(new IResourceChangeListener() {
	public void resourceChanged(IResourceChangeEvent event) {
	IResourceDelta[] projectDeltas = event.getDelta().getAffectedChildren();
	for (int i = 0; i < projectDeltas.length; i++) {
	IResourceDelta delta = projectDeltas[i];
	IResource resource = delta.getResource();
	// Only consider project additions that are moves
	if (delta.getKind() != IResourceDelta.ADDED) continue;
	if ((delta.getFlags() & IResourceDelta.MOVED_FROM) == 0) continue;
	// Only consider projects that have a provider
	if (!RepositoryProvider.isShared(resource.getProject())) continue;
	RepositoryProvider provider = RepositoryProvider.getProvider(resource.getProject());
	if (provider == null) continue;
	// Only consider providers whose project is not mapped properly already
	if (provider.getProject().equals(resource.getProject())) continue;
	// Tell the provider about it's new project
	provider.setProject(resource.getProject());
	}
	}
	}, IResourceChangeEvent.POST_CHANGE);
	}

	/**
	* Shut down the registry, persisting its state.
	*
	* This method is called by the plug-in upon shutdown, clients should not call this method
	*/
	public static void shutdown() {
	TeamPlugin.getPlugin().savePluginPreferences();
	}
	/**
	* @deprecated
	* Use {@link org.eclipse.team.core.RepositoryProviderType#getProjectSetSerializer()}
	* to obtain an instance of {@link org.eclipse.team.core.ProjectSetSerializer} instead.
	*/
	public static IProjectSetSerializer getProjectSetSerializer(String id) {
	TeamPlugin plugin = TeamPlugin.getPlugin();
	if (plugin != null) {
	IExtensionPoint extension = plugin.getDescriptor().getExtensionPoint(TeamPlugin.PROJECT_SET_EXTENSION);
	if (extension != null) {
	IExtension[] extensions = extension.getExtensions();
	for (int i = 0; i < extensions.length; i++) {
	IConfigurationElement [] configElements = extensions[i].getConfigurationElements();
	for (int j = 0; j < configElements.length; j++) {
	String extensionId = configElements[j].getAttribute("id"); //$NON-NLS-1$
	if (extensionId != null && extensionId.equals(id)) {
	try {
	return (IProjectSetSerializer)configElements[j].createExecutableExtension("class"); //$NON-NLS-1$
	} catch (CoreException e) {
	TeamPlugin.log(e);
	return null;
	}
	}
	}
	}
	}
	}
	return null;
	}
	private static TeamException wrapException(String message, CoreException e) {
	MultiStatus status = new MultiStatus(TeamPlugin.ID, 0, message, e);
	status.merge(e.getStatus());
	return new TeamException(status);
	}

	private static String getFileExtension(String name) {
	if (name == null) return null;
	int index = name.lastIndexOf('.');
	if (index == -1)
	return null;
	if (index == (name.length() - 1))
	return ""; //$NON-NLS-1$
	return name.substring(index + 1);
	}

	/**
	* Return the default ignore infos
	* (i.e. those that are specified in
	* plugin manifests).
	* @return the default ignore infos.
	* @since 3.0
	*/
	public static IIgnoreInfo[] getDefaultIgnores() {
	SortedMap gIgnore = new TreeMap();
	SortedMap pIgnore = new TreeMap();
	initializePluginIgnores(pIgnore, gIgnore);
	return getIgnoreInfo(gIgnore);
	}

	/**
	* Return the default file type bindings
	* (i.e. those that are specified in
	* plugin manifests).
	* @return the default file type bindings
	* @since 3.0
	*/
	public static IFileTypeInfo[] getDefaultTypes() {
	SortedMap gTypes = new TreeMap();
	SortedMap pTypes = new TreeMap();
	initializePluginPatterns(pTypes, gTypes);
	return getFileTypeInfo(gTypes);
	}
	}