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/*******************************************************************************
* Copyright (c) 2000, 2004 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.IStorage;
import org.eclipse.core.runtime.IPath;
import org.eclipse.core.runtime.Status;
import org.eclipse.team.internal.core.*;
/**
* TODO: implement extension point
*/
public class FileContentManager implements IFileContentManager {
private static final String PREF_TEAM_EXTENSION_TYPES= "file_types"; //$NON-NLS-1$
private static final String PREF_TEAM_FILENAME_TYPES= "cvs_mode_for_file_without_extensions"; //$NON-NLS-1$
private static class StringMapping implements IStringMapping {
private final String fString;
private final int fType;
public StringMapping(String string, int type) {
fString= string;
fType= type;
}
public String getString() {
return fString;
}
public int getType() {
return fType;
}
}
private static class UserExtensionMappings extends UserStringMappings {
public UserExtensionMappings(String key) {
super(key);
}
protected Map loadMappingsFromPreferences() {
final Map result= super.loadMappingsFromPreferences();
if (loadMappingsFromOldWorkspace(result)) {
TeamPlugin.getPlugin().savePluginPreferences();
}
return result;
}
/**
* If the workspace is an old 2.0 one, read the old file and delete it.
*
* @param A map where the new mappings should be added.
*
* @return true if the workspace was a 2.0 one and the old mappings have
* been added to the map, false otherwise.
*
*/
private boolean loadMappingsFromOldWorkspace(Map map) {
// 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 input = new DataInputStream(new FileInputStream(f));
try {
map.putAll(readOldFormatExtensionMappings(input));
} finally {
input.close();
f.delete();
}
} catch (IOException ex) {
TeamPlugin.log(Status.ERROR, ex.getMessage(), ex);
return false;
}
return true;
}
/**
* Read the saved file type state from the given input stream.
*
* @param input the input stream to read the saved state from
* @throws IOException if an I/O problem occurs
*/
private Map readOldFormatExtensionMappings(DataInputStream input) throws IOException {
final Map result= new TreeMap();
int numberOfMappings = 0;
try {
numberOfMappings = input.readInt();
} catch (EOFException e) {
// Ignore the exception, it will occur if there are no
// patterns stored in the state file.
return Collections.EMPTY_MAP;
}
for (int i = 0; i < numberOfMappings; i++) {
final String extension = input.readUTF();
final int type = input.readInt();
result.put(extension, new Integer(type));
}
return result;
}
}
private final UserStringMappings fUserExtensionMappings, fUserNameMappings;
private PluginStringMappings fPluginExtensionMappings;//, fPluginNameMappings;
public FileContentManager() {
fUserExtensionMappings= new UserExtensionMappings(PREF_TEAM_EXTENSION_TYPES);
fUserNameMappings= new UserStringMappings(PREF_TEAM_FILENAME_TYPES);
fPluginExtensionMappings= new PluginStringMappings(TeamPlugin.FILE_TYPES_EXTENSION, "extension"); //$NON-NLS-1$
}
public int getTypeForName(String filename) {
final int userType= fUserNameMappings.getType(filename);
// final int pluginType= fPluginNameMappings.getType(filename);
// return userType != Team.UNKNOWN ? userType : pluginType;
return userType;
}
public int getTypeForExtension(String extension) {
final int userType= fUserExtensionMappings.getType(extension);
final int pluginType= fPluginExtensionMappings.getType(extension);
return userType != Team.UNKNOWN ? userType : pluginType;
}
public void addNameMappings(String[] names, int [] types) {
fUserNameMappings.addStringMappings(names, types);
}
public void addExtensionMappings(String[] extensions, int [] types) {
fUserExtensionMappings.addStringMappings(extensions, types);
}
public void setNameMappings(String[] names, int [] types) {
fUserNameMappings.setStringMappings(names, types);
}
public void setExtensionMappings(String[] extensions, int [] types) {
fUserExtensionMappings.setStringMappings(extensions, types);
}
public IStringMapping[] getNameMappings() {
return getMappings(fUserNameMappings, null);//fPluginNameMappings);
}
public IStringMapping[] getExtensionMappings() {
return getMappings(fUserExtensionMappings, fPluginExtensionMappings);
}
public int getType(IStorage storage) {
int type;
final String name= storage.getName();
if (name != null && (type= getTypeForName(name)) != Team.UNKNOWN)
return type;
final String extension= getFileExtension(name);
if (extension != null && (type= getTypeForExtension(extension)) != Team.UNKNOWN)
return type;
return Team.UNKNOWN;
}
public IStringMapping[] getDefaultNameMappings() {
return new IStringMapping[0];//getStringMappings(fPluginNameMappings.referenceMap());
}
public IStringMapping[] getDefaultExtensionMappings() {
return getStringMappings(fPluginExtensionMappings.referenceMap());
}
public boolean isKnownExtension(String extension) {
return fUserExtensionMappings.referenceMap().containsKey(extension)
|| fPluginExtensionMappings.referenceMap().containsKey(extension);
}
public boolean isKnownFilename(String filename) {
return fUserNameMappings.referenceMap().containsKey(filename);
// || fPluginNameMappings.referenceMap().containsKey(filename);
}
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);
}
private static IStringMapping [] getStringMappings(Map map) {
final IStringMapping [] result= new IStringMapping [map.size()];
int index= 0;
for (final Iterator iter = map.entrySet().iterator(); iter.hasNext();) {
final Map.Entry entry= (Map.Entry)iter.next();
result[index++]= new StringMapping((String)entry.getKey(), ((Integer)entry.getValue()).intValue());
}
return result;
}
private IStringMapping [] getMappings(UserStringMappings userMappings, PluginStringMappings pluginMappings) {
final Map mappings= new HashMap();
if (pluginMappings != null)
mappings.putAll(pluginMappings.referenceMap());
mappings.putAll(userMappings.referenceMap());
return getStringMappings(mappings);
}
}
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