| /******************************************************************************* |
| * Copyright (c) 2007-2008 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 - Initial API and implementation |
| *******************************************************************************/ |
| |
| package org.eclipse.ptp.internal.rdt.core.miners; |
| |
| import java.util.Map; |
| import java.util.Set; |
| import java.util.TreeMap; |
| import java.util.TreeSet; |
| import org.eclipse.core.runtime.IPath; |
| import org.eclipse.core.runtime.Path; |
| |
| /** |
| * @author crecoskie |
| * |
| */ |
| public class ScopeManager { |
| |
| private Map<String, Set<String>> scopeNamesToFileSetMap = null; |
| static private ScopeManager instance = null; |
| |
| private ScopeManager() |
| { |
| scopeNamesToFileSetMap = new TreeMap<String, Set<String>>(); |
| } |
| |
| static public synchronized ScopeManager getInstance() { |
| if(instance == null) |
| instance = new ScopeManager(); |
| |
| return instance; |
| } |
| |
| public void addScope(String name, Set<String> files) |
| { |
| scopeNamesToFileSetMap.put(name, files); |
| } |
| |
| public void removeScope(String name) { |
| scopeNamesToFileSetMap.remove(name); |
| } |
| |
| public Set<String> getFilesForScope(String name) { |
| return scopeNamesToFileSetMap.get(name); |
| } |
| |
| public void addFileToScope(String scope, String filename) { |
| Set<String> scopeFiles = getFilesForScope(scope); |
| if(scopeFiles == null) { |
| scopeFiles = new TreeSet<String>(); |
| scopeNamesToFileSetMap.put(scope, scopeFiles); |
| } |
| |
| scopeFiles.add(filename); |
| } |
| |
| public void removeFileFromScope(String scope, String filename) { |
| Set<String> scopeFiles = getFilesForScope(scope); |
| |
| if(scopeFiles != null) |
| scopeFiles.remove(filename); |
| } |
| |
| public Set<String> getAllScopes() { |
| return scopeNamesToFileSetMap.keySet(); |
| } |
| |
| /** |
| * Returns a Set of all scopes that the specified file occurs in. |
| * |
| * @param filename |
| * @return |
| */ |
| public Set<String> getScopesForFile(String filename) { |
| Set<String> resultSet = new TreeSet<String>(); |
| |
| // canonicalize the filename |
| IPath path = Path.fromOSString(filename); |
| String canonicalPath = path.toOSString(); |
| |
| |
| // HACK |
| // FIXME IPath.fromOSString() won't strip leading double slashes due to support for UNC paths. |
| // We need to strip them. This means that using UNC paths on a UNIX backend won't work. Oh well. |
| if(canonicalPath.startsWith("//")) { //$NON-NLS-1$ |
| canonicalPath = canonicalPath.substring(1); |
| } |
| |
| |
| // check each scope for the file |
| Set<String> allScopes = getAllScopes(); |
| Set<String> scopeFiles = null; |
| |
| for(String scopeName : allScopes) { |
| scopeFiles = getFilesForScope(scopeName); |
| if(scopeFiles.contains(canonicalPath)) { |
| resultSet.add(scopeName); |
| } |
| } |
| |
| return resultSet; |
| } |
| |
| } |