001/**
002 * Copyright 2013 John Ericksen
003 *
004 * Licensed under the Apache License, Version 2.0 (the "License");
005 * you may not use this file except in compliance with the License.
006 * You may obtain a copy of the License at
007 *
008 *    http://www.apache.org/licenses/LICENSE-2.0
009 *
010 * Unless required by applicable law or agreed to in writing, software
011 * distributed under the License is distributed on an "AS IS" BASIS,
012 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
013 * See the License for the specific language governing permissions and
014 * limitations under the License.
015 */
016package org.androidtransfuse.analysis.astAnalyzer;
017
018import org.androidtransfuse.adapter.ASTMethod;
019import org.androidtransfuse.adapter.ASTMethodUniqueSignatureDecorator;
020import org.androidtransfuse.adapter.ASTType;
021
022import java.util.*;
023
024/**
025 * Aspect associating listenable methods with the set of listening methods.
026 *
027 * @author John Ericksen
028 */
029public class ListenerAspect {
030
031    private final Map<ASTType, Set<ASTMethod>> listeners = new HashMap<ASTType, Set<ASTMethod>>();
032
033    public void addMethodCallback(ASTType annotationType, ASTMethod method) {
034        if (!listeners.containsKey(annotationType)) {
035            listeners.put(annotationType, new HashSet<ASTMethod>());
036        }
037        Set<ASTMethod> methods = listeners.get(annotationType);
038
039        methods.add(new ASTMethodUniqueSignatureDecorator(method));
040    }
041
042    public Set<ASTMethod> getListeners(ASTType annotationType) {
043        if(listeners.containsKey(annotationType)){
044            return listeners.get(annotationType);
045        }
046
047        return Collections.emptySet();
048    }
049
050    public boolean contains(ASTType annotationType) {
051        return listeners.containsKey(annotationType);
052    }
053}