001 /* 002 Copyright (C) 2003 Laurent Martelli <laurent@aopsys.com> 003 004 This program is free software; you can redistribute it and/or modify 005 it under the terms of the GNU Lesser General Public License as 006 published by the Free Software Foundation; either version 2 of the 007 License, or (at your option) any later version. 008 009 This program is distributed in the hope that it will be useful, 010 but WITHOUT ANY WARRANTY; without even the implied warranty of 011 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the 012 GNU Lesser General Public License for more details. 013 014 You should have received a copy of the GNU Lesser General Public License 015 along with this program; if not, write to the Free Software 016 Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA */ 017 018 package org.objectweb.jac.aspects.queue; 019 020 import org.objectweb.jac.core.AspectComponent; 021 import org.objectweb.jac.core.rtti.ClassItem; 022 import org.objectweb.jac.core.rtti.FieldItem; 023 import org.objectweb.jac.core.rtti.MethodItem; 024 import java.util.HashSet; 025 import java.util.Iterator; 026 import java.util.Map; 027 import java.util.Set; 028 import org.objectweb.jac.util.Log; 029 030 031 public class MessageQueueAC extends AspectComponent implements MessageQueueConf { 032 033 MessageQueue mqueue = new MessageQueue(); 034 035 public void registerField(ClassItem cli, String fieldName, MethodItem callback) { 036 mqueue.registerFieldChange(cli.getField(fieldName),callback); 037 } 038 039 public void whenConfigured() { 040 Log.trace("mqueue",this+".whenConfigured"); 041 super.whenConfigured(); 042 Set treatedFields = new HashSet(); 043 Map fieldClients = mqueue.getFieldClients(); 044 Iterator it = fieldClients.keySet().iterator(); 045 while (it.hasNext()) { 046 FieldItem field = (FieldItem)it.next(); 047 if (!treatedFields.contains(field)) { 048 Log.trace("mqueue","installing pointcut for "+field.getLongName()); 049 pointcut("ALL",field.getClassItem().getName(),"WRITERS("+field.getName()+")", 050 MessageQueueWrapper.class.getName(),null,SHARED); 051 treatedFields.add(field); 052 } 053 } 054 } 055 056 public MessageQueue getMessageQueue() { 057 return mqueue; 058 } 059 }