/*
* Copyright (c) 1998-2011 Caucho Technology -- all rights reserved
*
* This file is part of Resin(R) Open Source
*
* Each copy or derived work must preserve the copyright notice and this
* notice unmodified.
*
* Resin Open Source is free software; you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
* the Free Software Foundation; either version 2 of the License, or
* (at your option) any later version.
*
* Resin Open Source is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE, or any warranty
* of NON-INFRINGEMENT. See the GNU General Public License for more
* details.
*
* You should have received a copy of the GNU General Public License
* along with Resin Open Source; if not, write to the
*
* Free Software Foundation, Inc.
* 59 Temple Place, Suite 330
* Boston, MA 02111-1307 USA
*
* @author Scott Ferguson
*/
package com.caucho.config.event;
import java.lang.annotation.Annotation;
import java.util.ArrayList;
import java.util.Set;
import java.util.logging.Level;
import java.util.logging.Logger;
import javax.enterprise.inject.spi.ObserverMethod;
import com.caucho.config.reflect.BaseType;
import com.caucho.inject.Module;
/**
* Matches bindings
*/
@Module
public class ObserverMap {
private static final Logger log
= Logger.getLogger(ObserverMap.class.getName());
private Class<?> _type;
private ArrayList<ObserverEntry<?>> _observerList
= new ArrayList<ObserverEntry<?>>();
public ObserverMap(Class<?> type)
{
_type = type;
}
public void addObserver(ObserverMethod<?> observer,
BaseType type,
Annotation []bindings)
{
ObserverEntry<?> entry = new ObserverEntry(observer, type, bindings);
_observerList.add(entry);
}
public <T> void resolveObservers(Set<ObserverMethod<? super T>> set,
BaseType eventType,
Annotation []qualifiers)
{
for (int i = 0; i < _observerList.size(); i++) {
ObserverEntry observer = _observerList.get(i);
// ioc/0b5c
if (observer.isAssignableFrom(eventType, qualifiers)) {
set.add(observer.getObserver());
}
}
}
public void resolveEntries(ArrayList<ObserverEntry<?>> list,
BaseType eventType,
BaseType subType)
{
for (int i = 0; i < _observerList.size(); i++) {
ObserverEntry<?> observer = _observerList.get(i);
BaseType observerType = observer.getType();
if ((observerType.isAssignableFrom(eventType)
|| observerType.isAssignableFrom(subType))
&& ! list.contains(observer)) {
list.add(observer);
}
}
}
public void fireEvent(Object event,
BaseType eventType,
Annotation []qualifiers)
{
for (int i = 0; i < _observerList.size(); i++) {
ObserverEntry observer = _observerList.get(i);
if (observer.isAssignableFrom(eventType, qualifiers)) {
if (log.isLoggable(Level.FINEST))
log.finest(observer.getObserver() + " notify " + event);
observer.notify(event);
}
}
}
@Override
public String toString()
{
return getClass().getSimpleName() + "[" + _type + "]";
}
}