/*
* 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
*/
package com.caucho.config.event;
import java.lang.annotation.Annotation;
import java.util.Set;
import javax.enterprise.inject.spi.ObserverMethod;
import com.caucho.config.inject.QualifierBinding;
import com.caucho.config.reflect.BaseType;
public class ObserverEntry<T> {
private ObserverMethod<T> _observer;
private BaseType _type;
private QualifierBinding []_qualifiers;
ObserverEntry(ObserverMethod<T> observer,
BaseType type,
Annotation []qualifiers)
{
_observer = observer;
_type = type;
_qualifiers = new QualifierBinding[qualifiers.length];
for (int i = 0; i < qualifiers.length; i++) {
_qualifiers[i] = new QualifierBinding(qualifiers[i]);
}
}
ObserverMethod<T> getObserver()
{
return _observer;
}
BaseType getType()
{
return _type;
}
void notify(T event)
{
_observer.notify(event);
}
void fireEvent(T event, Annotation []qualifiers)
{
if (isMatch(qualifiers))
_observer.notify(event);
}
void resolveObservers(Set<ObserverMethod<?>> set, Annotation []qualifiers)
{
if (isMatch(qualifiers))
set.add(_observer);
}
boolean isAssignableFrom(BaseType type, Annotation []qualifiers)
{
if (! _type.isAssignableFrom(type)) {
return false;
}
/*
if (qualifiers.length < _qualifiers.length)
return false;
*/
return isMatch(qualifiers);
}
private boolean isMatch(Annotation []qualifiers)
{
for (QualifierBinding qualifier : _qualifiers) {
if (qualifier.isAny()) {
}
else if (! qualifier.isMatch(qualifiers)) {
return false;
}
}
return true;
}
public String toString()
{
return getClass().getSimpleName() + "[" + _observer + "," + _type + "]";
}
}