/*
* JacORB - a free Java ORB
*
* Copyright (C) 1999-2014 Gerald Brose / The JacORB Team.
*
* This library is free software; you can redistribute it and/or
* modify it under the terms of the GNU Library General Public
* License as published by the Free Software Foundation; either
* version 2 of the License, or (at your option) any later version.
*
* This library 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. See the GNU
* Library General Public License for more details.
*
* You should have received a copy of the GNU Library General Public
* License along with this library; if not, write to the Free
* Software Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
*
*/
package org.jacorb.notification.filter;
import java.lang.reflect.InvocationHandler;
import java.lang.reflect.Method;
import java.util.Date;
/**
* @author Alphonse Bendt
*/
public abstract class AbstractFilterUsageDecorator
{
long lastUsage_;
long matchCount_ = 0;
long matchStructuredCount_ = 0;
long matchTypedCount_ = 0;
final FilterInvocationHandler invocationHandler_;
private final Date created_ = new Date();
protected class FilterInvocationHandler implements InvocationHandler
{
private final Object delegate_;
public FilterInvocationHandler(Object delegate)
{
delegate_ = delegate;
}
public Object invoke(Object proxy, Method method, Object[] args) throws Throwable
{
updateUsage(method);
return method.invoke(delegate_, args);
}
private void updateUsage(Method method)
{
lastUsage_ = System.currentTimeMillis();
// this will work for MappingFilters and Filters as methods have the same names.
if (method.getName().equals("match"))
{
++matchCount_;
}
else if (method.getName().equals("match_structured"))
{
++matchStructuredCount_;
}
else if (method.getName().equals("match_typed"))
{
++matchTypedCount_;
}
}
}
public AbstractFilterUsageDecorator(Object delegate)
{
super();
invocationHandler_ = new FilterInvocationHandler(delegate);
}
public Date getLastUsage()
{
return new Date(lastUsage_);
}
public Date getCreationDate()
{
return created_;
}
public long getMatchCount()
{
return matchCount_;
}
public long getMatchStructuredCount()
{
return matchStructuredCount_;
}
public long getMatchTypedCount()
{
return matchTypedCount_;
}
}