/**
 * Copyright (c) 2008 CDO2 Limited.
 * All rights reserved.
 *
 * Redistribution and use in source and binary forms, with or without
 * modification, are permitted provided that the following conditions are met:
 *     * Redistributions of source code must retain the above copyright
 *       notice, this list of conditions and the following disclaimer.
 *     * Redistributions in binary form must reproduce the above copyright
 *       notice, this list of conditions and the following disclaimer in the
 *       documentation and/or other materials provided with the distribution.
 *     * Neither the name of CDO2 Limited nor the names of its contributors
 *       may be used to endorse or promote products derived from this
 *       software without specific prior written permission.
 *
 * THIS SOFTWARE IS PROVIDED BY CDO2 LIMITED ''AS IS'' AND ANY
 * EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED
 * WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
 * DISCLAIMED. IN NO EVENT SHALL <copyright holder> BE LIABLE FOR ANY
 * DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES
 * (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
 * LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND
 * ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
 * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS
 * SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
 */
package net.scatterspace.blitz.jmx;

import java.rmi.RemoteException;
import java.util.Iterator;

import net.scatterspace.blitz.jmx.iface.OpMXBean;

import org.dancres.blitz.remote.StatsAdmin;
import org.dancres.blitz.stats.OpStat;

/**
 * MXBean to interface to {@link OpStat}.
 */
public class OpImpl extends AbstractStatsImpl<OpStat> implements OpMXBean
{
    private String type_;
    
    public OpImpl(StatsAdmin admin, String type)
    {
        super(admin, OpStat.class);
        type_ = type;
    }
    
    public long getReads() throws RemoteException
    {
        Iterator<OpStat> iter = getStatistics().iterator();
        while (iter.hasNext())
        {
            OpStat op = iter.next();
            if (op.getType().equals(type_) && op.getOp() == OpStat.READS)
                return op.getCount();
        }
        
        return 0;
    }
    
    public long getTakes() throws RemoteException
    {
        Iterator<OpStat> iter = getStatistics().iterator();
        while (iter.hasNext())
        {
            OpStat op = iter.next();
            if (op.getType().equals(type_) && op.getOp() == OpStat.TAKES)
                return op.getCount();
        }
        
        return 0;
    }
    
    public long getWrites() throws RemoteException
    {
        Iterator<OpStat> iter = getStatistics().iterator();
        while (iter.hasNext())
        {
            OpStat op = iter.next();
            if (op.getType().equals(type_) && op.getOp() == OpStat.WRITES)
                return op.getCount();
        }
        
        return 0;
    }

    @Override
    public String toString()
    {
        return super.toString() + ",class=" + type_;
    }
}