ruper2/src/java/core/org/krysalis/ruper/util/chainprocess HandlerChain.java,NONE,1.1 HandlerManager.java,NONE,1.1 Handler.java,NONE,1.1

Update of /cvsroot/metamorphosis/ruper2/src/java/core/org/krysalis/ruper/util/chainprocess
In directory sc8-pr-cvs1:/tmp/cvs-serv10851/src/java/core/org/krysalis/ruper/util/chainprocess

Added Files:
	HandlerChain.java HandlerManager.java Handler.java 
Log Message:
handler chain process added

--- NEW FILE: HandlerChain.java ---
package org.krysalis.ruper.util.chainprocess;

import java.util.ArrayList;
import java.util.Iterator;
import java.util.List;

public class HandlerChain 
{
	private String m_name;
	
    /** List of handlers in this chain */
    private List m_handlers = new ArrayList();

	public HandlerChain(String name)
	{
		m_name = name;
	}
	
    public void addHandler(Handler handler)
    {
        m_handlers.add(handler);        
    }

    public void addHandlerAt(int position, Handler handler)
    {
        m_handlers.add(position, handler);
    }

    public List process(final List list)
    {
    	List processedList = new ArrayList(list);
    	
		Iterator handlerIterator = m_handlers.iterator();

        if (handlerIterator.hasNext())
        {
            Handler handler = (Handler) handlerIterator.next();
			processedList = handler.process( processedList );
        }
        
        return processedList;
    }

    public void removeHandler(Handler handler)
    {
        m_handlers.remove( handler );
    }

	/**
	 * @return
	 */
	public List getHandlers()
	{
		return m_handlers;
	}

	/**
	 * @return
	 */
	public String getName()
	{
		return m_name;
	}

	/**
	 * @param list
	 */
	public void setHandlers(List list)
	{
		m_handlers = list;
	}

	/**
	 * @param string
	 */
	public void setName(String string)
	{
		m_name = string;
	}

}

--- NEW FILE: HandlerManager.java ---
package org.krysalis.ruper.util.chainprocess;

import java.util.ArrayList;
import java.util.Iterator;
import java.util.List;


public class HandlerManager
{
	protected List m_handlerChains;
	
	public HandlerManager()
	{
		this.m_handlerChains = new ArrayList();
	}
	/*
	 * Adds the listeners for adding different handler impl to the handler chain
	 */
	public void addHandlerChain(HandlerChain handlerChain)
	{
		m_handlerChains.add(handlerChain);        
	}

	/*
	 * Prioratize by addding at a certain position
	 */
	public void addHandlerChainAt(int position, HandlerChain handlerChain)
	{
		m_handlerChains.add(position, handlerChain);
	}

	public void removeHandlerChain(HandlerChain handlerChain)
	{
		m_handlerChains.remove( handlerChain );
	}
	
    public List process( final List list )
        throws Exception
    {
    	List processedList = null;
    	
		Iterator handlerIterator = m_handlerChains.iterator();

		if (handlerIterator.hasNext())
		{
			// call the listener execute to see if they want to get added
			HandlerChain handlerChain = (HandlerChain) handlerIterator.next();
			processedList = handlerChain.process( list);
		}
		
		return processedList;
    }
    
	/**
	 * @return
	 */
	public List getHandlerChains()
	{
		return m_handlerChains;
	}


	public HandlerChain getHandlerChain(int index)
	{
		return (HandlerChain)m_handlerChains.get(index);
	}


	/**
	 * @param list
	 */
	public void setHandlerChains(List list)
	{
		m_handlerChains = list;
	}


}

--- NEW FILE: Handler.java ---
package org.krysalis.ruper.util.chainprocess;

import java.util.List;

public interface Handler
{
     List process( final List list);

}




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