package org.csstudio.dal.simple.impl;

import org.csstudio.dal.simple.AnyData;
import org.csstudio.dal.simple.AnyDataChannel;
import org.csstudio.dal.simple.ChannelFactory;
import org.csstudio.dal.simple.ChannelListener;
import org.csstudio.dal.simple.RemoteInfo;
import org.csstudio.dal.spi.DefaultPropertyFactoryBroker;
import org.csstudio.dal.spi.PropertyFactoryBroker;

/** PV Factory
 *  <p>
 *  Locates the one and only expected implementation of the IPVFactory
 *  via an extension to the pvfactory extension point
 *  and creates the PV through it.
 *  
 */
public class ChannelFactoryImpl implements ChannelFactory
{
	
	public static void main(String[] args) {
		
		try {
		
			ChannelFactory cf= ChannelFactoryImpl.getInstance();
			
			AnyDataChannel ch;
			ch = cf.createChannel("sfgfs");
			AnyData data= ch.getData();

			ch.addListener(new ChannelListener() {
				
				@Override
				public void channelStateUpdate(AnyDataChannel channel) {
					// TODO Auto-generated method stub
					
				}
				
				@Override
				public void channelDataUpdate(AnyDataChannel channel) {
					// TODO Auto-generated method stub
					
				}
			});
			
		} catch (Exception e) {
			// TODO Auto-generated catch block
			e.printStackTrace();
		}
		
		
		
	}
	private static ChannelFactory channelFactory;

    private final PropertyFactoryBroker propertyFactoryManager;
    
    /**
     * Returns a default implementation of <code>ChannelFactory</code>.
     * @return default <code>ChannelFactory</code>
     */
    public static final synchronized ChannelFactory getInstance() {
    	if (channelFactory == null) {
			channelFactory = new ChannelFactoryImpl(DefaultPropertyFactoryBroker.getInstance());
		}
		return channelFactory;
    }
    
    private ChannelFactoryImpl(PropertyFactoryBroker commonFactory) {
    	this.propertyFactoryManager = commonFactory;
    }

    /** {@inheritDoc} */
    @Override
	final public String[] getSupportedConnectionTypes() throws Exception
    {	
    	String[] s= propertyFactoryManager.getSupportedPlugTypes();
    	String[] ss= new String[s.length];
    	for (int i = 0; i < ss.length; i++) {
			ss[i]=RemoteInfo.DAL_TYPE_PREFIX+s[i];
		}
    	return ss;
    }

    /** {@inheritDoc} */
    @Override
	final public AnyDataChannel createChannel(final String name) throws Exception
    {
    	return propertyFactoryManager.getProperty(name);
    }
    
    /** {@inheritDoc} */
    @Override
	final public AnyDataChannel createChannel(final RemoteInfo remoteInfo) throws Exception {
    	return propertyFactoryManager.getProperty(remoteInfo);
    }
    
}