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package com.pusher.java_websocket;

import java.io.IOException;
import java.nio.ByteBuffer;
import java.nio.channels.ByteChannel;
import java.nio.channels.SocketChannel;

import javax.net.ssl.SSLException;


public class AbstractWrappedByteChannel implements WrappedByteChannel {

	private final ByteChannel channel;

	public AbstractWrappedByteChannel( ByteChannel towrap ) {
		this.channel = towrap;
	}

	public AbstractWrappedByteChannel( WrappedByteChannel towrap ) {
		this.channel = towrap;
	}

	@Override
	public int read( ByteBuffer dst ) throws IOException {
		return channel.read( dst );
	}

	@Override
	public boolean isOpen() {
		return channel.isOpen();
	}

	@Override
	public void close() throws IOException {
		channel.close();
	}

	@Override
	public int write( ByteBuffer src ) throws IOException {
		return channel.write( src );
	}

	@Override
	public boolean isNeedWrite() {
		return channel instanceof WrappedByteChannel ? ( (WrappedByteChannel) channel ).isNeedWrite() : false;
	}

	@Override
	public void writeMore() throws IOException {
		if( channel instanceof WrappedByteChannel )
			( (WrappedByteChannel) channel ).writeMore();

	}

	@Override
	public boolean isNeedRead() {
		return channel instanceof WrappedByteChannel ? ( (WrappedByteChannel) channel ).isNeedRead() : false;

	}

	@Override
	public int readMore( ByteBuffer dst ) throws SSLException {
		return channel instanceof WrappedByteChannel ? ( (WrappedByteChannel) channel ).readMore( dst ) : 0;
	}

	@Override
	public boolean isBlocking() {
		if( channel instanceof SocketChannel )
			return ( (SocketChannel) channel ).isBlocking();
		else if( channel instanceof WrappedByteChannel )
			return ( (WrappedByteChannel) channel ).isBlocking();
		return false;
	}

}