NonBlockingTCPIOClient.java

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package com.sun.grizzly.utils;

import com.sun.grizzly.TCPConnectorHandler;
import java.io.EOFException;
import java.io.IOException;
import java.net.InetSocketAddress;
import java.nio.ByteBuffer;

/**
 * TCP client that exercise the non blocking ConnectorHandler.
 *
 * @author Jeanfrancois Arcand
 */
public class NonBlockingTCPIOClient implements NonBlockingIOClient {
    private String host;
    private int port;
    
    private TCPConnectorHandler tcpConnectorHandler;
    
    
    public NonBlockingTCPIOClient(String host, int port) {
        this.host = host;
        this.port = port;
        tcpConnectorHandler = new TCPConnectorHandler();
    }
    
    public void connect() throws IOException {
        tcpConnectorHandler.connect(new InetSocketAddress(host, port));
    }
    
    public void send(byte[] msg) throws IOException {
        send(msg, true);
    }

    public void send(byte[] msg, boolean needFlush) throws IOException {
        tcpConnectorHandler.write(ByteBuffer.wrap(msg),true);
    }
    
    public int receive(byte[] buf) throws IOException {
        return receive(buf, buf.length);
    }

    public int receive(byte[] buf, int length) throws IOException {
        ByteBuffer byteBuffer = ByteBuffer.wrap(buf,0,length);
        long bytesRead = tcpConnectorHandler.read(byteBuffer,true);

        if (bytesRead == -1) {
            throw new EOFException("Unexpected client EOF!");
        }
        
        return (int) bytesRead;
    }
    
    public void close() throws IOException {
        tcpConnectorHandler.close();
    }
}