SSLAsyncStream.java

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package com.sun.grizzly.ssl;

import com.sun.grizzly.util.InputReader;
import com.sun.grizzly.util.SSLUtils;
import java.io.IOException;
import java.nio.ByteBuffer;
import java.nio.channels.SocketChannel;
import java.util.logging.Level;
import java.util.logging.Logger;
import javax.net.ssl.SSLEngine;

/**
 * This class add support for TLS|SSL to a {@link InputReader}.
 *
 * @author Jean-Francois Arcand
 */
public class SSLAsyncStream extends InputReader {

    /**
     * The SSLEngine to use for unwrapping bytes.
     */
    private SSLEngine sslEngine;
    
    
    /**
     * The encrypted {@link ByteBuffer}
     */
    private ByteBuffer inputBB;
    
    
    public SSLAsyncStream (final ByteBuffer byteBuffer) {
        this.byteBuffer = byteBuffer;
    }
    
    /**
     * Read and decrypt bytes from the underlying SSL connections. All
     * the SSLEngine operations are delegated to class {@link SSLUtils}.
     */
    @Override
    protected int doRead(){   
        int initialPosition = byteBuffer.position();
        int byteRead = 0;
        while (byteBuffer.position() == initialPosition){
            int count = SSLUtils.doRead((SocketChannel) key.channel(), inputBB,
                    sslEngine, readTimeout).bytesRead;
            if (count > 0) {
                byteRead += count;
                try{
                    byteBuffer = SSLUtils.unwrapAll(byteBuffer,inputBB,sslEngine);
                } catch (IOException ex){
                    Logger logger = SSLSelectorThread.logger();
                    if ( logger.isLoggable(Level.FINE) )
                        logger.log(Level.FINE,"SSLUtils.unwrapAll",ex);
                    return -1;
                }
            } else if (count == -1 && byteRead == 0) {
                byteRead = -1;
                break;
            } else {
                break;
            }   
        }

        byteBuffer.flip();
        return byteRead;
    } 

    
    public SSLEngine getSslEngine() {
        return sslEngine;
    }

    
    public void setSslEngine(SSLEngine sslEngine) {
        this.sslEngine = sslEngine;
    }

    
    public ByteBuffer getInputBB() {
        return inputBB;
    }

    
    public void setInputBB(ByteBuffer inputBB) {
        this.inputBB = inputBB;
    }
}