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package jade.imtp.leap.nio;

//#J2ME_EXCLUDE_FILE
import jade.imtp.leap.ICPException;
import java.io.IOException;
import java.nio.channels.Selector;
import java.nio.channels.SocketChannel;
import java.util.logging.Level;
import java.util.logging.Logger;
import javax.net.ssl.SSLContext;
import javax.net.ssl.SSLEngine;

/**
 * This class provides a nio based server connection for which ssl can be configured. A {@link SSLEngine} is used
 * for dealing with handshaking and encrypting/decrypting application data. The superclass does the actual
 * {@link #fillHeader(java.nio.ByteBuffer) reading} (also {@link #fillPayload(java.nio.ByteBuffer)}),
 * and {@link #writeToChannel(java.nio.ByteBuffer) writing} from the SocketChannel and handles the application data.
 *
 * @see SSLContext
 * @author eduard
 */
public class NIOJICPSConnection extends NIOJICPConnection {

    private SSLEngineHelper helper = null;
    private static Logger log = Logger.getLogger(NIOJICPSConnection.class.getName());

    public NIOJICPSConnection() {
    }

    /**
     * Initializes this connection by setting a {@link SSLEngineHelper } and calling the super.
     *
     * @see SSLEngineHelper
     * @param key the Selection key provided by the {@link Selector}.
     * @throws ICPException
     */
    @Override
     void init(SocketChannel channel) throws ICPException {
        super.init(channel);
        if (log.isLoggable(Level.FINE)) {
            log.fine("initialize ssl tooling");
        }
        helper = new SSLEngineHelper(getRemoteHost(), channel.socket().getPort(), this);
        addBufferTransformer(helper);
    }

    /**
     * first try to send ssl close packet, then close channel
     * @throws IOException
     */
    @Override
    public void close() throws IOException {

        try {
            helper.close();
        } catch (IOException ex) {
        }
        super.close();
    }

}