decoderactivetestresponsemessage.java

利用mina框架写的一个通信实例。初学者的一个好教程。

package org.apache.mina.examples.call.decode;

import org.apache.mina.common.ByteBuffer;
import org.apache.mina.examples.call.Constants;
import org.apache.mina.examples.call.message.AbstractMessage;
import org.apache.mina.examples.call.message.ActiveTestResponseMessage;
import org.apache.mina.protocol.ProtocolSession;

public class DecoderActiveTestResponseMessage extends DecoderAbstractMessage {

	public DecoderActiveTestResponseMessage() {
		super(Constants.TYPE_ACTIVE_TEST_RESPONSE);
	}

	protected AbstractMessage decodeBody(ProtocolSession session, ByteBuffer in) {

		// set byte order
		in.order(Constants.BYTE_ORDER);

		if (in.remaining() < this.head_len - Constants.HEADER_LEN_SUM) {
			return null;
		}

		ActiveTestResponseMessage message = new ActiveTestResponseMessage();
		message.setHead_len(this.head_len);
		message.setHead_command(this.head_command);
		message.setHead_sequence(this.head_sequence);

		return message;
	}

}