com.openteach.diamond.network.waverider.command.MasterGreetCommandHandler.java Source code

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Here is the source code for com.openteach.diamond.network.waverider.command.MasterGreetCommandHandler.java

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/**
 * Copyright 2013 openteach
 *
 *  Licensed under the Apache License, Version 2.0 (the "License");
 *  you may not use this file except in compliance with the License.
 *  You may obtain a copy of the License at
 *
 *     http://www.apache.org/licenses/LICENSE-2.0
 *
 *  Unless required by applicable law or agreed to in writing, software
 *  distributed under the License is distributed on an "AS IS" BASIS,
 *  WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
 *  See the License for the specific language governing permissions and
 *  limitations under the License.
 */
package com.openteach.diamond.network.waverider.command;

import java.nio.ByteBuffer;

import org.apache.commons.logging.Log;
import org.apache.commons.logging.LogFactory;

import com.openteach.diamond.network.waverider.session.Session;

/**
 * 
 * @author raoqiang
 *
 */
public class MasterGreetCommandHandler implements CommandHandler {

    private static final Log logger = LogFactory.getLog(MasterGreetCommandHandler.class);

    @Override
    public Command handle(Command command) {
        logger.info(new StringBuilder("Command type = ").append(command.getType()).toString());
        String hello = new String(command.getPayLoad().array());
        logger.info(new StringBuilder("Master receive greet from slave : ")
                .append(command.getSession().getSlaveWorker().getIp()).append(", say:").append(hello));
        command.getSession().alive();
        return makeGreetCommand(command.getSession());
    }

    private Command makeGreetCommand(Session session) {
        String hello = new StringBuilder("Hello slave:").append(session.getSlaveWorker().getIp()).toString();
        ByteBuffer buffer = ByteBuffer.allocate(hello.getBytes().length);
        buffer.put(hello.getBytes());
        buffer.flip();

        Command command = new Command(1L, buffer);

        return command;
    }

}