com.chinamobile.bcbsp.comm.BSPMessagesPack.java Source code

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Here is the source code for com.chinamobile.bcbsp.comm.BSPMessagesPack.java

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/*
 * Licensed to the Apache Software Foundation (ASF) under one
 * or more contributor license agreements.  See the NOTICE file
 * distributed with this work for additional information
 * regarding copyright ownership.  The ASF licenses this file
 * to you 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.chinamobile.bcbsp.comm;

import com.chinamobile.bcbsp.comm.io.util.WritableBSPMessages;

import java.io.DataInput;
import java.io.DataOutput;
import java.io.IOException;
import java.io.Serializable;
import java.util.ArrayList;
import java.util.Iterator;

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

/**
 * BSPMessagesPack. To pack the messages into array list for sending and
 * receiving all together.
 */
public class BSPMessagesPack implements Serializable, WritableBSPMessages {
    /** Class logger. */
    private static final Log LOG = LogFactory.getLog(BSPMessagesPack.class);
    /** the ID of serial version. */
    private static final long serialVersionUID = 1L;
    /** list of message to pack. */
    private ArrayList<IMessage> pack;

    /**
     * Constructor of BSPMessage.
     */
    public BSPMessagesPack() {
    }

    /** set method of pack. */
    public void setPack(ArrayList<IMessage> pack) {
        this.pack = pack;
    }

    /** get method of pack. */
    public ArrayList<IMessage> getPack() {
        return this.pack;
    }

    @Override
    public void readFields(DataInput in) throws IOException {
        int i = 0;
        IMessage bspMsg = null;
        int length = in.readInt();
        pack = new ArrayList<IMessage>();
        try {
            for (int j = 0; j < length; j++) {
                bspMsg = CommunicationFactory.createBspMessage();
                bspMsg.readFields(in);
                pack.add(bspMsg);
            }
        } catch (Exception e) {
            throw new RuntimeException("[RPC BSPMsgPack  write Exception]", e);
        }
        return;
    }

    @Override
    public void write(DataOutput out) throws IOException {
        int i = 0;
        Iterator<IMessage> bspMsgs = pack.iterator();
        out.writeInt(pack.size());
        try {
            while (bspMsgs.hasNext()) {
                IMessage bspMsg = bspMsgs.next();
                bspMsg.write(out);
            }
        } catch (Exception e) {
            throw new RuntimeException("[RPC BSPMsgPack  write Exception]", e);
        }
        return;
    }

    @Override
    public int getMsgSize() {
        return 0;
    }

    @Override
    public int getMsgCount() {
        return this.pack.size();
    }

    @Override
    public void clearBSPMsgs() {
        // TODO Auto-generated method stub
    }
}