GridTcpRouterNioParser.java

/*
 * 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 org.apache.ignite.internal.client.router.impl;

import java.io.IOException;
import java.nio.ByteBuffer;
import org.apache.ignite.IgniteCheckedException;
import org.apache.ignite.internal.client.marshaller.GridClientMarshaller;
import org.apache.ignite.internal.processors.rest.client.message.GridClientHandshakeResponse;
import org.apache.ignite.internal.processors.rest.client.message.GridClientMessage;
import org.apache.ignite.internal.processors.rest.client.message.GridClientPingPacket;
import org.apache.ignite.internal.processors.rest.client.message.GridClientResponse;
import org.apache.ignite.internal.processors.rest.client.message.GridRouterRequest;
import org.apache.ignite.internal.processors.rest.client.message.GridRouterResponse;
import org.apache.ignite.internal.processors.rest.protocols.tcp.GridTcpRestParser;
import org.apache.ignite.internal.util.nio.GridNioSession;
import org.apache.ignite.internal.util.typedef.internal.U;

import static org.apache.ignite.internal.processors.rest.protocols.tcp.GridMemcachedMessage.IGNITE_REQ_FLAG;

/**
 *
 */
class GridTcpRouterNioParser extends GridTcpRestParser {
    /** Number of received messages. */
    private volatile long rcvCnt;

    /** Number of sent messages. */
    private volatile long sndCnt;

    /**
     */
    public GridTcpRouterNioParser() {
        super(false);
    }

    /** {@inheritDoc} */
    @Override protected GridClientMessage parseClientMessage(GridNioSession ses, ParserState state) {
        rcvCnt++;

        return new GridRouterRequest(
            state.buffer().toByteArray(),
            state.header().reqId(),
            state.header().clientId(),
            state.header().destinationId());
    }

    /** {@inheritDoc} */
    @Override public ByteBuffer encode(GridNioSession ses, Object msg) throws IOException, IgniteCheckedException {
        sndCnt++;

        if (msg instanceof GridRouterResponse) {
            GridRouterResponse resp = (GridRouterResponse)msg;

            ByteBuffer res = ByteBuffer.allocate(resp.body().length + 45);

            res.put(IGNITE_REQ_FLAG);
            res.putInt(resp.body().length + 40);
            res.putLong(resp.requestId());
            res.put(U.uuidToBytes(resp.clientId()));
            res.put(U.uuidToBytes(resp.destinationId()));
            res.put(resp.body());

            res.flip();

            return res;
        }
        else if (msg instanceof GridClientResponse) {
            GridClientMarshaller marsh = marshaller(ses);

            GridClientMessage clientMsg = (GridClientMessage)msg;

            ByteBuffer res = marsh.marshal(msg, 45);

            ByteBuffer slice = res.slice();

            slice.put(IGNITE_REQ_FLAG);
            slice.putInt(res.remaining() - 5);
            slice.putLong(clientMsg.requestId());
            slice.put(U.uuidToBytes(clientMsg.clientId()));
            slice.put(U.uuidToBytes(clientMsg.destinationId()));

            return res;
        }
        else if (msg instanceof GridClientPingPacket || msg instanceof GridClientHandshakeResponse)
            return super.encode(ses, msg);
        else
            throw new IgniteCheckedException("Unsupported message: " + msg);
    }

    /**
     * @return Number of received messages.
     */
    public long getReceivedCount() {
        return rcvCnt;
    }

    /**
     * @return Number of sent messages.
     */
    public long getSendCount() {
        return sndCnt;
    }
}