com.hazelcast.simulator.protocol.handler.MessageTestConsumeHandler.java Source code

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Here is the source code for com.hazelcast.simulator.protocol.handler.MessageTestConsumeHandler.java

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/*
 * Copyright (c) 2008-2015, Hazelcast, Inc. All Rights Reserved.
 *
 * 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.hazelcast.simulator.protocol.handler;

import com.hazelcast.simulator.protocol.core.Response;
import com.hazelcast.simulator.protocol.core.SimulatorAddress;
import com.hazelcast.simulator.protocol.core.SimulatorMessage;
import com.hazelcast.simulator.protocol.core.TestProcessorManager;
import io.netty.channel.ChannelHandlerContext;
import io.netty.channel.SimpleChannelInboundHandler;
import io.netty.util.AttributeKey;
import org.apache.log4j.Logger;

import static com.hazelcast.simulator.protocol.operation.OperationCodec.fromSimulatorMessage;
import static java.lang.String.format;

/**
 * A {@link SimpleChannelInboundHandler} to to deserialize a {@link com.hazelcast.simulator.protocol.operation.SimulatorOperation}
 * from a received {@link SimulatorMessage} and execute it on the {@link TestProcessorManager} of the addressed Simulator Test.
 */
public class MessageTestConsumeHandler extends SimpleChannelInboundHandler<SimulatorMessage> {

    private static final Logger LOGGER = Logger.getLogger(MessageTestConsumeHandler.class);

    private final AttributeKey<Integer> forwardAddressIndex = AttributeKey.valueOf("forwardAddressIndex");

    private final TestProcessorManager testProcessorManager;
    private final SimulatorAddress localAddress;

    public MessageTestConsumeHandler(TestProcessorManager testProcessorManager, SimulatorAddress localAddress) {
        this.testProcessorManager = testProcessorManager;
        this.localAddress = localAddress;
    }

    @Override
    public void channelRead0(ChannelHandlerContext ctx, SimulatorMessage msg) {
        if (LOGGER.isTraceEnabled()) {
            LOGGER.trace(format("[%d] %s MessageTestConsumeHandler is consuming message...", msg.getMessageId(),
                    localAddress));
        }

        Response response = new Response(msg);
        int testAddressIndex = ctx.attr(forwardAddressIndex).get();
        if (testAddressIndex == 0) {
            if (LOGGER.isTraceEnabled()) {
                LOGGER.trace(format("[%d] forwarding message to all tests", msg.getMessageId()));
            }
            testProcessorManager.processOnAllTests(response, fromSimulatorMessage(msg), msg.getSource());
        } else {
            if (LOGGER.isTraceEnabled()) {
                LOGGER.trace(format("[%d] forwarding message to test %d", msg.getMessageId(), testAddressIndex));
            }
            testProcessorManager.processOnTest(response, fromSimulatorMessage(msg), msg.getSource(),
                    testAddressIndex);
        }
        ctx.writeAndFlush(response);
    }
}