load.SinkerRunner.java Source code

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Here is the source code for load.SinkerRunner.java

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/*
 * Copyright 2014 Luc Willems (T.M.M.)
 *
 * 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 load;

import com.google.common.util.concurrent.RateLimiter;
import net.Packet;
import net.Queue;
import org.slf4j.Logger;
import org.slf4j.LoggerFactory;

import java.util.concurrent.TimeUnit;

/**
 * Created by luc on 9/4/14.
 */
public class SinkerRunner implements Runnable {
    private final Logger log = LoggerFactory.getLogger(SinkerRunner.class);
    private final Queue<Packet> queue;
    private final SinkerMBean input;
    private final RateLimiter limiter;
    private double prevRate;

    public SinkerRunner(Queue<Packet> queue, SinkerMBean input) {
        this.queue = queue;
        this.input = input;
        this.limiter = RateLimiter.create(input.getRate(), 1, TimeUnit.MICROSECONDS);
        this.prevRate = input.getRate();
    }

    @Override
    public void run() {
        Thread.currentThread().setName("sinker-" + Thread.currentThread().getId());
        try {
            log.info("start sinker");
            while (input.isRunable()) {
                Packet p = queue.deQueue();
                if (p != null) {
                    log.debug("got  id: {} prio:{} size:{}", p.id, p.prio, p.size);
                    limiter.acquire(p.size);
                } else {
                    log.info("got NULL, waiting for input...");
                    try {
                        Thread.sleep(5);
                    } catch (InterruptedException ignore) {
                    }
                    log.debug("found input, lets rock and roll");
                }
                if (input.getRate() != prevRate) {
                    log.info("new sinker rate: {}", input.getRate());
                    limiter.setRate(input.getRate());
                    prevRate = input.getRate();
                }
            }
        } catch (Throwable t) {
            log.error("oeps:sinker dead", t);
        }
        log.info("sinker done");
    }
}