/*
* Copyright 2011 the original author or authors.
*
* 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 org.vertx.java.examples.perf;
import org.vertx.java.core.Handler;
import org.vertx.java.core.eventbus.Message;
import org.vertx.java.deploy.Verticle;
public class RateCounter extends Verticle implements Handler<Message<Integer>> {
private long last;
private long count;
private long start;
private long totCount;
public void handle(Message<Integer> msg) {
if (last == 0) {
last = start = System.currentTimeMillis();
}
count += msg.body;
totCount += msg.body;
}
public void start() {
vertx.eventBus().registerHandler("rate-counter", this);
vertx.setPeriodic(3000, new Handler<Long>() {
public void handle(Long id) {
if (last != 0) {
long now = System.currentTimeMillis();
double rate = 1000 * (double)count / (now - last);
double avRate = 1000 * (double)totCount / (now - start);
count = 0;
System.out.println((now - start) + " Rate: count/sec: " + rate + " Average rate: " + avRate);
last = now;
}
}
});
}
}