104 lines
3.9 KiB
Java
104 lines
3.9 KiB
Java
/*
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* Copyright (c) 2014 Hewlett-Packard Development Company, L.P.
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*
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* Licensed to the Apache Software Foundation (ASF) under one
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* or more contributor license agreements. See the NOTICE file
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* distributed with this work for additional information
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* regarding copyright ownership. The ASF licenses this file
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* to you under the Apache License, Version 2.0 (the
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* "License"); you may not use this file except in compliance
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* with the License. You may obtain a copy of the License at
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*
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* http://www.apache.org/licenses/LICENSE-2.0
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*
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* Unless required by applicable law or agreed to in writing, software
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* distributed under the License is distributed on an "AS IS" BASIS,
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* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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* See the License for the specific language governing permissions and
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* limitations under the License.
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*/
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package com.hpcloud.mon.persister.repository;
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import com.google.inject.Inject;
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import com.hpcloud.mon.persister.disruptor.AlarmStateHistoryDisruptor;
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import com.hpcloud.mon.persister.disruptor.MetricDisruptor;
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import com.hpcloud.mon.persister.disruptor.event.AlarmStateTransitionedEventHolder;
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import com.hpcloud.mon.persister.disruptor.event.MetricHolder;
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import com.lmax.disruptor.EventTranslator;
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import com.lmax.disruptor.dsl.Disruptor;
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import io.dropwizard.lifecycle.Managed;
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import org.slf4j.Logger;
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import org.slf4j.LoggerFactory;
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public class RepositoryCommitHeartbeat implements Managed {
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private static Logger logger = LoggerFactory.getLogger(RepositoryCommitHeartbeat.class);
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private final MetricDisruptor metricDisruptor;
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private final AlarmStateHistoryDisruptor alarmHistoryDisruptor;
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private final HeartbeatRunnable deduperRunnable;
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@Inject
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public RepositoryCommitHeartbeat(MetricDisruptor metricDisruptor, AlarmStateHistoryDisruptor alarmHistoryDisruptor) {
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this.metricDisruptor = metricDisruptor;
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this.alarmHistoryDisruptor = alarmHistoryDisruptor;
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this.deduperRunnable = new HeartbeatRunnable(metricDisruptor, alarmHistoryDisruptor);
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}
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@Override
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public void start() throws Exception {
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Thread heartbeatThread = new Thread(deduperRunnable);
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heartbeatThread.start();
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}
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@Override
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public void stop() throws Exception {
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}
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private static class HeartbeatRunnable implements Runnable {
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private static final Logger logger = LoggerFactory.getLogger(HeartbeatRunnable.class);
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private final Disruptor metricDisruptor;
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private final Disruptor alarmHistoryDisruptor;
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private HeartbeatRunnable(Disruptor metricDisruptor, Disruptor alarmHistoryDisruptor) {
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this.metricDisruptor = metricDisruptor;
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this.alarmHistoryDisruptor = alarmHistoryDisruptor;
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}
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@Override
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public void run() {
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for (; ; ) {
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try {
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// Send a heartbeat every second.
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Thread.sleep(1000);
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logger.debug("Waking up after sleeping 1 seconds, yawn...");
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// Send heartbeat
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logger.debug("Sending heartbeat message");
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metricDisruptor.publishEvent(new EventTranslator<MetricHolder>() {
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@Override
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public void translateTo(MetricHolder event, long sequence) {
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event.setEnvelope(null);
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}
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});
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alarmHistoryDisruptor.publishEvent(new EventTranslator<AlarmStateTransitionedEventHolder>() {
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@Override
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public void translateTo(AlarmStateTransitionedEventHolder event, long sequence) {
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event.setEvent(null);
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}
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});
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} catch (Exception e) {
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logger.error("Failed to send heartbeat", e);
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}
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}
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}
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}
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}
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