/*
* Copyright (c) 2014 Spotify AB.
*
* 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 com.spotify.helios.agent;
import com.spotify.helios.common.Version;
import com.spotify.helios.common.descriptors.AgentInfo;
import com.spotify.helios.servicescommon.coordination.NodeUpdaterFactory;
import com.spotify.helios.servicescommon.coordination.Paths;
import com.spotify.helios.servicescommon.coordination.ZooKeeperNodeUpdater;
import java.lang.management.RuntimeMXBean;
import java.util.concurrent.ScheduledExecutorService;
import java.util.concurrent.ScheduledFuture;
import java.util.concurrent.TimeUnit;
import static com.google.common.base.Preconditions.checkNotNull;
import static java.util.concurrent.TimeUnit.MINUTES;
/**
* Report various Agent runtime information via ZK so it can be visible to clients of Helios.
*/
public class AgentInfoReporter extends InterruptingScheduledService {
public static final int DEFAULT_INTERVAL = 1;
public static final TimeUnit DEFAUL_TIMEUNIT = MINUTES;
private final RuntimeMXBean runtimeMXBean;
private final ZooKeeperNodeUpdater nodeUpdater;
private final int interval;
private final TimeUnit timeUnit;
AgentInfoReporter(final Builder builder) {
this.runtimeMXBean = checkNotNull(builder.runtimeMXBean);
this.nodeUpdater = builder.nodeUpdaterFactory.create(Paths.statusHostAgentInfo(builder.host));
this.interval = builder.interval;
this.timeUnit = checkNotNull(builder.timeUnit);
}
@Override
protected void runOneIteration() {
final AgentInfo agentInfo = AgentInfo.newBuilder()
.setName(runtimeMXBean.getName())
.setVmName(runtimeMXBean.getVmName())
.setVmVendor(runtimeMXBean.getVmVendor())
.setVmVersion(runtimeMXBean.getVmVersion())
.setSpecName(runtimeMXBean.getSpecName())
.setSpecVendor(runtimeMXBean.getSpecVendor())
.setSpecVersion(runtimeMXBean.getSpecVersion())
.setInputArguments(runtimeMXBean.getInputArguments())
.setUptime(runtimeMXBean.getUptime())
.setStartTime(runtimeMXBean.getStartTime())
.setVersion(Version.POM_VERSION)
.build();
nodeUpdater.update(agentInfo.toJsonBytes());
}
@Override
protected ScheduledFuture<?> schedule(final Runnable runnable,
final ScheduledExecutorService executorService) {
return executorService.scheduleWithFixedDelay(runnable, 0, interval, timeUnit);
}
public static Builder newBuilder() {
return new Builder();
}
public static class Builder {
Builder() {
}
private NodeUpdaterFactory nodeUpdaterFactory;
private RuntimeMXBean runtimeMXBean;
private String host;
private int interval = DEFAULT_INTERVAL;
private TimeUnit timeUnit = DEFAUL_TIMEUNIT;
public Builder setNodeUpdaterFactory(final NodeUpdaterFactory nodeUpdaterFactory) {
this.nodeUpdaterFactory = nodeUpdaterFactory;
return this;
}
public Builder setRuntimeMXBean(
final RuntimeMXBean runtimeMXBean) {
this.runtimeMXBean = runtimeMXBean;
return this;
}
public Builder setHost(final String host) {
this.host = host;
return this;
}
public Builder setInterval(final int interval) {
this.interval = interval;
return this;
}
public Builder setTimeUnit(final TimeUnit timeUnit) {
this.timeUnit = timeUnit;
return this;
}
public AgentInfoReporter build() {
return new AgentInfoReporter(this);
}
}
}