com.spotify.metrics.example.JvmExample Maven / Gradle / Ivy
/*
* Copyright (c) 2016 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.metrics.example;
import com.spotify.metrics.core.MetricId;
import com.spotify.metrics.core.SemanticMetricRegistry;
import com.spotify.metrics.ffwd.FastForwardReporter;
import com.spotify.metrics.jvm.CpuGaugeSet;
import com.spotify.metrics.jvm.FileDescriptorGaugeSet;
import com.spotify.metrics.jvm.GarbageCollectorMetricSet;
import com.spotify.metrics.jvm.MemoryUsageGaugeSet;
import com.spotify.metrics.jvm.ThreadStatesMetricSet;
import java.util.concurrent.TimeUnit;
/**
* An example application that collects JVM statistics and reports them into FastForward.
*
* To run this example and see the output please setup a local ffwd and run ffwd debugger. Follow
* this link to see the https://github.com/spotify/ffwd#local-debugging
*/
public class JvmExample {
private static final MetricId APP_PREFIX = MetricId.build("jvm-example");
private static final SemanticMetricRegistry registry = new SemanticMetricRegistry();
public static void main(final String[] args) throws Exception {
registry.register(MetricId.build("jvm-memory"), new MemoryUsageGaugeSet());
registry.register(MetricId.build("jvm-gc"), new GarbageCollectorMetricSet());
registry.register(MetricId.build("jvm-threads"), new ThreadStatesMetricSet());
registry.register(MetricId.build("jvm-cpu"), CpuGaugeSet.create());
registry.register(MetricId.build("jvm-fd-ratio"), new FileDescriptorGaugeSet());
final FastForwardReporter reporter = FastForwardReporter
.forRegistry(registry)
.prefix(APP_PREFIX)
.schedule(TimeUnit.SECONDS, 5)
.build();
reporter.start();
System.out.println("Sending jvm metrics...");
System.in.read();
reporter.stop();
}
}