/*
* 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 org.apache.flink.metrics.ganglia;
import com.codahale.metrics.ScheduledReporter;
import info.ganglia.gmetric4j.gmetric.GMetric;
import org.apache.flink.annotation.PublicEvolving;
import org.apache.flink.dropwizard.ScheduledDropwizardReporter;
import org.apache.flink.metrics.MetricConfig;
import java.io.IOException;
import java.util.concurrent.TimeUnit;
@PublicEvolving
public class GangliaReporter extends ScheduledDropwizardReporter {
public static final String ARG_DMAX = "dmax";
public static final String ARG_TMAX = "tmax";
public static final String ARG_TTL = "ttl";
public static final String ARG_MODE_ADDRESSING = "addressingMode";
@Override
public ScheduledReporter getReporter(MetricConfig config) {
try {
String host = config.getString(ARG_HOST, null);
int port = config.getInteger(ARG_PORT, -1);
if (host == null || host.length() == 0 || port < 1) {
throw new IllegalArgumentException("Invalid host/port configuration. Host: " + host + " Port: " + port);
}
String addressingMode = config.getString(ARG_MODE_ADDRESSING, "MULTICAST");
int ttl = config.getInteger(ARG_TTL, 1);
GMetric gMetric = new GMetric(host, port, GMetric.UDPAddressingMode.valueOf(addressingMode), ttl);
String prefix = config.getString(ARG_PREFIX, null);
String conversionRate = config.getString(ARG_CONVERSION_RATE, null);
String conversionDuration = config.getString(ARG_CONVERSION_DURATION, null);
int dMax = config.getInteger(ARG_DMAX, 0);
int tMax = config.getInteger(ARG_TMAX, 60);
com.codahale.metrics.ganglia.GangliaReporter.Builder builder =
com.codahale.metrics.ganglia.GangliaReporter.forRegistry(registry);
if (prefix != null) {
builder.prefixedWith(prefix);
}
if (conversionRate != null) {
builder.convertRatesTo(TimeUnit.valueOf(conversionRate));
}
if (conversionDuration != null) {
builder.convertDurationsTo(TimeUnit.valueOf(conversionDuration));
}
builder.withDMax(dMax);
builder.withTMax(tMax);
log.info("Configured GangliaReporter with {host:{}, port:{}, dmax:{}, tmax:{}, ttl:{}, addressingMode:{}}",
host, port, dMax, tMax, ttl, addressingMode);
return builder.build(gMetric);
} catch (IOException e) {
throw new RuntimeException("Error while instantiating GangliaReporter.", e);
}
}
}