storm-client/src/jvm/org/apache/storm/metrics2/reporters/ConsoleStormReporter.java

/**
 * 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
 * <p/>
 * http://www.apache.org/licenses/LICENSE-2.0
 * <p/>
 * 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.storm.metrics2.reporters;

import com.codahale.metrics.ConsoleReporter;
import com.codahale.metrics.MetricRegistry;
import java.util.Locale;
import java.util.Map;
import java.util.concurrent.TimeUnit;
import org.apache.storm.daemon.metrics.ClientMetricsUtils;
import org.apache.storm.metrics2.filters.StormMetricsFilter;
import org.slf4j.Logger;
import org.slf4j.LoggerFactory;

public class ConsoleStormReporter extends ScheduledStormReporter {
    private static final Logger LOG = LoggerFactory.getLogger(ConsoleStormReporter.class);

    @Override
    public void prepare(MetricRegistry registry, Map stormConf, Map reporterConf) {
        LOG.debug("Preparing ConsoleReporter");
        ConsoleReporter.Builder builder = ConsoleReporter.forRegistry(registry);

        builder.outputTo(System.out);
        Locale locale = ClientMetricsUtils.getMetricsReporterLocale(stormConf);
        if (locale != null) {
            builder.formattedFor(locale);
        }

        TimeUnit rateUnit = ClientMetricsUtils.getMetricsRateUnit(stormConf);
        if (rateUnit != null) {
            builder.convertRatesTo(rateUnit);
        }

        TimeUnit durationUnit = ClientMetricsUtils.getMetricsDurationUnit(stormConf);
        if (durationUnit != null) {
            builder.convertDurationsTo(durationUnit);
        }

        StormMetricsFilter filter = getMetricsFilter(reporterConf);
        if (filter != null) {
            builder.filter(filter);
        }

        //defaults to 10
        reportingPeriod = getReportPeriod(reporterConf);

        //defaults to seconds
        reportingPeriodUnit = getReportPeriodUnit(reporterConf);

        reporter = builder.build();
    }

}