io.fluo.core.metrics.ReporterUtil.java Source code

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Here is the source code for io.fluo.core.metrics.ReporterUtil.java

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/*
 * Copyright 2014 Fluo authors (see AUTHORS)
 *
 * Licensed 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 io.fluo.core.metrics;

import java.util.ArrayList;
import java.util.List;
import java.util.ServiceLoader;

import com.codahale.metrics.JmxReporter;
import com.codahale.metrics.MetricRegistry;
import io.fluo.core.impl.Environment;
import io.fluo.core.metrics.ReporterStarter.Params;
import org.apache.commons.configuration.Configuration;

public class ReporterUtil {
    public static AutoCloseable setupReporters(final Environment env, final String domain) {
        ServiceLoader<ReporterStarter> serviceLoader = ServiceLoader.load(ReporterStarter.class);

        final List<AutoCloseable> allReporters = new ArrayList<>();

        for (ReporterStarter rs : serviceLoader) {
            List<AutoCloseable> reporters = rs.start(new Params() {

                @Override
                public Configuration getConfiguration() {
                    return env.getConfiguration();
                }

                @Override
                public MetricRegistry getMetricRegistry() {
                    return env.getSharedResources().getMetricRegistry();
                }

                @Override
                public String getDomain() {
                    return domain;
                }
            });

            allReporters.addAll(reporters);
        }

        if (allReporters.size() == 0) {
            JmxReporter jmxReporter = JmxReporter.forRegistry(env.getSharedResources().getMetricRegistry())
                    .inDomain(domain).build();
            jmxReporter.start();
            allReporters.add(jmxReporter);
        }

        return new AutoCloseable() {

            @Override
            public void close() {
                for (AutoCloseable closeable : allReporters) {
                    try {
                        closeable.close();
                    } catch (Exception e) {
                        e.printStackTrace();
                    }
                }
            }
        };
    }
}