agent/store/graphite/src/main/java/org/apache/sirona/graphite/GraphiteGaugeDataStore.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
 *
 *      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.sirona.graphite;

import org.apache.sirona.Role;
import org.apache.sirona.configuration.ioc.IoCs;
import org.apache.sirona.store.gauge.AggregatedGaugeDataStoreAdapter;
import org.apache.sirona.store.gauge.Value;

import java.io.IOException;
import java.util.Map;
import java.util.logging.Level;
import java.util.logging.Logger;

public class GraphiteGaugeDataStore extends AggregatedGaugeDataStoreAdapter {
    private static final Logger LOGGER = Logger.getLogger(GraphiteGaugeDataStore.class.getName());

    private static final String GAUGE_PREFIX = "gauge-";

    private final Graphite graphite = IoCs.findOrCreateInstance(GraphiteBuilder.class).build();

    @Override
    protected void pushAggregatedGauges(final Map<Role, Value> gauges) {
        try {
            graphite.open();

            // timestamp is the unix epoch time in seconds NOT ms.
            final long ts = System.currentTimeMillis() / 1000l;

            for (final Map.Entry<Role, Value> gauge : gauges.entrySet()) {
                graphite.push(GAUGE_PREFIX + gauge.getKey().getName(), gauge.getValue().getMean(), ts);
            }
        } catch (final IOException e) {
            LOGGER.log(Level.SEVERE, e.getMessage(), e);
        } finally {
            graphite.close();
        }
    }
}