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CompactionMetrics.java
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CompactionMetrics.java
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/**
* 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.pulsar.broker.stats.metrics;
import com.google.common.collect.Lists;
import com.google.common.collect.Maps;
import java.util.List;
import java.util.Map;
import java.util.Optional;
import lombok.extern.slf4j.Slf4j;
import org.apache.pulsar.broker.PulsarServerException;
import org.apache.pulsar.broker.PulsarService;
import org.apache.pulsar.common.naming.TopicName;
import org.apache.pulsar.common.stats.Metrics;
import org.apache.pulsar.compaction.Compactor;
import org.apache.pulsar.compaction.CompactorMXBean;
@Slf4j
public class CompactionMetrics extends AbstractMetrics {
private List<Metrics> metricsCollection;
private Map<String, Double> tempAggregatedMetricsMap;
private Map<Metrics, List<String>> topicsByDimensionMap;
private Optional<CompactorMXBean> stats;
public CompactionMetrics(PulsarService pulsar) {
super(pulsar);
this.metricsCollection = Lists.newArrayList();
this.topicsByDimensionMap = Maps.newHashMap();
this.tempAggregatedMetricsMap = Maps.newHashMap();
this.stats = getCompactorMXBean();
}
@Override
public synchronized List<Metrics> generate() {
return aggregate(groupTopicsByDimension());
}
/**
* Aggregation by namespace.
*
* @return List<Metrics>
*/
private List<Metrics> aggregate(Map<Metrics, List<String>> topicsByDimension) {
metricsCollection.clear();
if (stats.isPresent()) {
CompactorMXBean compactorMXBean = stats.get();
for (Map.Entry<Metrics, List<String>> entry : topicsByDimension.entrySet()) {
Metrics metrics = entry.getKey();
List<String> topics = entry.getValue();
tempAggregatedMetricsMap.clear();
for (String topic : topics) {
populateAggregationMapWithSum(tempAggregatedMetricsMap, "brk_cp_totalCompactionCount",
compactorMXBean.getTotalCompactionCount(topic));
populateAggregationMapWithSum(tempAggregatedMetricsMap, "brk_cp_totalCompactionRemovedEventCount",
compactorMXBean.getTotalCompactionRemovedEventCount(topic));
populateAggregationMapWithSum(tempAggregatedMetricsMap, "brk_cp_totalCompactionSucceedCount",
compactorMXBean.getTotalCompactionSucceedCount(topic));
populateAggregationMapWithSum(tempAggregatedMetricsMap, "brk_cp_totalCompactionFailedCount",
compactorMXBean.getTotalCompactionFailedCount(topic));
}
for (Map.Entry<String, Double> ma : tempAggregatedMetricsMap.entrySet()) {
metrics.put(ma.getKey(), ma.getValue());
}
metricsCollection.add(metrics);
}
}
return metricsCollection;
}
private Map<Metrics, List<String>> groupTopicsByDimension() {
topicsByDimensionMap.clear();
if (stats.isPresent()) {
tempAggregatedMetricsMap.clear();
for (String topic : stats.get().getTopics()) {
String namespace = TopicName.get(topic).getNamespace();
Metrics metrics = super.createMetricsByDimension(namespace);
populateDimensionMap(topicsByDimensionMap, metrics, topic);
}
}
return topicsByDimensionMap;
}
private Optional<CompactorMXBean> getCompactorMXBean() {
Compactor compactor = null;
try {
compactor = pulsar.getCompactor(false);
} catch (PulsarServerException e) {
log.error("get compactor error", e);
}
return Optional.ofNullable(compactor).map(c -> c.getStats());
}
private void populateDimensionMap(Map<Metrics, List<String>> topicsByDimensionMap, Metrics metrics, String topic) {
if (!topicsByDimensionMap.containsKey(metrics)) {
topicsByDimensionMap.put(metrics, Lists.newArrayList(topic));
} else {
topicsByDimensionMap.get(metrics).add(topic);
}
}
}