kfaraz commented on code in PR #18314: URL: https://github.com/apache/druid/pull/18314#discussion_r2230159439
########## server/src/main/java/org/apache/druid/server/metrics/BrokerSegmentCountStatsMonitor.java: ########## @@ -0,0 +1,60 @@ +/* + * 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.druid.server.metrics; + +import com.google.inject.Inject; +import org.apache.druid.java.util.emitter.service.ServiceEmitter; +import org.apache.druid.java.util.emitter.service.ServiceMetricEvent; +import org.apache.druid.java.util.metrics.AbstractMonitor; +import org.apache.druid.server.coordinator.stats.RowKey; + +import java.util.Map; + +/** + * Monitor that tracks the number of segments of a datasource currently queryable by this Broker. + */ +public class BrokerSegmentCountStatsMonitor extends AbstractMonitor +{ + private final BrokerSegmentCountStatsProvider statsProvider; + + @Inject + public BrokerSegmentCountStatsMonitor(BrokerSegmentCountStatsProvider statsProvider) + { + this.statsProvider = statsProvider; + } + + @Override + public boolean doMonitor(ServiceEmitter emitter) + { + emit(emitter, "segment/available/count", statsProvider.getAvailableSegmentCount()); + return true; + } + + private void emit(ServiceEmitter emitter, String key, Map<RowKey, Long> counts) Review Comment: Should we move this method to the `AbstractMonitor` class? Other monitor classes also seem to have a similar logic. -- This is an automated message from the Apache Git Service. To respond to the message, please log on to GitHub and use the URL above to go to the specific comment. To unsubscribe, e-mail: [email protected] For queries about this service, please contact Infrastructure at: [email protected] --------------------------------------------------------------------- To unsubscribe, e-mail: [email protected] For additional commands, e-mail: [email protected]
