| /* |
| * 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.query; |
| |
| 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 java.util.ArrayList; |
| import java.util.List; |
| |
| public class ExecutorServiceMonitor extends AbstractMonitor |
| { |
| |
| private final List<MetricEmitter> metricEmitters; |
| private final ServiceMetricEvent.Builder metricBuilder; |
| |
| @Inject |
| public ExecutorServiceMonitor() |
| { |
| this.metricEmitters = new ArrayList<>(); |
| this.metricBuilder = new ServiceMetricEvent.Builder(); |
| } |
| |
| public void add(MetricEmitter metricEmitter) |
| { |
| metricEmitters.add(metricEmitter); |
| } |
| |
| @Override |
| public boolean doMonitor(ServiceEmitter emitter) |
| { |
| for (MetricEmitter metricEmitter : metricEmitters) { |
| metricEmitter.emitMetrics(emitter, metricBuilder); |
| } |
| return true; |
| } |
| |
| public interface MetricEmitter |
| { |
| void emitMetrics(ServiceEmitter emitter, ServiceMetricEvent.Builder metricBuilder); |
| } |
| } |