| /** |
| * 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.hadoop.yarn.server.applicationhistoryservice.metrics |
| .loadsimulator.data; |
| |
| import java.util.ArrayList; |
| import java.util.Collection; |
| |
| /** |
| * AppMetrics is a class that helps to create properly initialized metrics for |
| * current app. It also holds the |
| * metrics and can be serialized to json. |
| */ |
| public class AppMetrics { |
| |
| private final Collection<Metric> metrics = new ArrayList<Metric>(); |
| private final transient ApplicationInstance applicationId; |
| private final transient long startTime; |
| |
| public AppMetrics(ApplicationInstance applicationId, long startTime) { |
| this.applicationId = applicationId; |
| this.startTime = startTime; |
| } |
| |
| public Metric createMetric(String metricName) { |
| return new Metric(applicationId, metricName, startTime); |
| } |
| |
| public void addMetric(Metric metric) { |
| metrics.add(metric); |
| } |
| |
| } |