| /** |
| * 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.HashMap; |
| import java.util.Map; |
| |
| import org.apache.hadoop.yarn.server.applicationhistoryservice.metrics.loadsimulator.util.RandomMetricsProvider; |
| import org.apache.hadoop.yarn.server.applicationhistoryservice.metrics.loadsimulator.util.TimeStampProvider; |
| |
| /** |
| */ |
| public class HostMetricsGenerator { |
| |
| private Map<String, RandomMetricsProvider> metricDataProviders = new HashMap<String, RandomMetricsProvider>(); |
| private final TimeStampProvider tsp; |
| private final ApplicationInstance id; |
| |
| public HostMetricsGenerator(ApplicationInstance id, |
| TimeStampProvider timeStamps, |
| Map<String, RandomMetricsProvider> metricDataProviders) { |
| this.id = id; |
| this.tsp = timeStamps; |
| this.metricDataProviders = metricDataProviders; |
| } |
| |
| public AppMetrics createMetrics() { |
| long[] timestamps = tsp.timestampsForNextInterval(); |
| AppMetrics appMetrics = new AppMetrics(id, timestamps[0]); |
| |
| for (Map.Entry<String, RandomMetricsProvider> entry : metricDataProviders.entrySet()) { |
| String metricName = entry.getKey(); |
| RandomMetricsProvider metricData = entry.getValue(); |
| |
| Metric metric = appMetrics.createMetric(metricName); |
| for (long timestamp : timestamps) { |
| metric.putMetric(timestamp, String.valueOf(metricData.next())); |
| } |
| appMetrics.addMetric(metric); |
| } |
| |
| return appMetrics; |
| } |
| |
| } |