| /** |
| * 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 |
| * <p/> |
| * http://www.apache.org/licenses/LICENSE-2.0 |
| * <p/> |
| * 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.storm.metric; |
| |
| import com.google.common.collect.ArrayListMultimap; |
| import com.google.common.collect.HashBasedTable; |
| import com.google.common.collect.Multimap; |
| import com.google.common.collect.Table; |
| import java.util.ArrayList; |
| import java.util.Collection; |
| import java.util.HashMap; |
| import java.util.Map; |
| import java.util.stream.Collectors; |
| import org.apache.storm.metric.api.IMetricsConsumer; |
| import org.apache.storm.task.IErrorReporter; |
| import org.apache.storm.task.TopologyContext; |
| |
| public class FakeMetricConsumer implements IMetricsConsumer { |
| |
| public static final Table<String, String, Multimap<Integer, Object>> BUFFER = HashBasedTable.create(); |
| |
| public static Map<Integer, Collection<Object>> getTaskIdToBuckets(String componentName, String metricName) { |
| synchronized (BUFFER) { |
| Multimap<Integer, Object> taskIdToBuckets = BUFFER.get(componentName, metricName); |
| if (taskIdToBuckets == null) { |
| return null; |
| } |
| return taskIdToBuckets.asMap().entrySet().stream() |
| .collect(Collectors.toMap(entry -> entry.getKey(), entry -> new ArrayList<>(entry.getValue()))); |
| } |
| } |
| |
| @Override |
| public void prepare(Map<String, Object> topoConf, Object registrationArgument, TopologyContext context, IErrorReporter errorReporter) { |
| synchronized (BUFFER) { |
| BUFFER.clear(); |
| } |
| } |
| |
| @Override |
| public void handleDataPoints(TaskInfo taskInfo, Collection<DataPoint> dataPoints) { |
| synchronized (BUFFER) { |
| for (DataPoint dp : dataPoints) { |
| for (Map.Entry<String, Object> entry : expandComplexDataPoint(dp).entrySet()) { |
| String metricName = entry.getKey(); |
| Multimap<Integer, Object> taskIdToBucket = BUFFER.get(taskInfo.srcComponentId, metricName); |
| if (null == taskIdToBucket) { |
| taskIdToBucket = ArrayListMultimap.create(); |
| taskIdToBucket.put(taskInfo.srcTaskId, entry.getValue()); |
| } else { |
| taskIdToBucket.get(taskInfo.srcTaskId).add(entry.getValue()); |
| } |
| BUFFER.put(taskInfo.srcComponentId, metricName, taskIdToBucket); |
| } |
| } |
| } |
| } |
| |
| @Override |
| public void cleanup() { |
| synchronized (BUFFER) { |
| BUFFER.clear(); |
| } |
| } |
| |
| private Map<String, Object> expandComplexDataPoint(DataPoint dp) { |
| Map<String, Object> expanded = new HashMap<>(); |
| if (dp.value instanceof Map) { |
| for (Map.Entry entry : ((Map<Object, Object>) dp.value).entrySet()) { |
| expanded.put(dp.name + "/" + entry.getKey(), entry.getValue()); |
| } |
| } else { |
| expanded.put(dp.name, dp.value); |
| } |
| return expanded; |
| } |
| } |