/** * 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.hive.spark.counter; import java.io.Serializable; import java.util.HashMap; import java.util.Map; import org.apache.spark.api.java.JavaSparkContext; /** * We use group to fold all the same kind of counters. */ public class SparkCounterGroup implements Serializable { private static final long serialVersionUID = 1L; private String groupName; private String groupDisplayName; private Map<String, SparkCounter> sparkCounters; private transient JavaSparkContext javaSparkContext; private SparkCounterGroup() { // For serialization. } public SparkCounterGroup( String groupName, String groupDisplayName, JavaSparkContext javaSparkContext) { this.groupName = groupName; this.groupDisplayName = groupDisplayName; this.javaSparkContext = javaSparkContext; this.sparkCounters = new HashMap<String, SparkCounter>(); } public void createCounter(String name, long initValue) { SparkCounter counter = new SparkCounter(name, name, groupName, initValue, javaSparkContext); sparkCounters.put(name, counter); } public SparkCounter getCounter(String name) { return sparkCounters.get(name); } public String getGroupName() { return groupName; } public String getGroupDisplayName() { return groupDisplayName; } public void setGroupDisplayName(String groupDisplayName) { this.groupDisplayName = groupDisplayName; } public Map<String, SparkCounter> getSparkCounters() { return sparkCounters; } SparkCounterGroup snapshot() { SparkCounterGroup snapshot = new SparkCounterGroup(getGroupName(), getGroupDisplayName(), null); for (SparkCounter counter : sparkCounters.values()) { SparkCounter counterSnapshot = counter.snapshot(); snapshot.sparkCounters.put(counterSnapshot.getName(), counterSnapshot); } return snapshot; } }