Java tutorial
/** * 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.pulsar.common.policies.data; import static com.google.common.base.Preconditions.checkNotNull; import java.util.List; import java.util.Map; import com.google.common.collect.Lists; import com.google.common.collect.Maps; /** */ public class NonPersistentTopicStats extends TopicStats { /** * for non-persistent topic: broker drops msg if publisher publishes messages more than configured max inflight * messages per connection **/ public double msgDropRate; /** List of connected publishers on this topic w/ their stats */ public List<NonPersistentPublisherStats> publishers; /** Map of subscriptions with their individual statistics */ public Map<String, NonPersistentSubscriptionStats> subscriptions; /** Map of replication statistics by remote cluster context */ public Map<String, NonPersistentReplicatorStats> replication; public NonPersistentTopicStats() { this.publishers = Lists.newArrayList(); this.subscriptions = Maps.newHashMap(); this.replication = Maps.newTreeMap(); } public void reset() { super.reset(); this.msgDropRate = 0; } // if the stats are added for the 1st time, we will need to make a copy of these stats and add it to the current // stats public NonPersistentTopicStats add(NonPersistentTopicStats stats) { checkNotNull(stats); super.add(stats); this.msgDropRate += stats.msgDropRate; return this; } public List<NonPersistentPublisherStats> getPublishers() { return this.publishers; } public Map<String, NonPersistentSubscriptionStats> getSubscriptions() { return this.subscriptions; } public Map<String, NonPersistentReplicatorStats> getReplication() { return this.replication; } }