| /* |
| * 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.samza.operators.impl; |
| |
| import org.apache.samza.metrics.Gauge; |
| import org.apache.samza.metrics.MetricsBase; |
| import org.apache.samza.metrics.MetricsRegistry; |
| import org.apache.samza.system.SystemStreamPartition; |
| |
| import java.util.Map; |
| import java.util.concurrent.ConcurrentHashMap; |
| |
| class WatermarkMetrics extends MetricsBase { |
| private final Map<SystemStreamPartition, Gauge<Long>> aggregates = new ConcurrentHashMap<>(); |
| |
| WatermarkMetrics(MetricsRegistry registry) { |
| super("watermark-", registry); |
| } |
| |
| void setAggregateTime(SystemStreamPartition systemStreamPartition, long time) { |
| final Gauge<Long> aggregate = aggregates.computeIfAbsent(systemStreamPartition, |
| ssp -> newGauge(String.format("%s-%s-aggr-watermark", |
| ssp.getStream(), ssp.getPartition().getPartitionId()), 0L)); |
| aggregate.set(time); |
| } |
| } |