| /** |
| * 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 com.datatorrent.stram.plan.logical; |
| |
| import java.io.Serializable; |
| import java.util.Collection; |
| import java.util.Map; |
| |
| import javax.validation.constraints.NotNull; |
| |
| import com.google.common.base.Preconditions; |
| |
| import com.datatorrent.api.AutoMetric; |
| |
| /** |
| * A class that encapsulates {@link AutoMetric.Aggregator} and {@link AutoMetric.DimensionsScheme} of a particular |
| * operator. |
| * |
| * @since 3.3.0 |
| */ |
| public final class MetricAggregatorMeta implements Serializable |
| { |
| private final AutoMetric.Aggregator aggregator; |
| private final AutoMetric.DimensionsScheme dimensionsScheme; |
| |
| protected MetricAggregatorMeta(AutoMetric.Aggregator aggregator, AutoMetric.DimensionsScheme dimensionsScheme) |
| { |
| this.aggregator = aggregator; |
| this.dimensionsScheme = dimensionsScheme; |
| } |
| |
| public AutoMetric.Aggregator getAggregator() |
| { |
| return this.aggregator; |
| } |
| |
| public String[] getDimensionAggregatorsFor(String logicalMetricName) |
| { |
| if (dimensionsScheme == null) { |
| return null; |
| } |
| return dimensionsScheme.getDimensionAggregationsFor(logicalMetricName); |
| } |
| |
| public String[] getTimeBuckets() |
| { |
| if (dimensionsScheme == null) { |
| return null; |
| } |
| return dimensionsScheme.getTimeBuckets(); |
| } |
| |
| private static final long serialVersionUID = 201604271719L; |
| |
| /** |
| * Serves as a proxy for Aggregator when operator itself implements {@link AutoMetric.Aggregator}. |
| */ |
| static final class MetricsAggregatorProxy implements AutoMetric.Aggregator, Serializable |
| { |
| private final LogicalPlan.OperatorMeta om; |
| |
| MetricsAggregatorProxy(@NotNull LogicalPlan.OperatorMeta om) |
| { |
| this.om = Preconditions.checkNotNull(om); |
| } |
| |
| @Override |
| public Map<String, Object> aggregate(long windowId, Collection<AutoMetric.PhysicalMetricsContext> physicalMetrics) |
| { |
| return ((AutoMetric.Aggregator)om.getOperator()).aggregate(windowId, physicalMetrics); |
| } |
| |
| private static final long serialVersionUID = 201512221830L; |
| } |
| } |