com.google.cloud.dataflow.sdk.util.MapAggregatorValues Maven / Gradle / Ivy
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Google Cloud Dataflow Java SDK provides a simple, Java-based
interface for processing virtually any size data using Google cloud
resources. This artifact includes entire Dataflow Java SDK.
/*
* Copyright (C) 2015 Google Inc.
*
* Licensed 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.google.cloud.dataflow.sdk.util;
import com.google.cloud.dataflow.sdk.runners.AggregatorValues;
import com.google.cloud.dataflow.sdk.transforms.Aggregator;
import com.google.common.base.MoreObjects;
import java.util.Map;
/**
* An {@link AggregatorValues} implementation that is backed by an in-memory map.
*
* @param the output type of the {@link Aggregator}
*/
public class MapAggregatorValues extends AggregatorValues {
private final Map stepValues;
public MapAggregatorValues(Map stepValues) {
this.stepValues = stepValues;
}
@Override
public Map getValuesAtSteps() {
return stepValues;
}
@Override
public String toString() {
return MoreObjects.toStringHelper(MapAggregatorValues.class)
.add("stepValues", stepValues)
.toString();
}
}