/*
* Copyright (c) 2015 Spotify AB.
*
* 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.spotify.heroic.aggregation.simple;
import com.spotify.heroic.aggregation.AggregationContext;
import com.spotify.heroic.aggregation.SamplingAggregation;
import com.spotify.heroic.aggregation.SamplingQuery;
import com.spotify.heroic.common.Duration;
import com.spotify.heroic.common.Optionals;
import lombok.Data;
import lombok.EqualsAndHashCode;
import java.beans.ConstructorProperties;
import java.util.Optional;
@Data
@EqualsAndHashCode(callSuper = true)
public class StdDev extends SamplingAggregation {
public static final String NAME = "stddev";
@ConstructorProperties({"sampling", "size", "extent"})
public StdDev(
Optional<SamplingQuery> sampling, Optional<Duration> size, Optional<Duration> extent
) {
super(Optionals.firstPresent(size, sampling.flatMap(SamplingQuery::getSize)),
Optionals.firstPresent(extent, sampling.flatMap(SamplingQuery::getExtent)));
}
@Override
public StdDevInstance apply(AggregationContext context, final long size, final long extent) {
return new StdDevInstance(size, extent);
}
}