io.druid.jackson.AggregatorsModule.java Source code

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Here is the source code for io.druid.jackson.AggregatorsModule.java

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/*
 * Druid - a distributed column store.
 * Copyright 2012 - 2015 Metamarkets Group 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 io.druid.jackson;

import com.fasterxml.jackson.annotation.JsonSubTypes;
import com.fasterxml.jackson.annotation.JsonTypeInfo;
import com.fasterxml.jackson.databind.module.SimpleModule;
import com.google.common.hash.Hashing;
import io.druid.query.aggregation.AggregatorFactory;
import io.druid.query.aggregation.CountAggregatorFactory;
import io.druid.query.aggregation.DoubleMaxAggregatorFactory;
import io.druid.query.aggregation.DoubleMinAggregatorFactory;
import io.druid.query.aggregation.MinAggregatorFactory;
import io.druid.query.aggregation.MaxAggregatorFactory;
import io.druid.query.aggregation.DoubleSumAggregatorFactory;
import io.druid.query.aggregation.FilteredAggregatorFactory;
import io.druid.query.aggregation.HistogramAggregatorFactory;
import io.druid.query.aggregation.JavaScriptAggregatorFactory;
import io.druid.query.aggregation.LongMaxAggregatorFactory;
import io.druid.query.aggregation.LongMinAggregatorFactory;
import io.druid.query.aggregation.LongSumAggregatorFactory;
import io.druid.query.aggregation.PostAggregator;
import io.druid.query.aggregation.cardinality.CardinalityAggregatorFactory;
import io.druid.query.aggregation.hyperloglog.HyperUniqueFinalizingPostAggregator;
import io.druid.query.aggregation.hyperloglog.HyperUniquesAggregatorFactory;
import io.druid.query.aggregation.hyperloglog.HyperUniquesSerde;
import io.druid.query.aggregation.post.ArithmeticPostAggregator;
import io.druid.query.aggregation.post.ConstantPostAggregator;
import io.druid.query.aggregation.post.FieldAccessPostAggregator;
import io.druid.query.aggregation.post.JavaScriptPostAggregator;
import io.druid.segment.serde.ComplexMetrics;

/**
 */
public class AggregatorsModule extends SimpleModule {
    public AggregatorsModule() {
        super("AggregatorFactories");

        if (ComplexMetrics.getSerdeForType("hyperUnique") == null) {
            ComplexMetrics.registerSerde("hyperUnique", new HyperUniquesSerde(Hashing.murmur3_128()));
        }

        setMixInAnnotation(AggregatorFactory.class, AggregatorFactoryMixin.class);
        setMixInAnnotation(PostAggregator.class, PostAggregatorMixin.class);
    }

    @JsonTypeInfo(use = JsonTypeInfo.Id.NAME, property = "type")
    @JsonSubTypes(value = { @JsonSubTypes.Type(name = "count", value = CountAggregatorFactory.class),
            @JsonSubTypes.Type(name = "longSum", value = LongSumAggregatorFactory.class),
            @JsonSubTypes.Type(name = "doubleSum", value = DoubleSumAggregatorFactory.class),
            @JsonSubTypes.Type(name = "doubleMax", value = DoubleMaxAggregatorFactory.class),
            @JsonSubTypes.Type(name = "doubleMin", value = DoubleMinAggregatorFactory.class),
            //Note: max/min are exactly same as doubleMax/doubleMin, max/min are still here only
            //to be backward compatible with 0.7.2 and before
            @JsonSubTypes.Type(name = "max", value = MaxAggregatorFactory.class),
            @JsonSubTypes.Type(name = "min", value = MinAggregatorFactory.class),
            @JsonSubTypes.Type(name = "longMax", value = LongMaxAggregatorFactory.class),
            @JsonSubTypes.Type(name = "longMin", value = LongMinAggregatorFactory.class),
            @JsonSubTypes.Type(name = "javascript", value = JavaScriptAggregatorFactory.class),
            @JsonSubTypes.Type(name = "histogram", value = HistogramAggregatorFactory.class),
            @JsonSubTypes.Type(name = "hyperUnique", value = HyperUniquesAggregatorFactory.class),
            @JsonSubTypes.Type(name = "cardinality", value = CardinalityAggregatorFactory.class),
            @JsonSubTypes.Type(name = "filtered", value = FilteredAggregatorFactory.class) })
    public static interface AggregatorFactoryMixin {
    }

    @JsonTypeInfo(use = JsonTypeInfo.Id.NAME, property = "type")
    @JsonSubTypes(value = { @JsonSubTypes.Type(name = "arithmetic", value = ArithmeticPostAggregator.class),
            @JsonSubTypes.Type(name = "fieldAccess", value = FieldAccessPostAggregator.class),
            @JsonSubTypes.Type(name = "constant", value = ConstantPostAggregator.class),
            @JsonSubTypes.Type(name = "javascript", value = JavaScriptPostAggregator.class),
            @JsonSubTypes.Type(name = "hyperUniqueCardinality", value = HyperUniqueFinalizingPostAggregator.class) })
    public static interface PostAggregatorMixin {
    }
}