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/*
 * Licensed to Metamarkets Group Inc. (Metamarkets) under one
 * or more contributor license agreements. See the NOTICE file
 * distributed with this work for additional information
 * regarding copyright ownership. Metamarkets 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 io.druid.query.aggregation.histogram;

import com.fasterxml.jackson.databind.Module;
import com.fasterxml.jackson.databind.module.SimpleModule;
import com.google.common.collect.ImmutableList;
import com.google.inject.Binder;
import io.druid.initialization.DruidModule;
import io.druid.query.aggregation.histogram.sql.QuantileSqlAggregator;
import io.druid.segment.serde.ComplexMetrics;
import io.druid.sql.guice.SqlBindings;

import java.util.List;

/**
 */
public class ApproximateHistogramDruidModule implements DruidModule
{
  @Override
  public List getJacksonModules()
  {
    return ImmutableList.of(
        new SimpleModule().registerSubtypes(
            ApproximateHistogramFoldingAggregatorFactory.class,
            ApproximateHistogramAggregatorFactory.class,
            EqualBucketsPostAggregator.class,
            CustomBucketsPostAggregator.class,
            BucketsPostAggregator.class,
            QuantilesPostAggregator.class,
            QuantilePostAggregator.class,
            MinPostAggregator.class,
            MaxPostAggregator.class
        )
    );
  }

  @Override
  public void configure(Binder binder)
  {
    if (ComplexMetrics.getSerdeForType("approximateHistogram") == null) {
      ComplexMetrics.registerSerde("approximateHistogram", new ApproximateHistogramFoldingSerde());
    }

    if (binder != null) {
      // Binder is null in some tests.
      SqlBindings.addAggregator(binder, QuantileSqlAggregator.class);
    }
  }
}