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/*
 * 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 org.apache.druid.indexing.kafka;

import com.fasterxml.jackson.databind.Module;
import com.fasterxml.jackson.databind.jsontype.NamedType;
import com.fasterxml.jackson.databind.module.SimpleModule;
import com.google.common.collect.ImmutableList;
import com.google.inject.Binder;
import org.apache.druid.data.input.kafka.KafkaTopicPartition;
import org.apache.druid.data.input.kafkainput.KafkaInputFormat;
import org.apache.druid.indexing.kafka.supervisor.KafkaSupervisorSpec;
import org.apache.druid.indexing.kafka.supervisor.KafkaSupervisorTuningConfig;
import org.apache.druid.initialization.DruidModule;

import java.util.List;

public class KafkaIndexTaskModule implements DruidModule
{
  public static final String SCHEME = "kafka";
  
  @Override
  public List getJacksonModules()
  {
    return ImmutableList.of(
        new SimpleModule(getClass().getSimpleName())
            .registerSubtypes(
                new NamedType(KafkaIndexTask.class, "index_kafka"),
                new NamedType(KafkaDataSourceMetadata.class, SCHEME),
                new NamedType(KafkaIndexTaskIOConfig.class, SCHEME),
                // "KafkaTuningConfig" is not the ideal name, but is needed for backwards compatibility.
                // (Older versions of Druid didn't specify a type name and got this one by default.)
                new NamedType(KafkaIndexTaskTuningConfig.class, "KafkaTuningConfig"),
                new NamedType(KafkaSupervisorTuningConfig.class, SCHEME),
                new NamedType(KafkaSupervisorSpec.class, SCHEME),
                new NamedType(KafkaSamplerSpec.class, SCHEME),
                new NamedType(KafkaInputFormat.class, SCHEME)
            )
            .addKeySerializer(KafkaTopicPartition.class, new KafkaTopicPartition.KafkaTopicPartitionKeySerializer())
    );
  }

  @Override
  public void configure(Binder binder)
  {
    // Nothing to do.
  }
}