processing/src/main/java/org/apache/druid/jackson/DefaultObjectMapper.java

/*
 * 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.jackson;

import com.fasterxml.jackson.core.JsonFactory;
import com.fasterxml.jackson.databind.DeserializationFeature;
import com.fasterxml.jackson.databind.MapperFeature;
import com.fasterxml.jackson.databind.ObjectMapper;
import com.fasterxml.jackson.databind.SerializationFeature;
import com.fasterxml.jackson.datatype.guava.GuavaModule;

/**
 */
public class DefaultObjectMapper extends ObjectMapper
{
  public DefaultObjectMapper()
  {
    this((JsonFactory) null);
  }

  public DefaultObjectMapper(DefaultObjectMapper mapper)
  {
    super(mapper);
  }

  public DefaultObjectMapper(JsonFactory factory)
  {
    super(factory);
    registerModule(new DruidDefaultSerializersModule());
    registerModule(new GuavaModule());
    registerModule(new GranularityModule());
    registerModule(new AggregatorsModule());
    registerModule(new StringComparatorModule());
    registerModule(new SegmentizerModule());

    configure(DeserializationFeature.FAIL_ON_UNKNOWN_PROPERTIES, false);
    configure(MapperFeature.AUTO_DETECT_GETTERS, false);
    // See https://github.com/FasterXML/jackson-databind/issues/170
    // configure(MapperFeature.AUTO_DETECT_CREATORS, false);
    configure(MapperFeature.AUTO_DETECT_FIELDS, false);
    configure(MapperFeature.AUTO_DETECT_IS_GETTERS, false);
    configure(MapperFeature.AUTO_DETECT_SETTERS, false);
    configure(MapperFeature.ALLOW_FINAL_FIELDS_AS_MUTATORS, false);
    configure(SerializationFeature.INDENT_OUTPUT, false);
    configure(SerializationFeature.FLUSH_AFTER_WRITE_VALUE, false);
  }

  @Override
  public ObjectMapper copy()
  {
    return new DefaultObjectMapper(this);
  }
}