content: /*
   * The Alluxio Open Foundation licenses this work under the Apache License, version 2.0
   * (the "License"). You may not use this work except in compliance with the License, which is
   * available at www.apache.org/licenses/LICENSE-2.0
   *
   * This software is distributed on an "AS IS" basis, WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND,
   * either express or implied, as more fully set forth in the License.
   *
   * See the NOTICE file distributed with this work for information regarding copyright ownership.
   */
  
  package alluxio.web;
  
  import com.fasterxml.jackson.databind.ObjectMapper;
  import com.fasterxml.jackson.databind.PropertyNamingStrategy;
  import com.hubspot.jackson.datatype.protobuf.ProtobufModule;
  
  import javax.ws.rs.ext.ContextResolver;
  import javax.ws.rs.ext.Provider;
  
  /**
   * Custom context resolver for Jersey to handle JSON-to-Protobuf conversion.
   */
  @Provider
  public class JacksonProtobufObjectMapperProvider implements ContextResolver<ObjectMapper> {
    final ObjectMapper mDefaultObjectMapper;
  
    /**
     * Create {@link ObjectMapper} provider that handles protobuf.
     */
    public JacksonProtobufObjectMapperProvider() {
      mDefaultObjectMapper = createDefaultMapper();
    }
  
    private static ObjectMapper createDefaultMapper() {
      final ObjectMapper jackson = new ObjectMapper();
      jackson.setPropertyNamingStrategy(PropertyNamingStrategy.LOWER_CAMEL_CASE);
      jackson.registerModule(new ProtobufModule());
      return jackson;
    }
  
    @Override
    public ObjectMapper getContext(Class<?> type) {
      return mDefaultObjectMapper;
    }
  }
  