com.linkedin.restli.internal.client.IdEntityResponseDecoder Maven / Gradle / Ivy

Go to download
/*
   Copyright (c) 2015 LinkedIn Corp.

   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 com.linkedin.restli.internal.client;

import com.linkedin.data.DataMap;
import com.linkedin.data.template.RecordTemplate;
import com.linkedin.r2.message.rest.RestResponse;
import com.linkedin.restli.client.Response;
import com.linkedin.restli.client.RestLiDecodingException;

import com.linkedin.restli.common.IdEntityResponse;
import com.linkedin.restli.common.TypeSpec;
import com.linkedin.restli.common.CompoundKey;
import com.linkedin.restli.common.ComplexKeySpec;
import com.linkedin.restli.common.RestConstants;
import com.linkedin.restli.common.ProtocolVersion;
import com.linkedin.restli.internal.common.HeaderUtil;
import com.linkedin.restli.internal.common.ResponseUtils;

import java.lang.reflect.InvocationTargetException;
import java.util.Map;
import java.util.TreeMap;

/**
 * @author Boyang Chen
 */
public class IdEntityResponseDecoder extends RestResponseDecoder>
{
  private final TypeSpec _keyType;
  private final Map _keyParts;
  private final ComplexKeySpec _complexKeyType;
  private final Class _entityClass;

  public IdEntityResponseDecoder(TypeSpec keyType,
                                 Map keyParts,
                                 ComplexKeySpec complexKeyType,
                                 Class entityClass)
  {
    _keyType = keyType;
    _keyParts = keyParts;
    _complexKeyType = complexKeyType;
    _entityClass = entityClass;
  }

  @Override
  public Class getEntityClass()
  {
    return _entityClass;
  }

  @Override
  public Response> decodeResponse(RestResponse restResponse)
      throws RestLiDecodingException
  {
    final Response> rawResponse = super.decodeResponse(restResponse);

    final Map modifiableHeaders = new TreeMap(String.CASE_INSENSITIVE_ORDER);
    modifiableHeaders.putAll(rawResponse.getHeaders());

    modifiableHeaders.remove(RestConstants.HEADER_ID);
    modifiableHeaders.remove(RestConstants.HEADER_RESTLI_ID);

    return new ResponseImpl>(rawResponse.getStatus(), modifiableHeaders, rawResponse.getCookies(), rawResponse.getEntity(), rawResponse.getError());
  }

  @Override
  @SuppressWarnings("unchecked")
  public IdEntityResponse wrapResponse(DataMap dataMap, Map headers, ProtocolVersion version)
      throws NoSuchMethodException, InvocationTargetException, InstantiationException, IllegalAccessException
  {
    String id = HeaderUtil.getIdHeaderValue(headers);
    K key = id == null ? null : (K) ResponseUtils.convertKey(id, _keyType, _keyParts, _complexKeyType, version);
    V entity = dataMap == null ? null : _entityClass.getConstructor(DataMap.class).newInstance(dataMap);
    return new IdEntityResponse(key, entity);
  }
}