com.linkedin.restli.common.BatchCreateIdResponse Maven / Gradle / Ivy

Go to download

Show more of this group Show more artifacts with this name
Show all versions of restli-common Show documentation

Pegasus is a framework for building robust, scalable service architectures using dynamic discovery and simple asychronous type-checked REST + JSON APIs.

There is a newer version: 27.7.18

Show newest version

/*
   Copyright (c) 2014 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.common;


import com.linkedin.data.DataList;
import com.linkedin.data.DataMap;
import com.linkedin.data.collections.CheckedUtil;
import com.linkedin.data.schema.ArrayDataSchema;
import com.linkedin.data.schema.Name;
import com.linkedin.data.schema.RecordDataSchema;
import com.linkedin.data.template.RecordTemplate;
import com.linkedin.restli.internal.common.CreateIdStatusDecoder;

import java.lang.reflect.InvocationTargetException;
import java.util.ArrayList;
import java.util.Arrays;
import java.util.List;


/**
 * Response for Batch Create Requests that contain strongly typed keys as first-class citizens.
 *
 * @author Moira Tagle
 */
public class BatchCreateIdResponse extends RecordTemplate
{
  private final List> _collection;

  public BatchCreateIdResponse(DataMap map, CreateIdStatusDecoder entityDecoder)
      throws NoSuchMethodException, InstantiationException, IllegalAccessException, InvocationTargetException
  {
    super(map, generateSchema());
    _collection = createCollectionFromDecoder(entityDecoder);
  }

  public BatchCreateIdResponse(List> elements)
  {
    super(generateDataMap(elements), generateSchema());
    _collection = elements;
  }

  private static DataMap generateDataMap(List elements)
  {
    DataMap dataMap = new DataMap();
    DataList listElements = new DataList();
    for (RecordTemplate recordTemplate : elements)
    {
      CheckedUtil.addWithoutChecking(listElements, recordTemplate.data());
    }
    dataMap.put(CollectionResponse.ELEMENTS, listElements);

    return dataMap;
  }

  private static RecordDataSchema generateSchema()
  {
    StringBuilder errorMessageBuilder = new StringBuilder(10);
    ArrayDataSchema arraySchema = new ArrayDataSchema(new RecordDataSchema(new Name(CreateStatus.class.getSimpleName()), RecordDataSchema.RecordType.RECORD));
    RecordDataSchema.Field arrayField = new RecordDataSchema.Field(arraySchema);
    arrayField.setName(CollectionResponse.ELEMENTS, errorMessageBuilder);
    RecordDataSchema schema = new RecordDataSchema(new Name(BatchCreateIdResponse.class.getSimpleName()), RecordDataSchema.RecordType.RECORD);
    schema.setFields(Arrays.asList(arrayField), errorMessageBuilder);
    return schema;
  }

  private CreateIdStatus decodeValue(DataMap dataMap, CreateIdStatusDecoder decoder)
      throws NoSuchMethodException, InstantiationException, IllegalAccessException, InvocationTargetException
  {
    return decoder.makeValue(dataMap);
  }

  private List> createCollectionFromDecoder(CreateIdStatusDecoder decoder)
      throws NoSuchMethodException, InstantiationException, IllegalAccessException, InvocationTargetException
  {
    DataList elements = this.data().getDataList(CollectionResponse.ELEMENTS);
    List> collection = new ArrayList>(elements.size());
    for (Object obj : elements)
    {
      DataMap dataMap = (DataMap) obj;
      collection.add(decodeValue(dataMap, decoder));
    }
    return collection;
  }

  public List> getElements()
  {
    return _collection;
  }
}