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

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/*
   Copyright (c) 2012 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.examples.greetings.server;


import com.linkedin.data.transform.DataProcessingException;
import com.linkedin.restli.common.ComplexResourceKey;
import com.linkedin.restli.common.HttpStatus;
import com.linkedin.restli.common.PatchRequest;
import com.linkedin.restli.examples.greetings.api.Message;
import com.linkedin.restli.examples.greetings.api.TwoPartKey;
import com.linkedin.restli.server.BatchCreateRequest;
import com.linkedin.restli.server.BatchCreateResult;
import com.linkedin.restli.server.BatchDeleteRequest;
import com.linkedin.restli.server.BatchPatchRequest;
import com.linkedin.restli.server.BatchResult;
import com.linkedin.restli.server.BatchUpdateRequest;
import com.linkedin.restli.server.BatchUpdateResult;
import com.linkedin.restli.server.CreateResponse;
import com.linkedin.restli.server.UpdateResponse;
import com.linkedin.restli.server.annotations.Finder;
import com.linkedin.restli.server.annotations.QueryParam;
import com.linkedin.restli.server.annotations.RestLiCollection;
import com.linkedin.restli.server.resources.ComplexKeyResourceTemplate;

import java.util.ArrayList;
import java.util.List;
import java.util.Set;


/**
 * Demonstrates a resource with a complex key.
 * @author jbetz
 *
 */
@RestLiCollection(
  name = "complexKeys",
  namespace = "com.linkedin.restli.examples.greetings.client",
  keyName="keys"
  )
public class ComplexKeysResource extends ComplexKeyResourceTemplate
{
  private static ComplexKeysDataProvider _dataProvider = new ComplexKeysDataProvider();

  @Override
  public Message get(final ComplexResourceKey complexKey)
  {
    TwoPartKey key = complexKey.getKey();
    return _dataProvider.get(complexKey);
  }

  @Override
  public CreateResponse create(final Message message)
  {
    ComplexResourceKey key = _dataProvider.create(message);
    return new CreateResponse(key);
  }

  @Override
  public BatchCreateResult, Message> batchCreate(final BatchCreateRequest, Message> entities)
  {
    List createResponses = new ArrayList(entities.getInput().size());

    for(Message message : entities.getInput())
    {
      ComplexResourceKey key = _dataProvider.create(message);
      CreateResponse createResponse = new CreateResponse(key);
      createResponses.add(createResponse);
    }

    return new BatchCreateResult, Message>(createResponses);
  }

  @Override
  public UpdateResponse update(final ComplexResourceKey key,
                               final PatchRequest patch)
  {
    try
    {
      _dataProvider.partialUpdate(key, patch);
    }
    catch(DataProcessingException e)
    {
      return new UpdateResponse(HttpStatus.S_400_BAD_REQUEST);
    }

    return new UpdateResponse(HttpStatus.S_204_NO_CONTENT);
  }

  @Finder("prefix")
  public List prefix(@QueryParam("prefix") String prefix)
  {
    return _dataProvider.findByPrefix(prefix);
  }

  @Override
  public BatchResult, Message> batchGet(
      final Set> ids)
  {
    return _dataProvider.batchGet(ids);
  }

  @Override
  public BatchUpdateResult, Message> batchUpdate(
      final BatchUpdateRequest, Message> entities)
  {
    return _dataProvider.batchUpdate(entities);
  }

  @Override
  public BatchUpdateResult, Message> batchUpdate(
      final BatchPatchRequest, Message> patches)
  {
    return _dataProvider.batchUpdate(patches);
  }

  @Override
  public BatchUpdateResult, Message> batchDelete(
      final BatchDeleteRequest, Message> ids)
  {
    return _dataProvider.batchDelete(ids);
  }
}