ODataJPAProcessorDefault.java

/*******************************************************************************
 * Copyright 2013 SAP AG
 * 
 * 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.sap.core.odata.processor.core.jpa;

import java.io.InputStream;
import java.util.List;

import com.sap.core.odata.api.exception.ODataException;
import com.sap.core.odata.api.processor.ODataResponse;
import com.sap.core.odata.api.uri.info.DeleteUriInfo;
import com.sap.core.odata.api.uri.info.GetEntityCountUriInfo;
import com.sap.core.odata.api.uri.info.GetEntityLinkUriInfo;
import com.sap.core.odata.api.uri.info.GetEntitySetCountUriInfo;
import com.sap.core.odata.api.uri.info.GetEntitySetLinksUriInfo;
import com.sap.core.odata.api.uri.info.GetEntitySetUriInfo;
import com.sap.core.odata.api.uri.info.GetEntityUriInfo;
import com.sap.core.odata.api.uri.info.GetFunctionImportUriInfo;
import com.sap.core.odata.api.uri.info.PostUriInfo;
import com.sap.core.odata.api.uri.info.PutMergePatchUriInfo;
import com.sap.core.odata.processor.api.jpa.ODataJPAContext;
import com.sap.core.odata.processor.api.jpa.ODataJPAProcessor;
import com.sap.core.odata.processor.api.jpa.exception.ODataJPAException;

public class ODataJPAProcessorDefault extends ODataJPAProcessor {

  public ODataJPAProcessorDefault(final ODataJPAContext oDataJPAContext) {
    super(oDataJPAContext);
    if (oDataJPAContext == null) {
      throw new IllegalArgumentException(
          ODataJPAException.ODATA_JPACTX_NULL);
    }
  }

  @Override
  public ODataResponse readEntitySet(final GetEntitySetUriInfo uriParserResultView,
      final String contentType) throws ODataException {

    List<?> jpaEntities = jpaProcessor.process(uriParserResultView);

    ODataResponse oDataResponse = ODataJPAResponseBuilder.build(
        jpaEntities, uriParserResultView, contentType, oDataJPAContext);

    return oDataResponse;
  }

  @Override
  public ODataResponse readEntity(final GetEntityUriInfo uriParserResultView,
      final String contentType) throws ODataException {

    Object jpaEntity = jpaProcessor.process(uriParserResultView);

    ODataResponse oDataResponse = ODataJPAResponseBuilder.build(jpaEntity,
        uriParserResultView, contentType, oDataJPAContext);

    return oDataResponse;
  }

  @Override
  public ODataResponse countEntitySet(final GetEntitySetCountUriInfo uriParserResultView,
      final String contentType) throws ODataException {

    long jpaEntityCount = jpaProcessor.process(uriParserResultView);

    ODataResponse oDataResponse = ODataJPAResponseBuilder.build(
        jpaEntityCount, oDataJPAContext);

    return oDataResponse;
  }

  @Override
  public ODataResponse existsEntity(final GetEntityCountUriInfo uriInfo,
      final String contentType) throws ODataException {

    long jpaEntityCount = jpaProcessor.process(uriInfo);

    ODataResponse oDataResponse = ODataJPAResponseBuilder.build(
        jpaEntityCount, oDataJPAContext);

    return oDataResponse;
  }

  @Override
  public ODataResponse createEntity(final PostUriInfo uriParserResultView, final InputStream content,
      final String requestContentType, final String contentType)
      throws ODataException {

    List<Object> createdJpaEntityList = jpaProcessor.process(uriParserResultView, content,
        requestContentType);

    ODataResponse oDataResponse = ODataJPAResponseBuilder.build(createdJpaEntityList,
        uriParserResultView, contentType, oDataJPAContext);

    return oDataResponse;
  }

  @Override
  public ODataResponse updateEntity(final PutMergePatchUriInfo uriParserResultView,
      final InputStream content, final String requestContentType, final boolean merge,
      final String contentType) throws ODataException {

    Object jpaEntity = jpaProcessor.process(uriParserResultView, content,
        requestContentType);

    ODataResponse oDataResponse = ODataJPAResponseBuilder.build(jpaEntity,
        uriParserResultView);

    return oDataResponse;
  }

  @Override
  public ODataResponse deleteEntity(final DeleteUriInfo uriParserResultView,
      final String contentType) throws ODataException {

    Object deletedObj = jpaProcessor.process(uriParserResultView,
        contentType);

    ODataResponse oDataResponse = ODataJPAResponseBuilder.build(deletedObj,
        uriParserResultView);
    return oDataResponse;
  }

  @Override
  public ODataResponse executeFunctionImport(
      final GetFunctionImportUriInfo uriParserResultView,
      final String contentType) throws ODataException {

    List<Object> resultEntity = jpaProcessor
        .process(uriParserResultView);

    ODataResponse oDataResponse = ODataJPAResponseBuilder.build(
        resultEntity, uriParserResultView, contentType,
        oDataJPAContext);

    return oDataResponse;
  }

  @Override
  public ODataResponse executeFunctionImportValue(
      final GetFunctionImportUriInfo uriParserResultView,
      final String contentType) throws ODataException {

    List<Object> result = jpaProcessor.process(uriParserResultView);

    ODataResponse oDataResponse = ODataJPAResponseBuilder.build(result,
        uriParserResultView, contentType, oDataJPAContext);

    return oDataResponse;
  }

  @Override
  public ODataResponse readEntityLink(
      final GetEntityLinkUriInfo uriParserResultView,
      final String contentType) throws ODataException {

    Object jpaEntity = jpaProcessor.process(uriParserResultView);

    ODataResponse oDataResponse = ODataJPAResponseBuilder.build(jpaEntity,
        uriParserResultView, contentType, oDataJPAContext);

    return oDataResponse;
  }

  @Override
  public ODataResponse readEntityLinks(
      final GetEntitySetLinksUriInfo uriParserResultView,
      final String contentType) throws ODataException {

    List<Object> jpaEntity = jpaProcessor.process(uriParserResultView);

    ODataResponse oDataResponse = ODataJPAResponseBuilder.build(jpaEntity,
        uriParserResultView, contentType, oDataJPAContext);

    return oDataResponse;
  }

  @Override
  public ODataResponse createEntityLink(
      final PostUriInfo uriParserResultView, final InputStream content,
      final String requestContentType, final String contentType) throws ODataException {

    jpaProcessor.process(uriParserResultView, content, requestContentType, contentType);

    return ODataResponse.newBuilder().build();
  }

  @Override
  public ODataResponse updateEntityLink(final PutMergePatchUriInfo uriParserResultView,
      final InputStream content, final String requestContentType, final String contentType)
      throws ODataException {

    jpaProcessor.process(uriParserResultView, content, requestContentType, contentType);

    return ODataResponse.newBuilder().build();
  }

}