Java EntityProvider.writePropertyValue方法代码示例

import org.apache.olingo.odata2.api.ep.EntityProvider; //导入方法依赖的package包/类
@Override
public ODataResponse readEntitySimplePropertyValue(final GetSimplePropertyUriInfo uriInfo, final String contentType)
    throws ODataException {
  final List<EdmProperty> propertyPath = uriInfo.getPropertyPath();
  final EdmProperty property = propertyPath.get(propertyPath.size() - 1);

  final String mappedKeyName =
      (String) uriInfo.getTargetEntitySet().getEntityType().getKeyProperties().get(0).getMapping().getObject();
  final String keyValue = uriInfo.getKeyPredicates().get(0).getLiteral();

  final int index = indexOf(mappedKeyName, keyValue);
  if ((index < 0) || (index > records.size())) {
    throw new ODataNotFoundException(ODataNotFoundException.ENTITY.addContent(keyValue));
  }
  final HashMap<String, String> record = records.get(index);

  final String mappedPropertyName = (String) property.getMapping().getObject();
  final Object value = record.get(mappedPropertyName);

  final ODataResponse response = EntityProvider.writePropertyValue(property, value);
  return response;
}
 

import org.apache.olingo.odata2.api.ep.EntityProvider; //导入方法依赖的package包/类
@Override
public ODataResponse readEntitySimplePropertyValue(GetSimplePropertyUriInfo uri_info, String content_type)
      throws ODataException
{
   try
   {
      Object value = readPropertyValue(uri_info);
      EdmProperty target = uri_info.getPropertyPath().get(uri_info.getPropertyPath().size() - 1);

      if (target.getName().equals("Metalink")) // Metalink/$value
      {
         return ODataResponse
               .fromResponse(
                     EntityProvider.writeBinary(MetalinkBuilder.CONTENT_TYPE,
                     value.toString().getBytes("UTF-8")))
               .header("Content-Disposition",
                     "inline; filename=product" + MetalinkBuilder.FILE_EXTENSION)
               .build();
      }
      else
      {
         return EntityProvider.writePropertyValue(target, value);
      }
   }
   catch (UnsupportedEncodingException e)
   {
      throw new ExpectedException(e.getMessage());
   }
}
 

import org.apache.olingo.odata2.api.ep.EntityProvider; //导入方法依赖的package包/类
private ODataResponse writeContent(Edm edm, UriInfoWithType uriInfo, Object content)
    throws ODataApplicationException, EdmException, EntityProviderException, URISyntaxException, IOException {

    String responseContentType = getContentType();
    ODataResponse response;

    switch (uriInfo.getUriType()) {
    case URI4:
    case URI5:
        // simple property
        final List<EdmProperty> simplePropertyPath = uriInfo.getPropertyPath();
        final EdmProperty simpleProperty = simplePropertyPath.get(simplePropertyPath.size() - 1);
        responseContentType = simpleProperty.getMimeType();
        if (uriInfo.isValue()) {
            response = EntityProvider.writePropertyValue(simpleProperty, content);
            responseContentType = TEXT_PLAIN_WITH_CS_UTF_8.toString();
        } else {
            response = EntityProvider.writeProperty(getContentType(), simpleProperty, content);
        }
        break;

    case URI3:
        // complex property
        final List<EdmProperty> complexPropertyPath = uriInfo.getPropertyPath();
        final EdmProperty complexProperty = complexPropertyPath.get(complexPropertyPath.size() - 1);
        response = EntityProvider.writeProperty(responseContentType, complexProperty, content);
        break;

    case URI7A:
        // $links with 0..1 cardinality property
        final EdmEntitySet targetLinkEntitySet = uriInfo.getTargetEntitySet();
        EntityProviderWriteProperties linkProperties =
            EntityProviderWriteProperties.serviceRoot(new URI(serviceUri + SEPARATOR)).build();
        @SuppressWarnings("unchecked")
        final Map<String, Object> linkMap = (Map<String, Object>) content;
        response = EntityProvider.writeLink(responseContentType, targetLinkEntitySet, linkMap, linkProperties);
        break;

    case URI7B:
        // $links with * cardinality property
        final EdmEntitySet targetLinksEntitySet = uriInfo.getTargetEntitySet();
        EntityProviderWriteProperties linksProperties =
            EntityProviderWriteProperties.serviceRoot(new URI(serviceUri + SEPARATOR)).build();
        @SuppressWarnings("unchecked")
        final List<Map<String, Object>> linksMap = (List<Map<String, Object>>) content;
        response = EntityProvider.writeLinks(responseContentType, targetLinksEntitySet, linksMap, linksProperties);
        break;

    case URI1:
    case URI2:
    case URI6A:
    case URI6B:
        // Entity
        final EdmEntitySet targetEntitySet = uriInfo.getTargetEntitySet();
        EntityProviderWriteProperties properties =
            EntityProviderWriteProperties.serviceRoot(new URI(serviceUri + SEPARATOR)).build();
        @SuppressWarnings("unchecked")
        final Map<String, Object> objectMap = (Map<String, Object>) content;
        response = EntityProvider.writeEntry(responseContentType, targetEntitySet, objectMap, properties);
        break;

    case URI9:
        // $batch
        @SuppressWarnings("unchecked")
        final List<Olingo2BatchRequest> batchParts = (List<Olingo2BatchRequest>) content;
        response = parseBatchRequest(edm, batchParts);
        break;

    default:
        // notify exception and return!!!
        throw new ODataApplicationException("Unsupported resource type " + uriInfo.getTargetType(),
            Locale.ENGLISH);
    }

    return response.getContentHeader() != null ? response
        : ODataResponse.fromResponse(response).contentHeader(responseContentType).build();
}