Exemplo n.º 1
0
  @Override
  public void readEntity(
      final ODataRequest request,
      ODataResponse response,
      final UriInfo uriInfo,
      final ContentType requestedContentType)
      throws ODataApplicationException, SerializerException {
    // First we have to figure out which entity set the requested entity is in
    final EdmEntitySet edmEntitySet = getEdmEntitySet(uriInfo.asUriInfoResource());

    // Next we fetch the requested entity from the database
    Entity entity;
    try {
      entity = readEntityInternal(uriInfo.asUriInfoResource(), edmEntitySet);
    } catch (DataProviderException e) {
      throw new ODataApplicationException(e.getMessage(), 500, Locale.ENGLISH);
    }

    if (entity == null) {
      // If no entity was found for the given key we throw an exception.
      throw new ODataApplicationException(
          "No entity found for this key", HttpStatusCode.NOT_FOUND.getStatusCode(), Locale.ENGLISH);
    } else {
      // If an entity was found we proceed by serializing it and sending it to the client.
      ODataSerializer serializer = odata.createSerializer(requestedContentType);
      final ExpandOption expand = uriInfo.getExpandOption();
      final SelectOption select = uriInfo.getSelectOption();
      InputStream serializedContent =
          serializer
              .entity(
                  edm,
                  edmEntitySet.getEntityType(),
                  entity,
                  EntitySerializerOptions.with()
                      .contextURL(
                          isODataMetadataNone(requestedContentType)
                              ? null
                              : getContextUrl(edmEntitySet, true, expand, select, null))
                      .expand(expand)
                      .select(select)
                      .build())
              .getContent();
      response.setContent(serializedContent);
      response.setStatusCode(HttpStatusCode.OK.getStatusCode());
      response.setHeader(HttpHeader.CONTENT_TYPE, requestedContentType.toContentTypeString());
    }
  }
Exemplo n.º 2
0
 @Override
 public void readPrimitiveValue(
     ODataRequest request, ODataResponse response, UriInfo uriInfo, ContentType format)
     throws ODataApplicationException, SerializerException {
   // First we have to figure out which entity set the requested entity is in
   final EdmEntitySet edmEntitySet = getEdmEntitySet(uriInfo.asUriInfoResource());
   // Next we fetch the requested entity from the database
   final Entity entity;
   try {
     entity = readEntityInternal(uriInfo.asUriInfoResource(), edmEntitySet);
   } catch (DataProviderException e) {
     throw new ODataApplicationException(e.getMessage(), 500, Locale.ENGLISH);
   }
   if (entity == null) {
     // If no entity was found for the given key we throw an exception.
     throw new ODataApplicationException(
         "No entity found for this key", HttpStatusCode.NOT_FOUND.getStatusCode(), Locale.ENGLISH);
   } else {
     // Next we get the property value from the entity and pass the value to serialization
     UriResourceProperty uriProperty =
         (UriResourceProperty)
             uriInfo.getUriResourceParts().get(uriInfo.getUriResourceParts().size() - 1);
     EdmProperty edmProperty = uriProperty.getProperty();
     Property property = entity.getProperty(edmProperty.getName());
     if (property == null) {
       throw new ODataApplicationException(
           "No property found", HttpStatusCode.NOT_FOUND.getStatusCode(), Locale.ENGLISH);
     } else {
       if (property.getValue() == null) {
         response.setStatusCode(HttpStatusCode.NO_CONTENT.getStatusCode());
       } else {
         String value = String.valueOf(property.getValue());
         ByteArrayInputStream serializerContent =
             new ByteArrayInputStream(value.getBytes(Charset.forName("UTF-8")));
         response.setContent(serializerContent);
         response.setStatusCode(HttpStatusCode.OK.getStatusCode());
         response.setHeader(HttpHeader.CONTENT_TYPE, ContentType.TEXT_PLAIN.toContentTypeString());
       }
     }
   }
 }
Exemplo n.º 3
0
  private void readProperty(
      ODataResponse response, UriInfo uriInfo, ContentType contentType, boolean complex)
      throws ODataApplicationException, SerializerException {
    // To read a property we have to first get the entity out of the entity set
    final EdmEntitySet edmEntitySet = getEdmEntitySet(uriInfo.asUriInfoResource());
    Entity entity;
    try {
      entity = readEntityInternal(uriInfo.asUriInfoResource(), edmEntitySet);
    } catch (DataProviderException e) {
      throw new ODataApplicationException(
          e.getMessage(), HttpStatusCode.INTERNAL_SERVER_ERROR.getStatusCode(), Locale.ENGLISH);
    }

    if (entity == null) {
      // If no entity was found for the given key we throw an exception.
      throw new ODataApplicationException(
          "No entity found for this key", HttpStatusCode.NOT_FOUND.getStatusCode(), Locale.ENGLISH);
    } else {
      // Next we get the property value from the entity and pass the value to serialization
      UriResourceProperty uriProperty =
          (UriResourceProperty)
              uriInfo.getUriResourceParts().get(uriInfo.getUriResourceParts().size() - 1);
      EdmProperty edmProperty = uriProperty.getProperty();
      Property property = entity.getProperty(edmProperty.getName());
      if (property == null) {
        throw new ODataApplicationException(
            "No property found", HttpStatusCode.NOT_FOUND.getStatusCode(), Locale.ENGLISH);
      } else {
        if (property.getValue() == null) {
          response.setStatusCode(HttpStatusCode.NO_CONTENT.getStatusCode());
        } else {
          ODataSerializer serializer = odata.createSerializer(contentType);
          final ContextURL contextURL =
              isODataMetadataNone(contentType)
                  ? null
                  : getContextUrl(edmEntitySet, true, null, null, edmProperty.getName());
          InputStream serializerContent =
              complex
                  ? serializer
                      .complex(
                          edm,
                          (EdmComplexType) edmProperty.getType(),
                          property,
                          ComplexSerializerOptions.with().contextURL(contextURL).build())
                      .getContent()
                  : serializer
                      .primitive(
                          edm,
                          (EdmPrimitiveType) edmProperty.getType(),
                          property,
                          PrimitiveSerializerOptions.with()
                              .contextURL(contextURL)
                              .scale(edmProperty.getScale())
                              .nullable(edmProperty.isNullable())
                              .precision(edmProperty.getPrecision())
                              .maxLength(edmProperty.getMaxLength())
                              .unicode(edmProperty.isUnicode())
                              .build())
                      .getContent();
          response.setContent(serializerContent);
          response.setStatusCode(HttpStatusCode.OK.getStatusCode());
          response.setHeader(HttpHeader.CONTENT_TYPE, contentType.toContentTypeString());
        }
      }
    }
  }