@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());
}
}
}
}
private ODataValue getODataValue(final Property resource) {
ODataValue value = null;
if (resource.getValue().isSimple()) {
value =
client
.getPrimitiveValueBuilder()
.setText(resource.getValue().asSimple().get())
.setType(
resource.getType() == null
? null
: EdmPrimitiveTypeKind.valueOfFQN(
client.getServiceVersion(), resource.getType()))
.build();
} else if (resource.getValue().isGeospatial()) {
value =
client
.getGeospatialValueBuilder()
.setValue(resource.getValue().asGeospatial().get())
.setType(
resource.getType() == null
|| EdmPrimitiveTypeKind.Geography.getFullQualifiedName()
.toString()
.equals(resource.getType())
|| EdmPrimitiveTypeKind.Geometry.getFullQualifiedName()
.toString()
.equals(resource.getType())
? null
: EdmPrimitiveTypeKind.valueOfFQN(
client.getServiceVersion(), resource.getType()))
.build();
} else if (resource.getValue().isComplex()) {
value = new ODataComplexValue(resource.getType());
for (Property property : resource.getValue().asComplex().get()) {
value.asComplex().add(getODataProperty(property));
}
} else if (resource.getValue().isCollection()) {
value = new ODataCollectionValue(resource.getType());
for (Value _value : resource.getValue().asCollection().get()) {
final JSONPropertyImpl fake = new JSONPropertyImpl();
fake.setValue(_value);
value.asCollection().add(getODataValue(fake));
}
}
return value;
}
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());
}
}
}
}