private UpdateResponse performDeepInsert(
String rawURI,
UriInfo uriInfo,
EdmEntityType entityType,
Entity entity,
List<ExpandNode> expandNodes)
throws SQLException, TeiidException {
UpdateResponse response = performInsert(rawURI, uriInfo, entityType, entity);
for (String navigationName : entityType.getNavigationPropertyNames()) {
EdmNavigationProperty navProperty = entityType.getNavigationProperty(navigationName);
Link navLink = entity.getNavigationLink(navigationName);
if (navLink != null && navLink.getInlineEntity() != null) {
ExpandNode node = new ExpandNode();
node.navigationProperty = navProperty;
expandNodes.add(node);
performDeepInsert(
rawURI, uriInfo, navProperty.getType(), navLink.getInlineEntity(), node.children);
} else if (navLink != null
&& navLink.getInlineEntitySet() != null
&& !navLink.getInlineEntitySet().getEntities().isEmpty()) {
ExpandNode node = new ExpandNode();
node.navigationProperty = navProperty;
expandNodes.add(node);
for (Entity inlineEntity : navLink.getInlineEntitySet().getEntities()) {
performDeepInsert(rawURI, uriInfo, navProperty.getType(), inlineEntity, node.children);
}
}
}
return response;
}
public static void applySearchSystemQueryOption(
final SearchOption searchOption, EntityCollection entitySet)
throws ODataApplicationException {
if (searchOption != null) {
SearchExpression se = searchOption.getSearchExpression();
Iterator<Entity> it = entitySet.getEntities().iterator();
while (it.hasNext()) {
boolean keep = false;
Entity entity = it.next();
ListIterator<Property> properties = entity.getProperties().listIterator();
while (properties.hasNext() && !keep) {
keep = isTrue(se, properties.next());
}
if (!keep) {
it.remove();
}
}
}
}
public static boolean entityMatchesAllKeys(
EdmEntityType edmEntityType, Entity rt_entity, List<UriParameter> keyParams) {
// loop over all keys
for (final UriParameter key : keyParams) {
// key
String keyName = key.getName();
String keyText = key.getText();
// note: below line doesn't consider: keyProp can be part of a complexType in V4
// in such case, it would be required to access it via getKeyPropertyRef()
// but since this isn't the case in our model, we ignore it in our implementation
EdmProperty edmKeyProperty = (EdmProperty) edmEntityType.getProperty(keyName);
// Edm: we need this info for the comparison below
Boolean isNullable = edmKeyProperty.isNullable();
Integer maxLength = edmKeyProperty.getMaxLength();
Integer precision = edmKeyProperty.getPrecision();
Boolean isUnicode = edmKeyProperty.isUnicode();
Integer scale = edmKeyProperty.getScale();
// get the EdmType in order to compare
EdmType edmType = edmKeyProperty.getType();
// if(EdmType instanceof EdmPrimitiveType) // do we need this?
EdmPrimitiveType edmPrimitiveType = (EdmPrimitiveType) edmType;
// Runtime data: the value of the current entity
// don't need to check for null, this is done in FWK
Object valueObject = rt_entity.getProperty(keyName).getValue();
// TODO if the property is a complex type
// now need to compare the valueObject with the keyText String
// this is done using the type.valueToString
String valueAsString = null;
try {
valueAsString =
edmPrimitiveType.valueToString(
valueObject, isNullable, maxLength, precision, scale, isUnicode);
} catch (EdmPrimitiveTypeException e) {
return false; // TODO proper Exception handling
}
if (valueAsString == null) {
return false;
}
boolean matches = valueAsString.equals(keyText);
// if any of the key properties is not found in the entity, we don't need to search further
if (!matches) {
return false;
}
// if the given key value is found in the current entity, continue with the next key
}
return true;
}
@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 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());
}
}
}
}
@Override
public void createEntity(DataRequest request, Entity entity, EntityResponse response)
throws ODataLibraryException, ODataApplicationException {
EdmEntityType entityType = request.getEntitySet().getEntityType();
String txn;
try {
txn = getClient().startTransaction();
} catch (SQLException e) {
throw new ODataApplicationException(
e.getMessage(),
HttpStatusCode.INTERNAL_SERVER_ERROR.getStatusCode(),
Locale.getDefault(),
e);
}
boolean success = false;
try {
List<ExpandNode> expands = new ArrayList<TeiidServiceHandler.ExpandNode>();
UpdateResponse updateResponse =
performDeepInsert(
request.getODataRequest().getRawBaseUri(),
request.getUriInfo(),
entityType,
entity,
expands);
if (updateResponse != null && updateResponse.getUpdateCount() == 1) {
ODataSQLBuilder visitor =
new ODataSQLBuilder(
this.odata,
getClient().getMetadataStore(),
true,
false,
request.getODataRequest().getRawBaseUri(),
this.serviceMetadata,
this.nameGenerator);
Query query =
visitor.selectWithEntityKey(
entityType, entity, updateResponse.getGeneratedKeys(), expands);
LogManager.logDetail(
LogConstants.CTX_ODATA,
null,
"created entity = ",
entityType.getName(),
" with key=",
query.getCriteria().toString()); // $NON-NLS-1$ //$NON-NLS-2$
EntityCollectionResponse result =
new EntityCollectionResponse(
request.getODataRequest().getRawBaseUri(), visitor.getContext());
getClient().executeSQL(query, visitor.getParameters(), false, null, null, null, 1, result);
if (!result.getEntities().isEmpty()) {
entity = result.getEntities().get(0);
String location =
EntityResponse.buildLocation(
request.getODataRequest().getRawBaseUri(),
entity,
request.getEntitySet().getName(),
entityType);
entity.setId(new URI(location));
}
response.writeCreatedEntity(request.getEntitySet(), entity);
} else {
response.writeNotModified();
}
getClient().commit(txn);
success = true;
} catch (SQLException e) {
throw new ODataApplicationException(
e.getMessage(),
HttpStatusCode.INTERNAL_SERVER_ERROR.getStatusCode(),
Locale.getDefault(),
e);
} catch (URISyntaxException e) {
throw new ODataApplicationException(
e.getMessage(),
HttpStatusCode.INTERNAL_SERVER_ERROR.getStatusCode(),
Locale.getDefault(),
e);
} catch (TeiidException e) {
throw new ODataApplicationException(
e.getMessage(),
HttpStatusCode.INTERNAL_SERVER_ERROR.getStatusCode(),
Locale.getDefault(),
e);
} catch (EdmPrimitiveTypeException e) {
throw new ODataApplicationException(
e.getMessage(),
HttpStatusCode.INTERNAL_SERVER_ERROR.getStatusCode(),
Locale.getDefault(),
e);
} finally {
if (!success) {
try {
getClient().rollback(txn);
} catch (SQLException e1) {
// ignore
}
}
}
}
