use of org.qi4j.api.property.PropertyDescriptor in project qi4j-sdk by Qi4j.
the class ValueDescriptorResponseWriter method writeResponse.
@Override
public boolean writeResponse(final Object result, final Response response) throws ResourceException {
if (result instanceof ValueDescriptor) {
MediaType type = getVariant(response.getRequest(), ENGLISH, supportedMediaTypes).getMediaType();
if (MediaType.APPLICATION_JSON.equals(type)) {
JSONObject json = new JSONObject();
ValueDescriptor vd = (ValueDescriptor) result;
try {
for (PropertyDescriptor propertyDescriptor : vd.state().properties()) {
Object o = propertyDescriptor.initialValue(module);
if (o == null) {
json.put(propertyDescriptor.qualifiedName().name(), JSONObject.NULL);
} else {
json.put(propertyDescriptor.qualifiedName().name(), o.toString());
}
}
} catch (JSONException e) {
throw new ResourceException(e);
}
StringRepresentation representation = new StringRepresentation(json.toString(), MediaType.APPLICATION_JSON);
response.setEntity(representation);
return true;
} else if (MediaType.TEXT_HTML.equals(type)) {
Representation rep = new WriterRepresentation(MediaType.TEXT_HTML) {
@Override
public void write(Writer writer) throws IOException {
Map<String, Object> context = new HashMap<String, Object>();
context.put("request", response.getRequest());
context.put("response", response);
context.put("result", result);
try {
cfg.getTemplate("form.htm").process(context, writer);
} catch (TemplateException e) {
throw new IOException(e);
}
}
};
response.setEntity(rep);
return true;
}
}
return false;
}
use of org.qi4j.api.property.PropertyDescriptor in project qi4j-sdk by Qi4j.
the class EntityResource method post.
@Override
public Representation post(Representation entityRepresentation, Variant variant) throws ResourceException {
Usecase usecase = UsecaseBuilder.newUsecase("Update entity");
EntityStoreUnitOfWork unitOfWork = entityStore.newUnitOfWork(usecase, module, System.currentTimeMillis());
EntityState entity = getEntityState(unitOfWork);
Form form = new Form(entityRepresentation);
try {
final EntityDescriptor descriptor = entity.entityDescriptor();
// Parse JSON into properties
for (PropertyDescriptor persistentProperty : descriptor.state().properties()) {
if (!persistentProperty.isImmutable()) {
String formValue = form.getFirstValue(persistentProperty.qualifiedName().name(), null);
if (formValue == null) {
entity.setPropertyValue(persistentProperty.qualifiedName(), null);
} else {
entity.setPropertyValue(persistentProperty.qualifiedName(), valueSerialization.deserialize(persistentProperty.valueType(), formValue));
}
}
}
for (AssociationDescriptor associationType : descriptor.state().associations()) {
String newStringAssociation = form.getFirstValue(associationType.qualifiedName().name());
if (newStringAssociation == null || newStringAssociation.isEmpty()) {
entity.setAssociationValue(associationType.qualifiedName(), null);
} else {
entity.setAssociationValue(associationType.qualifiedName(), EntityReference.parseEntityReference(newStringAssociation));
}
}
for (AssociationDescriptor associationType : descriptor.state().manyAssociations()) {
String newStringAssociation = form.getFirstValue(associationType.qualifiedName().name());
ManyAssociationState manyAssociation = entity.manyAssociationValueOf(associationType.qualifiedName());
if (newStringAssociation == null) {
// Remove "left-overs"
for (EntityReference entityReference : manyAssociation) {
manyAssociation.remove(entityReference);
}
continue;
}
BufferedReader bufferedReader = new BufferedReader(new StringReader(newStringAssociation));
String identity;
try {
// Synchronize old and new association
int index = 0;
while ((identity = bufferedReader.readLine()) != null) {
EntityReference reference = new EntityReference(identity);
if (manyAssociation.count() < index && manyAssociation.get(index).equals(reference)) {
continue;
}
try {
unitOfWork.entityStateOf(reference);
manyAssociation.remove(reference);
manyAssociation.add(index++, reference);
} catch (EntityNotFoundException e) {
// Ignore this entity - doesn't exist
}
}
// Remove "left-overs"
while (manyAssociation.count() > index) {
manyAssociation.remove(manyAssociation.get(index));
}
} catch (IOException e) {
// Ignore
}
}
for (AssociationDescriptor associationType : descriptor.state().namedAssociations()) {
String newStringAssociation = form.getFirstValue(associationType.qualifiedName().name());
NamedAssociationState namedAssociation = entity.namedAssociationValueOf(associationType.qualifiedName());
if (newStringAssociation == null) {
// Remove "left-overs"
for (String name : namedAssociation) {
namedAssociation.remove(name);
}
continue;
}
Set<String> names = new HashSet<>();
BufferedReader bufferedReader = new BufferedReader(new StringReader(newStringAssociation));
String line;
try {
while ((line = bufferedReader.readLine()) != null) {
String name = line;
line = bufferedReader.readLine();
if (line == null) {
break;
}
String identity = line;
EntityReference reference = new EntityReference(identity);
try {
unitOfWork.entityStateOf(reference);
namedAssociation.remove(name);
namedAssociation.put(name, reference);
names.add(name);
} catch (EntityNotFoundException e) {
// Ignore this entity - doesn't exist
}
}
// Remove "left-overs"
for (String assocName : Iterables.toList(namedAssociation)) {
if (!names.contains(assocName)) {
namedAssociation.remove(assocName);
}
}
} catch (IOException e) {
// Ignore
}
}
} catch (ValueSerializationException | IllegalArgumentException e) {
throw new ResourceException(Status.SERVER_ERROR_INTERNAL, e);
}
try {
unitOfWork.applyChanges().commit();
} catch (ConcurrentEntityStateModificationException e) {
throw new ResourceException(Status.CLIENT_ERROR_CONFLICT);
} catch (EntityNotFoundException e) {
throw new ResourceException(Status.CLIENT_ERROR_GONE);
}
getResponse().setStatus(Status.SUCCESS_RESET_CONTENT);
return new EmptyRepresentation();
}
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