/**
* Returns the unique result from the database that exactly matches <code>example</code>. This
* method is same as {@link #uniqueResult(Object)} but calls {@link #getUniqueEscape(Object)}
* instead of {@link #getUnique(Object)}
*
* @param example
* @return
* @throws TransactionException
*/
@SuppressWarnings("unchecked")
public <T> T uniqueResultEscape(final T example) throws TransactionException {
try {
return this.recast((Class<T>) example.getClass()).getUniqueEscape(example);
} catch (final RuntimeException ex) {
throw new TransactionInternalException(ex.getMessage(), ex);
} catch (final EucalyptusCloudException ex) {
throw new TransactionExecutionException(ex.getMessage(), ex);
}
}
public <T> T lookupAndClose(final T example) throws NoSuchElementException {
T ret = null;
try {
ret = this.getUnique(example);
this.commit();
} catch (final EucalyptusCloudException ex) {
this.rollback();
throw new NoSuchElementException(ex.getMessage());
}
return ret;
}
@SuppressWarnings("ThrowableResultOfMethodCallIgnored")
public void handle(final ExceptionMessage exMsg) {
EventRecord.here(getClass(), EventType.MSG_REPLY, exMsg.getPayload().getClass().getSimpleName())
.debug();
LOG.trace("Caught exception while servicing: " + exMsg.getPayload());
final Throwable exception = exMsg.getException();
if (exception instanceof MessagingException
&& exception.getCause() instanceof EucalyptusCloudException) {
try {
final EucalyptusCloudException cloudException =
(EucalyptusCloudException) exception.getCause();
final BaseMessage payload = parsePayload(exMsg.getPayload());
final HttpResponseStatus status;
final Role role;
final String code;
if (cloudException instanceof EucalyptusWebServiceException) {
final EucalyptusWebServiceException webServiceException =
(EucalyptusWebServiceException) cloudException;
role = webServiceException.getRole();
code = webServiceException.getCode();
} else {
role = Role.Receiver;
code = defaultCode;
}
final QueryBindingInfo info =
Ats.inClassHierarchy(cloudException.getClass()).get(QueryBindingInfo.class);
status =
info == null
? HttpResponseStatus.INTERNAL_SERVER_ERROR
: new HttpResponseStatus(info.statusCode(), code);
final BaseMessage errorResp =
buildErrorResponse(payload.getCorrelationId(), role, code, cloudException.getMessage());
Contexts.response(new BaseMessageSupplier(errorResp, status));
} catch (final PayloadParseException e) {
LOG.error("Failed to parse payload ", e.getCause());
}
} else {
LOG.error("Unable to handle exception", exception);
final BaseMessage errorResp = buildFatalResponse(exception);
Contexts.response(
new BaseMessageSupplier(errorResp, HttpResponseStatus.INTERNAL_SERVER_ERROR));
}
}