javax.jdo.JDOObjectNotFoundException Java Examples

/**
 * Convert the given JDOException to an appropriate exception from the
 * {@code org.springframework.dao} hierarchy.
 * <p>The most important cases like object not found or optimistic locking failure
 * are covered here. For more fine-granular conversion, JdoTransactionManager
 * supports sophisticated translation of exceptions via a JdoDialect.
 * @param ex JDOException that occured
 * @return the corresponding DataAccessException instance
 * @see JdoTransactionManager#convertJdoAccessException
 * @see JdoDialect#translateException
 */
public static DataAccessException convertJdoAccessException(JDOException ex) {
	if (ex instanceof JDOObjectNotFoundException) {
		throw new JdoObjectRetrievalFailureException((JDOObjectNotFoundException) ex);
	}
	if (ex instanceof JDOOptimisticVerificationException) {
		throw new JdoOptimisticLockingFailureException((JDOOptimisticVerificationException) ex);
	}
	if (ex instanceof JDODataStoreException) {
		return new JdoResourceFailureException((JDODataStoreException) ex);
	}
	if (ex instanceof JDOFatalDataStoreException) {
		return new JdoResourceFailureException((JDOFatalDataStoreException) ex);
	}
	if (ex instanceof JDOUserException) {
		return new JdoUsageException((JDOUserException) ex);
	}
	if (ex instanceof JDOFatalUserException) {
		return new JdoUsageException((JDOFatalUserException) ex);
	}
	// fallback
	return new JdoSystemException(ex);
}
 

/**
 * Convert the given JDOException to an appropriate exception from the
 * {@code org.springframework.dao} hierarchy.
 * <p>The most important cases like object not found or optimistic locking failure
 * are covered here. For more fine-granular conversion, JdoTransactionManager
 * supports sophisticated translation of exceptions via a JdoDialect.
 * @param ex JDOException that occured
 * @return the corresponding DataAccessException instance
 * @see JdoTransactionManager#convertJdoAccessException
 * @see JdoDialect#translateException
 */
public static DataAccessException convertJdoAccessException(JDOException ex) {
	if (ex instanceof JDOObjectNotFoundException) {
		throw new JdoObjectRetrievalFailureException((JDOObjectNotFoundException) ex);
	}
	if (ex instanceof JDOOptimisticVerificationException) {
		throw new JdoOptimisticLockingFailureException((JDOOptimisticVerificationException) ex);
	}
	if (ex instanceof JDODataStoreException) {
		return new JdoResourceFailureException((JDODataStoreException) ex);
	}
	if (ex instanceof JDOFatalDataStoreException) {
		return new JdoResourceFailureException((JDOFatalDataStoreException) ex);
	}
	if (ex instanceof JDOUserException) {
		return new JdoUsageException((JDOUserException) ex);
	}
	if (ex instanceof JDOFatalUserException) {
		return new JdoUsageException((JDOFatalUserException) ex);
	}
	// fallback
	return new JdoSystemException(ex);
}
 

private void processFileWithContent( final PersistenceManager pm, final Key fileKey, final String fileTypeString ) throws IOException {
	LOGGER.fine( "File key: " + fileKey + ", file type: " + fileTypeString );
	
	final FileType fileType = FileType.fromString( fileTypeString );
	
	final FileMetaData fmd;
	try {
		fmd =  (FileMetaData) pm.getObjectById( FILE_TYPE_CLASS_MAP.get( fileType ), fileKey );
	} catch ( final JDOObjectNotFoundException jonfe ) {
		LOGGER.warning( "File not found! (Deleted?)" );
		return;
	}
	LOGGER.fine( "sha1: " + fmd.getSha1() );
	if ( fmd.getBlobKey() != null && fmd.getContent() == null ) {
		LOGGER.warning( "This file is already processed!" );
		return;
	}
	if ( fmd.getContent() == null ) {
		LOGGER.warning( "File does not have content!" );
		return;
	}
	
	// Store content in the Blobstore
	final FileService      fileService = FileServiceFactory.getFileService();
	final AppEngineFile    appeFile    = fileService.createNewBlobFile( FILE_TYPE_MIME_TYPE_MAP.get( fileType ), fmd.getSha1() );
	final FileWriteChannel channel     = fileService.openWriteChannel( appeFile, true );
	final ByteBuffer       bb          = ByteBuffer.wrap( fmd.getContent().getBytes() );
	while ( bb.hasRemaining() )
		channel.write( bb );
	channel.closeFinally();
	
	fmd.setBlobKey( fileService.getBlobKey( appeFile ) );
	fmd.setContent( null );
	
	// I do not catch exceptions (so the task will be retried)
}
 

@Override
public void renderLogin(String userRecordKey, Wavelet wavelet) {
  // Clear login form.
  wavelet.getRootBlip().all().delete();

  PersistenceManager pm = SingletonPersistenceManagerFactory.get().getPersistenceManager();
  OAuthUser userProfile = null;
  try {
    userProfile = pm.getObjectById(OAuthUser.class, userRecordKey);
  } catch (JDOObjectNotFoundException objectNotFound) {
    LOG.severe("Error fetching object from datastore with key: " + userRecordKey);
  } finally {
    pm.close();
  }
  String url = userProfile.getAuthUrl();

  // Add authentication prompt and insert link to service provider log-in page
  // to wavelet.
  wavelet.getRootBlip().all().delete();
  StringBuilder b = new StringBuilder();
  b.append("\n");
  int startIndex = b.length();
  b.append(LOGIN_LINK_TEXT + "\n\n");
  wavelet.getRootBlip().append(b.toString());

  // Add button to click when authentication is complete.
  wavelet.getRootBlip().append(new FormElement(ElementType.BUTTON, LOGIN_BUTTON_ID,
      LOGIN_BUTTON_CAPTION));

  // Linkify the authorization link.
  wavelet.getRootBlip().range(startIndex, startIndex + LOGIN_LINK_TEXT.length()).annotate(
      LINK_ANNOTATION_KEY, url);
}
 

/**
 * Retrieves user's oauth information from Datastore.
 * 
 * @return the user profile (or null if not found).
 */
private OAuthUser retrieveUserProfile() {
  PersistenceManager pm = pmf.getPersistenceManager();
  OAuthUser userProfile = null;
  try {
    userProfile = pm.getObjectById(OAuthUser.class, userRecordKey);
  } catch (JDOObjectNotFoundException e) {
    LOG.info("Datastore object not yet initialized with key: " + userRecordKey);
  } finally {
    pm.close();
  }
  return userProfile;
}
 

public Credential loadCredential(PersistenceManager pm) {
  try {
    return pm.getObjectById(OAuthHmacCredential.class, userId);
  } catch (JDOObjectNotFoundException e) {
    return null;
  }
}
 

@Override
public void renderLogin(String userRecordKey, Wavelet wavelet) {
  // Clear login form.
  wavelet.getRootBlip().all().delete();

  PersistenceManager pm = SingletonPersistenceManagerFactory.get().getPersistenceManager();
  OAuthUser userProfile = null;
  try {
    userProfile = pm.getObjectById(OAuthUser.class, userRecordKey);
  } catch (JDOObjectNotFoundException objectNotFound) {
    LOG.severe("Error fetching object from datastore with key: " + userRecordKey);
  } finally {
    pm.close();
  }
  String url = userProfile.getAuthUrl();

  // Add authentication prompt and insert link to service provider log-in page
  // to wavelet.
  wavelet.getRootBlip().all().delete();
  StringBuilder b = new StringBuilder();
  b.append("\n");
  int startIndex = b.length();
  b.append(LOGIN_LINK_TEXT + "\n\n");
  wavelet.getRootBlip().append(b.toString());

  // Add button to click when authentication is complete.
  wavelet.getRootBlip().append(new FormElement(ElementType.BUTTON, LOGIN_BUTTON_ID,
      LOGIN_BUTTON_CAPTION));

  // Linkify the authorization link.
  wavelet.getRootBlip().range(startIndex, startIndex + LOGIN_LINK_TEXT.length()).annotate(
      LINK_ANNOTATION_KEY, url);
}
 

/**
 * Retrieves user's oauth information from Datastore.
 * 
 * @return the user profile (or null if not found).
 */
private OAuthUser retrieveUserProfile() {
  PersistenceManager pm = pmf.getPersistenceManager();
  OAuthUser userProfile = null;
  try {
    userProfile = pm.getObjectById(OAuthUser.class, userRecordKey);
  } catch (JDOObjectNotFoundException e) {
    LOG.info("Datastore object not yet initialized with key: " + userRecordKey);
  } finally {
    pm.close();
  }
  return userProfile;
}
 

public JdoObjectRetrievalFailureException(JDOObjectNotFoundException ex) {
	// Extract information about the failed object from the JDOException, if available.
	super((ex.getFailedObject() != null ? ex.getFailedObject().getClass() : null),
			(ex.getFailedObject() != null ? JDOHelper.getObjectId(ex.getFailedObject()) : null),
			ex.getMessage(), ex);
}
 

public JdoObjectRetrievalFailureException(JDOObjectNotFoundException ex) {
	// Extract information about the failed object from the JDOException, if available.
	super((ex.getFailedObject() != null ? ex.getFailedObject().getClass() : null),
			(ex.getFailedObject() != null ? JDOHelper.getObjectId(ex.getFailedObject()) : null),
			ex.getMessage(), ex);
}
 

@Override
protected final void doGet(HttpServletRequest req, HttpServletResponse resp)
    throws IOException, ServletException {
  // Parse the token that will be used to look up the flow object
  String completionCode = req.getParameter(completionCodeQueryParam);
  String errorCode = req.getParameter(ERROR_PARAM);

  if ((completionCode == null || "".equals(completionCode))
      && (errorCode == null || "".equals(errorCode))) {
    resp.setStatus(HttpServletResponse.SC_BAD_REQUEST);
    resp.getWriter().print("Must have a query parameter: " + completionCodeQueryParam);
    return;
  } else if (errorCode != null && !"".equals(errorCode)) {
    resp.sendRedirect(deniedRedirectUrl);
    return;
  }

  // Get a key for the logged in user to retrieve the flow
  String userId = getUserId();

  // Get flow from the data store
  PersistenceManager manager = pmf.getPersistenceManager();
  try {
    ThreeLeggedFlow flow = null;
    try {
      flow = manager.getObjectById(flowType, userId);
    } catch (JDOObjectNotFoundException e) {
      LOG.severe("Unable to locate flow by user: " + userId);
      resp.setStatus(HttpServletResponse.SC_NOT_FOUND);
      resp.getWriter().print("Unable to find flow for user: " + userId);
      return;
    }

    flow.setHttpTransport(getHttpTransport());
    flow.setJsonFactory(getJsonFactory());

    // Complete the flow object with the token we got in our query parameters
    Credential c = flow.complete(completionCode);
    manager.makePersistent(c);
    manager.deletePersistent(flow);
    resp.sendRedirect(redirectUrl);
  } finally {
    manager.close();
  }
}