public void start() {
groupSystem = EJBUtil.defaultLookup(GroupSystem.class);
personViewer = EJBUtil.defaultLookup(PersonViewer.class);
postingBoard = EJBUtil.defaultLookup(PostingBoard.class);
instance = this;
}
protected User getData1User(Block block) {
User user;
try {
user = EJBUtil.lookupGuid(em, User.class, block.getData1AsGuid());
} catch (NotFoundException e) {
throw new RuntimeException("invalid user in data1 of " + block, e);
}
return user;
}
/**
* Utility helper for implementing getInterestedGroups() that returns a single-member set with the
* group stored in data1.
*
* @param block
* @return
*/
protected Set<Group> getData1GroupAsSet(Block block) {
Group group;
try {
group = EJBUtil.lookupGuid(em, Group.class, block.getData1AsGuid());
} catch (NotFoundException e) {
throw new RuntimeException(e);
}
return Collections.singleton(group);
}
/**
* Utility helper for implementing getInterestedUsers() that gets everyone in the group identified
* by the group id in data1.
*
* @param block
* @return
*/
protected final Set<User> getUsersWhoCareAboutData1Group(Block block) {
Group group;
try {
group = EJBUtil.lookupGuid(em, Group.class, block.getData1AsGuid());
} catch (NotFoundException e) {
throw new RuntimeException("invalid group in data1 of " + block, e);
}
Set<User> groupMembers = groupSystem.getUserMembers(SystemViewpoint.getInstance(), group);
return groupMembers;
}
@Override
protected Post loadObject(Guid guid) {
try {
PostingBoard board = EJBUtil.defaultLookup(PostingBoard.class);
Post post = board.loadRawPost(SystemViewpoint.getInstance(), guid);
// Filter group notifications from search results
if (board.postIsGroupNotification(post)) return null;
return post;
} catch (NotFoundException e) {
throw new RuntimeException(e);
}
}
/**
* This is final since you should override saveInCacheInsideExistingTransaction instead, generally
*/
@TransactionAttribute(TransactionAttributeType.NEVER)
public final ResultType saveInCache(
final KeyType key, final ResultType data, final boolean refetchedWithoutCheckingCache) {
EJBUtil.assertNoTransaction();
try {
return runner.runTaskRetryingOnConstraintViolation(
new Callable<ResultType>() {
public ResultType call() {
return saveInCacheInsideExistingTransaction(
key, data, new Date(), refetchedWithoutCheckingCache);
}
});
} catch (Exception e) {
if (EJBUtil.isDatabaseException(e)) {
logger.warn("Ignoring database exception {}: {}", e.getClass().getName(), e.getMessage());
return data;
} else {
ExceptionUtils.throwAsRuntimeException(e);
throw new RuntimeException(e); // not reached
}
}
}
@Override
public void setAllLastUpdatedToZero(String key) {
EJBUtil.prepareUpdate(em, CachedFacebookPhotoData.class);
Query q =
em.createQuery(
"UPDATE CachedFacebookPhotoData c"
+ " SET c.lastUpdated = '1970-01-01 00:00:00' "
+ " WHERE c.userId = :userId");
q.setParameter("userId", key);
int updated = q.executeUpdate();
logger.debug("{} cached items expired for key {}", updated, key);
}
@Override
public IQ handleIQ(IQ packet) throws UnauthorizedException {
Log.debug("handling IQ packet " + packet);
IQ reply = IQ.createResultIQ(packet);
Element iq = packet.getChildElement();
String method = iq.attributeValue("name");
List<String> args = new ArrayList<String>();
// TODO Don't look this up each time
// We currently do this to avoid problems during development
// from reloading Jive - later we probably want to move this to
// constructor
XMPPMethods methods = EJBUtil.defaultLookup(XMPPMethods.class);
SimpleAnnotatedInvoker xmppInvoker =
new SimpleAnnotatedInvoker(XMPPRemoted.class, methods, new PersonArgumentPrepender());
for (Object argObj : iq.elements()) {
Node arg = (Node) argObj;
Log.debug("parsing expected arg node " + arg);
if (arg.getNodeType() == Node.ELEMENT_NODE) {
String argValue = arg.getText();
Log.debug("Adding arg value" + argValue);
args.add(argValue);
}
}
try {
Log.debug(
"invoking method "
+ method
+ " with ("
+ args.size()
+ ") args "
+ Arrays.toString(args.toArray()));
@SuppressWarnings("unused")
String replyStr = xmppInvoker.invoke(method, args, packet.getFrom());
// Don't do anything with this yet
} catch (Exception e) {
Log.debug("Caught exception during client method invocation", e);
}
return reply;
}
@TransactionAttribute(TransactionAttributeType.NEVER)
public ResultType fetchFromNet(KeyType key) {
EJBUtil.assertNoTransaction();
return fetchFromNetImpl(key);
}
@Override
protected List<Guid> loadAllIds() {
return EJBUtil.defaultLookup(PostingBoard.class).getAllPostIds();
}
