List of usage examples for com.google.common.util.concurrent Futures immediateFuture
@CheckReturnValue public static <V> ListenableFuture<V> immediateFuture(@Nullable V value)
From source file:com.google.gapid.models.ApiState.java
public ListenableFuture<Path.StateTreeNode> getResolvedSelectedPath() { Path.Any path = selection.get(); if (path == null || !isLoaded()) { return Futures.immediateFuture(Path.StateTreeNode.getDefaultInstance()); } else if (path.getPathCase() == Path.Any.PathCase.STATE_TREE_NODE) { return Futures.immediateFuture(path.getStateTreeNode()); }//from ww w . j a va 2 s . c o m return Futures.transform(client.get(Paths.stateTree(((RootNode) getData()).tree, path)), value -> value.getPath().getStateTreeNode()); }
From source file:io.v.x.jni.test.fortune.FortuneServerImpl.java
@Override public ListenableFuture<MultipleGetOut> multipleGet(VContext context, ServerCall call) { if (lastAddedFortune == null) { return Futures.immediateFailedFuture(new NoFortunesException(context)); }//from w w w . j av a 2 s . c o m MultipleGetOut ret = new MultipleGetOut(); ret.fortune = lastAddedFortune; ret.another = lastAddedFortune; return Futures.immediateFuture(ret); }
From source file:edu.ucsf.orng.shindig.service.JsonLDHandler.java
/** * Returns a list of people that correspond to the passed in person ids. * //from www .jav a2s .com * @param userIds * A set of users * @param groupId * The group * @param collectionOptions * How to filter, sort and paginate the collection being fetched * @param fields * The profile details to fetch. Empty set implies all * @param token * The gadget token @return a list of people. * @return Future that returns a RestfulCollection of Person */ private Future<JSONObject> getJSONItems(Set<String> urls, boolean nocache, String output, Set<String> fields, String containerSessionId, GroupId groupId, CollectionOptions collectionOptions, SecurityToken token) throws ProtocolException { try { Model model = null; Set<String> uris = Sets.newLinkedHashSet(); for (String url : urls) { RdfItem item = rdfService.getRDF(url, nocache, "full".equalsIgnoreCase(output), fields, containerSessionId, token); model = model == null ? item.getModel() : model.add(item.getModel()); uris.add(item.getRequestedUri()); } JSONObject jsonld = jsonldService.getJSONObject(model); // add the URI's JSONObject retval = new JSONObject().put("base", jsonldService.getBase()).put("uris", uris) .put("jsonld", jsonld); return Futures.immediateFuture(retval); } catch (Exception e) { throw new ProtocolException(HttpServletResponse.SC_INTERNAL_SERVER_ERROR, e.getMessage(), e); } }
From source file:org.opendaylight.controller.sample.kitchen.impl.KitchenServiceImpl.java
private Future<RpcResult<Void>> makeToast(Class<? extends ToastType> toastType, int toastDoneness) { if (toasterOutOfBread) { log.info("We're out of toast but we can make eggs"); return Futures.immediateFuture(RpcResultBuilder.<Void>success().withWarning(ErrorType.APPLICATION, "partial-operation", "Toaster is out of bread but we can make you eggs").build()); }/*w w w . ja v a 2s.c o m*/ // Access the ToasterService to make the toast. MakeToastInput toastInput = new MakeToastInputBuilder().setToasterDoneness((long) toastDoneness) .setToasterToastType(toastType).build(); return toaster.makeToast(toastInput); }
From source file:org.apache.shindig.social.websockbackend.spi.cypher.WsCypherGroupSPI.java
@SuppressWarnings("unchecked") @Override//from www .j a v a 2 s .co m public Future<RestfulCollection<Group>> getGroups(UserId userId, CollectionOptions options, Set<String> fields, SecurityToken token) throws ProtocolException { final List<Group> groupList = new ArrayList<Group>(); final WebsockQuery wsQuery = new WebsockQuery(EQueryType.PROCEDURE_CALL); if (options != null) { CollOptsConverter.convert(options, wsQuery); } // set parameters wsQuery.setPayload(WsCypherGroupSPI.GROUPS_QUERY_NAME); wsQuery.setParameter("id", userId.getUserId(token)); // execute final IQueryCallback callback = this.fQueryHandler.sendQuery(wsQuery); TableResult result = null; try { result = (TableResult) callback.get(); } catch (final Exception e) { e.printStackTrace(); this.fLogger.log(Level.SEVERE, "server error", e); throw new ProtocolException(HttpServletResponse.SC_INTERNAL_SERVER_ERROR, "could not retrieve result", e); } // wrap results Map<String, Object> gMap = null; for (final List<Object> gList : result.getResults()) { gMap = (Map<String, Object>) gList.get(0); groupList.add(new GroupDTO(gMap)); } final RestfulCollection<Group> rColl = new RestfulCollection<Group>(groupList); rColl.setStartIndex(result.getFirst()); rColl.setTotalResults(result.getTotal()); rColl.setItemsPerPage(result.getMax()); return Futures.immediateFuture(rColl); }
From source file:us.physion.ovation.ui.browser.TrashTopComponent.java
private ListenableFuture<Void> populateTrash() { final DataContext c = Lookup.getDefault().lookup(ConnectionProvider.class).getDefaultContext(); if (c == null) { //adding this node just to have a RefreshableNode as root explorerManager.setRootContext(new TrashRootNode(Children.LEAF)); log.warn("Null DataContext"); Toolkit.getDefaultToolkit().beep(); return Futures.immediateFuture(null); }//from w ww . j a va 2 s. c om final SettableFuture<Void> result = SettableFuture.create(); new SwingWorker<Iterable<OvationEntity>, Void>() { @Override protected Iterable<OvationEntity> doInBackground() throws Exception { return c.getTrashRoots(); } @Override protected void done() { if (isCancelled()) { result.set(null); return; } try { Iterable<OvationEntity> roots = get(); explorerManager.setRootContext(new TrashRootNode(new TopTrashChildren(roots))); result.set(null); } catch (InterruptedException ex) { log.warn("Cannot load trash roots", ex); result.setException(ex); } catch (ExecutionException ex) { log.warn("Cannot load trash roots", ex); result.setException(ex); } } }.execute(); return result; }
From source file:org.apache.rave.opensocial.service.impl.DefaultActivityStreamsService.java
/** * Returns a set of activities for the passed in user and group that corresponds to a list of activityIds. * <p/>//from ww w .ja v a 2 s .c om * Specified by: getActivityEntries(...) in ActivityStreamService * <p/> * Parameters: * userId The set of ids of the people to fetch activities for. * groupId Indicates whether to fetch activities for a group. * appId The app id. * fields The fields to return. Empty set implies all * options The sorting/filtering/pagination options * activityIds The set of activity ids to fetch. * token A valid SecurityToken * Returns: * a response item with the list of activities. * Throws: * ProtocolException - if any. */ @Override public Future<RestfulCollection<ActivityEntry>> getActivityEntries(UserId userId, GroupId groupId, String appId, Set<String> fields, CollectionOptions options, Set<String> activityIds, SecurityToken token) throws ProtocolException { List<ActivityEntry> entries = Lists.newLinkedList(); Map<String, Person> peopleById = Maps.newHashMap(); for (String id : activityIds) { entries.add(getActivity(fields, userId.getUserId(token), peopleById, id)); } return Futures.immediateFuture(new RestfulCollection<ActivityEntry>(entries)); }
From source file:org.apache.qpid.server.virtualhostnode.berkeleydb.BDBHARemoteReplicationNodeImpl.java
@StateTransition(currentState = { State.ACTIVE, State.UNAVAILABLE }, desiredState = State.DELETED)
private ListenableFuture<Void> doDelete() {
String nodeName = getName();//w w w .j a v a 2s .co m
getEventLogger().message(_virtualHostNodeLogSubject, HighAvailabilityMessages.DELETED());
boolean deletionAllowed;
try {
deletionAllowed = _replicatedEnvironmentFacade.removeNodeFromGroup(nodeName);
} catch (ServerScopedRuntimeException e) {
throw e;
} catch (RuntimeException e) {
throw new IllegalStateTransitionException("Unexpected exception on node '" + nodeName + "' deletion",
e);
}
if (deletionAllowed) {
setState(State.DELETED);
deleted();
} else {
throw new IllegalStateTransitionException(
"Node '" + nodeName + "' cannot be deleted when role is a master");
}
return Futures.immediateFuture(null);
}
From source file:org.apache.shindig.social.websockbackend.service.ExtPersonHandler.java
/** * Modified to enable friend requests requests. Allowed end-points /people/{userId}+/{groupId} * /people/{userId}/{groupId}/{optionalPersonId}+ * * examples: /people/john.doe/@all /people/john.doe/@friends /people/john.doe/@self *//* www . jav a 2 s. c om*/ @Operation(httpMethods = "GET") public Future<?> get(SocialRequestItem request) throws ProtocolException { final GroupId groupId = request.getGroup(); final Set<String> optionalPersonId = ImmutableSet.copyOf(request.getListParameter("personId")); final Set<String> fields = request.getFields(); final Set<UserId> userIds = request.getUsers(); // Preconditions HandlerPreconditions.requireNotEmpty(userIds, "No userId specified"); if (userIds.size() > 1 && !optionalPersonId.isEmpty()) { throw new IllegalArgumentException("Cannot fetch personIds for multiple userIds"); } final CollectionOptions options = new CollectionOptions(request); if (userIds.size() == 1) { if (optionalPersonId.isEmpty()) { if (groupId.getType() == GroupId.Type.self) { // If a filter is set then we have to call getPeople(), // otherwise use the simpler getPerson() if (options.getFilter() != null) { Person p = null; RestfulCollection<Person> people = null; try { people = this.fPersonSPI .getPeople(userIds, groupId, options, fields, request.getToken()).get(); } catch (final Exception e) { throw new RuntimeException(e); } if (people.getList() != null && people.getList().size() > 0) { p = people.getList().get(0); } return Futures.immediateFuture(p); } else { return this.fPersonSPI.getPerson(userIds.iterator().next(), fields, request.getToken()); } } else if (Constants.FRIEND_REQUESTS.equals(groupId.getObjectId())) { return this.fFriendSPI.getRequests(userIds.iterator().next(), options, fields, request.getToken()); } else { return this.fPersonSPI.getPeople(userIds, groupId, options, fields, request.getToken()); } } else if (optionalPersonId.size() == 1) { // TODO: Add some crazy concept to handle the userId? final Set<UserId> optionalUserIds = ImmutableSet .of(new UserId(UserId.Type.userId, optionalPersonId.iterator().next())); Person p = null; RestfulCollection<Person> people = null; try { people = this.fPersonSPI.getPeople(optionalUserIds, new GroupId(GroupId.Type.self, null), options, fields, request.getToken()).get(); } catch (final Exception e) { throw new RuntimeException(e); } if (people.getList() != null && people.getList().size() > 0) { p = people.getList().get(0); } return Futures.immediateFuture(p); } else { final ImmutableSet.Builder<UserId> personIds = ImmutableSet.builder(); for (final String pid : optionalPersonId) { personIds.add(new UserId(UserId.Type.userId, pid)); } // Every other case is a collection response of optional person // IDs return this.fPersonSPI.getPeople(personIds.build(), new GroupId(GroupId.Type.self, null), options, fields, request.getToken()); } } // Every other case is a collection response. return this.fPersonSPI.getPeople(userIds, groupId, options, fields, request.getToken()); }
From source file:com.facebook.buck.util.concurrent.ResourcePool.java
/** * @param executorService where to perform the resource processing. Should really be a "real" * executor (not a directExecutor). * @return a {@link ListenableFuture} containing the result of the processing. The future will be * cancelled if the {@link ResourcePool#close()} method is called. *///from w w w . ja v a2s. co m public synchronized <T> ListenableFuture<T> scheduleOperationWithResource(ThrowingFunction<R, T> withResource, final ListeningExecutorService executorService) { Preconditions.checkState(!closing.get()); final ListenableFuture<T> futureWork = Futures.transformAsync(initialSchedule(), new AsyncFunction<Void, T>() { @Override public ListenableFuture<T> apply(Void input) throws Exception { Either<R, ListenableFuture<Void>> resourceRequest = requestResource(); if (resourceRequest.isLeft()) { R resource = resourceRequest.getLeft(); boolean resourceIsDefunct = false; try { return Futures.immediateFuture(withResource.apply(resource)); } catch (Exception e) { resourceIsDefunct = (resourceUsageErrorPolicy == ResourceUsageErrorPolicy.RETIRE); throw e; } finally { returnResource(resource, resourceIsDefunct); } } else { return Futures.transformAsync(resourceRequest.getRight(), this, executorService); } } }, executorService); pendingWork.add(futureWork); futureWork.addListener(() -> { synchronized (ResourcePool.this) { pendingWork.remove(futureWork); } }, executorService); // If someone else calls cancel on `futureWork` it makes it impossible to wait for that future // to finish using the resource, which then makes shutdown code exit too early. return Futures.nonCancellationPropagating(futureWork); }