Examples with Objects java.util.Objects used on opensource projects

Example 41 with Objects

use of java.util.Objects in project grakn by graknlabs.

the class InferenceRule method propagateConstraints.

/**
 * @param parentAtom atom containing constraints (parent)
 * @param unifier unifier unifying parent with the rule
 * @return rule with propagated constraints from parent
 */
public InferenceRule propagateConstraints(Atom parentAtom, Unifier unifier) {
    if (!parentAtom.isRelation() && !parentAtom.isResource())
        return this;
    Atom headAtom = head.getAtom();
    Set<Atomic> bodyAtoms = new HashSet<>(body.getAtoms());
    // transfer value predicates
    parentAtom.getPredicates(ValuePredicate.class).flatMap(vp -> vp.unify(unifier).stream()).forEach(bodyAtoms::add);
    // if head is a resource merge vps into head
    if (headAtom.isResource() && ((ResourceAtom) headAtom).getMultiPredicate().isEmpty()) {
        ResourceAtom resourceHead = (ResourceAtom) headAtom;
        Set<ValuePredicate> innerVps = parentAtom.getInnerPredicates(ValuePredicate.class).flatMap(vp -> vp.unify(unifier).stream()).peek(bodyAtoms::add).collect(toSet());
        headAtom = ResourceAtom.create(headAtom.getPattern(), headAtom.getPredicateVariable(), resourceHead.getRelationVariable(), resourceHead.getTypeId(), innerVps, headAtom.getParentQuery());
    }
    Set<TypeAtom> unifiedTypes = parentAtom.getTypeConstraints().flatMap(type -> type.unify(unifier).stream()).collect(toSet());
    // set rule body types to sub types of combined query+rule types
    Set<TypeAtom> ruleTypes = body.getAtoms(TypeAtom.class).filter(t -> !t.isRelation()).collect(toSet());
    Set<TypeAtom> allTypes = Sets.union(unifiedTypes, ruleTypes);
    allTypes.stream().filter(ta -> {
        SchemaConcept schemaConcept = ta.getSchemaConcept();
        SchemaConcept subType = allTypes.stream().map(Atom::getSchemaConcept).filter(Objects::nonNull).filter(t -> ReasonerUtils.supers(t).contains(schemaConcept)).findFirst().orElse(null);
        return schemaConcept == null || subType == null;
    }).forEach(t -> bodyAtoms.add(t.copy(body)));
    return new InferenceRule(ReasonerQueries.atomic(headAtom), ReasonerQueries.create(bodyAtoms, tx), ruleId, tx);
}

Example 42 with Objects

use of java.util.Objects in project carbon-apimgt by wso2.

the class ApiFileDAOImpl method getAPIs.

/**
 * @see ApiDAO#getAPIs(Set, String)
 */
@Override
public List<API> getAPIs(Set<String> roles, String user) throws APIMgtDAOException {
    File[] files = new File(storagePath).listFiles();
    List<API> apiList = new ArrayList<>();
    final FilenameFilter filenameFilter = (dir, name) -> (name.endsWith(APIMgtConstants.APIFileUtilConstants.JSON_EXTENSION) && name.contains(APIMgtConstants.APIFileUtilConstants.API_DEFINITION_FILE_PREFIX) && !dir.isHidden());
    if (files != null) {
        for (File file : files) {
            apiList.add((API) fetchObject(file, FileApi.class, filenameFilter));
        }
    }
    apiList.removeIf(Objects::isNull);
    return apiList;
}

Example 43 with Objects

use of java.util.Objects in project TinyKeePass by sorz.

the class AuthActivity method onDatabaseOpened.

@Override
protected void onDatabaseOpened() {
    StructureParser.Result result = parseStructure();
    KeePassFile keePass = KeePassStorage.get(this);
    SearchIndex index = new SearchIndex(keePass);
    StringBuilder queryBuilder = new StringBuilder();
    result.title.forEach(title -> queryBuilder.append(title).append(' '));
    Stream<Entry> entryStream = index.search(queryBuilder.toString()).map(keePass::getEntryByUUID);
    FillResponse.Builder responseBuilder = new FillResponse.Builder();
    // add matched entities
    entryStream.map(entry -> AutofillUtils.buildDataset(this, entry, result)).filter(Objects::nonNull).limit(MAX_NUM_CANDIDATE_ENTRIES).forEach(responseBuilder::addDataset);
    // add "show all" item
    RemoteViews presentation = AutofillUtils.getRemoteViews(this, getString(R.string.autofill_item_show_all), R.drawable.ic_more_horiz_gray_24dp);
    presentation.setTextColor(R.id.textView, getColor(R.color.hint));
    Dataset.Builder datasetBuilder = new Dataset.Builder(presentation).setAuthentication(EntrySelectActivity.getAuthIntentSenderForResponse(this));
    result.allAutofillIds().forEach(id -> datasetBuilder.setValue(id, null));
    responseBuilder.addDataset(datasetBuilder.build());
    setFillResponse(responseBuilder.build());
    finish();
}

Example 44 with Objects

use of java.util.Objects in project camel by apache.

the class EtcdServiceDiscovery method getServices.

protected List<ServiceDefinition> getServices(Predicate<EtcdServiceDefinition> filter) {
    List<ServiceDefinition> servers = Collections.emptyList();
    if (isRunAllowed()) {
        try {
            final EtcdConfiguration conf = getConfiguration();
            final EtcdKeyGetRequest request = getClient().get(conf.getServicePath()).recursive();
            if (conf.hasTimeout()) {
                request.timeout(conf.getTimeout(), TimeUnit.SECONDS);
            }
            final EtcdKeysResponse response = request.send().get();
            if (Objects.nonNull(response.node) && !response.node.nodes.isEmpty()) {
                servers = response.node.nodes.stream().map(node -> node.value).filter(ObjectHelper::isNotEmpty).map(this::nodeFromString).filter(Objects::nonNull).filter(filter).sorted(EtcdServiceDefinition.COMPARATOR).collect(Collectors.toList());
            }
        } catch (Exception e) {
            throw new RuntimeCamelException(e);
        }
    }
    return servers;
}

Example 45 with Objects

use of java.util.Objects in project opennms by OpenNMS.

the class GraphMLMetaTopologyFactory method updated.

@Override
public void updated(String pid, @SuppressWarnings("rawtypes") Dictionary properties) throws ConfigurationException {
    LOG.debug("updated(String, Dictionary) invoked");
    String location = (String) properties.get(TOPOLOGY_LOCATION);
    if (!m_serviceRegistration.containsKey(pid)) {
        LOG.debug("Service with pid '{}' is new. Register {}", pid, GraphMLMetaTopologyProvider.class.getSimpleName());
        final Dictionary<String, Object> metaData = new Hashtable<>();
        metaData.put(Constants.SERVICE_PID, pid);
        if (properties.get(LABEL) != null) {
            metaData.put(LABEL, properties.get(LABEL));
        }
        // Expose the MetaTopologyProvider
        try {
            final GraphMLMetaTopologyProvider metaTopologyProvider = new GraphMLMetaTopologyProvider(m_serviceAccessor);
            metaTopologyProvider.setTopologyLocation(location);
            metaTopologyProvider.reload();
            registerService(pid, MetaTopologyProvider.class, metaTopologyProvider, metaData);
            // Create and register additional services
            final Set<String> iconKeys = metaTopologyProvider.getGraphProviders().stream().map(GraphProvider::getNamespace).flatMap(eachNamespace -> metaTopologyProvider.getRawTopologyProvider(eachNamespace).getVertices().stream()).map(Vertex::getIconKey).filter(Objects::nonNull).collect(Collectors.toSet());
            registerService(pid, IconRepository.class, new GraphMLIconRepository(iconKeys));
            // Create an OSGi aware script engine manager
            final ScriptEngineManager scriptEngineManager = new OSGiScriptEngineManager(m_bundleContext);
            metaTopologyProvider.getGraphProviders().forEach(it -> {
                // Find Topology Provider
                final GraphMLTopologyProvider rawTopologyProvider = metaTopologyProvider.getRawTopologyProvider(it.getNamespace());
                // EdgeStatusProvider
                registerService(pid, EdgeStatusProvider.class, new GraphMLEdgeStatusProvider(rawTopologyProvider, scriptEngineManager, m_serviceAccessor));
                // SearchProvider
                registerService(pid, SearchProvider.class, new GraphMLSearchProvider(rawTopologyProvider));
                // Vertex Status Provider
                // Only add status provider if explicitly set in GraphML document
                this.buildStatusProvider(metaTopologyProvider, scriptEngineManager, rawTopologyProvider).ifPresent(statusProvider -> registerService(pid, StatusProvider.class, statusProvider));
            });
        } catch (InvalidGraphException | IOException e) {
            LOG.error("An error occurred while loading GraphMLTopology from file {}. Ignoring...", location, e);
        }
    } else {
        LOG.warn("Service with pid '{}' updated. Updating is not supported. Ignoring...");
    }
}