List of usage examples for com.google.common.collect Iterables isEmpty
public static boolean isEmpty(Iterable<?> iterable)
From source file:org.eclipse.sirius.diagram.sequence.business.internal.refresh.SequenceRefreshExtension.java
/** * {@inheritDoc}/* www . j a v a 2 s . co m*/ */ public void postRefresh(DDiagram dDiagram) { if (currentDiagram != null && currentDiagram.equals(dDiagram) && flags != null) { Collection<DDiagramElement> nodeEvents = getEventsToSync((SequenceDDiagram) dDiagram); if (nodeEvents.size() != 0) { for (DDiagramElement elt : nodeEvents) { Iterable<AbsoluteBoundsFilter> flag = Iterables.filter(elt.getGraphicalFilters(), AbsoluteBoundsFilter.class); EObject semanticTarget = elt.getTarget(); if (semanticTarget != null && Iterables.isEmpty(flag) && flags.containsKey(semanticTarget)) { AbsoluteBoundsFilter prevFlag = flags.get(semanticTarget); AbsoluteBoundsFilter newFlag = DiagramFactory.eINSTANCE.createAbsoluteBoundsFilter(); newFlag.setX(LayoutConstants.EXTERNAL_CHANGE_FLAG.x); newFlag.setY(prevFlag.getY()); newFlag.setHeight(prevFlag.getHeight()); newFlag.setWidth(prevFlag.getWidth()); elt.getGraphicalFilters().add(newFlag); } } } } if (flags != null) { flags.clear(); flags = null; } currentDiagram = null; }
From source file:com.b2international.index.lucene.IndexFieldBase.java
@Override public final Query toQuery(Iterable<T> values) { if (values == null || Iterables.isEmpty(values)) { return new MatchNoDocsQuery(); } else {//from www . j a v a 2 s.c o m return toSetQuery(values); } }
From source file:com.google.api.server.spi.config.validation.ApiConfigValidator.java
/** * Validates all configurations for a single API. Makes sure the API-level configuration matches * for all classes and that the contained configuration is valid and can be turned into a *.api * file. Only checks for swarm-specific validity. Apiary FE may still dislike a config for its * own reasons.//from ww w. j a v a 2 s . com * * @throws ApiConfigInvalidException on any invalid API-wide configuration. * @throws ApiClassConfigInvalidException on any invalid API class configuration. * @throws ApiMethodConfigInvalidException on any invalid API method configuration. * @throws ApiParameterConfigInvalidException on any invalid API parameter configuration. */ public void validate(Iterable<? extends ApiConfig> apiConfigs) throws ApiConfigInvalidException, ApiClassConfigInvalidException, ApiMethodConfigInvalidException, ApiParameterConfigInvalidException { if (Iterables.isEmpty(apiConfigs)) { return; } Map<String, ApiMethodConfig> restfulSignatures = Maps.newHashMap(); Iterator<? extends ApiConfig> i = apiConfigs.iterator(); ApiConfig first = i.next(); validate(first, restfulSignatures); while (i.hasNext()) { ApiConfig config = i.next(); Iterable<ApiConfigInconsistency<Object>> inconsistencies = config .getConfigurationInconsistencies(first); if (!Iterables.isEmpty(inconsistencies)) { throw new InconsistentApiConfigurationException(config, first, inconsistencies); } validate(config, restfulSignatures); } }
From source file:com.google.devtools.build.lib.rules.android.DataBinding.java
/** * Should data binding support be enabled for this rule? * * <p>This is true if either the rule or any of its transitive dependencies declares data binding * support in its attributes./* w ww. ja v a2 s . co m*/ * * <p>Data binding incurs additional resource processing and compilation work as well as * additional compile/runtime dependencies. But rules with data binding disabled will fail if * any data binding expressions appear in their layout resources. */ public static boolean isEnabled(RuleContext ruleContext) { if (ruleContext.attributes().has("enable_data_binding", Type.BOOLEAN) && ruleContext.attributes().get("enable_data_binding", Type.BOOLEAN)) { return true; } else { return !Iterables.isEmpty(ruleContext.getPrerequisites("deps", RuleConfiguredTarget.Mode.TARGET, UsesDataBindingProvider.class)); } }
From source file:org.apache.aurora.common.zookeeper.CandidateImpl.java
@Override public Supplier<Boolean> offerLeadership(final Leader leader) throws JoinException, WatchException, InterruptedException { final Membership membership = group.join(IP_ADDRESS_DATA_SUPPLIER, leader::onDefeated); final AtomicBoolean elected = new AtomicBoolean(false); final AtomicBoolean abdicated = new AtomicBoolean(false); group.watch(memberIds -> {/*w w w . j a v a 2s. c om*/ boolean noCandidates = Iterables.isEmpty(memberIds); String memberId = membership.getMemberId(); if (noCandidates) { LOG.warn("All candidates have temporarily left the group: " + group); } else if (!Iterables.contains(memberIds, memberId)) { LOG.error("Current member ID {} is not a candidate for leader, current voting: {}", memberId, memberIds); } else { boolean electedLeader = memberId.equals(getLeader(memberIds)); boolean previouslyElected = elected.getAndSet(electedLeader); if (!previouslyElected && electedLeader) { LOG.info("Candidate {} is now leader of group: {}", membership.getMemberPath(), memberIds); leader.onElected(() -> { membership.cancel(); abdicated.set(true); }); } else if (!electedLeader) { if (previouslyElected) { leader.onDefeated(); } LOG.info("Candidate {} waiting for the next leader election, current voting: {}", membership.getMemberPath(), memberIds); } } }); return () -> !abdicated.get() && elected.get(); }
From source file:org.metaborg.intellij.languages.DefaultLanguageManager.java
/** * {@inheritDoc}/* w w w . j av a 2 s.c o m*/ */ @Override public Collection<ILanguageComponent> discover(final LanguageIdentifier id) throws LanguageLoadingFailedException { synchronized (this.objectLock) { this.logger.debug("Finding language '{}'.", id); @Nullable final FileObject rootLocation = this.languageSource.find(id); if (rootLocation == null) { this.logger.error("Could not find language with id '{}'.", id); return Collections.emptyList(); } this.logger.debug("Found language '{}' at: {}", id, rootLocation); this.logger.debug("Requesting discovery of language '{}' at: {}", id, rootLocation); final Iterable<ILanguageDiscoveryRequest> requests; try { requests = this.discoveryService.request(rootLocation); if (Iterables.isEmpty(requests)) { this.logger.error("Got no discovery requests for language '{}' at: {}", id, rootLocation); return Collections.emptyList(); } } catch (final MetaborgException e) { throw new LanguageLoadingFailedException("Could not load language '{}' at: {}", e, id, rootLocation); } final Collection<ILanguageComponent> components = loadRange(requests); this.logger.debug("Discovered components language '{}': {}", id, components); return components; } }
From source file:brooklyn.location.waratek.WaratekMachineLocation.java
@Override public WaratekContainerLocation obtain(Map<?, ?> flags) throws NoMachinesAvailableException { Integer maxSize = jvm.getConfig(JavaVirtualMachine.JVC_CLUSTER_MAX_SIZE); Integer currentSize = jvm.getAttribute(WaratekAttributes.JVC_COUNT); Iterable<Entity> available = jvm.getAvailableJvcs(); Entity entity = (Entity) flags.get("entity"); if (LOG.isDebugEnabled()) { LOG.debug("JVM {}: {} containers, {} available, max {}", new Object[] { jvm.getJvmName(), currentSize, Iterables.size(available), maxSize }); }/* ww w .jav a 2s . c om*/ // also try to satisfy the affinty rules etc. // If there are no stopped JVCs then add a new one if (Iterables.isEmpty(available)) { if (currentSize != null && currentSize >= maxSize) { throw new NoMachinesAvailableException( String.format("Limit of %d containers reached at %s", maxSize, jvm.getJvmName())); } // increase size of JVC cluster DynamicCluster cluster = jvm.getJvcCluster(); Optional<Entity> added = cluster.addInSingleLocation(this, MutableMap.of("entity", entity)); if (!added.isPresent()) { throw new NoMachinesAvailableException( String.format("Failed to create containers reached in %s", jvm.getJvmName())); } return ((JavaVirtualContainer) added.get()).getDynamicLocation(); } else { WaratekContainerLocation container = ((JavaVirtualContainer) Iterables.getLast(available)) .getDynamicLocation(); container.setEntity(entity); return container; } }
From source file:com.eucalyptus.loadbalancing.config.LoadBalancingServiceBuilder.java
@SuppressWarnings("unchecked") private boolean noOtherEnabled(final ServiceConfiguration config) { return Iterables.isEmpty(ServiceConfigurations.filter(LoadBalancing.class, Predicates.and(ServiceConfigurations.filterHostLocal(), ServiceConfigurations.filterEnabled(), Predicates.not(Predicates.equalTo(config))))); }
From source file:org.apache.cassandra.cql3.selection.Selection.java
/** * Checks if this selection contains static columns. * @return <code>true</code> if this selection contains static columns, <code>false</code> otherwise; */// ww w . j a v a2s .c o m public boolean containsStaticColumns() { if (!cfm.hasStaticColumns()) return false; if (isWildcard()) return true; return !Iterables.isEmpty(Iterables.filter(columns, STATIC_COLUMN_FILTER)); }
From source file:com.groupon.jenkins.dynamic.buildconfiguration.CompositeConfigSection.java
@Override public Iterable<String> getValidationErrors() { Iterable<String> errors = super.getValidationErrors(); if (Iterables.isEmpty(errors)) { List<String> allowedKeys = new ArrayList<String>(subSections.length); for (int i = 0; i < subSections.length; i++) { allowedKeys.add(subSections[i].getName()); }/*from www. j a va 2 s .c o m*/ errors = Iterables.concat(errors, validateForRedundantKeys(allowedKeys)); for (int i = 0; i < subSections.length; i++) { errors = Iterables.concat(errors, subSections[i].getValidationErrors()); } } return errors; }