Example usage for java.util.stream Collectors toMap

Introduction

In this page you can find the example usage for java.util.stream Collectors toMap.

Prototype

public static <T, K, U> Collector<T, ?, Map<K, U>> toMap(Function<? super T, ? extends K> keyMapper,
        Function<? super T, ? extends U> valueMapper)

Source Link

Document

Returns a Collector that accumulates elements into a Map whose keys and values are the result of applying the provided mapping functions to the input elements.

Usage

From source file:se.uu.it.cs.recsys.ruleminer.api.RuleMiner.java

/**
 *
 * @param targets//from www  .  j  a va 2s . c o m
 * @param threshold
 * @return pairs of (rule, support)
 */
@Cacheable("FPPatterns")
public Map<Set<Integer>, Integer> getPatterns(Set<Integer> targets, Integer threshold) {

    Map<Set<Integer>, Integer> allRules = getPatterns(threshold);

    return allRules.entrySet().stream().filter(intertectWithTargets(targets))
            .filter(entry -> entry.getKey().size() > 1)
            .collect(Collectors.toMap(Map.Entry::getKey, Map.Entry::getValue));
}

From source file:io.syndesis.credential.CredentialProviderRegistry.java

CredentialProviderRegistry(final DataManager dataManager) {
    this.dataManager = dataManager;

    credentialProviderFactories = SpringFactoriesLoader
            .loadFactories(CredentialProviderFactory.class, ClassUtils.getDefaultClassLoader()).stream()
            .collect(Collectors.toMap(CredentialProviderFactory::id, Function.identity()));
}

From source file:org.dataconservancy.packaging.tool.integration.PackageInitializer.java

public PackageState initialize(URI profile) {
    try {/*from w ww. ja v a  2 s  .  c o  m*/
        Node tree = ipmService
                .createTreeFromFileSystem(Paths.get(this.getClass().getResource("/TestContent/foo").toURI())
                        .getParent().resolve("Parent_Dir"));

        Map<URI, DomainProfile> profiles = profileStore.getPrimaryDomainProfiles().stream()
                .collect(Collectors.toMap(DomainProfile::getIdentifier, Function.identity()));

        Model model = ModelFactory.createDefaultModel();

        DomainProfileService profileService = profileFactory.getProfileService(model);

        profileService.assignNodeTypes(profiles.get(profile), tree);

        PackageState state = new PackageState();

        state.setDomainObjectRDF(model);
        state.setPackageTree(ipm2rdf.transformToRDF(tree));
        state.setUserSpecifiedProperties(new HashMap<>());
        return state;
    } catch (Exception e) {
        throw new RuntimeException(e);
    }
}

From source file:com.teradata.tempto.internal.configuration.ConfigurationVariableResolver.java

private Map<String, Object> resolveVariables(Configuration configuration, StrSubstitutor strSubstitutor) {
    return configuration.listKeyPrefixes(1).stream()
            .map(prefix -> resolveConfigurationEntry(configuration, prefix, strSubstitutor))
            .collect(Collectors.toMap(entry -> entry.getLeft(), entry -> entry.getRight()));
}

From source file:newcontroller.handler.impl.DefaultRequest.java

@Override
public Map<String, List<String>> params() {
    return this.request.getParameterMap().entrySet().stream()
            .collect(Collectors.toMap(Map.Entry::getKey, x -> Arrays.asList(x.getValue())));
}

From source file:com.netflix.spinnaker.igor.config.GitlabCiConfig.java

@Bean
public Map<String, GitlabCiService> gitlabCiMasters(BuildMasters buildMasters,
        final IgorConfigurationProperties igorConfigurationProperties, GitlabCiProperties gitlabCiProperties,
        ObjectMapper objectMapper) {//from  w  ww .j a v  a 2  s. c  o m
    log.info("creating gitlabCiMasters");
    Map<String, GitlabCiService> gitlabCiMasters = gitlabCiProperties.getMasters().stream()
            .collect(Collectors.toMap(gitlabCiHost -> "gitlab-ci-" + gitlabCiHost.getName(),
                    gitlabCiHost -> gitlabCiService(igorConfigurationProperties, gitlabCiHost, objectMapper)));
    buildMasters.getMap().putAll(gitlabCiMasters);
    return gitlabCiMasters;
}

From source file:mtsar.processors.meta.ZenCrowd.java

@Nonnull
@Override/*from  www . j  ava  2s .  c o m*/
public Map<Integer, AnswerAggregation> aggregate(@Nonnull Collection<Task> tasks) {
    requireNonNull(stage, "the stage provider should not provide null");
    if (tasks.isEmpty())
        return Collections.emptyMap();
    final Map<Integer, Task> taskIds = tasks.stream()
            .collect(Collectors.toMap(Task::getId, Function.identity()));
    final Models.ZenModel<Integer, Integer, String> zenModel = compute(stage, answerDAO, getTaskMap())
            .getZenModel();
    final ZenCrowdEM<Integer, Integer, String> zenCrowd = new ZenCrowdEM<>(zenModel);
    zenCrowd.computeLabelEstimates();
    final Map<Integer, AnswerAggregation> aggregations = zenCrowd.getCurrentModel().getCombinedEstLabels()
            .entrySet().stream().filter(entry -> taskIds.containsKey(entry.getKey()))
            .collect(Collectors.toMap(Map.Entry::getKey, entry -> new AnswerAggregation.Builder()
                    .setTask(taskIds.get(entry.getKey())).addAnswers(entry.getValue().getFirst()).build()));
    return aggregations;
}

From source file:org.ow2.proactive.connector.iaas.cache.InfrastructureCache.java

private Map<String, Infrastructure> cloneSupportedInfrastructures() {
    return supportedInfrastructures.entrySet().stream()
            .collect(Collectors.toMap(Map.Entry::getKey, Map.Entry::getValue));
}

From source file:delfos.dataset.generated.modifieddatasets.pseudouser.PseudoUserRatingsDataset.java

public PseudoUserRatingsDataset(DatasetLoader<RatingType> originalDatasetLoader,
        Map<User, Map<Item, RatingType>> pseudoUsersRatings) {

    this.originalDatasetLoader = originalDatasetLoader;
    this.pseudoUsersRatings = pseudoUsersRatings;

    pseudoUsersById = pseudoUsersRatings.keySet().stream()
            .collect(Collectors.toMap(user -> user.getId(), user -> user));
}

From source file:org.openlmis.fulfillment.service.ShipmentService.java

/**
 * Saves the given shipment to database. Also related Proof Of Delivery will be created.
 *//*from   ww w .j a  v  a  2 s.  co m*/
public Shipment save(final Shipment shipment) {
    Shipment saved = shipmentRepository.save(shipment);

    Set<UUID> orderableIds = saved.getLineItems().stream().map(ShipmentLineItem::getOrderableId)
            .collect(Collectors.toSet());

    Map<UUID, Boolean> useVvm = orderableReferenceDataService.findByIds(orderableIds).stream()
            .collect(Collectors.toMap(BaseDto::getId, OrderableDto::useVvm));

    ProofOfDelivery proofOfDelivery = ProofOfDelivery.newInstance(saved, useVvm);
    proofOfDeliveryRepository.save(proofOfDelivery);

    return saved;
}