Example usage for java.util.stream Stream concat

Introduction

In this page you can find the example usage for java.util.stream Stream concat.

Prototype

public static <T> Stream<T> concat(Stream<? extends T> a, Stream<? extends T> b)

Source Link

Document

Creates a lazily concatenated stream whose elements are all the elements of the first stream followed by all the elements of the second stream.

Usage

From source file:com.thinkbiganalytics.auth.jwt.JwtRememberMeServices.java

/**
 * Decodes the specified JWT cookie into tokens.
 *
 * <p>The first element of the return value with be the JWT subject. The remaining elements are the elements in the {@code groups} list.</p>
 *
 * @param cookie the JWT cookie/*from   w w  w .java  2s . c om*/
 * @return an array with the username and group names
 * @throws IllegalStateException  if the secret key is invalid
 * @throws InvalidCookieException if the cookie cannot be decoded
 */
@Nonnull
@Override
protected String[] decodeCookie(@Nonnull final String cookie) throws InvalidCookieException {
    // Build the JWT parser
    final JwtConsumer consumer = new JwtConsumerBuilder()
            .setEvaluationTime(NumericDate.fromMilliseconds(DateTimeUtils.currentTimeMillis()))
            .setVerificationKey(getSecretKey()).build();

    // Parse the cookie
    final String user;
    final List<String> groups;

    try {
        final JwtClaims claims = consumer.processToClaims(cookie);
        user = claims.getSubject();
        groups = claims.getStringListClaimValue(GROUPS);
    } catch (final InvalidJwtException e) {
        throw new InvalidCookieException("JWT cookie is invalid: " + e);
    } catch (final MalformedClaimException e) {
        throw new InvalidCookieException("JWT cookie is malformed: " + cookie);
    }

    if (StringUtils.isBlank(user)) {
        throw new InvalidCookieException("Missing user in JWT cookie: " + cookie);
    }

    // Build the token array
    final Stream<String> userStream = Stream.of(user);
    final Stream<String> groupStream = groups.stream();
    return Stream.concat(userStream, groupStream).toArray(String[]::new);
}

From source file:com.wormsim.animals.AnimalStage2.java

@Override
public String toVarianceString() {
    return Stream
            .concat(Stream.concat(Stream.concat(Stream.of(food_rate), Stream.of(pheromone_rates)),
                    Stream.of(dev_time)), Stream.of(development))
            .filter((v) -> v.isVisiblyTracked()).map((v) -> v.toVarianceString()).collect(Utils.TAB_JOINING);
}

From source file:me.rkfg.xmpp.bot.plugins.CoolStoryPlugin.java

@Override
public String getManual() {
    return Stream.concat(Stream.of(HELP_AVAILABLE_COMMANDS), Arrays.stream(WEBSITES).map(Website::getHelp))
            .collect(Collectors.joining("\n"));
}

From source file:org.obiba.mica.study.service.StudyService.java

public List<? extends EntityState> findAllStates(Iterable<String> ids) {
    return Stream.concat(individualStudyService.findAllStates(ids).stream(),
            harmonizationStudyService.findAllStates(ids).stream()).collect(Collectors.toList());
}

From source file:com.nestedbird.modules.sitemap.SitemapGenerator.java

@SafeVarargs
private final Stream<String> concatStreams(final Stream<String>... streams) {
    if (streams.length == 0)
        throw new IllegalArgumentException("No stream provided");

    Stream<String> currentStream = streams[0];
    for (Integer i = 1; i < streams.length; i++) {
        currentStream = Stream.concat(currentStream, streams[i]);
    }//  w ww  . j  av  a2s .  c om
    return currentStream;
}

From source file:org.codice.ddf.catalog.plugin.metacard.util.MetacardServices.java

/**
 * Helper method to combine all system-recognized {@link AttributeDescriptor}s with any new ones
 * on the given list of {@link Metacard}s without repeats.
 *
 * @param metacards List of metacards whose attribute descriptors should be added to the map.
 * @return A map of all system-recognized descriptors plus any new ones introduced by the
 *     metacards./* w  w w .  j av a  2s  .c  om*/
 */
private Map<String, AttributeDescriptor> getUniqueSystemAndMetacardDescriptors(List<Metacard> metacards) {
    List<MetacardType> systemMetacardTypesCopy = ImmutableList.copyOf(systemMetacardTypes);
    return Stream
            .concat(systemMetacardTypesCopy.stream().map(MetacardType::getAttributeDescriptors)
                    .flatMap(Set::stream).filter(Objects::nonNull),
                    metacards.stream().map(Metacard::getMetacardType).map(MetacardType::getAttributeDescriptors)
                            .flatMap(Set::stream).filter(Objects::nonNull))
            .collect(Collectors.toMap(AttributeDescriptor::getName, Function.identity(),
                    (oldValue, newValue) -> oldValue));
}

From source file:nl.salp.warcraft4j.dev.casc.dbc.DbcAnalyser.java

private Set<String> getAllDbcFilesByName() {
    LOGGER.debug("Getting all DBC files with a resolved name.");
    return Stream.concat(getCascResolvedDbcFilesByName().stream(), getListFileDbcFilesByName().stream())
            .filter(StringUtils::isNotEmpty).distinct().collect(Collectors.toSet());
}

From source file:org.springframework.cloud.dataflow.server.service.impl.TaskAppDeploymentRequestCreator.java

private List<String> updateCommandLineArgs(List<String> commandLineArgs, TaskExecution taskExecution) {
    return Stream
            .concat(commandLineArgs.stream().filter(a -> !a.startsWith("--spring.cloud.task.executionid=")),
                    Stream.of("--spring.cloud.task.executionid=" + taskExecution.getExecutionId()))
            .collect(Collectors.toList());
}

From source file:com.wormsim.animals.AnimalStage2.java

@Override
public String toWithinVarianceString() {
    return Stream
            .concat(Stream.concat(Stream.concat(Stream.of(food_rate), Stream.of(pheromone_rates)),
                    Stream.of(dev_time)), Stream.of(development))
            .filter((v) -> v.isVisiblyTracked()).map((v) -> v.toWithinVarianceString())
            .collect(Utils.TAB_JOINING);
}

From source file:com.thinkbiganalytics.security.rest.controller.AccessControlController.java

@GET
@Path("{name}/allowed")
@Produces(MediaType.APPLICATION_JSON)//from w  w w.ja va2  s  .  com
@ApiOperation("Gets the list of allowed actions for a principal.")
@ApiResponses({ @ApiResponse(code = 200, message = "Returns the actions.", response = ActionGroup.class),
        @ApiResponse(code = 404, message = "The given name was not found.", response = RestResponseStatus.class) })
public ActionGroup getAllowedActions(@PathParam("name") String moduleName,
        @QueryParam("user") Set<String> userNames, @QueryParam("group") Set<String> groupNames) {

    Set<? extends Principal> users = Arrays.stream(this.actionsTransform.asUserPrincipals(userNames))
            .collect(Collectors.toSet());
    Set<? extends Principal> groups = Arrays.stream(this.actionsTransform.asGroupPrincipals(groupNames))
            .collect(Collectors.toSet());
    Principal[] principals = Stream.concat(users.stream(), groups.stream()).toArray(Principal[]::new);

    // Retrieve the allowed actions by executing the query as the specified user/groups 
    return metadata.read(() -> {
        return actionsProvider.getAllowedActions(moduleName)
                .map(this.actionsTransform.toActionGroup(AllowedActions.SERVICES))
                .orElseThrow(() -> new WebApplicationException("The available service actions were not found",
                        Status.NOT_FOUND));
    }, principals);
}