Example usage for java.util Comparator comparing

Introduction

In this page you can find the example usage for java.util Comparator comparing.

Prototype

public static <T, U extends Comparable<? super U>> Comparator<T> comparing(
        Function<? super T, ? extends U> keyExtractor)

Source Link

Document

Accepts a function that extracts a java.lang.Comparable Comparable sort key from a type T , and returns a Comparator that compares by that sort key.

Usage

From source file:jease.cms.service.Informations.java

public Map<Class<?>, Integer> getDatabaseClassCount() {
    Map<Class<?>, Integer> resultMap = new TreeMap<>(Comparator.comparing(Class::getName));
    //      for (Persistent obj : Database.query(Persistent.class)) {
    //         Class<?> clazz = obj.getClass();
    //         if (!resultMap.containsKey(clazz)) {
    //            resultMap.put(clazz, 0);
    //         }//from   w w  w . j a va  2 s. c o  m
    //         resultMap.put(clazz, resultMap.get(clazz) + 1);
    //      }
    return resultMap;
}

From source file:org.kie.workbench.common.migration.cli.MigrationApp.java

public MigrationApp(String args[]) {

    actualConfig = parseToolConfigOrExit(args);

    ServiceLoader<MigrationTool> migrationLoader = ServiceLoader.load(MigrationTool.class);

    migrationLoader.forEach(migrationTool -> migrationTools.add(migrationTool));

    Collections.sort(migrationTools, Comparator.comparing(MigrationTool::getPriority));
}

From source file:com.wrmsr.kleist.Segment.java

@JsonCreator
public Segment(@JsonProperty("generation") long generation,
        @JsonProperty("created_datetime") Instant createdDatetime,
        @JsonProperty("splits") Map<String, Split> splits) {
    checkArgument(generation >= 0);/*from w w w . j  a  va 2 s .  c o  m*/
    this.generation = generation;
    this.createdDatetime = requireNonNull(createdDatetime);
    this.splits = splits.entrySet().stream().sorted(Comparator.comparing(e -> e.getValue().getMinSequence()))
            .collect(toLinkedHashMap());
    checkArgument(zip(this.splits.values().stream(), this.splits.values().stream().skip(1))
            .allMatch(pair -> pair.getLeft().getMaxSequence() < pair.getRight().getMinSequence()));
}

From source file:pt.ist.fenix.ui.spring.BookmarksController.java

@RequestMapping
public String bookmarks(Model model) {
    model.addAttribute("bookmarks",
            Authenticate.getUser().getBookmarksSet().stream()
                    .sorted(Comparator.comparing(cat -> cat.getSite().getName().getContent()))
                    .collect(Collectors.toList()));
    final Student student = AccessControl.getPerson().getStudent();
    if (student != null) {
        model.addAttribute("courses",
                student.getActiveRegistrationsIn(ExecutionSemester.readActualExecutionSemester()).stream()
                        .flatMap(registration -> registration
                                .getAttendingExecutionCoursesForCurrentExecutionPeriod().stream())
                        .collect(Collectors.toList()));
    }/*  ww  w. j  ava 2 s.com*/
    return "fenix-learning/bookmarks";
}

From source file:org.apache.nifi.toolkit.cli.impl.result.VersionedFlowSnapshotMetadataResult.java

public VersionedFlowSnapshotMetadataResult(final ResultType resultType,
        final List<VersionedFlowSnapshotMetadata> versions) {
    super(resultType);
    this.versions = versions;
    Validate.notNull(this.versions);
    this.versions.sort(Comparator.comparing(VersionedFlowSnapshotMetadata::getVersion));
}

From source file:net.kemitix.checkstyle.ruleset.builder.DefaultReadmeIndexBuilder.java

@Override
public final String build() {
    return rulesProperties.getRules().stream().sorted(Comparator.comparing(lowerCaseRuleName()))
            .map(this::formatRuleRow).collect(Collectors.joining(NEWLINE));
}

From source file:io.github.resilience4j.ratelimiter.monitoring.endpoint.RateLimiterEventsEndpoint.java

@ReadOperation
public RateLimiterEventsEndpointResponse getAllRateLimiterEvents() {
    List<RateLimiterEventDTO> eventsList = eventsConsumerRegistry.getAllEventConsumer()
            .flatMap(CircularEventConsumer::getBufferedEvents)
            .sorted(Comparator.comparing(RateLimiterEvent::getCreationTime))
            .map(RateLimiterEventDTO::createRateLimiterEventDTO).toJavaList();
    return new RateLimiterEventsEndpointResponse(eventsList);
}

From source file:org.obiba.mica.study.rest.DraftHarmonizationStudiesResource.java

@GET
@Path("/harmonization-studies")
@Timed//from   w  ww  .j a  va  2  s. com
public List<Mica.StudyDto> list() {
    return harmonizationStudyService.findAllDraftStudies().stream()
            .filter(s -> subjectAclService.isPermitted("/draft/harmonization-study", "VIEW", s.getId()))
            .sorted(Comparator.comparing(AbstractGitPersistable::getId)).map(s -> dtos.asDto(s, true))
            .collect(Collectors.toList());
}

From source file:org.apache.nifi.toolkit.cli.impl.result.ProcessGroupsResult.java

public ProcessGroupsResult(final ResultType resultType, final List<ProcessGroupDTO> processGroups) {
    super(resultType);
    this.processGroups = processGroups;
    Validate.notNull(this.processGroups);
    this.processGroups.sort(Comparator.comparing(ProcessGroupDTO::getName));
}

From source file:am.ik.categolj3.api.category.InMemoryCategoryService.java

@Override
public List<List<String>> findAllOrderByNameAsc() {
    return this.categories.values().stream().distinct()
            .sorted(Comparator.comparing(categories -> String.join(",", categories)))
            .collect(Collectors.toList());
}