Example usage for java.util Set stream

Introduction

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

Prototype

default Stream<E> stream() 

Source Link

Document

Returns a sequential Stream with this collection as its source.

Usage

From source file:se.uu.it.cs.recsys.constraint.util.ConstraintResultConverter.java

public Map<Integer, Set<Course>> convertToMap(Domain[] solution) {
    Map<Integer, Set<Course>> result = new HashMap<>();

    if (solution == null || solution.length == 0) {
        LOGGER.debug("Input result is empty!");
        return result;
    }/*from www .j  av a2 s.co  m*/

    int i = 1;
    for (Domain var : solution) {
        LOGGER.debug("Solution domain to be converted: " + var.toString());

        SetDomainValueEnumeration ve = (SetDomainValueEnumeration) (var.valueEnumeration());

        Set<Integer> courseIds = new HashSet<>();

        while (ve.hasMoreElements()) {
            int[] elemArray = ve.nextSetElement().toIntArray();

            for (int elem : elemArray) {
                courseIds.add(elem);
            }
        }

        Set<se.uu.it.cs.recsys.persistence.entity.Course> courseEntities = this.courseRepository
                .findByAutoGenIds(courseIds);

        Set<Course> courseInfoSet = courseEntities.stream().map(course -> {
            Course courseInfo = new Course.Builder().setName(course.getName())
                    .setCredit(course.getCredit().getCredit()).setCode(course.getCode())
                    .setLevel(CourseLevel.ofDBString(course.getLevel().getLevel()))
                    .setTaughtYear(Integer.valueOf(course.getTaughtYear()))
                    .setStartPeriod(Integer.valueOf(course.getStartPeriod()))
                    .setEndPeriod(Integer.valueOf(course.getEndPeriod())).build();

            return courseInfo;
        }).collect(Collectors.toSet());

        result.put(i, courseInfoSet);

        i++;
    }

    return result;
}

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From source file:io.ingenieux.lambada.maven.LambadaGenerateMojo.java

@Override
protected void executeInternal() throws Exception {
    outputFile.getParentFile().mkdirs();

    final Set<Method> methodsAnnotatedWith = extractRuntimeAnnotations(LambadaFunction.class);

    // TODO: Validate clashing paths

    final TreeSet<LambadaFunctionDefinition> definitionTreeSet = methodsAnnotatedWith.stream()
            .map(f -> Unthrow.wrap(this::extractFunctionDefinitions, f))
            .collect(Collectors.toCollection(TreeSet::new));

    final List<LambadaFunctionDefinition> defList = new ArrayList<>(definitionTreeSet);

    OBJECT_MAPPER.writeValue(new FileOutputStream(outputFile), defList);
}

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From source file:com.thoughtworks.go.server.service.MagicalMaterialAndMaterialConfigConversionTest.java

@Test
public void failIfNewTypeOfMaterialIsNotAddedInTheAboveTest() throws Exception {
    ClassPathScanningCandidateComponentProvider provider = new ClassPathScanningCandidateComponentProvider(
            false);/*from   w w w  .  j  a  v a 2  s  . c  o m*/
    provider.addIncludeFilter(new AssignableTypeFilter(MaterialConfig.class));
    Set<BeanDefinition> candidateComponents = provider.findCandidateComponents("com/thoughtworks");
    List<Class> reflectionsSubTypesOf = candidateComponents.stream()
            .map(beanDefinition -> beanDefinition.getBeanClassName()).map(s -> {
                try {
                    return Class.forName(s);
                } catch (ClassNotFoundException e) {
                    throw new RuntimeException(e);
                }
            }).collect(Collectors.toList());

    reflectionsSubTypesOf.removeIf(this::isNotAConcrete_NonTest_MaterialConfigImplementation);

    List<Class> allExpectedMaterialConfigImplementations = allMaterialConfigsWhichAreDataPointsInThisTest();

    assertThatAllMaterialConfigsInCodeAreTestedHere(reflectionsSubTypesOf,
            allExpectedMaterialConfigImplementations);
}

---

From source file:info.archinnov.achilles.internals.metamodel.SetProperty.java

@Override
public Set<VALUETO> encodeFromJavaInternal(Set<VALUEFROM> set) {
    if (LOGGER.isTraceEnabled()) {
        LOGGER.trace(format("Encode from Java '%s' set %s to CQL type", fieldName, set));
    }// ww  w .j ava2 s  .com
    return new HashSet<>(set.stream().map(value -> valueProperty.encodeFromRaw(value)).collect(toSet()));
}

---

From source file:com.graphaware.module.es.search.Searcher.java

private <T extends PropertyContainer> List<SearchMatch<T>> buildSearchMatches(SearchResult searchResult) {
    List<SearchMatch<T>> matches = new ArrayList<>();
    Set<Map.Entry<String, JsonElement>> entrySet = searchResult.getJsonObject().entrySet();
    entrySet.stream().filter((item) -> (item.getKey().equalsIgnoreCase("hits")))
            .map((item) -> (JsonObject) item.getValue()).filter((hits) -> (hits != null))
            .map((hits) -> hits.getAsJsonArray("hits")).filter((hitsArray) -> (hitsArray != null))
            .forEach((hitsArray) -> {
                for (JsonElement element : hitsArray) {
                    JsonObject obj = (JsonObject) element;

                    // extract the result score
                    JsonElement _score = obj.get("_score");
                    Double score = null;
                    if (_score != null && !_score.isJsonNull() && _score.isJsonPrimitive()
                            && ((JsonPrimitive) _score).isNumber()) {
                        score = _score.getAsDouble();
                    }//from   w w  w. j  a v a 2s. co  m

                    // extract the result id
                    String keyValue = obj.get("_id") != null ? obj.get("_id").getAsString() : null;
                    if (keyValue == null) {
                        LOG.warn("No key found in search result: " + obj.getAsString());
                    } else {
                        matches.add(new SearchMatch<>(keyValue, score));
                    }
                }
            });
    return matches;
}

---

From source file:io.syndesis.dao.validation.UniquePropertyValidator.java

@Override
public boolean isValid(final WithId<?> value, final ConstraintValidatorContext context) {
    if (value == null) {
        return true;
    }//  w ww. ja  v a  2s . c o  m

    final PropertyAccessor bean = new BeanWrapperImpl(value);

    final String propertyValue = String.valueOf(bean.getPropertyValue(property));

    @SuppressWarnings({ "rawtypes", "unchecked" })
    final Class<WithId> modelClass = (Class) value.getKind().modelClass;

    @SuppressWarnings("unchecked")
    final Set<String> ids = dataManager.fetchIdsByPropertyValue(modelClass, property, propertyValue);

    final boolean isUnique = ids.isEmpty() || value.getId().map(id -> ids.contains(id)).orElse(false);

    if (!isUnique) {
        if (ids.stream().allMatch(id -> consideredValidByException(modelClass, id))) {
            return true;
        }

        context.disableDefaultConstraintViolation();
        context.unwrap(HibernateConstraintValidatorContext.class)
                .addExpressionVariable("nonUnique", propertyValue)
                .buildConstraintViolationWithTemplate(context.getDefaultConstraintMessageTemplate())
                .addPropertyNode(property).addConstraintViolation();
    }

    return isUnique;
}

---

From source file:com.netflix.conductor.core.events.EventProcessor.java

private void refresh() {
    Set<String> events = ms.getEventHandlers().stream().map(eh -> eh.getEvent()).collect(Collectors.toSet());
    List<ObservableQueue> created = new LinkedList<>();
    events.stream().forEach(event -> queuesMap.computeIfAbsent(event, s -> {
        ObservableQueue q = EventQueues.getQueue(event, false);
        created.add(q);/*w w  w.  j  a v  a 2 s  .  c  om*/
        return q;
    }));
    if (!created.isEmpty()) {
        created.stream().filter(q -> q != null).forEach(queue -> listen(queue));
    }
}

---

From source file:de.dentrassi.rpm.builder.YumMojo.java

@Override
public void execute() throws MojoExecutionException, MojoFailureException {
    this.logger = new Logger(getLog());

    try {//from  ww w .j  av  a  2s.c  o m
        final Builder builder = new RepositoryCreator.Builder();
        builder.setTarget(new FileSystemSpoolOutTarget(this.outputDirectory.toPath()));

        if (!this.skipSigning) {
            final PGPPrivateKey privateKey = SigningHelper.loadKey(this.signature, this.logger);
            if (privateKey != null) {
                final int digestAlgorithm = HashAlgorithm.from(this.signature.getHashAlgorithm()).getValue();
                builder.setSigning(output -> new SigningStream(output, privateKey, digestAlgorithm, false,
                        "RPM builder Mojo - de.dentrassi.maven:rpm"));
            }
        }

        final RepositoryCreator creator = builder.build();

        this.packagesPath = new File(this.outputDirectory, "packages");
        Files.createDirectories(this.packagesPath.toPath());

        final Collection<Path> paths = Lists.newArrayList();

        if (!this.skipDependencies) {
            final Set<Artifact> deps = this.project.getArtifacts();
            if (deps != null) {
                paths.addAll(deps.stream()//
                        .filter(d -> d.getType().equalsIgnoreCase("rpm"))//
                        .map(d -> d.getFile().toPath())//
                        .collect(Collectors.toList()));
            }
        } else {
            this.logger.debug("Skipped RPM artifacts from maven dependencies");
        }

        if (this.files != null) {
            paths.addAll(this.files.stream().map(f -> f.toPath()).collect(Collectors.toList()));
        }
        if (this.directories != null) {
            for (final File dir : this.directories) {
                Files.walkFileTree(dir.toPath(), new SimpleFileVisitor<Path>() {
                    @Override
                    public FileVisitResult visitFile(final Path file, final BasicFileAttributes attrs)
                            throws IOException {
                        if (file.getFileName().toString().toLowerCase().endsWith(".rpm")) {
                            paths.add(file);
                        }
                        return FileVisitResult.CONTINUE;
                    }
                });
            }
        }

        addPackageList(creator, paths);
    } catch (final IOException e) {
        throw new MojoExecutionException("Failed to write repository", e);
    }
}

---

From source file:se.uu.it.cs.recsys.constraint.util.ConstraintResultConverter.java

public Map<Integer, Set<Course>> convert(SetVar[] in) {
    Map<Integer, Set<Course>> result = new HashMap<>();

    if (in == null || in.length == 0) {
        LOGGER.debug("Input result is empty!");
        return result;
    }/*ww w .j  a  v  a  2 s.c o  m*/

    int i = 1;
    for (SetVar var : in) {
        LOGGER.debug("SetVar to be converted: " + var.toString());

        if (var.dom() == null || var.dom().isEmpty()) {
            LOGGER.debug("The {}th var domain is empty.", i);
            i++;
            continue;
        }

        SetDomainValueEnumeration ve = (SetDomainValueEnumeration) (var.dom().valueEnumeration());

        Set<Integer> courseIds = new HashSet<>();

        while (ve.hasMoreElements()) {
            int[] elemArray = ve.nextSetElement().toIntArray();

            for (int elem : elemArray) {
                courseIds.add(elem);
            }
        }

        Set<se.uu.it.cs.recsys.persistence.entity.Course> courseEntities = this.courseRepository
                .findByAutoGenIds(courseIds);

        Set<Course> courseInfoSet = courseEntities.stream().map(course -> {
            Course courseInfo = new Course.Builder().setName(course.getName())
                    .setCredit(course.getCredit().getCredit()).setCode(course.getCode())
                    .setLevel(CourseLevel.ofDBString(course.getLevel().getLevel()))
                    .setTaughtYear(Integer.valueOf(course.getTaughtYear()))
                    .setStartPeriod(Integer.valueOf(course.getStartPeriod()))
                    .setEndPeriod(Integer.valueOf(course.getEndPeriod())).build();

            return courseInfo;
        }).collect(Collectors.toSet());

        result.put(i, courseInfoSet);

        i++;
    }

    return result;
}

---

From source file:software.uncharted.service.ImageService.java

public Set<Image> searchByHistogram(String histogram) {
    // Create a set of all the lsh clusters
    final Set<Image> lshUnions = Sets.newHashSet();
    imageHashers.stream().map(hasher -> hasher.calcLSHstring(histogram))
            .forEach(lsh -> lshUnions.addAll(searchByHash(lsh)));

    // filter to once that have close histograms
    return lshUnions.stream().filter(i -> i.hasSimilarHistogram(histogram)).collect(Collectors.toSet());
}

---

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