Example usage for java.util.stream StreamSupport stream

Introduction

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

Prototype

public static <T> Stream<T> stream(Spliterator<T> spliterator, boolean parallel) 

Source Link

Document

Creates a new sequential or parallel Stream from a Spliterator .

Usage

From source file:com.intuit.wasabi.repository.cassandra.impl.CassandraPagesRepository.java

@Override
public List<PageExperiment> getExperimentsWithoutLabels(Application.Name applicationName, Page.Name pageName) {
    Stream<PageExperimentByAppNamePage> resultList = Stream.empty();
    try {/*from ww w.ja v  a2  s  .  co  m*/
        Result<PageExperimentByAppNamePage> result = pageExperimentIndexAccessor
                .selectBy(applicationName.toString(), pageName.toString());
        resultList = StreamSupport
                .stream(Spliterators.spliteratorUnknownSize(result.iterator(), Spliterator.ORDERED), false);
    } catch (ReadTimeoutException | UnavailableException | NoHostAvailableException e) {
        throw new RepositoryException("Could not retrieve the experiments for applicationName:\""
                + applicationName + "\", page:\"" + pageName, e);
    }

    return resultList.map(t -> {
        PageExperiment.Builder builder = new PageExperiment.Builder(Experiment.ID.valueOf(t.getExperimentId()),
                null, t.isAssign());
        return builder.build();
    }).collect(Collectors.toList());
}

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From source file:org.obiba.mica.dataset.service.CollectedDatasetService.java

public List<DatasetVariable> processVariablesForStudyDataset(StudyDataset dataset,
        Iterable<DatasetVariable> variables) {
    if (!dataset.hasStudyTable()) {
        return Lists.newArrayList(variables);
    }/* ww w  .  j ava 2 s. com*/

    StudyTable studyTable = dataset.getStudyTable();

    BaseStudy study = studyService.findStudy(dataset.getStudyTable().getStudyId());
    Population population = study.findPopulation(studyTable.getPopulationId());

    if (population == null) {
        return Lists.newArrayList(variables);
    }

    int populationWeight = population.getWeight();

    DataCollectionEvent dataCollectionEvent = population
            .findDataCollectionEvent(studyTable.getDataCollectionEventId());

    if (dataCollectionEvent == null) {
        return Lists.newArrayList(variables);
    }

    int dataCollectionEventWeight = dataCollectionEvent.getWeight();

    return StreamSupport.stream(variables.spliterator(), false).map(datasetVariable -> {
        datasetVariable.setPopulationWeight(populationWeight);
        datasetVariable.setDataCollectionEventWeight(dataCollectionEventWeight);

        return datasetVariable;
    }).collect(toList());
}

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From source file:org.talend.dataprep.api.service.FolderAPITest.java

@Test
public void shouldFolderMetadataWithHierarchy() throws Exception {
    // given//w  w w .ja  va2s  .  c om
    //                        HOME
    //              ___________|____________
    //              |                       |
    //             first                  second
    //          ____|____                   |
    //          |        |                  |
    //first child 1   first child 2     second child
    //                                      |
    //                                      |
    //                                  second child child

    createFolder("first", home.getId());
    createFolder("second", home.getId());

    final Folder firstFolder = getFolder(home.getId(), "first");
    final Folder secondFolder = getFolder(home.getId(), "second");
    createFolder("first child one", firstFolder.getId());
    createFolder("first child two", firstFolder.getId());
    createFolder("second child", secondFolder.getId());

    final Folder secondChildFolder = getFolder(secondFolder.getId(), "second child");
    createFolder("second child child", secondChildFolder.getId());

    final Folder firstChildTwo = getFolder(firstFolder.getId(), "first child two");

    // when
    final Response response = given() //
            .expect().statusCode(200).log().ifError()//
            .when() //
            .get("/folders/{id}", firstChildTwo.getId());

    // then
    final FolderInfo infos = mapper.readValue(response.asString(), new TypeReference<FolderInfo>() {
    });
    final List<Folder> hierarchy = StreamSupport.stream(infos.getHierarchy().spliterator(), false)
            .collect(toList());
    assertThat(infos.getFolder(), equalTo(firstChildTwo));
    assertThat(hierarchy, hasSize(2));
    assertThat(hierarchy.get(0).getId(), equalTo(home.getId()));
    assertThat(hierarchy.get(1).getId(), equalTo(firstFolder.getId()));
}

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From source file:org.pentaho.platform.plugin.services.exporter.PentahoPlatformExporter.java

protected void exportMondrianSchemas() {
    log.debug("export mondrian schemas");

    // Get the mondrian catalogs available in the repo
    List<MondrianCatalog> catalogs = getMondrianCatalogService().listCatalogs(getSession(), false);
    for (MondrianCatalog catalog : catalogs) {

        // get the files for this catalog
        Map<String, InputStream> files = getMondrianCatalogRepositoryHelper()
                .getModrianSchemaFiles(catalog.getName());

        ExportManifestMondrian mondrian = new ExportManifestMondrian();
        for (String fileName : files.keySet()) {

            // write the file to the zip
            String path = ANALYSIS_PATH_IN_ZIP + catalog.getName() + "/" + fileName;
            ZipEntry zipEntry = new ZipEntry(new ZipEntry(ExportFileNameEncoder.encodeZipPathName(path)));
            InputStream inputStream = files.get(fileName);

            // ignore *.annotated.xml files, they are not needed
            if (fileName.equals("schema.annotated.xml")) {
                // these types of files only exist for contextual export of a data source (from the UI) to later be imported in.
                // However, in the case of backup/restore we don't need these since we'll be using the annotations.xml file along
                // with the original schema xml file to re-generate the model properly
                continue;
            } else if (MondrianVfs.ANNOTATIONS_XML.equals(fileName)) {
                // annotations.xml should be written to the zip file and referenced in the export manifest entry for the
                // related mondrian model
                mondrian.setAnnotationsFile(path);
            } else {
                // must be a true mondrian model
                mondrian.setCatalogName(catalog.getName());
                boolean xmlaEnabled = parseXmlaEnabled(catalog.getDataSourceInfo());
                mondrian.setXmlaEnabled(xmlaEnabled);
                mondrian.setFile(path);/*ww  w  .  j  ava2s .c o  m*/
                Parameters mondrianParameters = new Parameters();
                mondrianParameters.put("Provider", "mondrian");
                //DataSource can be escaped
                mondrianParameters.put("DataSource", StringEscapeUtils.unescapeXml(catalog.getJndi()));
                mondrianParameters.put("EnableXmla", Boolean.toString(xmlaEnabled));

                StreamSupport.stream(catalog.getConnectProperties().spliterator(), false)
                        .filter(p -> !mondrianParameters.containsKey(p.getKey()))
                        //if value is escaped it should be unescaped to avoid double escape after export in xml file, because
                        //marshaller executes escaping as well
                        .forEach(p -> mondrianParameters.put(p.getKey(),
                                StringEscapeUtils.unescapeXml(p.getValue())));

                mondrian.setParameters(mondrianParameters);
            }

            try {
                zos.putNextEntry(zipEntry);
                IOUtils.copy(inputStream, zos);
            } catch (IOException e) {
                log.warn(e.getMessage(), e);
            } finally {
                IOUtils.closeQuietly(inputStream);
                try {
                    zos.closeEntry();
                } catch (IOException e) {
                    // can't close the entry of input stream
                }
            }
        }
        if (mondrian.getCatalogName() != null && mondrian.getFile() != null) {
            getExportManifest().addMondrian(mondrian);
        }
    }
}

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From source file:com.ikanow.aleph2.management_db.mongodb.services.IkanowV1SyncService_PurgeBuckets.java

/**
 * Returns back all purge sources that aren't marked as complete or errored,
 * deletes everything that was pulled back
 * //w  w  w. j  a  va  2s  .  c om
 * @param source_test_db
 * @return
 */
protected CompletableFuture<List<PurgeQueueBean>> getAllPurgeSources(
        final ICrudService<PurgeQueueBean> source_test_db) {
    final QueryComponent<PurgeQueueBean> get_query = CrudUtils.allOf(PurgeQueueBean.class)
            .whenNot(PurgeQueueBean::status, PurgeStatus.complete)
            .whenNot(PurgeQueueBean::status, PurgeStatus.error); //can be complete | error | in_progress | submitted | {unset/anything else}

    final CompletableFuture<List<PurgeQueueBean>> get_command = source_test_db.getObjectsBySpec(get_query)
            .thenApply(c -> StreamSupport.stream(c.spliterator(), false).collect(Collectors.toList()));

    return get_command.thenCompose(__ -> {
        return source_test_db.deleteObjectBySpec(get_query);
    }).thenApply(__ -> get_command.join()); // (ie return the original command but only once the update has completed)
}

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From source file:org.obiba.mica.dataset.service.HarmonizedDatasetService.java

@Override
public Iterable<DatasetVariable> getDatasetVariables(HarmonizationDataset dataset)
        throws NoSuchValueTableException {
    return StreamSupport.stream(getVariables(dataset).spliterator(), false)
            .map(input -> new DatasetVariable(dataset, input)).collect(toList());
}

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From source file:org.apache.metron.stellar.common.shell.StellarShell.java

/**
 * Handle a magic '%functions'.  Lists all of the variables in-scope.
 * @param expression//w  w w . j  a  va  2 s. c o m
 */
private void handleMagicFunctions(String[] expression) {

    // if '%functions FOO' then show only functions that contain 'FOO'
    Predicate<String> nameFilter = (name -> true);
    if (expression.length > 1) {
        nameFilter = (name -> name.contains(expression[1]));
    }

    // '%functions' -> list all functions in scope
    String functions = StreamSupport
            .stream(executor.getFunctionResolver().getFunctionInfo().spliterator(), false)
            .map(info -> String.format("%s", info.getName())).filter(nameFilter).sorted()
            .collect(Collectors.joining(", "));
    writeLine(functions);
}

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From source file:org.springframework.cloud.gcp.data.spanner.core.SpannerTemplate.java

@Override
public void deleteAll(Iterable objects) {
    applyDeleteMutations(objects, (List<Mutation>) StreamSupport.stream(objects.spliterator(), false)
            .map(this.mutationFactory::delete).collect(Collectors.toList()));
}

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From source file:org.obiba.mica.dataset.service.CollectedDatasetService.java

@Override
public Iterable<DatasetVariable> getDatasetVariables(StudyDataset dataset) {
    if (dataset.hasStudyTable()) {
        return StreamSupport.stream(getVariables(dataset).spliterator(), false)
                .map(input -> new DatasetVariable(dataset, input)).collect(toList());
    }//from  ww  w.  java  2 s.c  om
    return Lists.newArrayList();
}

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From source file:it.qualityGate.QualityGateTest.java

private static List<String> extractPosttaskPluginLogs(String taskUuid, Iterable<String> ceLogs) {
    return StreamSupport.stream(ceLogs.spliterator(), false)
            .filter(s -> s.contains("POSTASKPLUGIN: finished()")).filter(s -> s.contains(taskUuid))
            .collect(Collectors.toList());
}

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