Example usage for java.util Collection stream

Introduction

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

Prototype

default Stream<E> stream()

Source Link

Document

Returns a sequential Stream with this collection as its source.

Usage

From source file:ch.sdi.report.SdiReporter.java

/**
 * @param aResult//from w  w  w.  j  a v a2s  .  c om
 * @param aProcessFailed
 */
private void appendFailedPersons(StringBuilder aSb, Collection<ReportMsg> aProcessFailed) {
    appendTitle(aSb, "Failed during processing", "-");

    aProcessFailed.stream()
            .filter(msg -> (msg.getKey().equals("FailedPersons")) && msg.getValue() instanceof Collection)
            .map(msg -> Collection.class.cast(msg.getValue())).forEach(list -> appendPersonList(aSb, list));
}

From source file:com.enitalk.configs.DateCache.java

@PostConstruct
public void init() throws ExecutionException {
    Collection<String> ids = finder.teachers();
    if (ids.isEmpty()) {
        logger.warn("No teachers found at all");
        return;/*from  w  ww  . ja v a  2  s.c om*/
    }

    ids.stream().forEach((String i) -> {
        try {
            datesMap().get(i);
        } catch (Exception ex) {
            logger.error(ExceptionUtils.getFullStackTrace(ex));
        }
    });
}

From source file:com.ikanow.aleph2.analytics.storm.services.RemoteStormController.java

/**
 * Merges any number of maps, later maps will overwrite any previous keys e.g. if maps[0].key1=5 and maps[2].key1=12
 * the final map will have key1=12 because it'll overwrite the prior value.
 * /*from   www. j  a v a2s.  com*/
 * Note: This does not use the google library ImmutableMap because they do not support
 * null values and the defaults.yaml this is commonly used to load up has many null values.
 * 
 * @param maps
 * @return
 */
private Map<String, Object> mergeMaps(final Collection<Map<String, Object>> maps) {
    final Map<String, Object> map_to_return = new HashMap<String, Object>();
    maps.stream().forEach(map -> map_to_return.putAll(map));
    return map_to_return;
}

From source file:io.github.moosbusch.lumpi.application.spi.AbstractLumpiApplicationContext.java

protected boolean isValidBeanConfigurationClasses(Collection<Class<?>> beanConfigurationClasses) {
    return beanConfigurationClasses.stream().anyMatch((
            beanConfigurationClass) -> (PivotBeanConfiguration.class.isAssignableFrom(beanConfigurationClass)));
}

From source file:com.ikanow.aleph2.analytics.services.DeduplicationEnrichmentContext.java

/** Called for every new/existing merge
 * @param id_duplicate_map/*  w  w w . ja  v a 2 s  .co m*/
 * @param grouping_key
 */
public void resetMutableState(final Collection<JsonNode> dups, final JsonNode grouping_key) {
    _mutable_state._id_set = dups.stream().map(j -> j.get(AnnotationBean._ID)).filter(id -> null != id)
            .collect(Collectors.toSet());

    _mutable_state._grouping_key = _json_to_grouping_key.apply(grouping_key);
    _mutable_state._num_emitted = 0;
    _mutable_state._manual_ids_to_delete = new LinkedList<JsonNode>();
}

From source file:com.thinkbiganalytics.metadata.jobrepo.nifi.provenance.NifiBulletinExceptionExtractor.java

/**
 * queries for bulletins from component, in the flow file
 *
 * @param processorIds The collection UUID of the flow file to extract the error message from
 * @return a list of bulletin objects that were posted by the component to the flow file
 * @throws NifiConnectionException if cannot query Nifi
 */// w  ww .j a  va2 s  .  c o  m
public List<BulletinDTO> getErrorBulletinsForProcessorId(Collection<String> processorIds, Long afterId)
        throws NifiConnectionException {
    List<BulletinDTO> bulletins;
    try {
        String regexPattern = processorIds.stream().collect(Collectors.joining("|"));
        if (afterId != null && afterId != -1L) {
            bulletins = nifiRestClient.getBulletinsMatchingSource(regexPattern, afterId);
        } else {
            bulletins = nifiRestClient.getBulletinsMatchingSource(regexPattern, null);
        }

        bulletins = nifiRestClient.getProcessorBulletins(regexPattern);
        log.info("Query for {} bulletins returned {} results ", regexPattern, bulletins.size());
        if (bulletins != null && !bulletins.isEmpty()) {
            bulletins = bulletins.stream()
                    .filter(bulletinDTO -> bulletinErrorLevels.contains(bulletinDTO.getLevel().toUpperCase()))
                    .collect(Collectors.toList());
        }

        return bulletins;
    } catch (NifiClientRuntimeException e) {
        if (e instanceof NifiConnectionException) {
            throw e;
        } else {
            log.error("Error getErrorBulletinsForProcessorId {} ,{}  ", processorIds, e.getMessage());
        }
    }
    return null;
}

From source file:grakn.core.server.session.reader.GraknCqlBridgeRecordReader.java

private String makeColumnList(Collection<String> columns) {
    return columns.stream().map(this::quote).collect(Collectors.joining(","));
}

From source file:io.mindmaps.engine.loader.DistributedLoader.java

public void submitBatch(Collection<Var> batch) {
    String batchedString = batch.stream().map(Object::toString).collect(Collectors.joining(";"));

    if (batchedString.length() == 0) {
        return;//  ww  w  . j  a  va  2 s  . c  o m
    }

    HttpURLConnection currentConn = acquireNextHost();
    String query = REST.HttpConn.INSERT_PREFIX + batchedString;

    executePost(currentConn, query);

    int responseCode = getResponseCode(currentConn);
    if (responseCode != REST.HttpConn.HTTP_TRANSACTION_CREATED) {
        throw new HTTPException(responseCode);
    }

    markAsLoading(getResponseBody(currentConn));
    LOG.info("Transaction sent to host: " + hostsArray[currentHost]);

    if (future == null) {
        startCheckingStatus();
    }

    currentConn.disconnect();
}

From source file:io.mindmaps.loader.DistributedLoader.java

public void submitBatch(Collection<Var> batch) {
    String batchedString = batch.stream().map(Object::toString).collect(Collectors.joining(";"));

    if (batchedString.length() == 0) {
        return;/*  w ww  . j a v  a2 s . c om*/
    }

    HttpURLConnection currentConn = acquireNextHost();
    String query = RESTUtil.HttpConn.INSERT_PREFIX + batchedString;

    executePost(currentConn, query);

    int responseCode = getResponseCode(currentConn);
    if (responseCode != RESTUtil.HttpConn.HTTP_TRANSACTION_CREATED) {
        throw new HTTPException(responseCode);
    }

    markAsLoading(getResponseBody(currentConn));
    LOG.info("Transaction sent to host: " + hostsArray[currentHost]);

    if (future == null) {
        startCheckingStatus();
    }

    currentConn.disconnect();
}

From source file:org.trustedanalytics.servicecatalog.unit.ServiceInstancesControllerTest.java

@Test
public void getAllServiceInstances_getInstancesCreatorsFromStore() {
    ServiceInstanceMetadata metadata = new ServiceInstanceMetadata(UUID.randomUUID(), "test-user");
    when(serviceInstanceRegistry.getInstanceCreator(any(UUID.class))).thenReturn(metadata);

    Collection<ServiceInstance> serviceInstances = sut.getAllServiceInstances(SPACE_GUID, null);

    verify(serviceInstanceRegistry, times(serviceInstances.size())).getInstanceCreator(any(UUID.class));
    serviceInstances.stream().allMatch(i -> i.getMetadata().getCreatorName() != null);
    serviceInstances.stream().allMatch(i -> i.getMetadata().getCreatorUUID() != null);
}