Example usage for org.apache.commons.collections4 CollectionUtils isEmpty

List of usage examples for org.apache.commons.collections4 CollectionUtils isEmpty

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Introduction

In this page you can find the example usage for org.apache.commons.collections4 CollectionUtils isEmpty.

Prototype

public static boolean isEmpty(final Collection<?> coll)

Source Link

Document

Null-safe check if the specified collection is empty.

Usage

From source file:com.epam.catgenome.manager.reference.CytobandManager.java

/**
 * Returns {@code Track} with cytobands if they're available for a chromosome with
 * the given ID, otherwise returns <tt>null</tt>.
 *
 * @param chromosomeId {@code Long} represents Chromosome ID which cytobands should
 *                     be loaded//from  w ww .j av a  2  s .  c o m
 * @return {@code Track} describes cytological card if it's available or <tt>null</tt>
 * otherwise
 * @throws IOException will be thrown if any I/O errors occur
 */
public Track<Cytoband> loadCytobands(final Long chromosomeId) throws IOException {
    // loads chromosome data by the given ID
    final Chromosome chromosome = referenceGenomeManager.loadChromosome(chromosomeId);
    // tries to find a file that provides cytobands for the given chromosome
    final File cytobandFile = fileManager.makeCytobandsFile(chromosome);
    if (!cytobandFile.exists()) {
        return null;
    }
    // loads cytobands from a file, skipping validation, because it was done earlier
    final CytobandReader reader = CytobandReader.getInstance(cytobandFile);
    final CytobandRecord record = reader.getRecord(chromosome.getName());
    if (record == null || CollectionUtils.isEmpty(record.getBands())) {
        return null;
    }
    // creates and fills a new track that describes cytobands
    final Track<Cytoband> track = new Track<>(TrackType.CYTOBAND);
    track.setStartIndex(1);
    track.setScaleFactor(1D);
    track.setId(chromosomeId);
    track.setChromosome(chromosome);
    track.setBlocks(record.getBands());
    track.setName(chromosome.getName());
    track.setEndIndex(chromosome.getSize());
    return track;
}

From source file:com.epam.catgenome.dao.gene.GeneFileDao.java

@Transactional(propagation = Propagation.MANDATORY)
public List<GeneFile> loadGeneFiles(Collection<Long> ids) {
    if (CollectionUtils.isEmpty(ids)) {
        return Collections.emptyList();
    }//w ww. j a  v a 2s.  c o  m

    long listId = daoHelper.createTempLongList(ids);
    List<BiologicalDataItem> files = getJdbcTemplate().query(loadGeneFilesQuery,
            BiologicalDataItemDao.BiologicalDataItemParameters.getRowMapper(), listId);

    daoHelper.clearTempList(listId);
    return files.stream().map(f -> (GeneFile) f).collect(Collectors.toList());
}

From source file:com.jkoolcloud.tnt4j.streams.parsers.ActivityRegExParser.java

@Override
public void addField(ActivityField field) {
    List<ActivityFieldLocator> locators = field.getLocators();
    if (CollectionUtils.isEmpty(locators)) {
        return;//from ww w .  ja  v a 2  s  . co m
    }
    List<ActivityFieldLocator> matchLocs = new ArrayList<>();
    List<ActivityFieldLocator> groupLocs = new ArrayList<>();
    for (ActivityFieldLocator locator : locators) {
        ActivityFieldLocatorType locType = locator.getBuiltInType();
        logger().log(OpLevel.DEBUG, StreamsResources.getString(StreamsResources.RESOURCE_BUNDLE_NAME,
                "ActivityParser.adding.field"), field); // Utils.getDebugString(field));
        if (locType == ActivityFieldLocatorType.REMatchNum) {
            if (groupMap.containsKey(field)) {
                throw new IllegalArgumentException(
                        StreamsResources.getStringFormatted(StreamsResources.RESOURCE_BUNDLE_NAME,
                                "ActivityRegExParser.conflicting.mapping", field));
            }
            matchLocs.add(locator);
        } else {
            if (matchMap.containsKey(field)) {
                throw new IllegalArgumentException(
                        StreamsResources.getStringFormatted(StreamsResources.RESOURCE_BUNDLE_NAME,
                                "ActivityRegExParser.conflicting.mapping", field));
            }
            groupLocs.add(locator);
        }
    }
    if (!matchLocs.isEmpty()) {
        matchMap.put(field, matchLocs);
    }
    if (!groupLocs.isEmpty()) {
        groupMap.put(field, groupLocs);
    }
}

From source file:com.romeikat.datamessie.core.base.dao.impl.StatisticsDao.java

public StatisticsSparseTable getStatistics(final SharedSessionContract ssc, final Collection<Long> sourceIds,
        final LocalDate published) {
    if (CollectionUtils.isEmpty(sourceIds) || published == null) {
        return new StatisticsSparseTable();
    }// w  ww. ja  v  a2 s.com

    // Query
    final StringBuilder hql = new StringBuilder();
    hql.append("SELECT s.sourceId, s.state, documents ");
    hql.append("FROM Statistics s ");
    hql.append("WHERE s.sourceId IN :_sourceIds ");
    hql.append("AND s.published = :_published ");
    hql.append("GROUP BY s.sourceId, s.state ");
    final Query<Object[]> query = ssc.createQuery(hql.toString(), Object[].class);
    query.setParameterList("_sourceIds", sourceIds);
    query.setParameter("_published", published);

    // Execute
    final List<Object[]> records = query.list();

    // Postprocess
    final StatisticsSparseTable statistics = new StatisticsSparseTable();
    for (final Object[] record : records) {
        final long sourceId = (Long) record[0];
        final DocumentProcessingState state = (DocumentProcessingState) record[1];
        final long number = (Long) record[2];

        final DocumentsPerState documentsForState = new DocumentsPerState();
        documentsForState.put(state, number);
        statistics.putValue(sourceId, published, documentsForState);
    }

    // Done
    return statistics;
}

From source file:co.runrightfast.incubator.rx.impl.ObservableRingBufferImpl.java

private void onEvent(final RingBufferReference<A> msg, final long sequence, final boolean endOfBatch) {
    if (CollectionUtils.isEmpty(subscribers)) {
        warning.log("onEvent", new LogMessage("message dropped because there are no observers",
                getClass().getName(), sequence));
        return;//from ww w  .  j  av  a2  s  . c  o  m
    }

    for (final Subscriber<? super A> subscriber : subscribers) {
        if (subscriber.isUnsubscribed()) {
            this.subscribers.remove(subscriber);
            continue;
        }
        try {
            subscriber.onNext(msg.data);
        } catch (final Throwable t) {
            subscriber.onError(t);
            this.subscribers.remove(subscriber);
        }
    }

}

From source file:com.jkoolcloud.tnt4j.streams.fields.AbstractFieldEntity.java

/**
 * Transforms provided object value using defined transformations. If more than one transformation defined,
 * transformations are applied sequentially where transformation input data is output of previous transformation.
 *
 * @param fieldValue//from ww  w .  ja  va  2 s  . c o  m
 *            value to transform
 * @return transformed value
 * @throws Exception
 *             if transformation operation fails
 */
public Object transformValue(Object fieldValue) throws Exception {
    if (CollectionUtils.isEmpty(transformations)) {
        return fieldValue;
    }

    Object tValue = fieldValue;
    for (ValueTransformation<Object, Object> vt : transformations) {
        tValue = vt.transform(tValue);
    }

    return tValue;
}

From source file:io.cloudslang.lang.compiler.modeller.transformers.ResultsTransformer.java

private void addResult(List<Result> results, Result element, List<RuntimeException> errors) {
    List<RuntimeException> validationErrors = preCompileValidator.validateNoDuplicateInOutParams(results,
            element);/*from w  w  w .j a  v a  2s. co m*/
    if (CollectionUtils.isEmpty(validationErrors)) {
        results.add(element);
    } else {
        errors.addAll(validationErrors);
    }
}

From source file:io.cloudslang.lang.compiler.modeller.transformers.AbstractOutputsTransformer.java

void addOutput(List<Output> outputs, Output element, List<RuntimeException> errors) {
    List<RuntimeException> validationErrors = preCompileValidator.validateNoDuplicateInOutParams(outputs,
            element);//from   w  w  w .jav  a 2  s.  c  om
    if (CollectionUtils.isEmpty(validationErrors)) {
        outputs.add(element);
    } else {
        errors.addAll(validationErrors);
    }
}

From source file:com.baifendian.swordfish.dao.model.ExecutionNode.java

/**
 *  job link /*  www .j av a 2  s .c  o  m*/
 */
public void addJobLinkList(List<String> jobLinkList) {
    if (jobLinkList == null) {
        return;
    }

    if (CollectionUtils.isEmpty(this.jobLinkList)) {
        setJobLinkList(jobLinkList);
        return;
    }

    this.jobLinkList.addAll(jobLinkList);
    this.jobLinks = JsonUtil.toJsonString(this.jobLinkList);
}

From source file:com.ejisto.event.ApplicationEventDispatcher.java

@SuppressWarnings("unchecked")
private void notifyListenersFor(Class<BaseApplicationEvent> eventClass,
        final BaseApplicationEvent applicationEvent) {
    List<ApplicationListener<? extends BaseApplicationEvent>> listeners = registeredListeners.get(eventClass);
    if (!CollectionUtils.isEmpty(listeners)) {
        for (final ApplicationListener listener : listeners) {
            log.trace("forwarding event to listener " + listener);
            listener.onApplicationEvent(applicationEvent);
        }//from ww w  .ja  v  a 2  s  .c o m
    }
    Class<?> superClass = eventClass.getSuperclass();
    if (superClass != null && BaseApplicationEvent.class.isAssignableFrom(superClass)) {
        notifyListenersFor((Class<BaseApplicationEvent>) eventClass.getSuperclass(), applicationEvent);
    }
}