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

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.dao.index.FeatureIndexDao.java

public Set<String> searchGenesInVcfFiles(String gene, List<VcfFile> vcfFiles) throws IOException {
    if (CollectionUtils.isEmpty(vcfFiles)) {
        return Collections.emptySet();
    }/*from   www .j a  v a  2s.c om*/

    BooleanQuery.Builder builder = new BooleanQuery.Builder();

    PrefixQuery geneIdPrefixQuery = new PrefixQuery(
            new Term(FeatureIndexFields.GENE_ID.getFieldName(), gene.toLowerCase()));
    PrefixQuery geneNamePrefixQuery = new PrefixQuery(
            new Term(FeatureIndexFields.GENE_NAME.getFieldName(), gene.toLowerCase()));
    BooleanQuery.Builder geneIdOrNameQuery = new BooleanQuery.Builder();
    geneIdOrNameQuery.add(geneIdPrefixQuery, BooleanClause.Occur.SHOULD);
    geneIdOrNameQuery.add(geneNamePrefixQuery, BooleanClause.Occur.SHOULD);

    builder.add(geneIdOrNameQuery.build(), BooleanClause.Occur.MUST);
    BooleanQuery query = builder.build();

    Set<String> geneIds;

    SimpleFSDirectory[] indexes = fileManager.getIndexesForFiles(vcfFiles);

    try (MultiReader reader = openMultiReader(indexes)) {
        if (reader.numDocs() == 0) {
            return Collections.emptySet();
        }

        IndexSearcher searcher = new IndexSearcher(reader);
        final TopDocs docs = searcher.search(query, reader.numDocs());
        final ScoreDoc[] hits = docs.scoreDocs;

        geneIds = fetchGeneIds(hits, searcher);
    } catch (IOException e) {
        LOGGER.error(MessageHelper.getMessage(MessagesConstants.ERROR_FEATURE_INDEX_SEARCH_FAILED), e);
        return Collections.emptySet();
    }

    return geneIds;
}

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From source file:cgeo.geocaching.CacheListActivity.java

private void checkIfEmptyAndRemoveAfterConfirm() {
    final boolean isNonDefaultList = isConcreteList() && listId != StoredList.STANDARD_LIST_ID;
    // Check local cacheList first, and Datastore only if needed (because of filtered lists)
    // Checking is done in this order for performance reasons
    if (isNonDefaultList && CollectionUtils.isEmpty(cacheList)
            && DataStore.getAllStoredCachesCount(CacheType.ALL, listId) == 0) {
        // ask user, if he wants to delete the now empty list
        Dialogs.confirmYesNo(this, R.string.list_dialog_remove_title, R.string.list_dialog_remove_nowempty,
                new DialogInterface.OnClickListener() {
                    @Override/*from www.  j av a2  s .com*/
                    public void onClick(final DialogInterface dialog, final int whichButton) {
                        removeListInternal();
                    }
                });
    }
}

---

From source file:com.jkoolcloud.tnt4j.streams.configure.sax.ConfigParserHandler.java

/**
 * Processes a {@code <field-map-ref>} element.
 *
 * @param attrs/* w  w w .j  a v a2s.  c o m*/
 *            List of element attributes
 *
 * @throws SAXException
 *             if error occurs parsing element
 */
@SuppressWarnings("unchecked")
private void processFieldMapReference(Attributes attrs) throws SAXException {
    if (currField == null) {
        throw new SAXParseException(StreamsResources.getStringFormatted(StreamsResources.RESOURCE_BUNDLE_NAME,
                "ConfigParserHandler.malformed.configuration3", FIELD_MAP_REF_ELMT, FIELD_ELMT, FIELD_LOC_ELMT),
                currParseLocation);
    }

    if (CollectionUtils.isEmpty(currField.getLocators()) && currLocatorData == null) {
        throw new SAXException(StreamsResources.getStringFormatted(StreamsResources.RESOURCE_BUNDLE_NAME,
                "ConfigParserHandler.element.no.binding", FIELD_MAP_REF_ELMT, FIELD_LOC_ELMT,
                getLocationInfo()));
    }

    String reference = null;
    for (int i = 0; i < attrs.getLength(); i++) {
        String attName = attrs.getQName(i);
        String attValue = attrs.getValue(i);
        if (RESOURCE_ATTR.equals(attName)) {
            reference = attValue;
        }
    }

    notEmpty(reference, FIELD_MAP_REF_ELMT, RESOURCE_ATTR);

    Object val = Utils.getMapValueByPath(reference, resourcesMap);

    if (val instanceof Map) {
        AttributesImpl mappingAttrs = new AttributesImpl();
        for (Map.Entry<String, ?> entry : ((Map<String, ?>) val).entrySet()) {
            mappingAttrs.clear();
            mappingAttrs.addAttribute(null, null, SOURCE_ATTR, null, entry.getKey());
            mappingAttrs.addAttribute(null, null, TARGET_ATTR, null, String.valueOf(entry.getValue()));

            processFieldMap(mappingAttrs);
        }
    }
}

---

From source file:com.haulmont.cuba.desktop.gui.components.DesktopWindow.java

@Override
public void removeStyleName(String styleName) {
    if (StringUtils.isEmpty(styleName) || CollectionUtils.isEmpty(styles) || !styles.contains(styleName))
        return;//from w w w . j  a v  a  2 s.c  om

    StringTokenizer tokenizer = new StringTokenizer(styleName, " ");
    while (tokenizer.hasMoreTokens()) {
        styles.remove(tokenizer.nextToken());
    }
}

---

From source file:cgeo.geocaching.CacheListActivity.java

private boolean cacheToShow() {
    if (search == null || CollectionUtils.isEmpty(cacheList)) {
        showToast(res.getString(R.string.warn_no_cache_coord));
        return false;
    }//ww w.j ava2s .  c o  m
    return true;
}

---

From source file:cgeo.geocaching.CacheListActivity.java

private void showFooterMoreCaches() {
    // no footer in offline lists
    if (listFooter == null) {
        return;/*from ww  w  . j av a 2  s .  co  m*/
    }

    boolean enableMore = type != CacheListType.OFFLINE && cacheList.size() < MAX_LIST_ITEMS;
    if (enableMore && search != null) {
        final int count = search.getTotalCountGC();
        enableMore = count > 0 && cacheList.size() < count;
    }

    listFooter.setClickable(enableMore);
    if (enableMore) {
        listFooterText.setText(res.getString(R.string.caches_more_caches) + " ("
                + res.getString(R.string.caches_more_caches_currently) + ": " + cacheList.size() + ")");
        listFooter.setOnClickListener(new MoreCachesListener());
    } else if (type != CacheListType.OFFLINE) {
        listFooterText.setText(res.getString(CollectionUtils.isEmpty(cacheList) ? R.string.caches_no_cache
                : R.string.caches_more_caches_no));
        listFooter.setOnClickListener(null);
    } else {
        // hiding footer for offline list is not possible, it must be removed instead
        // http://stackoverflow.com/questions/7576099/hiding-footer-in-listview
        getListView().removeFooterView(listFooter);
    }
}

---

From source file:com.haulmont.cuba.web.gui.components.WebDataGrid.java

protected List<SortOrder> convertToDataGridSortOrder(List<com.vaadin.data.sort.SortOrder> gridSortOrder) {
    if (CollectionUtils.isEmpty(gridSortOrder)) {
        return Collections.emptyList();
    }//from  w ww.  ja  v  a 2s  .c o  m

    return gridSortOrder.stream().map(sortOrder -> {
        Column column = getColumnByPropertyId(sortOrder.getPropertyId());
        return new SortOrder(column != null ? column.getId() : null,
                convertToDataGridSortDirection(sortOrder.getDirection()));
    }).collect(Collectors.toList());
}

---

From source file:cgeo.geocaching.CacheListActivity.java

private void removeList() {
    // if there are no caches on this list, don't bother the user with questions.
    // there is no harm in deleting the list, he could recreate it easily
    if (CollectionUtils.isEmpty(cacheList)) {
        removeListInternal();//from   ww w . j ava2 s.  co m
        return;
    }

    // ask him, if there are caches on the list
    Dialogs.confirm(this, R.string.list_dialog_remove_title, R.string.list_dialog_remove_description,
            R.string.list_dialog_remove, new DialogInterface.OnClickListener() {
                @Override
                public void onClick(final DialogInterface dialog, final int whichButton) {
                    removeListInternal();
                }
            });
}

---

From source file:com.jkoolcloud.tnt4j.streams.configure.sax.ConfigParserHandler.java

private void validateActivityField(ActivityField aField, String qName) throws SAXException {
    if (CollectionUtils.isEmpty(aField.getLocators())) {
        throw new SAXException(StreamsResources.getStringFormatted(StreamsResources.RESOURCE_BUNDLE_NAME,
                "ConfigParserHandler.element.must.have", qName, LOCATOR_ATTR, VALUE_ATTR, FIELD_LOC_ELMT,
                getLocationInfo()));/*w  w w .  jav a 2  s  .c  o  m*/
    }

    List<String> dynamicLocators = new ArrayList<>();
    Utils.resolveCfgVariables(dynamicLocators, aField.getFieldTypeName(), aField.getValueType());

    for (String dLoc : dynamicLocators) {
        if (!aField.hasDynamicLocator(dLoc)) {
            throw new SAXException(StreamsResources.getStringFormatted(StreamsResources.RESOURCE_BUNDLE_NAME,
                    "ConfigParserHandler.element.ref.missing", qName, FIELD_LOC_ELMT, dLoc, getLocationInfo()));
        }
    }
}

---

From source file:org.apache.nifi.audit.SnippetAuditor.java

/**
 * Audits the specified snippet.//from w  w w  .  j a v  a  2  s  . c om
 */
private void auditSnippet(final FlowSnippetDTO snippet) {
    final Collection<Action> actions = new ArrayList<>();
    final Date timestamp = new Date();

    // input ports
    for (final PortDTO inputPort : snippet.getInputPorts()) {
        actions.add(generateAuditRecord(inputPort.getId(), inputPort.getName(), Component.InputPort,
                Operation.Add, timestamp));
    }

    // output ports
    for (final PortDTO outputPort : snippet.getOutputPorts()) {
        actions.add(generateAuditRecord(outputPort.getId(), outputPort.getName(), Component.OutputPort,
                Operation.Add, timestamp));
    }

    // remote processor groups
    for (final RemoteProcessGroupDTO remoteProcessGroup : snippet.getRemoteProcessGroups()) {
        FlowChangeRemoteProcessGroupDetails remoteProcessGroupDetails = new FlowChangeRemoteProcessGroupDetails();
        remoteProcessGroupDetails.setUri(remoteProcessGroup.getTargetUri());

        final FlowChangeAction action = generateAuditRecord(remoteProcessGroup.getId(),
                remoteProcessGroup.getName(), Component.RemoteProcessGroup, Operation.Add, timestamp);
        action.setComponentDetails(remoteProcessGroupDetails);
        actions.add(action);
    }

    // processor groups
    for (final ProcessGroupDTO processGroup : snippet.getProcessGroups()) {
        actions.add(generateAuditRecord(processGroup.getId(), processGroup.getName(), Component.ProcessGroup,
                Operation.Add, timestamp));
    }

    // processors
    for (final ProcessorDTO processor : snippet.getProcessors()) {
        final FlowChangeExtensionDetails processorDetails = new FlowChangeExtensionDetails();
        processorDetails.setType(StringUtils.substringAfterLast(processor.getType(), "."));

        final FlowChangeAction action = generateAuditRecord(processor.getId(), processor.getName(),
                Component.Processor, Operation.Add, timestamp);
        action.setComponentDetails(processorDetails);
        actions.add(action);
    }

    // funnels
    for (final FunnelDTO funnel : snippet.getFunnels()) {
        actions.add(generateAuditRecord(funnel.getId(), StringUtils.EMPTY, Component.Funnel, Operation.Add,
                timestamp));
    }

    // connections
    for (final ConnectionDTO connection : snippet.getConnections()) {
        final ConnectableDTO source = connection.getSource();
        final ConnectableDTO destination = connection.getDestination();

        // determine the relationships and connection name
        final String relationships = CollectionUtils.isEmpty(connection.getSelectedRelationships())
                ? StringUtils.EMPTY
                : StringUtils.join(connection.getSelectedRelationships(), ", ");
        final String name = StringUtils.isBlank(connection.getName()) ? relationships : connection.getName();

        // create the connect details
        FlowChangeConnectDetails connectDetails = new FlowChangeConnectDetails();
        connectDetails.setSourceId(source.getId());
        connectDetails.setSourceName(source.getName());
        connectDetails.setSourceType(determineConnectableType(source));
        connectDetails.setRelationship(relationships);
        connectDetails.setDestinationId(destination.getId());
        connectDetails.setDestinationName(destination.getName());
        connectDetails.setDestinationType(determineConnectableType(destination));

        // create the audit record
        final FlowChangeAction action = generateAuditRecord(connection.getId(), name, Component.Connection,
                Operation.Connect, timestamp);
        action.setActionDetails(connectDetails);
        actions.add(action);
    }

    // save the actions
    if (!actions.isEmpty()) {
        saveActions(actions, logger);
    }
}

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