Example usage for java.util Collections EMPTY_SET

List of usage examples for java.util Collections EMPTY_SET

  1. HOME
  2. Java
  3. java
  4. java.util.*
  5. Collections
  6. EMPTY_SET

Introduction

In this page you can find the example usage for java.util Collections EMPTY_SET.

Prototype

Set EMPTY_SET

To view the source code for java.util Collections EMPTY_SET.

Click Source Link

Document

The empty set (immutable).

Usage

From source file:de.hybris.platform.product.impl.DefaultVariantsService.java

/**
 * {@inheritDoc}//from w ww .  j a va2 s .com
 * 
 */
@Override
public Set<String> getVariantAttributes(final String variantProductType) {
    final ComposedTypeModel composedTypeModel = typeService.getComposedTypeForCode(variantProductType);
    if (composedTypeModel instanceof VariantTypeModel) {
        final VariantTypeModel variantTypeModel = (VariantTypeModel) composedTypeModel;
        final Collection<VariantAttributeDescriptorModel> variantAttributtes = getVariantAttributesForVariantType(
                variantTypeModel);
        if (CollectionUtils.isEmpty(variantAttributtes)) {
            return Collections.EMPTY_SET;
        } else {
            final Set<String> ret = new HashSet<String>(variantAttributtes.size());
            for (final VariantAttributeDescriptorModel vad : variantAttributtes) {
                ret.add(vad.getQualifier());
            }
            return ret;
        }
    } else {
        throw new IllegalArgumentException(
                "there is no variant type '" + variantProductType + "'" + (composedTypeModel == null ? ""
                        : " - found composed type (" + composedTypeModel + ") instead"));
    }
}

From source file:org.talend.components.salesforce.tsalesforceinput.TSalesforceInputProperties.java

@Override
protected Set<PropertyPathConnector> getAllSchemaPropertiesConnectors(boolean isOutputConnection) {
    if (isOutputConnection) {
        return Collections.singleton(MAIN_CONNECTOR);
    } else {/*from  w w w  .  ja  va2 s  .  co m*/
        return Collections.EMPTY_SET;
    }
}

From source file:com.espertech.esper.core.service.StatementVariableRefImpl.java

public Set<String> getStatementNamesForVar(String variableName) {
    mapLock.acquireReadLock();/* ww w  . j a va 2 s  .c  om*/
    try {
        Set<String> variables = variableToStmt.get(variableName);
        if (variables == null) {
            return Collections.EMPTY_SET;
        }
        return Collections.unmodifiableSet(variables);
    } finally {
        mapLock.releaseReadLock();
    }
}

From source file:org.forgerock.openam.authentication.modules.deviceprint.DevicePrintModule.java

/**
 * Gets the user's AMIdentity from LDAP.
 *
 * @param userName The user's name./*from  w ww  .  j  a v a2  s.  com*/
 * @return The AMIdentity for the user.
 */
public AMIdentity getIdentity(String userName) {
    AMIdentity amIdentity = null;
    AMIdentityRepository amIdRepo = getAMIdentityRepository(getRequestOrg());

    IdSearchControl idsc = new IdSearchControl();
    idsc.setAllReturnAttributes(true);
    Set<AMIdentity> results = Collections.EMPTY_SET;

    try {
        idsc.setMaxResults(0);
        IdSearchResults searchResults = amIdRepo.searchIdentities(IdType.USER, userName, idsc);
        if (searchResults != null) {
            results = searchResults.getSearchResults();
        }

        if (results == null || results.size() != 1) {
            throw new IdRepoException("getIdentity : More than one user found");
        }

        amIdentity = results.iterator().next();
    } catch (IdRepoException e) {
        DEBUG.error("Error searching Identities with username : " + userName, e);
    } catch (SSOException e) {
        DEBUG.error("Module exception : ", e);
    }

    return amIdentity;
}

From source file:pt.ist.expenditureTrackingSystem.domain.announcements.SearchAnnouncementProcess.java

@Override
public Set<AnnouncementProcess> search() {
    try {//from  w  w w. j  a  v  a 2 s.c o  m
        return hasAnyCriteria()
                ? new SearchAnnouncementResult(GenericProcess.getAllProcesses(AnnouncementProcess.class))
                : Collections.EMPTY_SET;
    } catch (Exception ex) {
        ex.printStackTrace();
        throw new Error(ex);
    }
}

From source file:org.aika.experiments.CorpusIndividualWordTrainingTest.java

@Test
public void testTraining() throws IOException {
    Node.minFrequency = 3;/*  ww  w . j ava 2 s .  c o m*/

    String[] files = new String[] { "Aschenputtel"
            /*                "BruederchenUndSchwesterchen",
                            "DasTapfereSchneiderlein",
                            "DerFroschkoenig",
                            "DerGestiefelteKater",
                            "DerGoldeneSchluessel",
                            "DerSuesseBrei",
                            "DerTeufelMitDenDreiGoldenenHaaren",
                            "DerWolfUndDieSiebenJungenGeisslein",
                            "DieBremerStadtmusikanten",
                            "DieDreiFedern",
                            "DieSterntaler",
                            "DieWeisseSchlange",
                            "DieZwoelfBrueder",
                            "Dornroeschen",
                            "FrauHolle",
                            "HaenselUndGretel",
                            "HansImGlueck",
                            "JorindeUndJoringel",
                            "KatzeUndMausInGesellschaft",
                            "MaerchenVonEinemDerAuszogDasFuerchtenZuLernen",
                            "Marienkind",
                            "Rapunzel",
                            "Rotkaeppchen",
                            "Rumpelstilzchen",
                            "SchneeweisschenUndRosenrot",
                            "Schneewitchen",
                            "TischleinDeckDich",
                            "VonDemFischerUndSeinerFrau"*/
    };

    TreeSet<Document> inputs = new TreeSet<>();

    for (String fn : files) {
        File f = new File("./src/test/resources/text/maerchen/" + fn + ".txt");
        InputStream is = new FileInputStream(f);
        StringWriter writer = new StringWriter();
        IOUtils.copy(is, writer, "UTF-8");
        String txt = writer.toString();

        txt = txt.replace("\"", "");
        txt = txt.replace(",", "");
        txt = txt.replace(".", "");
        txt = txt.replace("\n", " ");
        txt = txt.replace("", " ");
        txt = txt.replace("", " ");
        txt = txt.replace("?", " ");
        txt = txt.replace("!", " ");
        txt = txt.replace(":", " ");
        txt = txt.replace(";", " ");
        txt = txt.replace("-", " ");
        txt = txt.replace("  ", " ");

        int i = 0;
        for (String w : txt.split(" ")) {
            Document doc = new Document(f + "-" + (i++));
            doc.setContent(" " + w + " ");
            PrepareSimpleCharacterProperties.run(doc);
            inputs.add(doc);

            //            if(i == 2) break;
        }
    }
    PredefinedRules pr = new PredefinedRules();
    pr.addRules();
    Neuron.createOrNeuron(pr.lateSE, Collections.EMPTY_SET);

    Network.run(inputs);
}

From source file:org.hyperledger.fabric.sdk.NetworkConfig.java

/**
 * Names of Peers found//w  w w. j av  a  2  s  .  c o m
 *
 * @return Collection of peer names found.
 */
public Collection<String> getPeerNames() {
    if (peers == null) {
        return Collections.EMPTY_SET;
    } else {
        return new HashSet<>(peers.keySet());
    }
}

From source file:org.codehaus.mojo.mrm.impl.maven.MemoryArtifactStore.java

/**
 * {@inheritDoc}// www . j a  v a2 s  . c o m
 */
public synchronized Set getArtifactIds(String groupId) {
    Map artifactMap = (Map) contents.get(groupId);
    return new TreeSet(artifactMap == null ? Collections.EMPTY_SET : artifactMap.keySet());
}

From source file:org.stockwatcher.web.StockController.java

@RequestMapping(value = "/{symbol}", method = RequestMethod.GET)
public String displayStockDetail(@PathVariable String symbol, Model model, HttpServletRequest request) {
    model.addAttribute("stock", dao.getStockBySymbol(symbol));
    Date tradeDate = applicationProps.getLastTradeDate();
    SortedSet<Trade> trades = dao.getTradesBySymbolAndDate(symbol, tradeDate);
    model.addAttribute("trades", getUniqueTrades(trades));
    long elapsedTime = trades.size() == 0 ? 0
            : getElapsedTime(trades.first().getTimestamp(), trades.last().getTimestamp());
    User user = (User) request.getSession().getAttribute("user");
    model.addAttribute("watchLists",
            user == null ? Collections.EMPTY_SET : watchListDao.getWatchListsByUserId(user.getId()));
    model.addAttribute("lastClosePrice", dao.getLastClosePriceForSymbol(symbol));
    model.addAttribute("elapsedTime", elapsedTime);
    model.addAttribute("liveTrading", applicationProps.isTradingLive());
    model.addAttribute("watchCount", watchListDao.getWatchCount(symbol));
    dao.incrementStockViewCount(symbol);
    return "stock";
}

From source file:org.flite.cach3.aop.LogicalCacheImplTest.java

@Test
public void testWarnings() {
    final String prefix = "testWarnings-";

    final Set<String> putIds = new HashSet<String>();
    final Map<String, Object> data = new HashMap<String, Object>();
    final Set<String> missIds = new HashSet<String>();

    final List<Duration> allDurations = new ArrayList<Duration>(LogicalCacheImpl.DURATION_SET);
    Collections.shuffle(allDurations);
    final Duration target = allDurations.get(0);

    for (int ix = 0; ix < 10; ix++) {
        final String key = prefix + RandomStringUtils.randomAlphanumeric(10 + ix);
        putIds.add(key);/*w  w  w  . ja  v  a 2 s . c  om*/
        data.put(key, RandomStringUtils.randomAlphabetic(12 + ix));
        missIds.add(prefix + RandomStringUtils.randomAlphanumeric(10 + ix));
    }

    // To start with, NONE should be in the list, so they should all miss.
    for (final Duration duration : LogicalCacheImpl.DURATION_SET) {
        AssertJUnit.assertEquals(0, impl.checkIdsForDuplication(putIds, duration).size());
        AssertJUnit.assertEquals(0, impl.checkIdsForDuplication(missIds, duration).size());

        AssertJUnit.assertNull(impl.warnOfDuplication(putIds, duration));
        AssertJUnit.assertNull(impl.warnOfDuplication(missIds, duration));
    }

    // Put the data in the list for the first time
    impl.setBulk(data, target);

    // Check for misses.
    for (final Duration duration : LogicalCacheImpl.DURATION_SET) {
        if (duration == target) {
            continue;
        }
        AssertJUnit.assertEquals(0, impl.checkIdsForDuplication(missIds, duration).size());
        AssertJUnit.assertNull(impl.warnOfDuplication(missIds, duration));
    }

    // Check for expected duplication warnings.
    for (final Duration duration : LogicalCacheImpl.DURATION_SET) {
        if (duration == target) {
            continue;
        }
        final Set<String> notifyIds = impl.checkIdsForDuplication(putIds, duration);
        AssertJUnit.assertNotNull(notifyIds);
        //            System.out.println(notifyIds);
        AssertJUnit.assertEquals(putIds.size(), notifyIds.size());
        final String warningText = impl.warnOfDuplication(putIds, duration);
        //            System.out.println(warningText);
        AssertJUnit.assertNotNull(warningText);
        for (final String id : putIds) {
            AssertJUnit.assertTrue(warningText.contains(id));
        }
    }

    // And test the last little pre-expectations
    AssertJUnit.assertEquals(0, impl.checkIdsForDuplication(null, Duration.ONE_MINUTE).size());
    AssertJUnit.assertEquals(0, impl.checkIdsForDuplication(Collections.EMPTY_SET, Duration.ONE_MINUTE).size());
    AssertJUnit.assertNull(impl.warnOfDuplication(null, Duration.FIVE_MINUTES));
    AssertJUnit.assertNull(impl.warnOfDuplication(Collections.EMPTY_LIST, Duration.FIVE_MINUTES));
}