Example usage for java.util Collections EMPTY_SET

Introduction

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

Prototype

Set EMPTY_SET

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Document

The empty set (immutable).

Usage

From source file:br.com.suricattus.surispring.spring.security.util.SecurityUtil.java

/**
 * List user authorities.//from   w ww  . ja  v  a  2  s. c  o  m
 *  
 * @return user authorities
 */
@SuppressWarnings("unchecked")
public static Set<String> getUserAuthorities() {
    if (SecurityContextHolder.getContext() == null)
        return Collections.EMPTY_SET;

    Authentication currentUser = SecurityContextHolder.getContext().getAuthentication();
    if (currentUser == null)
        return Collections.EMPTY_SET;

    Collection<? extends GrantedAuthority> grantedAauthorities = currentUser.getAuthorities();
    if (grantedAauthorities == null || grantedAauthorities.isEmpty())
        return Collections.EMPTY_SET;

    Set<String> authorities = new TreeSet<String>();
    for (GrantedAuthority ga : grantedAauthorities)
        authorities.add(ga.getAuthority());
    return authorities;
}

---

From source file:org.polymap.rhei.field.PicklistFormField.java

public Control createControl(Composite parent, IFormToolkit toolkit) {
    int comboStyle = SWT.DROP_DOWN;
    comboStyle = !textEditable ? comboStyle | SWT.READ_ONLY : comboStyle & ~SWT.READ_ONLY;
    combo = toolkit.createCombo(parent, Collections.EMPTY_SET, comboStyle | SWT.MULTI);

    ///*  www.ja  v  a 2 s  .  c om*/
    for (ModifyListener l : modifyListeners) {
        combo.addModifyListener(l);
    }

    // add values
    fillCombo();

    // modify listener
    combo.addModifyListener(new ModifyListener() {
        public void modifyText(ModifyEvent ev) {
            Object value = getValue();
            log.debug("modifyEvent(): combo= " + combo.getText() + ", value= " + value);

            if (forceTextMatch && combo.getText().length() > 0 && value == null) {
                site.setErrorMessage("Wert entspricht keiner der Vorgaben: " + combo.getText());
            } else {
                site.setErrorMessage(null);
            }
            // null ist not allowed as text of the combo, so if the loadedValue was null,
            // then map "" value to null; otherwise the world would see that value as changed
            if (value != null && value.equals("") && loadedValue == null) {
                value = null;
            }
            site.fireEvent(PicklistFormField.this, IFormFieldListener.VALUE_CHANGE, value);
        }
    });
    // selection listener
    combo.addSelectionListener(new SelectionListener() {
        public void widgetSelected(SelectionEvent ev) {
            log.debug("widgetSelected(): selectionIndex= " + combo.getSelectionIndex());

            int i = 0;
            for (String label : values.get().keySet()) {
                if (i++ == combo.getSelectionIndex()) {
                    combo.setText(label);
                    break;
                }
            }
            Object value = values.get().get(combo.getText());
            site.fireEvent(PicklistFormField.this, IFormFieldListener.VALUE_CHANGE, value);
        }

        public void widgetDefaultSelected(SelectionEvent ev) {
        }
    });

    // focus listener
    combo.addFocusListener(new FocusListener() {
        public void focusLost(FocusEvent event) {
            //                combo.setBackground( FormEditorToolkit.textBackground );
            site.fireEvent(this, IFormFieldListener.FOCUS_LOST, combo.getText());
        }

        public void focusGained(FocusEvent event) {
            //                combo.setBackground( FormEditorToolkit.textBackgroundFocused );
            site.fireEvent(this, IFormFieldListener.FOCUS_GAINED, combo.getText());
        }
    });

    return combo;
}

---

From source file:br.ufal.cideei.soot.instrument.FeatureModelInstrumentorTransformer.java

@Override
protected void internalTransform(Body body, String phase, Map options) {
    preTransform(body);// w  w w. ja v a2s  . c om

    // #ifdef METRICS
    long startTransform = System.nanoTime();
    // #endif

    /*
     * Iterate over all units, look up for their colors and add a new FeatureTag to each of them, and also compute
     * all the colors found in the whole body. Units with no colors receive an empty FeatureTag.
     */
    Iterator<Unit> unitIt = body.getUnits().iterator();

    /*
     * After the following loop, allPresentFeatures will hold all the colors found in the body. Used to calculate a
     * "local" power set.
     */
    Set<String> allPresentFeatures = new HashSet<String>();

    /*
     * The set of features are represented as bits, for a more compact representation. The mapping between a feature
     * and it's ID is stored in the FeatureTag of the body.
     * 
     * This is necessary so that clients, such as r.d. analysis, can safely iterate over all configurations without
     * explicitly invoking Set operations like containsAll();
     * 
     * TODO: check redundancy between allPresentFeatures & allPresentFeaturesId
     */

    // String->Integer
    BidiMap allPresentFeaturesId = new DualHashBidiMap();
    FeatureTag emptyFeatureTag;
    // #ifdef LAZY
    BitVectorFeatureRep emptyBitVectorRep = new BitVectorFeatureRep(Collections.EMPTY_SET,
            allPresentFeaturesId);
    emptyFeatureTag = new FeatureTag(emptyBitVectorRep);

    // #else
    //@      emptyFeatureTag = new FeatureTag(new BitFeatureRep(Collections.EMPTY_SET, allPresentFeaturesId));
    //@
    // #endif

    // #ifdef LAZY
    /*
     * in the lazy approach, the representation can only be consolidate after all features have been discovery. All
     * IFeatureRep will stored so that it is possible to consolidate later.
     */
    List<BitVectorFeatureRep> generateVectorLater = new ArrayList<BitVectorFeatureRep>();
    // #endif

    int idGen = 1;
    while (unitIt.hasNext()) {
        Unit nextUnit = unitIt.next();
        SourceLnPosTag lineTag = (SourceLnPosTag) nextUnit.getTag("SourceLnPosTag");
        if (lineTag == null) {
            nextUnit.addTag(emptyFeatureTag);
        } else {
            int unitLine = lineTag.startLn();
            Set<String> nextUnitColors = currentColorMap.get(unitLine);
            if (nextUnitColors != null) {

                for (String color : nextUnitColors) {
                    if (!allPresentFeaturesId.containsKey(color)) {
                        allPresentFeaturesId.put(color, idGen);
                        idGen = idGen << 1;
                    }
                }
                /*
                 * increment local powerset with new found colors.
                 */
                allPresentFeatures.addAll(nextUnitColors);

                IFeatureRep featRep;
                FeatureTag featureTag;
                // #ifdef LAZY
                featRep = new BitVectorFeatureRep(nextUnitColors, allPresentFeaturesId);
                generateVectorLater.add((BitVectorFeatureRep) featRep);
                featureTag = new FeatureTag(featRep);
                nextUnit.addTag(featureTag);
                // #else
                //@               
                //@                featRep = new BitFeatureRep(nextUnitColors, allPresentFeaturesId);
                //@               
                // #endif
                featureTag = new FeatureTag(featRep);
                nextUnit.addTag(featureTag);
            } else {
                nextUnit.addTag(emptyFeatureTag);
            }
        }
    }
    UnmodifiableBidiMap unmodAllPresentFeaturesId = (UnmodifiableBidiMap) UnmodifiableBidiMap
            .decorate(allPresentFeaturesId);

    // #ifdef LAZY
    /*
     * generate vectors
     */

    for (BitVectorFeatureRep featureRep : generateVectorLater) {
        featureRep.generateBitVector(idGen);
    }
    // #endif

    // #ifdef METRICS
    long transformationDelta = System.nanoTime() - startTransform;
    if (sink != null) {
        sink.flow(body, FeatureModelInstrumentorTransformer.INSTRUMENTATION, transformationDelta);
    }
    FeatureModelInstrumentorTransformer.transformationTime += transformationDelta;
    // #endif

    ConfigTag configTag;

    // #ifdef LAZY

    BitVectorConfigRep localConfigurations = BitVectorConfigRep.localConfigurations(idGen,
            unmodAllPresentFeaturesId
    // #ifdef FEATUREMODEL
    //@            , checker
    // #endif
    );
    emptyBitVectorRep.generateBitVector(idGen);

    Set<IConfigRep> lazyConfig = new HashSet<IConfigRep>();
    lazyConfig.add(localConfigurations);
    configTag = new ConfigTag(lazyConfig);
    body.addTag(configTag);

    // #else
    //@      
    //@      configTag = new ConfigTag(BitConfigRep.localConfigurations(idGen, unmodAllPresentFeaturesId
    // #ifdef FEATUREMODEL
    //@      , checker
    // #endif
    //@      ).getConfigs());
    //@      body.addTag(configTag);
    //@      
    // #endif
}

---

From source file:org.apache.james.protocols.pop3.core.UidlCmdHandler.java

/**
 * @see org.apache.james.pop3server.core.CapaCapability#getImplementedCapabilities(org.apache.james.pop3server.POP3Session)
 *//*from   w w w .  ja  va2s  . c om*/
@SuppressWarnings("unchecked")
public Set<String> getImplementedCapabilities(POP3Session session) {
    if (session.getHandlerState() == POP3Session.TRANSACTION) {
        return CAPS;
    } else {
        return Collections.EMPTY_SET;
    }
}

---

From source file:org.mule.module.pubsubhubbub.data.DataStore.java

private synchronized void removeFromSet(final Serializable key, final Serializable value, final String domain) {
    // not atomic :(
    @SuppressWarnings("unchecked")
    final Set<Serializable> values = (Set<Serializable>) retrieve(key, domain,
            (Serializable) Collections.EMPTY_SET);

    if (values.isEmpty()) {
        return;/*from  www . ja v  a 2  s .c  om*/
    }

    values.remove(value);

    store(key, (Serializable) values, domain);
}

---

From source file:com.adobe.ags.curly.test.ErrorBehaviorTest.java

@Test
public void testHalt() throws IOException, ParseException {
    ApplicationState.getInstance().errorBehaviorProperty().set(ErrorBehavior.HALT);
    Action fail1 = failureAction();
    Action fail2 = failureAction();
    List<Action> actions = Arrays.asList(fail1, fail2);
    ActionGroupRunner runner = new ActionGroupRunner("Action Halt Test", ignore -> client, actions,
            Collections.EMPTY_MAP, Collections.EMPTY_SET);
    runner.run();//from ww w  .  ja  v a 2s .c om
    assertResults(runner.getResult(), false, false);
    assertFalse(ApplicationState.getInstance().runningProperty().get());
}

---

From source file:org.xcmis.search.query.content.AbstractQueryTest.java

/**
 * Set-up the configuration values used for the test. Per default retrieves a
 * session, configures testRoot, and nodetype and checks if the query
 * language for the current language is available.<br>
 *///  w  w  w. j  a v a 2 s .c o m
@Before
public void setUp() throws Exception {

    tempDir = new File(System.getProperty("java.io.tmpdir"), "search-service");
    if (tempDir.exists()) {
        assertThat(FileUtils.deleteQuietly(tempDir), is(true));
    }
    assertThat(tempDir.mkdirs(), is(true));

    Builder schemaBuilder = InMemorySchema.createBuilder();
    schema = schemaBuilder.addTable(rootNodeType, propertyName1, propertyName2)
            .addTable(testNodeType, new String[] { propertyName4 })
            .addColumn(testNodeType, propertyName1, PropertyType.STRING, true, Operator.ALL)
            .addColumn(testNodeType, propertyName2, PropertyType.STRING, true, Operator.ALL)
            .addTable(testNodeType2, propertyName4).build();
    qf = new QueryBuilder(mock(CastSystem.class));

    testRootNode = new Node(null, "", new String[] { rootNodeType }, UUID.randomUUID().toString(),
            new String[] { Node.ROOT_PARENT_UUID }, new Property[0]);

    //testRoot = testRootNode.getPath();

    //value
    NameConverter<String> nameConverter = new ToStringNameConverter();
    SchemaTableResolver tableResolver = new SchemaTableResolver(nameConverter, schema);

    //index configuration
    IndexConfiguration indexConfuration = new IndexConfiguration(testRootNode.getParentIdentifiers()[0],
            testRootNode.getIdentifier());

    //search service configuration
    SearchServiceConfiguration configuration = new SearchServiceConfiguration(schema, tableResolver,
            mock(ContentReaderInterceptor.class), indexConfuration);
    searchService = new SearchService(configuration);
    searchService.start();

    List<ContentEntry> contentEntries = new ArrayList<ContentEntry>();
    contentEntries.add(testRootNode);
    searchService.update(contentEntries, Collections.EMPTY_SET);
}

---

From source file:org.apache.hadoop.yarn.server.resourcemanager.monitor.capacity.ProportionalCapacityPreemptionPolicy.java

@SuppressWarnings("unchecked")
@VisibleForTesting//ww w  .  j a  v a  2s .  c o  m
public ProportionalCapacityPreemptionPolicy(RMContext context, CapacityScheduler scheduler, Clock clock) {
    init(context.getYarnConfiguration(), context, scheduler);
    this.clock = clock;
    allPartitions = Collections.EMPTY_SET;
    leafQueueNames = Collections.EMPTY_SET;
    preemptableQueues = Collections.EMPTY_MAP;
}

---

From source file:org.talend.dataquality.statistics.datetime.CustomDateTimePatternManagerTest.java

@Test
public void testInvalidTimeNotMatchingCustomPattern() {
    assertFalse(CustomDateTimePatternManager.isTime("21?30", Collections.<String>singletonList("H-m")));
    assertEquals(Collections.EMPTY_SET, CustomDateTimePatternManager.replaceByDateTimePattern("21?30", "H-m"));
}

---

From source file:SessionMap.java

/**
 * @see java.util.Map#entrySet()/*from w w w  . j  av  a2  s  .c  om*/
 */
public Set entrySet() {
    if (session != null) {
        Set entrySet = new HashSet();

        Enumeration enumeration = session.getAttributeNames();
        while (enumeration.hasMoreElements()) {
            String name = enumeration.nextElement().toString();
            Object value = session.getAttribute(name);
            entrySet.add(value);
        }

        return entrySet;

    } else {
        return Collections.EMPTY_SET;
    }
}

---

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