Example usage for java.util Collection clear

List of usage examples for java.util Collection clear

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Introduction

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

Prototype

void clear();

Source Link

Document

Removes all of the elements from this collection (optional operation).

Usage

From source file:com.haulmont.cuba.gui.data.impl.CollectionPropertyDatasourceImpl.java

@Override
public void clear() {
    backgroundWorker.checkUIAccess();//w w w .  ja v a  2  s. c  o m

    checkState();
    Collection<T> collection = getCollection();
    if (collection != null) {
        Collection<T> collectionItems = new ArrayList<>(collection);
        doNotModify = true;
        try {
            // Clear collection
            collection.clear();
            // Notify listeners
            for (T item : collectionItems) {
                if (metaProperty.getRange().getCardinality() == Range.Cardinality.ONE_TO_MANY) {
                    MetaProperty inverseProperty = metaProperty.getInverse();
                    if (inverseProperty == null) {
                        throw new UnsupportedOperationException("No inverse property for " + metaProperty);
                    }

                    item.setValue(inverseProperty.getName(), null);
                }

                // detach listener only after setting value to the link property
                detachListener(item);
            }

            setItem(null);

            fireCollectionChanged(Operation.CLEAR, Collections.emptyList());
        } finally {
            doNotModify = false;
        }
    }
}

From source file:com.haulmont.cuba.gui.data.impl.CollectionPropertyDatasourceImpl.java

@SuppressWarnings("unchecked")
protected void addToCollectionFirst(T item) {
    Collection<T> collection = getCollection();
    if (collection instanceof List) {
        ((List) collection).add(0, item);
    } else if (collection instanceof LinkedHashSet) {
        LinkedHashSet tmpSet = (LinkedHashSet) ((LinkedHashSet) collection).clone();
        collection.clear();
        ((LinkedHashSet) collection).add(item);
        ((LinkedHashSet) collection).addAll(tmpSet);
    } else {//from  w w  w.j  a va2 s  .c  om
        collection.add(item);
    }
}

From source file:com.graphhopper.jsprit.core.algorithm.ruin.RuinClusters.java

private void ruin(Collection<VehicleRoute> vehicleRoutes, int nOfJobs2BeRemoved, List<Job> unassignedJobs) {
    if (vrp.getJobs().values().size() == 0)
        return;// w ww  .j av a2  s.  c o  m
    Map<Job, VehicleRoute> mappedRoutes = map(vehicleRoutes);
    int toRemove = nOfJobs2BeRemoved;

    Collection<Job> lastRemoved = new ArrayList<Job>();
    Set<VehicleRoute> ruined = new HashSet<VehicleRoute>();
    Set<Job> removed = new HashSet<Job>();
    Set<VehicleRoute> cycleCandidates = new HashSet<VehicleRoute>();
    while (toRemove > 0) {
        Job target;
        VehicleRoute targetRoute = null;
        if (lastRemoved.isEmpty()) {
            target = RandomUtils.nextJob(vrp.getJobs().values(), random);
            targetRoute = mappedRoutes.get(target);
        } else {
            target = RandomUtils.nextJob(lastRemoved, random);
            Iterator<Job> neighborIterator = jobNeighborhoods.getNearestNeighborsIterator(nOfJobs2BeRemoved,
                    target);
            while (neighborIterator.hasNext()) {
                Job j = neighborIterator.next();
                if (!removed.contains(j) && !ruined.contains(mappedRoutes.get(j))) {
                    targetRoute = mappedRoutes.get(j);
                    break;
                }
            }
            lastRemoved.clear();
        }
        if (targetRoute == null)
            break;
        if (cycleCandidates.contains(targetRoute))
            break;
        if (ruined.contains(targetRoute)) {
            cycleCandidates.add(targetRoute);
            break;
        }
        DBSCANClusterer dbscan = new DBSCANClusterer(vrp.getTransportCosts());
        dbscan.setRandom(random);
        dbscan.setMinPts(minPts);
        dbscan.setEpsFactor(epsFactor);
        List<Job> cluster = dbscan.getRandomCluster(targetRoute);
        for (Job j : cluster) {
            if (toRemove == 0)
                break;
            if (removeJob(j, vehicleRoutes)) {
                lastRemoved.add(j);
                unassignedJobs.add(j);
            }
            toRemove--;
        }
        ruined.add(targetRoute);
    }
}

From source file:de.hybris.platform.test.MediaTest.java

@Test
public void testDeniedPrincipals() throws JaloBusinessException {
    final UserRight userRight = AccessManager.getInstance().getOrCreateUserRightByCode("read");
    final Media m = MediaManager.getInstance().createMedia("media123");
    final Collection<Principal> existingDeniedPrincipals = m.getDeniedPrincipals();
    assertThat(existingDeniedPrincipals).isEmpty();

    final Collection<Principal> principalsToBeDenied = new HashSet<Principal>();
    final User testUser1 = UserManager.getInstance().createUser("testUser1");
    final User testUser2 = UserManager.getInstance().createUser("testUser2");
    principalsToBeDenied.add(testUser1);
    principalsToBeDenied.add(testUser2);

    m.setDeniedPrincipals(principalsToBeDenied);
    assertCollection(principalsToBeDenied, m.getDeniedPrincipals());

    //check the negative permissions
    assertTrue(m.getPermissions(testUser1, true).contains(userRight.getPK()));
    assertTrue(m.getPermissions(testUser2, true).contains(userRight.getPK()));

    principalsToBeDenied.clear();
    final User testUser3 = UserManager.getInstance().createUser("testUser3");
    principalsToBeDenied.add(testUser3);
    m.setDeniedPrincipals(principalsToBeDenied);
    assertCollection(principalsToBeDenied, m.getDeniedPrincipals());
    assertTrue(m.getPermissions(testUser3, true).contains(userRight.getPK()));
}

From source file:org.commonreality.sensors.base.BaseSensor.java

/**
 * commit all the changes..// w  w  w.  j  a  v  a2s. c  o m
 */
private void process(IIdentifier agentId) {
    IIdentifier sId = getIdentifier();

    Collection<IObjectDelta> deltas = new ArrayList<IObjectDelta>();
    Collection<IIdentifier> identifiers = new ArrayList<IIdentifier>();

    synchronized (_toBeAdded) {
        Collection<ISimulationObject> add = _toBeAdded.get(agentId);

        if (add.size() > 0) {
            for (ISimulationObject object : add) {
                identifiers.add(object.getIdentifier());
                deltas.add(new FullObjectDelta(object));
            }

            /*
             * we send the data immediately.. but queue up the notification
             */
            _delayedCommands.add(new ObjectDataRequest(sId, agentId, deltas));
            _delayedCommands
                    .add(new ObjectCommandRequest(sId, agentId, IObjectCommand.Type.ADDED, identifiers));
        }
        add.clear();
    }

    identifiers.clear();
    deltas.clear();

    synchronized (_toBeChanged) {
        Collection<IObjectDelta> change = _toBeChanged.get(agentId);
        if (change.size() != 0) {
            /*
             * and the modify
             */
            for (IObjectDelta delta : change) {
                deltas.add(delta);
                identifiers.add(delta.getIdentifier());
            }

            _delayedCommands.add(new ObjectDataRequest(sId, agentId, deltas));
            _delayedCommands
                    .add(new ObjectCommandRequest(sId, agentId, IObjectCommand.Type.UPDATED, identifiers));
        }
        change.clear();
    }

    deltas.clear();
    identifiers.clear();

    synchronized (_toBeRemoved) {
        Collection<IIdentifier> remove = _toBeRemoved.get(agentId);
        if (remove.size() != 0)
            _delayedCommands.add(new ObjectCommandRequest(sId, agentId, IObjectCommand.Type.REMOVED, remove));

        remove.clear();
    }

}

From source file:edu.ksu.cis.indus.staticanalyses.callgraphs.CallGraphXMLizerCLI.java

/**
 * Executed OFA-based call graph analysis.
 * //from w  w  w  . ja v  a  2 s.  co  m
 * @param dumpJimple <code>true</code> indicate that jimple should be dumped; <code>false</code>, otherwise.
 * @param <T> dummy type parameter.
 */
private <T extends ITokens<T, Value>> void executeOFA(final boolean dumpJimple, final String OFAType) {
    final String _tagName = "CallGraphXMLizer:FA";
    final IValueAnalyzer<Value> _aa;
    if (OFAType.equals("ofa-oi"))
        _aa = OFAnalyzer.getFSOIAnalyzer(_tagName,
                TokenUtil.<T, Value, Type>getTokenManager(new SootValueTypeManager()), getStmtGraphFactory());
    else if (OFAType.equals("ofa-oirt"))
        _aa = OFAnalyzer.getFSOIRTAnalyzer(_tagName,
                TokenUtil.<T, Value, Type>getTokenManager(new SootValueTypeManager()), getStmtGraphFactory());
    else if (OFAType.equals("ofa-os"))
        _aa = OFAnalyzer.getFSOSAnalyzer(_tagName,
                TokenUtil.<T, Value, Type>getTokenManager(new SootValueTypeManager()), getStmtGraphFactory());
    else {
        throw new IllegalArgumentException(
                "callgraph-type has to be one of the following: ofa-oi, ofa-oirt, ofa-os," + " fsoirt.");
    }
    final ValueAnalyzerBasedProcessingController _pc = new ValueAnalyzerBasedProcessingController();
    final Collection<IProcessor> _processors = new ArrayList<IProcessor>();
    final CallGraphInfo _cgi = new CallGraphInfo(new PairManager(false, true));
    final OFABasedCallInfoCollector _ofaci = new OFABasedCallInfoCollector();
    final Collection<SootMethod> _rm = new ArrayList<SootMethod>();
    final MetricsProcessor _countingProcessor = new MetricsProcessor();
    final OneAllStmtSequenceRetriever _ssr = new OneAllStmtSequenceRetriever();
    _ssr.setStmtGraphFactory(getStmtGraphFactory());
    _pc.setStmtSequencesRetriever(_ssr);
    _pc.setAnalyzer(_aa);
    _pc.setEnvironment(getEnvironment());
    _pc.setProcessingFilter(new TagBasedProcessingFilter(_tagName));

    final List<Object> _roots = new ArrayList<Object>();

    if (cumulative) {
        _roots.add(getRootMethods());
    } else {
        _roots.addAll(getRootMethods());
    }
    Collections.sort(_roots, ToStringBasedComparator.getComparator());
    writeInfo("Root methods are: " + _roots.size() + "\n" + _roots);

    for (final Iterator<Object> _k = _roots.iterator(); _k.hasNext();) {
        _rm.clear();

        final Object _root = _k.next();
        final String _fileBaseName = "OFA-Based_" + OFAXMLizerCLI.getBaseNameOfFileAndRootMethods(_root, _rm);
        writeInfo("RootMethod: " + _root);
        writeInfo("BEGIN: FA");

        final long _start = System.currentTimeMillis();
        _aa.reset();
        getBbm().reset();

        _aa.analyze(getEnvironment(), _rm);

        final long _stop = System.currentTimeMillis();
        addTimeLog("FA", _stop - _start);
        writeInfo("END: FA");

        _ofaci.reset();
        _processors.clear();
        _processors.add(_ofaci);
        _processors.add(_countingProcessor);
        _pc.reset();
        _pc.driveProcessors(_processors);
        _processors.clear();
        _cgi.reset();
        _cgi.createCallGraphInfo(_ofaci.getCallInfo());

        final ByteArrayOutputStream _stream = new ByteArrayOutputStream();
        new PrintWriter(_stream)
                .write("STATISTICS: " + MapUtils.verbosePrint(new TreeMap(_countingProcessor.getStatistics())));
        writeInfo(_stream.toString());

        dumpInfo(dumpJimple, _cgi, _fileBaseName, _aa.getEnvironment());
    }
}

From source file:org.codehaus.groovy.grails.web.binding.GrailsDataBinder.java

@SuppressWarnings("unchecked")
private void bindCollectionAssociation(MutablePropertyValues mpvs, PropertyValue pv) {
    Object v = pv.getValue();/*from   ww  w .  j  av  a  2s  .com*/
    final boolean isArray = v != null && v.getClass().isArray();

    if (!isArray && !(v instanceof String))
        return;

    Collection collection = (Collection) bean.getPropertyValue(pv.getName());
    collection.clear();
    final Class associatedType = getReferencedTypeForCollection(pv.getName(), getTarget());
    final PropertyEditor propertyEditor = findCustomEditor(collection.getClass(), pv.getName());
    if (propertyEditor == null) {
        if (isDomainAssociation(associatedType)) {
            if (isArray) {
                Object[] identifiers = (Object[]) v;
                for (Object id : identifiers) {
                    if (id != null) {
                        associateObjectForId(pv, id, associatedType);
                    }
                }
                mpvs.removePropertyValue(pv);
            } else if (v instanceof String) {
                associateObjectForId(pv, v, associatedType);
                mpvs.removePropertyValue(pv);
            }
        } else if (GrailsDomainConfigurationUtil.isBasicType(associatedType)) {
            Object[] values = null;
            if (isArray) {
                values = (Object[]) v;
            } else if (v instanceof String) {
                values = new String[] { (String) v };
            }

            if (values != null) {
                List list = collection instanceof List ? (List) collection : null;
                for (int i = 0; i < values.length; i++) {
                    Object value = values[i];
                    try {
                        Object newValue = getTypeConverter().convertIfNecessary(value, associatedType);
                        if (list != null) {
                            if (i > list.size() - 1) {
                                list.add(i, newValue);
                            } else {
                                list.set(i, newValue);
                            }
                        } else {
                            collection.add(newValue);
                        }
                    } catch (TypeMismatchException e) {
                        // ignore
                    }
                }
                mpvs.removePropertyValue(pv);
            }
        }
    }
}

From source file:org.metaborg.spoofax.eclipse.editor.SpoofaxInformationControl.java

private void setColorPrefixSuffix(Display display, ICompletion input) {

    SourceRegion prefixRegion = calculateRegionPrefix(input);
    SourceRegion suffixRegion = calculateRegionSuffix(input);

    if (prefixRegion == null && suffixRegion == null)
        return;/*from   w  w w .  j  a  v a 2  s. co  m*/

    Collection<IRegionStyle<IStrategoTerm>> stylesPrefixSuffix = Lists.newLinkedList();

    Style style = new Style(new java.awt.Color(196, 196, 196), null, false, false, false, false);

    if (prefixRegion != null) {
        RegionStyle<IStrategoTerm> prefixRegionStyle = new RegionStyle<IStrategoTerm>(prefixRegion, style,
                null);
        stylesPrefixSuffix.add(prefixRegionStyle);
        final TextPresentation textPresentation = StyleUtils.createTextPresentation(stylesPrefixSuffix,
                display);
        fViewer.changeTextPresentation(textPresentation, true);
        stylesPrefixSuffix.clear();
    }
    if (suffixRegion != null) {
        RegionStyle<IStrategoTerm> suffixRegionStyle = new RegionStyle<IStrategoTerm>(suffixRegion, style,
                null);
        stylesPrefixSuffix.add(suffixRegionStyle);
        final TextPresentation textPresentation = StyleUtils.createTextPresentation(stylesPrefixSuffix,
                display);
        fViewer.changeTextPresentation(textPresentation, true);
    }
}

From source file:com.wasteofplastic.beaconz.BeaconListeners.java

/**
 * Applies triangle effects to a player/*  www.  j  a  v  a 2  s  . co m*/
 * @param player
 * @param to
 * @param team
 */
private void applyEffects(Player player, List<TriangleField> to, Team team) {
    if (to.isEmpty() || team == null) {
        return;
    }
    // Apply bad stuff
    // Enemy team
    Team triangleOwner = to.get(0).getOwner();
    Collection<PotionEffect> effects = new ArrayList<PotionEffect>();
    if (triangleOwner != null && !triangleOwner.equals(team)) {
        for (int i = 0; i <= to.size(); i++) {
            if (Settings.enemyFieldEffects.containsKey(i)) {
                effects.addAll(Settings.enemyFieldEffects.get(i));
            }
        }
        player.addPotionEffects(effects);
    }
    effects.clear();
    // Friendly triangle
    if (triangleOwner != null && triangleOwner.equals(team)) {
        for (int i = 0; i <= to.size(); i++) {
            if (Settings.friendlyFieldEffects.containsKey(i)) {
                effects.addAll(Settings.friendlyFieldEffects.get(i));
            }
        }
        player.addPotionEffects(effects);
    }
}

From source file:com.espertech.esper.filter.FilterServiceBase.java

private void retryableMatchEvent(EventBean theEvent, Collection<FilterHandle> matches) {
    // Install lock backoff exception handler that retries the evaluation.
    try {//from ww w  . j  a va 2 s.  c  o m
        eventTypeIndex.matchEvent(theEvent, matches);
    } catch (FilterLockBackoffException ex) {
        // retry on lock back-off
        // lock-backoff may occur when stateful evaluations take place such as boolean expressions that are subqueries
        // statements that contain subqueries in pattern filter expression can themselves modify filters, leading to a theoretically possible deadlock
        long delayNs = 10;
        while (true) {
            try {
                // yield
                try {
                    Thread.sleep(0);
                } catch (InterruptedException e) {
                    Thread.currentThread().interrupt();
                }

                // delay
                LockSupport.parkNanos(delayNs);
                if (delayNs < 1000000000) {
                    delayNs = delayNs * 2;
                }

                // evaluate
                matches.clear();
                eventTypeIndex.matchEvent(theEvent, matches);
                break;
            } catch (FilterLockBackoffException ex2) {
                // retried
            }
        }
    }
}