Example usage for java.util TreeSet isEmpty

Introduction

In this page you can find the example usage for java.util TreeSet isEmpty.

Prototype

public boolean isEmpty() 

Source Link

Document

Returns true if this set contains no elements.

Usage

From source file:it.ozimov.springboot.templating.mail.service.PriorityQueueSchedulerService.java

private synchronized Optional<EmailSchedulingWrapper> dequeue() throws InterruptedException {
    EmailSchedulingWrapper emailSchedulingWrapper = null;
    timeOfNextScheduledMessage = null;/*from   w  w  w. j a  v  a2s.  c o  m*/
    while (consumer.enabled() && isNull(emailSchedulingWrapper)) {
        //try to find a message in queue
        final long now = TimeUtils.now();
        for (final TreeSet<EmailSchedulingWrapper> queue : queues) {
            if (!queue.isEmpty()) {
                final long time = queue.first().getScheduledDateTime().toInstant().toEpochMilli();
                if (time - now <= DELTA) {
                    //message found!
                    emailSchedulingWrapper = queue.pollFirst();
                    break;
                } else if (isNull(timeOfNextScheduledMessage) || time < timeOfNextScheduledMessage) {
                    timeOfNextScheduledMessage = time;
                }

            }
        }
        if (isNull(emailSchedulingWrapper)) {
            //no message was found, let's sleep, some message may arrive in the meanwhile
            if (isNull(timeOfNextScheduledMessage)) { //all the queues are empty
                wait(); //the consumer starts waiting for a new email to be scheduled
            } else {
                final long waitTime = timeOfNextScheduledMessage - TimeUtils.now() - DELTA;
                if (waitTime > 0) {
                    wait(waitTime); //wait before sending the most imminent scheduled email
                }
            }
        }
    }
    //here emailSchedulingWrapper is the message to send
    return Optional.ofNullable(emailSchedulingWrapper);
}

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From source file:org.apache.hadoop.hbase.zookeeper.lock.ZKInterProcessReadLock.java

/**
 * {@inheritDoc}//from w ww .  j  a  v a  2s .co m
 */
@Override
protected String getLockPath(String createdZNode, List<String> children) throws IOException {
    TreeSet<String> writeChildren = new TreeSet<String>(ZNodeComparator.COMPARATOR);
    for (String child : children) {
        if (isChildWriteLock(child)) {
            writeChildren.add(child);
        }
    }
    if (writeChildren.isEmpty()) {
        return null;
    }
    SortedSet<String> lowerChildren = writeChildren.headSet(createdZNode);
    if (lowerChildren.isEmpty()) {
        return null;
    }
    String pathToWatch = lowerChildren.last();
    String nodeHoldingLock = lowerChildren.first();
    String znode = ZKUtil.joinZNode(parentLockNode, nodeHoldingLock);
    handleLockMetadata(znode);

    return pathToWatch;
}

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From source file:org.mapfish.print.output.OutputFactory.java

private boolean permitted(String supportedFormat, Config config) {
    TreeSet<String> configuredFormats = config.getFormats();
    if (configuredFormats.size() == 1 && configuredFormats.iterator().next().trim().equals("*")) {
        return true;
    }//from   w ww.j  ava 2 s  . c o  m

    if (configuredFormats.isEmpty()) {
        return "pdf".equalsIgnoreCase(supportedFormat);
    }

    for (String configuredFormat : configuredFormats) {
        if (configuredFormat.equalsIgnoreCase(supportedFormat))
            return true;
    }

    return false;
}

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From source file:org.apache.hadoop.hbase.zookeeper.lock.HReadLockImpl.java

/**
 * {@inheritDoc}//from w  w w .j a  v  a 2 s  .c om
 */
@Override
protected String getLockPath(String createdZNode, List<String> children)
        throws IOException, InterruptedException {
    TreeSet<String> writeChildren = new TreeSet<String>(new ZNodeComparator(zkWrapper.getIdentifier()));
    for (String child : children) {
        if (isWriteChild(child)) {
            writeChildren.add(child);
        }
    }
    if (writeChildren.isEmpty()) {
        return null;
    }
    SortedSet<String> lowerChildren = writeChildren.headSet(createdZNode);
    if (lowerChildren.isEmpty()) {
        return null;
    }
    String pathToWatch = lowerChildren.last();
    String nodeHoldingLock = lowerChildren.first();
    try {
        handleLockMetadata(nodeHoldingLock);
    } catch (IOException e) {
        LOG.warn("Error processing lock metadata in " + nodeHoldingLock, e);
    }
    return pathToWatch;
}

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From source file:org.jamocha.dn.ConflictSet.java

public synchronized RuleAndToken getCurrentlySelectedRuleAndToken() {
    final TreeSet<RuleAndToken> conflictingRulesAndTokensForMaxSalience = getConflictingRulesAndTokensForMaxSalience();
    if (null == conflictingRulesAndTokensForMaxSalience || conflictingRulesAndTokensForMaxSalience.isEmpty()) {
        return null;
    }//  ww  w . j av  a  2s  .  com
    return conflictingRulesAndTokensForMaxSalience.last();
}

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From source file:org.cbioportal.mutationhotspots.mutationhotspotsdetection.impl.MutatedResidueImpl.java

@Override
public String toString() {
    StringBuilder sb = new StringBuilder();
    sb.append(protein.getGeneSymbol()).append("\t").append(protein.getTranscriptId().split("\\.")[0])
            .append("\t").append(residue).append("\t").append(".") //score
            .append("\t").append(pvalue).append("\t").append(".") //qvalue
    ;/*from  w ww  .ja va 2  s  .c  o  m*/

    TreeSet<Integer> ids = new TreeSet<>();
    for (Hotspot hs : hotspots) {
        if (hs.getPValue() <= pvalueThreahold) {
            ids.add(hs.getId());
        }
    }

    if (!ids.isEmpty()) {
        sb.append("\tCLUSTER_ID=").append(StringUtils.join(ids, ","));
    }

    TreeSet<String> pdbChains = new TreeSet<>();
    for (Hotspot hs : hotspots) {
        if (hs.getId() > 0) {
            Hotspot3D hs3D = Hotspot3D.class.cast(hs);
            Set<Hotspot> phss = hs3D.getHotspots3D();
            for (Hotspot phs : phss) {
                if (phs.getPValue() <= pvalueThreahold) {
                    MutatedProtein3D p3d = MutatedProtein3D.class.cast(phs.getProtein());
                    pdbChains.add(p3d.getPdbId() + "." + p3d.getPdbChain() + "(" + phs.getPValue() + ")");
                }
            }
        }
    }
    if (!pdbChains.isEmpty()) {
        sb.append(";PDB_CHAIN=").append(StringUtils.join(pdbChains, ","));
    }

    return sb.toString();
}

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From source file:org.jboss.dashboard.ui.config.components.sections.SectionCopyFormatter.java

public void service(HttpServletRequest request, HttpServletResponse response) throws FormatterException {

    try {/*ww w  .j a va 2s.c o m*/
        WorkspaceImpl workspace = (WorkspaceImpl) getSectionsPropertiesHandler().getWorkspace();
        setAttribute("sectionTitle", getLocalizedValue(workspace
                .getSection(Long.decode(getSectionsPropertiesHandler().getSelectedSectionId())).getTitle()));
        renderFragment("outputStart");

        WorkspacePermission sectionPerm = WorkspacePermission.newInstance(workspace,
                WorkspacePermission.ACTION_CREATE_PAGE);
        if (UserStatus.lookup().hasPermission(sectionPerm)) {
            Panel[] panels = workspace
                    .getSection(Long.decode(getSectionsPropertiesHandler().getSelectedSectionId()))
                    .getAllPanels();
            TreeSet panelInstances = new TreeSet();
            for (int i = 0; i < panels.length; i++) {
                Panel panel = panels[i];
                panelInstances.add(panel.getInstanceId());
            }
            if (!panelInstances.isEmpty()) {
                setAttribute("sectionTitle",
                        LocaleManager.lookup().localize(workspace
                                .getSection(Long.decode(getSectionsPropertiesHandler().getSelectedSectionId()))
                                .getTitle()));
                renderFragment("outputMode");

                renderFragment("outputHeaders");
                Iterator it = panelInstances.iterator();
                int counter = 0;
                while (it.hasNext()) {
                    String instanceId = it.next().toString();
                    PanelInstance instance = workspace.getPanelInstance(instanceId);
                    setAttribute("instanceId", instanceId);
                    setAttribute("group", instance.getResource(instance.getProvider().getGroup(), getLocale()));
                    setAttribute("description",
                            instance.getResource(instance.getProvider().getDescription(), getLocale()));
                    setAttribute("title", getLocalizedValue(instance.getTitle()));
                    setAttribute("counter", counter);
                    counter++;
                    renderFragment("outputOpt");
                }
                renderFragment("outputOptEnd");
                renderFragment("outputHeadersEnd");
            } else {
                renderFragment("outputEmpty");
                getSectionsPropertiesHandler().setDuplicateSection(Boolean.FALSE);
            }
        }
        renderFragment("outputEnd");
    } catch (Exception e) {
        log.error("Error rendering section copy form: ", e);
    }
}

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From source file:org.jamocha.dn.ConflictSet.java

public synchronized boolean remove(final RuleAndToken ruleAndToken) {
    final Integer salience = ruleAndToken.rule.getParent().getSalience();
    final TreeSet<RuleAndToken> ratSet = this.rulesAndTokensBySalience.get(salience);
    if (null == ratSet)
        return false;
    final boolean removed = ratSet.remove(ruleAndToken);
    if (ratSet.isEmpty()) {
        this.rulesAndTokensBySalience.remove(salience);
    }/*from  w  w w. ja v a 2  s.  c o  m*/
    return removed;
}

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From source file:org.opensextant.solrtexttagger.AbstractTaggerTest.java

/** Asserts the sorted arrays are equals, with a helpful error message when not.
 * @param message/*from   ww w  .j  av  a2 s. co m*/
 * @param expecteds
 * @param actuals
 */
public void assertSortedArrayEquals(String message, Object[] expecteds, Object[] actuals) {
    AssertionError error = null;
    try {
        assertArrayEquals(null, expecteds, actuals);
    } catch (AssertionError e) {
        error = e;
    }
    if (error == null)
        return;
    TreeSet<Object> expectedRemaining = new TreeSet<>(Arrays.asList(expecteds));
    expectedRemaining.removeAll(Arrays.asList(actuals));
    if (!expectedRemaining.isEmpty())
        fail(message + ": didn't find expected " + expectedRemaining.first() + " (of "
                + expectedRemaining.size() + "); " + error);
    TreeSet<Object> actualsRemaining = new TreeSet<>(Arrays.asList(actuals));
    actualsRemaining.removeAll(Arrays.asList(expecteds));
    fail(message + ": didn't expect " + actualsRemaining.first() + " (of " + actualsRemaining.size() + "); "
            + error);
}

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From source file:de.tudarmstadt.ukp.dkpro.tc.fstore.simple.SparseFeatureStore.java

@SuppressWarnings("unchecked")
@Override//w  w  w  .j  av  a2  s .c om
public void setFeatureNames(TreeSet<String> featureNames) {
    if (featureNames == null) {
        throw new IllegalArgumentException("param featureNames is null");
    }

    if (featureNames.isEmpty()) {
        throw new IllegalStateException("Cannot set empty feature space");
    }

    if (!isSettingFeatureNamesAllowed()) {
        throw new IllegalStateException("Setting feature names is not allowed.");
    }

    Set<String> deletedFeatures = new HashSet<>(
            (Collection<String>) CollectionUtils.subtract(this.allFeatureNames, featureNames));

    log.debug(deletedFeatures.size() + " features from test data not seen in training data, "
            + "removing features from the store.");

    this.allFeatureNames = featureNames;

    // update all instances to they do not contain old features
    for (Map<String, Object> instance : this.instanceList) {
        for (String deletedFeature : deletedFeatures) {
            if (instance.containsKey(deletedFeature)) {
                instance.remove(deletedFeature);
            }
        }
    }
}

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