Example usage for java.util ListIterator hasPrevious

Introduction

In this page you can find the example usage for java.util ListIterator hasPrevious.

Prototype

boolean hasPrevious();

Source Link

Document

Returns true if this list iterator has more elements when traversing the list in the reverse direction.

Usage

From source file:org.xchain.impl.CommandList.java

public boolean execute(JXPathContext context) throws Exception {
    // Verify our parameters
    if (context == null) {
        throw new IllegalArgumentException();
    }/*from   ww  w  .j  a  v a  2  s  .c  o m*/

    // Execute the commands in this list until one returns true
    // or throws an exception
    boolean saveResult = false;
    Exception saveException = null;
    ListIterator<Command> iterator = listIterator();
    while (iterator.hasNext()) {
        try {
            saveResult = iterator.next().execute(context);
            if (saveResult) {
                break;
            }
        } catch (Exception e) {
            saveException = e;
            break;
        }
    }

    boolean handled = false;
    boolean result = false;
    while (iterator.hasPrevious()) {
        Object previous = iterator.previous();
        if (previous instanceof Filter) {
            try {
                result = ((Filter) previous).postProcess(context, saveException);
                if (result) {
                    handled = true;
                }
            } catch (Exception e) {
                // Silently ignore
            }
        }
    }

    // Return the exception or result state from the last execute()
    if ((saveException != null) && !handled) {
        throw saveException;
    } else {
        return (saveResult);
    }
}

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From source file:org.flowable.cmmn.converter.ConversionHelper.java

public void addEntryCriterionToCurrentElement(Criterion entryCriterion) {
    addEntryCriterion(entryCriterion);/*from w w  w  .j a  v a 2  s .c om*/

    ListIterator<CmmnElement> iterator = currentCmmnElements.listIterator(currentCmmnElements.size());
    HasEntryCriteria hasEntryCriteria = null;
    while (hasEntryCriteria == null && iterator.hasPrevious()) {
        CmmnElement cmmnElement = iterator.previous();
        if (cmmnElement instanceof HasEntryCriteria) {
            hasEntryCriteria = (HasEntryCriteria) cmmnElement;
        }
    }
    if (hasEntryCriteria != null) {

        if (StringUtils.isEmpty(entryCriterion.getId())) {
            // An id is expected by the evaluation algorithm, so setting an internal one if there isn't one
            entryCriterion.setId("entryCriterion_" + (hasEntryCriteria.getEntryCriteria().size() + 1));
        }

        entryCriterion.setAttachedToRefId(hasEntryCriteria.getId());
        hasEntryCriteria.getEntryCriteria().add(entryCriterion);

    } else {
        throw new FlowableException("Cannot add an entry criteria " + entryCriterion.getId()
                + " no matching plan item found to attach it to");
    }
}

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From source file:org.netflux.core.Record.java

/**
 * Removes from this record all the field metadata and all the fields with names included in the supplied collection.
 * //from  www.j a  v  a  2  s. com
 * @param fieldNames the names of the field metadata and fields to remove.
 * @throws NullPointerException if the specified collection is <code>null</code>.
 */
public void remove(Collection<String> fieldNames) {
    List<String> fieldsToRemove = new LinkedList<String>(this.metadata.getFieldNames());
    fieldsToRemove.retainAll(fieldNames);

    ListIterator<String> fieldIndexIterator = fieldsToRemove.listIterator(fieldsToRemove.size());
    while (fieldIndexIterator.hasPrevious()) {
        this.data.remove(fieldIndexIterator.previous());
    }

    this.metadata.remove(fieldNames);
}

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From source file:org.apache.stratos.autoscaler.service.util.IaasContext.java

/**
 * This will return the public IP of the node which is belong to the
 * requesting domain, sub domain and which is the most recently created. If it cannot find a
 * matching public IP, this will return <code>null</code>.
 * @param domain service domain. //w ww  .  j a  v  a  2 s .  com
 * @param subDomain service sub domain. 
 * @return the public IP of the node
 */
public String getLastMatchingPublicIp(String domain, String subDomain) {

    InstanceContext ctx = getInstanceContext(domain, subDomain);

    if (ctx == null) {
        return null;
    }

    // iterate in reverse order
    ListIterator<String> iter = new ArrayList<String>(ctx.getNodeIdToIpMap().keySet())
            .listIterator(ctx.getNodeIdToIpMap().size());

    while (iter.hasPrevious()) {
        return ctx.getNodeIdToIpMap().get(iter.previous());
    }

    return null;

    //        // traverse from the last entry of the map
    //        ListIterator<Map.Entry<String, String>> iter =
    //            new ArrayList<Entry<String, String>>(publicIpToDomainMap.entrySet()).
    //                                listIterator(publicIpToDomainMap.size());
    //
    //        while (iter.hasPrevious()) {
    //            Map.Entry<String, String> entry = iter.previous();
    //            if (entry.getValue().equals(domain)) {
    //                return entry.getKey();
    //            }
    //        }
    //        
    //        return null;
}

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From source file:org.broadinstitute.gatk.tools.walkers.haplotypecaller.graphs.Path.java

/**
  * Checks whether a given path is a suffix of this path.
  */*from  www .  j a  v  a 2s .  c o m*/
  * @param other the path to compare against.
  * @throws IllegalArgumentException if <code>other</code> is <code>null</code>, or the come from
  *   different graphs.
  * @return true if <code>other</code> is a suffix of this path.
  */
public boolean isSuffix(final Path<T, E> other) {
    if (other == null)
        throw new IllegalArgumentException("path cannot be null");
    if (other.getGraph() != this.getGraph())
        throw new IllegalArgumentException("the other path most belong to the same path");
    if (!lastVertex.equals(other.lastVertex))
        return false;
    final ListIterator<E> myIt = edgesInOrder.listIterator(edgesInOrder.size());
    final ListIterator<E> otherIt = other.edgesInOrder.listIterator(other.edgesInOrder.size());
    while (myIt.hasPrevious() && otherIt.hasPrevious())
        if (otherIt.previous() != myIt.previous())
            return false;
    return !otherIt.hasPrevious();
}

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From source file:edu.csun.ecs.cs.multitouchj.ui.graphic.WindowManager.java

private void dispatchObjectEventControls(ObjectEvent objectEvent) {
    List<Control> cursors = null;
    synchronized (cursorHandler) {
        cursors = cursorHandler.getCursors();
    }/*  ww  w . ja v  a  2 s  .  c  om*/

    Control activeControl = null;
    LinkedList<ObjectObserverEvent> consumedOoes = new LinkedList<ObjectObserverEvent>();
    ListIterator<Control> listIterator = controls.listIterator(controls.size());
    while (listIterator.hasPrevious()) {
        Control control = listIterator.previous();
        if ((!control.isVisible()) || (cursors.contains(control))) {
            continue;
        }

        ObjectEvent copiedObjectEvent = objectEvent.copy();
        // check how many of Ooes are within this control
        LinkedList<ObjectObserverEvent> ooes = new LinkedList<ObjectObserverEvent>();
        for (ObjectObserverEvent ooe : objectEvent.getObjectObserverEvents()) {
            if (!consumedOoes.contains(ooe)) {
                if (control.isWithin(new Point(ooe.getX(), ooe.getY()))) {
                    ooes.add(ooe);
                    consumedOoes.add(ooe);
                }
            }
        }
        copiedObjectEvent.setObjectObserverEvents(ooes);

        ObjectObserverEvent targetOoe = objectEvent.getTargetObjectObserverEvent();
        if (ooes.contains(targetOoe)) {
            activeControl = control;
        } else {
            targetOoe = null;
        }
        copiedObjectEvent.setTargetObjectObserverEvent(targetOoe);

        //log.debug("Ooes: "+ooes.size());
        if (ooes.size() > 0) {
            log.debug(control.getClass().toString() + "[" + control.getPosition().toString() + "]"
                    + ": Sending " + ooes.size() + " ooes");
            control.dispatchEvent(copiedObjectEvent);
        }
    }

    if ((activeControl != null) && (!activeControl.equals(backgroundControl))) {
        if (!activeControl.equals(controls.getLast())) {
            controls.remove(activeControl);
            controls.add(activeControl);
        }
    }
}

---

From source file:org.apache.cocoon.components.pipeline.impl.CachingPointProcessingPipeline.java

/**
 * Cache longest cacheable path plus cache points.
 *//* www .  j av  a 2  s.c  om*/
protected void cacheResults(Environment environment, OutputStream os) throws Exception {

    if (this.toCacheKey != null) {
        if (this.cacheCompleteResponse) {
            if (this.getLogger().isDebugEnabled()) {
                this.getLogger().debug("Cached: caching complete response; pSisze" + this.toCacheKey.size()
                        + " Key " + this.toCacheKey);
            }
            CachedResponse response = new CachedResponse(this.toCacheSourceValidities,
                    ((CachingOutputStream) os).getContent());
            response.setContentType(environment.getContentType());
            this.cache.store(this.toCacheKey.copy(), response);
            //
            // Scan back along the pipelineCacheKey for
            // for any cachepoint(s)
            //
            this.toCacheKey.removeUntilCachePoint();

            //
            // adjust the validities object
            // to reflect the new length of the pipeline cache key.
            //
            // REVISIT: Is it enough to simply reduce the length of the validities array?
            //
            if (this.toCacheKey.size() > 0) {
                SourceValidity[] copy = new SourceValidity[this.toCacheKey.size()];
                System.arraycopy(this.toCacheSourceValidities, 0, copy, 0, copy.length);
                this.toCacheSourceValidities = copy;
            }
        }

        if (this.toCacheKey.size() > 0) {
            ListIterator itt = this.xmlSerializerArray.listIterator(this.xmlSerializerArray.size());
            while (itt.hasPrevious()) {
                XMLSerializer serializer = (XMLSerializer) itt.previous();
                CachedResponse response = new CachedResponse(this.toCacheSourceValidities,
                        (byte[]) serializer.getSAXFragment());
                this.cache.store(this.toCacheKey.copy(), response);

                if (this.getLogger().isDebugEnabled()) {
                    this.getLogger().debug("Caching results for the following key: " + this.toCacheKey);
                }

                //
                // Check for further cachepoints
                //
                toCacheKey.removeUntilCachePoint();
                if (this.toCacheKey.size() == 0)
                    // no cachePoint found in key
                    break;

                //
                // re-calculate validities array
                //
                SourceValidity[] copy = new SourceValidity[this.toCacheKey.size()];
                System.arraycopy(this.toCacheSourceValidities, 0, copy, 0, copy.length);
                this.toCacheSourceValidities = copy;
            } //end serializer loop
        }
    }
}

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From source file:org.jboss.set.aphrodite.repository.services.github.GithubPullRequestHomeService.java

private GHPullRequestReview findReviewStateByUser(PullRequest pullRequest, GHUser user) {
    URL url = pullRequest.getURL();
    int pullRequestId = Integer.parseInt(pullRequest.getId());
    String repositoryId = createRepositoryIdFromUrl(url);
    try {// w ww .jav a  2 s  .com
        GHRepository repository = github.getRepository(repositoryId);
        GHPullRequest ghPullRequest = repository.getPullRequest(pullRequestId);
        List<GHPullRequestReview> reviews = ghPullRequest.listReviews().asList();
        ListIterator<GHPullRequestReview> li = reviews.listIterator(reviews.size());
        // Iterate in reverse. created date and updated date are always Null, Is this really safe?
        while (li.hasPrevious()) {
            GHPullRequestReview review = li.previous();
            if (review.getUser().equals(user))
                return review;
        }
    } catch (IOException e) {
        Utils.logException(LOG, e);
    }
    return null;
}

---

From source file:org.xchain.impl.ChainImpl.java

public boolean execute(JXPathContext context) throws Exception {
    // Verify our parameters
    if (context == null) {
        throw new IllegalArgumentException();
    }//from w w w  .  j  a  va  2s .  c o  m

    // Execute the commands in this list until one returns true
    // or throws an exception
    boolean saveResult = false;
    Exception saveException = null;
    ListIterator<Command> iterator = commandList.listIterator();
    while (iterator.hasNext()) {
        try {
            saveResult = iterator.next().execute(context);
            if (saveResult) {
                break;
            }
        } catch (Exception e) {
            saveException = e;
            break;
        }
    }

    boolean handled = false;
    boolean result = false;
    while (iterator.hasPrevious()) {
        Object previous = iterator.previous();
        if (previous instanceof Filter) {
            try {
                result = ((Filter) previous).postProcess(context, saveException);
                if (result) {
                    handled = true;
                }
            } catch (Exception e) {
                // Silently ignore
            }
        }
    }

    // Return the exception or result state from the last execute()
    if ((saveException != null) && !handled) {
        throw saveException;
    } else {
        return (saveResult);
    }
}

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From source file:org.echocat.jomon.maven.boot.ArtifactFactory.java

@Nullable
protected String selectLatestMatchingVersion(@Nonnull ArtifactRepositoryMetadata repositoryMetadata,
        @Nonnull Artifact artifact) {/*from   w  w  w.  j av a 2s  .  c o  m*/
    final Metadata metadata = repositoryMetadata.getMetadata();
    String latestMatchingVersion = null;
    final Versioning versioning = metadata.getVersioning();
    if (versioning != null) {
        final List<String> versions = versioning.getVersions();
        final ListIterator<String> i = versions.listIterator(versions.size());
        final VersionRange versionRange = artifact.getVersionRange();
        while (i.hasPrevious() && isEmpty(latestMatchingVersion)) {
            final String current = i.previous();
            if (versionRange.containsVersion(new DefaultArtifactVersion(current))) {
                latestMatchingVersion = current;
            }
        }
    }
    return latestMatchingVersion;
}

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