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:org.apache.vxquery.compiler.rewriter.rules.PushFunctionsOntoEqJoinBranches.java

@Override
public boolean rewritePost(Mutable<ILogicalOperator> opRef, IOptimizationContext context)
        throws AlgebricksException {
    AbstractLogicalOperator op = (AbstractLogicalOperator) opRef.getValue();

    if (op.getOperatorTag() != LogicalOperatorTag.INNERJOIN) {
        return false;
    }/*from  w w  w .  jav a  2s . co  m*/
    AbstractBinaryJoinOperator join = (AbstractBinaryJoinOperator) op;

    ILogicalExpression expr = join.getCondition().getValue();
    if (expr.getExpressionTag() != LogicalExpressionTag.FUNCTION_CALL) {
        return false;
    }
    AbstractFunctionCallExpression fexp = (AbstractFunctionCallExpression) expr;
    FunctionIdentifier fi = fexp.getFunctionIdentifier();
    if (!(fi.equals(AlgebricksBuiltinFunctions.AND) || fi.equals(AlgebricksBuiltinFunctions.EQ))) {
        return false;
    }
    boolean modified = false;
    List<Mutable<ILogicalExpression>> functionList = new ArrayList<Mutable<ILogicalExpression>>();
    List<Mutable<ILogicalExpression>> variableList = new ArrayList<Mutable<ILogicalExpression>>();
    functionList.clear();
    ExpressionToolbox.findAllFunctionExpressions(join.getCondition(), AlgebricksBuiltinFunctions.EQ,
            functionList);
    Collection<LogicalVariable> producedVariables = new ArrayList<LogicalVariable>();
    for (Mutable<ILogicalExpression> searchM : functionList) {
        ILogicalExpression search = searchM.getValue();
        if (search.getExpressionTag() != LogicalExpressionTag.FUNCTION_CALL) {
            continue;
        }
        AbstractFunctionCallExpression searchExp = (AbstractFunctionCallExpression) search;
        // Go through all argument for EQ.
        for (Mutable<ILogicalExpression> expressionM : searchExp.getArguments()) {
            // Push on to branch when possible.
            for (Mutable<ILogicalOperator> branch : join.getInputs()) {
                producedVariables.clear();
                getProducedVariablesInDescendantsAndSelf(branch.getValue(), producedVariables);
                variableList.clear();
                ExpressionToolbox.findVariableExpressions(expressionM, variableList);
                boolean found = true;
                for (Mutable<ILogicalExpression> searchVariableM : variableList) {
                    VariableReferenceExpression vre = (VariableReferenceExpression) searchVariableM.getValue();
                    if (!producedVariables.contains(vre.getVariableReference())) {
                        found = false;
                    }
                }
                if (found) {
                    // push down
                    LogicalVariable assignVariable = context.newVar();
                    AssignOperator aOp = new AssignOperator(assignVariable,
                            new MutableObject<ILogicalExpression>(expressionM.getValue()));
                    aOp.getInputs().add(new MutableObject<ILogicalOperator>(branch.getValue()));
                    branch.setValue(aOp);
                    aOp.recomputeSchema();

                    expressionM.setValue(new VariableReferenceExpression(assignVariable));
                    modified = true;
                }
            }
        }
    }
    return modified;
}

From source file:org.apache.bval.jsr.BeanDescriptorImpl.java

private static void addGroupConvertion(final MetaProperty prop, final PropertyDescriptorImpl edesc) {
    boolean fieldFound = false;
    boolean methodFound = false;
    Class<?> current = prop.getParentMetaBean().getBeanClass();
    while (current != null && current != Object.class && (!methodFound || !fieldFound)) {
        if (!fieldFound) {
            final Field field = Reflection.getDeclaredField(current, prop.getName());
            if (field != null) {
                processConvertGroup(edesc, field);
                fieldFound = true;//ww w .jav  a 2  s.  c  om
            }
        }
        if (!methodFound) {
            final String name = Character.toUpperCase(prop.getName().charAt(0)) + prop.getName().substring(1);
            Method m = Reflection.getDeclaredMethod(current, "get" + name);
            if (m == null) {
                final Method isAccessor = Reflection.getDeclaredMethod(current, "is" + name);
                if (isAccessor != null && boolean.class.equals(isAccessor.getReturnType())) {
                    m = isAccessor;
                }
            }
            if (m != null) {
                processConvertGroup(edesc, m);
                methodFound = true;
            }
        }
        current = current.getSuperclass();
    }

    final Collection<Annotation> annotations = prop.getFeature(JsrFeatures.Property.ANNOTATIONS_TO_PROCESS);
    if (annotations != null) {
        for (final Annotation a : annotations) {
            if (ConvertGroup.List.class.isInstance(a)) {
                for (final ConvertGroup convertGroup : ConvertGroup.List.class.cast(a).value()) {
                    edesc.addGroupConversion(new GroupConversionDescriptorImpl(new Group(convertGroup.from()),
                            new Group(convertGroup.to())));
                }
            }
            if (ConvertGroup.class.isInstance(a)) {
                final ConvertGroup convertGroup = ConvertGroup.class.cast(a);
                edesc.addGroupConversion(new GroupConversionDescriptorImpl(new Group(convertGroup.from()),
                        new Group(convertGroup.to())));
            }
        }
        annotations.clear();
    }
    if (!edesc.getGroupConversions().isEmpty() && !edesc.isCascaded()) {
        throw new ConstraintDeclarationException("@Valid is needed for group conversion");
    }
}

From source file:com.jaeksoft.searchlib.Client.java

private final int deleteUniqueKeyList(int totalCount, int docCount, Collection<String> deleteList,
        InfoCallback infoCallBack) throws SearchLibException {
    docCount += deleteDocuments(getSchema().getUniqueField(), deleteList);
    StringBuilder sb = new StringBuilder();
    sb.append(docCount);/*from  www.java 2  s .co m*/
    sb.append(" / ");
    sb.append(totalCount);
    sb.append(" XML document(s) deleted.");
    if (infoCallBack != null)
        infoCallBack.setInfo(sb.toString());
    else
        Logging.info(sb.toString());
    deleteList.clear();
    return docCount;
}

From source file:ubic.gemma.loader.genome.goldenpath.GoldenPathBioSequenceLoader.java

/**
 * @param bioSequences//w  w w. j  av a2 s .  c  o m
 */
void load(BlockingQueue<BioSequence> queue) {
    log.debug("Entering 'load' ");

    StopWatch timer = new StopWatch();
    timer.start();

    int count = 0;
    int cpt = 0;
    double secspt = 0.0;

    Collection<BioSequence> bioSequencesToPersist = new ArrayList<BioSequence>();
    try {
        while (!(producerDone && queue.isEmpty())) {
            BioSequence sequence = queue.poll();

            if (sequence == null) {
                continue;
            }

            sequence.getSequenceDatabaseEntry().setExternalDatabase(genbank);
            sequence.setTaxon(taxon);
            bioSequencesToPersist.add(sequence);
            if (++count % BATCH_SIZE == 0) {
                bioSequenceService.create(bioSequencesToPersist);
                bioSequencesToPersist.clear();
            }

            // just some timing information.
            if (count % 1000 == 0) {
                cpt++;
                timer.stop();
                double secsperthousand = timer.getTime() / 1000.0;
                secspt += secsperthousand;
                double meanspt = secspt / cpt;

                String progString = "Processed and loaded " + count + " sequences, last one was "
                        + sequence.getName() + " (" + secsperthousand + "s for last 1000, mean per 1000 ="
                        + String.format("%.1f", meanspt) + "s)";
                log.info(progString);
                timer.reset();
                timer.start();
            }

        }
    } catch (Exception e) {
        consumerDone = true;
        throw new RuntimeException(e);
    }

    // finish up.
    bioSequenceService.create(bioSequencesToPersist);

    log.info("Loaded total of " + count + " sequences");
    consumerDone = true;

}

From source file:de.hybris.platform.category.impl.DefaultCategoryService.java

@Override
public List<CategoryModel> getCategoryPathForProduct(final ProductModel product,
        final Class... includeOnlyCategories) {
    final List<CategoryModel> result = new ArrayList<CategoryModel>();
    final Collection<CategoryModel> currentLevel = new ArrayList<CategoryModel>();
    currentLevel.addAll(product.getSupercategories());

    while (!CollectionUtils.isEmpty(currentLevel)) {
        CategoryModel categoryModel = null;
        for (final CategoryModel category : currentLevel) {
            if (categoryModel == null && shouldAddPathElement(category.getClass(), includeOnlyCategories)) {
                categoryModel = category;
            }/*from   ww w .  ja va 2s.  c  om*/
        }
        currentLevel.clear();
        if (categoryModel != null) {
            currentLevel.addAll(categoryModel.getSupercategories());
            result.add(categoryModel);
        }
    }

    Collections.reverse(result);
    return result;
}

From source file:org.icescrum.core.security.MethodScrumExpressionHandler.java

@SuppressWarnings("unchecked")
public Object filter(Object filterTarget, Expression filterExpression, EvaluationContext ctx) {
    MethodScrumExpressionRoot rootObject = (MethodScrumExpressionRoot) ctx.getRootObject().getValue();
    List retainList;//from   w  w  w  .j a v a 2  s.  co m

    if (logger.isDebugEnabled()) {
        logger.debug("Filtering with expression: " + filterExpression.getExpressionString());
    }

    if (filterTarget instanceof Collection) {
        Collection collection = (Collection) filterTarget;
        retainList = new ArrayList(collection.size());

        if (logger.isDebugEnabled()) {
            logger.debug("Filtering collection with " + collection.size() + " elements");
        }
        for (Object filterObject : (Collection) filterTarget) {
            rootObject.setFilterObject(filterObject);

            if (ExpressionUtils.evaluateAsBoolean(filterExpression, ctx)) {
                retainList.add(filterObject);
            }
        }

        if (logger.isDebugEnabled()) {
            logger.debug("Retaining elements: " + retainList);
        }

        collection.clear();
        collection.addAll(retainList);

        return filterTarget;
    }

    if (filterTarget.getClass().isArray()) {
        Object[] array = (Object[]) filterTarget;
        retainList = new ArrayList(array.length);

        if (logger.isDebugEnabled()) {
            logger.debug("Filtering collection with " + array.length + " elements");
        }

        for (int i = 0; i < array.length; i++) {
            rootObject.setFilterObject(array[i]);

            if (ExpressionUtils.evaluateAsBoolean(filterExpression, ctx)) {
                retainList.add(array[i]);
            }
        }

        if (logger.isDebugEnabled()) {
            logger.debug("Retaining elements: " + retainList);
        }

        Object[] filtered = (Object[]) Array.newInstance(filterTarget.getClass().getComponentType(),
                retainList.size());
        for (int i = 0; i < retainList.size(); i++) {
            filtered[i] = retainList.get(i);
        }

        return filtered;
    }

    throw new IllegalArgumentException(
            "Filter target must be a collection or array type, but was " + filterTarget);
}

From source file:org.training.storefront.breadcrumb.impl.SearchBreadcrumbBuilder.java

public List<Breadcrumb> getBreadcrumbs(final String categoryCode, final String searchText,
        final boolean emptyBreadcrumbs) throws IllegalArgumentException {
    final List<Breadcrumb> breadcrumbs = new ArrayList<>();

    if (categoryCode == null) {
        final Breadcrumb breadcrumb = new Breadcrumb("/search?text=" + getEncodedUrl(searchText),
                StringEscapeUtils.escapeHtml(searchText), (emptyBreadcrumbs ? LAST_LINK_CLASS : ""));
        breadcrumbs.add(breadcrumb);/*from w w w .  j  ava2 s .  com*/
    } else {
        // Create category hierarchy path for breadcrumb
        final List<Breadcrumb> categoryBreadcrumbs = new ArrayList<>();
        final Collection<CategoryModel> categoryModels = new ArrayList<>();
        final CategoryModel lastCategoryModel = getCommerceCategoryService().getCategoryForCode(categoryCode);
        categoryModels.addAll(lastCategoryModel.getSupercategories());
        categoryBreadcrumbs
                .add(getCategoryBreadcrumb(lastCategoryModel, (!emptyBreadcrumbs ? LAST_LINK_CLASS : "")));

        while (!categoryModels.isEmpty()) {
            final CategoryModel categoryModel = categoryModels.iterator().next();

            if (!(categoryModel instanceof ClassificationClassModel)) {
                if (categoryModel != null) {
                    categoryBreadcrumbs.add(getCategoryBreadcrumb(categoryModel));
                    categoryModels.clear();
                    categoryModels.addAll(categoryModel.getSupercategories());
                }
            } else {
                categoryModels.remove(categoryModel);
            }
        }
        Collections.reverse(categoryBreadcrumbs);
        breadcrumbs.addAll(categoryBreadcrumbs);
    }
    return breadcrumbs;
}

From source file:org.apache.james.user.jdbc.AbstractJdbcUsersRepository.java

/**
 * Produces the complete list of User names, with correct case.
 * /*www. j  ava 2 s .  c  o  m*/
 * @return a <code>List</code> of <code>String</code>s representing user
 *         names.
 */
protected List<String> listUserNames() throws UsersRepositoryException {
    Collection<User> users = getAllUsers();
    List<String> userNames = new ArrayList<String>(users.size());
    for (User user : users) {
        userNames.add(user.getUserName());
    }
    users.clear();
    return userNames;
}

From source file:com.epam.cme.storefront.breadcrumb.impl.SearchBreadcrumbBuilder.java

public List<Breadcrumb> getBreadcrumbs(final String categoryCode,
        final ProductSearchPageData<SearchStateData, ProductData> searchPageData)
        throws IllegalArgumentException {
    final List<Breadcrumb> breadcrumbs = new ArrayList<Breadcrumb>();

    final boolean emptyBreadcrumbs = CollectionUtils.isEmpty(searchPageData.getBreadcrumbs());
    Breadcrumb breadcrumb;/*from  www .java 2  s  .  co  m*/
    if (categoryCode == null) {
        breadcrumb = new Breadcrumb("/search?text=" + getEncodedUrl(searchPageData.getFreeTextSearch()),
                StringEscapeUtils.escapeHtml(searchPageData.getFreeTextSearch()),
                (emptyBreadcrumbs ? LAST_LINK_CLASS : ""));
        breadcrumbs.add(breadcrumb);
    } else {
        // Create category hierarchy path for breadcrumb
        final List<Breadcrumb> categoryBreadcrumbs = new ArrayList<Breadcrumb>();
        final Collection<CategoryModel> categoryModels = new ArrayList<CategoryModel>();
        final CategoryModel lastCategoryModel = getCommerceCategoryService().getCategoryForCode(categoryCode);
        categoryModels.addAll(lastCategoryModel.getSupercategories());
        categoryBreadcrumbs
                .add(getCategoryBreadcrumb(lastCategoryModel, (!emptyBreadcrumbs ? LAST_LINK_CLASS : "")));

        while (!categoryModels.isEmpty()) {
            final CategoryModel categoryModel = categoryModels.iterator().next();
            if (!(categoryModel instanceof ClassificationClassModel)) {
                if (categoryModel != null) {
                    categoryBreadcrumbs.add(getCategoryBreadcrumb(categoryModel));
                    categoryModels.clear();
                    categoryModels.addAll(categoryModel.getSupercategories());
                }
            }
        }
        Collections.reverse(categoryBreadcrumbs);
        breadcrumbs.addAll(categoryBreadcrumbs);
    }
    return breadcrumbs;
}

From source file:com.exxonmobile.ace.hybris.storefront.breadcrumb.impl.SearchBreadcrumbBuilder.java

public List<Breadcrumb> getBreadcrumbs(final String categoryCode, final String searchText,
        final boolean emptyBreadcrumbs) throws IllegalArgumentException {
    final List<Breadcrumb> breadcrumbs = new ArrayList<Breadcrumb>();

    if (categoryCode == null) {
        final Breadcrumb breadcrumb = new Breadcrumb("/search?text=" + getEncodedUrl(searchText),
                StringEscapeUtils.escapeHtml(searchText), (emptyBreadcrumbs ? LAST_LINK_CLASS : ""));
        breadcrumbs.add(breadcrumb);/*from   w w  w .j av  a  2  s  . c om*/
    } else {
        // Create category hierarchy path for breadcrumb
        final List<Breadcrumb> categoryBreadcrumbs = new ArrayList<Breadcrumb>();
        final Collection<CategoryModel> categoryModels = new ArrayList<CategoryModel>();
        final CategoryModel lastCategoryModel = getCommerceCategoryService().getCategoryForCode(categoryCode);
        categoryModels.addAll(lastCategoryModel.getSupercategories());
        categoryBreadcrumbs
                .add(getCategoryBreadcrumb(lastCategoryModel, (!emptyBreadcrumbs ? LAST_LINK_CLASS : "")));

        while (!categoryModels.isEmpty()) {
            final CategoryModel categoryModel = categoryModels.iterator().next();
            if (!(categoryModel instanceof ClassificationClassModel)) {
                if (categoryModel != null) {
                    categoryBreadcrumbs.add(getCategoryBreadcrumb(categoryModel));
                    categoryModels.clear();
                    categoryModels.addAll(categoryModel.getSupercategories());
                }
            } else {
                categoryModels.remove(categoryModel);
            }
        }
        Collections.reverse(categoryBreadcrumbs);
        breadcrumbs.addAll(categoryBreadcrumbs);
    }

    return breadcrumbs;
}