Example usage for java.util List retainAll

Introduction

In this page you can find the example usage for java.util List retainAll.

Prototype

boolean retainAll(Collection<?> c);

Source Link

Document

Retains only the elements in this list that are contained in the specified collection (optional operation).

Usage

From source file:org.axe.util.CollectionUtil.java

@SuppressWarnings({ "unchecked", "rawtypes" })
public static <T> List<T> intersect(List ls, List ls2) {
    List<T> list = new ArrayList(Arrays.asList(new Object[ls.size()]));
    Collections.copy(list, ls);//from www.j av  a2s.  com
    list.retainAll(ls2);
    return list;
}

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From source file:Main.java

public static <T> T[] intersection(@NonNull final T[] array1, @NonNull final T[] array2) {
    final List<T> list1 = new ArrayList<>();
    Collections.addAll(list1, array1);
    final List<T> list2 = new ArrayList<>();
    Collections.addAll(list2, array2);
    list1.retainAll(list2);
    //noinspection unchecked
    return list1.toArray((T[]) Array.newInstance(array1.getClass().getComponentType(), list1.size()));
}

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From source file:Main.java

public static long[] intersection(final long[] array1, final long[] array2) {
    if (array1 == null || array2 == null)
        return new long[0];
    final List<Long> list1 = new ArrayList<Long>();
    for (final long item : array1) {
        list1.add(item);/*from   w w  w  .  ja  v a2 s .c om*/
    }
    final List<Long> list2 = new ArrayList<Long>();
    for (final long item : array2) {
        list2.add(item);
    }
    list1.retainAll(list2);
    return fromList(list1);
}

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From source file:Main.java

public static long[] intersection(final long[] array1, final long[] array2) {
    if (array1 == null || array2 == null)
        return new long[0];
    final List<Long> list1 = new ArrayList<>();
    for (final long item : array1) {
        list1.add(item);/* www .java2  s . com*/
    }
    final List<Long> list2 = new ArrayList<>();
    for (final long item : array2) {
        list2.add(item);
    }
    list1.retainAll(list2);
    return fromList(list1);
}

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From source file:org.apache.asterix.optimizer.rules.util.EquivalenceClassUtils.java

/**
 * Find the header variables that can imply all subplan-local live variables at <code>operator</code>.
 *
 * @param operator/*from  w ww .ja v  a2 s  .c o m*/
 *            the operator of interest.
 * @param usedForCorrelationJoin
 *            whether the generated primary key will be used for a join that recovers the correlation.
 * @param context
 *            the optimization context.
 * @return Pair<ILogicalOperator, Set<LogicalVariable>>, an operator (which is either the original parameter
 *         <code>operator</code> or a newly created operator) and
 *         a set of primary key variables at the operator.
 * @throws AlgebricksException
 */
public static Pair<ILogicalOperator, Set<LogicalVariable>> findOrCreatePrimaryKeyOpAndVariables(
        ILogicalOperator operator, boolean usedForCorrelationJoin, IOptimizationContext context)
        throws AlgebricksException {
    computePrimaryKeys(operator, context);

    Set<LogicalVariable> liveVars = new HashSet<>();
    VariableUtilities.getSubplanLocalLiveVariables(operator, liveVars);

    Set<LogicalVariable> primaryKeyVars = new HashSet<>();
    Set<LogicalVariable> noKeyVars = new HashSet<>();
    for (LogicalVariable liveVar : liveVars) {
        List<LogicalVariable> keyVars = context.findPrimaryKey(liveVar);
        if (keyVars != null) {
            keyVars.retainAll(liveVars);
        }
        if ((keyVars == null || keyVars.isEmpty())) {
            noKeyVars.add(liveVar);
        } else {
            primaryKeyVars.addAll(keyVars);
        }
    }
    primaryKeyVars.retainAll(liveVars);
    if (primaryKeyVars.containsAll(noKeyVars)) {
        return new Pair<ILogicalOperator, Set<LogicalVariable>>(operator, primaryKeyVars);
    } else {
        LogicalVariable assignVar = context.newVar();
        ILogicalOperator assignOp = new AssignOperator(assignVar,
                new MutableObject<ILogicalExpression>(new StatefulFunctionCallExpression(
                        FunctionUtil.getFunctionInfo(AsterixBuiltinFunctions.CREATE_QUERY_UID), null)));
        OperatorPropertiesUtil.markMovable(assignOp, !usedForCorrelationJoin);
        assignOp.getInputs().add(new MutableObject<ILogicalOperator>(operator));
        context.addPrimaryKey(new FunctionalDependency(Collections.singletonList(assignVar),
                new ArrayList<LogicalVariable>(liveVars)));
        context.computeAndSetTypeEnvironmentForOperator(assignOp);
        return new Pair<ILogicalOperator, Set<LogicalVariable>>(assignOp, Collections.singleton(assignVar));
    }
}

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From source file:org.carrot2.workbench.editors.factory.EditorFactory.java

/**
 * Sort attribute editors based on various criteria (type proximity, number
 * of matching and available constraints).
 *///from   www  .  j av a2  s. c  o  m
private static List<TypeEditorWrapper> sortTypeEditors(List<TypeEditorWrapper> editors,
        final AttributeDescriptor attribute) {
    final List<String> annotationNames = Lists.newArrayList();
    for (Annotation ann : attribute.constraints) {
        annotationNames.add(ann.annotationType().getName());
    }

    final HashMap<TypeEditorWrapper, Integer> matchingConstraints = Maps.newHashMap();
    for (TypeEditorWrapper t : editors) {
        List<String> matches = Lists.newArrayList(annotationNames);
        matches.retainAll(t.constraints);
        matchingConstraints.put(t, matches.size());
    }

    final Comparator<TypeEditorWrapper> comparator = new Comparator<TypeEditorWrapper>() {
        public int compare(TypeEditorWrapper o1, TypeEditorWrapper o2) {
            int result = distance(attribute.type, o1.attributeClass)
                    - distance(attribute.type, o2.attributeClass);

            /*
             * Consult the number of matching constraints and pick the more specific
             * editor (with more available constraints).
             */
            if (result == 0) {
                result = -(matchingConstraints.get(o1) - matchingConstraints.get(o2));
            }

            /*
             * Consult again in case of a draw and pick the editor that has more optional
             * constraints (even if they are not present).
             */
            if (result == 0) {
                result = -(o1.constraints.size() - o2.constraints.size());
            }

            return result;
        }
    };

    return Ordering.from(comparator).sortedCopy(editors);
}

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From source file:org.opencms.workplace.comparison.CmsResourceComparison.java

/**
 * Helper method that finds out, which of the properties were added, removed, modified or remain unchanged.<p>
 * //from w  ww .  j  a v  a 2  s .co  m
 * @param cms the CmsObject to use
 * @param resource1 the first resource to read the properties from
 * @param version1 the version of the first resource
 * @param resource2 the second resource to read the properties from
 * @param version2 the version of the second resource
 * 
 * @return a list of the compared attributes
 * 
 * @throws CmsException if something goes wrong
 */
public static List compareProperties(CmsObject cms, CmsResource resource1, String version1,
        CmsResource resource2, String version2) throws CmsException {

    List properties1;
    if (resource1 instanceof I_CmsHistoryResource) {
        properties1 = cms.readHistoryPropertyObjects((I_CmsHistoryResource) resource1);
    } else {
        if (Integer.parseInt(version1) < 0) {
            // switch to the online project
            CmsProject prj = cms.getRequestContext().getCurrentProject();
            try {
                cms.getRequestContext().setCurrentProject(cms.readProject(CmsProject.ONLINE_PROJECT_ID));
                properties1 = cms.readPropertyObjects(resource1, false);
            } finally {
                cms.getRequestContext().setCurrentProject(prj);
            }
        } else {
            properties1 = cms.readPropertyObjects(resource1, false);
        }
    }
    List properties2;
    if (resource2 instanceof I_CmsHistoryResource) {
        properties2 = cms.readHistoryPropertyObjects((I_CmsHistoryResource) resource2);
    } else {
        if (Integer.parseInt(version2) < 0) {
            // switch to the online project
            CmsProject prj = cms.getRequestContext().getCurrentProject();
            try {
                cms.getRequestContext().setCurrentProject(cms.readProject(CmsProject.ONLINE_PROJECT_ID));
                properties2 = cms.readPropertyObjects(resource2, false);
            } finally {
                cms.getRequestContext().setCurrentProject(prj);
            }
        } else {
            properties2 = cms.readPropertyObjects(resource2, false);
        }
    }
    List comparedProperties = new ArrayList();
    List removedProperties = new ArrayList(properties1);
    removedProperties.removeAll(properties2);
    List addedProperties = new ArrayList(properties2);
    addedProperties.removeAll(properties1);
    List retainedProperties = new ArrayList(properties2);
    retainedProperties.retainAll(properties1);
    CmsProperty prop;
    Iterator i = addedProperties.iterator();
    while (i.hasNext()) {
        prop = (CmsProperty) i.next();
        comparedProperties.add(new CmsAttributeComparison(prop.getName(), "", prop.getValue(),
                CmsResourceComparison.TYPE_ADDED));
    }
    i = removedProperties.iterator();
    while (i.hasNext()) {
        prop = (CmsProperty) i.next();
        comparedProperties.add(new CmsAttributeComparison(prop.getName(), prop.getValue(), "",
                CmsResourceComparison.TYPE_REMOVED));
    }
    i = retainedProperties.iterator();
    while (i.hasNext()) {
        prop = (CmsProperty) i.next();
        String value1 = ((CmsProperty) properties1.get(properties1.indexOf(prop))).getValue();
        String value2 = ((CmsProperty) properties2.get(properties2.indexOf(prop))).getValue();
        if (value1.equals(value2)) {
            comparedProperties.add(new CmsAttributeComparison(prop.getName(), value1, value2,
                    CmsResourceComparison.TYPE_UNCHANGED));
        } else {
            comparedProperties.add(new CmsAttributeComparison(prop.getName(), value1, value2,
                    CmsResourceComparison.TYPE_CHANGED));
        }
    }
    return comparedProperties;
}

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

/**
 * Factory method to create an ordered set using the supplied list to retain order.
 *
 * A HashSet is used for the set behaviour.
 *
 * @param list the list to decorate, must not be null
 * @throws IllegalArgumentException if list is null
 *//*from www.  j a va  2 s  .  c  om*/
public static ListOrderedSet decorate(List list) {
    Assert.notNull(list, "List must not be null");

    Set set = new HashSet(list);
    list.retainAll(set);

    return new ListOrderedSet(set, list);
}

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From source file:Main.java

public static <T> List<T> intersection(Collection<? extends Collection<T>> availableValuesByDescriptor) {
    List<T> result = new ArrayList<T>();
    Iterator<? extends Collection<T>> iterator = availableValuesByDescriptor.iterator();
    if (iterator.hasNext()) {
        Collection<T> firstSet = iterator.next();
        result.addAll(firstSet);//from w  w w .  j ava  2 s. c  om
        while (iterator.hasNext()) {
            Collection<T> next = iterator.next();
            result.retainAll(next);
        }
    }
    return result;

}

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From source file:YexTool.java

private static boolean isValidAttrs(OpenRtb.BidResponse.SeatBid.Bid bid,
        Map<String, List<Integer>> impId2Battributes) {
    List<Integer> battris = impId2Battributes.get(bid.getImpid());
    List<Integer> attris = new ArrayList<Integer>(bid.getExtension(OpenRtbYDExtForDsp.attri));
    boolean attrisIsEmpty = attris.isEmpty();
    attris.retainAll(battris);
    boolean attrisNotBlocked = attris.isEmpty();

    boolean valid = !attrisIsEmpty && attrisNotBlocked;

    if (attrisIsEmpty) {
        logger.warn("Attri is empty! Bid: \n" + bid);
    } else if (!attrisNotBlocked) {
        logger.warn("Attri is blocked! Bid: \n" + bid);
    }//  w w  w  . ja  v a2 s  .c  o  m
    return valid;
}

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