Example usage for com.google.common.collect Iterables size

Introduction

In this page you can find the example usage for com.google.common.collect Iterables size.

Prototype

public static int size(Iterable<?> iterable)

Source Link

Document

Returns the number of elements in iterable .

Usage

From source file:org.jclouds.functions.ExceptionToValueOrPropagate.java

@SuppressWarnings("unchecked")
@Override// w  w w . j a v  a 2 s  .  c om
public T apply(Exception from) {
    checkNotNull(from, "exception");
    List<Throwable> throwables = Throwables.getCausalChain(from);
    Iterable<E> matchingThrowables = Iterables.filter(throwables, matchingClass);
    if (Iterables.size(matchingThrowables) >= 1)
        return value;
    return (T) Throwables2.propagateOrNull(from);
}

From source file:eu.esdihumboldt.util.StructuredEquals.java

/**
 * Determines if the given objects are equal, in turn descending into
 * {@link Iterable}s and arrays and checking if the elements are equal (in
 * order)./* w  w w  . j a v a  2 s .  c  o m*/
 * 
 * @param o1 the first object
 * @param o2 the second object
 * @return if both objects are equal
 * @see #deepIterableHashCode(Object)
 */
public boolean deepIterableEquals(Object o1, Object o2) {
    if (o1 == o2) {
        return true;
    }

    Iterable<?> iterable1 = asIterable(o1);
    Iterable<?> iterable2 = asIterable(o2);
    if (iterable1 != null && iterable2 != null) {
        if (Iterables.size(iterable1) == Iterables.size(iterable2)) { // size
            // check
            Iterator<?> it1 = iterable1.iterator();
            Iterator<?> it2 = iterable2.iterator();
            while (it1.hasNext() || it2.hasNext()) {
                try {
                    if (!deepIterableEquals(it1.next(), it2.next())) {
                        return false;
                    }
                } catch (NoSuchElementException e) {
                    return false;
                }
            }

            return true;
        }

        return false;
    } else {
        return Objects.equal(o1, o2);
    }
}

From source file:org.onos.yangtools.yang.data.impl.schema.transform.base.parser.LeafNodeBaseParser.java

@SuppressWarnings("unchecked")
@Override//from w w  w  . j  a va  2 s.  c o m
public final LeafNode<?> parse(Iterable<E> elements, LeafSchemaNode schema) {
    final int size = Iterables.size(elements);
    Preconditions.checkArgument(size == 1, "Elements mapped to leaf node illegal count: %s", size);

    final E e = elements.iterator().next();
    Object value = parseLeaf(e, schema);

    NormalizedNodeAttrBuilder<YangInstanceIdentifier.NodeIdentifier, Object, LeafNode<Object>> leafBuilder = Builders
            .leafBuilder(schema);

    leafBuilder.withAttributes(getAttributes(e));

    final BuildingStrategy rawBuildingStrat = buildingStrategy;
    return (LeafNode<?>) rawBuildingStrat.build(leafBuilder.withValue(value));
}

From source file:org.jclouds.aws.ec2.binders.BindUserGroupsToIndexedFormParams.java

private void checkValidUserGroup(Object input) {
    Iterable<?> values = (Iterable<?>) input;
    long size = Iterables.size(values);
    checkArgument(size == 0 || (size == 1 && Iterables.getOnlyElement(values).equals("all")),
            "only supported UserGroup is 'all'");
}

From source file:org.eclipseday.xtext.example.entitydsl.validation.EntityDslJavaValidator.java

@Check
public void checkDuplicateAttributes(final Attribute attribute) {
    final Entity entity = EntityDslUtil.getEntity(attribute);

    // Find all the attributes with the given name
    final ImmutableSet<Attribute> attributes = EntityDslUtil.getAttributes(attribute.getName(), entity);

    // Ignore the currently edited attribute
    if (Iterables.size(attributes) > 1) {
        final String message = "Attribute with name '" + attribute.getName() + "' already exists";
        error(message, EntityDslPackage.Literals.ATTRIBUTE__NAME);
    }/*from w  ww.  j a  va 2s .  c  om*/
}

From source file:org.onos.yangtools.yang.data.impl.schema.transform.base.serializer.ListNodeBaseSerializer.java

@Override
public final Iterable<E> serialize(final ListSchemaNode schema, final N node) {
    return Iterables.concat(Iterables.transform(node.getValue(), new Function<O, Iterable<E>>() {
        @Override/*from w  w w .j  av  a 2s .  co  m*/
        public Iterable<E> apply(final O input) {
            final Iterable<E> serializedChild = getListEntryNodeSerializer().serialize(schema, input);
            final int size = Iterables.size(serializedChild);

            Preconditions.checkState(size == 1,
                    "Unexpected count of entries  for list serialized from: %s, should be 1, was: %s", input,
                    size);
            return serializedChild;
        }
    }));
}

From source file:org.jclouds.rest.functions.ReturnEmptySetOnNotFoundOr404.java

public Object apply(Exception from) {
    Iterable<ResourceNotFoundException> throwables = Iterables.filter(Throwables.getCausalChain(from),
            ResourceNotFoundException.class);
    if (Iterables.size(throwables) >= 1) {
        return ImmutableSet.of();
    } else if (rto404.apply(from)) {
        return ImmutableSet.of();
    }/*from   w  w w  .j a  v  a2  s.c  o  m*/
    return Set.class.cast(propagateOrNull(from));
}

From source file:org.jclouds.rest.functions.ReturnEmptyMapOnNotFoundOr404.java

public Object apply(Exception from) {
    Iterable<ResourceNotFoundException> throwables = Iterables.filter(Throwables.getCausalChain(from),
            ResourceNotFoundException.class);
    if (Iterables.size(throwables) >= 1) {
        return ImmutableMap.of();
    } else if (rto404.apply(from)) {
        return ImmutableMap.of();
    }/*from ww  w.  j a  v a  2  s .co m*/
    return Map.class.cast(propagateOrNull(from));
}

From source file:org.jclouds.rest.functions.ReturnEmptyFluentIterableOnNotFoundOr404.java

public Object apply(Exception from) {
    Iterable<ResourceNotFoundException> throwables = Iterables.filter(Throwables.getCausalChain(from),
            ResourceNotFoundException.class);
    if (Iterables.size(throwables) >= 1) {
        return FluentIterable.from(ImmutableSet.of());
    } else if (rto404.apply(from)) {
        return FluentIterable.from(ImmutableSet.of());
    }//w ww .j a  va 2  s .c  o m
    throw Throwables.propagate(from);
}

From source file:co.cask.cdap.data2.metadata.dataset.SortInfo.java

/**
 * Parses a {@link SortInfo} object from the specified string. The supported format is
 * <pre>[sortBy][whitespace][sortOrder]</pre>.
 *
 * @param sort the string to parse into a {@link SortInfo}. If {@code null}, {@link #DEFAULT} is returned
 * @return the parsed {@link SortInfo}//  w  w  w . j  a va  2s.c  o  m
 * @throws BadRequestException if the string does not conform to the expected format
 */
public static SortInfo of(@Nullable String sort) throws BadRequestException {
    if (Strings.isNullOrEmpty(sort)) {
        return SortInfo.DEFAULT;
    }
    Iterable<String> sortSplit = Splitter.on(SPACE_SPLIT_PATTERN).trimResults().omitEmptyStrings().split(sort);
    if (Iterables.size(sortSplit) != 2) {
        throw new BadRequestException(String.format(
                "'sort' parameter should be a space separated string containing the field ('%s' or '%s') and "
                        + "the sort order ('%s' or '%s'). Found %s.",
                AbstractSystemMetadataWriter.ENTITY_NAME_KEY, AbstractSystemMetadataWriter.CREATION_TIME_KEY,
                SortOrder.ASC, SortOrder.DESC, sort));
    }
    Iterator<String> iterator = sortSplit.iterator();
    String sortBy = iterator.next();
    String sortOrder = iterator.next();
    if (!AbstractSystemMetadataWriter.ENTITY_NAME_KEY.equalsIgnoreCase(sortBy)
            && !AbstractSystemMetadataWriter.CREATION_TIME_KEY.equalsIgnoreCase(sortBy)) {
        throw new BadRequestException(String.format("Sort field must be '%s' or '%s'. Found %s.",
                AbstractSystemMetadataWriter.ENTITY_NAME_KEY, AbstractSystemMetadataWriter.CREATION_TIME_KEY,
                sortBy));
    }
    if (!"asc".equalsIgnoreCase(sortOrder) && !"desc".equalsIgnoreCase(sortOrder)) {
        throw new BadRequestException(String.format("Sort order must be one of '%s' or '%s'. Found %s.",
                SortOrder.ASC, SortOrder.DESC, sortOrder));
    }

    return new SortInfo(sortBy, SortInfo.SortOrder.valueOf(sortOrder.toUpperCase()));
}