Example usage for java.util Collection size

Introduction

In this page you can find the example usage for java.util Collection size.

Prototype

int size();

Source Link

Document

Returns the number of elements in this collection.

Usage

From source file:com.goncalomb.bukkit.bkglib.namemaps.PotionEffectsMap.java

public static List<String> getNamez(Collection<PotionEffect> effects) {
    ArrayList<String> names = new ArrayList<String>(effects.size());
    for (PotionEffect effect : effects) {
        names.add(getName(effect.getType()));
    }/*from  w w w. ja  v  a  2  s  . c o m*/
    return names;
}

From source file:edu.harvard.med.screensaver.util.CollectionUtils.java

@SuppressWarnings("unchecked")
public static <I> Set<I> entityIds(Collection<? extends Entity> entities) {
    Set<I> ids = new HashSet<I>(entities.size());
    for (Entity entity : entities) {
        ids.add((I) entity.getEntityId());
    }//from  w  ww  .  j av  a  2  s  .  com
    return ids;
}

From source file:Main.java

@SuppressWarnings("unchecked")
public static <T> T[] toArray(Collection<T> c) {
    if (c == null) {
        return null;
    } else {//  ww  w .ja  v a 2 s  .  co m
        T[] result = (T[]) Array.newInstance(c.getClass().getComponentType(), c.size());
        int i = 0;
        for (T r : c) {
            result[i] = r;
            i++;
        }
        return result;
    }
}

From source file:com.vrem.util.EnumUtils.java

public static <T extends Enum, U> Predicate<U> predicate(@NonNull Class<T> enumType,
        @NonNull Collection<T> input, @NonNull Transformer<T, Predicate<U>> transformer) {
    if (input.size() >= values(enumType).size()) {
        return PredicateUtils.truePredicate();
    }/*ww  w  . ja  v a  2  s  . co  m*/
    return PredicateUtils.anyPredicate(CollectionUtils.collect(input, transformer));
}

From source file:Main.java

public static <T extends Comparable<T>> int compareAsSet(Collection<? extends T> set1,
        Collection<? extends T> set2) {
    int res = Ints.compare(set1.size(), set2.size());
    if (res != 0)
        return res;

    SortedSet<? extends T> sortedSet1 = toNaturalSortedSet(set1);
    SortedSet<? extends T> sortedSet2 = toNaturalSortedSet(set2);

    Iterator<? extends T> elements2 = set2.iterator();
    for (T element1 : set1) {
        res = element1.compareTo(elements2.next());
        if (res != 0)
            return res;
    }//from w  ww. j  a  v a  2  s.  c o  m
    return 0;
}

From source file:Main.java

/**
 * <p>//from   w ww .j av  a2  s.com
 * Checks if the given two {@link Collection}s contains the same elements
 * in any order.
 * </p>
 * <p>
 * Empty {@link Collection}s and {@code null} parameters are treated as equal.
 * </p> 
 * @param first The first {@link Collection}.
 * @param second The second {@link Collection}.
 * @return {@code true} both {@link Collection}s contains same elements, {@code false} {@link Collection}s are different.
 */
public static <T> boolean containsSame(Collection<T> first, Collection<T> second) {
    if (first != null) {
        if (second != null) {
            if (first.size() == second.size()) {
                Collection<T> firstCopy = new LinkedList<T>(first);
                boolean same = true;
                Iterator<T> secondIter = second.iterator();
                while (same && secondIter.hasNext()) {
                    T secondNext = secondIter.next();
                    same = firstCopy.remove(secondNext);
                }
                return same;
            } else {
                return false;
            }
        } else {
            return first.size() == 0;
        }
    } else {
        return second == null || second.size() == 0;
    }
}

From source file:Main.java

public static <T> int compareAsSet(@Nonnull Comparator<? super T> elementComparator,
        @Nonnull Collection<? extends T> list1, @Nonnull Collection<? extends T> list2) {
    int res = Ints.compare(list1.size(), list2.size());
    if (res != 0)
        return res;

    SortedSet<? extends T> set1 = toSortedSet(elementComparator, list1);
    SortedSet<? extends T> set2 = toSortedSet(elementComparator, list2);

    Iterator<? extends T> elements2 = set2.iterator();
    for (T element1 : set1) {
        res = elementComparator.compare(element1, elements2.next());
        if (res != 0)
            return res;
    }/*from   w  w  w . j a  v a2  s  . co m*/
    return 0;
}

From source file:com.ebay.logstorm.server.utils.LogStormServerDebug.java

private static File findAssemblyJarFile() {
    String projectRootDir = System.getProperty("user.dir");
    String assemblyModuleTargeDirPath = projectRootDir + "/assembly/target/";
    File assemblyTargeDirFile = new File(assemblyModuleTargeDirPath);
    if (!assemblyTargeDirFile.exists()) {
        throw new IllegalStateException(
                assemblyModuleTargeDirPath + " not found, please execute 'mvn install -DskipTests' under "
                        + projectRootDir + " to build the project firstly and retry");
    }/* w ww.jav a  2  s  .c  om*/
    String jarFileNameWildCard = "logstorm-assembly-*.jar";
    Collection<File> jarFiles = FileUtils.listFiles(assemblyTargeDirFile,
            new WildcardFileFilter(jarFileNameWildCard), TrueFileFilter.INSTANCE);
    if (jarFiles.size() == 0) {
        throw new IllegalStateException(
                "jar is not found, please execute 'mvn install -DskipTests' from project root firstly and retry");
    }
    File jarFile = jarFiles.iterator().next();
    LOG.debug("Found pipeline.jar: {}", jarFile.getAbsolutePath());
    return jarFile;
}

From source file:Main.java

public static <T> int compareAsSet(Comparator<? super T> elementComparator, Collection<? extends T> list1,
        Collection<? extends T> list2) {
    int res = Ints.compare(list1.size(), list2.size());
    if (res != 0)
        return res;

    SortedSet<? extends T> set1 = toSortedSet(elementComparator, list1);
    SortedSet<? extends T> set2 = toSortedSet(elementComparator, list2);

    Iterator<? extends T> elements2 = set2.iterator();
    for (T element1 : set1) {
        res = elementComparator.compare(element1, elements2.next());
        if (res != 0)
            return res;
    }/*from  ww  w .  j a v  a2  s.  c  o  m*/
    return 0;
}

From source file:com.goncalomb.bukkit.bkglib.namemaps.PotionEffectsMap.java

public static List<String> getNames(Collection<PotionEffectType> effects) {
    ArrayList<String> names = new ArrayList<String>(effects.size());
    for (PotionEffectType effect : effects) {
        names.add(getName(effect));/*w w w . j  ava 2  s . c  o  m*/
    }
    return names;
}