package it.unimi.dsi.fastutil.bytes;
import java.util.Collection;
import it.unimi.dsi.fastutil.objects.ObjectArrays;
public final class ByteCollections {
private ByteCollections() {
}
public abstract static class EmptyCollection extends AbstractByteCollection {
protected EmptyCollection() {
}
@Override
public boolean contains(byte k) {
return false;
}
@Override
public Object[] toArray() {
return ObjectArrays.EMPTY_ARRAY;
}
@Override
public ByteBidirectionalIterator iterator() {
return ByteIterators.EMPTY_ITERATOR;
}
@Override
public int size() {
return 0;
}
@Override
public void clear() {
}
@Override
public int hashCode() {
return 0;
}
@Override
public boolean equals(Object o) {
if (o == this)
return true;
if (!(o instanceof Collection))
return false;
return ((Collection<?>) o).isEmpty();
}
@Override
public boolean addAll(final Collection<? extends Byte> c) {
throw new UnsupportedOperationException();
}
@Override
public boolean removeAll(final Collection<?> c) {
throw new UnsupportedOperationException();
}
@Override
public boolean retainAll(final Collection<?> c) {
throw new UnsupportedOperationException();
}
@Override
public boolean addAll(final ByteCollection c) {
throw new UnsupportedOperationException();
}
@Override
public boolean removeAll(final ByteCollection c) {
throw new UnsupportedOperationException();
}
@Override
public boolean retainAll(final ByteCollection c) {
throw new UnsupportedOperationException();
}
}
public static class SynchronizedCollection implements ByteCollection, java.io.Serializable {
private static final long serialVersionUID = -7046029254386353129L;
protected final ByteCollection collection;
protected final Object sync;
protected SynchronizedCollection(final ByteCollection c, final Object sync) {
if (c == null)
throw new NullPointerException();
this.collection = c;
this.sync = sync;
}
protected SynchronizedCollection(final ByteCollection c) {
if (c == null)
throw new NullPointerException();
this.collection = c;
this.sync = this;
}
@Override
public boolean add(final byte k) {
synchronized (sync) {
return collection.add(k);
}
}
@Override
public boolean contains(final byte k) {
synchronized (sync) {
return collection.contains(k);
}
}
@Override
public boolean rem(final byte k) {
synchronized (sync) {
return collection.rem(k);
}
}
@Override
public int size() {
synchronized (sync) {
return collection.size();
}
}
@Override
public boolean isEmpty() {
synchronized (sync) {
return collection.isEmpty();
}
}
@Override
public byte[] toByteArray() {
synchronized (sync) {
return collection.toByteArray();
}
}
@Override
public Object[] toArray() {
synchronized (sync) {
return collection.toArray();
}
}
@Deprecated
@Override
public byte[] toByteArray(final byte[] a) {
return toArray(a);
}
@Override
public byte[] toArray(final byte[] a) {
synchronized (sync) {
return collection.toArray(a);
}
}
@Override
public boolean addAll(final ByteCollection c) {
synchronized (sync) {
return collection.addAll(c);
}
}
@Override
public boolean containsAll(final ByteCollection c) {
synchronized (sync) {
return collection.containsAll(c);
}
}
@Override
public boolean removeAll(final ByteCollection c) {
synchronized (sync) {
return collection.removeAll(c);
}
}
@Override
public boolean removeIf(final java.util.function.IntPredicate filter) {
synchronized (sync) {
return collection.removeIf(filter);
}
}
@Override
public boolean retainAll(final ByteCollection c) {
synchronized (sync) {
return collection.retainAll(c);
}
}
@Override
@Deprecated
public boolean add(final Byte k) {
synchronized (sync) {
return collection.add(k);
}
}
@Override
@Deprecated
public boolean contains(final Object k) {
synchronized (sync) {
return collection.contains(k);
}
}
@Override
@Deprecated
public boolean remove(final Object k) {
synchronized (sync) {
return collection.remove(k);
}
}
@Override
public <T> T[] toArray(final T[] a) {
synchronized (sync) {
return collection.toArray(a);
}
}
@Override
public ByteIterator iterator() {
return collection.iterator();
}
@Override
public boolean addAll(final Collection<? extends Byte> c) {
synchronized (sync) {
return collection.addAll(c);
}
}
@Override
public boolean containsAll(final Collection<?> c) {
synchronized (sync) {
return collection.containsAll(c);
}
}
@Override
public boolean removeAll(final Collection<?> c) {
synchronized (sync) {
return collection.removeAll(c);
}
}
@Override
public boolean retainAll(final Collection<?> c) {
synchronized (sync) {
return collection.retainAll(c);
}
}
@Override
public void clear() {
synchronized (sync) {
collection.clear();
}
}
@Override
public String toString() {
synchronized (sync) {
return collection.toString();
}
}
@Override
public int hashCode() {
synchronized (sync) {
return collection.hashCode();
}
}
@Override
public boolean equals(final Object o) {
if (o == this)
return true;
synchronized (sync) {
return collection.equals(o);
}
}
private void writeObject(java.io.ObjectOutputStream s) throws java.io.IOException {
synchronized (sync) {
s.defaultWriteObject();
}
}
}
public static ByteCollection synchronize(final ByteCollection c) {
return new SynchronizedCollection(c);
}
public static ByteCollection synchronize(final ByteCollection c, final Object sync) {
return new SynchronizedCollection(c, sync);
}
public static class UnmodifiableCollection implements ByteCollection, java.io.Serializable {
private static final long serialVersionUID = -7046029254386353129L;
protected final ByteCollection collection;
protected UnmodifiableCollection(final ByteCollection c) {
if (c == null)
throw new NullPointerException();
this.collection = c;
}
@Override
public boolean add(final byte k) {
throw new UnsupportedOperationException();
}
@Override
public boolean rem(final byte k) {
throw new UnsupportedOperationException();
}
@Override
public int size() {
return collection.size();
}
@Override
public boolean isEmpty() {
return collection.isEmpty();
}
@Override
public boolean contains(final byte o) {
return collection.contains(o);
}
@Override
public ByteIterator iterator() {
return ByteIterators.unmodifiable(collection.iterator());
}
@Override
public void clear() {
throw new UnsupportedOperationException();
}
@Override
public <T> T[] toArray(final T[] a) {
return collection.toArray(a);
}
@Override
public Object[] toArray() {
return collection.toArray();
}
@Override
public boolean containsAll(Collection<?> c) {
return collection.containsAll(c);
}
@Override
public boolean addAll(Collection<? extends Byte> c) {
throw new UnsupportedOperationException();
}
@Override
public boolean removeAll(Collection<?> c) {
throw new UnsupportedOperationException();
}
@Override
public boolean retainAll(Collection<?> c) {
throw new UnsupportedOperationException();
}
@Override
@Deprecated
public boolean add(final Byte k) {
throw new UnsupportedOperationException();
}
@Override
@Deprecated
public boolean contains(final Object k) {
return collection.contains(k);
}
@Override
@Deprecated
public boolean remove(final Object k) {
throw new UnsupportedOperationException();
}
@Override
public byte[] toByteArray() {
return collection.toByteArray();
}
@Deprecated
@Override
public byte[] toByteArray(final byte[] a) {
return toArray(a);
}
@Override
public byte[] toArray(final byte[] a) {
return collection.toArray(a);
}
@Override
public boolean containsAll(ByteCollection c) {
return collection.containsAll(c);
}
@Override
public boolean addAll(ByteCollection c) {
throw new UnsupportedOperationException();
}
@Override
public boolean removeAll(ByteCollection c) {
throw new UnsupportedOperationException();
}
@Override
public boolean retainAll(ByteCollection c) {
throw new UnsupportedOperationException();
}
@Override
public String toString() {
return collection.toString();
}
@Override
public int hashCode() {
return collection.hashCode();
}
@Override
public boolean equals(final Object o) {
if (o == this)
return true;
return collection.equals(o);
}
}
public static ByteCollection unmodifiable(final ByteCollection c) {
return new UnmodifiableCollection(c);
}
public static class IterableCollection extends AbstractByteCollection implements java.io.Serializable {
private static final long serialVersionUID = -7046029254386353129L;
protected final ByteIterable iterable;
protected IterableCollection(final ByteIterable iterable) {
if (iterable == null)
throw new NullPointerException();
this.iterable = iterable;
}
@Override
public int size() {
int c = 0;
final ByteIterator iterator = iterator();
while (iterator.hasNext()) {
iterator.nextByte();
c++;
}
return c;
}
@Override
public boolean isEmpty() {
return !iterable.iterator().hasNext();
}
@Override
public ByteIterator iterator() {
return iterable.iterator();
}
}
public static ByteCollection asCollection(final ByteIterable iterable) {
if (iterable instanceof ByteCollection)
return (ByteCollection) iterable;
return new IterableCollection(iterable);
}
}