package it.unimi.dsi.fastutil.objects;
import it.unimi.dsi.fastutil.BigList;
import it.unimi.dsi.fastutil.BigArrays;
import java.util.Collection;
import java.util.List;
import java.util.Random;
public final class ObjectBigLists {
private ObjectBigLists() {
}
public static <K> ObjectBigList<K> shuffle(final ObjectBigList<K> l, final Random random) {
for (long i = l.size64(); i-- != 0;) {
final long p = (random.nextLong() & 0x7FFFFFFFFFFFFFFFL) % (i + 1);
final K t = l.get(i);
l.set(i, l.get(p));
l.set(p, t);
}
return l;
}
public static class EmptyBigList<K> extends ObjectCollections.EmptyCollection<K>
implements
ObjectBigList<K>,
java.io.Serializable,
Cloneable {
private static final long serialVersionUID = -7046029254386353129L;
protected EmptyBigList() {
}
@Override
public K get(long i) {
throw new IndexOutOfBoundsException();
}
@Override
public boolean remove(Object k) {
throw new UnsupportedOperationException();
}
@Override
public K remove(long i) {
throw new UnsupportedOperationException();
}
@Override
public void add(final long index, final K k) {
throw new UnsupportedOperationException();
}
@Override
public K set(final long index, final K k) {
throw new UnsupportedOperationException();
}
@Override
public long indexOf(Object k) {
return -1;
}
@Override
public long lastIndexOf(Object k) {
return -1;
}
@Override
public boolean addAll(long i, Collection<? extends K> c) {
throw new UnsupportedOperationException();
}
@Override
@SuppressWarnings("unchecked")
public ObjectBigListIterator<K> listIterator() {
return ObjectBigListIterators.EMPTY_BIG_LIST_ITERATOR;
}
@Override
@SuppressWarnings("unchecked")
public ObjectBigListIterator<K> iterator() {
return ObjectBigListIterators.EMPTY_BIG_LIST_ITERATOR;
}
@Override
@SuppressWarnings("unchecked")
public ObjectBigListIterator<K> listIterator(long i) {
if (i == 0)
return ObjectBigListIterators.EMPTY_BIG_LIST_ITERATOR;
throw new IndexOutOfBoundsException(String.valueOf(i));
}
@Override
public ObjectBigList<K> subList(long from, long to) {
if (from == 0 && to == 0)
return this;
throw new IndexOutOfBoundsException();
}
@Override
public void getElements(long from, Object[][] a, long offset, long length) {
BigArrays.ensureOffsetLength(a, offset, length);
if (from != 0)
throw new IndexOutOfBoundsException();
}
@Override
public void removeElements(long from, long to) {
throw new UnsupportedOperationException();
}
@Override
public void addElements(long index, final K a[][], long offset, long length) {
throw new UnsupportedOperationException();
}
@Override
public void addElements(long index, final K a[][]) {
throw new UnsupportedOperationException();
}
@Override
public void size(long s) {
throw new UnsupportedOperationException();
}
@Override
public long size64() {
return 0;
}
@Override
public int compareTo(final BigList<? extends K> o) {
if (o == this)
return 0;
return ((BigList<?>) o).isEmpty() ? 0 : -1;
}
@Override
public Object clone() {
return EMPTY_BIG_LIST;
}
@Override
public int hashCode() {
return 1;
}
@Override
@SuppressWarnings("rawtypes")
public boolean equals(Object o) {
return o instanceof BigList && ((BigList) o).isEmpty();
}
@Override
public String toString() {
return "[]";
}
private Object readResolve() {
return EMPTY_BIG_LIST;
}
}
@SuppressWarnings("rawtypes")
public static final EmptyBigList EMPTY_BIG_LIST = new EmptyBigList();
@SuppressWarnings("unchecked")
public static <K> ObjectBigList<K> emptyList() {
return EMPTY_BIG_LIST;
}
public static class Singleton<K> extends AbstractObjectBigList<K> implements java.io.Serializable, Cloneable {
private static final long serialVersionUID = -7046029254386353129L;
private final K element;
protected Singleton(final K element) {
this.element = element;
}
@Override
public K get(final long i) {
if (i == 0)
return element;
throw new IndexOutOfBoundsException();
}
@Override
public boolean remove(Object k) {
throw new UnsupportedOperationException();
}
@Override
public K remove(final long i) {
throw new UnsupportedOperationException();
}
@Override
public boolean contains(final Object k) {
return java.util.Objects.equals(k, element);
}
@Override
public Object[] toArray() {
Object a[] = new Object[1];
a[0] = element;
return a;
}
@Override
public ObjectBigListIterator<K> listIterator() {
return ObjectBigListIterators.singleton(element);
}
@Override
public ObjectBigListIterator<K> listIterator(long i) {
if (i > 1 || i < 0)
throw new IndexOutOfBoundsException();
ObjectBigListIterator<K> l = listIterator();
if (i == 1)
l.next();
return l;
}
@Override
@SuppressWarnings("unchecked")
public ObjectBigList<K> subList(final long from, final long to) {
ensureIndex(from);
ensureIndex(to);
if (from > to)
throw new IndexOutOfBoundsException(
"Start index (" + from + ") is greater than end index (" + to + ")");
if (from != 0 || to != 1)
return EMPTY_BIG_LIST;
return this;
}
@Override
public boolean addAll(long i, Collection<? extends K> c) {
throw new UnsupportedOperationException();
}
@Override
public boolean addAll(final Collection<? extends K> 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 void clear() {
throw new UnsupportedOperationException();
}
@Override
public long size64() {
return 1;
}
@Override
public Object clone() {
return this;
}
}
public static <K> ObjectBigList<K> singleton(final K element) {
return new Singleton<>(element);
}
public static class SynchronizedBigList<K> extends ObjectCollections.SynchronizedCollection<K>
implements
ObjectBigList<K>,
java.io.Serializable {
private static final long serialVersionUID = -7046029254386353129L;
protected final ObjectBigList<K> list;
protected SynchronizedBigList(final ObjectBigList<K> l, final Object sync) {
super(l, sync);
this.list = l;
}
protected SynchronizedBigList(final ObjectBigList<K> l) {
super(l);
this.list = l;
}
@Override
public K get(final long i) {
synchronized (sync) {
return list.get(i);
}
}
@Override
public K set(final long i, final K k) {
synchronized (sync) {
return list.set(i, k);
}
}
@Override
public void add(final long i, final K k) {
synchronized (sync) {
list.add(i, k);
}
}
@Override
public K remove(final long i) {
synchronized (sync) {
return list.remove(i);
}
}
@Override
public long indexOf(final Object k) {
synchronized (sync) {
return list.indexOf(k);
}
}
@Override
public long lastIndexOf(final Object k) {
synchronized (sync) {
return list.lastIndexOf(k);
}
}
@Override
public boolean addAll(final long index, final Collection<? extends K> c) {
synchronized (sync) {
return list.addAll(index, c);
}
}
@Override
public void getElements(final long from, final Object a[][], final long offset, final long length) {
synchronized (sync) {
list.getElements(from, a, offset, length);
}
}
@Override
public void removeElements(final long from, final long to) {
synchronized (sync) {
list.removeElements(from, to);
}
}
@Override
public void addElements(long index, final K a[][], long offset, long length) {
synchronized (sync) {
list.addElements(index, a, offset, length);
}
}
@Override
public void addElements(long index, final K a[][]) {
synchronized (sync) {
list.addElements(index, a);
}
}
@Deprecated
@Override
public void size(final long size) {
synchronized (sync) {
list.size(size);
}
}
@Override
public long size64() {
synchronized (sync) {
return list.size64();
}
}
@Override
public ObjectBigListIterator<K> iterator() {
return list.listIterator();
}
@Override
public ObjectBigListIterator<K> listIterator() {
return list.listIterator();
}
@Override
public ObjectBigListIterator<K> listIterator(final long i) {
return list.listIterator(i);
}
@Override
public ObjectBigList<K> subList(final long from, final long to) {
synchronized (sync) {
return synchronize(list.subList(from, to), sync);
}
}
@Override
public boolean equals(final Object o) {
if (o == this)
return true;
synchronized (sync) {
return list.equals(o);
}
}
@Override
public int hashCode() {
synchronized (sync) {
return list.hashCode();
}
}
@Override
public int compareTo(final BigList<? extends K> o) {
synchronized (sync) {
return list.compareTo(o);
}
}
}
public static <K> ObjectBigList<K> synchronize(final ObjectBigList<K> l) {
return new SynchronizedBigList<>(l);
}
public static <K> ObjectBigList<K> synchronize(final ObjectBigList<K> l, final Object sync) {
return new SynchronizedBigList<>(l, sync);
}
public static class UnmodifiableBigList<K> extends ObjectCollections.UnmodifiableCollection<K>
implements
ObjectBigList<K>,
java.io.Serializable {
private static final long serialVersionUID = -7046029254386353129L;
protected final ObjectBigList<K> list;
protected UnmodifiableBigList(final ObjectBigList<K> l) {
super(l);
this.list = l;
}
@Override
public K get(final long i) {
return list.get(i);
}
@Override
public K set(final long i, final K k) {
throw new UnsupportedOperationException();
}
@Override
public void add(final long i, final K k) {
throw new UnsupportedOperationException();
}
@Override
public K remove(final long i) {
throw new UnsupportedOperationException();
}
@Override
public long indexOf(final Object k) {
return list.indexOf(k);
}
@Override
public long lastIndexOf(final Object k) {
return list.lastIndexOf(k);
}
@Override
public boolean addAll(final long index, final Collection<? extends K> c) {
throw new UnsupportedOperationException();
}
@Override
public void getElements(final long from, final Object a[][], final long offset, final long length) {
list.getElements(from, a, offset, length);
}
@Override
public void removeElements(final long from, final long to) {
throw new UnsupportedOperationException();
}
@Override
public void addElements(long index, final K a[][], long offset, long length) {
throw new UnsupportedOperationException();
}
@Override
public void addElements(long index, final K a[][]) {
throw new UnsupportedOperationException();
}
@Deprecated
@Override
public void size(final long size) {
list.size(size);
}
@Override
public long size64() {
return list.size64();
}
@Override
public ObjectBigListIterator<K> iterator() {
return listIterator();
}
@Override
public ObjectBigListIterator<K> listIterator() {
return ObjectBigListIterators.unmodifiable(list.listIterator());
}
@Override
public ObjectBigListIterator<K> listIterator(final long i) {
return ObjectBigListIterators.unmodifiable(list.listIterator(i));
}
@Override
public ObjectBigList<K> subList(final long from, final long to) {
return unmodifiable(list.subList(from, to));
}
@Override
public boolean equals(final Object o) {
if (o == this)
return true;
return list.equals(o);
}
@Override
public int hashCode() {
return list.hashCode();
}
@Override
public int compareTo(final BigList<? extends K> o) {
return list.compareTo(o);
}
}
public static <K> ObjectBigList<K> unmodifiable(final ObjectBigList<K> l) {
return new UnmodifiableBigList<>(l);
}
public static class ListBigList<K> extends AbstractObjectBigList<K> implements java.io.Serializable {
private static final long serialVersionUID = -7046029254386353129L;
private final ObjectList<K> list;
protected ListBigList(final ObjectList<K> list) {
this.list = list;
}
private int intIndex(long index) {
if (index >= Integer.MAX_VALUE)
throw new IndexOutOfBoundsException("This big list is restricted to 32-bit indices");
return (int) index;
}
@Override
public long size64() {
return list.size();
}
@Override
public void size(final long size) {
list.size(intIndex(size));
}
@Override
public ObjectBigListIterator<K> iterator() {
return ObjectBigListIterators.asBigListIterator(list.iterator());
}
@Override
public ObjectBigListIterator<K> listIterator() {
return ObjectBigListIterators.asBigListIterator(list.listIterator());
}
@Override
public ObjectBigListIterator<K> listIterator(final long index) {
return ObjectBigListIterators.asBigListIterator(list.listIterator(intIndex(index)));
}
@Override
public boolean addAll(final long index, final Collection<? extends K> c) {
return list.addAll(intIndex(index), c);
}
@Override
public ObjectBigList<K> subList(long from, long to) {
return new ListBigList<>(list.subList(intIndex(from), intIndex(to)));
}
@Override
public boolean contains(final Object key) {
return list.contains(key);
}
@Override
public Object[] toArray() {
return list.toArray();
}
@Override
public void removeElements(final long from, final long to) {
list.removeElements(intIndex(from), intIndex(to));
}
@Override
public void add(long index, K key) {
list.add(intIndex(index), key);
}
@Override
public boolean add(K key) {
return list.add(key);
}
@Override
public K get(long index) {
return list.get(intIndex(index));
}
@Override
public long indexOf(Object k) {
return list.indexOf(k);
}
@Override
public long lastIndexOf(Object k) {
return list.lastIndexOf(k);
}
@Override
public K remove(long index) {
return list.remove(intIndex(index));
}
@Override
public K set(long index, K k) {
return list.set(intIndex(index), k);
}
@Override
public boolean isEmpty() {
return list.isEmpty();
}
@Override
public <T> T[] toArray(T[] a) {
return list.toArray(a);
}
@Override
public boolean containsAll(Collection<?> c) {
return list.containsAll(c);
}
@Override
public boolean addAll(Collection<? extends K> c) {
return list.addAll(c);
}
@Override
public boolean removeAll(Collection<?> c) {
return list.removeAll(c);
}
@Override
public boolean retainAll(Collection<?> c) {
return list.retainAll(c);
}
@Override
public void clear() {
list.clear();
}
@Override
public int hashCode() {
return list.hashCode();
}
}
public static <K> ObjectBigList<K> asBigList(final ObjectList<K> list) {
return new ListBigList<>(list);
}
}