package it.unimi.dsi.fastutil.objects;
import it.unimi.dsi.fastutil.objects.ObjectIterator;
import it.unimi.dsi.fastutil.objects.ObjectIterable;
import it.unimi.dsi.fastutil.objects.ObjectSet;
import it.unimi.dsi.fastutil.objects.ObjectSets;
import it.unimi.dsi.fastutil.objects.ReferenceCollection;
import it.unimi.dsi.fastutil.objects.ReferenceCollections;
import it.unimi.dsi.fastutil.objects.ReferenceSets;
import java.util.Map;
import java.util.function.Consumer;
import it.unimi.dsi.fastutil.objects.Object2ReferenceMap.FastEntrySet;
public final class Object2ReferenceMaps {
private Object2ReferenceMaps() {
}
@SuppressWarnings("unchecked")
public static <K, V> ObjectIterator<Object2ReferenceMap.Entry<K, V>> fastIterator(Object2ReferenceMap<K, V> map) {
final ObjectSet<Object2ReferenceMap.Entry<K, V>> entries = map.object2ReferenceEntrySet();
return entries instanceof Object2ReferenceMap.FastEntrySet
? ((Object2ReferenceMap.FastEntrySet<K, V>) entries).fastIterator()
: entries.iterator();
}
@SuppressWarnings("unchecked")
public static <K, V> void fastForEach(Object2ReferenceMap<K, V> map,
final Consumer<? super Object2ReferenceMap.Entry<K, V>> consumer) {
final ObjectSet<Object2ReferenceMap.Entry<K, V>> entries = map.object2ReferenceEntrySet();
if (entries instanceof Object2ReferenceMap.FastEntrySet)
((Object2ReferenceMap.FastEntrySet<K, V>) entries).fastForEach(consumer);
else
entries.forEach(consumer);
}
@SuppressWarnings("unchecked")
public static <K, V> ObjectIterable<Object2ReferenceMap.Entry<K, V>> fastIterable(Object2ReferenceMap<K, V> map) {
final ObjectSet<Object2ReferenceMap.Entry<K, V>> entries = map.object2ReferenceEntrySet();
return entries instanceof Object2ReferenceMap.FastEntrySet
? new ObjectIterable<Object2ReferenceMap.Entry<K, V>>() {
public ObjectIterator<Object2ReferenceMap.Entry<K, V>> iterator() {
return ((Object2ReferenceMap.FastEntrySet<K, V>) entries).fastIterator();
}
public void forEach(final Consumer<? super Object2ReferenceMap.Entry<K, V>> consumer) {
((Object2ReferenceMap.FastEntrySet<K, V>) entries).fastForEach(consumer);
}
}
: entries;
}
public static class EmptyMap<K, V> extends Object2ReferenceFunctions.EmptyFunction<K, V>
implements
Object2ReferenceMap<K, V>,
java.io.Serializable,
Cloneable {
private static final long serialVersionUID = -7046029254386353129L;
protected EmptyMap() {
}
@Override
public boolean containsValue(final Object v) {
return false;
}
@Override
public void putAll(final Map<? extends K, ? extends V> m) {
throw new UnsupportedOperationException();
}
@SuppressWarnings("unchecked")
@Override
public ObjectSet<Object2ReferenceMap.Entry<K, V>> object2ReferenceEntrySet() {
return ObjectSets.EMPTY_SET;
}
@SuppressWarnings("unchecked")
@Override
public ObjectSet<K> keySet() {
return ObjectSets.EMPTY_SET;
}
@SuppressWarnings("unchecked")
@Override
public ReferenceCollection<V> values() {
return ReferenceSets.EMPTY_SET;
}
@Override
public Object clone() {
return EMPTY_MAP;
}
@Override
public boolean isEmpty() {
return true;
}
@Override
public int hashCode() {
return 0;
}
@Override
public boolean equals(final Object o) {
if (!(o instanceof Map))
return false;
return ((Map<?, ?>) o).isEmpty();
}
@Override
public String toString() {
return "{}";
}
}
@SuppressWarnings("rawtypes")
public static final EmptyMap EMPTY_MAP = new EmptyMap();
@SuppressWarnings("unchecked")
public static <K, V> Object2ReferenceMap<K, V> emptyMap() {
return EMPTY_MAP;
}
public static class Singleton<K, V> extends Object2ReferenceFunctions.Singleton<K, V>
implements
Object2ReferenceMap<K, V>,
java.io.Serializable,
Cloneable {
private static final long serialVersionUID = -7046029254386353129L;
protected transient ObjectSet<Object2ReferenceMap.Entry<K, V>> entries;
protected transient ObjectSet<K> keys;
protected transient ReferenceCollection<V> values;
protected Singleton(final K key, final V value) {
super(key, value);
}
@Override
public boolean containsValue(final Object v) {
return ((value) == (v));
}
@Override
public void putAll(final Map<? extends K, ? extends V> m) {
throw new UnsupportedOperationException();
}
@Override
public ObjectSet<Object2ReferenceMap.Entry<K, V>> object2ReferenceEntrySet() {
if (entries == null)
entries = ObjectSets.singleton(new AbstractObject2ReferenceMap.BasicEntry<>(key, value));
return entries;
}
@Override
@SuppressWarnings({"rawtypes", "unchecked"})
public ObjectSet<Map.Entry<K, V>> entrySet() {
return (ObjectSet) object2ReferenceEntrySet();
}
@Override
public ObjectSet<K> keySet() {
if (keys == null)
keys = ObjectSets.singleton(key);
return keys;
}
@Override
public ReferenceCollection<V> values() {
if (values == null)
values = ReferenceSets.singleton(value);
return values;
}
@Override
public boolean isEmpty() {
return false;
}
@Override
public int hashCode() {
return ((key) == null ? 0 : (key).hashCode()) ^ ((value) == null ? 0 : System.identityHashCode(value));
}
@Override
public boolean equals(final Object o) {
if (o == this)
return true;
if (!(o instanceof Map))
return false;
Map<?, ?> m = (Map<?, ?>) o;
if (m.size() != 1)
return false;
return m.entrySet().iterator().next().equals(entrySet().iterator().next());
}
@Override
public String toString() {
return "{" + key + "=>" + value + "}";
}
}
public static <K, V> Object2ReferenceMap<K, V> singleton(final K key, V value) {
return new Singleton<>(key, value);
}
public static class SynchronizedMap<K, V> extends Object2ReferenceFunctions.SynchronizedFunction<K, V>
implements
Object2ReferenceMap<K, V>,
java.io.Serializable {
private static final long serialVersionUID = -7046029254386353129L;
protected final Object2ReferenceMap<K, V> map;
protected transient ObjectSet<Object2ReferenceMap.Entry<K, V>> entries;
protected transient ObjectSet<K> keys;
protected transient ReferenceCollection<V> values;
protected SynchronizedMap(final Object2ReferenceMap<K, V> m, final Object sync) {
super(m, sync);
this.map = m;
}
protected SynchronizedMap(final Object2ReferenceMap<K, V> m) {
super(m);
this.map = m;
}
@Override
public boolean containsValue(final Object v) {
synchronized (sync) {
return map.containsValue(v);
}
}
@Override
public void putAll(final Map<? extends K, ? extends V> m) {
synchronized (sync) {
map.putAll(m);
}
}
@Override
public ObjectSet<Object2ReferenceMap.Entry<K, V>> object2ReferenceEntrySet() {
synchronized (sync) {
if (entries == null)
entries = ObjectSets.synchronize(map.object2ReferenceEntrySet(), sync);
return entries;
}
}
@Override
@SuppressWarnings({"unchecked", "rawtypes"})
public ObjectSet<Map.Entry<K, V>> entrySet() {
return (ObjectSet) object2ReferenceEntrySet();
}
@Override
public ObjectSet<K> keySet() {
synchronized (sync) {
if (keys == null)
keys = ObjectSets.synchronize(map.keySet(), sync);
return keys;
}
}
@Override
public ReferenceCollection<V> values() {
synchronized (sync) {
if (values == null)
return ReferenceCollections.synchronize(map.values(), sync);
return values;
}
}
@Override
public boolean isEmpty() {
synchronized (sync) {
return map.isEmpty();
}
}
@Override
public int hashCode() {
synchronized (sync) {
return map.hashCode();
}
}
@Override
public boolean equals(final Object o) {
if (o == this)
return true;
synchronized (sync) {
return map.equals(o);
}
}
private void writeObject(java.io.ObjectOutputStream s) throws java.io.IOException {
synchronized (sync) {
s.defaultWriteObject();
}
}
@Override
public V getOrDefault(final Object key, final V defaultValue) {
synchronized (sync) {
return map.getOrDefault(key, defaultValue);
}
}
@Override
public void forEach(final java.util.function.BiConsumer<? super K, ? super V> action) {
synchronized (sync) {
map.forEach(action);
}
}
@Override
public void replaceAll(final java.util.function.BiFunction<? super K, ? super V, ? extends V> function) {
synchronized (sync) {
map.replaceAll(function);
}
}
@Override
public V putIfAbsent(final K key, final V value) {
synchronized (sync) {
return map.putIfAbsent(key, value);
}
}
@Override
public boolean remove(final Object key, final Object value) {
synchronized (sync) {
return map.remove(key, value);
}
}
@Override
public V replace(final K key, final V value) {
synchronized (sync) {
return map.replace(key, value);
}
}
@Override
public boolean replace(final K key, final V oldValue, final V newValue) {
synchronized (sync) {
return map.replace(key, oldValue, newValue);
}
}
@Override
public V computeIfPresent(final K key,
final java.util.function.BiFunction<? super K, ? super V, ? extends V> remappingFunction) {
synchronized (sync) {
return map.computeIfPresent(key, remappingFunction);
}
}
@Override
public V compute(final K key,
final java.util.function.BiFunction<? super K, ? super V, ? extends V> remappingFunction) {
synchronized (sync) {
return map.compute(key, remappingFunction);
}
}
@Override
public V merge(final K key, final V value,
final java.util.function.BiFunction<? super V, ? super V, ? extends V> remappingFunction) {
synchronized (sync) {
return map.merge(key, value, remappingFunction);
}
}
}
public static <K, V> Object2ReferenceMap<K, V> synchronize(final Object2ReferenceMap<K, V> m) {
return new SynchronizedMap<>(m);
}
public static <K, V> Object2ReferenceMap<K, V> synchronize(final Object2ReferenceMap<K, V> m, final Object sync) {
return new SynchronizedMap<>(m, sync);
}
public static class UnmodifiableMap<K, V> extends Object2ReferenceFunctions.UnmodifiableFunction<K, V>
implements
Object2ReferenceMap<K, V>,
java.io.Serializable {
private static final long serialVersionUID = -7046029254386353129L;
protected final Object2ReferenceMap<K, V> map;
protected transient ObjectSet<Object2ReferenceMap.Entry<K, V>> entries;
protected transient ObjectSet<K> keys;
protected transient ReferenceCollection<V> values;
protected UnmodifiableMap(final Object2ReferenceMap<K, V> m) {
super(m);
this.map = m;
}
@Override
public boolean containsValue(final Object v) {
return map.containsValue(v);
}
@Override
public void putAll(final Map<? extends K, ? extends V> m) {
throw new UnsupportedOperationException();
}
@Override
public ObjectSet<Object2ReferenceMap.Entry<K, V>> object2ReferenceEntrySet() {
if (entries == null)
entries = ObjectSets.unmodifiable(map.object2ReferenceEntrySet());
return entries;
}
@Override
@SuppressWarnings({"unchecked", "rawtypes"})
public ObjectSet<Map.Entry<K, V>> entrySet() {
return (ObjectSet) object2ReferenceEntrySet();
}
@Override
public ObjectSet<K> keySet() {
if (keys == null)
keys = ObjectSets.unmodifiable(map.keySet());
return keys;
}
@Override
public ReferenceCollection<V> values() {
if (values == null)
return ReferenceCollections.unmodifiable(map.values());
return values;
}
@Override
public boolean isEmpty() {
return map.isEmpty();
}
@Override
public int hashCode() {
return map.hashCode();
}
@Override
public boolean equals(final Object o) {
if (o == this)
return true;
return map.equals(o);
}
@Override
public V getOrDefault(final Object key, final V defaultValue) {
return map.getOrDefault(key, defaultValue);
}
@Override
public void forEach(final java.util.function.BiConsumer<? super K, ? super V> action) {
map.forEach(action);
}
@Override
public void replaceAll(final java.util.function.BiFunction<? super K, ? super V, ? extends V> function) {
throw new UnsupportedOperationException();
}
@Override
public V putIfAbsent(final K key, final V value) {
throw new UnsupportedOperationException();
}
@Override
public boolean remove(final Object key, final Object value) {
throw new UnsupportedOperationException();
}
@Override
public V replace(final K key, final V value) {
throw new UnsupportedOperationException();
}
@Override
public boolean replace(final K key, final V oldValue, final V newValue) {
throw new UnsupportedOperationException();
}
@Override
public V computeIfPresent(final K key,
final java.util.function.BiFunction<? super K, ? super V, ? extends V> remappingFunction) {
throw new UnsupportedOperationException();
}
@Override
public V compute(final K key,
final java.util.function.BiFunction<? super K, ? super V, ? extends V> remappingFunction) {
throw new UnsupportedOperationException();
}
@Override
public V merge(final K key, final V value,
final java.util.function.BiFunction<? super V, ? super V, ? extends V> remappingFunction) {
throw new UnsupportedOperationException();
}
}
public static <K, V> Object2ReferenceMap<K, V> unmodifiable(final Object2ReferenceMap<K, V> m) {
return new UnmodifiableMap<>(m);
}
}