430 lines
16 KiB
Java
430 lines
16 KiB
Java
package com.google.common.collect;
|
|
|
|
import com.google.common.base.Preconditions;
|
|
import com.google.common.collect.AbstractMultiset;
|
|
import com.google.common.collect.Multiset;
|
|
import com.google.common.collect.Serialization;
|
|
import com.google.common.math.IntMath;
|
|
import com.google.common.primitives.Ints;
|
|
import java.io.IOException;
|
|
import java.io.ObjectInputStream;
|
|
import java.io.ObjectOutputStream;
|
|
import java.io.Serializable;
|
|
import java.util.ArrayList;
|
|
import java.util.Collection;
|
|
import java.util.Iterator;
|
|
import java.util.List;
|
|
import java.util.Map;
|
|
import java.util.Set;
|
|
import java.util.concurrent.ConcurrentHashMap;
|
|
import java.util.concurrent.ConcurrentMap;
|
|
import java.util.concurrent.atomic.AtomicInteger;
|
|
|
|
/* loaded from: classes2.dex */
|
|
public final class ConcurrentHashMultiset<E> extends AbstractMultiset<E> implements Serializable {
|
|
private static final long serialVersionUID = 1;
|
|
private final transient ConcurrentMap<E, AtomicInteger> countMap;
|
|
|
|
@Override // com.google.common.collect.AbstractMultiset, java.util.AbstractCollection, java.util.Collection, com.google.common.collect.Multiset
|
|
public final /* bridge */ /* synthetic */ boolean contains(Object obj) {
|
|
return super.contains(obj);
|
|
}
|
|
|
|
@Override // com.google.common.collect.AbstractMultiset, com.google.common.collect.Multiset
|
|
public final /* bridge */ /* synthetic */ Set elementSet() {
|
|
return super.elementSet();
|
|
}
|
|
|
|
@Override // com.google.common.collect.AbstractMultiset, com.google.common.collect.Multiset
|
|
public final /* bridge */ /* synthetic */ Set entrySet() {
|
|
return super.entrySet();
|
|
}
|
|
|
|
/* loaded from: classes2.dex */
|
|
static class FieldSettersHolder {
|
|
static final Serialization.FieldSetter<ConcurrentHashMultiset> COUNT_MAP_FIELD_SETTER = Serialization.getFieldSetter(ConcurrentHashMultiset.class, "countMap");
|
|
|
|
private FieldSettersHolder() {
|
|
}
|
|
}
|
|
|
|
public static <E> ConcurrentHashMultiset<E> create() {
|
|
return new ConcurrentHashMultiset<>(new ConcurrentHashMap());
|
|
}
|
|
|
|
public static <E> ConcurrentHashMultiset<E> create(Iterable<? extends E> iterable) {
|
|
ConcurrentHashMultiset<E> create = create();
|
|
Iterables.addAll(create, iterable);
|
|
return create;
|
|
}
|
|
|
|
public static <E> ConcurrentHashMultiset<E> create(ConcurrentMap<E, AtomicInteger> concurrentMap) {
|
|
return new ConcurrentHashMultiset<>(concurrentMap);
|
|
}
|
|
|
|
ConcurrentHashMultiset(ConcurrentMap<E, AtomicInteger> concurrentMap) {
|
|
Preconditions.checkArgument(concurrentMap.isEmpty(), "the backing map (%s) must be empty", concurrentMap);
|
|
this.countMap = concurrentMap;
|
|
}
|
|
|
|
@Override // com.google.common.collect.Multiset
|
|
public final int count(Object obj) {
|
|
AtomicInteger atomicInteger = (AtomicInteger) Maps.safeGet(this.countMap, obj);
|
|
if (atomicInteger == null) {
|
|
return 0;
|
|
}
|
|
return atomicInteger.get();
|
|
}
|
|
|
|
@Override // java.util.AbstractCollection, java.util.Collection, com.google.common.collect.Multiset
|
|
public final int size() {
|
|
long j = 0;
|
|
while (this.countMap.values().iterator().hasNext()) {
|
|
j += r0.next().get();
|
|
}
|
|
return Ints.saturatedCast(j);
|
|
}
|
|
|
|
@Override // java.util.AbstractCollection, java.util.Collection
|
|
public final Object[] toArray() {
|
|
return snapshot().toArray();
|
|
}
|
|
|
|
@Override // java.util.AbstractCollection, java.util.Collection
|
|
public final <T> T[] toArray(T[] tArr) {
|
|
return (T[]) snapshot().toArray(tArr);
|
|
}
|
|
|
|
/* JADX WARN: Multi-variable type inference failed */
|
|
private List<E> snapshot() {
|
|
ArrayList newArrayListWithExpectedSize = Lists.newArrayListWithExpectedSize(size());
|
|
for (Multiset.Entry entry : entrySet()) {
|
|
Object element = entry.getElement();
|
|
for (int count = entry.getCount(); count > 0; count--) {
|
|
newArrayListWithExpectedSize.add(element);
|
|
}
|
|
}
|
|
return newArrayListWithExpectedSize;
|
|
}
|
|
|
|
@Override // com.google.common.collect.AbstractMultiset, com.google.common.collect.Multiset
|
|
public final int add(E e, int i) {
|
|
AtomicInteger atomicInteger;
|
|
int i2;
|
|
AtomicInteger atomicInteger2;
|
|
Preconditions.checkNotNull(e);
|
|
if (i == 0) {
|
|
return count(e);
|
|
}
|
|
CollectPreconditions.checkPositive(i, "occurences");
|
|
do {
|
|
atomicInteger = (AtomicInteger) Maps.safeGet(this.countMap, e);
|
|
if (atomicInteger == null && (atomicInteger = this.countMap.putIfAbsent(e, new AtomicInteger(i))) == null) {
|
|
return 0;
|
|
}
|
|
do {
|
|
i2 = atomicInteger.get();
|
|
if (i2 != 0) {
|
|
try {
|
|
} catch (ArithmeticException unused) {
|
|
StringBuilder sb = new StringBuilder(65);
|
|
sb.append("Overflow adding ");
|
|
sb.append(i);
|
|
sb.append(" occurrences to a count of ");
|
|
sb.append(i2);
|
|
throw new IllegalArgumentException(sb.toString());
|
|
}
|
|
} else {
|
|
atomicInteger2 = new AtomicInteger(i);
|
|
if (this.countMap.putIfAbsent(e, atomicInteger2) == null) {
|
|
break;
|
|
}
|
|
}
|
|
} while (!atomicInteger.compareAndSet(i2, IntMath.checkedAdd(i2, i)));
|
|
return i2;
|
|
} while (!this.countMap.replace(e, atomicInteger, atomicInteger2));
|
|
return 0;
|
|
}
|
|
|
|
@Override // com.google.common.collect.AbstractMultiset, com.google.common.collect.Multiset
|
|
public final int remove(Object obj, int i) {
|
|
int i2;
|
|
int max;
|
|
if (i == 0) {
|
|
return count(obj);
|
|
}
|
|
CollectPreconditions.checkPositive(i, "occurences");
|
|
AtomicInteger atomicInteger = (AtomicInteger) Maps.safeGet(this.countMap, obj);
|
|
if (atomicInteger == null) {
|
|
return 0;
|
|
}
|
|
do {
|
|
i2 = atomicInteger.get();
|
|
if (i2 == 0) {
|
|
return 0;
|
|
}
|
|
max = Math.max(0, i2 - i);
|
|
} while (!atomicInteger.compareAndSet(i2, max));
|
|
if (max == 0) {
|
|
this.countMap.remove(obj, atomicInteger);
|
|
}
|
|
return i2;
|
|
}
|
|
|
|
public final boolean removeExactly(Object obj, int i) {
|
|
int i2;
|
|
int i3;
|
|
if (i == 0) {
|
|
return true;
|
|
}
|
|
CollectPreconditions.checkPositive(i, "occurences");
|
|
AtomicInteger atomicInteger = (AtomicInteger) Maps.safeGet(this.countMap, obj);
|
|
if (atomicInteger == null) {
|
|
return false;
|
|
}
|
|
do {
|
|
i2 = atomicInteger.get();
|
|
if (i2 < i) {
|
|
return false;
|
|
}
|
|
i3 = i2 - i;
|
|
} while (!atomicInteger.compareAndSet(i2, i3));
|
|
if (i3 == 0) {
|
|
this.countMap.remove(obj, atomicInteger);
|
|
}
|
|
return true;
|
|
}
|
|
|
|
@Override // com.google.common.collect.AbstractMultiset, com.google.common.collect.Multiset
|
|
public final int setCount(E e, int i) {
|
|
AtomicInteger atomicInteger;
|
|
int i2;
|
|
AtomicInteger atomicInteger2;
|
|
Preconditions.checkNotNull(e);
|
|
CollectPreconditions.checkNonnegative(i, "count");
|
|
do {
|
|
atomicInteger = (AtomicInteger) Maps.safeGet(this.countMap, e);
|
|
if (atomicInteger == null && (i == 0 || (atomicInteger = this.countMap.putIfAbsent(e, new AtomicInteger(i))) == null)) {
|
|
return 0;
|
|
}
|
|
do {
|
|
i2 = atomicInteger.get();
|
|
if (i2 == 0) {
|
|
if (i != 0) {
|
|
atomicInteger2 = new AtomicInteger(i);
|
|
if (this.countMap.putIfAbsent(e, atomicInteger2) == null) {
|
|
break;
|
|
}
|
|
} else {
|
|
return 0;
|
|
}
|
|
}
|
|
} while (!atomicInteger.compareAndSet(i2, i));
|
|
if (i == 0) {
|
|
this.countMap.remove(e, atomicInteger);
|
|
}
|
|
return i2;
|
|
} while (!this.countMap.replace(e, atomicInteger, atomicInteger2));
|
|
return 0;
|
|
}
|
|
|
|
@Override // com.google.common.collect.AbstractMultiset, com.google.common.collect.Multiset
|
|
public final boolean setCount(E e, int i, int i2) {
|
|
Preconditions.checkNotNull(e);
|
|
CollectPreconditions.checkNonnegative(i, "oldCount");
|
|
CollectPreconditions.checkNonnegative(i2, "newCount");
|
|
AtomicInteger atomicInteger = (AtomicInteger) Maps.safeGet(this.countMap, e);
|
|
if (atomicInteger == null) {
|
|
if (i != 0) {
|
|
return false;
|
|
}
|
|
return i2 == 0 || this.countMap.putIfAbsent(e, new AtomicInteger(i2)) == null;
|
|
}
|
|
int i3 = atomicInteger.get();
|
|
if (i3 == i) {
|
|
if (i3 == 0) {
|
|
if (i2 == 0) {
|
|
this.countMap.remove(e, atomicInteger);
|
|
return true;
|
|
}
|
|
AtomicInteger atomicInteger2 = new AtomicInteger(i2);
|
|
return this.countMap.putIfAbsent(e, atomicInteger2) == null || this.countMap.replace(e, atomicInteger, atomicInteger2);
|
|
}
|
|
if (atomicInteger.compareAndSet(i3, i2)) {
|
|
if (i2 == 0) {
|
|
this.countMap.remove(e, atomicInteger);
|
|
}
|
|
return true;
|
|
}
|
|
}
|
|
return false;
|
|
}
|
|
|
|
@Override // com.google.common.collect.AbstractMultiset
|
|
final Set<E> createElementSet() {
|
|
return new ForwardingSet<E>(this, this.countMap.keySet()) { // from class: com.google.common.collect.ConcurrentHashMultiset.1
|
|
final Set val$delegate;
|
|
|
|
{
|
|
this.val$delegate = r2;
|
|
}
|
|
|
|
@Override // com.google.common.collect.ForwardingCollection, java.util.Collection, java.util.Set
|
|
public boolean contains(Object obj) {
|
|
return obj != null && Collections2.safeContains(this.val$delegate, obj);
|
|
}
|
|
|
|
@Override // com.google.common.collect.ForwardingCollection, java.util.Collection, java.util.Set
|
|
public boolean containsAll(Collection<?> collection) {
|
|
return standardContainsAll(collection);
|
|
}
|
|
|
|
@Override // com.google.common.collect.ForwardingCollection, java.util.Collection, java.util.Set
|
|
public boolean remove(Object obj) {
|
|
return obj != null && Collections2.safeRemove(this.val$delegate, obj);
|
|
}
|
|
|
|
@Override // com.google.common.collect.ForwardingCollection, java.util.Collection, java.util.Set
|
|
public boolean removeAll(Collection<?> collection) {
|
|
return standardRemoveAll(collection);
|
|
}
|
|
|
|
/* JADX INFO: Access modifiers changed from: protected */
|
|
@Override // com.google.common.collect.ForwardingSet, com.google.common.collect.ForwardingCollection, com.google.common.collect.ForwardingObject
|
|
public Set<E> delegate() {
|
|
return this.val$delegate;
|
|
}
|
|
};
|
|
}
|
|
|
|
@Override // com.google.common.collect.AbstractMultiset
|
|
final Iterator<E> elementIterator() {
|
|
throw new AssertionError("should never be called");
|
|
}
|
|
|
|
@Override // com.google.common.collect.AbstractMultiset
|
|
@Deprecated
|
|
public final Set<Multiset.Entry<E>> createEntrySet() {
|
|
return new EntrySet();
|
|
}
|
|
|
|
@Override // com.google.common.collect.AbstractMultiset
|
|
final int distinctElements() {
|
|
return this.countMap.size();
|
|
}
|
|
|
|
@Override // com.google.common.collect.AbstractMultiset, java.util.AbstractCollection, java.util.Collection
|
|
public final boolean isEmpty() {
|
|
return this.countMap.isEmpty();
|
|
}
|
|
|
|
/* JADX INFO: Access modifiers changed from: package-private */
|
|
@Override // com.google.common.collect.AbstractMultiset
|
|
public final Iterator<Multiset.Entry<E>> entryIterator() {
|
|
return new ForwardingIterator<Multiset.Entry<E>>(this, new AbstractIterator<Multiset.Entry<E>>(this) { // from class: com.google.common.collect.ConcurrentHashMultiset.2
|
|
private final Iterator<Map.Entry<E, AtomicInteger>> mapEntries;
|
|
final ConcurrentHashMultiset this$0;
|
|
|
|
{
|
|
this.this$0 = this;
|
|
this.mapEntries = this.countMap.entrySet().iterator();
|
|
}
|
|
|
|
/* JADX INFO: Access modifiers changed from: protected */
|
|
@Override // com.google.common.collect.AbstractIterator
|
|
public Multiset.Entry<E> computeNext() {
|
|
while (this.mapEntries.hasNext()) {
|
|
Map.Entry<E, AtomicInteger> next = this.mapEntries.next();
|
|
int i = next.getValue().get();
|
|
if (i != 0) {
|
|
return Multisets.immutableEntry(next.getKey(), i);
|
|
}
|
|
}
|
|
return endOfData();
|
|
}
|
|
}) { // from class: com.google.common.collect.ConcurrentHashMultiset.3
|
|
private Multiset.Entry<E> last;
|
|
final ConcurrentHashMultiset this$0;
|
|
final Iterator val$readOnlyIterator;
|
|
|
|
{
|
|
this.this$0 = this;
|
|
this.val$readOnlyIterator = r2;
|
|
}
|
|
|
|
@Override // com.google.common.collect.ForwardingIterator, java.util.Iterator
|
|
public Multiset.Entry<E> next() {
|
|
Multiset.Entry<E> entry = (Multiset.Entry) super.next();
|
|
this.last = entry;
|
|
return entry;
|
|
}
|
|
|
|
@Override // com.google.common.collect.ForwardingIterator, java.util.Iterator
|
|
public void remove() {
|
|
CollectPreconditions.checkRemove(this.last != null);
|
|
this.this$0.setCount(this.last.getElement(), 0);
|
|
this.last = null;
|
|
}
|
|
|
|
/* JADX INFO: Access modifiers changed from: protected */
|
|
@Override // com.google.common.collect.ForwardingIterator, com.google.common.collect.ForwardingObject
|
|
public Iterator<Multiset.Entry<E>> delegate() {
|
|
return this.val$readOnlyIterator;
|
|
}
|
|
};
|
|
}
|
|
|
|
@Override // java.util.AbstractCollection, java.util.Collection, java.lang.Iterable, com.google.common.collect.Multiset
|
|
public final Iterator<E> iterator() {
|
|
return Multisets.iteratorImpl(this);
|
|
}
|
|
|
|
@Override // com.google.common.collect.AbstractMultiset, java.util.AbstractCollection, java.util.Collection
|
|
public final void clear() {
|
|
this.countMap.clear();
|
|
}
|
|
|
|
/* loaded from: classes2.dex */
|
|
class EntrySet extends AbstractMultiset.EntrySet {
|
|
final ConcurrentHashMultiset this$0;
|
|
|
|
/* JADX WARN: 'super' call moved to the top of the method (can break code semantics) */
|
|
private EntrySet(ConcurrentHashMultiset concurrentHashMultiset) {
|
|
super(concurrentHashMultiset);
|
|
this.this$0 = concurrentHashMultiset;
|
|
}
|
|
|
|
@Override // java.util.AbstractCollection, java.util.Collection, java.util.Set
|
|
public Object[] toArray() {
|
|
return snapshot().toArray();
|
|
}
|
|
|
|
@Override // java.util.AbstractCollection, java.util.Collection, java.util.Set
|
|
public <T> T[] toArray(T[] tArr) {
|
|
return (T[]) snapshot().toArray(tArr);
|
|
}
|
|
|
|
private List<Multiset.Entry<E>> snapshot() {
|
|
ArrayList newArrayListWithExpectedSize = Lists.newArrayListWithExpectedSize(size());
|
|
Iterators.addAll(newArrayListWithExpectedSize, iterator());
|
|
return newArrayListWithExpectedSize;
|
|
}
|
|
|
|
/* JADX INFO: Access modifiers changed from: package-private */
|
|
@Override // com.google.common.collect.AbstractMultiset.EntrySet, com.google.common.collect.Multisets.EntrySet
|
|
public ConcurrentHashMultiset<E> multiset() {
|
|
return this.this$0;
|
|
}
|
|
}
|
|
|
|
private void writeObject(ObjectOutputStream objectOutputStream) throws IOException {
|
|
objectOutputStream.defaultWriteObject();
|
|
objectOutputStream.writeObject(this.countMap);
|
|
}
|
|
|
|
private void readObject(ObjectInputStream objectInputStream) throws IOException, ClassNotFoundException {
|
|
objectInputStream.defaultReadObject();
|
|
FieldSettersHolder.COUNT_MAP_FIELD_SETTER.set((Serialization.FieldSetter<ConcurrentHashMultiset>) this, objectInputStream.readObject());
|
|
}
|
|
}
|