/*
* Copyright 2015 Goldman Sachs.
*
* Licensed under the Apache License, Version 2.0 (the "License");
* you may not use this file except in compliance with the License.
* You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*/
package com.gs.collections.impl.set.mutable;
import java.io.Externalizable;
import java.io.IOException;
import java.io.ObjectInput;
import java.io.ObjectOutput;
import java.lang.reflect.Array;
import java.util.Arrays;
import java.util.Collection;
import java.util.Iterator;
import java.util.List;
import java.util.NoSuchElementException;
import java.util.RandomAccess;
import java.util.Set;
import java.util.concurrent.ExecutorService;
import com.gs.collections.api.LazyIterable;
import com.gs.collections.api.RichIterable;
import com.gs.collections.api.annotation.Beta;
import com.gs.collections.api.block.function.Function;
import com.gs.collections.api.block.predicate.Predicate;
import com.gs.collections.api.block.predicate.Predicate2;
import com.gs.collections.api.block.procedure.Procedure;
import com.gs.collections.api.block.procedure.Procedure2;
import com.gs.collections.api.block.procedure.primitive.ObjectIntProcedure;
import com.gs.collections.api.list.MutableList;
import com.gs.collections.api.partition.set.PartitionMutableSet;
import com.gs.collections.api.set.ImmutableSet;
import com.gs.collections.api.set.MutableSet;
import com.gs.collections.api.set.ParallelUnsortedSetIterable;
import com.gs.collections.api.tuple.Twin;
import com.gs.collections.impl.block.factory.Procedures2;
import com.gs.collections.impl.block.procedure.PartitionPredicate2Procedure;
import com.gs.collections.impl.block.procedure.PartitionProcedure;
import com.gs.collections.impl.block.procedure.SelectInstancesOfProcedure;
import com.gs.collections.impl.factory.Lists;
import com.gs.collections.impl.factory.Sets;
import com.gs.collections.impl.lazy.AbstractLazyIterable;
import com.gs.collections.impl.lazy.parallel.AbstractBatch;
import com.gs.collections.impl.lazy.parallel.AbstractParallelIterable;
import com.gs.collections.impl.lazy.parallel.bag.CollectUnsortedBagBatch;
import com.gs.collections.impl.lazy.parallel.bag.FlatCollectUnsortedBagBatch;
import com.gs.collections.impl.lazy.parallel.bag.UnsortedBagBatch;
import com.gs.collections.impl.lazy.parallel.set.AbstractParallelUnsortedSetIterable;
import com.gs.collections.impl.lazy.parallel.set.RootUnsortedSetBatch;
import com.gs.collections.impl.lazy.parallel.set.SelectUnsortedSetBatch;
import com.gs.collections.impl.lazy.parallel.set.UnsortedSetBatch;
import com.gs.collections.impl.multimap.set.UnifiedSetMultimap;
import com.gs.collections.impl.partition.set.PartitionUnifiedSet;
import com.gs.collections.impl.set.AbstractUnifiedSet;
import com.gs.collections.impl.tuple.Tuples;
import com.gs.collections.impl.utility.Iterate;
import net.jcip.annotations.NotThreadSafe;
@NotThreadSafe
public class UnifiedSet<T>
extends AbstractUnifiedSet<T>
implements Externalizable
{
protected static final Object NULL_KEY = new Object()
{
@Override
public boolean equals(Object obj)
{
throw new RuntimeException("Possible corruption through unsynchronized concurrent modification.");
}
@Override
public int hashCode()
{
throw new RuntimeException("Possible corruption through unsynchronized concurrent modification.");
}
@Override
public String toString()
{
return "UnifiedSet.NULL_KEY";
}
};
private static final long serialVersionUID = 1L;
protected transient Object[] table;
protected transient int occupied;
public UnifiedSet()
{
this.allocate(DEFAULT_INITIAL_CAPACITY << 1);
}
public UnifiedSet(int initialCapacity)
{
this(initialCapacity, DEFAULT_LOAD_FACTOR);
}
public UnifiedSet(int initialCapacity, float loadFactor)
{
if (initialCapacity < 0)
{
throw new IllegalArgumentException("initial capacity cannot be less than 0");
}
if (loadFactor <= 0.0)
{
throw new IllegalArgumentException("load factor cannot be less than or equal to 0");
}
if (loadFactor > 1.0)
{
throw new IllegalArgumentException("load factor cannot be greater than 1");
}
this.loadFactor = loadFactor;
this.init(this.fastCeil(initialCapacity / loadFactor));
}
public UnifiedSet(Collection<? extends T> collection)
{
this(Math.max(collection.size(), DEFAULT_INITIAL_CAPACITY), DEFAULT_LOAD_FACTOR);
this.addAll(collection);
}
public UnifiedSet(UnifiedSet<T> set)
{
this.maxSize = set.maxSize;
this.loadFactor = set.loadFactor;
this.occupied = set.occupied;
this.allocateTable(set.table.length);
for (int i = 0; i < set.table.length; i++)
{
Object key = set.table[i];
if (key instanceof ChainedBucket)
{
this.table[i] = ((ChainedBucket) key).copy();
}
else if (key != null)
{
this.table[i] = key;
}
}
}
public static <K> UnifiedSet<K> newSet()
{
return new UnifiedSet<K>();
}
public static <K> UnifiedSet<K> newSet(int size)
{
return new UnifiedSet<K>(size);
}
public static <K> UnifiedSet<K> newSet(Iterable<? extends K> source)
{
if (source instanceof UnifiedSet)
{
return new UnifiedSet<K>((UnifiedSet<K>) source);
}
if (source instanceof Collection)
{
return new UnifiedSet<K>((Collection<K>) source);
}
if (source == null)
{
throw new NullPointerException();
}
UnifiedSet<K> result = source instanceof RichIterable
? UnifiedSet.<K>newSet(((RichIterable<?>) source).size())
: UnifiedSet.<K>newSet();
Iterate.forEachWith(source, Procedures2.<K>addToCollection(), result);
return result;
}
public static <K> UnifiedSet<K> newSet(int size, float loadFactor)
{
return new UnifiedSet<K>(size, loadFactor);
}
public static <K> UnifiedSet<K> newSetWith(K... elements)
{
return UnifiedSet.<K>newSet(elements.length).with(elements);
}
private int fastCeil(float v)
{
int possibleResult = (int) v;
if (v - possibleResult > 0.0F)
{
possibleResult++;
}
return possibleResult;
}
@Override
protected Object[] getTable()
{
return this.table;
}
@Override
protected void allocateTable(int sizeToAllocate)
{
this.table = new Object[sizeToAllocate];
}
protected final int index(Object key)
{
// This function ensures that hashCodes that differ only by
// constant multiples at each bit position have a bounded
// number of collisions (approximately 8 at default load factor).
int h = key == null ? 0 : key.hashCode();
h ^= h >>> 20 ^ h >>> 12;
h ^= h >>> 7 ^ h >>> 4;
return h & this.table.length - 1;
}
public void clear()
{
if (this.occupied == 0)
{
return;
}
this.occupied = 0;
Object[] set = this.table;
for (int i = set.length; i-- > 0; )
{
set[i] = null;
}
}
public boolean add(T key)
{
int index = this.index(key);
Object cur = this.table[index];
if (cur == null)
{
this.table[index] = UnifiedSet.toSentinelIfNull(key);
if (++this.occupied > this.maxSize)
{
this.rehash();
}
return true;
}
if (cur instanceof ChainedBucket || !this.nonNullTableObjectEquals(cur, key))
{
return this.chainedAdd(key, index);
}
return false;
}
private boolean chainedAdd(T key, int index)
{
Object realKey = UnifiedSet.toSentinelIfNull(key);
if (this.table[index] instanceof ChainedBucket)
{
ChainedBucket bucket = (ChainedBucket) this.table[index];
do
{
if (this.nonNullTableObjectEquals(bucket.zero, key))
{
return false;
}
if (bucket.one == null)
{
bucket.one = realKey;
if (++this.occupied > this.maxSize)
{
this.rehash();
}
return true;
}
if (this.nonNullTableObjectEquals(bucket.one, key))
{
return false;
}
if (bucket.two == null)
{
bucket.two = realKey;
if (++this.occupied > this.maxSize)
{
this.rehash();
}
return true;
}
if (this.nonNullTableObjectEquals(bucket.two, key))
{
return false;
}
if (bucket.three instanceof ChainedBucket)
{
bucket = (ChainedBucket) bucket.three;
continue;
}
if (bucket.three == null)
{
bucket.three = realKey;
if (++this.occupied > this.maxSize)
{
this.rehash();
}
return true;
}
if (this.nonNullTableObjectEquals(bucket.three, key))
{
return false;
}
bucket.three = new ChainedBucket(bucket.three, realKey);
if (++this.occupied > this.maxSize)
{
this.rehash();
}
return true;
}
while (true);
}
ChainedBucket newBucket = new ChainedBucket(this.table[index], realKey);
this.table[index] = newBucket;
if (++this.occupied > this.maxSize)
{
this.rehash();
}
return true;
}
@Override
protected void rehash(int newCapacity)
{
int oldLength = this.table.length;
Object[] old = this.table;
this.allocate(newCapacity);
this.occupied = 0;
for (int i = 0; i < oldLength; i++)
{
Object oldKey = old[i];
if (oldKey instanceof ChainedBucket)
{
ChainedBucket bucket = (ChainedBucket) oldKey;
do
{
if (bucket.zero != null)
{
this.add(this.nonSentinel(bucket.zero));
}
if (bucket.one == null)
{
break;
}
this.add(this.nonSentinel(bucket.one));
if (bucket.two == null)
{
break;
}
this.add(this.nonSentinel(bucket.two));
if (bucket.three != null)
{
if (bucket.three instanceof ChainedBucket)
{
bucket = (ChainedBucket) bucket.three;
continue;
}
this.add(this.nonSentinel(bucket.three));
}
break;
}
while (true);
}
else if (oldKey != null)
{
this.add(this.nonSentinel(oldKey));
}
}
}
@Override
public boolean contains(Object key)
{
int index = this.index(key);
Object cur = this.table[index];
if (cur == null)
{
return false;
}
if (cur instanceof ChainedBucket)
{
return this.chainContains((ChainedBucket) cur, (T) key);
}
return this.nonNullTableObjectEquals(cur, (T) key);
}
private boolean chainContains(ChainedBucket bucket, T key)
{
do
{
if (this.nonNullTableObjectEquals(bucket.zero, key))
{
return true;
}
if (bucket.one == null)
{
return false;
}
if (this.nonNullTableObjectEquals(bucket.one, key))
{
return true;
}
if (bucket.two == null)
{
return false;
}
if (this.nonNullTableObjectEquals(bucket.two, key))
{
return true;
}
if (bucket.three == null)
{
return false;
}
if (bucket.three instanceof ChainedBucket)
{
bucket = (ChainedBucket) bucket.three;
continue;
}
return this.nonNullTableObjectEquals(bucket.three, key);
}
while (true);
}
public void batchForEach(Procedure<? super T> procedure, int sectionIndex, int sectionCount)
{
Object[] set = this.table;
int sectionSize = set.length / sectionCount;
int start = sectionSize * sectionIndex;
int end = sectionIndex == sectionCount - 1 ? set.length : start + sectionSize;
for (int i = start; i < end; i++)
{
Object cur = set[i];
if (cur != null)
{
if (cur instanceof ChainedBucket)
{
this.chainedForEach((ChainedBucket) cur, procedure);
}
else
{
procedure.value(this.nonSentinel(cur));
}
}
}
}
public MutableSet<T> tap(Procedure<? super T> procedure)
{
this.forEach(procedure);
return this;
}
public void each(Procedure<? super T> procedure)
{
this.each(procedure, 0, this.table.length);
}
protected void each(Procedure<? super T> procedure, int start, int end)
{
for (int i = start; i < end; i++)
{
Object cur = this.table[i];
if (cur instanceof ChainedBucket)
{
this.chainedForEach((ChainedBucket) cur, procedure);
}
else if (cur != null)
{
procedure.value(this.nonSentinel(cur));
}
}
}
private void chainedForEach(ChainedBucket bucket, Procedure<? super T> procedure)
{
do
{
procedure.value(this.nonSentinel(bucket.zero));
if (bucket.one == null)
{
return;
}
procedure.value(this.nonSentinel(bucket.one));
if (bucket.two == null)
{
return;
}
procedure.value(this.nonSentinel(bucket.two));
if (bucket.three == null)
{
return;
}
if (bucket.three instanceof ChainedBucket)
{
bucket = (ChainedBucket) bucket.three;
continue;
}
procedure.value(this.nonSentinel(bucket.three));
return;
}
while (true);
}
@Override
public <P> void forEachWith(Procedure2<? super T, ? super P> procedure, P parameter)
{
for (int i = 0; i < this.table.length; i++)
{
Object cur = this.table[i];
if (cur instanceof ChainedBucket)
{
this.chainedForEachWith((ChainedBucket) cur, procedure, parameter);
}
else if (cur != null)
{
procedure.value(this.nonSentinel(cur), parameter);
}
}
}
private <P> void chainedForEachWith(
ChainedBucket bucket,
Procedure2<? super T, ? super P> procedure,
P parameter)
{
do
{
procedure.value(this.nonSentinel(bucket.zero), parameter);
if (bucket.one == null)
{
return;
}
procedure.value(this.nonSentinel(bucket.one), parameter);
if (bucket.two == null)
{
return;
}
procedure.value(this.nonSentinel(bucket.two), parameter);
if (bucket.three == null)
{
return;
}
if (bucket.three instanceof ChainedBucket)
{
bucket = (ChainedBucket) bucket.three;
continue;
}
procedure.value(this.nonSentinel(bucket.three), parameter);
return;
}
while (true);
}
@Override
public void forEachWithIndex(ObjectIntProcedure<? super T> objectIntProcedure)
{
int count = 0;
for (int i = 0; i < this.table.length; i++)
{
Object cur = this.table[i];
if (cur instanceof ChainedBucket)
{
count = this.chainedForEachWithIndex((ChainedBucket) cur, objectIntProcedure, count);
}
else if (cur != null)
{
objectIntProcedure.value(this.nonSentinel(cur), count++);
}
}
}
private int chainedForEachWithIndex(ChainedBucket bucket, ObjectIntProcedure<? super T> procedure, int count)
{
do
{
procedure.value(this.nonSentinel(bucket.zero), count++);
if (bucket.one == null)
{
return count;
}
procedure.value(this.nonSentinel(bucket.one), count++);
if (bucket.two == null)
{
return count;
}
procedure.value(this.nonSentinel(bucket.two), count++);
if (bucket.three == null)
{
return count;
}
if (bucket.three instanceof ChainedBucket)
{
bucket = (ChainedBucket) bucket.three;
continue;
}
procedure.value(this.nonSentinel(bucket.three), count++);
return count;
}
while (true);
}
public UnifiedSet<T> newEmpty()
{
return UnifiedSet.newSet();
}
public T getFirst()
{
for (int i = 0; i < this.table.length; i++)
{
Object cur = this.table[i];
if (cur instanceof ChainedBucket)
{
return this.nonSentinel(((ChainedBucket) cur).zero);
}
if (cur != null)
{
return this.nonSentinel(cur);
}
}
return null;
}
public T getLast()
{
for (int i = this.table.length - 1; i >= 0; i--)
{
Object cur = this.table[i];
if (cur instanceof ChainedBucket)
{
return this.getLast((ChainedBucket) cur);
}
if (cur != null)
{
return this.nonSentinel(cur);
}
}
return null;
}
private T getLast(ChainedBucket bucket)
{
while (bucket.three instanceof ChainedBucket)
{
bucket = (ChainedBucket) bucket.three;
}
if (bucket.three != null)
{
return this.nonSentinel(bucket.three);
}
if (bucket.two != null)
{
return this.nonSentinel(bucket.two);
}
if (bucket.one != null)
{
return this.nonSentinel(bucket.one);
}
assert bucket.zero != null;
return this.nonSentinel(bucket.zero);
}
public UnifiedSet<T> select(Predicate<? super T> predicate)
{
return this.select(predicate, this.newEmpty());
}
public <P> UnifiedSet<T> selectWith(
Predicate2<? super T, ? super P> predicate,
P parameter)
{
return this.selectWith(predicate, parameter, this.newEmpty());
}
public UnifiedSet<T> reject(Predicate<? super T> predicate)
{
return this.reject(predicate, this.newEmpty());
}
public <P> UnifiedSet<T> rejectWith(
Predicate2<? super T, ? super P> predicate,
P parameter)
{
return this.rejectWith(predicate, parameter, this.newEmpty());
}
public <P> Twin<MutableList<T>> selectAndRejectWith(
final Predicate2<? super T, ? super P> predicate,
P parameter)
{
final MutableList<T> positiveResult = Lists.mutable.empty();
final MutableList<T> negativeResult = Lists.mutable.empty();
this.forEachWith(new Procedure2<T, P>()
{
public void value(T each, P parm)
{
(predicate.accept(each, parm) ? positiveResult : negativeResult).add(each);
}
}, parameter);
return Tuples.twin(positiveResult, negativeResult);
}
public PartitionMutableSet<T> partition(Predicate<? super T> predicate)
{
PartitionMutableSet<T> partitionUnifiedSet = new PartitionUnifiedSet<T>();
this.forEach(new PartitionProcedure<T>(predicate, partitionUnifiedSet));
return partitionUnifiedSet;
}
public <P> PartitionMutableSet<T> partitionWith(Predicate2<? super T, ? super P> predicate, P parameter)
{
PartitionMutableSet<T> partitionUnifiedSet = new PartitionUnifiedSet<T>();
this.forEach(new PartitionPredicate2Procedure<T, P>(predicate, parameter, partitionUnifiedSet));
return partitionUnifiedSet;
}
public <S> UnifiedSet<S> selectInstancesOf(Class<S> clazz)
{
UnifiedSet<S> result = UnifiedSet.newSet();
this.forEach(new SelectInstancesOfProcedure<S>(clazz, result));
return result;
}
@Override
protected T detect(Predicate<? super T> predicate, int start, int end)
{
for (int i = start; i < end; i++)
{
Object cur = this.table[i];
if (cur instanceof ChainedBucket)
{
Object chainedDetect = this.chainedDetect((ChainedBucket) cur, predicate);
if (chainedDetect != null)
{
return this.nonSentinel(chainedDetect);
}
}
else if (cur != null)
{
T each = this.nonSentinel(cur);
if (predicate.accept(each))
{
return each;
}
}
}
return null;
}
private Object chainedDetect(ChainedBucket bucket, Predicate<? super T> predicate)
{
do
{
if (predicate.accept(this.nonSentinel(bucket.zero)))
{
return bucket.zero;
}
if (bucket.one == null)
{
return null;
}
if (predicate.accept(this.nonSentinel(bucket.one)))
{
return bucket.one;
}
if (bucket.two == null)
{
return null;
}
if (predicate.accept(this.nonSentinel(bucket.two)))
{
return bucket.two;
}
if (bucket.three == null)
{
return null;
}
if (bucket.three instanceof ChainedBucket)
{
bucket = (ChainedBucket) bucket.three;
continue;
}
if (predicate.accept(this.nonSentinel(bucket.three)))
{
return bucket.three;
}
return null;
}
while (true);
}
@Override
protected boolean shortCircuit(
Predicate<? super T> predicate,
boolean expected,
boolean onShortCircuit,
boolean atEnd,
int start,
int end)
{
for (int i = start; i < end; i++)
{
Object cur = this.table[i];
if (cur instanceof ChainedBucket)
{
if (this.chainedShortCircuit((ChainedBucket) cur, predicate, expected))
{
return onShortCircuit;
}
}
else if (cur != null)
{
T each = this.nonSentinel(cur);
if (predicate.accept(each) == expected)
{
return onShortCircuit;
}
}
}
return atEnd;
}
private boolean chainedShortCircuit(
ChainedBucket bucket,
Predicate<? super T> predicate,
boolean expected)
{
do
{
if (predicate.accept(this.nonSentinel(bucket.zero)) == expected)
{
return true;
}
if (bucket.one == null)
{
return false;
}
if (predicate.accept(this.nonSentinel(bucket.one)) == expected)
{
return true;
}
if (bucket.two == null)
{
return false;
}
if (predicate.accept(this.nonSentinel(bucket.two)) == expected)
{
return true;
}
if (bucket.three == null)
{
return false;
}
if (bucket.three instanceof ChainedBucket)
{
bucket = (ChainedBucket) bucket.three;
continue;
}
return predicate.accept(this.nonSentinel(bucket.three)) == expected;
}
while (true);
}
@Override
protected <P> boolean shortCircuitWith(
Predicate2<? super T, ? super P> predicate2,
P parameter,
boolean expected,
boolean onShortCircuit,
boolean atEnd)
{
for (int i = 0; i < this.table.length; i++)
{
Object cur = this.table[i];
if (cur instanceof ChainedBucket)
{
if (this.chainedShortCircuitWith((ChainedBucket) cur, predicate2, parameter, expected))
{
return onShortCircuit;
}
}
else if (cur != null)
{
T each = this.nonSentinel(cur);
if (predicate2.accept(each, parameter) == expected)
{
return onShortCircuit;
}
}
}
return atEnd;
}
private <P> boolean chainedShortCircuitWith(
ChainedBucket bucket,
Predicate2<? super T, ? super P> predicate,
P parameter,
boolean expected)
{
do
{
if (predicate.accept(this.nonSentinel(bucket.zero), parameter) == expected)
{
return true;
}
if (bucket.one == null)
{
return false;
}
if (predicate.accept(this.nonSentinel(bucket.one), parameter) == expected)
{
return true;
}
if (bucket.two == null)
{
return false;
}
if (predicate.accept(this.nonSentinel(bucket.two), parameter) == expected)
{
return true;
}
if (bucket.three == null)
{
return false;
}
if (bucket.three instanceof ChainedBucket)
{
bucket = (ChainedBucket) bucket.three;
continue;
}
return predicate.accept(this.nonSentinel(bucket.three), parameter) == expected;
}
while (true);
}
public ImmutableSet<T> toImmutable()
{
return Sets.immutable.withAll(this);
}
public UnifiedSet<T> with(T element)
{
this.add(element);
return this;
}
public UnifiedSet<T> with(T element1, T element2)
{
this.add(element1);
this.add(element2);
return this;
}
public UnifiedSet<T> with(T element1, T element2, T element3)
{
this.add(element1);
this.add(element2);
this.add(element3);
return this;
}
public UnifiedSet<T> with(T... elements)
{
this.addAll(Arrays.asList(elements));
return this;
}
public UnifiedSet<T> withAll(Iterable<? extends T> iterable)
{
this.addAllIterable(iterable);
return this;
}
public UnifiedSet<T> without(T element)
{
this.remove(element);
return this;
}
public UnifiedSet<T> withoutAll(Iterable<? extends T> elements)
{
this.removeAllIterable(elements);
return this;
}
public boolean addAllIterable(Iterable<? extends T> iterable)
{
if (iterable instanceof UnifiedSet)
{
return this.copySet((UnifiedSet<?>) iterable);
}
int size = Iterate.sizeOf(iterable);
this.ensureCapacity(size);
int oldSize = this.size();
if (iterable instanceof List && iterable instanceof RandomAccess)
{
List<T> list = (List<T>) iterable;
for (int i = 0; i < size; i++)
{
this.add(list.get(i));
}
}
else
{
Iterate.forEachWith(iterable, Procedures2.<T>addToCollection(), this);
}
return this.size() != oldSize;
}
private void ensureCapacity(int size)
{
if (size > this.maxSize)
{
size = (int) (size / this.loadFactor) + 1;
int capacity = Integer.highestOneBit(size);
if (size != capacity)
{
capacity <<= 1;
}
this.rehash(capacity);
}
}
protected boolean copySet(UnifiedSet<?> unifiedset)
{
//todo: optimize for current size == 0
boolean changed = false;
for (int i = 0; i < unifiedset.table.length; i++)
{
Object cur = unifiedset.table[i];
if (cur instanceof ChainedBucket)
{
changed |= this.copyChain((ChainedBucket) cur);
}
else if (cur != null)
{
changed |= this.add(this.nonSentinel(cur));
}
}
return changed;
}
private boolean copyChain(ChainedBucket bucket)
{
boolean changed = false;
do
{
changed |= this.add(this.nonSentinel(bucket.zero));
if (bucket.one == null)
{
return changed;
}
changed |= this.add(this.nonSentinel(bucket.one));
if (bucket.two == null)
{
return changed;
}
changed |= this.add(this.nonSentinel(bucket.two));
if (bucket.three == null)
{
return changed;
}
if (bucket.three instanceof ChainedBucket)
{
bucket = (ChainedBucket) bucket.three;
continue;
}
changed |= this.add(this.nonSentinel(bucket.three));
return changed;
}
while (true);
}
public boolean remove(Object key)
{
int index = this.index(key);
Object cur = this.table[index];
if (cur == null)
{
return false;
}
if (cur instanceof ChainedBucket)
{
return this.removeFromChain((ChainedBucket) cur, (T) key, index);
}
if (this.nonNullTableObjectEquals(cur, (T) key))
{
this.table[index] = null;
this.occupied--;
return true;
}
return false;
}
private boolean removeFromChain(ChainedBucket bucket, T key, int index)
{
if (this.nonNullTableObjectEquals(bucket.zero, key))
{
bucket.zero = bucket.removeLast(0);
if (bucket.zero == null)
{
this.table[index] = null;
}
this.occupied--;
return true;
}
if (bucket.one == null)
{
return false;
}
if (this.nonNullTableObjectEquals(bucket.one, key))
{
bucket.one = bucket.removeLast(1);
this.occupied--;
return true;
}
if (bucket.two == null)
{
return false;
}
if (this.nonNullTableObjectEquals(bucket.two, key))
{
bucket.two = bucket.removeLast(2);
this.occupied--;
return true;
}
if (bucket.three == null)
{
return false;
}
if (bucket.three instanceof ChainedBucket)
{
return this.removeDeepChain(bucket, key);
}
if (this.nonNullTableObjectEquals(bucket.three, key))
{
bucket.three = bucket.removeLast(3);
this.occupied--;
return true;
}
return false;
}
private boolean removeDeepChain(ChainedBucket oldBucket, T key)
{
do
{
ChainedBucket bucket = (ChainedBucket) oldBucket.three;
if (this.nonNullTableObjectEquals(bucket.zero, key))
{
bucket.zero = bucket.removeLast(0);
if (bucket.zero == null)
{
oldBucket.three = null;
}
this.occupied--;
return true;
}
if (bucket.one == null)
{
return false;
}
if (this.nonNullTableObjectEquals(bucket.one, key))
{
bucket.one = bucket.removeLast(1);
this.occupied--;
return true;
}
if (bucket.two == null)
{
return false;
}
if (this.nonNullTableObjectEquals(bucket.two, key))
{
bucket.two = bucket.removeLast(2);
this.occupied--;
return true;
}
if (bucket.three == null)
{
return false;
}
if (bucket.three instanceof ChainedBucket)
{
oldBucket = bucket;
continue;
}
if (this.nonNullTableObjectEquals(bucket.three, key))
{
bucket.three = bucket.removeLast(3);
this.occupied--;
return true;
}
return false;
}
while (true);
}
public int size()
{
return this.occupied;
}
@Override
public boolean equals(Object object)
{
if (this == object)
{
return true;
}
if (!(object instanceof Set))
{
return false;
}
Set<?> other = (Set<?>) object;
return this.size() == other.size() && this.containsAll(other);
}
@Override
public int hashCode()
{
int hashCode = 0;
for (int i = 0; i < this.table.length; i++)
{
Object cur = this.table[i];
if (cur instanceof ChainedBucket)
{
hashCode += this.chainedHashCode((ChainedBucket) cur);
}
else if (cur != null)
{
hashCode += cur == NULL_KEY ? 0 : cur.hashCode();
}
}
return hashCode;
}
private int chainedHashCode(ChainedBucket bucket)
{
int hashCode = 0;
do
{
hashCode += bucket.zero == NULL_KEY ? 0 : bucket.zero.hashCode();
if (bucket.one == null)
{
return hashCode;
}
hashCode += bucket.one == NULL_KEY ? 0 : bucket.one.hashCode();
if (bucket.two == null)
{
return hashCode;
}
hashCode += bucket.two == NULL_KEY ? 0 : bucket.two.hashCode();
if (bucket.three == null)
{
return hashCode;
}
if (bucket.three instanceof ChainedBucket)
{
bucket = (ChainedBucket) bucket.three;
continue;
}
hashCode += bucket.three == NULL_KEY ? 0 : bucket.three.hashCode();
return hashCode;
}
while (true);
}
public void readExternal(ObjectInput in) throws IOException, ClassNotFoundException
{
int size = in.readInt();
this.loadFactor = in.readFloat();
this.init(Math.max((int) (size / this.loadFactor) + 1, DEFAULT_INITIAL_CAPACITY));
for (int i = 0; i < size; i++)
{
this.add((T) in.readObject());
}
}
public void writeExternal(ObjectOutput out) throws IOException
{
out.writeInt(this.size());
out.writeFloat(this.loadFactor);
for (int i = 0; i < this.table.length; i++)
{
Object o = this.table[i];
if (o != null)
{
if (o instanceof ChainedBucket)
{
this.writeExternalChain(out, (ChainedBucket) o);
}
else
{
out.writeObject(this.nonSentinel(o));
}
}
}
}
private void writeExternalChain(ObjectOutput out, ChainedBucket bucket) throws IOException
{
do
{
out.writeObject(this.nonSentinel(bucket.zero));
if (bucket.one == null)
{
return;
}
out.writeObject(this.nonSentinel(bucket.one));
if (bucket.two == null)
{
return;
}
out.writeObject(this.nonSentinel(bucket.two));
if (bucket.three == null)
{
return;
}
if (bucket.three instanceof ChainedBucket)
{
bucket = (ChainedBucket) bucket.three;
continue;
}
out.writeObject(this.nonSentinel(bucket.three));
return;
}
while (true);
}
private void addIfFound(T key, UnifiedSet<T> other)
{
int index = this.index(key);
Object cur = this.table[index];
if (cur == null)
{
return;
}
if (cur instanceof ChainedBucket)
{
this.addIfFoundFromChain((ChainedBucket) cur, key, other);
return;
}
if (this.nonNullTableObjectEquals(cur, key))
{
other.add(this.nonSentinel(cur));
}
}
private void addIfFoundFromChain(ChainedBucket bucket, T key, UnifiedSet<T> other)
{
do
{
if (this.nonNullTableObjectEquals(bucket.zero, key))
{
other.add(this.nonSentinel(bucket.zero));
return;
}
if (bucket.one == null)
{
return;
}
if (this.nonNullTableObjectEquals(bucket.one, key))
{
other.add(this.nonSentinel(bucket.one));
return;
}
if (bucket.two == null)
{
return;
}
if (this.nonNullTableObjectEquals(bucket.two, key))
{
other.add(this.nonSentinel(bucket.two));
return;
}
if (bucket.three == null)
{
return;
}
if (bucket.three instanceof ChainedBucket)
{
bucket = (ChainedBucket) bucket.three;
continue;
}
if (this.nonNullTableObjectEquals(bucket.three, key))
{
other.add(this.nonSentinel(bucket.three));
return;
}
return;
}
while (true);
}
public boolean retainAllIterable(Iterable<?> iterable)
{
if (iterable instanceof Set)
{
return this.retainAllFromSet((Set<?>) iterable);
}
return this.retainAllFromNonSet(iterable);
}
private boolean retainAllFromNonSet(Iterable<?> iterable)
{
int retainedSize = Iterate.sizeOf(iterable);
UnifiedSet<T> retainedCopy = new UnifiedSet<T>(retainedSize, this.loadFactor);
for (Object key : iterable)
{
this.addIfFound((T) key, retainedCopy);
}
if (retainedCopy.size() < this.size())
{
this.maxSize = retainedCopy.maxSize;
this.occupied = retainedCopy.occupied;
this.table = retainedCopy.table;
return true;
}
return false;
}
private boolean retainAllFromSet(Set<?> collection)
{
// TODO: turn iterator into a loop
boolean result = false;
Iterator<T> e = this.iterator();
while (e.hasNext())
{
if (!collection.contains(e.next()))
{
e.remove();
result = true;
}
}
return result;
}
@Override
public UnifiedSet<T> clone()
{
return new UnifiedSet<T>(this);
}
@Override
public Object[] toArray()
{
Object[] result = new Object[this.occupied];
this.copyToArray(result);
return result;
}
private void copyToArray(Object[] result)
{
Object[] table = this.table;
int count = 0;
for (int i = 0; i < table.length; i++)
{
Object cur = table[i];
if (cur != null)
{
if (cur instanceof ChainedBucket)
{
ChainedBucket bucket = (ChainedBucket) cur;
count = this.copyBucketToArray(result, bucket, count);
}
else
{
result[count++] = this.nonSentinel(cur);
}
}
}
}
private int copyBucketToArray(Object[] result, ChainedBucket bucket, int count)
{
do
{
result[count++] = this.nonSentinel(bucket.zero);
if (bucket.one == null)
{
break;
}
result[count++] = this.nonSentinel(bucket.one);
if (bucket.two == null)
{
break;
}
result[count++] = this.nonSentinel(bucket.two);
if (bucket.three == null)
{
break;
}
if (bucket.three instanceof ChainedBucket)
{
bucket = (ChainedBucket) bucket.three;
continue;
}
result[count++] = this.nonSentinel(bucket.three);
break;
}
while (true);
return count;
}
@Override
public <T> T[] toArray(T[] array)
{
int size = this.size();
T[] result = array.length < size
? (T[]) Array.newInstance(array.getClass().getComponentType(), size)
: array;
this.copyToArray(result);
if (size < result.length)
{
result[size] = null;
}
return result;
}
public Iterator<T> iterator()
{
return new PositionalIterator();
}
protected class PositionalIterator implements Iterator<T>
{
protected int count;
protected int position;
protected int chainPosition;
protected boolean lastReturned;
public boolean hasNext()
{
return this.count < UnifiedSet.this.size();
}
public void remove()
{
if (!this.lastReturned)
{
throw new IllegalStateException("next() must be called as many times as remove()");
}
this.count--;
UnifiedSet.this.occupied--;
if (this.chainPosition != 0)
{
this.removeFromChain();
return;
}
int pos = this.position - 1;
Object key = UnifiedSet.this.table[pos];
if (key instanceof ChainedBucket)
{
this.removeLastFromChain((ChainedBucket) key, pos);
return;
}
UnifiedSet.this.table[pos] = null;
this.position = pos;
this.lastReturned = false;
}
protected void removeFromChain()
{
ChainedBucket chain = (ChainedBucket) UnifiedSet.this.table[this.position];
chain.remove(--this.chainPosition);
this.lastReturned = false;
}
protected void removeLastFromChain(ChainedBucket bucket, int tableIndex)
{
bucket.removeLast(0);
if (bucket.zero == null)
{
UnifiedSet.this.table[tableIndex] = null;
}
this.lastReturned = false;
}
protected T nextFromChain()
{
ChainedBucket bucket = (ChainedBucket) UnifiedSet.this.table[this.position];
Object cur = bucket.get(this.chainPosition);
this.chainPosition++;
if (bucket.get(this.chainPosition) == null)
{
this.chainPosition = 0;
this.position++;
}
this.lastReturned = true;
return UnifiedSet.this.nonSentinel(cur);
}
public T next()
{
if (!this.hasNext())
{
throw new NoSuchElementException("next() called, but the iterator is exhausted");
}
this.count++;
Object[] table = UnifiedSet.this.table;
if (this.chainPosition != 0)
{
return this.nextFromChain();
}
while (table[this.position] == null)
{
this.position++;
}
Object cur = table[this.position];
if (cur instanceof ChainedBucket)
{
return this.nextFromChain();
}
this.position++;
this.lastReturned = true;
return UnifiedSet.this.nonSentinel(cur);
}
}
private static final class ChainedBucket
{
private Object zero;
private Object one;
private Object two;
private Object three;
private ChainedBucket()
{
}
private ChainedBucket(Object first, Object second)
{
this.zero = first;
this.one = second;
}
public void remove(int i)
{
if (i > 3)
{
this.removeLongChain(this, i - 3);
}
else
{
switch (i)
{
case 0:
this.zero = this.removeLast(0);
return;
case 1:
this.one = this.removeLast(1);
return;
case 2:
this.two = this.removeLast(2);
return;
case 3:
if (this.three instanceof ChainedBucket)
{
this.removeLongChain(this, i - 3);
return;
}
this.three = null;
return;
default:
throw new AssertionError();
}
}
}
private void removeLongChain(ChainedBucket oldBucket, int i)
{
do
{
ChainedBucket bucket = (ChainedBucket) oldBucket.three;
switch (i)
{
case 0:
bucket.zero = bucket.removeLast(0);
return;
case 1:
bucket.one = bucket.removeLast(1);
return;
case 2:
bucket.two = bucket.removeLast(2);
return;
case 3:
if (bucket.three instanceof ChainedBucket)
{
i -= 3;
oldBucket = bucket;
continue;
}
bucket.three = null;
return;
default:
if (bucket.three instanceof ChainedBucket)
{
i -= 3;
oldBucket = bucket;
continue;
}
throw new AssertionError();
}
}
while (true);
}
public Object get(int i)
{
ChainedBucket bucket = this;
while (i > 3 && bucket.three instanceof ChainedBucket)
{
bucket = (ChainedBucket) bucket.three;
i -= 3;
}
do
{
switch (i)
{
case 0:
return bucket.zero;
case 1:
return bucket.one;
case 2:
return bucket.two;
case 3:
if (bucket.three instanceof ChainedBucket)
{
i -= 3;
bucket = (ChainedBucket) bucket.three;
continue;
}
return bucket.three;
case 4:
return null; // this happens when a bucket is exactly full and we're iterating
default:
throw new AssertionError();
}
}
while (true);
}
public Object removeLast(int cur)
{
if (this.three instanceof ChainedBucket)
{
return this.removeLast(this);
}
if (this.three != null)
{
Object result = this.three;
this.three = null;
return cur == 3 ? null : result;
}
if (this.two != null)
{
Object result = this.two;
this.two = null;
return cur == 2 ? null : result;
}
if (this.one != null)
{
Object result = this.one;
this.one = null;
return cur == 1 ? null : result;
}
this.zero = null;
return null;
}
private Object removeLast(ChainedBucket oldBucket)
{
do
{
ChainedBucket bucket = (ChainedBucket) oldBucket.three;
if (bucket.three instanceof ChainedBucket)
{
oldBucket = bucket;
continue;
}
if (bucket.three != null)
{
Object result = bucket.three;
bucket.three = null;
return result;
}
if (bucket.two != null)
{
Object result = bucket.two;
bucket.two = null;
return result;
}
if (bucket.one != null)
{
Object result = bucket.one;
bucket.one = null;
return result;
}
Object result = bucket.zero;
oldBucket.three = null;
return result;
}
while (true);
}
public ChainedBucket copy()
{
ChainedBucket result = new ChainedBucket();
ChainedBucket dest = result;
ChainedBucket src = this;
do
{
dest.zero = src.zero;
dest.one = src.one;
dest.two = src.two;
if (src.three instanceof ChainedBucket)
{
dest.three = new ChainedBucket();
src = (ChainedBucket) src.three;
dest = (ChainedBucket) dest.three;
continue;
}
dest.three = src.three;
return result;
}
while (true);
}
}
public <V> UnifiedSetMultimap<V, T> groupBy(
Function<? super T, ? extends V> function)
{
return this.groupBy(function, UnifiedSetMultimap.<V, T>newMultimap());
}
public T get(T key)
{
int index = this.index(key);
Object cur = this.table[index];
if (cur == null)
{
return null;
}
if (cur instanceof ChainedBucket)
{
return this.chainedGet(key, (ChainedBucket) cur);
}
if (this.nonNullTableObjectEquals(cur, key))
{
return (T) cur;
}
return null;
}
private T chainedGet(T key, ChainedBucket bucket)
{
do
{
if (this.nonNullTableObjectEquals(bucket.zero, key))
{
return this.nonSentinel(bucket.zero);
}
if (bucket.one == null)
{
return null;
}
if (this.nonNullTableObjectEquals(bucket.one, key))
{
return this.nonSentinel(bucket.one);
}
if (bucket.two == null)
{
return null;
}
if (this.nonNullTableObjectEquals(bucket.two, key))
{
return this.nonSentinel(bucket.two);
}
if (bucket.three instanceof ChainedBucket)
{
bucket = (ChainedBucket) bucket.three;
continue;
}
if (bucket.three == null)
{
return null;
}
if (this.nonNullTableObjectEquals(bucket.three, key))
{
return this.nonSentinel(bucket.three);
}
return null;
}
while (true);
}
public T put(T key)
{
int index = this.index(key);
Object cur = this.table[index];
if (cur == null)
{
this.table[index] = UnifiedSet.toSentinelIfNull(key);
if (++this.occupied > this.maxSize)
{
this.rehash();
}
return key;
}
if (cur instanceof ChainedBucket || !this.nonNullTableObjectEquals(cur, key))
{
return this.chainedPut(key, index);
}
return this.nonSentinel(cur);
}
private T chainedPut(T key, int index)
{
if (this.table[index] instanceof ChainedBucket)
{
ChainedBucket bucket = (ChainedBucket) this.table[index];
do
{
if (this.nonNullTableObjectEquals(bucket.zero, key))
{
return this.nonSentinel(bucket.zero);
}
if (bucket.one == null)
{
bucket.one = UnifiedSet.toSentinelIfNull(key);
if (++this.occupied > this.maxSize)
{
this.rehash();
}
return key;
}
if (this.nonNullTableObjectEquals(bucket.one, key))
{
return this.nonSentinel(bucket.one);
}
if (bucket.two == null)
{
bucket.two = UnifiedSet.toSentinelIfNull(key);
if (++this.occupied > this.maxSize)
{
this.rehash();
}
return key;
}
if (this.nonNullTableObjectEquals(bucket.two, key))
{
return this.nonSentinel(bucket.two);
}
if (bucket.three instanceof ChainedBucket)
{
bucket = (ChainedBucket) bucket.three;
continue;
}
if (bucket.three == null)
{
bucket.three = UnifiedSet.toSentinelIfNull(key);
if (++this.occupied > this.maxSize)
{
this.rehash();
}
return key;
}
if (this.nonNullTableObjectEquals(bucket.three, key))
{
return this.nonSentinel(bucket.three);
}
bucket.three = new ChainedBucket(bucket.three, key);
if (++this.occupied > this.maxSize)
{
this.rehash();
}
return key;
}
while (true);
}
ChainedBucket newBucket = new ChainedBucket(this.table[index], key);
this.table[index] = newBucket;
if (++this.occupied > this.maxSize)
{
this.rehash();
}
return key;
}
public T removeFromPool(T key)
{
int index = this.index(key);
Object cur = this.table[index];
if (cur == null)
{
return null;
}
if (cur instanceof ChainedBucket)
{
return this.removeFromChainForPool((ChainedBucket) cur, key, index);
}
if (this.nonNullTableObjectEquals(cur, key))
{
this.table[index] = null;
this.occupied--;
return this.nonSentinel(cur);
}
return null;
}
private T removeFromChainForPool(ChainedBucket bucket, T key, int index)
{
if (this.nonNullTableObjectEquals(bucket.zero, key))
{
Object result = bucket.zero;
bucket.zero = bucket.removeLast(0);
if (bucket.zero == null)
{
this.table[index] = null;
}
this.occupied--;
return this.nonSentinel(result);
}
if (bucket.one == null)
{
return null;
}
if (this.nonNullTableObjectEquals(bucket.one, key))
{
Object result = bucket.one;
bucket.one = bucket.removeLast(1);
this.occupied--;
return this.nonSentinel(result);
}
if (bucket.two == null)
{
return null;
}
if (this.nonNullTableObjectEquals(bucket.two, key))
{
Object result = bucket.two;
bucket.two = bucket.removeLast(2);
this.occupied--;
return this.nonSentinel(result);
}
if (bucket.three == null)
{
return null;
}
if (bucket.three instanceof ChainedBucket)
{
return this.removeDeepChainForPool(bucket, key);
}
if (this.nonNullTableObjectEquals(bucket.three, key))
{
Object result = bucket.three;
bucket.three = bucket.removeLast(3);
this.occupied--;
return this.nonSentinel(result);
}
return null;
}
private T removeDeepChainForPool(ChainedBucket oldBucket, T key)
{
do
{
ChainedBucket bucket = (ChainedBucket) oldBucket.three;
if (this.nonNullTableObjectEquals(bucket.zero, key))
{
Object result = bucket.zero;
bucket.zero = bucket.removeLast(0);
if (bucket.zero == null)
{
oldBucket.three = null;
}
this.occupied--;
return this.nonSentinel(result);
}
if (bucket.one == null)
{
return null;
}
if (this.nonNullTableObjectEquals(bucket.one, key))
{
Object result = bucket.one;
bucket.one = bucket.removeLast(1);
this.occupied--;
return this.nonSentinel(result);
}
if (bucket.two == null)
{
return null;
}
if (this.nonNullTableObjectEquals(bucket.two, key))
{
Object result = bucket.two;
bucket.two = bucket.removeLast(2);
this.occupied--;
return this.nonSentinel(result);
}
if (bucket.three == null)
{
return null;
}
if (bucket.three instanceof ChainedBucket)
{
oldBucket = bucket;
continue;
}
if (this.nonNullTableObjectEquals(bucket.three, key))
{
Object result = bucket.three;
bucket.three = bucket.removeLast(3);
this.occupied--;
return this.nonSentinel(result);
}
return null;
}
while (true);
}
private T nonSentinel(Object key)
{
return key == NULL_KEY ? null : (T) key;
}
private static Object toSentinelIfNull(Object key)
{
if (key == null)
{
return NULL_KEY;
}
return key;
}
private boolean nonNullTableObjectEquals(Object cur, T key)
{
return cur == key || (cur == NULL_KEY ? key == null : cur.equals(key));
}
@Beta
public ParallelUnsortedSetIterable<T> asParallel(ExecutorService executorService, int batchSize)
{
if (executorService == null)
{
throw new NullPointerException();
}
if (batchSize < 1)
{
throw new IllegalArgumentException();
}
return new UnifiedSetParallelUnsortedIterable(executorService, batchSize);
}
private final class UnifiedUnsortedSetBatch extends AbstractBatch<T> implements RootUnsortedSetBatch<T>
{
private final int chunkStartIndex;
private final int chunkEndIndex;
private UnifiedUnsortedSetBatch(int chunkStartIndex, int chunkEndIndex)
{
this.chunkStartIndex = chunkStartIndex;
this.chunkEndIndex = chunkEndIndex;
}
public void forEach(Procedure<? super T> procedure)
{
UnifiedSet.this.each(procedure, this.chunkStartIndex, this.chunkEndIndex);
}
public boolean anySatisfy(Predicate<? super T> predicate)
{
return UnifiedSet.this.shortCircuit(predicate, true, true, false, this.chunkStartIndex, this.chunkEndIndex);
}
public boolean allSatisfy(Predicate<? super T> predicate)
{
return UnifiedSet.this.shortCircuit(predicate, false, false, true, this.chunkStartIndex, this.chunkEndIndex);
}
public T detect(Predicate<? super T> predicate)
{
return UnifiedSet.this.detect(predicate, this.chunkStartIndex, this.chunkEndIndex);
}
public UnsortedSetBatch<T> select(Predicate<? super T> predicate)
{
return new SelectUnsortedSetBatch<T>(this, predicate);
}
public <V> UnsortedBagBatch<V> collect(Function<? super T, ? extends V> function)
{
return new CollectUnsortedBagBatch<T, V>(this, function);
}
public <V> UnsortedBagBatch<V> flatCollect(Function<? super T, ? extends Iterable<V>> function)
{
return new FlatCollectUnsortedBagBatch<T, V>(this, function);
}
}
private final class UnifiedSetParallelUnsortedIterable extends AbstractParallelUnsortedSetIterable<T, RootUnsortedSetBatch<T>>
{
private final ExecutorService executorService;
private final int batchSize;
private UnifiedSetParallelUnsortedIterable(ExecutorService executorService, int batchSize)
{
this.executorService = executorService;
this.batchSize = batchSize;
}
@Override
public ExecutorService getExecutorService()
{
return this.executorService;
}
@Override
public int getBatchSize()
{
return this.batchSize;
}
@Override
public LazyIterable<RootUnsortedSetBatch<T>> split()
{
return new UnifiedSetParallelSplitLazyIterable();
}
public void forEach(Procedure<? super T> procedure)
{
AbstractParallelIterable.forEach(this, procedure);
}
public boolean anySatisfy(Predicate<? super T> predicate)
{
return AbstractParallelIterable.anySatisfy(this, predicate);
}
public boolean allSatisfy(Predicate<? super T> predicate)
{
return AbstractParallelIterable.allSatisfy(this, predicate);
}
public T detect(Predicate<? super T> predicate)
{
return AbstractParallelIterable.detect(this, predicate);
}
@Override
public Object[] toArray()
{
// TODO: Implement in parallel
return UnifiedSet.this.toArray();
}
@Override
public <E> E[] toArray(E[] array)
{
// TODO: Implement in parallel
return UnifiedSet.this.toArray(array);
}
private class UnifiedSetParallelSplitIterator implements Iterator<RootUnsortedSetBatch<T>>
{
protected int chunkIndex;
public boolean hasNext()
{
return this.chunkIndex * UnifiedSetParallelUnsortedIterable.this.batchSize < UnifiedSet.this.table.length;
}
public RootUnsortedSetBatch<T> next()
{
int chunkStartIndex = this.chunkIndex * UnifiedSetParallelUnsortedIterable.this.batchSize;
int chunkEndIndex = (this.chunkIndex + 1) * UnifiedSetParallelUnsortedIterable.this.batchSize;
int truncatedChunkEndIndex = Math.min(chunkEndIndex, UnifiedSet.this.table.length);
this.chunkIndex++;
return new UnifiedUnsortedSetBatch(chunkStartIndex, truncatedChunkEndIndex);
}
public void remove()
{
throw new UnsupportedOperationException("Cannot call remove() on " + this.getClass().getSimpleName());
}
}
private class UnifiedSetParallelSplitLazyIterable
extends AbstractLazyIterable<RootUnsortedSetBatch<T>>
{
public void each(Procedure<? super RootUnsortedSetBatch<T>> procedure)
{
for (RootUnsortedSetBatch<T> chunk : this)
{
procedure.value(chunk);
}
}
public Iterator<RootUnsortedSetBatch<T>> iterator()
{
return new UnifiedSetParallelSplitIterator();
}
}
}
}