/*
* 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.bag.mutable;
import java.io.Externalizable;
import java.io.IOException;
import java.io.ObjectInput;
import java.io.ObjectOutput;
import java.io.Serializable;
import com.gs.collections.api.bag.ImmutableBag;
import com.gs.collections.api.bag.MutableBag;
import com.gs.collections.api.bag.primitive.MutableBooleanBag;
import com.gs.collections.api.bag.primitive.MutableByteBag;
import com.gs.collections.api.bag.primitive.MutableCharBag;
import com.gs.collections.api.bag.primitive.MutableDoubleBag;
import com.gs.collections.api.bag.primitive.MutableFloatBag;
import com.gs.collections.api.bag.primitive.MutableIntBag;
import com.gs.collections.api.bag.primitive.MutableLongBag;
import com.gs.collections.api.bag.primitive.MutableShortBag;
import com.gs.collections.api.block.function.Function;
import com.gs.collections.api.block.function.Function2;
import com.gs.collections.api.block.function.primitive.BooleanFunction;
import com.gs.collections.api.block.function.primitive.ByteFunction;
import com.gs.collections.api.block.function.primitive.CharFunction;
import com.gs.collections.api.block.function.primitive.DoubleFunction;
import com.gs.collections.api.block.function.primitive.FloatFunction;
import com.gs.collections.api.block.function.primitive.IntFunction;
import com.gs.collections.api.block.function.primitive.LongFunction;
import com.gs.collections.api.block.function.primitive.ShortFunction;
import com.gs.collections.api.block.predicate.Predicate;
import com.gs.collections.api.block.predicate.Predicate2;
import com.gs.collections.api.block.predicate.primitive.IntPredicate;
import com.gs.collections.api.block.procedure.Procedure;
import com.gs.collections.api.block.procedure.primitive.ObjectIntProcedure;
import com.gs.collections.api.list.MutableList;
import com.gs.collections.api.map.MutableMap;
import com.gs.collections.api.multimap.bag.MutableBagMultimap;
import com.gs.collections.api.ordered.OrderedIterable;
import com.gs.collections.api.partition.bag.PartitionMutableBag;
import com.gs.collections.api.set.MutableSet;
import com.gs.collections.api.tuple.Pair;
import com.gs.collections.api.tuple.primitive.ObjectIntPair;
import com.gs.collections.impl.collection.mutable.AbstractUnmodifiableMutableCollection;
import com.gs.collections.impl.factory.Bags;
/**
* An unmodifiable view of a bag.
*
* @see MutableBag#asUnmodifiable()
* @since 1.0
*/
public class UnmodifiableBag<T>
extends AbstractUnmodifiableMutableCollection<T>
implements MutableBag<T>, Serializable
{
UnmodifiableBag(MutableBag<? extends T> mutableBag)
{
super(mutableBag);
}
/**
* This method will take a MutableBag and wrap it directly in a UnmodifiableBag.
*/
public static <E, B extends MutableBag<E>> UnmodifiableBag<E> of(B bag)
{
if (bag == null)
{
throw new IllegalArgumentException("cannot create an UnmodifiableBag for null");
}
return new UnmodifiableBag<E>(bag);
}
protected MutableBag<T> getMutableBag()
{
return (MutableBag<T>) this.getMutableCollection();
}
@Override
public MutableBag<T> asUnmodifiable()
{
return this;
}
@Override
public MutableBag<T> asSynchronized()
{
return SynchronizedBag.of(this);
}
@Override
public ImmutableBag<T> toImmutable()
{
return Bags.immutable.withAll(this);
}
@Override
public boolean equals(Object obj)
{
return this.getMutableBag().equals(obj);
}
@Override
public int hashCode()
{
return this.getMutableBag().hashCode();
}
public String toStringOfItemToCount()
{
return this.getMutableBag().toStringOfItemToCount();
}
@Override
public MutableBag<T> newEmpty()
{
return this.getMutableBag().newEmpty();
}
public MutableBag<T> selectByOccurrences(IntPredicate predicate)
{
return this.getMutableBag().selectByOccurrences(predicate);
}
@Override
public MutableBag<T> tap(Procedure<? super T> procedure)
{
this.forEach(procedure);
return this;
}
@Override
public MutableBag<T> select(Predicate<? super T> predicate)
{
return this.getMutableBag().select(predicate);
}
@Override
public <P> MutableBag<T> selectWith(Predicate2<? super T, ? super P> predicate, P parameter)
{
return this.getMutableBag().selectWith(predicate, parameter);
}
@Override
public MutableBag<T> reject(Predicate<? super T> predicate)
{
return this.getMutableBag().reject(predicate);
}
@Override
public <P> MutableBag<T> rejectWith(Predicate2<? super T, ? super P> predicate, P parameter)
{
return this.getMutableBag().rejectWith(predicate, parameter);
}
@Override
public PartitionMutableBag<T> partition(Predicate<? super T> predicate)
{
return this.getMutableBag().partition(predicate);
}
@Override
public <P> PartitionMutableBag<T> partitionWith(Predicate2<? super T, ? super P> predicate, P parameter)
{
return this.getMutableBag().partitionWith(predicate, parameter);
}
@Override
public <S> MutableBag<S> selectInstancesOf(Class<S> clazz)
{
return this.getMutableBag().selectInstancesOf(clazz);
}
@Override
public <V> MutableBag<V> collect(Function<? super T, ? extends V> function)
{
return this.getMutableBag().collect(function);
}
@Override
public MutableBooleanBag collectBoolean(BooleanFunction<? super T> booleanFunction)
{
return this.getMutableBag().collectBoolean(booleanFunction);
}
@Override
public MutableByteBag collectByte(ByteFunction<? super T> byteFunction)
{
return this.getMutableBag().collectByte(byteFunction);
}
@Override
public MutableCharBag collectChar(CharFunction<? super T> charFunction)
{
return this.getMutableBag().collectChar(charFunction);
}
@Override
public MutableDoubleBag collectDouble(DoubleFunction<? super T> doubleFunction)
{
return this.getMutableBag().collectDouble(doubleFunction);
}
@Override
public MutableFloatBag collectFloat(FloatFunction<? super T> floatFunction)
{
return this.getMutableBag().collectFloat(floatFunction);
}
@Override
public MutableIntBag collectInt(IntFunction<? super T> intFunction)
{
return this.getMutableBag().collectInt(intFunction);
}
@Override
public MutableLongBag collectLong(LongFunction<? super T> longFunction)
{
return this.getMutableBag().collectLong(longFunction);
}
@Override
public MutableShortBag collectShort(ShortFunction<? super T> shortFunction)
{
return this.getMutableBag().collectShort(shortFunction);
}
@Override
public <V> MutableBag<V> flatCollect(Function<? super T, ? extends Iterable<V>> function)
{
return this.getMutableBag().flatCollect(function);
}
public MutableList<ObjectIntPair<T>> topOccurrences(int count)
{
return this.getMutableBag().topOccurrences(count);
}
public MutableList<ObjectIntPair<T>> bottomOccurrences(int count)
{
return this.getMutableBag().bottomOccurrences(count);
}
@Override
public <P, A> MutableBag<A> collectWith(Function2<? super T, ? super P, ? extends A> function, P parameter)
{
return this.getMutableBag().collectWith(function, parameter);
}
@Override
public <V> MutableBag<V> collectIf(
Predicate<? super T> predicate,
Function<? super T, ? extends V> function)
{
return this.getMutableBag().collectIf(predicate, function);
}
@Override
public <V> MutableBagMultimap<V, T> groupBy(Function<? super T, ? extends V> function)
{
return this.getMutableBag().groupBy(function);
}
@Override
public <V> MutableBagMultimap<V, T> groupByEach(Function<? super T, ? extends Iterable<V>> function)
{
return this.getMutableBag().groupByEach(function);
}
public void addOccurrences(T item, int occurrences)
{
throw new UnsupportedOperationException("Cannot call addOccurrences() on " + this.getClass().getSimpleName());
}
public boolean removeOccurrences(Object item, int occurrences)
{
throw new UnsupportedOperationException("Cannot call removeOccurrences() on " + this.getClass().getSimpleName());
}
public boolean setOccurrences(T item, int occurrences)
{
throw new UnsupportedOperationException("Cannot call setOccurrences() on " + this.getClass().getSimpleName());
}
public int sizeDistinct()
{
return this.getMutableBag().sizeDistinct();
}
public int occurrencesOf(Object item)
{
return this.getMutableBag().occurrencesOf(item);
}
public void forEachWithOccurrences(ObjectIntProcedure<? super T> objectIntProcedure)
{
this.getMutableBag().forEachWithOccurrences(objectIntProcedure);
}
public MutableMap<T, Integer> toMapOfItemToCount()
{
return this.getMutableBag().toMapOfItemToCount();
}
/**
* @deprecated in 6.0. Use {@link OrderedIterable#zip(Iterable)} instead.
*/
@Deprecated
@Override
public <S> MutableBag<Pair<T, S>> zip(Iterable<S> that)
{
return this.getMutableBag().zip(that);
}
/**
* @deprecated in 6.0. Use {@link OrderedIterable#zipWithIndex()} instead.
*/
@Deprecated
@Override
public MutableSet<Pair<T, Integer>> zipWithIndex()
{
return this.getMutableBag().zipWithIndex();
}
@Override
public MutableBag<T> with(T element)
{
throw new UnsupportedOperationException("Cannot call with() on " + this.getClass().getSimpleName());
}
@Override
public MutableBag<T> without(T element)
{
throw new UnsupportedOperationException("Cannot call without() on " + this.getClass().getSimpleName());
}
@Override
public MutableBag<T> withAll(Iterable<? extends T> elements)
{
throw new UnsupportedOperationException("Cannot call withAll() on " + this.getClass().getSimpleName());
}
@Override
public MutableBag<T> withoutAll(Iterable<? extends T> elements)
{
throw new UnsupportedOperationException("Cannot call withoutAll() on " + this.getClass().getSimpleName());
}
protected Object writeReplace()
{
return new UnmodifiableBagSerializationProxy<T>(this.getMutableBag());
}
private static class UnmodifiableBagSerializationProxy<T> implements Externalizable
{
private static final long serialVersionUID = 1L;
private MutableBag<T> mutableBag;
@SuppressWarnings("UnusedDeclaration")
public UnmodifiableBagSerializationProxy()
{
// Empty constructor for Externalizable class
}
private UnmodifiableBagSerializationProxy(MutableBag<T> bag)
{
this.mutableBag = bag;
}
public void writeExternal(ObjectOutput out) throws IOException
{
try
{
out.writeObject(this.mutableBag);
}
catch (RuntimeException e)
{
if (e.getCause() instanceof IOException)
{
throw (IOException) e.getCause();
}
throw e;
}
}
public void readExternal(ObjectInput in) throws IOException, ClassNotFoundException
{
this.mutableBag = (MutableBag<T>) in.readObject();
}
protected Object readResolve()
{
return this.mutableBag.asUnmodifiable();
}
}
}