org.eclipse.collections.impl.bag.mutable.AbstractMutableBagIterable Maven / Gradle / Ivy
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/*
* Copyright (c) 2022 Goldman Sachs and others.
* All rights reserved. This program and the accompanying materials
* are made available under the terms of the Eclipse Public License v1.0
* and Eclipse Distribution License v. 1.0 which accompany this distribution.
* The Eclipse Public License is available at http://www.eclipse.org/legal/epl-v10.html
* and the Eclipse Distribution License is available at
* http://www.eclipse.org/org/documents/edl-v10.php.
*/
package org.eclipse.collections.impl.bag.mutable;
import java.util.Collection;
import java.util.Comparator;
import java.util.Iterator;
import java.util.Optional;
import org.eclipse.collections.api.RichIterable;
import org.eclipse.collections.api.bag.Bag;
import org.eclipse.collections.api.bag.MutableBag;
import org.eclipse.collections.api.bag.MutableBagIterable;
import org.eclipse.collections.api.block.function.Function;
import org.eclipse.collections.api.block.function.Function0;
import org.eclipse.collections.api.block.function.Function2;
import org.eclipse.collections.api.block.function.primitive.DoubleFunction;
import org.eclipse.collections.api.block.function.primitive.FloatFunction;
import org.eclipse.collections.api.block.function.primitive.IntFunction;
import org.eclipse.collections.api.block.function.primitive.LongFunction;
import org.eclipse.collections.api.block.predicate.Predicate;
import org.eclipse.collections.api.block.predicate.Predicate2;
import org.eclipse.collections.api.collection.MutableCollection;
import org.eclipse.collections.api.factory.Bags;
import org.eclipse.collections.api.factory.Lists;
import org.eclipse.collections.api.factory.Sets;
import org.eclipse.collections.api.factory.primitive.ObjectDoubleMaps;
import org.eclipse.collections.api.factory.primitive.ObjectLongMaps;
import org.eclipse.collections.api.list.MutableList;
import org.eclipse.collections.api.map.MutableMap;
import org.eclipse.collections.api.map.primitive.MutableObjectDoubleMap;
import org.eclipse.collections.api.map.primitive.MutableObjectLongMap;
import org.eclipse.collections.api.tuple.Twin;
import org.eclipse.collections.api.tuple.primitive.ObjectIntPair;
import org.eclipse.collections.impl.bag.AbstractBag;
import org.eclipse.collections.impl.block.factory.Predicates2;
import org.eclipse.collections.impl.block.factory.PrimitiveFunctions;
import org.eclipse.collections.impl.block.factory.Procedures2;
import org.eclipse.collections.impl.map.mutable.UnifiedMap;
import org.eclipse.collections.impl.utility.Iterate;
import org.eclipse.collections.impl.utility.internal.IterableIterate;
public abstract class AbstractMutableBagIterable
extends AbstractBag
implements MutableBagIterable
{
protected abstract RichIterable getKeysView();
@Override
public boolean addAll(Collection source)
{
return this.addAllIterable(source);
}
@Override
public boolean addAllIterable(Iterable iterable)
{
if (iterable instanceof Bag)
{
return this.addAllBag((Bag) iterable);
}
int oldSize = this.size();
Iterate.forEachWith(iterable, Procedures2.addToCollection(), this);
return oldSize != this.size();
}
protected boolean addAllBag(Bag source)
{
source.forEachWithOccurrences(this::addOccurrences);
return source.notEmpty();
}
@Override
public boolean removeAll(Collection collection)
{
return this.removeAllIterable(collection);
}
@Override
public boolean retainAll(Collection collection)
{
return this.retainAllIterable(collection);
}
@Override
public boolean retainAllIterable(Iterable iterable)
{
int oldSize = this.size();
this.removeIfWith(Predicates2.notIn(), Sets.mutable.withAll(iterable));
return this.size() != oldSize;
}
@Override
public Twin> selectAndRejectWith(Predicate2 predicate, P parameter)
{
return IterableIterate.selectAndRejectWith(this, predicate, parameter);
}
@Override
public T getFirst()
{
return this.getKeysView().getFirst();
}
@Override
public T getLast()
{
return this.getKeysView().getLast();
}
@Override
public MutableMap groupByUniqueKey(Function function)
{
return this.groupByUniqueKey(function, UnifiedMap.newMap(this.size()));
}
@Override
public RichIterable> chunk(int size)
{
if (size <= 0)
{
throw new IllegalArgumentException("Size for groups must be positive but was: " + size);
}
Iterator iterator = this.iterator();
MutableList> result = Lists.mutable.empty();
while (iterator.hasNext())
{
MutableCollection batch = this.newEmpty();
for (int i = 0; i < size && iterator.hasNext(); i++)
{
batch.add(iterator.next());
}
result.add(batch);
}
return result;
}
@Override
public T detect(Predicate predicate)
{
return this.getKeysView().detect(predicate);
}
@Override
public T detectWith(Predicate2 predicate, P parameter)
{
return this.getKeysView().detectWith(predicate, parameter);
}
@Override
public Optional detectOptional(Predicate predicate)
{
return this.getKeysView().detectOptional(predicate);
}
@Override
public Optional detectWithOptional(Predicate2 predicate, P parameter)
{
return this.getKeysView().detectWithOptional(predicate, parameter);
}
@Override
public T detectIfNone(Predicate predicate, Function0 function)
{
return this.getKeysView().detectIfNone(predicate, function);
}
@Override
public T detectWithIfNone(
Predicate2 predicate,
P parameter,
Function0 function)
{
return this.getKeysView().detectIfNone(each -> predicate.accept(each, parameter), function);
}
@Override
public boolean anySatisfy(Predicate predicate)
{
return this.getKeysView().anySatisfy(predicate);
}
@Override
public
boolean anySatisfyWith(Predicate2 predicate, P parameter)
{
return this.getKeysView().anySatisfyWith(predicate, parameter);
}
@Override
public boolean allSatisfy(Predicate predicate)
{
return this.getKeysView().allSatisfy(predicate);
}
@Override
public
boolean allSatisfyWith(Predicate2 predicate, P parameter)
{
return this.getKeysView().allSatisfyWith(predicate, parameter);
}
@Override
public boolean noneSatisfy(Predicate predicate)
{
return this.getKeysView().noneSatisfy(predicate);
}
@Override
public
boolean noneSatisfyWith(Predicate2 predicate, P parameter)
{
return this.getKeysView().noneSatisfyWith(predicate, parameter);
}
/**
* @since 9.0
*/
@Override
public MutableBag countBy(Function function)
{
return this.countBy(function, Bags.mutable.empty());
}
/**
* @since 9.0
*/
@Override
public MutableBag countByWith(Function2 function, P parameter)
{
return this.countByWith(function, parameter, Bags.mutable.empty());
}
/**
* @since 10.0.0
*/
@Override
public MutableBag countByEach(Function> function)
{
return this.countByEach(function, Bags.mutable.empty());
}
@Override
public T min()
{
return this.getKeysView().min();
}
@Override
public T min(Comparator comparator)
{
return this.getKeysView().min(comparator);
}
@Override
public > T minBy(Function function)
{
return this.getKeysView().minBy(function);
}
@Override
public T max()
{
return this.getKeysView().max();
}
@Override
public T max(Comparator comparator)
{
return this.getKeysView().max(comparator);
}
@Override
public > T maxBy(Function function)
{
return this.getKeysView().maxBy(function);
}
@Override
public MutableObjectLongMap sumByInt(Function groupBy, IntFunction function)
{
MutableObjectLongMap result = ObjectLongMaps.mutable.empty();
this.forEachWithOccurrences((each, occurrences) -> result.addToValue(
groupBy.valueOf(each),
function.intValueOf(each) * (long) occurrences));
return result;
}
@Override
public MutableObjectDoubleMap sumByFloat(Function groupBy, FloatFunction function)
{
MutableObjectDoubleMap result = ObjectDoubleMaps.mutable.empty();
return this.injectInto(result, PrimitiveFunctions.sumByFloatFunction(groupBy, function));
}
@Override
public MutableObjectLongMap sumByLong(Function groupBy, LongFunction function)
{
MutableObjectLongMap result = ObjectLongMaps.mutable.empty();
this.forEachWithOccurrences((each, occurrences) -> result.addToValue(
groupBy.valueOf(each),
function.longValueOf(each) * (long) occurrences));
return result;
}
@Override
public MutableObjectDoubleMap sumByDouble(Function groupBy, DoubleFunction function)
{
MutableObjectDoubleMap result = ObjectDoubleMaps.mutable.empty();
return this.injectInto(result, PrimitiveFunctions.sumByDoubleFunction(groupBy, function));
}
@Override
public MutableList> topOccurrences(int n)
{
return this.occurrencesSortingBy(n, item -> -item.getTwo(), Lists.mutable.empty());
}
@Override
public MutableList> bottomOccurrences(int n)
{
return this.occurrencesSortingBy(n, ObjectIntPair::getTwo, Lists.mutable.empty());
}
}