package org.eclipse.collections.impl.bag.sorted.immutable;
import java.util.Comparator;
import org.eclipse.collections.api.bag.sorted.ImmutableSortedBag;
import org.eclipse.collections.api.bag.sorted.SortedBag;
import org.eclipse.collections.api.factory.bag.sorted.ImmutableSortedBagFactory;
import org.eclipse.collections.impl.bag.sorted.mutable.TreeBag;
import org.eclipse.collections.impl.utility.Iterate;
public class ImmutableSortedBagFactoryImpl implements ImmutableSortedBagFactory
{
public static final ImmutableSortedBagFactory INSTANCE = new ImmutableSortedBagFactoryImpl();
@Override
public <T> ImmutableSortedBag<T> empty()
{
return (ImmutableSortedBag<T>) ImmutableEmptySortedBag.INSTANCE;
}
@Override
public <T> ImmutableSortedBag<T> empty(Comparator<? super T> comparator)
{
return new ImmutableEmptySortedBag<>(comparator);
}
@Override
public <T> ImmutableSortedBag<T> of()
{
return this.with();
}
@Override
public <T> ImmutableSortedBag<T> with()
{
return this.empty();
}
@Override
public <T> ImmutableSortedBag<T> of(T... items)
{
return this.with(items);
}
@Override
public <T> ImmutableSortedBag<T> with(T... items)
{
if (items == null || items.length == 0)
{
return this.of();
}
return new ImmutableSortedBagImpl<>(TreeBag.newBagWith(items));
}
@Override
public <T> ImmutableSortedBag<T> ofAll(Iterable<? extends T> items)
{
return this.withAll(items);
}
@Override
public <T> ImmutableSortedBag<T> withAll(Iterable<? extends T> items)
{
if (items instanceof ImmutableSortedBag<?>)
{
return (ImmutableSortedBag<T>) items;
}
return this.of((T[]) Iterate.toArray(items));
}
@Override
public <T> ImmutableSortedBag<T> of(Comparator<? super T> comparator)
{
return this.with(comparator);
}
@Override
public <T> ImmutableSortedBag<T> with(Comparator<? super T> comparator)
{
if (comparator == null)
{
return this.of();
}
return new ImmutableEmptySortedBag<>(comparator);
}
@Override
public <T> ImmutableSortedBag<T> of(Comparator<? super T> comparator, T... items)
{
return this.with(comparator, items);
}
@Override
public <T> ImmutableSortedBag<T> with(Comparator<? super T> comparator, T... items)
{
if (items == null || items.length == 0)
{
return this.of(comparator);
}
return new ImmutableSortedBagImpl<>(TreeBag.newBagWith(comparator, items));
}
@Override
public <T> ImmutableSortedBag<T> ofAll(Comparator<? super T> comparator, Iterable<? extends T> items)
{
return this.withAll(comparator, items);
}
@Override
public <T> ImmutableSortedBag<T> withAll(Comparator<? super T> comparator, Iterable<? extends T> items)
{
return this.of(comparator, (T[]) Iterate.toArray(items));
}
@Override
public <T> ImmutableSortedBag<T> ofSortedBag(SortedBag<T> bag)
{
return this.withSortedBag(bag);
}
@Override
public <T> ImmutableSortedBag<T> withSortedBag(SortedBag<T> bag)
{
if (bag instanceof ImmutableSortedBag)
{
return (ImmutableSortedBag<T>) bag;
}
if (bag.isEmpty())
{
return this.of(bag.comparator());
}
return new ImmutableSortedBagImpl<>(bag);
}
}