/*
* 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.lazy.primitive;
import java.util.Iterator;
import com.gs.collections.api.BooleanIterable;
import com.gs.collections.api.LazyIterable;
import com.gs.collections.api.bag.primitive.MutableBooleanBag;
import com.gs.collections.api.block.function.primitive.BooleanFunction;
import com.gs.collections.api.block.predicate.Predicate;
import com.gs.collections.api.block.predicate.primitive.BooleanPredicate;
import com.gs.collections.api.block.procedure.Procedure2;
import com.gs.collections.api.block.procedure.primitive.BooleanProcedure;
import com.gs.collections.api.block.procedure.primitive.ObjectIntProcedure;
import com.gs.collections.api.iterator.BooleanIterator;
import com.gs.collections.api.list.primitive.MutableBooleanList;
import com.gs.collections.api.set.primitive.MutableBooleanSet;
import com.gs.collections.impl.bag.mutable.primitive.BooleanHashBag;
import com.gs.collections.impl.list.mutable.primitive.BooleanArrayList;
import com.gs.collections.impl.set.mutable.primitive.BooleanHashSet;
import net.jcip.annotations.Immutable;
/**
* A CollectIntIterable is an iterable that transforms a source iterable using an IntFunction as it iterates.
*/
@Immutable
public class CollectBooleanIterable<T>
extends AbstractLazyBooleanIterable
{
private final LazyIterable<T> iterable;
private final BooleanFunction<? super T> function;
private final BooleanFunctionToProcedure<T> booleanFunctionToProcedure;
public CollectBooleanIterable(LazyIterable<T> adapted, BooleanFunction<? super T> function)
{
this.iterable = adapted;
this.function = function;
this.booleanFunctionToProcedure = new BooleanFunctionToProcedure<T>(function);
}
public BooleanIterator booleanIterator()
{
return new BooleanIterator()
{
private final Iterator<T> iterator = CollectBooleanIterable.this.iterable.iterator();
public boolean next()
{
return CollectBooleanIterable.this.function.booleanValueOf(this.iterator.next());
}
public boolean hasNext()
{
return this.iterator.hasNext();
}
};
}
public void forEach(BooleanProcedure procedure)
{
this.each(procedure);
}
/**
* @since 7.0.
*/
public void each(BooleanProcedure procedure)
{
this.iterable.forEachWith(this.booleanFunctionToProcedure, procedure);
}
@Override
public int size()
{
return this.iterable.size();
}
@Override
public boolean isEmpty()
{
return this.iterable.isEmpty();
}
@Override
public boolean notEmpty()
{
return this.iterable.notEmpty();
}
@Override
public int count(final BooleanPredicate predicate)
{
return this.iterable.count(new Predicate<T>()
{
public boolean accept(T each)
{
return predicate.accept(CollectBooleanIterable.this.function.booleanValueOf(each));
}
});
}
@Override
public boolean anySatisfy(final BooleanPredicate predicate)
{
return this.iterable.anySatisfy(new Predicate<T>()
{
public boolean accept(T each)
{
return predicate.accept(CollectBooleanIterable.this.function.booleanValueOf(each));
}
});
}
@Override
public boolean allSatisfy(final BooleanPredicate predicate)
{
return this.iterable.allSatisfy(new Predicate<T>()
{
public boolean accept(T each)
{
return predicate.accept(CollectBooleanIterable.this.function.booleanValueOf(each));
}
});
}
@Override
public boolean noneSatisfy(final BooleanPredicate predicate)
{
return this.iterable.allSatisfy(new Predicate<T>()
{
public boolean accept(T each)
{
return !predicate.accept(CollectBooleanIterable.this.function.booleanValueOf(each));
}
});
}
@Override
public boolean[] toArray()
{
final boolean[] array = new boolean[this.size()];
this.iterable.forEachWithIndex(new ObjectIntProcedure<T>()
{
public void value(T each, int index)
{
array[index] = CollectBooleanIterable.this.function.booleanValueOf(each);
}
});
return array;
}
@Override
public MutableBooleanList toList()
{
return BooleanArrayList.newList(this);
}
@Override
public MutableBooleanSet toSet()
{
return BooleanHashSet.newSet(this);
}
@Override
public MutableBooleanBag toBag()
{
return BooleanHashBag.newBag(this);
}
@Override
public boolean containsAll(boolean... source)
{
for (boolean value : source)
{
if (!this.contains(value))
{
return false;
}
}
return true;
}
@Override
public boolean containsAll(BooleanIterable source)
{
for (BooleanIterator iterator = source.booleanIterator(); iterator.hasNext(); )
{
if (!this.contains(iterator.next()))
{
return false;
}
}
return true;
}
private static final class BooleanFunctionToProcedure<T> implements Procedure2<T, BooleanProcedure>
{
private static final long serialVersionUID = 1L;
private final BooleanFunction<? super T> function;
private BooleanFunctionToProcedure(BooleanFunction<? super T> function)
{
this.function = function;
}
public void value(T each, BooleanProcedure procedure)
{
procedure.value(this.function.booleanValueOf(each));
}
}
}