/*
* Copyright 2014 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.Arrays;
import java.util.Iterator;
import com.gs.collections.api.IntIterable;
import com.gs.collections.api.LazyIterable;
import com.gs.collections.api.bag.primitive.MutableIntBag;
import com.gs.collections.api.block.function.primitive.IntFunction;
import com.gs.collections.api.block.predicate.Predicate;
import com.gs.collections.api.block.predicate.primitive.IntPredicate;
import com.gs.collections.api.block.procedure.Procedure2;
import com.gs.collections.api.block.procedure.primitive.IntProcedure;
import com.gs.collections.api.block.procedure.primitive.ObjectIntProcedure;
import com.gs.collections.api.iterator.IntIterator;
import com.gs.collections.api.list.primitive.MutableIntList;
import com.gs.collections.api.set.primitive.MutableIntSet;
import com.gs.collections.impl.bag.mutable.primitive.IntHashBag;
import com.gs.collections.impl.list.mutable.primitive.IntArrayList;
import com.gs.collections.impl.set.mutable.primitive.IntHashSet;
import net.jcip.annotations.Immutable;
/**
* A CollectIntIterable is an iterable that transforms a source iterable using an IntFunction as it iterates.
*/
@Immutable
public class CollectIntIterable<T> extends AbstractLazyIntIterable
{
private final LazyIterable<T> iterable;
private final IntFunction<? super T> function;
private final IntFunctionToProcedure intFunctionToProcedure = new IntFunctionToProcedure();
public CollectIntIterable(LazyIterable<T> adapted, IntFunction<? super T> function)
{
this.iterable = adapted;
this.function = function;
}
public IntIterator intIterator()
{
return new IntIterator()
{
private final Iterator<T> iterator = CollectIntIterable.this.iterable.iterator();
public int next()
{
return CollectIntIterable.this.function.intValueOf(this.iterator.next());
}
public boolean hasNext()
{
return this.iterator.hasNext();
}
};
}
public void forEach(IntProcedure procedure)
{
this.iterable.forEachWith(this.intFunctionToProcedure, 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 IntPredicate predicate)
{
return this.iterable.count(new Predicate<T>()
{
public boolean accept(T each)
{
return predicate.accept(CollectIntIterable.this.function.intValueOf(each));
}
});
}
@Override
public boolean anySatisfy(final IntPredicate predicate)
{
return this.iterable.anySatisfy(new Predicate<T>()
{
public boolean accept(T each)
{
return predicate.accept(CollectIntIterable.this.function.intValueOf(each));
}
});
}
@Override
public boolean allSatisfy(final IntPredicate predicate)
{
return this.iterable.allSatisfy(new Predicate<T>()
{
public boolean accept(T each)
{
return predicate.accept(CollectIntIterable.this.function.intValueOf(each));
}
});
}
@Override
public boolean noneSatisfy(final IntPredicate predicate)
{
return this.iterable.allSatisfy(new Predicate<T>()
{
public boolean accept(T each)
{
return !predicate.accept(CollectIntIterable.this.function.intValueOf(each));
}
});
}
@Override
public int[] toArray()
{
final int[] array = new int[this.size()];
this.iterable.forEachWithIndex(new ObjectIntProcedure<T>()
{
public void value(T each, int index)
{
array[index] = CollectIntIterable.this.function.intValueOf(each);
}
});
return array;
}
@Override
public int[] toSortedArray()
{
int[] array = this.toArray();
Arrays.sort(array);
return array;
}
@Override
public MutableIntList toList()
{
return IntArrayList.newList(this);
}
@Override
public MutableIntList toSortedList()
{
return IntArrayList.newList(this).sortThis();
}
@Override
public MutableIntSet toSet()
{
return IntHashSet.newSet(this);
}
@Override
public MutableIntBag toBag()
{
return IntHashBag.newBag(this);
}
@Override
public boolean containsAll(int... source)
{
for (int value : source)
{
if (!this.contains(value))
{
return false;
}
}
return true;
}
@Override
public boolean containsAll(IntIterable source)
{
for (IntIterator iterator = source.intIterator(); iterator.hasNext(); )
{
if (!this.contains(iterator.next()))
{
return false;
}
}
return true;
}
private final class IntFunctionToProcedure implements Procedure2<T, IntProcedure>
{
private static final long serialVersionUID = -4133872659735979655L;
public void value(T each, IntProcedure parm)
{
parm.value(CollectIntIterable.this.function.intValueOf(each));
}
}
}