SimpleJavaEngine/src/main/java/speiger/src/coreengine/utils/collections/pools/SimplePool.java

76 lines
1.6 KiB
Java

package speiger.src.coreengine.utils.collections.pools;
import java.util.Collection;
import java.util.Iterator;
import java.util.function.Consumer;
import java.util.function.Supplier;
import speiger.src.collections.objects.lists.ObjectArrayList;
import speiger.src.collections.objects.lists.ObjectList;
import speiger.src.coreengine.utils.functions.Functions;
public class SimplePool<T> implements IPool<T>
{
int cap;
ObjectList<T> stack;
Supplier<T> creator;
Consumer<T> acceptor;
public SimplePool(int size, Supplier<T> creator)
{
this(size, creator, Functions.getVoidConsumer());
}
public SimplePool(int size, Supplier<T> creator, Consumer<T> acceptor)
{
cap = size;
stack = new ObjectArrayList<T>(size);
this.creator = creator;
this.acceptor = acceptor;
}
@Override
public void accept(T t)
{
if(stack.size() < cap)
{
stack.add(t);
acceptor.accept(t);
}
}
@Override
public T get()
{
return stack.isEmpty() ? creator.get() : stack.remove(stack.size() - 1);
}
@Override
public T[] get(T[] input)
{
for(int i = 0,m=input.length;i<m;i++)
{
input[i] = stack.isEmpty() ? creator.get() : stack.remove(stack.size() - 1);
}
return input;
}
@Override
public void accept(T[] array)
{
stack.addAll(array, 0, Math.min(array.length, cap - stack.size()));
for(int i = 0,m=Math.min(array.length, cap - stack.size());i<m;acceptor.accept(array[i++]));
}
@Override
public void accept(Collection<T> values)
{
Iterator<T> iter = values.iterator();
for(int i = 0,m=Math.min(values.size(), cap - stack.size());i<m && iter.hasNext();i++)
{
T next = iter.next();
stack.add(next);
acceptor.accept(next);
}
}
}