aQute.bnd.stream.AbstractWhile Maven / Gradle / Ivy

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package aQute.bnd.stream;

import static java.util.Objects.requireNonNull;

import java.util.Comparator;
import java.util.Spliterator;
import java.util.function.Consumer;
import java.util.function.Predicate;

abstract class AbstractWhile implements Spliterator, Consumer {
	final Spliterator		spliterator;
	final Predicate	predicate;
	T							item;

	AbstractWhile(Spliterator spliterator, Predicate predicate) {
		this.spliterator = requireNonNull(spliterator);
		this.predicate = requireNonNull(predicate);
	}

	@Override
	public Spliterator trySplit() {
		return null;
	}

	@Override
	public long estimateSize() {
		return spliterator.estimateSize();
	}

	@Override
	public long getExactSizeIfKnown() {
		return -1L;
	}

	@Override
	public int characteristics() {
		return spliterator.characteristics() & ~(Spliterator.SIZED | Spliterator.SUBSIZED);
	}

	@Override
	public Comparator getComparator() {
		return spliterator.getComparator();
	}

	@Override
	public void accept(T item) {
		this.item = item;
	}
}