package eu.dnetlib.manager.wf.nodes.stream;

import java.util.stream.Stream;

import eu.dnetlib.manager.wf.annotations.WfInputParam;
import eu.dnetlib.manager.wf.annotations.WfOutputParam;
import eu.dnetlib.manager.wf.nodes.AbstractJobNode;

public abstract class StreamMapperNode<T, K> extends AbstractJobNode {

	@WfInputParam
	private Stream<T> inputStream;

	@WfOutputParam
	private Stream<K> outputStream;

	public StreamMapperNode() {
		super(false);
	}

	abstract protected Stream<K> mapStream(Stream<T> input);

	@Override
	protected void execute() {
		outputStream = mapStream(inputStream);
	}

}