package net.fortytwo.ripple.libs.graph;
import net.fortytwo.flow.Sink;
import net.fortytwo.ripple.RippleException;
import net.fortytwo.ripple.model.ModelConnection;
import net.fortytwo.ripple.model.PrimitiveStackMapping;
import net.fortytwo.ripple.model.RippleList;
import net.fortytwo.ripple.util.ModelConnectionHelper;
/**
* A primitive which produces a new blank node.
*
* @author Joshua Shinavier (http://fortytwo.net)
*/
public class New extends PrimitiveStackMapping {
private static final String[] IDENTIFIERS = {
GraphLibrary.NS_2013_03 + "new",
GraphLibrary.NS_2008_08 + "new",
GraphLibrary.NS_2007_08 + "new",
GraphLibrary.NS_2007_05 + "new"};
public String[] getIdentifiers() {
return IDENTIFIERS;
}
public New()
throws RippleException {
super();
}
public Parameter[] getParameters() {
return new Parameter[]{};
}
public String getComment() {
return "n -- where n is a new blank node";
}
public void apply(final RippleList arg,
final Sink<RippleList> solutions,
final ModelConnection mc) throws RippleException {
RippleList stack = arg;
// Note: stack may be null (and this should not be a problem).
RippleList result = stack.push(
new ModelConnectionHelper(mc).createRandomURI());
//System.out.println( "Creating a new node" );
solutions.put(result);
}
}