
org.btrplace.btrpsl.constraint.NumberParam Maven / Gradle / Ivy
/*
* Copyright (c) 2014 University Nice Sophia Antipolis
*
* This file is part of btrplace.
* This library is free software; you can redistribute it and/or
* modify it under the terms of the GNU Lesser General Public
* License as published by the Free Software Foundation; either
* version 3 of the License, or (at your option) any later version.
*
* This library is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
* Lesser General Public License for more details.
*
* You should have received a copy of the GNU Lesser General Public License
* along with this program. If not, see .
*/
package org.btrplace.btrpsl.constraint;
import org.btrplace.btrpsl.element.BtrpNumber;
import org.btrplace.btrpsl.element.BtrpOperand;
import org.btrplace.btrpsl.element.IgnorableOperand;
import org.btrplace.btrpsl.tree.BtrPlaceTree;
/**
* A parameter for a constraint that denotes a number.
*
* @author Fabien Hermenier
*/
public class NumberParam extends DefaultConstraintParam {
/**
* Make a new number parameter.
*
* @param n the parameter value
*/
public NumberParam(String n) {
super(n, "number");
}
@Override
public Number transform(SatConstraintBuilder cb, BtrPlaceTree tree, BtrpOperand op) {
if (op == IgnorableOperand.getInstance()) {
throw new UnsupportedOperationException();
}
BtrpNumber n = (BtrpNumber) op;
if (n.isInteger()) {
return n.getIntValue();
}
return n.getDoubleValue();
}
@Override
public boolean isCompatibleWith(BtrPlaceTree t, BtrpOperand o) {
return o == IgnorableOperand.getInstance() || (o.type() == BtrpOperand.Type.number && o.degree() == 0);
}
}
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