gevaloclexpression.java

UML设计测试工具

/*
 * This is source code of the Snapshot Generator, an extension for USE
 * to generate (valid) system states of UML models.
 * Copyright (C) 2001 Joern Bohling, University of Bremen
 *
 * About USE:
 *   USE - UML based specification environment
 *   Copyright (C) 1999,2000,2001 Mark Richters, University of Bremen
 *
 * This program is free software; you can redistribute it and/or
 * modify it under the terms of the GNU General Public License as
 * published by the Free Software Foundation; either version 2 of the
 * License, or (at your option) any later version.
 *
 * This program 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
 * General Public License for more details.
 *
 * You should have received a copy of the GNU General Public License
 * along with this program; if not, write to the Free Software
 * Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
 */

/**
 * March 22th 2001 
 * @author  Joern Bohling
 */

package org.tzi.use.gen.assl.dynamics;

import org.tzi.use.gen.assl.statics.GOCLExpression;
import org.tzi.use.uml.ocl.value.Value;

import org.tzi.use.uml.ocl.expr.MultiplicityViolationException;

class GEvalOCLExpression extends GEvalInstruction {
    private GOCLExpression fInstr;

    public GEvalOCLExpression(GOCLExpression instr ) {
        fInstr = instr;
    }
    
    public void eval(GConfiguration conf,
                     IGCaller caller,
                     IGCollector collector) throws GEvaluationException {
        collector.detailPrintWriter().println("evaluating `" + fInstr + "'");
        try { 
            Value val = conf.evalExpression(fInstr.expression());
            collector.detailPrintWriter().println("`"+ fInstr + "' == "+val);
            caller.feedback( conf, val, collector );
        } catch (MultiplicityViolationException e) {
            collector.invalid(e.getMessage());
        }
    }
}