/*
* JaamSim Discrete Event Simulation
* Copyright (C) 2014 Ausenco Engineering Canada Inc.
* Copyright (C) 2016 JaamSim Software Inc.
*
* Licensed under the Apache License, Version 2.0 (the "License");
* you may not use this file except in compliance with the License.
* You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*/
package com.jaamsim.input;
import java.util.ArrayList;
import com.jaamsim.basicsim.Entity;
import com.jaamsim.input.ExpParser.Expression;
public class ExpressionInput extends Input<ExpParser.Expression> {
private Entity thisEnt;
private ExpEvaluator.EntityParseContext parseContext;
public ExpressionInput(String key, String cat, ExpParser.Expression def) {
super(key, cat, def);
}
public void setEntity(Entity ent) {
thisEnt = ent;
}
@Override
public void parse(KeywordIndex kw)
throws InputErrorException {
Input.assertCount(kw, 1);
try {
String expString = kw.getArg(0);
ExpEvaluator.EntityParseContext pc = ExpEvaluator.getParseContext(thisEnt, expString);
Expression exp = ExpParser.parseExpression(pc, expString);
// Save the expression
parseContext = pc;
value = exp;
} catch (ExpError e) {
InputAgent.logStackTrace(e);
throw new InputErrorException(e);
}
}
@Override
public void getValueTokens(ArrayList<String> toks) {
if (value == null) return;
toks.add(parseContext.getUpdatedSource());
}
}