StringIf.java

package org.batfish.datamodel.assertion;

public class StringIf implements StringExpr {

   private StringExpr _falseExpr;

   private BooleanExpr _guard;

   private StringExpr _trueExpr;

   public StringIf(BooleanExpr guard, StringExpr trueExpr,
         StringExpr falseExpr) {
      _guard = guard;
      _trueExpr = trueExpr;
      _falseExpr = falseExpr;
   }

   @Override
   public String evaluate(Environment env) {
      if (_guard.evaluate(env)) {
         return _trueExpr.evaluate(env);
      }
      else {
         return _falseExpr.evaluate(env);
      }
   }

}