@Override
public ResultValue<Integer> eval(AutomatonExpressionArguments pArgs) {
if (TRANSITION_VARS_PATTERN.matcher(varId).matches()) { // $1 AutomatonTransitionVariables
// no exception here (would have come in the constructor)
int key = Integer.parseInt(varId.substring(1));
String val = pArgs.getTransitionVariable(key);
if (val == null) {
pArgs
.getLogger()
.log(Level.WARNING, "could not find the transition variable $" + key + ".");
return new ResultValue<>(
"could not find the transition variable $" + key + ".", "AutomatonIntExpr.VarAccess");
}
try {
int value = Integer.parseInt(val);
return new ResultValue<>(Integer.valueOf(value));
} catch (NumberFormatException e) {
pArgs
.getLogger()
.log(
Level.WARNING,
"could not parse the contents of transition variable $"
+ key
+ "=\""
+ val
+ "\".");
return new ResultValue<>(
"could not parse the contents of transition variable $" + key + "=\"" + val + "\".",
"AutomatonIntExpr.VarAccess");
}
} else if (varId.equals("$line")) { // $line line number in sourcecode
return new ResultValue<>(Integer.valueOf(pArgs.getCfaEdge().getLineNumber()));
} else {
AutomatonVariable variable = pArgs.getAutomatonVariables().get(varId);
if (variable != null) {
return new ResultValue<>(Integer.valueOf(variable.getValue()));
} else {
pArgs
.getLogger()
.log(Level.WARNING, "could not find the automaton variable " + varId + ".");
return new ResultValue<>(
"could not find the automaton variable " + varId + ".", "AutomatonIntExpr.VarAccess");
}
}
}
@Override
public ResultValue<Integer> eval(AutomatonExpressionArguments pArgs) {
// replace transition variables
String modifiedQueryString = pArgs.replaceVariables(queryString);
if (modifiedQueryString == null) {
return new ResultValue<>(
"Failed to modify queryString \"" + queryString + "\"", "AutomatonIntExpr.CPAQuery");
}
for (AbstractState ae : pArgs.getAbstractStates()) {
if (ae instanceof AbstractQueryableState) {
AbstractQueryableState aqe = (AbstractQueryableState) ae;
if (aqe.getCPAName().equals(cpaName)) {
try {
Object result = aqe.evaluateProperty(modifiedQueryString);
if (result instanceof NumericValue) {
result = ((NumericValue) result).getNumber();
}
if (result instanceof Integer) {
String message =
"CPA-Check succeeded: ModifiedCheckString: \""
+ modifiedQueryString
+ "\" CPAElement: ("
+ aqe.getCPAName()
+ ") \""
+ aqe.toString()
+ "\"";
pArgs.getLogger().log(Level.FINER, message);
return new ResultValue<>((Integer) result);
} else if (result instanceof Long) {
String message =
"CPA-Check succeeded: ModifiedCheckString: \""
+ modifiedQueryString
+ "\" CPAElement: ("
+ aqe.getCPAName()
+ ") \""
+ aqe.toString()
+ "\"";
pArgs.getLogger().log(Level.FINER, message);
return new ResultValue<>(((Long) result).intValue());
} else {
pArgs
.getLogger()
.log(
Level.WARNING,
"Automaton got a non-Numeric value during Query of the "
+ cpaName
+ " CPA on Edge "
+ pArgs.getCfaEdge().getDescription()
+ ".");
return new ResultValue<>(
"Automaton got a non-Numeric value during Query of the "
+ cpaName
+ " CPA on Edge "
+ pArgs.getCfaEdge().getDescription()
+ ".",
"AutomatonIntExpr.CPAQuery");
}
} catch (InvalidQueryException e) {
pArgs
.getLogger()
.logException(
Level.WARNING,
e,
"Automaton encountered an Exception during Query of the "
+ cpaName
+ " CPA on Edge "
+ pArgs.getCfaEdge().getDescription()
+ ".");
return new ResultValue<>(
"Automaton encountered an Exception during Query of the "
+ cpaName
+ " CPA on Edge "
+ pArgs.getCfaEdge().getDescription()
+ ".",
"AutomatonIntExpr.CPAQuery");
}
}
}
}
pArgs
.getLogger()
.log(
Level.WARNING,
"Did not find the CPA to be queried "
+ cpaName
+ " CPA on Edge "
+ pArgs.getCfaEdge().getDescription()
+ ".");
return new ResultValue<>(
"Did not find the CPA to be queried "
+ cpaName
+ " CPA on Edge "
+ pArgs.getCfaEdge().getDescription()
+ ".",
"AutomatonIntExpr.CPAQuery");
}
