private synchronized PolicyResult constructResultWrapper(final ResultType resultType) {
return new PolicyResult(
resultType,
validationsPerformed.get(),
lastTotalCharsValidated.get(),
streamer.getStreamingMode());
}
@Override
synchronized PolicyResult validate() {
streamer.stream(); // todo: better get a read-lock on streamer
ResultType resultType = ResultType.VALID;
if (!streamer.getMemoryBuffer().isEmpty()) {
validationsPerformed.incrementAndGet();
for (Iterator<Character> iter = streamer.getMemoryBuffer().iterator(); iter.hasNext(); ) {
char c = iter.next();
lastTotalCharsValidated.incrementAndGet();
try {
switch (c) {
case Braces.START_PAREN:
case Braces.START_BRACE:
case Braces.START_SQBRACE:
stack.add(c);
break;
case Braces.END_PAREN:
if (stack.pop() != Braces.START_PAREN) {
return constructResultWrapper(ResultType.INVALID);
}
break;
case Braces.END_BRACE:
if (stack.pop() != Braces.START_BRACE) {
return constructResultWrapper(ResultType.INVALID);
}
break;
case Braces.END_SQBRACE:
if (stack.pop() != Braces.START_SQBRACE) {
return constructResultWrapper(ResultType.INVALID);
}
break;
}
} catch (EmptyStackException emptyStack) {
return constructResultWrapper(ResultType.INVALID);
}
}
if (!stack.isEmpty()) {
resultType = ResultType.INVALID;
}
}
return constructResultWrapper(resultType);
}
public void stopNow() {
streamer.stop();
}
public Result validateNow() {
return streamer.validate();
}
