Fix ShellBolt log level

[mstrucken]

What is the purpose of the change

ShellBolt log level is always INFO due to failed check against Long after deseralizing

How was the change tested

I used the following minimal example:

String json = "{\"command\": \"log\", \"msg\": \"Testing ...\", \"level\": 4}";

try {
    JSONObject msg = (JSONObject) JSONValue.parseWithException(json);

    ShellMsg shellMsg = new ShellMsg();
    String command = (String)msg.get("command");
    if (command.equals("log")) {
        Object logLevelObj = msg.get("level");
        if (logLevelObj != null && logLevelObj instanceof Number) {
            int logLevel = ((Number) logLevelObj).intValue();
            shellMsg.setLogLevel(logLevel);
        }
    }
} catch (ParseException e) {
    throw new RuntimeException(e);
}

[mstrucken]

Fixes #7954

[rzo1]

Thanks for the PR - very much appreciated! This is a regression from the switch to another json impl in the last year.

[mstrucken]

Thanks for the PR - very much appreciated! This is a regression from the switch to another json impl in the last year.

A colleague told me that it was introduced with 2.6.0, but I haven't found the exact commit.

[rzo1]

@mstrucken Most likely: STORM-3961 :)

[reiabreu]

Thanks for a detailed issue and PR!