Java.util.logging. SetLevel has no effect on a custom Handler

Question

in the following code example the handler does not repect the call to setLevel.

Logger globalLogger = Logger.getLogger("");

Handler handler = new LogMailHandler();

handler.setLevel(Level.SEVERE);

globalLogger.addHandler(handler);

Logger local = Logger.getLogger(LogMailHandlerTest.class.getName());

local.severe("Test message severe...");
local.info("Test message info...");

LogMailHandler is defined as follows:

public class LogMailHandler extends Handler {
    @Override
    public void publish(LogRecord pRecord) {
        System.out.println("Error registered..." + pRecord.getLevel().getName());
    }

    @Override
    public void flush() {
    }

    @Override
    public void close() throws SecurityException {
    }

}

The output is:

Jan 19, 2015 5:20:33 PM com.idmedia.fts.exchange.helper.LogMailHandlerTest main
SEVERE: Test message severe...
Error registered...SEVERE
Jan 19, 2015 5:20:33 PM com.idmedia.fts.exchange.helper.LogMailHandlerTest main
INFO: Test message info...
Error registered...INFO

In my opinion the "Error registered...INFO" should not be there since the level of the handler was set to SEVERE.

Any suggestions?

Bruno Marco Visioli · Accepted Answer · 2015-01-19 17:01:02Z

1

You must test the LogRecord on publish method with boolean isLoggable(LogRecord) before printing on console. This method tests, among other things, if the LogRecord level is higher that the minimum (in your case SEVERE)

answered Jan 19, 2015 at 17:01

Bruno Marco Visioli

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