Examples with StreamHandler java.util.logging.StreamHandler used on opensource projects

Example 51 with StreamHandler

use of java.util.logging.StreamHandler in project neo4j by neo4j.

the class SuppressOutput method java_util_logging.

private static Suppressible java_util_logging(final ByteArrayOutputStream redirectTo, Level level) {
    final Handler replacement = redirectTo == null ? null : new StreamHandler(redirectTo, new SimpleFormatter());
    if (replacement != null && level != null) {
        replacement.setLevel(level);
    }
    return new Suppressible() {

        @Override
        public Voice suppress() {
            final Logger logger = LogManager.getLogManager().getLogger("");
            final Level level = logger.getLevel();
            final Handler[] handlers = logger.getHandlers();
            for (Handler handler : handlers) {
                logger.removeHandler(handler);
            }
            if (replacement != null) {
                logger.addHandler(replacement);
                logger.setLevel(Level.ALL);
            }
            return new Voice(this, redirectTo) {

                @Override
                void restore(boolean failure) {
                    for (Handler handler : handlers) {
                        logger.addHandler(handler);
                    }
                    logger.setLevel(level);
                    if (replacement != null) {
                        logger.removeHandler(replacement);
                    }
                }
            };
        }
    };
}