Examples with ErrorHandler org.apache.logging.log4j.core.ErrorHandler used on opensource projects

Example 1 with ErrorHandler

use of org.apache.logging.log4j.core.ErrorHandler in project jmeter by apache.

the class TestGuiLogEventAppender method beforeClass.

/*
     * Configure logging with GuiLogEventAppender for root logger, and override the handler of GuiLogEventAppender
     * to see if there's any log4j2 AppenderControl level error (e.g, "Recursive call to appender gui-log-event").
     */
@BeforeClass
public static void beforeClass() {
    ConfigurationBuilder<BuiltConfiguration> builder = ConfigurationBuilderFactory.newConfigurationBuilder();
    builder.setPackages("org.apache.jmeter.gui.logging");
    AppenderComponentBuilder appenderBuilder = builder.newAppender("Stdout", "CONSOLE").addAttribute("target", ConsoleAppender.Target.SYSTEM_OUT);
    appenderBuilder.add(builder.newLayout("PatternLayout").addAttribute("pattern", "%d %p %c{1.}: %m%n"));
    builder.add(appenderBuilder);
    appenderBuilder = builder.newAppender("gui-log-event", "GuiLogEvent");
    appenderBuilder.add(builder.newLayout("PatternLayout").addAttribute("pattern", "%d %p %c{1.}: %m%n"));
    builder.add(appenderBuilder);
    RootLoggerComponentBuilder rootLoggerBuilder = builder.newRootLogger(Level.INFO);
    rootLoggerBuilder.add(builder.newAppenderRef("Stdout")).add(builder.newAppenderRef("gui-log-event"));
    builder.add(rootLoggerBuilder);
    final LoggerContext loggerContext = Configurator.initialize(builder.build());
    final Appender guiLogEventAppender = loggerContext.getRootLogger().getAppenders().get("gui-log-event");
    guiLogEventAppender.stop();
    guiLogEventAppender.setHandler(new ErrorHandler() {

        public void error(String msg) {
            log4j2LevelErrorMessages.add(msg);
        }

        public void error(String msg, Throwable t) {
            log4j2LevelErrorMessages.add(msg + " " + t);
        }

        public void error(String msg, LogEvent event, Throwable t) {
            log4j2LevelErrorMessages.add(msg + " " + t);
        }
    });
    guiLogEventAppender.start();
}