I am trying to configure Logback programmatically to write logs into an OutputStream.

The following libraries are in my classpath:

* logback-core-1.0.6.jar

* logback-classic-1.0.6.jar

* slf4j-api-1.6.4.jar

In fact, I _do_ get the logs in the console, which tells me that Logback has started with the default configuration of outputting to the Console.

What I want, however, is to programmatically add an appender to a Logger, so that it also outputs to an OutputStream.

The following snippet shows what I am doing, and the result is only writing logs to the Console:

Any ideas what I'm doing wrong?

private static ByteArrayOutputStream baos = new ByteArrayOutputStream(100000000);

...

private void method() {

OutputStreamAppender<ILoggingEvent> logbackAppender = new OutputStreamAppender<ILoggingEvent>();

LoggerContext lc = (LoggerContext) LoggerFactory.getILoggerFactory();

PatternLayoutEncoder encoder = new PatternLayoutEncoder();

encoder.setContext(lc);

encoder.setPattern("%-5level [%thread]: %message%n");

logbackAppender.setContext(lc);

logbackAppender.setName("Output stream logback appender");

logbackAppender.setOutputStream(baos);

logbackAppender.setEncoder(encoder);

LOGGER.addAppender(logbackAppender);

LOGGER.debug("This");

LOGGER.info("can't be");

LOGGER.info("happening")

}

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