/*
* Licensed to the Apache Software Foundation (ASF) under one or more
* contributor license agreements. See the NOTICE file distributed with
* this work for additional information regarding copyright ownership.
* The ASF licenses this file to You under the Apache license, Version 2.0
* (the "License"); you may not use this file except in compliance with
* the License. You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the license for the specific language governing permissions and
* limitations under the license.
*/
package org.apache.logging.slf4j;
import ch.qos.logback.classic.spi.ILoggingEvent;
import ch.qos.logback.core.spi.AppenderAttachable;
import ch.qos.logback.core.testUtil.StringListAppender;
import org.slf4j.Logger;
/**
* Utility methods for unit tests integrating with Logback.
*
* @since 2.1
*/
public final class TestUtil {
public static StringListAppender<ILoggingEvent> getListAppender(final SLF4JLogger slf4jLogger, final String name) {
final Logger logger = slf4jLogger.getLogger();
if (!(logger instanceof AppenderAttachable)) {
throw new AssertionError("SLF4JLogger.getLogger() did not return an instance of AppenderAttachable");
}
@SuppressWarnings("unchecked")
final AppenderAttachable<ILoggingEvent> attachable = (AppenderAttachable<ILoggingEvent>) logger;
return getListAppender(attachable, name);
}
public static StringListAppender<ILoggingEvent> getListAppender(final AppenderAttachable<ILoggingEvent> logger, final String name) {
return (StringListAppender<ILoggingEvent>) logger.getAppender(name);
}
private TestUtil() {
}
}