| /* |
| * 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.uima.fit.util; |
| |
| import java.util.logging.Handler; |
| import java.util.logging.Level; |
| import java.util.logging.LogRecord; |
| import java.util.logging.Logger; |
| |
| import junit.framework.Assert; |
| |
| import org.apache.uima.fit.testing.util.DisableLogging; |
| import org.junit.Test; |
| |
| /** |
| */ |
| public class DisableLoggingTest { |
| |
| @Test |
| public void test() { |
| // get the top logger and remove all handlers |
| Logger topLogger = Logger.getLogger(""); |
| Handler[] handlers = topLogger.getHandlers(); |
| for (Handler handler : handlers) { |
| topLogger.removeHandler(handler); |
| } |
| |
| // add a single hander that writes to a string buffer |
| final StringBuffer buffer = new StringBuffer(); |
| Handler bufferhandler = new Handler() { |
| @Override |
| public void close() throws SecurityException {/* do nothing */ |
| } |
| |
| @Override |
| public void flush() {/* do nothing */ |
| } |
| |
| @Override |
| public void publish(LogRecord record) { |
| buffer.append(record.getMessage()); |
| } |
| }; |
| topLogger.addHandler(bufferhandler); |
| |
| // log to the buffer |
| Logger.getLogger("foo").info("Hello!"); |
| Assert.assertEquals("Hello!", buffer.toString()); |
| |
| // disable logging, and make sure nothing is written to the buffer |
| buffer.setLength(0); |
| Level level = DisableLogging.disableLogging(); |
| Logger.getLogger("bar").info("Hello!"); |
| Assert.assertEquals("", buffer.toString()); |
| |
| // enable logging, and make sure things are written to the buffer |
| DisableLogging.enableLogging(level); |
| Logger.getLogger("baz").info("Hello!"); |
| Assert.assertEquals("Hello!", buffer.toString()); |
| |
| // try disabling logging with a logger that has its own handler |
| buffer.setLength(0); |
| Logger logger = Logger.getLogger("foo.bar.baz"); |
| logger.addHandler(new Handler() { |
| @Override |
| public void close() throws SecurityException {/* do nothing */ |
| } |
| |
| @Override |
| public void flush() { /* do nothing */ |
| } |
| |
| @Override |
| public void publish(LogRecord record) { |
| buffer.append("Not disabled!"); |
| } |
| }); |
| level = DisableLogging.disableLogging(); |
| logger.info("Hello!"); |
| Assert.assertEquals("", buffer.toString()); |
| DisableLogging.enableLogging(level); |
| |
| // restore the original handlers |
| topLogger.removeHandler(bufferhandler); |
| for (Handler handler : handlers) { |
| topLogger.addHandler(handler); |
| } |
| |
| } |
| } |