| /* Copyright 2017, 2018 The Apache Software Foundation |
| * |
| * Licensed 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.xmlbeans.impl.common; |
| |
| /** |
| * A logger class that strives to make it as easy as possible for |
| * developers to write log calls, while simultaneously making those |
| * calls as cheap as possible by performing lazy evaluation of the log |
| * message.<p> |
| */ |
| public class NullLogger extends XBLogger { |
| @Override |
| public void initialize(final String cat) { |
| // do nothing |
| } |
| |
| /** |
| * Log a message |
| * |
| * @param level One of DEBUG, INFO, WARN, ERROR, FATAL |
| * @param obj1 The object to log. |
| */ |
| |
| @Override |
| protected void _log(final int level, final Object obj1) { |
| // do nothing |
| } |
| |
| /** |
| * Log a message |
| * |
| * @param level One of DEBUG, INFO, WARN, ERROR, FATAL |
| * @param obj1 The object to log. This is converted to a string. |
| * @param exception An exception to be logged |
| */ |
| @Override |
| protected void _log(int level, Object obj1, final Throwable exception) { |
| // do nothing |
| } |
| |
| /** |
| * Log a message. Lazily appends Object parameters together. |
| * If the last parameter is a {@link Throwable} it is logged specially. |
| * |
| * @param level One of DEBUG, INFO, WARN, ERROR, FATAL |
| * @param objs the objects to place in the message |
| */ |
| @Override |
| public void log(int level, Object... objs) { |
| // do nothing |
| } |
| |
| |
| /** |
| * Check if a logger is enabled to log at the specified level |
| * |
| * @param level One of DEBUG, INFO, WARN, ERROR, FATAL |
| */ |
| @Override |
| public boolean check(final int level) { |
| return false; |
| } |
| } |
| |
| |
| |
| |
| |