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| <!-- vim: set syn=markdown : --> |
| <!-- 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 |
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| http://www.apache.org/licenses/LICENSE-2.0 |
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| 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. --><h1>Log4j to SLF4J Adapter</h1> |
| <p>The Log4j 2 to SLF4J Adapter allows applications coded to the Log4j 2 API to be routed to SLF4J. Use of this adapter may cause some loss of performance as the Log4j 2 Messages must be formatted before they can be passed to SLF4J. With Log4j 2 as the implementation these would normally be formatted only when they are accessed by a Filter or Appender.</p> |
| <div class="section"> |
| <h2><a name="Requirements"></a>Requirements</h2> |
| <p>The Log4j 2 to SLF4J adapter is dependent on the Log4j 2 API and the SLF4J API. For more information, see <a href="../runtime-dependencies.html">Runtime Dependencies</a>.</p></div> |
| <div class="section"> |
| <h2><a name="Usage"></a>Usage</h2> |
| <p>Include this jar, the SLF4J jar(s) and an SLF4J logging implementation jar together. Configure the logging implementation as required.</p> |
| |
| <div class="alert alert-danger"> |
| Use of the SLF4J adapter (log4j-to-slf4j-2.x.jar) together with |
| the SLF4J bridge (log4j-slf4j-impl-2.x.jar) should |
| never be attempted as it will cause events to endlessly be routed between |
| SLF4J and Log4j 2. |
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