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1   /*
2    * Licensed to the Apache Software Foundation (ASF) under one or more
3    * contributor license agreements. See the NOTICE file distributed with
4    * this work for additional information regarding copyright ownership.
5    * The ASF licenses this file to You under the Apache license, Version 2.0
6    * (the "License"); you may not use this file except in compliance with
7    * the License. You may obtain a copy of the License at
8    *
9    *      http://www.apache.org/licenses/LICENSE-2.0
10   *
11   * Unless required by applicable law or agreed to in writing, software
12   * distributed under the License is distributed on an "AS IS" BASIS,
13   * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
14   * See the license for the specific language governing permissions and
15   * limitations under the license.
16   */
17  package org.apache.logging.log4j.core.config;
18  
19  import org.apache.logging.log4j.Level;
20  import org.apache.logging.log4j.core.Appender;
21  import org.apache.logging.log4j.core.Layout;
22  import org.apache.logging.log4j.core.appender.ConsoleAppender;
23  import org.apache.logging.log4j.core.layout.PatternLayout;
24  import org.apache.logging.log4j.util.PropertiesUtil;
25  
26  /**
27   * The default configuration writes all output to the Console using the default logging level. You configure default
28   * logging level by setting the system property "org.apache.logging.log4j.level" to a level name. If you do not
29   * specify the property, Log4J uses the ERROR Level. Log Events will be printed using the basic formatting provided
30   * by each Message.
31   */
32  public class DefaultConfiguration extends BaseConfiguration {
33  
34      /**
35       * The name of the default configuration.
36       */
37      public static final String DEFAULT_NAME = "Default";
38      /**
39       * The System Property used to specify the logging level.
40       */
41      public static final String DEFAULT_LEVEL = "org.apache.logging.log4j.level";
42  
43      /**
44       * Constructor to create the default configuration.
45       */
46      public DefaultConfiguration() {
47  
48          setName(DEFAULT_NAME);
49          final Layout layout = PatternLayout.createLayout("%d{HH:mm:ss.SSS} [%thread] %-5level %logger{36} - %msg%n",
50              null, null, null);
51          final Appender appender = ConsoleAppender.createAppender(layout, null, "SYSTEM_OUT", "Console", "false",
52              "true");
53          appender.start();
54          addAppender(appender);
55          final LoggerConfig root = getRootLogger();
56          root.addAppender(appender, null, null);
57  
58          final String levelName = PropertiesUtil.getProperties().getStringProperty(DEFAULT_LEVEL);
59          final Level level = levelName != null && Level.valueOf(levelName) != null ?
60              Level.valueOf(levelName) : Level.ERROR;
61          root.setLevel(level);
62      }
63  
64      @Override
65      protected void doConfigure() {
66      }
67  }