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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 java.io.Serializable;
    20
    21  import org.apache.logging.log4j.Level;
    22  import org.apache.logging.log4j.core.Appender;
    23  import org.apache.logging.log4j.core.Layout;
    24  import org.apache.logging.log4j.core.appender.ConsoleAppender;
    25  import org.apache.logging.log4j.core.layout.PatternLayout;
    26  import org.apache.logging.log4j.util.PropertiesUtil;
    27
    28  /**
    29   * The default configuration writes all output to the Console using the default logging level. You configure default
    30   * logging level by setting the system property "org.apache.logging.log4j.level" to a level name. If you do not
    31   * specify the property, Log4j uses the ERROR Level. Log Events will be printed using the basic formatting provided
    32   * by each Message.
    33   */
    34  public class DefaultConfiguration extends AbstractConfiguration {
    35
    36      private static final long serialVersionUID = 1L;
    37
    38      /**
    39       * The name of the default configuration.
    40       */
    41      public static final String DEFAULT_NAME = "Default";
    42      /**
    43       * The System Property used to specify the logging level.
    44       */
    45      public static final String DEFAULT_LEVEL = "org.apache.logging.log4j.level";
    46      /**
    47       * The default Pattern used for the default Layout.
    48       */
    49      public static final String DEFAULT_PATTERN = "%d{HH:mm:ss.SSS} [%thread] %-5level %logger{36} - %msg%n";
    50
    51      /**
    52       * Constructor to create the default configuration.
    53       */
    54      public DefaultConfiguration() {
    55          super(ConfigurationSource.NULL_SOURCE);
    56
    57          setName(DEFAULT_NAME);
    58          final Layout<? extends Serializable> layout = PatternLayout.newBuilder()
    59              .withPattern(DEFAULT_PATTERN)
    60              .withConfiguration(this)
    61              .build();
    62          final Appender appender = ConsoleAppender.createDefaultAppenderForLayout(layout);
    63          appender.start();
    64          addAppender(appender);
    65          final LoggerConfig root = getRootLogger();
    66          root.addAppender(appender, null, null);
    67
    68          final String levelName = PropertiesUtil.getProperties().getStringProperty(DEFAULT_LEVEL);
    69          final Level level = levelName != null && Level.valueOf(levelName) != null ?
    70              Level.valueOf(levelName) : Level.ERROR;
    71          root.setLevel(level);
    72      }
    73
    74      @Override
    75      protected void doConfigure() {
    76      }
    77  }