--- /dev/null
+<?xml version="1.0" encoding="UTF-8" ?>
+<!--
+ 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.
+-->
+
+<!-- Authors: Chris Taylor, Ceki Gulcu. -->
+
+<!-- Version: 1.2 -->
+
+<!-- A configuration element consists of optional renderer
+elements,appender elements, categories and an optional root
+element. -->
+
+<!ELEMENT log4j:configuration (renderer*, appender*,plugin*, (category|logger)*,root?,
+ (categoryFactory|loggerFactory)?)>
+
+<!-- The "threshold" attribute takes a level value below which -->
+<!-- all logging statements are disabled. -->
+
+<!-- Setting the "debug" enable the printing of internal log4j logging -->
+<!-- statements. -->
+
+<!-- By default, debug attribute is "null", meaning that we not do touch -->
+<!-- internal log4j logging settings. The "null" value for the threshold -->
+<!-- attribute can be misleading. The threshold field of a repository -->
+<!-- cannot be set to null. The "null" value for the threshold attribute -->
+<!-- simply means don't touch the threshold field, the threshold field -->
+<!-- keeps its old value. -->
+
+<!ATTLIST log4j:configuration
+ xmlns:log4j CDATA #FIXED "http://jakarta.apache.org/log4j/"
+ threshold (all|trace|debug|info|warn|error|fatal|off|null) "null"
+ debug (true|false|null) "null"
+ reset (true|false) "false"
+>
+
+<!-- renderer elements allow the user to customize the conversion of -->
+<!-- message objects to String. -->
+
+<!ELEMENT renderer EMPTY>
+<!ATTLIST renderer
+ renderedClass CDATA #REQUIRED
+ renderingClass CDATA #REQUIRED
+>
+
+<!-- Appenders must have a name and a class. -->
+<!-- Appenders may contain an error handler, a layout, optional parameters -->
+<!-- and filters. They may also reference (or include) other appenders. -->
+<!ELEMENT appender (errorHandler?, param*,
+ rollingPolicy?, triggeringPolicy?, connectionSource?,
+ layout?, filter*, appender-ref*)>
+<!ATTLIST appender
+ name CDATA #REQUIRED
+ class CDATA #REQUIRED
+>
+
+<!ELEMENT layout (param*)>
+<!ATTLIST layout
+ class CDATA #REQUIRED
+>
+
+<!ELEMENT filter (param*)>
+<!ATTLIST filter
+ class CDATA #REQUIRED
+>
+
+<!-- ErrorHandlers can be of any class. They can admit any number of -->
+<!-- parameters. -->
+
+<!ELEMENT errorHandler (param*, root-ref?, logger-ref*, appender-ref?)>
+<!ATTLIST errorHandler
+ class CDATA #REQUIRED
+>
+
+<!ELEMENT root-ref EMPTY>
+
+<!ELEMENT logger-ref EMPTY>
+<!ATTLIST logger-ref
+ ref CDATA #REQUIRED
+>
+
+<!ELEMENT param EMPTY>
+<!ATTLIST param
+ name CDATA #REQUIRED
+ value CDATA #REQUIRED
+>
+
+
+<!-- The priority class is org.apache.log4j.Level by default -->
+<!ELEMENT priority (param*)>
+<!ATTLIST priority
+ class CDATA #IMPLIED
+ value CDATA #REQUIRED
+>
+
+<!-- The level class is org.apache.log4j.Level by default -->
+<!ELEMENT level (param*)>
+<!ATTLIST level
+ class CDATA #IMPLIED
+ value CDATA #REQUIRED
+>
+
+
+<!-- If no level element is specified, then the configurator MUST not -->
+<!-- touch the level of the named category. -->
+<!ELEMENT category (param*,(priority|level)?,appender-ref*)>
+<!ATTLIST category
+ class CDATA #IMPLIED
+ name CDATA #REQUIRED
+ additivity (true|false) "true"
+>
+
+<!-- If no level element is specified, then the configurator MUST not -->
+<!-- touch the level of the named logger. -->
+<!ELEMENT logger (level?,appender-ref*)>
+<!ATTLIST logger
+ name CDATA #REQUIRED
+ additivity (true|false) "true"
+>
+
+
+<!ELEMENT categoryFactory (param*)>
+<!ATTLIST categoryFactory
+ class CDATA #REQUIRED>
+
+<!ELEMENT loggerFactory (param*)>
+<!ATTLIST loggerFactory
+ class CDATA #REQUIRED>
+
+<!ELEMENT appender-ref EMPTY>
+<!ATTLIST appender-ref
+ ref CDATA #REQUIRED
+>
+
+<!-- plugins must have a name and class and can have optional parameters -->
+<!ELEMENT plugin (param*, connectionSource?)>
+<!ATTLIST plugin
+ name CDATA #REQUIRED
+ class CDATA #REQUIRED
+>
+
+<!ELEMENT connectionSource (dataSource?, param*)>
+<!ATTLIST connectionSource
+ class CDATA #REQUIRED
+>
+
+<!ELEMENT dataSource (param*)>
+<!ATTLIST dataSource
+ class CDATA #REQUIRED
+>
+
+<!ELEMENT triggeringPolicy ((param|filter)*)>
+<!ATTLIST triggeringPolicy
+ name CDATA #IMPLIED
+ class CDATA #REQUIRED
+>
+
+<!ELEMENT rollingPolicy (param*)>
+<!ATTLIST rollingPolicy
+ name CDATA #IMPLIED
+ class CDATA #REQUIRED
+>
+
+
+<!-- If no priority element is specified, then the configurator MUST not -->
+<!-- touch the priority of root. -->
+<!-- The root category always exists and cannot be subclassed. -->
+<!ELEMENT root (param*, (priority|level)?, appender-ref*)>
+
+
+<!-- ==================================================================== -->
+<!-- A logging event -->
+<!-- ==================================================================== -->
+<!ELEMENT log4j:eventSet (log4j:event*)>
+<!ATTLIST log4j:eventSet
+ xmlns:log4j CDATA #FIXED "http://jakarta.apache.org/log4j/"
+ version (1.1|1.2) "1.2"
+ includesLocationInfo (true|false) "true"
+>
+
+
+
+<!ELEMENT log4j:event (log4j:message, log4j:NDC?, log4j:throwable?,
+ log4j:locationInfo?, log4j:properties?) >
+
+<!-- The timestamp initiationServiceType is application dependent. -->
+<!ATTLIST log4j:event
+ logger CDATA #REQUIRED
+ level CDATA #REQUIRED
+ thread CDATA #REQUIRED
+ timestamp CDATA #REQUIRED
+ time CDATA #IMPLIED
+>
+
+<!ELEMENT log4j:message (#PCDATA)>
+<!ELEMENT log4j:NDC (#PCDATA)>
+
+<!ELEMENT log4j:throwable (#PCDATA)>
+
+<!ELEMENT log4j:locationInfo EMPTY>
+<!ATTLIST log4j:locationInfo
+ class CDATA #REQUIRED
+ method CDATA #REQUIRED
+ file CDATA #REQUIRED
+ line CDATA #REQUIRED
+>
+
+<!ELEMENT log4j:properties (log4j:data*)>
+
+<!ELEMENT log4j:data EMPTY>
+<!ATTLIST log4j:data
+ name CDATA #REQUIRED
+ value CDATA #REQUIRED
+>