[LOG4J2-2535] MongoDB3 configuration requires databaseName when using connectionFactory

• Type: Bug
• Status: Open
• Priority: Major
• Resolution: Unresolved
• Affects Version/s: 2.11.1
• Component/s: Appenders, MongoDB
• Assignee: Unassigned
• Reporter: Alex Donate
• Created: 21/Jan/19 02:48
• Updated: 21/Jan/19 02:48

Description

When creating a configuration for MongoDB3, using a connection factory , it still requires to provide a database name as an argument

log4j2.xml configuration file

 

<NoSql name="databaseAppender">
<MongoDb3 collectionName="applicationLog" factoryClassName="logger.ConnectionFactory"
factoryMethodName="getNewMongoClient" />
</NoSql>

 

Error while running

2019-01-20 21:37:20,355 main ERROR Could not create plugin of type class org.apache.logging.log4j.mongodb3.MongoDbProvider for element MongoDb3 org.apache.logging.log4j.core.config.ConfigurationException: Arguments given for element MongoDb3 are invalid: field 'databaseName' has invalid value 'null'
at org.apache.logging.log4j.core.config.plugins.util.PluginBuilder.injectFields(PluginBuilder.java:209)
at org.apache.logging.log4j.core.config.plugins.util.PluginBuilder.build(PluginBuilder.java:122)

 

Per the documentation , it makes is sound is optional and not required.

By looking at the log4j2 code, it seems the argument is tagged with @Required Annotation

 

org.apache.logging.log4j.mongodb3.MongoDbProvider

@PluginBuilderAttribute
@Required(message = "No database name provided")
private String databaseName;