How to send hibernate connection info to logback - logback

Question

I want to get hibernate conncection info (like driver_class, url, username, password) in logback file. (Not manually)
This belows is my logback file.
<appender name="dbAppender" class="ch.qos.logback.classic.db.DBAppender">
<append>false</append> //unfortunately it does not work.
<connectionSource class="ch.qos.logback.core.db.DriverManagerConnectionSource">
<driverClass>oracle.jdbc.driver.OracleDriver</driverClass>
<url>jdbc:oracle:thin:#localhost:1521:aaa</url>
<user>bbb</user>
<password>ccc</password>
</connectionSource>
</appender>
It works. But I want to get information about connection info(like driver class, url, user, password) from hibernate.cfg.xml automatically in logback.xml.
Your cooperation would be appreciated.
Please Help.
Thanks.

Answer 1

Getting the values out of your hibernate.cfg.xml would probably require writing some code. However, if you externalise all your hibernate properties in a properties file you can import them into your logback configuration.
Hibernate supports using a properties file called hibernate.properties in the root of the classpath, or you could pass an instance of java.util.Properties to Configuration.setProperties() when configuring your session factory.
If you can get your hibernate properties into a properties file you can use it from logback like so:
properties file on the classpath
<configuration>
<property resource="hibernate.properties" />
<appender name="dbAppender" class="ch.qos.logback.classic.db.DBAppender">
<append>false</append> //unfortunately it does not work.
<connectionSource class="ch.qos.logback.core.db.DriverManagerConnectionSource">
<driverClass>${hibernate.connection.driver_class}</driverClass>
<url>${hibernate.connection.url}</url>
<user>${hibernate.connection.username}</user>
<password>${hibernate.connection.password}</password>
</connectionSource>
</appender>
</configuration>
If your properties aren't on the classpath you can use <property file="path/to/some.properties" /> instead.