This paragraph talk about the management of the mapviewer configuration file :
You can manage it on-line in this location:
<!-- ****************************************************************** -->
<!-- ************************ Logging Settings ************************ -->
<!-- ****************************************************************** -->
<!-- Uncomment the following to modify logging. Possible values are:
log_level = "fatal"|"error"|"warn"|"info"|"debug"|"finest"
default: info) ;
log_thread_name = "true" | "false" ;
log_time = "true" | "false" ;
one or more log_output elements.
-->
<logging log_level="warn" log_thread_name="false" log_time="true">
<log_output name="System.err" />
<log_output name="../log/mapviewer.log" />
</logging>
From here : If you see an alert dialog with an error message that reads like “JDBC theme is not supported on this data source”, then you need to add the allow_jdbc_theme_based_foi=“true” attribute to the 'mvdemo' data source definition in the MapViewer's mapViewerConfig.xml config file (can be done from the MapViewer admin web console under Management then Confgiuration), then restart MapViewer.
<map_data_source name="world_sample"
jdbc_host="YOUR_DB_HOSTNAME"
jdbc_sid="YOUR_DB_SID"
jdbc_port="YOUR_DB_PORT"
jdbc_user="YOUR_DB_USER_WHERE_WORLD_SAMPLE_IS_LOADED"
jdbc_password="!DBUSER_PASSWD"
jdbc_mode="thin"
number_of_mappers="2"
allow_jdbc_theme_based_foi="true"
/>
Hint: Here is a completed example of the world_sample data source:
<map_data_source name="world_sample"
jdbc_host="gisserver.oracle.com"
jdbc_sid="orcl"
jdbc_port="1521"
jdbc_user="world_sample"
jdbc_password="!world_sample"
jdbc_mode="thin"
number_of_mappers="2"
allow_jdbc_theme_based_foi="true"
/>
Before you continue, ensure that your jdbc_password has an “!” in front of it, as illustrated in the examples above. Also, ensure that the data source is in an uncommented section of the xml file: text within is considered as comments only.