weblogic JDBC connection monitoring

Does anyone have a suggestion on how to monitor a JDBC connection (Available connections) and create an alert in nagios or just a way to graph the number of connections.

I have a JDBC connection with 50 max connections and want to monitor how many connection are in use over a period of time.
mw-hostingAsked:
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for_yanCommented:
this is for Weblogic 10 which has better tools to monitor JDBC connections:
http://docs.oracle.com/cd/E15051_01/wls/docs103/jdbc_admin/monitor.html
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for_yanCommented:
I guess this is the useful table if you want to determine
the number of active connections in the pool programmatically:

http://docs.oracle.com/cd/E13222_01/wls/docs100/ConsoleHelp/pagehelp/JDBCjdbcdatasourcesjdbcdatasourcemonitorstatisticstitle.html
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for_yanCommented:
check also this with some commands examples:

Monitoring JDBC Datasource Runtime Attributes using Weblogic Scripting Tool:

http://weblogic-wonders.com/weblogic/2011/01/15/monitoring-jdbc-datasource-runtime-attributes-using-wlst/
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Sharon SethCommented:
You should be able to navigate to Services --> JDBC -->DataSources and monitor the connection pool for that JDBC

Also , it is useful to enable connection leak reporting . This way , connection leaks , if any , will be reported in the logs
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