jdbc-tracer

jdbc-tracer is a JDBC driver, which provides hook points to trace all queries.

Use cases

• Record all statements executed by JDBC driver
• Detect heavy queries in development environment.
  • Send EXPLAIN statement
• Logging queries and parameters.
• Detect webapp controller, that sends too much SQL queries.

Listeners

You need to implement PreparedStatementListener or ResultSetListener.

PreparedStatementListener

You can get following values for each executed queries:

• connection
• elapsed time
• SQL statement
• binded variables

ResultSetListener

You can get following values for each got rows:

• isFirstRow
  • You may print column information on first row.
• resultSet
  • you can get resultset information!
    • (MUST NOT call next() from the listener. it cause infinite loop)

Configuration

JDBC url with result set listener:

jdbc:tracer:rs=me.geso.me.geso.jdbctracer.IntegrationTest$RSListener:h2:mem:test

JDBC url with prepared statement listener:

jdbc:tracer:ps=me.geso.me.geso.jdbctracer.IntegrationTest$PSListener:h2:mem:test

Install

You can install this library from maven central.

License

The MIT License (MIT)
Copyright © 2016 Tokuhiro Matsuno, http://64p.org/ <tokuhirom@gmail.com>

Permission is hereby granted, free of charge, to any person obtaining a copy
of this software and associated documentation files (the “Software”), to deal
in the Software without restriction, including without limitation the rights
to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
copies of the Software, and to permit persons to whom the Software is
furnished to do so, subject to the following conditions:

The above copyright notice and this permission notice shall be included in
all copies or substantial portions of the Software.

THE SOFTWARE IS PROVIDED “AS IS”, WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
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OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
THE SOFTWARE.