How can I programmatically set the rosconsole verbosity of an object?

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I have a local planner plugin that instantiates a base_local_planner::TrajectoryPlannerROS object and then calls checkTrajectory on it. Specifically, this is the function that gets called eventually: TrajectoryPlanner::checkTrajectory (link to source code)

During execution of my local planner, that function is called a lot in order to evaluate velocity command candidates. As a result, it spams this warning:

ROS_WARN("Invalid Trajectory %f, %f, %f, cost: %f", vx_samp, vy_samp, vtheta_samp, cost);

I know that, from the command line, I can call the set_loggers service of the corresponding node in order to set the logger level to ERROR and thus prevent the spamming.

Is there a way to set the logger level when I instantiate the TrajectoryPlannerROS object in my local planner?

I would like to avoid:

• making a service call (whether programmatic or via the command line)
• forking base_local_planner and changing the ROS_WARN to ROS_DEBUG

The rosconsole wiki page has some relevant info, but it seems overkill for what I want to achieve. (Although I've never used anything but the ROS_* macros, so it may just be lack of familiarity.)

References:

• http://wiki.ros.org/rosconsole
• http://answers.ros.org/question/21196...