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00001 #!/usr/bin/env python 00002 00003 """ 00004 relax_arm_server.py - a simple service to relax the arm 00005 Copyright (c) 2011 Vanadium Labs LLC. All right reserved. 00006 00007 Redistribution and use in source and binary forms, with or without 00008 modification, are permitted provided that the following conditions are met: 00009 * Redistributions of source code must retain the above copyright 00010 notice, this list of conditions and the following disclaimer. 00011 * Redistributions in binary form must reproduce the above copyright 00012 notice, this list of conditions and the following disclaimer in the 00013 documentation and/or other materials provided with the distribution. 00014 * Neither the name of the copyright holders nor the names of its 00015 contributors may be used to endorse or promote products derived 00016 from this software without specific prior written permission. 00017 00018 THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" AND 00019 ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED 00020 WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE 00021 DISCLAIMED. IN NO EVENT SHALL VANADIUM LABS BE LIABLE FOR ANY DIRECT, INDIRECT, 00022 INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT 00023 LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, 00024 OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF 00025 LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE 00026 OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF 00027 ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. 00028 """ 00029 00030 import roslib; roslib.load_manifest('arbotix_python'); roslib.load_manifest('simple_arm_actions') 00031 import rospy, actionlib 00032 00033 from arbotix_msgs.srv import Relax 00034 from simple_arm_actions.msg import * 00035 00036 class RelaxArmServer: 00037 00038 def __init__(self): 00039 rospy.init_node("relax_arm_server") 00040 try: 00041 self.joints = rospy.get_param("~joints") 00042 except: 00043 self.joints = rospy.get_param("/simple_arms/joints") 00044 00045 self.services = [rospy.ServiceProxy(name+'/relax',Relax) for name in self.joints] 00046 self.server = actionlib.SimpleActionServer("relax_arm", RelaxArmAction, execute_cb=self.actionCb, auto_start=False) 00047 self.server.start() 00048 rospy.spin() 00049 00050 def actionCb(self, req): 00051 for service in self.services: 00052 service() 00053 self.server.set_succeeded( ResetArmResult() ) 00054 00055 00056 if __name__ == '__main__': 00057 try: 00058 RelaxArmServer() 00059 except rospy.ROSInterruptException: 00060 rospy.loginfo("And that's all folks...") 00061