text: #!/usr/bin/python
  
  """
  Copyright (c) 2015,  BROCADE COMMUNICATIONS SYSTEMS, INC
  
  All rights reserved.
  
  Redistribution and use in source and binary forms, with or without
  modification, are permitted provided that the following conditions are met:
  
  1. Redistributions of source code must retain the above copyright notice,
  this list of conditions and the following disclaimer.
  
  2. Redistributions in binary form must reproduce the above copyright notice,
  this list of conditions and the following disclaimer in the documentation
  and/or other materials provided with the distribution.
  
  3. Neither the name of the copyright holder nor the names of its
  contributors may be used to endorse or promote products derived from this
  software without specific prior written permission.
  
  THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
  AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
  IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
  ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE
  LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
  CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
  SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
  INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
  CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
  ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF
  THE POSSIBILITY OF SUCH DAMAGE.
  
  
  @authors: Sergei Garbuzov
  @status: Development
  @version: 1.1.0
  
  
  """
  
  import sys
  import getopt
  
  from pybvc.controller.controller import Controller
  from pybvc.common.status import STATUS
  from pybvc.common.utils import load_dict_from_file
  
  
  def usage(myname):
      print('   Usage: %s -i <identifier> -v <version>' % myname)
      sys.exit()
  
  if __name__ == "__main__":
  
      f = "cfg.yml"
      d = {}
      if(load_dict_from_file(f, d) == False):
          print("Config file '%s' read error: " % f)
          exit()
  
      try:
          ctrlIpAddr = d['ctrlIpAddr']
          ctrlPortNum = d['ctrlPortNum']
          ctrlUname = d['ctrlUname']
          ctrlPswd = d['ctrlPswd']
      except:
          print ("Failed to get Controller device attributes")
          exit(0)
  
      model_identifier = None
      model_version = None
  
      if(len(sys.argv) == 1):
          print("   Error: missing arguments")
          usage(sys.argv[0])
  
      argv = sys.argv[1:]
      try:
          opts, args = getopt.getopt(argv,"i:v:h",["identifier=","version=","help"])
      except getopt.GetoptError, e:
          print("   Error: %s" % e.msg)
          usage(sys.argv[0])
  
      for opt, arg in opts:
          if opt in ("-h", "--help"):
              usage(sys.argv[0])
          elif opt in ("-i", "--identifier"):
              model_identifier = arg
          elif opt in ("-v", "--version"):
              model_version = arg
          else:
              print("Error: failed to parse option %s" % opt)
              usage(sys.argv[0])
  
      if(model_identifier == None) or (model_version == None):
          print("Error: incomplete command")
          usage(sys.argv[0])
  
      ctrl = Controller(ctrlIpAddr, ctrlPortNum, ctrlUname, ctrlPswd)
      print ("<<< 'Controller': %s" % (ctrlIpAddr))
      result = ctrl.get_schema("controller-config", model_identifier, model_version)
      status = result.get_status()
      if(status.eq(STATUS.OK) == True):
          print "YANG model definition:"
          schema = result.get_data()
          print schema.encode('utf-8', 'replace')
      else:
          print ("\n")
          print ("!!!Failed, reason: %s" % status.brief().lower())
          print ("%s" % status.detailed())
          exit(0)
  
      print ("\n")
  