| 1 | #!/usr/bin/python -tti
|
|---|
| 2 |
|
|---|
| 3 | # for tab completion
|
|---|
| 4 | import rlcompleter
|
|---|
| 5 | import readline
|
|---|
| 6 | readline.parse_and_bind('tab: complete')
|
|---|
| 7 |
|
|---|
| 8 | import sys # for sys.exit() during bebugging mostly :-)
|
|---|
| 9 | import types # for dynamic class construction
|
|---|
| 10 | import time # for time.sleep
|
|---|
| 11 | from pprint import pprint # for nice printing
|
|---|
| 12 |
|
|---|
| 13 | from keyword import iskeyword # in case dynamic methods are equal to keywords
|
|---|
| 14 |
|
|---|
| 15 | import pydim # for the C-API Dim Call Wrappers
|
|---|
| 16 |
|
|---|
| 17 | # using this line makes 'export DIM_DNS_NODE=daq' obsolete
|
|---|
| 18 | pydim.dic_set_dns_node('daq')
|
|---|
| 19 |
|
|---|
| 20 | class FactDimServer( object ):
|
|---|
| 21 | def __init__(self, name):
|
|---|
| 22 | """ sets name of instance to name of server, all uppercase
|
|---|
| 23 | """
|
|---|
| 24 | self.list_of_states = []
|
|---|
| 25 | self.name = name.upper()
|
|---|
| 26 | self.print_state = False
|
|---|
| 27 | self.print_msg = False
|
|---|
| 28 | self.reg_state_cb()
|
|---|
| 29 | self.reg_msg_cb()
|
|---|
| 30 | self.user_func = None
|
|---|
| 31 | self.__delay_between_cmds = 1.0
|
|---|
| 32 | self.__delay_between_services = 1.0
|
|---|
| 33 | self.__last_cmd_send = -1*float('inf')
|
|---|
| 34 | self.__last_service_got = -1*float('inf')
|
|---|
| 35 |
|
|---|
| 36 | def _cmd(self, cmdstr, *args):
|
|---|
| 37 | """ used by all dynamicly created methods, which call a Dim CMD
|
|---|
| 38 | """
|
|---|
| 39 | cmdstr=self.name+'/'+cmdstr.upper()
|
|---|
| 40 | desc = services[self.name][cmdstr.upper()][0]
|
|---|
| 41 |
|
|---|
| 42 | # there is a work around for a bug in pydim
|
|---|
| 43 | # even if a command needs no argument, and desc is also empty string
|
|---|
| 44 | # one has to give one ... need to tell Niko about it.
|
|---|
| 45 | if not desc:
|
|---|
| 46 | desc = 'I'
|
|---|
| 47 | args=(1,)
|
|---|
| 48 | elif desc == 'O':
|
|---|
| 49 | args = (0,)
|
|---|
| 50 | while not time.time() - self.__last_cmd_send > self.__delay_between_cmds:
|
|---|
| 51 | time.sleep(0.5)
|
|---|
| 52 | self.__last_cmd_send = time.time()
|
|---|
| 53 | pydim.dic_sync_cmnd_service(cmdstr, args, desc, timeout=None)
|
|---|
| 54 |
|
|---|
| 55 |
|
|---|
| 56 |
|
|---|
| 57 | def _get(self, service):
|
|---|
| 58 | """ used by all dynamicly created methods, which get a service
|
|---|
| 59 | """
|
|---|
| 60 | full_srv_name = self.name+'/'+service.upper()
|
|---|
| 61 | desc = services[self.name][full_srv_name][0]
|
|---|
| 62 |
|
|---|
| 63 | while not time.time() - self.__last_service_got > self.__delay_between_services:
|
|---|
| 64 | time.sleep(0.5)
|
|---|
| 65 | self.__last_service_got = time.time()
|
|---|
| 66 |
|
|---|
| 67 | return pydim.dic_sync_info_service(full_srv_name, desc)
|
|---|
| 68 |
|
|---|
| 69 |
|
|---|
| 70 | def __call__(self):
|
|---|
| 71 | """ Wrapper / For Convenience
|
|---|
| 72 | self.state() returns a string (if it exists)
|
|---|
| 73 | *returns* numeric state code, parsed from return of self.state()
|
|---|
| 74 | """
|
|---|
| 75 | if hasattr(self, 'stn'):
|
|---|
| 76 | return self.stn
|
|---|
| 77 | else:
|
|---|
| 78 | raise TypeError(self.name+' has no CMD called STATE')
|
|---|
| 79 |
|
|---|
| 80 | def wait(self, state_num, timeout=None):
|
|---|
| 81 | """ waits for a certain state
|
|---|
| 82 | BLOCKING
|
|---|
| 83 | returns True if state was reached
|
|---|
| 84 | returns False if timeout occured
|
|---|
| 85 | raises TypeError if Server has no method state
|
|---|
| 86 | """
|
|---|
| 87 |
|
|---|
| 88 | if not hasattr(self, 'stn'):
|
|---|
| 89 | raise TypeError(self.name+' has no CMD called STATE')
|
|---|
| 90 | if timeout == None:
|
|---|
| 91 | timeout = float('inf')
|
|---|
| 92 | else:
|
|---|
| 93 | timeout = float(timeout)
|
|---|
| 94 | start = time.time()
|
|---|
| 95 | while not self.stn == state_num:
|
|---|
| 96 | time.sleep(0.1)
|
|---|
| 97 | if time.time() >= start+timeout:
|
|---|
| 98 | return False
|
|---|
| 99 | return True
|
|---|
| 100 |
|
|---|
| 101 | def state_callback(self, state):
|
|---|
| 102 | self.sts = state
|
|---|
| 103 | try:
|
|---|
| 104 | self.stn = int(state[state.find('[')+1 : state.find(']')])
|
|---|
| 105 | except ValueError:
|
|---|
| 106 | self.stn = None
|
|---|
| 107 |
|
|---|
| 108 | self.last_st_change = time.time()
|
|---|
| 109 | self.list_of_states.append( (self.last_st_change, self.stn) )
|
|---|
| 110 | if len(self.list_of_states) > 10000:
|
|---|
| 111 | print "list_of_states too long, truncating..."
|
|---|
| 112 | self.list_of_states = self.list_of_states[1000:]
|
|---|
| 113 |
|
|---|
| 114 | if self.user_func:
|
|---|
| 115 | self.user_func( self.stn )
|
|---|
| 116 |
|
|---|
| 117 | if self.print_state:
|
|---|
| 118 | print state
|
|---|
| 119 |
|
|---|
| 120 | def msg_callback(self, msg):
|
|---|
| 121 | if self.print_msg:
|
|---|
| 122 | print msg
|
|---|
| 123 |
|
|---|
| 124 | def reg_state_cb(self):
|
|---|
| 125 | if not hasattr(self, 'state'):
|
|---|
| 126 | raise TypeError(self.name+' has no CMD called STATE')
|
|---|
| 127 | service_name = self.name.upper()+'/STATE'
|
|---|
| 128 | self.state_sid = pydim.dic_info_service(service_name, "C", self.state_callback)
|
|---|
| 129 | if not self.state_sid:
|
|---|
| 130 | del self.state_sid
|
|---|
| 131 | raise IOError('could not register STATE client')
|
|---|
| 132 |
|
|---|
| 133 | def reg_msg_cb(self):
|
|---|
| 134 | if not hasattr(self, 'state'):
|
|---|
| 135 | raise TypeError(self.name+' has no CMD called STATE')
|
|---|
| 136 | service_name = self.name.upper()+'/MESSAGE'
|
|---|
| 137 | self.msg_sid = pydim.dic_info_service(service_name, "C", self.msg_callback)
|
|---|
| 138 | if not self.msg_sid:
|
|---|
| 139 | del self.msg_sid
|
|---|
| 140 | raise IOError('could not register MESSAGE client')
|
|---|
| 141 |
|
|---|
| 142 | def unreg_state_cb(self):
|
|---|
| 143 | if hasattr(self, 'state_sid'):
|
|---|
| 144 | pydim.dic_release_service(self.state_sid)
|
|---|
| 145 | del self.state_sid
|
|---|
| 146 |
|
|---|
| 147 | def unreg_msg_cb(self):
|
|---|
| 148 | if hasattr(self, 'msg_sid'):
|
|---|
| 149 | pydim.dic_release_service(self.msg_sid)
|
|---|
| 150 | del self.msg_sid
|
|---|
| 151 |
|
|---|
| 152 | def __del__(self):
|
|---|
| 153 | self.unreg_state_cb()
|
|---|
| 154 | self.unreg_msg_cb()
|
|---|
| 155 |
|
|---|
| 156 | # utility functions for dynamic addid of methods to classes
|
|---|
| 157 | def add_command(cls, name):
|
|---|
| 158 | meth_name = name.split('/')[1].lower()
|
|---|
| 159 | if iskeyword(meth_name):
|
|---|
| 160 | meth_name += '_cmd'
|
|---|
| 161 |
|
|---|
| 162 | # this is the new command, it simple calls the _cmd() method
|
|---|
| 163 | def new_command(self, *args):
|
|---|
| 164 | self._cmd(meth_name, *args)
|
|---|
| 165 |
|
|---|
| 166 | new_command.__name__ = meth_name
|
|---|
| 167 |
|
|---|
| 168 | # from this line on, the docstring of the method is created
|
|---|
| 169 | if name in dd:
|
|---|
| 170 | if not dd[name]:
|
|---|
| 171 | new_command.__doc__ = "DESC in SERVICE_DESC is empty ?!"
|
|---|
| 172 | else:
|
|---|
| 173 | new_command.__doc__ = dd[name]
|
|---|
| 174 | else:
|
|---|
| 175 | new_command.__doc__ = "-- no DESC found in SERVICE_DESC --"
|
|---|
| 176 | new_command.__doc__ += '\n'
|
|---|
| 177 | new_command.__doc__ += services[name.split('/')[0]][name][0]
|
|---|
| 178 |
|
|---|
| 179 | # this line make the new_command() method, a method of the class cls
|
|---|
| 180 | # giving it the name new_command.__name__
|
|---|
| 181 | setattr( cls, new_command.__name__, new_command)
|
|---|
| 182 |
|
|---|
| 183 | # add_getter is very similar to add_command,
|
|---|
| 184 | # the only difference is, that it calls _get() instead of _cmd()
|
|---|
| 185 | # and since _get() has a return value, this return value is vorwarded to the user
|
|---|
| 186 | def add_getter(cls, name):
|
|---|
| 187 | meth_name = name.split('/')[1].lower()
|
|---|
| 188 | if iskeyword(meth_name):
|
|---|
| 189 | meth_name += '_cmd'
|
|---|
| 190 | def new_command(self):
|
|---|
| 191 | return self._get(meth_name)
|
|---|
| 192 | new_command.__name__ = meth_name
|
|---|
| 193 | if name in dd:
|
|---|
| 194 | if not dd[name]:
|
|---|
| 195 | new_command.__doc__ = "DESC in SERVICE_DESC is empty ?!"
|
|---|
| 196 | else:
|
|---|
| 197 | new_command.__doc__ = dd[name]
|
|---|
| 198 | else:
|
|---|
| 199 | new_command.__doc__ = "-- no DESC found in SERVICE_DESC --"
|
|---|
| 200 | new_command.__doc__ += '\n'
|
|---|
| 201 | new_command.__doc__ += services[name.split('/')[0]][name][0]
|
|---|
| 202 | setattr( cls, new_command.__name__, new_command)
|
|---|
| 203 |
|
|---|
| 204 |
|
|---|
| 205 |
|
|---|
| 206 |
|
|---|
| 207 |
|
|---|
| 208 | # In order to create classes according to the Dim-Servers, currently connected
|
|---|
| 209 | # to the DIS_DNS I have to parse DIS_DNS/SERVER_LIST
|
|---|
| 210 | # This is done in two steps, first I get the list of Server Names from DIS_DNS
|
|---|
| 211 | # and the I get the list of each servers services and cmds,
|
|---|
| 212 | # from each servers SERVICE_LIST and the service/command description
|
|---|
| 213 | # from each servers SERVICE_DESC
|
|---|
| 214 | # I get quite a lot of information, which I store in python dicts, or
|
|---|
| 215 | # even nested dicts, if necessary.
|
|---|
| 216 |
|
|---|
| 217 | def ParseDnsServerList():
|
|---|
| 218 | # making server list
|
|---|
| 219 | rawlist = pydim.dic_sync_info_service('DIS_DNS/SERVER_LIST','C')
|
|---|
| 220 | # the output needs to be treated a bit .. it is a tuple with only one long string in it
|
|---|
| 221 | # the string contains | and the strange character \x00
|
|---|
| 222 | # I use both to cut the list apart
|
|---|
| 223 | rawlist = rawlist[0].split('\x00')
|
|---|
| 224 | servers_n_hosts = rawlist[0].split('|')
|
|---|
| 225 | server_ids = rawlist[1].split('|')
|
|---|
| 226 |
|
|---|
| 227 | servers = {}
|
|---|
| 228 | for i,snh in enumerate(servers_n_hosts):
|
|---|
| 229 | snh = snh.split('@')
|
|---|
| 230 | s = snh[0]
|
|---|
| 231 | h = snh[1]
|
|---|
| 232 | sid = server_ids[i]
|
|---|
| 233 | servers[s] = (sid, h)
|
|---|
| 234 |
|
|---|
| 235 | return servers
|
|---|
| 236 |
|
|---|
| 237 |
|
|---|
| 238 |
|
|---|
| 239 | # servers should be a dict containing uppercase server names as keys,
|
|---|
| 240 | # the values are not needed, so it might be any iteratable python listlike type
|
|---|
| 241 | # to be precise
|
|---|
| 242 | def ParseServersServiceList( servers ):
|
|---|
| 243 |
|
|---|
| 244 | services = {}
|
|---|
| 245 | dd = {}
|
|---|
| 246 | for server in servers:
|
|---|
| 247 | # sl_raw is a tuple, with an really long string, which needs to be parsed
|
|---|
| 248 | sl_raw = pydim.dic_sync_info_service(server+'/SERVICE_LIST','C')[0]
|
|---|
| 249 |
|
|---|
| 250 | # even without parsing, I can find out, if this server also gives me a
|
|---|
| 251 | # service description list. In case it does not, this is fine as well
|
|---|
| 252 | # the doc string of the dynamicly created methods, will then contain
|
|---|
| 253 | # a note, that therer was no SERVICE_DESC ...
|
|---|
| 254 | if server+'/SERVICE_DESC' in sl_raw:
|
|---|
| 255 | sd_raw = pydim.dic_sync_info_service(server+'/SERVICE_DESC','C')[0]
|
|---|
| 256 | else:
|
|---|
| 257 | sd_raw = ''
|
|---|
| 258 |
|
|---|
| 259 | # now before parsing, I strip off all ASCII zeroes '\x00' and all
|
|---|
| 260 | # line breaks off the *end* of the long string of both
|
|---|
| 261 | # the service list sl
|
|---|
| 262 | # and service description sd
|
|---|
| 263 | #
|
|---|
| 264 | # I think in sl_raw were alse some '\x00' in the middle .. these
|
|---|
| 265 | # are replaced by nothing, in case they are there.
|
|---|
| 266 | sl_raw = sl_raw.rstrip('\x00\n')
|
|---|
| 267 | sl_raw = sl_raw.replace('\x00','')
|
|---|
| 268 | sd_raw = sd_raw.rstrip('\x00\n')
|
|---|
| 269 |
|
|---|
| 270 | # The lists are seperated by line breaks, so I split them using this
|
|---|
| 271 | sl = sl_raw.split('\n')
|
|---|
| 272 | sd = sd_raw.split('\n')
|
|---|
| 273 |
|
|---|
| 274 | # First I parse the service descriptons, so I have them available,
|
|---|
| 275 | # when I create the dict full of services.
|
|---|
| 276 | # All desciptions look like this
|
|---|
| 277 | # 'SERVER/SERVICE=some descriptive text' or
|
|---|
| 278 | # 'SERVER/SERVICE='
|
|---|
| 279 | # this I use to create the dictionary.
|
|---|
| 280 | # create descripton dict dd from service_desc list sd
|
|---|
| 281 | for d_str in sd:
|
|---|
| 282 | service,equalsign,desc = d_str.partition('=')
|
|---|
| 283 | #if '=' != equalsign:
|
|---|
| 284 | # print "Error: server:", server, "desc:", d_str
|
|---|
| 285 | dd[service] = desc
|
|---|
| 286 |
|
|---|
| 287 | # Now I fill ther services dict. Each server gets a nested dict
|
|---|
| 288 | # inside services.
|
|---|
| 289 | # Each service is explained in a string with a '|' in between.
|
|---|
| 290 | # I use this for spliting.
|
|---|
| 291 | # The string look like this
|
|---|
| 292 | # SERVER/SERVICE|format-desc-str(e.g. I:2;C)|-empty- or CMD or RPC|
|
|---|
| 293 | services[server] = {}
|
|---|
| 294 | for service in sl:
|
|---|
| 295 | service = service.split('|')
|
|---|
| 296 | if service[0] in dd:
|
|---|
| 297 | services[server][service[0]] = (
|
|---|
| 298 | service[1], service[2], dd[service[0]])
|
|---|
| 299 | return services, dd
|
|---|
| 300 |
|
|---|
| 301 |
|
|---|
| 302 | servers = ParseDnsServerList()
|
|---|
| 303 | services, dd = ParseServersServiceList( servers )
|
|---|
| 304 |
|
|---|
| 305 | # create one class for each Fact Dim Server
|
|---|
| 306 | FactDimServerClasses = []
|
|---|
| 307 | for server_name in servers:
|
|---|
| 308 | FactDimServerClasses.append(
|
|---|
| 309 | types.ClassType( server_name, (FactDimServer,), {}) )
|
|---|
| 310 | for cmd in services[server_name]:
|
|---|
| 311 | if 'CMD' in services[server_name][cmd][1]:
|
|---|
| 312 | cmdname = cmd.split('/')[1]
|
|---|
| 313 | add_command(FactDimServerClasses[-1], cmd)
|
|---|
| 314 | elif not services[server_name][cmd][1]:
|
|---|
| 315 | cmdname = cmd.split('/')[1]
|
|---|
| 316 | add_getter(FactDimServerClasses[-1], cmd)
|
|---|
| 317 |
|
|---|
| 318 |
|
|---|
| 319 |
|
|---|
| 320 | # create an instace of each of the classes
|
|---|
| 321 | # and make it globally known, i.e. known to the Python interpreter
|
|---|
| 322 | # all the ServerClass instances are collected in a list
|
|---|
| 323 | # so one can get a quick overview --> print dims
|
|---|
| 324 | dims = []
|
|---|
| 325 | for i,server_name in enumerate(servers):
|
|---|
| 326 | if server_name == 'DIS_DNS':
|
|---|
| 327 | continue
|
|---|
| 328 | new_instance = FactDimServerClasses[i](server_name)
|
|---|
| 329 | dims.append( new_instance )
|
|---|
| 330 | globals()[server_name.lower()] = new_instance
|
|---|
| 331 | del new_instance
|
|---|
| 332 | del i
|
|---|
| 333 | ##############################################################################
|
|---|
| 334 | # class for colored printing
|
|---|
| 335 |
|
|---|
| 336 | class bcolors:
|
|---|
| 337 | HEADER = '\033[95m'
|
|---|
| 338 | OKBLUE = '\033[94m'
|
|---|
| 339 | OKGREEN = '\033[92m'
|
|---|
| 340 | WARNING = '\033[93m'
|
|---|
| 341 | FAIL = '\033[91m'
|
|---|
| 342 | ENDC = '\033[0m'
|
|---|
| 343 |
|
|---|
| 344 | def disable(self):
|
|---|
| 345 | self.HEADER = ''
|
|---|
| 346 | self.OKBLUE = ''
|
|---|
| 347 | self.OKGREEN = ''
|
|---|
| 348 | self.WARNING = ''
|
|---|
| 349 | self.FAIL = ''
|
|---|
| 350 | self.ENDC = ''
|
|---|
| 351 |
|
|---|
| 352 | ##############################################################################
|
|---|
| 353 | # class which implements colored printing
|
|---|
| 354 | # method calls can be used instead of Python print calls
|
|---|
| 355 | # for conveniently printing colored output.
|
|---|
| 356 |
|
|---|
| 357 |
|
|---|
| 358 | class MSG( bcolors):
|
|---|
| 359 | def __init__(self, verbose = True):
|
|---|
| 360 | """ create MSG instance,
|
|---|
| 361 | default is verbose,
|
|---|
| 362 | sets self.output
|
|---|
| 363 |
|
|---|
| 364 | if:
|
|---|
| 365 | self.*output* = True, object behaves as expeted
|
|---|
| 366 | if False, no call return anything
|
|---|
| 367 | """
|
|---|
| 368 | self.output = verbose
|
|---|
| 369 |
|
|---|
| 370 | def fail(self, text ):
|
|---|
| 371 | """ print in RED
|
|---|
| 372 | """
|
|---|
| 373 | text = str(text)
|
|---|
| 374 | if self.output:
|
|---|
| 375 | print bcolors.FAIL + "ERROR:" + bcolors.ENDC,
|
|---|
| 376 | print bcolors.FAIL + text + bcolors.ENDC
|
|---|
| 377 |
|
|---|
| 378 | def warn(self, text ):
|
|---|
| 379 | """ print in YELLOW
|
|---|
| 380 | """
|
|---|
| 381 | text = str(text)
|
|---|
| 382 | if self.output:
|
|---|
| 383 | print bcolors.WARNING + text + bcolors.ENDC
|
|---|
| 384 |
|
|---|
| 385 | def ok(self, text ):
|
|---|
| 386 | """ print in GREEN
|
|---|
| 387 | """
|
|---|
| 388 | text = str(text)
|
|---|
| 389 | if self.output:
|
|---|
| 390 | print bcolors.OKGREEN + text + bcolors.ENDC
|
|---|
| 391 |
|
|---|
| 392 | def __call__(self, *args):
|
|---|
| 393 | """ print as Python print would do
|
|---|
| 394 | """
|
|---|
| 395 | if self.output:
|
|---|
| 396 | for arg in args:
|
|---|
| 397 | print arg,
|
|---|
| 398 | print
|
|---|
| 399 |
|
|---|
