| 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 | pydim.dic_set_dns_node('newdaq')
|
|---|
| 20 |
|
|---|
| 21 | def print_command( name, f ):
|
|---|
| 22 | meth_name = name.split('/')[1].lower()
|
|---|
| 23 | if iskeyword(meth_name):
|
|---|
| 24 | meth_name += '_cmd'
|
|---|
| 25 |
|
|---|
| 26 | doc_string = ""
|
|---|
| 27 | doc_string += "Dim Command \n"
|
|---|
| 28 | if name in dd:
|
|---|
| 29 | if not dd[name]:
|
|---|
| 30 | doc_string += "DESC in SERVICE_DESC is empty ?!"
|
|---|
| 31 | else:
|
|---|
| 32 | doc_string += dd[name]
|
|---|
| 33 | else:
|
|---|
| 34 | doc_string += "-- no DESC found in SERVICE_DESC --"
|
|---|
| 35 | doc_string += '\n'
|
|---|
| 36 | doc_string += services[name.split('/')[0]][name][0]
|
|---|
| 37 |
|
|---|
| 38 |
|
|---|
| 39 | # this is the new command, it simply calls the _cmd() method
|
|---|
| 40 | f.write(" def " + meth_name + "(self, *args):\n" )
|
|---|
| 41 | f.write(' """ \n')
|
|---|
| 42 | for line in doc_string.split('\n'):
|
|---|
| 43 | if '|' in line:
|
|---|
| 44 | for subline in line.split('|'):
|
|---|
| 45 | if subline:
|
|---|
| 46 | f.write(' ' + subline + '\n' )
|
|---|
| 47 | else:
|
|---|
| 48 | f.write(' ' + line + '\n' )
|
|---|
| 49 |
|
|---|
| 50 | f.write(' """ \n')
|
|---|
| 51 | f.write(' self._cmd("' + meth_name.upper() + '", *args)\n\n' )
|
|---|
| 52 |
|
|---|
| 53 | def print_getter( name, f ):
|
|---|
| 54 | meth_name = name.split('/')[1].lower()
|
|---|
| 55 | if iskeyword(meth_name):
|
|---|
| 56 | meth_name += '_get'
|
|---|
| 57 |
|
|---|
| 58 | doc_string = ""
|
|---|
| 59 | doc_string += "Dim Service \n"
|
|---|
| 60 | if name in dd:
|
|---|
| 61 | if not dd[name]:
|
|---|
| 62 | doc_string += "DESC in SERVICE_DESC is empty ?!"
|
|---|
| 63 | else:
|
|---|
| 64 | doc_string += dd[name]
|
|---|
| 65 | else:
|
|---|
| 66 | doc_string += "-- no DESC found in SERVICE_DESC --"
|
|---|
| 67 | doc_string += '\n'
|
|---|
| 68 | doc_string += services[name.split('/')[0]][name][0]
|
|---|
| 69 |
|
|---|
| 70 |
|
|---|
| 71 | # this is the new command, it simply calls the _cmd() method
|
|---|
| 72 | f.write(" def " + meth_name + "(self):\n" )
|
|---|
| 73 | f.write(' """ \n')
|
|---|
| 74 | for line in doc_string.split('\n'):
|
|---|
| 75 | if '|' in line:
|
|---|
| 76 | for subline in line.split('|'):
|
|---|
| 77 | if subline:
|
|---|
| 78 | f.write(' ' + subline + '\n' )
|
|---|
| 79 | else:
|
|---|
| 80 | f.write(' ' + line + '\n' )
|
|---|
| 81 | f.write(' """ \n')
|
|---|
| 82 | f.write(' return self._get("' + meth_name.upper() + '")\n\n' )
|
|---|
| 83 |
|
|---|
| 84 |
|
|---|
| 85 |
|
|---|
| 86 |
|
|---|
| 87 | class FactDimServer( object ):
|
|---|
| 88 | def __init__(self, name, services):
|
|---|
| 89 | """ sets name of instance to name of server, all uppercase
|
|---|
| 90 | """
|
|---|
| 91 | self.list_of_states = []
|
|---|
| 92 | self.name = name.upper()
|
|---|
| 93 | self.print_state = False
|
|---|
| 94 | self.print_msg = False
|
|---|
| 95 | self.reg_state_cb()
|
|---|
| 96 | self.reg_msg_cb()
|
|---|
| 97 | self.user_func = None
|
|---|
| 98 | self.__delay_between_cmds = 1.0
|
|---|
| 99 | self.__delay_between_services = 1.0
|
|---|
| 100 | self.__last_cmd_send = -1*float('inf')
|
|---|
| 101 | self.__last_service_got = -1*float('inf')
|
|---|
| 102 | self.services = services
|
|---|
| 103 |
|
|---|
| 104 | def _cmd(self, cmdstr, *args):
|
|---|
| 105 | """ used by all dynamicly created methods, which call a Dim CMD
|
|---|
| 106 | """
|
|---|
| 107 | cmdstr=self.name+'/'+cmdstr.upper()
|
|---|
| 108 | desc = self.services[self.name][cmdstr.upper()][0]
|
|---|
| 109 |
|
|---|
| 110 | # there is a work around for a bug in pydim
|
|---|
| 111 | # even if a command needs no argument, and desc is also empty string
|
|---|
| 112 | # one has to give one ... need to tell Niko about it.
|
|---|
| 113 | if not desc:
|
|---|
| 114 | desc = 'I'
|
|---|
| 115 | args=(1,)
|
|---|
| 116 | elif desc == 'O':
|
|---|
| 117 | args = (0,)
|
|---|
| 118 | while not time.time() - self.__last_cmd_send > self.__delay_between_cmds:
|
|---|
| 119 | time.sleep(0.5)
|
|---|
| 120 | self.__last_cmd_send = time.time()
|
|---|
| 121 | pydim.dic_sync_cmnd_service(cmdstr, args, desc, timeout=1)
|
|---|
| 122 |
|
|---|
| 123 |
|
|---|
| 124 |
|
|---|
| 125 | def _get(self, service):
|
|---|
| 126 | """ used by all dynamicly created methods, which get a service
|
|---|
| 127 | """
|
|---|
| 128 | full_srv_name = self.name+'/'+service.upper()
|
|---|
| 129 | desc = self.services[self.name][full_srv_name][0]
|
|---|
| 130 |
|
|---|
| 131 | while not time.time() - self.__last_service_got > self.__delay_between_services:
|
|---|
| 132 | time.sleep(0.5)
|
|---|
| 133 | self.__last_service_got = time.time()
|
|---|
| 134 | #print 'full_srv_name',full_srv_name
|
|---|
| 135 | #print 'desc', desc
|
|---|
| 136 | return pydim.dic_sync_info_service(full_srv_name, desc, timeout=1)
|
|---|
| 137 |
|
|---|
| 138 |
|
|---|
| 139 |
|
|---|
| 140 | def __call__(self):
|
|---|
| 141 | """ Wrapper / For Convenience
|
|---|
| 142 | self.state() returns a string (if it exists)
|
|---|
| 143 | *returns* numeric state code, parsed from return of self.state()
|
|---|
| 144 | """
|
|---|
| 145 | if hasattr(self, 'stn'):
|
|---|
| 146 | return self.stn
|
|---|
| 147 | else:
|
|---|
| 148 | raise TypeError(self.name+' has no CMD called STATE')
|
|---|
| 149 |
|
|---|
| 150 | def wait(self, state_num, timeout=None):
|
|---|
| 151 | """ waits for a certain state
|
|---|
| 152 | BLOCKING
|
|---|
| 153 | returns True if state was reached
|
|---|
| 154 | returns False if timeout occured
|
|---|
| 155 | raises TypeError if Server has no method state
|
|---|
| 156 | """
|
|---|
| 157 |
|
|---|
| 158 | if not hasattr(self, 'stn'):
|
|---|
| 159 | raise TypeError(self.name+' has no CMD called STATE')
|
|---|
| 160 | if timeout == None:
|
|---|
| 161 | timeout = float('inf')
|
|---|
| 162 | else:
|
|---|
| 163 | timeout = float(timeout)
|
|---|
| 164 | start = time.time()
|
|---|
| 165 | while not self.stn == state_num:
|
|---|
| 166 | time.sleep(0.1)
|
|---|
| 167 | if time.time() >= start+timeout:
|
|---|
| 168 | return False
|
|---|
| 169 | return True
|
|---|
| 170 |
|
|---|
| 171 | def state_callback(self, state):
|
|---|
| 172 | self.sts = state
|
|---|
| 173 | try:
|
|---|
| 174 | self.stn = int(state[state.find('[')+1 : state.find(']')])
|
|---|
| 175 | except ValueError:
|
|---|
| 176 | self.stn = None
|
|---|
| 177 |
|
|---|
| 178 | self.last_st_change = time.time()
|
|---|
| 179 | self.list_of_states.append( (self.last_st_change, self.stn) )
|
|---|
| 180 | if len(self.list_of_states) > 10000:
|
|---|
| 181 | print "list_of_states too long, truncating..."
|
|---|
| 182 | self.list_of_states = self.list_of_states[1000:]
|
|---|
| 183 |
|
|---|
| 184 | if self.user_func:
|
|---|
| 185 | self.user_func( self.stn )
|
|---|
| 186 |
|
|---|
| 187 | if self.print_state:
|
|---|
| 188 | print state
|
|---|
| 189 |
|
|---|
| 190 | def msg_callback(self, msg):
|
|---|
| 191 | if self.print_msg:
|
|---|
| 192 | print msg
|
|---|
| 193 |
|
|---|
| 194 | def reg_state_cb(self):
|
|---|
| 195 | if not hasattr(self, 'state'):
|
|---|
| 196 | raise TypeError(self.name+' has no CMD called STATE')
|
|---|
| 197 | service_name = self.name.upper()+'/STATE'
|
|---|
| 198 | self.state_sid = pydim.dic_info_service(service_name, "C", self.state_callback)
|
|---|
| 199 | if not self.state_sid:
|
|---|
| 200 | del self.state_sid
|
|---|
| 201 | raise IOError('could not register STATE client')
|
|---|
| 202 |
|
|---|
| 203 | def reg_msg_cb(self):
|
|---|
| 204 | if not hasattr(self, 'state'):
|
|---|
| 205 | raise TypeError(self.name+' has no CMD called STATE')
|
|---|
| 206 | service_name = self.name.upper()+'/MESSAGE'
|
|---|
| 207 | self.msg_sid = pydim.dic_info_service(service_name, "C", self.msg_callback)
|
|---|
| 208 | if not self.msg_sid:
|
|---|
| 209 | del self.msg_sid
|
|---|
| 210 | raise IOError('could not register MESSAGE client')
|
|---|
| 211 |
|
|---|
| 212 | def unreg_state_cb(self):
|
|---|
| 213 | if hasattr(self, 'state_sid'):
|
|---|
| 214 | pydim.dic_release_service(self.state_sid)
|
|---|
| 215 | del self.state_sid
|
|---|
| 216 |
|
|---|
| 217 | def unreg_msg_cb(self):
|
|---|
| 218 | if hasattr(self, 'msg_sid'):
|
|---|
| 219 | pydim.dic_release_service(self.msg_sid)
|
|---|
| 220 | del self.msg_sid
|
|---|
| 221 |
|
|---|
| 222 | def __del__(self):
|
|---|
| 223 | self.unreg_state_cb()
|
|---|
| 224 | self.unreg_msg_cb()
|
|---|
| 225 |
|
|---|
| 226 |
|
|---|
| 227 |
|
|---|
| 228 | # In order to create classes according to the Dim-Servers, currently connected
|
|---|
| 229 | # to the DIS_DNS I have to parse DIS_DNS/SERVER_LIST
|
|---|
| 230 | # This is done in two steps, first I get the list of Server Names from DIS_DNS
|
|---|
| 231 | # and the I get the list of each servers services and cmds,
|
|---|
| 232 | # from each servers SERVICE_LIST and the service/command description
|
|---|
| 233 | # from each servers SERVICE_DESC
|
|---|
| 234 | # I get quite a lot of information, which I store in python dicts, or
|
|---|
| 235 | # even nested dicts, if necessary.
|
|---|
| 236 | def ParseDnsServerList( timeout = 5):
|
|---|
| 237 | """ requests DIS_DNS/SERVER_LSIT and creates dict *servers* from it,
|
|---|
| 238 | which is returned as well.
|
|---|
| 239 |
|
|---|
| 240 | the returned dict contains:
|
|---|
| 241 | { "SERVER_NAME": (pid_of_server_process, host_the_server_runs_on) }
|
|---|
| 242 |
|
|---|
| 243 | the SERVER_NAME seems to be in capital letter all the time, but I'm
|
|---|
| 244 | not sure if this is really ensured by Dim or if this was ensured by
|
|---|
| 245 | Thomas manually. So maybe one should not rely on this.
|
|---|
| 246 |
|
|---|
| 247 | In case the request of DIS_DNS/SERVER_LIST times out, no Exception
|
|---|
| 248 | is thrown, but the program exits. This is probably bullshit.
|
|---|
| 249 | """
|
|---|
| 250 | # making server list
|
|---|
| 251 | rawlist = pydim.dic_sync_info_service('DIS_DNS/SERVER_LIST','C', timeout=5)
|
|---|
| 252 | if rawlist == None:
|
|---|
| 253 | ## todo: throw an exception here!
|
|---|
| 254 | print "couldn't get the server list of DIS_DNS. program abortion..."
|
|---|
| 255 | sys.exit(1)
|
|---|
| 256 | #print rawlist
|
|---|
| 257 | # the output needs to be treated a bit .. it is a tuple with only one long string in it
|
|---|
| 258 | # the string contains | and the strange character \x00 (ascii-zero)
|
|---|
| 259 | # I use both to cut the list apart
|
|---|
| 260 | rawlist = rawlist[0].split('\x00')
|
|---|
| 261 | servers_n_hosts = rawlist[0].split('|')
|
|---|
| 262 | server_ids = rawlist[1].split('|')
|
|---|
| 263 |
|
|---|
| 264 | servers = {}
|
|---|
| 265 | for i,snh in enumerate(servers_n_hosts):
|
|---|
| 266 | snh = snh.split('@')
|
|---|
| 267 | s = snh[0]
|
|---|
| 268 | h = snh[1]
|
|---|
| 269 | sid = server_ids[i]
|
|---|
| 270 | servers[s] = (sid, h)
|
|---|
| 271 |
|
|---|
| 272 | return servers
|
|---|
| 273 |
|
|---|
| 274 |
|
|---|
| 275 |
|
|---|
| 276 | # servers should be a dict containing uppercase server names as keys,
|
|---|
| 277 | # the dict-values are not needed, so it might be any iteratable python listlike type
|
|---|
| 278 | # to be precise
|
|---|
| 279 | def ParseServersServiceList( servers ):
|
|---|
| 280 | """ this function parses SERVER_NAME/SERVICE_LIST as well as
|
|---|
| 281 | SERVER_NAME/SERVICE_DESC of all SERVER_NAME in the input list-like *servers*
|
|---|
| 282 |
|
|---|
| 283 | two dicts are returned:
|
|---|
| 284 | *services* - nested dict:
|
|---|
| 285 | { "SERVER_NAME" : { "SERVER_NAME/SERVICE_NAME" : (
|
|---|
| 286 | "format-description-string like: I:2;C",
|
|---|
| 287 | "" or "CMP" or "RPC",
|
|---|
| 288 | "service description text" ) } }
|
|---|
| 289 |
|
|---|
| 290 | *dd* - normal dict:
|
|---|
| 291 | { "SERVER_NAME/SERVICE_NAME" : "service description text" }
|
|---|
| 292 |
|
|---|
| 293 | """
|
|---|
| 294 |
|
|---|
| 295 | services = {}
|
|---|
| 296 | dd = {}
|
|---|
| 297 | for server in servers:
|
|---|
| 298 | # sl_raw is a tuple, with one really long string, which needs to be parsed
|
|---|
| 299 | sl_raw = pydim.dic_sync_info_service(server+'/SERVICE_LIST','C',timeout=3)[0]
|
|---|
| 300 | if sl_raw == None:
|
|---|
| 301 | print "couldn't get the service list of ", server, "program abortion..."
|
|---|
| 302 | sys.exit(1)
|
|---|
| 303 | # print server
|
|---|
| 304 | # print sl_raw
|
|---|
| 305 | # even without parsing, I can find out, if this server also gives me a
|
|---|
| 306 | # service description list. In case it does not, this is fine as well
|
|---|
| 307 | # the doc string of the dynamicly created methods, will then contain
|
|---|
| 308 | # a note, that therer was no SERVICE_DESC ...
|
|---|
| 309 | if server+'/SERVICE_DESC' in sl_raw:
|
|---|
| 310 | sd_raw = pydim.dic_sync_info_service(server+'/SERVICE_DESC','C',timeout=3)[0]
|
|---|
| 311 | if sd_raw == None:
|
|---|
| 312 | print "couldn't get the service description list of ", server, "program abortion..."
|
|---|
| 313 | sys.exit(1)
|
|---|
| 314 | else:
|
|---|
| 315 | sd_raw = ''
|
|---|
| 316 |
|
|---|
| 317 | # now before parsing, I strip off all ASCII zeroes '\x00' and all
|
|---|
| 318 | # line breaks off the *end* of the long string of both
|
|---|
| 319 | # the service list sl
|
|---|
| 320 | # and service description sd
|
|---|
| 321 | #
|
|---|
| 322 | # I think in sl_raw were alse some '\x00' in the middle .. these
|
|---|
| 323 | # are replaced by nothing, in case they are there.
|
|---|
| 324 | sl_raw = sl_raw.rstrip('\x00\n')
|
|---|
| 325 | sl_raw = sl_raw.replace('\x00','')
|
|---|
| 326 | sd_raw = sd_raw.rstrip('\x00\n')
|
|---|
| 327 |
|
|---|
| 328 | # The lists are seperated by line breaks, so I split them using this
|
|---|
| 329 | sl = sl_raw.split('\n')
|
|---|
| 330 | sd = sd_raw.split('\n')
|
|---|
| 331 |
|
|---|
| 332 | # First I parse the service descriptons, so I have them available,
|
|---|
| 333 | # when I create the dict full of services.
|
|---|
| 334 | # All desciptions look like this
|
|---|
| 335 | # 'SERVER/SERVICE=some descriptive text' or
|
|---|
| 336 | # 'SERVER/SERVICE='
|
|---|
| 337 | # this I use to create the dictionary.
|
|---|
| 338 | # create descripton dict dd from service_desc list sd
|
|---|
| 339 | for d_str in sd:
|
|---|
| 340 | service,equalsign,desc = d_str.partition('=')
|
|---|
| 341 | if not '/' in service:
|
|---|
| 342 | service = server+'/'+service
|
|---|
| 343 | #if '=' != equalsign:
|
|---|
| 344 | # print "Error: server:", server, "desc:", d_str
|
|---|
| 345 | dd[service] = desc
|
|---|
| 346 |
|
|---|
| 347 | # Now I fill ther services dict. Each server gets a nested dict
|
|---|
| 348 | # inside services.
|
|---|
| 349 | # Each service is explained in a string with a '|' in between.
|
|---|
| 350 | # I use this for spliting.
|
|---|
| 351 | # The string look like this
|
|---|
| 352 | # SERVER/SERVICE|format-desc-str(e.g. I:2;C)|-empty- or CMD or RPC|
|
|---|
| 353 | services[server] = {}
|
|---|
| 354 | for service in sl:
|
|---|
| 355 | service = service.split('|')
|
|---|
| 356 | if service[0] in dd:
|
|---|
| 357 | services[server][service[0]] = (
|
|---|
| 358 | service[1], service[2], dd[service[0]])
|
|---|
| 359 | return services, dd
|
|---|
| 360 |
|
|---|
| 361 |
|
|---|
| 362 |
|
|---|
| 363 | if __name__ == '__main__':
|
|---|
| 364 |
|
|---|
| 365 | print 'requesting and parsing DIM DNS server list'
|
|---|
| 366 | servers = ParseDnsServerList()
|
|---|
| 367 | print '... parsing each servers service list'
|
|---|
| 368 | services, dd = ParseServersServiceList( servers )
|
|---|
| 369 |
|
|---|
| 370 | # since I want this text to created for reference
|
|---|
| 371 | # I will create it here
|
|---|
| 372 | print "creating fix class definitions in a file:"
|
|---|
| 373 | f = open("fact_dim_servers.py", "w")
|
|---|
| 374 | f.write("from make_fix_dimservers import FactDimServer\n")
|
|---|
| 375 |
|
|---|
| 376 | for server_name in servers:
|
|---|
| 377 |
|
|---|
| 378 | if server_name == "DIS_DNS":
|
|---|
| 379 | continue
|
|---|
| 380 |
|
|---|
| 381 | f.write("class "+server_name+" ( FactDimServer): \n")
|
|---|
| 382 |
|
|---|
| 383 | for cmd in services[server_name]:
|
|---|
| 384 | cmdname = cmd.split('/')
|
|---|
| 385 | if len(cmdname) > 1:
|
|---|
| 386 | cmdname = cmdname[1]
|
|---|
| 387 | elif len(cmdname) >0:
|
|---|
| 388 | cmdname = cmdname[0]
|
|---|
| 389 | cmd = server_name+'/'+cmdname
|
|---|
| 390 | else:
|
|---|
| 391 | print server_name, cmd
|
|---|
| 392 | raise ValueError('was not able to parse service/command names')
|
|---|
| 393 | if 'CMD' in services[server_name][cmd][1]:
|
|---|
| 394 | print_command(cmd, f)
|
|---|
| 395 | elif not services[server_name][cmd][1]:
|
|---|
| 396 | print_getter(cmd, f)
|
|---|
| 397 |
|
|---|
| 398 |
|
|---|
| 399 | f.close()
|
|---|
| 400 |
|
|---|
| 401 | import fact_dim_servers
|
|---|
| 402 |
|
|---|
| 403 | # create an instace of each of the classes
|
|---|
| 404 | # and make it globally known, i.e. known to the Python interpreter
|
|---|
| 405 | # all the ServerClass instances are collected in a list
|
|---|
| 406 | # so one can get a quick overview --> print dims
|
|---|
| 407 | print 'creating an instance of each FACT DIM server'
|
|---|
| 408 |
|
|---|
| 409 | dims = []
|
|---|
| 410 | new_instance = None
|
|---|
| 411 | for server_name in servers:
|
|---|
| 412 | if server_name == 'DIS_DNS':
|
|---|
| 413 | continue
|
|---|
| 414 | new_instance = getattr(sys.modules["fact_dim_servers"], server_name)(server_name, services)
|
|---|
| 415 | dims.append( new_instance )
|
|---|
| 416 | globals()[server_name.lower()] = new_instance
|
|---|
| 417 | del new_instance
|
|---|
| 418 |
|
|---|
| 419 | print '.... fact DIM servers are ready to use'
|
|---|
| 420 | print '-'*70
|
|---|
| 421 | print
|
|---|
| 422 |
|
|---|
