def serve(self):
DEBUG(self.options.classpath)
# redirect stdout/stderr to a ZMQ socket
self.sysout = sys.stdout
self.syserr = sys.stderr
try:
context = zmq.Context()
socket = context.socket(zmq.PUB)
DEBUG('binding output to ' + self.options.out_url)
socket.bind(self.options.out_url)
sys.stdout = OutStream(socket, 'stdout')
sys.stderr = sys.stdout
except Exception:
print >> self.sysout, \
'<<<%s>>> ZMQServer -- setup on %s failed:' \
% (os.getpid(), self.options.out_url)
traceback.print_exc(file=self.sysout)
sys.exit(1)
try:
self.obj = self.ctor()
DEBUG('obj=' + str(self.obj))
ZmqCompWrapper.serve(self.obj,
rep_url=self.options.rep_url,
pub_url=self.options.pub_url)
except Exception:
print >> self.sysout, \
'<<<%s>>> ZMQServer -- wrapper failed:' % os.getpid()
traceback.print_exc(file=self.sysout)
sys.exit(1)
class ZMQServer(object):
''' wraps an an openmdao object with ZMQ and runs it as a server
'''
def __init__(self, options):
self.options = options
parts = self.options.classpath.split('.')
modpath = '.'.join(parts[:-1])
__import__(modpath)
try:
mod = sys.modules[modpath]
self.ctor = getattr(mod, parts[-1])
except KeyError:
print "ZMQServer can't locate %s" % self.options.classpath
def serve(self):
DEBUG(self.options.classpath)
# redirect stdout/stderr to a ZMQ socket
try:
context = zmq.Context()
socket = context.socket(zmq.PUB)
DEBUG('binding output to ' + self.options.out_url)
socket.bind(self.options.out_url)
self.sysout = sys.stdout
self.syserr = sys.stderr
sys.stdout = OutStream(socket, 'stdout')
sys.stderr = sys.stdout
except Exception, err:
print err, sys.exc_info()
self.obj = self.ctor()
DEBUG('obj=' + str(self.obj))
ZmqCompWrapper.serve(self.obj,
rep_url=self.options.rep_url,
pub_url=self.options.pub_url)
# redirect stdout/stderr to a ZMQ socket
try:
context = zmq.Context()
socket = context.socket(zmq.PUB)
DEBUG('binding output to '+self.options.out_url)
socket.bind(self.options.out_url)
self.sysout = sys.stdout
self.syserr = sys.stderr
sys.stdout = OutStream(socket,'stdout')
sys.stderr = sys.stdout
except Exception, err:
print err,sys.exc_info()
self.obj = self.ctor()
DEBUG('obj='+str(self.obj))
ZmqCompWrapper.serve(self.obj, rep_url=self.options.rep_url, pub_url=self.options.pub_url)
@staticmethod
def get_options_parser():
''' create a parser for command line arguments
'''
parser = OptionParser()
parser.add_option("-c", "--class", dest='classpath',
help="module path to class of top level component")
parser.add_option("-r", "--rep_url", dest="rep_url",
help="the address of the RPC proxy")
parser.add_option("-p", "--pub_url", dest="pub_url",
help="the address or the publisher")
parser.add_option("-o", "--out_url", dest="out_url",
help="the address of the output stream")
return parser