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# **********************************************************************
#
# Copyright (c) 2003-present ZeroC, Inc. All rights reserved.
#
# This copy of Ice is licensed to you under the terms described in the
# ICE_LICENSE file included in this distribution.
#
# **********************************************************************
import threading, Ice
class CallQueue(threading.Thread):
def __init__(self):
threading.Thread.__init__(self)
self._condVar = threading.Condition()
self._queue = []
self._destroy = False
def add(self, call):
with self._condVar:
self._queue.append(call)
self._condVar.notify()
def destroy(self):
with self._condVar:
self._destroy = True
self._condVar.notify()
def run(self):
while True:
with self._condVar:
while len(self._queue) == 0 and not self._destroy:
self._condVar.wait()
if self._destroy:
break
call = self._queue.pop()
call.execute()
class BlobjectCall(object):
def __init__(self, proxy, future, inParams, curr):
self._proxy = proxy
self._future = future
self._inParams = inParams
self._curr = curr
def execute(self):
proxy = self._proxy
if len(self._curr.facet) > 0:
proxy = self._proxy.ice_facet(self._curr.facet)
if "_fwd" in self._curr.ctx and self._curr.ctx["_fwd"] == "o":
proxy = proxy.ice_oneway()
try:
ok, out = proxy.ice_invoke(self._curr.operation, self._curr.mode, self._inParams, self._curr.ctx)
self._future.set_result((ok, out))
except Ice.Exception as e:
self._future.set_exception(e)
else:
f = proxy.ice_invokeAsync(self._curr.operation, self._curr.mode, self._inParams, self._curr.ctx)
f.add_done_callback(self.done)
def done(self, future):
try:
(ok, bytes) = future.result()
self._future.set_result((ok, bytes))
except Exception as ex:
self._future.set_exception(ex)
class BlobjectAsyncI(Ice.BlobjectAsync):
def __init__(self):
self._queue = CallQueue()
self._queue.start()
self._objects = {}
self._lock = threading.Lock()
def ice_invoke(self, inParams, curr):
f = Ice.Future()
with self._lock:
proxy = self._objects[curr.id]
assert proxy
self._queue.add(BlobjectCall(proxy, f, inParams, curr))
return f
def add(self, proxy):
with self._lock:
self._objects[proxy.ice_getIdentity()] = proxy.ice_facet("").ice_twoway().ice_router(None)
def destroy(self):
with self._lock:
self._queue.destroy()
self._queue.join()
class BlobjectI(Ice.Blobject):
def __init__(self):
self._objects = {}
self._lock = threading.Lock()
def ice_invoke(self, inParams, curr):
with self._lock:
proxy = self._objects[curr.id]
if len(curr.facet) > 0:
proxy = proxy.ice_facet(curr.facet)
try:
if "_fwd" in curr.ctx and curr.ctx["_fwd"] == "o":
proxy = proxy.ice_oneway()
return proxy.ice_invoke(curr.operation, curr.mode, inParams, curr.ctx)
else:
return proxy.ice_invoke(curr.operation, curr.mode, inParams, curr.ctx)
except Ice.Exception as e:
raise
def add(self, proxy):
with self._lock:
self._objects[proxy.ice_getIdentity()] = proxy.ice_facet("").ice_twoway().ice_router(None)
def destroy(self):
pass
class ServantLocatorI(Ice.ServantLocator):
def __init__(self, blobject):
self._blobject = blobject
def locate(self, current):
return self._blobject # and the cookie
def finished(self, current, object, cookie):
pass
def deactivate(self, s):
pass
class RouterI(Ice.Router):
def __init__(self, communicator, sync):
self._adapter = communicator.createObjectAdapterWithEndpoints("forward", "default -h 127.0.0.1")
if sync:
self._blobject = BlobjectI()
else:
self._blobject = BlobjectAsyncI()
self._adapter.addServantLocator(ServantLocatorI(self._blobject), "")
self._blobjectProxy = self._adapter.addWithUUID(self._blobject)
proxy = Ice.RouterPrx.uncheckedCast(self._adapter.addWithUUID(self))
communicator.setDefaultRouter(proxy)
self._adapter.activate()
def useSync(self, sync):
self._locator.useSync(sync)
def getClientProxy(self, current):
return (self._blobjectProxy, True)
def getServerProxy(self, current):
assert(False)
def addProxies(self, proxies, current):
for p in proxies:
self._blobject.add(p)
def destroy(self):
self._blobject.destroy()
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