Make a fake Pfeiffer device for testing the script context driver

This driver controls the needle valve on the Oxford Mercury

site_ansto/instrument/TEST_SICS/fakePfeiffer/tpg261/PfeifferFactory.py

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+# vim: ft=python ts=8 sts=4 sw=4 expandtab autoindent smartindent nocindent
+# Fake Pfeiffer Temperature Controller Factory
+#
+# Author: Douglas Clowes 2014
+#
+from twisted.internet.protocol import ServerFactory
+
+class PfeifferFactory(ServerFactory):
+    """Factory object used by the Twisted Infrastructure to create a Protocol
+       object for incomming connections"""
+
+    protocol = None
+
+    def __init__(self, theProtocol, theDevice, theTerminator = "\r\n"):
+        print PfeifferFactory.__name__, "ctor"
+        self.protocol = theProtocol
+        self.device = theDevice
+        self.term = theTerminator
+        self.numProtocols = 0
+
+    def buildProtocol(self, addr):
+        p = self.protocol(self.device, self.term)
+        p.factory = self
+        return p
+
+if __name__ == '__main__':
+    class TestProtocol:
+        def __init__(self, theDevice, theTerm = "\r\n"):
+          self.device = theDevice
+          self.response = ""
+          self.term = theTerm
+
+    class TestDevice:
+        def __init__(self):
+            pass
+
+    new_factory = PfeifferFactory(TestProtocol, TestDevice, "\r\n");
+    new_protocol = new_factory.buildProtocol("address")
+    print "Factory:   ", new_factory
+    print "  .protocol", new_factory.protocol
+    print "  .device  ", new_factory.device
+    print "  .num_prot", new_factory.numProtocols
+    print "  .term    ", new_factory.term
+    print "Protocol:  ", new_protocol
+    print "  .device  ", new_protocol.device
+    print "  .response", new_protocol.response
+    print "  .term    ", new_protocol.term