I'm trying to write a RMI <-> XMLRPC bridge.
I want two bits of functionality:
a RMI server that receives RMI requests
and transforms then into XMLRPC calls;
a XMLRPC server that a receives XMLRPC calls
and turns them into RMI requests.
I have a non-Java piece of monitoring code that
can speak XMLRPC that I want to put between my
RMI client and server like so:
RMI client <-> RMI server/XMLRPC client <-> black box <-> XMLRPC
server/RMI client <-> RMI Server.
My idea was to use the Proxy class.
I tested this out by writing a simple RMILogger
that you put between your client and server and
it simply writes the parameters and result to System.err:
LoggingProxy http://pastie.caboo.se/7051
Rmi http://pastie.caboo.se/7080
RMILogger http://pastie.caboo.se/7081
Worked fine.
Then I built a Calculator example in RMI:
Calculator http://pastie.caboo.se/7054
CalculatorImpl http://pastie.caboo.se/7055
CalculatorInterpreter http://pastie.caboo.se/7056
CalculatorRMIServer http://pastie.caboo.se/7057
CalculatorRMIClient http://pastie.caboo.se/7082
Worked fine.
Then I built a Calculator example in XMLRPC:
XmlRpc http://pastie.caboo.se/7083
CalculatorXMLRPCServer http://pastie.caboo.se/7084
CalculatorXMLRPCClient http://pastie.caboo.se/7086
Worked fine.
Then I tried to write RmiToRpcAdaptor:
RmiToRpcAdapter http://pastie.caboo.se/7090
I get:
% java RmiToRpcAdapter Evaluator 127.0.0.1 8000 Calculator
Exception in thread "main" java.rmi.MarshalException: error
marshalling arguments; nested exception is:
java.io.NotSerializableException:
org.apache.xmlrpc.client.util.ClientFactory$1
at sun.rmi.registry.RegistryImpl_Stub.rebind(Unknown Source)
at java.rmi.Naming.rebind(Naming.java:160)
at Rmi.createServer(Rmi.java:28)
at RmiToRpcAdapter.main(RmiToRpcAdapter.java:27)
Caused by: java.io.NotSerializableException:
org.apache.xmlrpc.client.util.ClientFactory$1
at java.io.ObjectOutputStream.writeObject0
(ObjectOutputStream.java:1075)
at java.io.ObjectOutputStream.defaultWriteFields
(ObjectOutputStream.java:1369)
at java.io.ObjectOutputStream.writeSerialData
(ObjectOutputStream.java:1341)
at java.io.ObjectOutputStream.writeOrdinaryObject
(ObjectOutputStream.java:1284)
at java.io.ObjectOutputStream.writeObject0
(ObjectOutputStream.java:1073)
at java.io.ObjectOutputStream.defaultWriteFields
(ObjectOutputStream.java:1369)
at java.io.ObjectOutputStream.writeSerialData
(ObjectOutputStream.java:1341)
at java.io.ObjectOutputStream.writeOrdinaryObject
(ObjectOutputStream.java:1284)
at java.io.ObjectOutputStream.writeObject0
(ObjectOutputStream.java:1073)
at java.io.ObjectOutputStream.defaultWriteFields
(ObjectOutputStream.java:1369)
at java.io.ObjectOutputStream.writeSerialData
(ObjectOutputStream.java:1341)
at java.io.ObjectOutputStream.writeOrdinaryObject
(ObjectOutputStream.java:1284)
at java.io.ObjectOutputStream.writeObject0
(ObjectOutputStream.java:1073)
at java.io.ObjectOutputStream.writeObject
(ObjectOutputStream.java:291)
... 4 more
It apparently wants to serialize ClientFactory$1.
But I don't have control over
org.apache.xmlrpc.client.util.ClientFactory.
Am I SOL?
Suggestions welcome.
Guy
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