Nexjexpress/JSON Adapter

Project Goal

Develope an adapter to expose NexJ Express Server objects using JSON

Current Status

Phase 10: Apply Changes as per Code Review 4
Ongoing...

Project Phases

Phase 1: Design Proposal (Done)

• Get requirements from NexJ
• Incorporate requirements from NexJ into Design of JSON Adapater
• Proposal proposal for review, make changes as by NexJ until approved

Phase 2: Coding (Done)

• JSONMarshaller
  • Develop marshaller to transform NexJ Server Objects into JSON representation

• JSONUnmarshaller
  • Develop an marshaller to transform JSON representation into NexJ Server Objects

• JSON Server
  • Develop a JSON Server to expose NexJ Server objects in JSON

• Demo application that interacts with the Server using JSON
  • Read Server Objects
  • Update Server Objects
  • Create Server objects

Phase 3: Code Review 1 (Done)

• Send patch to NexJ for review

Phase 4: Make Changes as per Code Review 1 (Done)

• Refactor JSONSever and TextServer to inherit from GenericCharacterStreamHTTPServer
• Optimize marshaling of nested Pair objects
• Rename variables and methods as per NexJ Developer's Guide

Phase 5: Code Review 2(Done)

• Send patch to NexJ for review

Phase 6: Apply Changes per Code Review 2 (Done)

• Minor Clean Up
  • Removed unnecessary files
  • Ensure all files use CRLF line-endings
• Add Servlet Mapping to cert/web.xml
• GenericCharacterStreamServer
  • Use abstract String getType() for creating error codes
  • Use getLogger() for lazy initialization of logger
• TextServer
  • Members should be protected
• JSONWriter
  • Methods names should start with "write"
• JSONMarshaller
  • Remove unused methods
  • Remove visReferencable()</code>, do lookup in TransferObject Marshaller
• JSONUnmarshaller
  • Use JSONLookup to find unmarshllers
  • Create DetachableByteArrayOutputStream
  • Change logic in Base64Util.decode(String)
  • Use Base64Util.decode(String) to decode 64 streams
  • Only TO unmarshaller should use remove() otherwise use get() on m_jsonMap
  • Change instances of Collection.toArray() to use toArray(new Object[size])

Phase 7: Code Review 3 (Done)

• Send patch to NexJ for review

Phase 8: Apply Changes per Code Review 3 (DONE)

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The JSON Adapter Project has been successfully completed

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Links

JSON
http://www.json.org