SCA Java Roadmap (TUSCANY) edited by Luciano Resende
Page: http://cwiki.apache.org/confluence/display/TUSCANY/SCA+Java+Roadmap
Changes:
http://cwiki.apache.org/confluence/pages/diffpagesbyversion.action?pageId=89958&originalVersion=1&revisedVersion=2
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h2.Web 2.0 Roadmap
h3.JSON-RPC
*Scenarios:*
* A client application invoke a SCA Service using JSON-RPC and the invocation
returns a business exception.
** e.g Empty catalog throws a Busines Exception. Business Exception should
properly propagate and display nicely to client.
* A client application invoke a SCA Service using JSON-RPC and the invocation
returns a runtime exception.
** e.g Try to retrieve catalog items from a catalog service that is
un-available. Runtime exception properly propagate and display nicely to client.
* A client application needs to access a service exposed trough JSON-RPC
binding that requires authentication.
** e.g make sure if nobody can get to the catalog if it's not authenticated
*Features/JIRAS*
* Exceptions not properly reported to client by JSONRPC binding (TUSCANY-1961)
* Support for security (this will require exploratory work to understand what
SCA security policies make sense to implement) (TUSCANY-2394 )
* Business Exception reporting, business exceptions raised by a service should
be transported to the client through JSON and reported to the client as proper
JavaScript business exceptions (TUSCANY-2394 )
* Better runtime exception reporting, runtime exceptions occurring as part of a
JSON-RPC interaction should be properly reported to the JavaScript client.
(TUSCANY-2394)
* Complete data binding support, a set of test cases should be written to make
sure that the POJO and JAXB patterns supported in Java components have a proper
mapping to JSON and that the application developer can easily understand the
corresponding representation of these objects in JavaScript. (TUSCANY-2394)
* Build some samples that consume publicly available JSON services (e.g from
programmableweb, or yahoo)
h3.ATOM
*Scenarios*
*Features/JIRAS*
* Complete support for ATOM API
** Analyze specification gaps
** Complete support for location header
** Full support for lastmodified in HTTP headers and etags
*** needs to involve application logic, to properly find the lastmodified
data...
* Support for postMedia and putMedia, including the ability to stream that
content in the target application component
* Support for security (this will require exploratory work to understand what
SCA security policies make sense to implement)
** Provide security support for verb actions (e.g. delete)
** ATOM pub users often need to login. Google GDATA supports SSO
** Provide support for Authentication|Encryption|Signatures ???
* Enhanced error reporting, mapping errors like resource not found to HTTP 404.
Other errors might be mapped to HTTP 500 with proper exception in the message
body.
* Ability to negotiate content types (XML, JSON etc) and use the corresponding
Tuscany data bindings to provide data with the requested content type
* Enhance performance on low-bandwidth by providing gZipped contents enabled by
http headers
* Improve the client side programming model by researching available JavaScript
Atom API or investigate creating one.
* Integrate Atom binding with persistence repository (e.g database and
implementation.data.xml)
** investigate how to handle relationships (e.g When you have a customer that
owns multiple accounts, you can define HREF to a account feed, but how do you
handle that sub-set of accounts that the customer owns.)
* ATOM workspace support
*References:*
* Atom publish protocol : http://tools.ietf.org/html/rfc5023
* Atom syndcation protocol : http://tools.ietf.org/html/rfc4287
h3.Widget
*Scenarios*
*Features/JIRAS*
* Support references wiring to services from multiple hosts/ports (cross domain
support using on demand js pattern)
* Add support for other bindings (e.g DWR)
* Support widget implementation over web-app
** Discuss possible deprecation of scaDomain.js
* Enable support for google widgets (using shindig)
* Upgrade to latest open ajax (tutorial)
h2.Sample, Scenarios and Tutorial
* Integrate implementation-data-xml to provide data feeds.
** Use store tutorial to drive this item
* PhotoGallery scenario ?
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