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<H2><A name="SCAJavaRoadmap-Web2.0Roadmap"></A>Web 2.0 Roadmap</H2>
<H3><A name="SCAJavaRoadmap-JSONRPC"></A>JSON-RPC</H3>
<P><B>Scenarios:</B></P>
<UL>
<LI>A client application invoke a SCA Service using JSON-RPC and the invocation returns a business exception. <IMG class="emoticon" src="https://cwiki.apache.org/confluence/images/icons/emoticons/check.gif" height="16" width="16" align="absmiddle" alt="" border="0">
<UL>
<LI>e.g Empty catalog throws a Busines Exception. Business Exception should properly propagate and display nicely to client.</LI>
</UL>
</LI>
<LI>A client application invoke a SCA Service using JSON-RPC and the invocation returns a runtime exception. <IMG class="emoticon" src="https://cwiki.apache.org/confluence/images/icons/emoticons/check.gif" height="16" width="16" align="absmiddle" alt="" border="0">
<UL>
<LI>e.g Try to retrieve catalog items from a catalog service that is un-available. Runtime exception properly propagate and display nicely to client.</LI>
</UL>
</LI>
<LI>A client application needs to access a service exposed trough JSON-RPC binding that requires authentication.
<UL>
<LI>e.g make sure if nobody can get to the catalog if it's not authenticated</LI>
</UL>
</LI>
</UL>
<P><B>Features/JIRAS</B></P>
<UL>
<LI>Exceptions not properly reported to client by JSONRPC binding (TUSCANY-1961) <IMG class="emoticon" src="https://cwiki.apache.org/confluence/images/icons/emoticons/check.gif" height="16" width="16" align="absmiddle" alt="" border="0"></LI>
<LI>Support for security (this will require exploratory work to understand what SCA security policies make sense to implement) (TUSCANY-2394 )</LI>
<LI>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 ) <IMG class="emoticon" src="https://cwiki.apache.org/confluence/images/icons/emoticons/check.gif" height="16" width="16" align="absmiddle" alt="" border="0"></LI>
<LI>Better runtime exception reporting, runtime exceptions occurring as part of a JSON-RPC interaction should be properly reported to the JavaScript client. (TUSCANY-2394) <IMG class="emoticon" src="https://cwiki.apache.org/confluence/images/icons/emoticons/check.gif" height="16" width="16" align="absmiddle" alt="" border="0"></LI>
<LI>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) <IMG class="emoticon" src="https://cwiki.apache.org/confluence/images/icons/emoticons/check.gif" height="16" width="16" align="absmiddle" alt="" border="0"></LI>
<LI>Build some samples that consume publicly available JSON services (e.g from programmableweb, or yahoo)</LI>
</UL>
<H3><A name="SCAJavaRoadmap-ATOM"></A>ATOM</H3>
<P><B>Scenarios</B></P>
<P><B>Features/JIRAS</B></P>
<UL>
<LI>Complete support for ATOM API
<UL>
<LI>Analyze specification gaps</LI>
<LI>Complete support for location header</LI>
<LI>Full support for lastmodified in HTTP headers and etags <IMG class="emoticon" src="https://cwiki.apache.org/confluence/images/icons/emoticons/check.gif" height="16" width="16" align="absmiddle" alt="" border="0">
<UL>
<LI>needs to involve application logic, to properly find the lastmodified data...</LI>
</UL>
</LI>
</UL>
</LI>
<LI>Support for postMedia and putMedia, including the ability to stream that content in the target application component</LI>
<LI>Support for security (this will require exploratory work to understand what SCA security policies make sense to implement)
<UL>
<LI>Provide security support for verb actions (e.g. delete)</LI>
<LI>ATOM pub users often need to login. Google GDATA supports SSO</LI>
<LI>Provide support for Authentication|Encryption|Signatures ???</LI>
</UL>
</LI>
<LI>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. <IMG class="emoticon" src="https://cwiki.apache.org/confluence/images/icons/emoticons/check.gif" height="16" width="16" align="absmiddle" alt="" border="0"></LI>
<LI>Ability to negotiate content types (XML, JSON etc) and use the corresponding Tuscany data bindings to provide data with the requested content type <IMG class="emoticon" src="https://cwiki.apache.org/confluence/images/icons/emoticons/check.gif" height="16" width="16" align="absmiddle" alt="" border="0"></LI>
<LI>Enhance performance on low-bandwidth by providing gZipped contents enabled by http headers</LI>
<LI>Improve the client side programming model by researching available JavaScript Atom API or investigate creating one.<IMG class="emoticon" src="https://cwiki.apache.org/confluence/images/icons/emoticons/check.gif" height="16" width="16" align="absmiddle" alt="" border="0"></LI>
<LI>Integrate Atom binding with persistence repository (e.g database and implementation.data.xml)
<UL>
<LI>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.)</LI>
</UL>
</LI>
<LI>ATOM workspace support</LI>
</UL>
<P><B>References:</B></P>
<UL>
<LI>Atom publish protocol : <A href="http://tools.ietf.org/html/rfc5023" class="external-link" rel="nofollow">http://tools.ietf.org/html/rfc5023</A></LI>
<LI>Atom syndcation protocol : <A href="http://tools.ietf.org/html/rfc4287" class="external-link" rel="nofollow">http://tools.ietf.org/html/rfc4287</A></LI>
</UL>
<H3><A name="SCAJavaRoadmap-Widget"></A>Widget</H3>
<P><B>Scenarios</B></P>
<P><B>Features/JIRAS</B></P>
<UL>
<LI>Support references wiring to services from multiple hosts/ports (cross domain support using on demand js pattern)</LI>
<LI>Add support for other bindings (e.g DWR)</LI>
<LI>Support widget implementation over web-app</LI>
</UL>
<UL>
<LI>
<UL>
<LI>Discuss possible deprecation of scaDomain.js</LI>
</UL>
</LI>
<LI>Enable support for google widgets (using shindig)</LI>
<LI>Upgrade to latest open ajax (tutorial)</LI>
</UL>
<H2><A name="SCAJavaRoadmap-Sample%2CScenariosandTutorial"></A>Sample, Scenarios and Tutorial</H2>
<UL>
<LI>Integrate implementation-data-xml to provide data feeds.
<UL>
<LI>Use store tutorial to drive this item</LI>
</UL>
</LI>
</UL>
<UL>
<LI>PhotoGallery scenario ?</LI>
</UL>
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