ODS Programmers Guide Web Services

Table of Contents

ODS GData Service

Virtuoso's support for the GData protocol is exposed at a higher application user lever via the ODS suite of applications. This isn't the only entry point for using GData with Virtuoso; it is simply the interface level closest to the typical user.

Search Service Endpoint Format

GData services like all web services are exposed via invocation endpoints. The ODS endpoint formats are as follows:

http://host:port/dataspaces/GData/[<app-realm>[,<app-realm>]]/[-/<tag-expression>]?q=<text-query>&alt=<output-format>

• text-query: a string containing words to be matched against the application's searchable content
• app-realm: a comma-separated list of application names for searching. This specifies the application type, but does not scope the search to any single wiki or blog. If not specified, the search will be over all ODS applications and accounts. The following values are supported: 'feeds', 'weblog', 'wiki', 'briefcase', 'mail', 'bookmark', 'photos', 'community', and 'news'. For example:
  

  
  http://host:port/dataspaces/GData?q=virtuoso, will search across ODS for content matching pattern: 'virtuoso' 
  
  http://host:port/dataspaces/GData/weblog?q=virtuoso, will search weblog data space for content matching pattern: 'virtuoso' 
  
  http://host:port/dataspaces/GData/weblog,feeds?q=virtuoso will search weblog and feed subscriptions data spaces content matching pattern:  'virtuoso.'
  

  
  
• tag-expression: tags connected with '|' (OR) or '/' (AND). For example:
  

  
  http://host:port/dataspaces/GData/-/tag1/tag2 - will search all ODS application data having tags 'tag1' and 'tag2'
  http://host:port/dataspaces/GData/-/tag1|tag2 - will search all ODS application data having tags 'tag1' or 'tag2'
  http://host:port/dataspaces/GData/weblog/-/tag1|tag2 - will search weblog posts having tags 'tag1' or 'tag2'
  

  
  
• output-format: Which kind of feed format to be returned; 'atom' or 'rss'. If not given, ATOM is the default.
  

  
  http://host:port/dataspaces/GData/weblog?q=virtuoso&alt=rss, will return blog posts containing the word 'virtuoso' in the RSS 2.0 feed format.
  http://host:port/dataspaces/GData/weblog?q=virtuoso ,  will return blog posts containing the word 'virtuoso'  in the  Atom 1.0 feed format.
  

  
  

Reference

TABLE 1: GData endpoints by application

Application	Endpoint URL	Detailed documentation
ODS-Weblog		ODSWeblogProgrammersGuideWebServices
ODS-Briefcase	http://host:port/dataspace/services/briefcase/services.wsdl	ODSBriefcaseProgrammersGuideWebServices
ODS-Gallery		ODSGalleryProgrammersGuideWebServices
ODS-Wiki		ODSWikiProgrammersGuideWebServices
ODS-Community		ODSCommunityProgrammersGuideWebServices?
ODS-Feed Manager	*N/A*	ODSFeedsProgrammersGuideWebServices?
ODS-Mail	*N/A*	ODSMailProgrammersGuideWebServices?
ODS-Bookmarks	*N/A*	ODSBookmarkProgrammersGuideWebServices
ODS-Discussions		ODSDiscussionsProgrammersGuideWebServices?
ODS-Polls	*N/A*	ODSPollsProgrammersGuideWebServices?

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