Registry (Astro Runtime 1.3.2 API)

Method Summary
`URI`	`getFallbackSystemRegistryEndpoint()` Access the endpoint of the fallback system registry
`RegistryService`	`getIdentity()` Access the resource that describing the system registry itself.
`Resource`	`getResource(URI id)` Retrieve a named resource from the registry.
`URI`	`getSystemRegistryEndpoint()` Access the endpoint of the system registry
`Resource[]`	`keywordSearch(String keywords, boolean orValues)` Perform a keyword search.
`Resource[]`	`search(String srql)` Perform a search using the query language used by VOExplorer SmartLists (SRQL) Search for IR Redshift resources (Python) # connect to the AR from xmlrpc import Server from os.path import expanduser ar = Server(file(expanduser('~/.astrogrid-desktop')).next().strip() +'xmlrpc') #call this function rs = ar.ivoa.registry.search("ucd = redshift AND waveband = infrared") #see what we've got print len(rs) #list first 10 identifiers for r in rs[:10]: print r['id'] The output is
`String`	`toXQuery(String srql)` Translate a SRQL query (as used by VOExplorer SmartLists) into an equivalent XQuery
`Resource[]`	`xquerySearch(String xquery)` Search the registry using an XQuery.
`Document`	`xquerySearchXML(String xquery)` Search the registry using an XQuery, returning results as XML.

This method can accept an arbitrary XQuery, unlike Registry.xquerySearch(String), which requires that the XQuery return a list of VOResource elements.

Python Example

# connect to the AR
from xmlrpc import Server
from os.path import expanduser
ar = Server(file(expanduser('~/.astrogrid-desktop')).next().strip() +'xmlrpc')
 #call this function
xquery ="""
    <ssap-wavebands> 
         {
         (:find all spectral services :)
          let $ssap := //vor:Resource[capability/@standardID="ivo://ivoa.net/std/SSA"]          
          (: find the distinct set of wavebands these services cover  (no duplicates) :)
          for $waveband in distinct-values($ssap/coverage/waveband)
          order by $waveband
          (: print each waveband in turn :)
          return <band name="{data($waveband)}">
                 {
                 (: list IDs of all services that cover this band :)
                   for $r in $ssap[coverage/waveband=$waveband]
                   return $r/identifier
                 }
                 </band> 
         }
      </ssap-wavebands>
         """   
xml = ar.ivoa.registry.xquerySearchXML(regEndpoint,xquery)

<ssap-wavebands>
   <band name="EUV">
       <identifier>ivo://iap.fr/FUSE/SSA</identifier>
       <identifier>ivo://www.g-vo.org/ssa.service.tmap</identifier>
   </band>
   <band name="Infrared">
       <identifier>ivo://archive.eso.org/ESO-SAF-SSAP</identifier>
       <identifier>ivo://basebe.obspm.fr/bess0.1</identifier>
       ...
   </band>
   <band name="Millimeter">
       <identifier>ivo://svo.laeff/models/dalessio</identifier>
       <identifier>ivo://voparis.obspm.gepi/BeStars/BeSS/SSAP</identifier>
   </band>
   <band name="Optical">
       <identifier>ivo://archive.eso.org/ESO-SAF-SSAP</identifier>
       <identifier>ivo://basebe.obspm.fr/bess0.1</identifier>
       ...
   </band>
   <band name="Radio">
       <identifier>ivo://obspm.fr/SSA_HIG</identifier>
       <identifier>ivo://voparis.obspm.gepi/BeStars/BeSS/SSAP</identifier>
   </band>
   <band name="UV">
       <identifier>ivo://archive.eso.org/ESO-SAF-SSAP</identifier>
       <identifier>ivo://basebe.obspm.fr/bess0.1</identifier>
       ...
   </band>
   <band name="X-ray">
       <identifier>ivo://svo.iaa/models/SSP/Xray</identifier>
       <identifier>ivo://www.g-vo.org/ssa.service.tmap</identifier>
   </band>
</ssap-wavebands>

org.astrogrid.acr.ivoa Interface Registry

search

keywordSearch

toXQuery

getResource

xquerySearch

xquerySearchXML

getIdentity

getSystemRegistryEndpoint

getFallbackSystemRegistryEndpoint

org.astrogrid.acr.ivoa
Interface Registry