Package uk.ac.starlink.vo
Class AuxServiceFinder
- java.lang.Object
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- uk.ac.starlink.vo.AuxServiceFinder
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- All Implemented Interfaces:
TapServiceFinder
public class AuxServiceFinder extends java.lang.Object implements TapServiceFinder
TapServiceFinder implementation that uses the IVOA Registry along with an "auxiliary" labelling of tableset resources. This is a version of the scheme proposed by Markus Demleitner's IVOA Note "Discovering Data Collections Within Services", version 1.1.- Since:
- 6 Aug 2015
- Author:
- Mark Taylor
- See Also:
- Discovering Data Collections Within Services
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Nested Class Summary
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Nested classes/interfaces inherited from interface uk.ac.starlink.vo.TapServiceFinder
TapServiceFinder.Constraint, TapServiceFinder.Service, TapServiceFinder.Table, TapServiceFinder.Target
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Constructor Summary
Constructors Constructor Description AuxServiceFinder()
Constructs a default instance.AuxServiceFinder(EndpointSet regtapEndpointSet, uk.ac.starlink.util.ContentCoding coding)
Constructs an instance with custom configuration.
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Method Summary
All Methods Instance Methods Concrete Methods Modifier and Type Method Description TapServiceFinder.Service[]
readAllServices()
Reads basic metadata about all known TAP services.TapServiceFinder.Table[]
readSelectedTables(TapServiceFinder.Constraint constraint)
Locates a list of tables from a global list of all known tables served by all known TAP services that satisfy a given constraint.
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Constructor Detail
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AuxServiceFinder
public AuxServiceFinder()
Constructs a default instance.
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AuxServiceFinder
public AuxServiceFinder(EndpointSet regtapEndpointSet, uk.ac.starlink.util.ContentCoding coding)
Constructs an instance with custom configuration.- Parameters:
regtapEndpointSet
- TAP endpoints for RegTAP servicecoding
- controls HTTP-level compression during TAP queries
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Method Detail
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readAllServices
public TapServiceFinder.Service[] readAllServices() throws java.io.IOException
Description copied from interface:TapServiceFinder
Reads basic metadata about all known TAP services. May be slow.- Specified by:
readAllServices
in interfaceTapServiceFinder
- Returns:
- list of TAP services
- Throws:
java.io.IOException
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readSelectedTables
public TapServiceFinder.Table[] readSelectedTables(TapServiceFinder.Constraint constraint) throws java.io.IOException
Description copied from interface:TapServiceFinder
Locates a list of tables from a global list of all known tables served by all known TAP services that satisfy a given constraint.- Specified by:
readSelectedTables
in interfaceTapServiceFinder
- Parameters:
constraint
- object indicating the tables of interest- Returns:
- list of tables matching constraint
- Throws:
java.io.IOException
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