Package fr.mines_stetienne.ci.sparql_generate.iterator.library

Class ITER_HTTPGet

java.lang.Object
fr.mines_stetienne.ci.sparql_generate.iterator.IteratorStreamFunctionBase
fr.mines_stetienne.ci.sparql_generate.iterator.library.ITER_HTTPGet
All Implemented Interfaces:
IteratorFunction
public class ITER_HTTPGet extends IteratorStreamFunctionBase
Iterator function iter:HTTPGet binds the responses of regular GET operations to a HTTP(s) URL.

See Live example

  • Param 1: (a URI or String) the Web URI where regular GET operations are operated;
  • Param 2: (a positive Integer) the number of seconds between successive calls to the Web API;
  • Param 3 (optional): the total number of calls to make (a positive Integer). If not provided, the iterator never ends.

Example:

The clause

ITERATOR iter:HTTPGet(<https://example.org/room1/temperature>,60) AS ?temperature

will fetch the temperature of room 1 every 60 seconds, indefinetely.

Since:
2018-09-27
Author:
El-Mehdi Khalfi invalid input: '<'el-mehdi.khalfi at emse.fr>

  • Field Details

  • Constructor Details

    • ITER_HTTPGet

      public ITER_HTTPGet()

  • Method Details

    • checkBuild

      public void checkBuild(org.apache.jena.sparql.expr.ExprList args)
      Description copied from class: IteratorStreamFunctionBase
      Partially checks if the iterator function can be executed with the given arguments.
      Specified by:
      checkBuild in class IteratorStreamFunctionBase
      Parameters:
      args - -

    • exec

      public void exec(List<org.apache.jena.sparql.expr.NodeValue> args, Consumer<List<List<org.apache.jena.sparql.expr.NodeValue>>> listNodeValues)
      Description copied from class: IteratorStreamFunctionBase
      IteratorFunction call to a list of evaluated argument values.
      Specified by:
      exec in class IteratorStreamFunctionBase
      Parameters:
      args - -
      listNodeValues - - where to emit collections of nodevalues