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

Field Summary

Fields

Modifier and Type	Field	Description
static String	URI	The SPARQL function URI.

Fields inherited from class fr.mines_stetienne.ci.sparql_generate.iterator.IteratorStreamFunctionBase

arguments

Constructor Summary

Constructors

Constructor	Description
ITER_HTTPGet()

Method Summary

Modifier and Type	Method	Description
void	checkBuild(ExprList args)	Partially checks if the iterator function can be executed with the given arguments.
void	exec(List<NodeValue> args, Consumer<List<List<NodeValue>>> listNodeValues)	IteratorFunction call to a list of evaluated argument values.

Methods inherited from class fr.mines_stetienne.ci.sparql_generate.iterator.IteratorStreamFunctionBase

build, exec, getContext

Methods inherited from class java.lang.Object

clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

Field Detail

URI

public static final String URI

The SPARQL function URI.

See Also:

Constant Field Values

Constructor Detail

ITER_HTTPGet

public ITER_HTTPGet()

Method Detail

checkBuild

public void checkBuild(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<NodeValue> args,
                 Consumer<List<List<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