Package ai.chatur.cortex.spring.graph

Class GraphController

java.lang.Object

ai.chatur.cortex.spring.graph.GraphController

@Controller
public class GraphController
extends Object

Web UI for browsing the knowledge graph: the class hierarchy, the instances of a class, and everything known about a single resource.

Constructor Summary

Constructors

Constructor	Description
GraphController(ai.chatur.cortex.CortexOntology ontology, ai.chatur.cortex.CortexQuery query)	Creates the controller.

Method Summary

Modifier and Type	Method	Description
String	describeUri(String uri, org.springframework.ui.Model model)	Renders everything known about a single resource, including statements derived by inference.
String	getAssertions(String type, org.springframework.ui.Model model)	Renders the ontology's class hierarchy, or the instances of a single class when type is given.

Methods inherited from class java.lang.Object

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

Constructor Details

GraphController

public GraphController(ai.chatur.cortex.CortexOntology ontology,
 ai.chatur.cortex.CortexQuery query)

Creates the controller.

Parameters:

ontology - the ontology role used to render the class hierarchy

query - the query role used to list instances and describe a resource

Method Details

describeUri

@GetMapping(value="/describe",
            params="uri")
public String describeUri(@RequestParam("uri")
 String uri,
 org.springframework.ui.Model model)

Renders everything known about a single resource, including statements derived by inference.

Parameters:

uri - the identifier of the resource, as returned by getAssertions(String, Model), or a full URI

model - receives subject (the requested identifier) and statements (the ProvenancedStatements describing it)

Returns:

the describe view name

getAssertions

@GetMapping("/assertions")
public String getAssertions(@RequestParam(value="type",required=false)
 String type,
 org.springframework.ui.Model model)

Renders the ontology's class hierarchy, or the instances of a single class when type is given.

Parameters:

type - the URI of the ontology class whose instances to list, or null to render the class hierarchy

model - when type is null, receives classes (the OntologyClass hierarchy); otherwise receives type and instances (the matching Terms)

Returns:

the classes view name when type is null, otherwise the instances view name