Package org.apache.jena.permissions

Class SecurityEvaluatorAssembler

java.lang.Object

org.apache.jena.assembler.assemblers.AssemblerBase

org.apache.jena.permissions.SecurityEvaluatorAssembler

All Implemented Interfaces:

Assembler, AssemblerConstants

public class SecurityEvaluatorAssembler
extends AssemblerBase
implements Assembler, AssemblerConstants

A simple assembler for a SecurityEvaluator

This assembler load the specified class, locates the first constructor that accepts the number of arguments in the assembler file, and calls it passing the arguments. Generally the result of this assembler is passed to a sec:Model construction.

• The evaluator must have one and only one public constructor that takes the number of arguments specified in the assembler file.
• The evaluator may have more constructors but they may not have the same number of arguments as specified in the assembler file.
• The arguments must be specified in the assembler file in the order that they should be passed to the constructor.

Literal arguments are converted to their data type before calling the constructor. For example "13"^^xsd:int will be converted to an Integer with the value of 13.

The assembler file should include the following

 prefix xsd:        <http://www.w3.org/2001/XMLSchema#>

 <> ja:loadClass    "org.apache.jena.security.SecuredAssembler" .

 sec:Model rdfs:subClassOf ja:NamedModel .

 

The model definition should include something like.

 ex:myEvaluator a sec:Evaluator ;
    sec:args [ rdf:_1 "argument 1 for my evaluator constructor" ;
               rdf:_2 "13"^^xsd:int ; ];
    sec:evaluatorClass "evaluatorClassname";
    .
 

Terms used in above example:

my:secEvaluator

The security evaluator as referenced in the assembler file.

sec:Evaluator

Identifies my:secEvaluator as a SecurityEvaluator

sec:args

Identifies the argument list

rdf:_1

The first argument

rdf:_2

The second argument (an integer in this case

sec:evaluatorClass

The fully qualified name of the SecurityEvaluator class to call. This class must extend SecurityEvaluator, and must have one and only one constructor that takes the number of arguments specified in sec:args

See Also:

• SecuredAssembler

Field Summary

Fields inherited from interface org.apache.jena.assembler.Assembler

content, defaultModel, documentManager, fileManager, general, infModel, locationMapper, memoryModel, modelSource, ontModel, ontModelSpec, prefixMapping, reasonerFactory, ruleSet, unionModel

Fields inherited from interface org.apache.jena.permissions.AssemblerConstants

ARGUMENT_LIST, BASE_MODEL, EVALUATOR_ASSEMBLER, EVALUATOR_CLASS, EVALUATOR_FACTORY, EVALUATOR_IMPL, NO_X_PROVIDED, SECURED_MODEL, URI

Constructor Summary

Constructors

Constructor	Description
SecurityEvaluatorAssembler()

Method Summary

Modifier and Type	Method	Description
SecurityEvaluator	open(Assembler a, Resource root, Mode mode)

Methods inherited from class org.apache.jena.assembler.assemblers.AssemblerBase

getOptionalClassName, getRequiredResource, open, open, openModel, openModel

Methods inherited from class java.lang.Object

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

Methods inherited from interface org.apache.jena.assembler.Assembler

open, open, openModel, openModel

Constructor Details

SecurityEvaluatorAssembler

public SecurityEvaluatorAssembler()

Method Details

open

public SecurityEvaluator open(Assembler a,
 Resource root,
 Mode mode)

Specified by:

open in interface Assembler

Specified by:

open in class AssemblerBase