Class SecuredAssembler

All Implemented Interfaces:
Assembler, AssemblerConstants

public class SecuredAssembler extends ModelAssembler implements AssemblerConstants
Assembler for a secured model.

The assembler file should include the following

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

 sec:Model rdfs:subClassOf ja:NamedModel .

 sec:evaluator rdfs:domain sec:Model ;
               rdfs:range sec:Evaluator .
 
The model definition should include something like.
 my:secModel a sec:Model ;
    sec:baseModel my:baseModel ;
    ja:modelName "http://example.com/securedModel" ;
    sec:evaluatorFactory "org.apache.jena.permission.MockSecurityEvaluator" ;
    .
 
Terms used in above example:
my:secModel
The secured model as referenced in the assembler file.
sec:Model
Identifes my:secModel as a secured model
sec:baseModel
Identifies my:baseModel as the base model we are applying permissions to
my:baseModel
a ja:Model (or subclass) defined elsewhere in the assembler file
ja:modelName
The name of the graph as it will be addressed in the permission environment (see ja:NamedModel examples from Jena)
sec:evaluatorFactory
Identifies "org.apache.jena.permission.MockSecurityEvaluator" as the java class that implements an Evaluator Factory. The Factory must have static method getInstance() that returns a SecurityEvaluator.
or if using an evaluator assembler
 my:secModel a sec:Model ;
    sec:baseModel my:baseModel ;
    ja:modelName "http://example.com/securedModel" ;
    sec:evaluatorImpl ex:myEvaluator;
    .

 ex:myEvaluator a sec:Evaluator ;
    ex:arg1 "argument 1 for my evaluator constructor" ;
    ex:arg2 "argument 2 for my evaluator constructor" ;
    .

 
Terms used in above example:
my:secModel
The secured model as referenced in the assembler file.
sec:Model
Identifes my:secModel as a secured model
sec:baseModel
Identifies my:baseModel as the base model we are applying permissions to
my:baseModel
a ja:Model (or subclass) defined elsewhere in the assembler file
ja:modelName
The name of the graph as it will be addressed in the permission environment (see ja:NamedModel examples from Jena)
sec:evaluatorImpl
Identifies ex:myEvaluator as a SecurityEvaluator defined elsewhere in the assembler file. It must subclass as a sec:Evaluator.
ex:arg1 and ex:arg2
Arguments as defined by the user defined security evaluator assembler.

  • Constructor Details

    • SecuredAssembler

      public SecuredAssembler()
  • Method Details

    • init

      public static void init()
      Initialize the assembler. Registers the prefix "sec" with the uri http://apache.org/jena/permission/Assembler# and registers this assembler with the uri http://apache.org/jena/permission/Assembler#Model
    • open

      public Model open(Assembler a, Resource root, Mode mode)
      Specified by:
      open in interface Assembler
      Overrides:
      open in class ModelAssembler