issrg.pba.rbac.xmlpolicy
Class XMLPolicyParser.RoleHierarchyPolicyNode

java.lang.Object
  issrg.pba.rbac.xmlpolicy.PolicyXMLNode
      issrg.pba.rbac.xmlpolicy.XMLPolicyParser.RoleHierarchyPolicyNode

All Implemented Interfaces:

RoleHierarchyPolicy

Enclosing class:

XMLPolicyParser

public class XMLPolicyParser.RoleHierarchyPolicyNode
extends PolicyXMLNode
implements RoleHierarchyPolicy

This is the class that represents the RoleHierarchyPolicy node. It knows all the types and OIDs of all Role hierarchies declared in the policy.

Version:

1.0

Author:

A Otenko

Field Summary

protected java.util.Map	byOID This is a Map of Role hierarchies, indexed by their OID.
protected java.util.Map	byType This is a Map of Role hierarchies, indexed by their type.
protected java.util.Map	typeOid

Fields inherited from class issrg.pba.rbac.xmlpolicy.PolicyXMLNode

attributes, children, name, nodeStr

Constructor Summary

XMLPolicyParser.RoleHierarchyPolicyNode(org.xml.sax.Attributes attrs)
This is the only constructor, and it simply creates a PolicyXMLNode of this type.

Method Summary

void	construct() This method looks through its children and rearranges them into maps of role hierarchies by type and by OID.
XMLPolicyParser.RoleSpecNode	getByOID(java.lang.String roleOID) This method returns a RoleSpecNode (a role hierarchy) of the given OID.
XMLPolicyParser.RoleSpecNode	getByType(java.lang.String roleType) This method returns a RoleSpecNode (a role hierarchy) of the given type.
RoleHierarchyNode	getRole(java.lang.String type, java.lang.String value) This method returns a reference to a hierarchy node for the role of the given type and value.
java.lang.String	getTypeByOID(java.lang.String roleOID) This method returns the role type defined for a specific OID.
java.util.Map	getTypeOid() This method returns a Map of types into OIDs.

Methods inherited from class issrg.pba.rbac.xmlpolicy.PolicyXMLNode

addChild, addString, getAttributes, getChildren, getName, getString, toString, toXML, toXML

Methods inherited from class java.lang.Object

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

Field Detail

byType

protected java.util.Map byType

This is a Map of Role hierarchies, indexed by their type.

byOID

protected java.util.Map byOID

This is a Map of Role hierarchies, indexed by their OID.

typeOid

protected java.util.Map typeOid

Constructor Detail

XMLPolicyParser.RoleHierarchyPolicyNode

public XMLPolicyParser.RoleHierarchyPolicyNode(org.xml.sax.Attributes attrs)

This is the only constructor, and it simply creates a PolicyXMLNode of this type.

Method Detail

construct

public void construct()
               throws PolicyParsingException

This method looks through its children and rearranges them into maps of role hierarchies by type and by OID.

Overrides:

construct in class PolicyXMLNode

Throws:

PolicyParsingException - if a semantic error is encountered (for example, two role hierarchies of the same type)

getByType

public XMLPolicyParser.RoleSpecNode getByType(java.lang.String roleType)

This method returns a RoleSpecNode (a role hierarchy) of the given type.

Parameters:

roleType - is the String name of the role type to return

Returns:

the RoleSpecNode representing the hierarchy of roles of the given type, or null, if no such type has been defined

getByOID

public XMLPolicyParser.RoleSpecNode getByOID(java.lang.String roleOID)

This method returns a RoleSpecNode (a role hierarchy) of the given OID.

Parameters:

roleOID - is the dotted representation of the OID of the role hierarchy to return

Returns:

the RoleSpecNode representing the hierarchy of roles of the given OID, or null, if no such type has been defined

getTypeByOID

public java.lang.String getTypeByOID(java.lang.String roleOID)

This method returns the role type defined for a specific OID.

Specified by:

getTypeByOID in interface RoleHierarchyPolicy

Parameters:

roleOID - - the OID in dotted form of the role type

Returns:

the role type, as declared in the policy, or null, if no role type for this OID has been declared

getRole

public RoleHierarchyNode getRole(java.lang.String type,
                                 java.lang.String value)

This method returns a reference to a hierarchy node for the role of the given type and value.

Specified by:

getRole in interface RoleHierarchyPolicy

Parameters:

type - - the type of the role, as declared in the policy

value - - the value of the role, as declared in the policy

Returns:

issrg.pba.rbac.RoleHierarchyNode that represents the role with the given value of the given type, or null, if no such type has been declared, or if there is no such value for the existing type

getTypeOid

public java.util.Map getTypeOid()

This method returns a Map of types into OIDs. The keys in the Map are the role types, as defined in the policy, and the values in the Map are the OIDs of these roles.

Specified by:

getTypeOid in interface RoleHierarchyPolicy

Returns:

a hashtable that map between type and corresponding OID