de.fuberlin.wiwiss.ng4j.swp
Interface SWPNamedGraph

All Superinterfaces:

Graph, GraphAdd, NamedGraph

All Known Implementing Classes:

SWPNamedGraphImpl

public interface SWPNamedGraph
extends NamedGraph

Author:

rowland watkins, chris bizer

Field Summary

Fields inherited from interface com.hp.hpl.jena.graph.Graph

emptyGraph

Method Summary

boolean	assertWithSignature(SWPAuthority authority, Node signatureMethod, ArrayList listOfAuthorityProperties) Given an SWP Authority, digitally sign the current graph according to the signatureMethod.
SWPAuthority[]	getAssertingAuthorities()
SWPAuthority[]	getAssertingAuthoritiesWithVerifyableSignature()
SWPAuthority[]	getQuotingAuthorities()
SWPWarrant[]	getWarrants() Returns an array of all warrants about the graph.
SWPWarrant[]	getWarrantsWithVerifyableSignature() Returns an array of all warrants with a verifiable signature about the graph.
boolean	swpAssert(SWPAuthority authority)
boolean	swpAssert(SWPAuthority authority, ArrayList listOfAuthorityProperties) Given an SWP Authority, assert the current graph with this Authority.
boolean	swpQuote(SWPAuthority authority)
boolean	swpQuote(SWPAuthority authority, ArrayList listOfAuthorityProperties) Given an SWP Authority, quote the current graph with this Authority.

Methods inherited from interface de.fuberlin.wiwiss.ng4j.NamedGraph

getGraphName

Methods inherited from interface com.hp.hpl.jena.graph.Graph

close, contains, contains, delete, dependsOn, find, find, getBulkUpdateHandler, getCapabilities, getEventManager, getPrefixMapping, getReifier, getTransactionHandler, isClosed, isEmpty, isIsomorphicWith, queryHandler, size

Methods inherited from interface com.hp.hpl.jena.graph.GraphAdd

add

Method Detail

swpAssert

boolean swpAssert(SWPAuthority authority,
                  ArrayList listOfAuthorityProperties)

Given an SWP Authority, assert the current graph with this Authority. If the current graph is not a warrant graph, then it will be turned into a warrant graph and the warranting information will be added directly into the graph. Otherwise swpAssert will return false. Example: :G1 { :Monica foaf:name "Monica Murphy" } would become: :G1 { :Monica foaf:name "Monica Murphy" . :G1 swp:assertedBy :G1 . :G1 swp:authority } If the Authority doesn't have a URI, then a blank node will be used to identify the authority and a additional triple containing the foaf:mbox adress of the authority will be added. The listOfAuthorityProperties contains list of properties names (as nodes) describing the authority. These properties will be included into the warrant graph, e.g. foaf:name, foaf:mbox

Parameters:

authority -

swpAssert

boolean swpAssert(SWPAuthority authority)

swpQuote

boolean swpQuote(SWPAuthority authority,
                 ArrayList listOfAuthorityProperties)

Given an SWP Authority, quote the current graph with this Authority.

Parameters:

authority -

swpQuote

boolean swpQuote(SWPAuthority authority)

assertWithSignature

boolean assertWithSignature(SWPAuthority authority,
                            Node signatureMethod,
                            ArrayList listOfAuthorityProperties)

Given an SWP Authority, digitally sign the current graph according to the signatureMethod. The graph will be turned into a warrant graph and warranting and signature information will be added to the graph. Example: :G1 { :Monica foaf:name "Monica Murphy" . :G1 swp:assertedBy :G1 . :G1 swp:authority :G1 swp:signatureMethod swp:JjcRdfC14N-rsa-sha1 . :G1 swp:signature "..." } If the graph is already a warrant graph, then a new warrant graph will be created. Example: :G1 { :Monica foaf:name "Monica Murphy" . :G1 swp:assertedBy :G1 . :G1 swp:authority :G1 swp:signatureMethod swp:JjcRdfC14N-rsa-sha1 . :G1 swp:signature "..." } :Timestamp { :G1 swp:assertedBy :Timestamp . :G1 swp:digestMethod swp:JjcRdfC14N-sha1 . :G1 swp:digest "..." . :Timestamp swp:assertedBy :Timestamp . :Timestamp swp:authority . :Timestamp swp:signatureMethod swp:JjcRdfC14N-rsa-sha1 . :Timestamp swp:signature "..." } The listOfAuthorityProperties contains list of properties names (as nodes) describing the authority. These properties will be included into the warrant graph, e.g. foaf:name, foaf:mbox, swp:publicKey Return true if successful.

Parameters:

authority -

signatureMethod -

Returns:

getWarrants

SWPWarrant[] getWarrants()

Returns an array of all warrants about the graph.

Returns:

getWarrantsWithVerifyableSignature

SWPWarrant[] getWarrantsWithVerifyableSignature()

Returns an array of all warrants with a verifiable signature about the graph. Calling this method requires adding a graph called before. This graph has to contain the public keys and certificates of authorities or root certificates by CAs trusted by the user. The content of this graph will we treated as trustworthy information in the signature verification process. The results of the signature verification process will also be added to the verification caching graph . The content of the verification caching graph is also used to speed the verification process.

Returns:

getAssertingAuthorities

SWPAuthority[] getAssertingAuthorities()

Returns:

getQuotingAuthorities

SWPAuthority[] getQuotingAuthorities()

Returns:

getAssertingAuthoritiesWithVerifyableSignature

SWPAuthority[] getAssertingAuthoritiesWithVerifyableSignature()

Returns: