/**
* Checks if an XDI entity is a valid XDI public link contract.
*
* @param xdiEntity The XDI entity to check.
* @return True if the XDI entity is a valid XDI public link contract.
*/
public static boolean isValid(XdiEntity xdiEntity) {
if (!RelationshipLinkContract.isValid(xdiEntity)) return false;
if (xdiEntity instanceof XdiEntitySingleton) {
if (RelationshipLinkContract.getAuthorizingAuthority(xdiEntity.getXDIAddress()) == null)
return false;
if (RelationshipLinkContract.getRequestingAuthority(xdiEntity.getXDIAddress()) == null)
return false;
if (RelationshipLinkContract.getTemplateAuthorityAndId(xdiEntity.getXDIAddress()) != null)
return false;
if (!XDILinkContractConstants.XDI_ADD_PUBLIC.equals(
RelationshipLinkContract.getRequestingAuthority(xdiEntity.getXDIAddress()))) return false;
return true;
} else if (xdiEntity instanceof XdiEntityInstance) {
return false;
} else {
return false;
}
}
/**
* Factory method that finds or creates an XDI public link contract for a graph.
*
* @return The XDI public link contract.
*/
public static PublicLinkContract findPublicLinkContract(Graph graph, boolean create) {
XDIAddress ownerXDIAddress = GraphUtil.getOwnerXDIAddress(graph);
if (ownerXDIAddress == null) return null;
RelationshipLinkContract relationshipLinkContract =
RelationshipLinkContract.findRelationshipLinkContract(
graph, ownerXDIAddress, XDILinkContractConstants.XDI_ADD_PUBLIC, null, null, create);
if (relationshipLinkContract == null) return null;
return fromXdiEntity(relationshipLinkContract.getXdiEntity());
}
public static XDIAddress createPublicLinkContractXDIAddress(XDIAddress ownerXDIAddress) {
return RelationshipLinkContract.createRelationshipLinkContractXDIAddress(
ownerXDIAddress, XDILinkContractConstants.XDI_ADD_PUBLIC, null, null);
}
