Greg Trasuk wrote:
Inspired by Peter's post below, I've begun to elucidate some thoughts on
where I see Jini/River at http://wiki.apache.org/river/JavaBasedSOA
You've got my vote for the Surrogate SOA Adapter pattern.
Cheers,
Peter.
For some reaon it won't let me attach a graphic. ("You are not allowed
to do AttachFile on this page"). Any ideas?
Maybe this should have it's own page on the river website outside of the
wiki. I'd like to see some graphics explaining service dependencies
too, along the lines that Dennis has done with Rio.
Cheers,
Peter.
Cheers,
Greg Trasuk.
On Sun, 2011-07-31 at 04:43, Peter Firmstone wrote:
Just thought I'd go over the ideas, thoughts and TODO's that come to
mind and get some feedback about what others are thinking and what tasks
they see as important. There's plenty of work for those so inclined and
generous with time.
Brief Summary:
* TaskManager - improve concurrency and remove the dependency on
Task.runAfter() in River code.
* The Surrogate Project.
* Providing Services over the Internet:
o NAT Traversal
+ UDT (UDP Based Data Transfer)
http://udt.sourceforge.net/ - a NAT friendly
alternative to TCP.
+ STUN, TURN, NAT-PMP, UPnP
o DNS-SRV LookupDiscovery (discovering lookup services in
internet domains using DNS).
o DGC (Distributed Garbage Collection) investigating use of
Secure Endpoints?
o StreamServiceRegistrar - delayed unmarshalling, client side
filtering and Javaspace MatchSet like result handling using
ResultStream, to address some of the long term criticisms of
ServiceRegistrar.
* SecurityManager and Policy
o River-323 ConcurrentDynamicPolicy - existing policy
implementations cause multi threading lock contention
(almost complete, just needs to be tested against the
current trunk and merged).
+ River-249 Added support for umbrella grant's.
o Permission Revocation (Framework implemented, requires
standardization).
+ Delegate's - use Li Gong's method guard pattern to
encapsulate Socket's, Streams etc.
+ DelegatePermission - to encapsulate an existing
permission that allows references to security
sensitive objects to escape.
+ Requires support from the SecurityManager, to check
all ProtectionDomain's in the AccessControlContext for
a DelegatePermission or it's candidate (the Permission
encapsulated by a DelegatePermission).
+ Requires support from a RevocablePolicy, to remove a
DelegatePermission (or other existing Permission that
doesn't let references escape) from the policy.
o InternetSecurityManager - support for caching repeated
permission for each AccessControlContext.
o SecurityPolicyService - Allow local Policy's to be updated
by subscribing to a Service using secure Endpoint's and
administrator Subject's, to simplify distributed policy
maintenance and replication. This is in addition to policy
files and dynamic grant's to proxy's.
+ Requires support from the Policy implementation.
+ Utilized and improved Apache Harmony File Policy
Parser implementation
+ This isn't for dynamic grant's to Proxy's, but may be
used to modify who (Subject) can make a dynamic grant.
+ Utilizes existing policy file syntax.
+ Allows granting of DownloadPermission to Certificate[]
signers to prevent proxy unmarshalling DOS attacks.
* River-32 Jini Lookup, Discovery and Join Test Kit - Get this
codebase working again.
* River-279 - Create a subproject called Jini (no longer
trademarked) to manage the Jini Specifications?
* Investigate conversion script for a Maven or Gradle build.
* Separate JVM for isolation of downloaded code, to sandbox
unauthenticated services.
Cheers,
Peter.
