OpentalkMatrix
presentation
Monteiro, Charles: OCIT
Tuesday 9:15 am to 10 am
Abstract: OpentalkMatrix is a p2p application in some
respects similar to LimeWire. It will be used as the context for
discussion of Opentalk ST-ST distributed object messaging protocol.
The discussion will include issues related to secured
communications in particular integrating with Stunnel,
gnutella-like query propagation, among other things. The discussion
will not assume any prior knowledge of Opentalk ST-ST and therefore
it will also include a brief introduction to the related concepts.
There will be a demonstration of OpentalkMatrix which will consist
of searching for components on a network and downloading the
components to the query issuer's node. Currently, a component can
be any file type. However, special treatment is provided for
parcels. A query for a parcel will find said parcel and not only
download the parcel but all pre-requisite parcels as well as other
non-parcel files that have been registered as pre-requisites i.e.
typically configuration and data files, possibly images etc. Once
loaded the parcel can then be engaged i.e. launched.
There is a security mechanism in place to secure unauthorized
download of components. Currently, it is password based but the
basic framework is in place to do more sophisticated enforcement.
OpentalkMatrix, also illustrates the notion of an SRE (Smalltalk
Runtime Environment). It is also somewhat similar to what Java Web
Start does i.e. it accomplishes the same thing. Note that the plan
is to provide support for another type of component namely a
"service". A service is something that does something for you on
the p2p network. Once a service is found then said service can be
engaged.
Finally the demo hopefully will include audience participation
i.e. attendees should be able to logon onto the wireless p2p
network and find something i.e. such as they would were they using
LimeWire.
Bio: Charles A. Monteiro has been the chair of NYC
Smalltalk for the last 4 years and been a member since 1996. He has
been actively using Smalltalk since 1994 and has delivered
enterprise applications to Fortune 500 companies such as Florida
Power & Light, Keyspan Enery and ADP. His professional
application experience has involved diverse technical areas such as
custom pen graphics, geographical information systems, object
database systems, multimedia consumer apps, web enablement of AS400
systems and peer to peer systems. The business domains include gas
and electric utlities, finance, music education, EAI and database
tools.
Charles is currently the technical architect and project lead
for an established small NYC metro based financial software firm
where Opentalk is actively being used. The company's clients
include one of the largest banks in the world. Other Smalltalk
related activities include working on a open source Traits
implementation for VisualWorks. Most of his leisure time however is
spent playing and studying the guitar.
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