Bernard Traversat's Blog

Connect Your Phone With Any Other Devices with JXTA

Two exiting news about JXTA :-) First, the JXTA community just released an enhanced JXTA bidding (jxta-jxme 2.5) for J2ME MIP2.0. If you want to learn more about the new JXTA MIDP 2.0 implementation and check how to connect your phone with a PC and printer, check Mohamed's video. Second, Bondolo just announced the availability of a Grizzly NIO patch for the JXTA Java SE binding that is going to drastically reduce thread resource consumption when JXTA peers accept incoming HTTP connections. Great to see another collaboration between the JXTA and Glassfish(Grizzly) open-source community.

Project SAXTA: An Eco-Friendly Distribution Network to View Earth Data

Project SAXTA (the acronym SAXTA is derived from SAtellite JXTA™) is a new, open network dedicated to the sharing of high-resolution NASA Earth observation data sets such as Landsat and ASTER data. SAXTA is using a decentralized JXTA P2P network architecture that enables users, Earth science scientists, and educators all over the world to freely access and share Earth data without requiring NASA to host a massive centralized infrastructure to serve content. SAXTA architecture really paves the way for a new generation of eco-friendly distribution network that will help reduce CO2 emissions. When looking for a content, the SAXTA network can determine the closest path to a copy of the content to reduce the number of hops packets have to go through and minimize overall packet processing and traffic. MSN and Google's Earth may want to take a closer look at what NASA and the SAXTA folks are building.

To join the SAXTA network click here.

As a side note, the same eco-friendly JXTA P2P technology used by SAXTA is also powering Sun's Glassfish appserver clustering product :-)

JXTA@JavaOne06 A Pretty Good Millesime!

The JXTA community had another great presence at JavaOne. Here are some of the highlights. The Ricoh/Genius Bytes P2P Office app won a Duke award for most innovative Java application. P2P Office uses JXTA to securely connect printers and enable users to send documents to each other from any Internet-connected printers. The OpenJavaEE/Glassfish community announced Project Shoal. Project Shoal implements a secure and scalable framework for clustering app server instances using the JXTA Technology. Shreedhar's Blog includes a pointer to Shreedar and Mohamed presentation. It's a great example of open-source cross-pollination between the Glassfish and Jxta community to enable secure and dynamic appserver clustering in Glassfish. Tim Bray had an interesting session about Sigrid :The Simplest Possible Grid Computing Platform. Sigrid implements a REST-like grid computing framework using JXTA to discover network compute resources. Mike Duigou had a BOF session on "JXTA Security and Best Practices" that gave an overview of JXTA security features. James Todd demoed a Netbeans Collaboration Plugin that uses JXTA to support ad hoc and dynamic developer collaborations. JXTA removes the need to deploy a IM/XMPP collaboration server to share files and projects in realtime. A bunch of new JXTA programmers graduated from the JXTA HOL class. I presented a Session on the use of JXTA to build highly-dynamic and scalable military battlefield networks that talked about the work that Boeing is doing with JXTA for the US Army FCS project. See my slides, and Masood's blog. As Simon Phipps mentioned, Boeing is contributing back platform enhancements to the Jxta.org community. At the JXTA and Java.net booths, a couple of new JXTA Java apps were demoed SimpleCenter, Kerika and Verosee. Finally, if you missed the JXTA Townhall community meeting we had a great celebration for JXTA and the cake was really good :-)

JXTA Community latest "triple play" releases deliver JXTA ubiquitous network vision

This week the JXTA community executed an impressive "triple-play", releasing simultaneously, for the first time in the project history, 3 different implementations of the JXTA P2P protocols. The 3 implementations are fully compliant and interoperable enabling the deployment of self-organizing, scalable, and secure P2P applications on devices ranging from sensors, phones, ipods, PDAs, PCs, TVs, STBs, DVRs, servers and supercomputers.

1)JXTA-J2SE 2.3.4 (Arroz Congris)

2)JXTA-J2ME 2.0 (Arrakis),

3)JXTA-C/C++ 2.1.1 for Solaris, Linux, Win, and embedded RTOS (Disney).

Sun also announced that Boeing, the lead systems integrator for the U.S. Army's multi-billion dollar Future Combat Systems (FCS) project, has selected the JXTA technology to provide the P2P discovery service for the U.S. Army FCS global network infrastructure.

These latest announcements highlight the continue growth and maturity of the JXTA technology, making JXTA the leading P2P Platform for deploying ubiquitous commercial applications.

JXTA will have a significant presence at JavaOne to reinforce its commitment to the Java developer community.

JXTA community members will also be on hand to share their experiences and expertise on developing and deploying JXTA applications at the JXTA Community Townhall meeting. Please come meet with us and learn about the unique capabilities of the JXTA network for deploying highly-resilient, self-organizing, and scalable ubiquitous network solutions.

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"As Java implies platform independence, and
XML implies language independence, JXTA
implies network independence."

JXTA on the Move: Boeing selected JXTA for the U.S. Army Future Combat Systems

While we keep hearing about the misuse of P2P technology for sharing copyright materials in the press, it is nice to point out that there is more to P2P, and P2P presents unique values and capabilities to build scalable, dynamic and highly reliable network infrastructures. The JXTA open-source community is continuing its growth and successes building the leading open-source P2P platform.

Today, Sun announced that Boeing selected the JXTA technology to provide the peer-to-peer (P2P) discovery service for the System of Systems Common Operating Environment (SOSCOE) for the U.S. Army's multi-billion dollar Future Combat Systems (FCS) initiative. JXTA unique P2P virtual network layer and decentralized discovery service is providing unique values to Boeing for deploying FCS within highly dynamic and distributed network environments.

Sun's Boeing JXTA announcement

This is great news for the P2P and JXTA community as this is bringing another legitimate usage of P2P. Really no excuses for not trying JXTA now :-)

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"As Java implies platform independence, and XML implies language independence, JXTA implies network independence."

The JXTA latest platform releases are out!

The JXTA community just announced yesterday the availability of two new releases of the JXTA P2P Platform: JXTA J2SE release, 2.3.3 "Pyrogy", and JXTA C/C++ release, 2.1 "Capri". Both the JXTA "Pyrogy" and "Capri" releases provide a number of feature enhancements, performance improvements, as well as enhanced platform capabilities

You can access these releases via the jxta.org download page: http://download.jxta.org/build/release

These releases have been designed to be API and protocol backwards compatible with previous JXTA J2SE and C/C++ 2.x releases, and are fully interoperable.

No excuses for not building your JXTA-based applications, and entering the JXTA world where every peer resource in the network can be leveraged.

The Power of JXTA Virtual Network Addressing!

JXTA vision is to abstract the Internet into a multitude
of user's defined virtual p2p network overlays allowing
Java applications to transparently roam from multiple
network locations or connectivities while still remaining
*virtually* connected.

The latest JXTA application proXimio from Fabrice
Dimeglio is demonstrating this new dimension in Java
network programming. Wherever your are moving
(behind NAT, firewall, or switching to a new network
connectivity) your JXTA applications will continue to
work. JXTA under the cover manages the dynamic mapping
from JXTA virtual addresses to physical IP addresses,
and will select the best transport link
available for your application.

Here is a sample chat exchange on Fabrice's proXimio
JXTA application:

alexissmirnov: 11:57:31 AM
so the test case i'm thinking of - 0. connect using wifi
1. connect network cable 2. turn off wifi 3. check to
see if proximio is still connected to the network
fdimeglio: 11:57:51 AM
oh
fdimeglio: 11:57:52 AM
undestood
fdimeglio: 11:58:07 AM
but I am sorry I cannot test it currently
fdimeglio: 11:58:31 AM
because I dont have a network cable!
fdimeglio: 11:58:41 AM
full wifi in my home
fdimeglio: 11:59:20 AM
may I ask you some questions ?
alexissmirnov: 11:59:35 AM
not i got 2 network interfaces
alexissmirnov: 11:59:54 AM
disconnecting wifi
alexissmirnov: 12:00:05 PM
wifi disconnected
fdimeglio: 12:00:08 PM
are U doing the test ?
fdimeglio: 12:00:11 PM
ok
alexissmirnov: 12:00:19 PM
wow
fdimeglio: 12:00:28 PM
works ?
alexissmirnov: 12:00:28 PM
looks like it works :)
fdimeglio: 12:00:33 PM
very good!
fdimeglio: 12:00:38 PM
that's JXTA power

If you want to learn how to write such applications check the myJXTA and
Shell demo JXTA applications.

]]> "As Java implies platform independence, and
XML implies language independence, JXTA
implies network independence."

Time to cast your JXTA P2P Vote!

As a sign of an healthy and growing open-source community, the JXTA community
is holding its third election to fill two openings on
the JXTA Board of Directors. You may vote anytime
between now and midnight PST Monday, Feb 13.

Information about the election can be found at:
http://www.jxta.org/community/voting/election2005.htm

The newly elected representatives will serve for a year
to help arbitrate and drive the future of the JXTA
technology. Each candidate is a member of the JXTA
Community, and has been nominated following the JXTA
Community Election process.

]]> "As Java implies platform independence, and
XML implies language independence, JXTA implies
network independence."