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Project JXTA

Project JXTA. By Jude Mercado. Background. Project JXTA started as a research project at Sun Microsystems, Inc. under the guidance of Bill Joy and Mike Clary Released to the community in April 2001 It is currently an ongoing open-source project to develop ad hoc, peer-to-peer computing.

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Project JXTA

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  1. Project JXTA By Jude Mercado

  2. Background Project JXTA started as a research project at Sun Microsystems, Inc. under the guidance of Bill Joy and Mike Clary Released to the community in April 2001 It is currently an ongoing open-source project to develop ad hoc, peer-to-peer computing

  3. Project Goals • Standardize a common set of protocols for building p2p applications • Peer Discovery Protocol • Peer Resolver Protocol • Peer Membership Protocol • Pipe Binding Protocol • Endpoint Routing Protocol • Peer Information Protocol

  4. Project Goals (Cont’d.) Create platform independent applications Interoperability

  5. JXTA Platform • “insert picture”

  6. JXTA Components • Peers • Pipes • Services • Peer Groups

  7. 1. PEERS • Fundamental entities in a JXTA system • Represented by unique Peer ID • Can be associated with one or more physical networking endpoints • TCP – IP address plus port number • HTTP -- URL • Wireless packet network – cell phone #

  8. 2. PIPES • Provide communication channels for JXTA peers • Input • Output • Dynamic • Not bound to a physical endpoint until just before communications occur

  9. 3. SERVICES • Hosted by a peer • Performs useful work on behalf of a remote peer • Resembles client-server relationship

  10. 4. PEER GROUPS • A security domain within which membership can be authenticated and managed • Group with shared common services • All peers belong to a default group • “world peer group”

  11. Platform Core Services • Discovery • Pipe • Resolver • Membership/Access • Monitor

  12. 1. Discovery Service • Allows peers to discover each other • Also used to discover peer groups, services, pipes • Discovery is performed via query for specific advertisements

  13. 2. Pipe Service • Enables peers to bind to pipe endpoints • Manages pipes created by a peer • Facilitates passing of messages through pipes

  14. 3. Resolver Service • Provides a propagation service to query requests within a peer group

  15. 4. Membership/Access Service • Security service • Can be used to control access to any service or resource

  16. Monitor Service • Allows for a peer to be monitored for uptime, traffic on each incoming and outgoing channel, and other information related to status

  17. JXTA Virtual Network • “insert picture”

  18. References • jxta.org • java.sun.com • JXTA Peer-to-Peer Computing with Java • By Sing Li

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