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JMS in der Praxis

JMS in der Praxis. Stefan Kischel Product Manager. Messaging = MOM (Message Oriented Middleware). Application-driven Messaging Within or across systems. Application A. Application B. Message Server. Messaging API. Messaging API. M. Messaging Client. Messaging Client. M.

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JMS in der Praxis

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  1. JMS in der Praxis Stefan Kischel Product Manager

  2. Messaging = MOM(Message Oriented Middleware) Application-driven Messaging Within or across systems Application A Application B Message Server Messaging API Messaging API M Messaging Client Messaging Client M Networking Stack Networking Stack Networking Stack Point-to-Point (11) - Or - Publish and Subscribe (1Many)

  3. Building Distributed Applications A New Landscape • Internet B2B applications and services • Creating the global enterprise • Disparate systems acquired via mergers and acquisitions • Increase of disconnected users • Handheld, mobile • Growth of embedded systems

  4. Building Distributed Applications • Potential for explosive success • High-performance, massive scalability • Built on most common Internet protocols  TCP and HTTP • Heterogeneous (multi-company, multi-vendor) • Standard interfaces and data formats  JMS and XML • Comprehensive security, encryption and firewall support • Diversity in application styles and devices • Flexible Topology: 11and 1Many • Wide range of platforms & mobile devices  100% Java • Highly distributed, unpredictable environment • Fault-Resilient with guaranteed delivery and QoS • “Loosely Coupled” communications architecture

  5. Building Distributed Applications Limitations of Current Technology • Not optimized for the Internet • No support for disconnected users • Proprietary systems over private networks • Unwieldy and inflexible • Large footprint • Limited support for standards

  6. Frequent Limitations of current Technologies* • Forces “tightly coupled” synchronous model • Not designed for the Internet or firewalls • Inflexible & cumbersome • No guaranteed delivery • Large “footprint” & not easily embedded • Difficult to maintain or administer • No support for intermittent or mobile clients • No explicit support for XML * e.g., CORBA, COM, RPC or RMI, Native Sockets, Custom Programming on HTTP, or Proprietary Middleware

  7. Today’s Religious Dividefor the Underlying Communications Architecture Tightly Coupled Loosely Coupled Client/Server B2C B2B B2C EAI Integration Brokers Application Servers Asynchronous Synchronous Choices: Messaging Favored for distributedInternet applications& Enterprise Integration Choices: CORBA, COM, RMI, RPC& Messaging Favored for traditional Enterprise applications& simple web apps

  8. Enter ... Java Messaging • Service allowing Java-based applications to communicate • Two models: • Publish and Subscribe (1Many) • Messages passed between publishers and subscribers via topics • Point-to-Point (11) • Messages passed between senders and receivers via queues

  9. Java Messaging Service (JMS)The Only Industry Standard for Messaging • Developed and maintained by Javasoft • Standardized since 1998 • A way for Java programs to interact • Embraced within J2EE specification • An API and set of semantics • A common programming framework for: • Point-to-Point (PTP) • Publish & Subscribe (Pub/Sub)

  10. Messaging Models Point-to-Point (11) Queue Sender Receiver Sends message to a Queue Queue = “Location” for the messages of a given type Only one client receives the message, (but several receivers may share load) Publish & Subscribe (1Many) Subscriber(s) Topic Publisher Posts messages to a Topic Topic = “Subject” of communication Available to “registered” participants Each receive messages on topics to which they register

  11. Publish & Subscribe Publisher Topic Subscriber New Flavor Price Increase

  12. Point-to-Point Sender Queue Receiver Can Send Sausages Can Send Potatoes

  13. How is Messaging Being Used? • “E-Tail” • Supply Chain Management • Workflow Management • Data Dissemination / Integration • Distributed monitoring • Enterprise Application Integration

  14. E-Tailer:Business to Consumer Message 1:“Product Order” Consumer E-Tailer Message 2:“Credit Check” Message 3:“Credit OK” Credit Bureau

  15. Supply Chain Management:Wholesalers and Retailers Message 1:“Item on Sale” Wholesaler Chain Retailer Small Retailer Message 2:“Place Order” Wholesaler

  16. Workflow Management:Mobile Loan Processors Loan Agent A Message 1:“Loan Request” Mortgage Company Message 3:“Need More Info” Message 2:“ Loan Approved” Loan Agent B

  17. Limitations of the JMS Standard It Does Not Address • Security • Load Balancing • Fault Tolerance • Error Notification • Administration • Repositories • XML Support • Wire Protocols It Does Not Require • Support for Both Messaging Models • Transaction Support • Asynchronous Reply • Naming Conveniencesfor Topics & Queues • 100% Java

  18. SonicMQMessaging for Next Generation Internet Centric Applications ...Get the Message!

  19. SonicMQ:Many Applications Exchanges& Auctions New Internet Services New CollaborativeCommunication Real-timeBusiness Info Distributed E-tail On-lineReservations Reliable “Push” WorkflowAutomation Web SiteManagement Mission CriticalMonitoring CRM & SCM Traditional Enterprise Fast Data&ObjectReplications EAI SonicMQ

  20. SonicMQ Feature SummaryFull Implementation of JMS Standard and More • MESSAGE BROKER • Transaction Support • Security • Message Persistence • QoS Delivery • Asynchronous Reply • Abstraction of • Communications Java Clients • Broker Clusters ActiveX Clients C++ Clients • ADMINISTRATION CLIENT • Command Line & GUI • Remote access 100% Java • TOPICS & QUEUES • PTP & Pub/Sub • XML Messages • Durable Subscribers • Hierarchical Name • Spaces • Client Push • Subject-based • Addressing

  21. SonicMQ ArchitectureScalability & Flexibility via Clustering C/C++Client* Admin Client *Future ActiveX Client JMS Client Distributed Broker Cluster Broker Broker Queue Topic Broker Topic

  22. SonicMQ Delivers: Speed & Scalability The highest performance for “Loosely Coupled” Internet applications B2B B2C EAI Integration Brokers SonicMQ TCP/IP or HTTP

  23. SonicMQ Delivers:Reliability The guaranteed delivery & security for business critical services & transactions SonicMQ Roll-back of Whole Sets of Messages SSL Authentication Persistent Messages 40 and 128 BitEncryption Durable Subscriptions

  24. SonicMQ Delivers:Flexibility The right kind of flexibility for today’s diverse Internet environment SonicMQ XML Message Type Choice of Client API(Java, ActiveX, C/C++, more) Pub/Sub &Point-to-Point Choice of Databasewith JDBC QoS Delivery Optionsand “Firewall Tunneling”

  25. SonicMQ Delivers:Ease of Use and Low TCO* The only product designed to be “built-in”to new Internet centric applications SonicMQ Remote Administrationover the Internet Subject-based and Hierarchical Addresses Small “Footprint”& Easy Install Embedded Database Included Abstraction of Communication Layer *TCO= Total Cost of Ownership

  26. SonicMQ Product Line • SonicMQ Developer Edition • Single broker, 5 clients • Supported on WinNT only • SonicMQ Small Business Edit. • Single broker, 50 clients • Includes first year support • SonicMQ Enterprise Edition • Clustered brokers no client limitations

  27. SonicMQ Customer Success Reference Accounts to Date • IONA • GemStone • SAG America

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