11XML for Java Developers G22.3033-002Session 11 - Main ThemeXML-Based FrameworksDr. Jean-Claude FranchittiNew York UniversityComputer Science DepartmentCourant Institute of Mathematical Sciences2Agenda Summary of Previous Session XML and Application Server Technology XML Message Oriented Middleware (MOM) Frameworks Web Services Final Exam23Summary of Previous Session Summary of Previous Session XML Object Persistence Advanced XQuery Concepts Presentation Oriented Publishing (POP) Frameworks Web Services Assignment 5a-c (due next week)4Part IXML and Application Server Technology35XML and OMG’s CORBA 3 OMA CORBA Creating distributed object systems on heterogeneous platforms XML Conveying structured data in a portable way CORBA Component Model (CCM)  http://ditec.um.es/~dsevilla/ccm/ CORBA equivalent of Enterprise JavaBeans for the Java server-side component framework CCM components submission uses XML for software package descriptors Based on Open Software Description (OSD) XML Metadata Interchange (XMI) Interchange of meta data between modeling tools using the Unified Modeling Language (UML) and meta data repositories based on the Meta Object Facility (MOF) standard IDL over IIOP vs. XML over HTTP (XIOP)6XML and J2EE XML data representation and exchange JAXP 1.1 EJB persistence service XML MOM via JMS JMS API’s TextMessage Custom JMS extensions BEA's WebLogic XMLMessage subclass Sun’s Java API for XML Messaging (JAXM) XML-RPC, SOAP, ebXML User Interface & Presentation Java Server Pages (JSPs) and Servlets47XML and Microsoft DNA DNA XML Resource Kit Tools to send data across the Internet to other applications or browsers. DNA replaced by Microsoft .NET8Part IIXML Message-Oriented Middleware (MOM) Frameworks59MOM Application Development Tools Serializing Java objects into XML using reflection Sims Computing lightweight XML messaging framework (based on JMS) xmlBlaster Message Oriented Middleware project  MOM platform that uses XML for the message meta-data and quality of service information Messages can be filtered using XPath expressions which match against the XML header document Developing MOM applications using the SAX/DOM APIs10B2Bi: B2B commerce and Enterprise Application Integration (EAI) B2Bi is based on the transformation and routing of XML documents B2Bi patterns: Direct Application Integration Data Exchange Closed Process Integration Open Process Integration Existing Frameworks: WebMethods B2Bi EAI framework MQSI (MQSeries Integrator) See STP/T+1 in Sub-Topic 1/2 Presentation611B2Bi Direct Application IntegrationArchitecture12B2Bi Direct Application IntegrationRequirements Ability to interact directly with application APIs Integration brokers with built-in support for adapters, transformations, and asynchronous content0based routing Same Integration Broker on both ends Secure transport, component authentication, and user authorizations Federated security control713Data Exchange B2BiArchitecture14Data Exchange B2BiRequirements Translation of data native to an application into a common document format, and transmission via a gateway No constraints on the presence of Integration Brokers B2B transactions enabled via a common data exchange format815Closed Process Integration B2BiArchitecture16Closed Process Integration B2BiRequirements Principal participant responsible for managing processes Other participants are secondary, and do not have visibility into the entire process Requires the introduction of business process integration (BPI) services B2Bi product offerings are beginning to incorporate BPI as an essential component In this case, B2Bi enables the integration of logical business process elements expressed as activities rather than data917Closed Process Integration B2BiArchitecture18Closed Process Integration B2BiRequirements Introduces the notion of shared processes rather than operating from a centralized master process manager model Each participant is actively managing business processes within its domain The BPI layer must support fine-grained control of managed processes1019EAI Frameworks and XML XML complements EAI technology Powerful meta language Simplicity Separation of content and presentation format Common open standard EAI Frameworks must address the limitations of XML Limited Semantics Interpretation Lack of data transformation facilities Inefficiencies of text-based documents Absence of component-based routing20EAI Provides Data Transformations1121Efficiency: Binary Objects on the Wire22Part IIIWeb Services1223Content, Discovery, Universal access, and Intelligent Software Agents UDDI: Universal Description, Discovery, and Integration Industry-wide effort to bring a common standard for business-to-business(B2B) integration Set of standard interfaces for accessing a database of web services See UDDI Browser at http://www.soapclient.com/uddisearch.html jUDDI (pronounced "Judy") is an open source Java-based implementation of a UDDI registry  Also see  http://www.sun.com/software/xml/developers/uddi/ http://www-3.ibm.com/services/uddi/index.html http://uddi.microsoft.com/default.aspx http://www.oasis-open.org/cover/uddi.html http://www.itpapers.com/cgi/SubcatIT.pl?scid=436 Intelligent Software Agents: ATLAS, Aglets, etc.24XML-Based e-Services Protocols and Architectures XML-RPC and Peer-to-Peer Computing http://xml.coverpages.org/xml-rpc.html Simple Object Application Protocol (SOAP) http://soap.develop.com/xmlrpc/ Universal Description, Discovery, and Integration (UDDI) Web Service Definition Language (WSDL) http://www.w3.org/TR/wsdl Pervasive devices Resource Description Framework (RDF) Platform for Internet Content Selection (PICS) Platform for Privacy Preferences (P3P) Channel Definition Format (CDF) Rich Site Summary (RSS) Blocks Extensible Exchange Protocol (BXXP)1325XML-Based e-Services Protocols and Architectures (continued) XML Protocol (XMLP): XML-Based Messaging Systems Standardized application to application XML messaging (via HTTP, and MQSeries) XML and User Identification/Security XML and Databases XML and JDBC XML Extensions and Tools for Oracle, Informix, IBM DB2, and Microsoft SQL Server Transaction