Download as PDF, PPTX
Uploaded byTUSHAR VARSHNEY
oracle service bus
This document provides an overview of Oracle Service Bus, discussing how it can address SOA requirements through capabilities like proxy services, message transformations, and routing. It describes the target audience, roadmap for the course which covers the OSB architecture, key technologies, proxy service development and management. Finally, it demonstrates how OSB can integrate with other products through its interoperability features.
More Related Content
oracle service bus
- 1. <Insert Picture Here> OracleService Bus Essential Concepts
- 2. About This Course •Discuss several SOA requirements that can be addressed using a Service Bus • Explain the relationships between WSDL, XPath, XQuery, and ALSB • List some of the capabilities of an OSB Proxy Service • Describe the process of how OSB is configured and managed
- 3. Target Audience • Anyoneevaluating Service Bus technologies • SOA project team members: • Project Managers • Enterprise and Project Architects • Service Developers • System Administrators • Prior knowledge of fundamental SOA concepts recommended
- 4. Roadmap 1. Enterprise ServiceBus • Service Enablement • Service Orchestration • OSB Architecture 2. Service Bus Technologies 3. Proxy Service Development 4. Service Management and Monitoring
- 5. Why a ServiceBus? • The Point-to-Point problem Service Service Service Service Application Application Application Service Service Database EJB SAP SOAP SOAP
- 6. HostA Location Transparency New Hire Process InitializeBenefits Service Initialize Benefits Service HostB Service Bus Route to HostB SOAP SOAP • Isolate from changes to service location
- 7. Backwards Compatibility Service Bus ProcessOrder Service Customer Portal Transform Message 1.0 2.0 <1.0> CSR App <2.0> SOAP SOAP • Isolate from changes to service contract/interface
- 8. Service Enablement • Allowmultiple protocols/messages to participate in a SOA Service Bus Transform Payroll Service JMS Expense Reimbursement Process SOAP Submit Expense Report Service FTP Transform Transform Check Order Status Service SOAP Inventory Management App JMS
- 9. Dynamic Routing • Usebusiness rules to determine destination service Service Bus Title = Manger? New Employee Service SOAP New Manager Service Transform HR Portal SOAP
- 10. Message Enrichment • Updatemessage using the response from another service Service Bus Get Customer History Service Call Service Transform Message Rate Quote Service Insurance Portal ... <Customer History> ...
- 11. Service Orchestration • Composenew services from existing ones Service Bus 11 22 33 44 Validate Order Service Check Price Service Account Validation Service Check Inventory Service SOAP Purchase Order Process SOAP
- 12. Oracle Service Bus OSBto the Rescue Oracle JRockit JVM Oracle WebLogic Server SLA Alerts Service Monitoring Dashboard Reporting Dynamic Transformations Message Broker Content Based Routing Error Handling Multiple Protocols Change Mgmt. Service Management Discovery Import/Export Authorization Service Security Authentication Message Security
- 13.
- 14. Roadmap 1. Enterprise ServiceBus 2. Service Bus Technologies • Web Service Fundamentals • XML Fundamentals 3. Proxy Service Development 4. Service Management and Monitoring
- 15. Web Service DescriptionLanguage (WSDL) • Is an XML document • Generated by tools • Acts as a Web Service contract: • Elements • Operations • Bindings • Ports ("endpoints") Employee Department getEmployeeDept() getAllDepts() SOAPEmployeeService http://services.bea.com/employeeservice
- 16. Simple Object AccessProtocol (SOAP) • Is a remote function protocol based on XML • Used to invoke Web Services • Wraps messages in an envelope protocol • Supports headers and attachments SOAP Attachments SOAP Envelope <Headers/> </Body> Client Application Service Communications Envelope (HTTP, SMTP, FTP, etc.)
- 17. Universal Description, Discovery,and Integration (UDDI) • Metadata structure to classify and catalog services • SOAP interface to communicate with a service registry ("digital telephone book") Service Registry WSDL + metadata WSDL + metadata Service Development & Management Tools SOAP Publish Service Discover Service
- 18. XML Schema • Definesthe structure of other XML documents • Is itself an XML document • Allows for faster message validation and processing • Has a unique ID called a namespace <xs:schema targetNamespace="http://schemas.bea.com/purchase" xmlns="http://schemas.bea.com/purchase" xmlns:po="http://schemas.bea.com/purchase" xmlns:xs="http://www.w3.org/2001/XMLSchema"> <xs:element name="PurchaseOrder"> <xs:complexType> <xs:sequence> <xs:element name="Location" type="xs:string"/> <xs:element name="Items" type="ItemList"/> </xs:sequence> </xs:complexType> </xs:element> ... </schema> 1 011
- 19. XPath • Is astandard XML expression language • Used to identify or locate portions of an XML document • Attributes • Elements <PurchaseOrder> <Item line="1"> <price>49.99</price> <quantity>3</quantity> </Item> <Item line="2"> <price>9.49</price> <quantity>1</quantity> </Item> </PurchaseOrder> 1 011 //PurchaseOrder/Item/price //PurchaseOrder/Item/@line
- 20. XQuery • Structured languagefor working with XML documents: • Strongly typed • Variables, operators, conditions, loops • Library and custom functions • Relational database queries • Supports XPath return <items> for $item in //PurchaseOrder/Item order by $item/title return <price>{$item/price}<price> return </items> <items> <price>49.99</price> <price>9.49</price> </items>
- 21. Extensible Stylesheet Language Transformations(XSLT) • Alternative to XQuery for XML transformations: • Loosely typed scripting language • Does not require XML Schema • More tolerant of malformed XML • Supports XPath <xsl:stylesheet> <xsl:template match="//Item"> <line id="{@line}"> <xsl:value-of select="price"/> </line> </xsl:template> </xsl:stylesheet> <line id="1"> 49.99 </line> <line id="2"> 9.49 </line>
- 22.
- 23. Roadmap 1. Enterprise ServiceBus 2. Service Bus Technologies 3. Proxy Service Development • Proxy Architecture • Workspace • Actions • Transformations 4. Service Management and Monitoring
- 24. Proxy Services Service Consumer Service Producer Service Producer Service Producer Business Service Business Service Business Service Service Bus ProxyService Pipeline Pipeline Inbound Outbound Workspace Console
- 25. Supported Protocols • Protocols •SOAP over HTTP/JMS • HTTP/S • JMS • RMI/IIOP (EJB) • Tuxedo, MQSeries • Email (SMTP/POP/IMAP) • FTP/Secure FTP • Custom • Oracle Adapters (framework + Adapters post 10gR3) • Message Formats • XML • Text • Custom Binary (EDI, etc.) • SmartConnect Adapters • SAP • PeopleSoft • Siebel • Oracle • SWIFT XML SOAP over HTTP XML JMS Text SMTP
- 26. Workspace • Eclipse-based IDE •Define XML Schemas, WSDLs, and transformations • Configure business and proxy services • Track dependencies • Deploy to OSB server and test Eclipse Platform Workspace Eclipse Web Tools J2EE XML WSDL HTML Beehive OSB ALRR XQuery
- 27.
- 28. Message Flow • Conditions/branches •Routing destinations • Request/response Pipelines • Actions: • Update/replace/delete message contents • Update message headers • Call another service • Raise error on client • Generate a report or alert • Invoke a Java class or EJB • Error handlers Action Pipeline
- 29. Transformations • XML toXML (XQuery or XSLT) • XML to Text/Binary (XQuery) • Binary to Binary (MFL)
- 30. Dependency Tracking • Selectan artifact • View References
- 31. Demonstration: Create aProxy Service Please enable browser pop-ups! ProcessLoan approveLoan() ProcessLargeLoan approveLoan() Business Service Business Service > $10,000? Y Proxy Service approveLoan() Transform Message N
- 32.
- 33. Roadmap 1. Enterprise ServiceBus 2. Service Bus Technologies 3. Proxy Service Development 4. Service Management and Monitoring • OSB Console • Service Level Agreements • OSB Security • Advanced Routing • Product Interoperability
- 34. OSB Console • FullPipeline Design Capabilities Additionally: • Configure proxy service security • Monitor service health • Generate reports • Define SLAs that trigger alerts • Synchronize with a UDDI registry Edit Message Flow Monitor Alerts
- 35. Configuration Management • ChangeCenter • Atomic sessions • View & resolve conflicts • Undo tasks • Audit changes • Import/Export • Change propagation • Workspace synchronization • Test Console • Validate changes
- 36. Monitoring Dashboard • Gaugethe current health of: • OSB servers • Proxy services/operations • Message flow components • View custom reports • Metrics include: • Response time • Message throughput • Error count • Alert count • Schema violations
- 37. Alerts • Service LevelAgreements (SLAs) • Guarantee a certain level of performance and/or quality • Trigger reports and Alerts • Email • SNMP • JMS • Rules based on: • Response time • Message count • Success/failure ratio • Schema violations • Security violations
- 38. OSB Security • Transportsecurity (HTTP, JMS, etc.) • Basic authentication • SSL • SOAP message security • WS-Security • WS-Policy • SAML • Credential mapping • Role-based authorization • Delegated administration Service Consumer Service Producer Proxy Service Business Service SOAP over HTTPS WS-Security SAML Authorization Credential Mapping
- 39. Proxy Service Business Service Legacy Service Advanced Mediation Policies •Business Service Load Balancing & Failover • Throttling Service Producer Node2 Service Producer Node1 Service Producer Node3 Message Buffer Proxy Service Business Service
- 40. Demonstration: Manage aProxy Service Please enable browser pop-ups! ProcessLoan approveLoan() Business Service > $10,000? Proxy Service approveLoan() Y ProcessLargeLoan approveLoan() Business Service N Response Time > 5ms? SMTP Alert
- 41. Product Interoperability Service Bus ODI BPELPM BPM Tuxedo Service Repository Discover Design Publish Workspace Configure Build Services & Applications Console Synchronize Configure Monitor
- 42. Have Licensing ortechnical questions? • SOA FAQ • OSB FAQ • OESB FAQ • All linked from their respective ias.us pages (start at http://soa.us.oracle.com )