ORACLE INTRODCUTION. Service Bus 11g For the Busy IT Professional. munz & more Dr. Frank Munz November getting started

Transcription

1 ORACLE Service Bus 11g For the Busy IT Professional munz & more Dr. Frank Munz November 2010 getting started INTRODCUTION 1

2 Agenda 1. Introduction 2. Service Bus Positioning 3. Core OSB Features, Development 4. Monitoring, Security and Clustering Slide #3 Who is this guy? Frank Munz Research in supercomputing and medical imaging Worked for and with TIBCO, BEA and Oracle Founded munz & more in 2006 Focus Oracle middleware Slide #4 2

3 munz & more service bus positioning SERVICE ORIENTED ARCHITECTURE? 3

4 The Enemy Interwoven silos with point to point integration Portal RichClient WebApp web service? -> Fraud Billing Network CRM Slide #7 General Questions Where is your business logic? What if you need to change it? How many systems require changes if one system changes? Do Web Services help? -> tight coupling Slide #8 4

5 Enterprise Application Integration (EAI) EAI tries to solve the integration problem Examples of EAI System are: BEA Weblogic Integration (=WLI, discontinued) TIBCO Business Works Vitria WebMethods Slide #10 EAI Characteristics Addresses the integration problem -> Supports plenty of technical protocols You need to DEPLOY the solution (EAR / JVM) Does NOT support real business processes -> Technical level, NOT business level -> No long running processes (e.g. 10 years?) -> Not good in versioning Slide #11 5

6 Reduced Complexity EAI reduces complexity from O(n*n) to O(n): One change per system changed. Portal RichClient WebApp EAI ->OSB Fraud FTP Billing JMS Network EJB CRM JAXWS Slide #12 Business Process Management (BPM) BPM deals with business workflows Ideally: what you design is executable -> Visio templates do not qualify as BPM Examples of BPM Software: Oracle BPM = Aqualogic BPM = Fuego TIBCO IProcess & TIBCO InConcert Slide #13 6

7 BPM Characteristics Business architect draws executable workflow that makes sense for business -> business logic Human interaction Long running processes (e.g. 2 yearly vehicle inspection stickers, TÜV) Versioning of running processes Slide #14 Service Bus Similar to EAI (same protocols) but configuration driven Service Bus is stateless Often replaces EAI: Weblogic Integration (=EAI) is obsolete now You design message flows on a technical level Slide #15 7

8 Service Bus -> Service Virtualization Layer Slide #16 Drag and Drop Programming BPM, EAI and ESB: They all have executable, graphical flow diagrams. Slide #17 8

9 Why OSB is not BPM nor EAI not a BPM system: -> neither long running nor stateful nor versioning more then an EAI system: -> configuration driven, registry / repository integration, SOA focused and better monitoring with SLAs. OSB typically does NOT host the services Slide #18 basic features & architecture ORACLE SERVICE BUS OVERVIEW 9

10 Oracle Service Bus OSB 10gR3 OSB was BEA Aqualogic Service Bus (ALSB) ALSB based on code from Weblogic Integration (EAI) Key product of the BEA acquisition Integrates with UDDI V3 registry e.g. Oracle Enterprise Registry Slide #22 BPEL/BPMN Human Workflow Business Rules Mediator Unified Runtime Common JCA-based connectivity infrastructure Policy Manager Eclipse / JDeveloper Oracle Service Bus Web-based console JPD, SOAP DSP, SOAP XQuery MQ SOAP, WS JMS,RMI Oracle WLS WLIntegration WLI Oracle Tuxedo ALDataServicesPlatform ALDSP SOAP, (s)ftp, file SAP etc. SQL MQSeries Slide #23 10

11 Service Bus Functionality Overview I Loose coupling Location Transparency Dynamic Routing Schema Transformation Protocol mix and match Slide #24 Service Bus Functionality Overview II Service Aggregation Load balancing, Clustering for Availability Security Monitoring Configuration driven Slide #25 11

12 Proxy and Business Service Oracle Service Bus ServiceImpl1 Client1 ProxyServiceA BusinessServiceX ServiceImpl1 Client2 ProxyServiceB BusinessServiceY ServiceImpl2 Slide #27 Transport and Binding Layer Oracle Service Bus ServiceImpl1 Client1 Client2 Transport Binding ProxyServiceA ProxyServiceB BusinessServiceX BusinessServiceY Binding Transport ServiceImpl1 ServiceImpl2 Slide #29 12

13 Context Variables Variables are filled automatically logical variable $header $body $attachements $fault $inbound $outbound $operation Purpose SOAP header for SOAP Else:empty<soap:Header/> SOAP body for SOAP Else: <soap:body> with entire payload SOAP attachements typed error information service, transport and security information of inbound protocol outbound protocol current operation Slide #30 Message Flow in Proxy A A A A A A A A request A A R A A A response Pipeline Stage Action A Request path Response path Routing Node Route Node R Slide #31 13

14 Overview Actions Flow Control Message Processing Routing Slide #32 Log Action Logs Xquery expression with annotation text and severity level to stdout. OSB console: Slide #33 14

15 Dynamic Routing Routing based on runtime conditions: Outcome of call to another service Logical expression Content of message body Content of transport header Slide #34 Schema Transformation XSD schema -> XSD schema binary (MFL) -> XSD schema XQuery or XSLT Example: Transform SAP address format to company-wide address format. Slide #35 15

16 Eclipse: XQuery Mapper Import Xquery from Eclipse as OSB resource Slide #36 Xquery Join for $pricerequest in $pricequote1/ns2:pricerequests/ns2:pricerequest, $availrequest in $availrequest1 where data($pricerequest pricerequest/ns2:widgetid) = data($availrequest availrequest/ns0:widgetid) return <quoteresponse> <unitprice> {data($pricerequest/ns2:price)} </unitprice> <requestedquanity> {data($availrequest/ns0:requestedquanity)} </requestedquanity> </quoteresponse> } 16

17 Protocol Adaption Oracle Service Bus JMS ProxyServiceA BusinessServiceX file ProxyServiceB BusinessServiceY File EJB Tuxedo Slide #38 JMS Endpoint URI Slide #39 17

18 OSB Console used for: Operations Development Monitoring Search Import / Export Testing Slide #41 Eclipse Console Slide #42 18

19 what is happening inside? MONITORING Server Health Click on Server Snapshot for per server view Slide #45 19

20 Service Health Overview -> click Name for details Select services with error Slide #46 Detail: Service Metrics Slide #47 20

21 Operation Metrics Good result for jitterandmem implementation: (errors are provoked with illegal test data) Slide #48 Detail: Action Metrics Slide #49 21

22 SLA Conditions Depend on type count vs. min/max/avg Conditions can be combined Slide #50 Reporting Console Search for reports via key Purge all reports or range asynchronously Slide #51 22

23 inbound, outbound, authorized & single signed on SECURITY 2 Scenarios... Web Services Security Pass-Through: Proxy ignores WS-Security header, payload encrypted OSB forwards message to service implementation Client ProxyService BusinessService Active intermediary: Security header examined Encrypted messages get decrypted at proxy service ServiceImpl Slide #53 23

24 availability, load balancing and throttling CLUSTERING OSB Distributed OSB Cluster Clients Clients Clients Load Balancer Oracle Service Bus Cluster Managed Server1 ProxyService BusinessService Managed Server2 ProxyService BusinessService WLS Cluster ServiceA ServiceA ServiceA Slide #58 24

25 Throttle Limit number of concurrent messages to business service. Exceeding messages put in non-pers. queue. Queue full or expiration drops messages with error message Slide #59 new version OSB 11G 25

26 New in OSB 11g WLS installation then OSB 11g with Oracle Unified Installer Same MW_HOME as SOA Suite Coherence result cache: One single cache for all business services JCA Adapter from SOA suite 11g supported Slide #61 New in OSB 11g Message flow starts own JTA TX JEJB = native EJB inbound Proxy service exposed as stateless session bean EJB 3 supported (finally ) SOA-DIRECT protocol for SOA suite interaction Multiple endpoints for load balancing Slide #62 26

27 Questions? Slide #63 Middleware and Cloud Computing Book Available November 2010 Slide #64 27

28 more? Win a copy of the book! Come to my Cloud Computing Talk: -> in this room Slide #65 munz & more Training and Consulting Slide #66 28