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ORACLE Service Bus 11g For the Busy IT Professional DOAG2010
munz & more Dr. Frank Munz
November 2010
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INTRODCUTION getting started
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Agenda
1. Introduction 2. Service Bus Positioning 3. Core OSB Features, Development 4. Monitoring, Security and Clustering
(c) 2009/2010 Dr. Frank Munz / munz & more (Event:DOAG Nürnberg 11/2010) Slide #3
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• Frank Munz • Research in supercomputing and medical imaging • Worked for and with TIBCO, BEA and Oracle • Founded munz & more in 2006 • Focus Oracle middleware …
Who is this guy?
Slide #4 (c) 2009/2010 Dr. Frank Munz / munz & more (Event:DOAG Nürnberg 11/2010)
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munz & more http://www.munzanmdore.com
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SERVICE ORIENTED ARCHITECTURE?
service bus positioning
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Interwoven silos with point to point integration
The Enemy
(c) 2009/2010 Dr. Frank Munz / munz & more (Event:DOAG Nürnberg 11/2010) Slide #7
Portal RichClient
WebApp
Fraud Billing Network CRM
web service? -‐>
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General Questions
Slide #8 (c) 2009/2010 Dr. Frank Munz / munz & more (Event:DOAG Nürnberg 11/2010)
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 L
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Why not use e.g. EJBs then?
Similar situation for EJBs: • Java only • Changes in interface require new stubs -> changes in client jar file
Slide #9 (c) 2009/2010 Dr. Frank Munz / munz & more (Event:DOAG Nürnberg 11/2010)
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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 (c) 2009/2010 Dr. Frank Munz / munz & more (Event:DOAG Nürnberg 11/2010)
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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 (c) 2009/2010 Dr. Frank Munz / munz & more (Event:DOAG Nürnberg 11/2010)
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EAI reduces complexity from O(n*n) to O(n): One change per system changed.
Reduced Complexity
(c) 2009/2010 Dr. Frank Munz / munz & more (Event:DOAG Nürnberg 11/2010) Slide #12
EAI -‐>OSB
Portal RichClient WebApp
Fraud FTP
Billing JMS
Network EJB
CRM JAXWS
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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 (c) 2009/2010 Dr. Frank Munz / munz & more (Event:DOAG Nürnberg 11/2010)
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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 (c) 2009/2010 Dr. Frank Munz / munz & more (Event:DOAG Nürnberg 11/2010)
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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 (c) 2009/2010 Dr. Frank Munz / munz & more (Event:DOAG Nürnberg 11/2010)
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Service Bus
-> Service Virtualization Layer
Slide #16 (c) 2009/2010 Dr. Frank Munz / munz & more (Event:DOAG Nürnberg 11/2010)
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Drag and Drop Programming
BPM, EAI and ESB: They all have executable, graphical flow diagrams.
(c) 2009/2010 Dr. Frank Munz / munz & more (Event:DOAG Nürnberg 11/2010) Slide #17
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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 (c) 2009/2010 Dr. Frank Munz / munz & more (Event:DOAG Nürnberg 11/2010)
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SOA Definition
"Service-Oriented Architecture is an IT strategy that organizes the discrete functions contained in enterprise applications into interoperable, standards-based services that can be combined and reused quickly to meet business needs."
Slide #19 (c) 2009/2010 Dr. Frank Munz / munz & more (Event:DOAG Nürnberg 11/2010)
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What is SOA?
SOA = BPM + ESB + X
so what is X? Repository, Registry, Governance, … and what happened with EAI? often replaced by ESB
Slide #20 (c) 2009/2010 Dr. Frank Munz / munz & more (Event:DOAG Nürnberg 11/2010)
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ORACLE SERVICE BUS OVERVIEW
basic features & architecture
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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 (c) 2009/2010 Dr. Frank Munz / munz & more (Event:DOAG Nürnberg 11/2010)
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(c) 2009/2010 Dr. Frank Munz / munz & more (Event:DOAG Nürnberg 11/2010) Slide #23
Unified RunJme
Policy Manager
Oracle Service Bus
Common JCA-based connectivity infrastructure
Web-‐based console
Mediator
Oracle WLS
WLIntegraJon WLI
SQL SAP etc.
MQSeries ALDataServicesPlaPorm ALDSP
SOAP, WS JMS,RMI
DSP, SOAP JPD, SOAP
SOAP, (s)Tp, file
XQuery MQ
Oracle Tuxedo
Business Rules Human Workflow BPEL/BPMN
Eclipse / JDeveloper
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Service Bus Functionality Overview I
• Loose coupling • Location Transparency • Dynamic Routing • Schema Transformation • Protocol mix and match
Slide #24 (c) 2009/2010 Dr. Frank Munz / munz & more (Event:DOAG Nürnberg 11/2010)
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Service Bus Functionality Overview II
• Service Aggregation • Load balancing, Clustering for Availability • Security • Monitoring • Configuration driven
Slide #25 (c) 2009/2010 Dr. Frank Munz / munz & more (Event:DOAG Nürnberg 11/2010)
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Loose Coupling / Mediation
1. Clients talk to service bus (NOT directly to service implementation)
2. OSB intercepts call = Service Mediation 3. OSB calls service implementation OSB acts as "service virtualization layer" OSB can adapt/change message in step 2.
Slide #26 (c) 2009/2010 Dr. Frank Munz / munz & more (Event:DOAG Nürnberg 11/2010)
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Proxy and Business Service
Oracle Service Bus
ProxyServiceB BusinessServiceY Client2 ServiceImpl2
BusinessServiceX ProxyServiceA ServiceImpl1
ServiceImpl1
Client1
Slide #27 (c) 2009/2010 Dr. Frank Munz / munz & more (Event:DOAG Nürnberg 11/2010)
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Location Transparency
OSB uses Business Services Business Service = How to talk to service implementation This configuration can by changed anytime.
Slide #28 (c) 2009/2010 Dr. Frank Munz / munz & more (Event:DOAG Nürnberg 11/2010)
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Transport and Binding Layer
Oracle Service Bus
ProxyServiceB BusinessServiceY Client2 ServiceImpl2
BusinessServiceX ProxyServiceA ServiceImpl1
ServiceImpl1
Client1
Transport
Bind
ing
Transport
Bind
ing
Slide #29 (c) 2009/2010 Dr. Frank Munz / munz & more (Event:DOAG Nürnberg 11/2010)
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Context Variables
logical variable Purpose $header SOAP header for SOAP
Else: empty <soap:Header/>
$body SOAP body for SOAP Else: <soap:Body> with enJre payload
$attachements SOAP a`achements
$fault typed error informaJon
$inbound service, transport and security informaJon of inbound protocol
$outbound outbound protocol
$operation current operaJon
Variables are filled automatically
Slide #30 (c) 2009/2010 Dr. Frank Munz / munz & more (Event:DOAG Nürnberg 11/2010)
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Message Flow in Proxy
Pipeline Stage Action Request path Response path Routing Node Route Node
A
A
A A
R R
A A
A A
A A A A A
A request response
Slide #31 (c) 2009/2010 Dr. Frank Munz / munz & more (Event:DOAG Nürnberg 11/2010)
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Overview Actions
Flow Control Message Processing Routing
Slide #32 (c) 2009/2010 Dr. Frank Munz / munz & more (Event:DOAG Nürnberg 11/2010)
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Log Action
Logs Xquery expression with annotation text and severity level to stdout. OSB console:
Slide #33 (c) 2009/2010 Dr. Frank Munz / munz & more (Event:DOAG Nürnberg 11/2010)
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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 (c) 2009/2010 Dr. Frank Munz / munz & more (Event:DOAG Nürnberg 11/2010)
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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 (c) 2009/2010 Dr. Frank Munz / munz & more (Event:DOAG Nürnberg 11/2010)
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Eclipse: XQuery Mapper
Import Xquery from Eclipse as OSB resource Slide #36 (c) 2009/2010 Dr. Frank Munz / munz & more (Event:DOAG Nürnberg 11/2010)
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Xquery Join
for $priceRequest in $priceQuote1/ns2:priceRequests/ns2:priceRequest, $availRequest in $availRequest1
where data($priceRequest/ns2:widgetId) = data($availRequest/ns0:widgetId)
return <quoteResponse> <unitPrice>
{data($priceRequest/ns2:price)} </unitPrice>
<requestedQuanity> {data($availRequest/ns0:requestedQuanity)}
</requestedQuanity> </quoteResponse> }
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Protocol Adaption
Oracle Service Bus
ProxyServiceB BusinessServiceY file File
BusinessServiceX ProxyServiceA email
JMS
EJB
Tuxedo
Slide #38 (c) 2009/2010 Dr. Frank Munz / munz & more (Event:DOAG Nürnberg 11/2010)
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JMS Endpoint URI
Slide #39 (c) 2009/2010 Dr. Frank Munz / munz & more (Event:DOAG Nürnberg 11/2010)
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OSB Admin Interfaces
• Prior to version 3 only web based GUI • Web based GUI for configuration based runtime changes, monitoring and management. No deployment necessary! • WLS admin console for underlying configuration • Eclipsed based development started with OSB 3.0 -> different development process
Slide #40 (c) 2009/2010 Dr. Frank Munz / munz & more (Event:DOAG Nürnberg 11/2010)
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OSB Console
http://host:port/sbconsole used for: Operations Development Monitoring Search Import / Export Testing
Slide #41 (c) 2009/2010 Dr. Frank Munz / munz & more (Event:DOAG Nürnberg 11/2010)
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Eclipse Console
(c) 2009/2010 Dr. Frank Munz / munz & more (Event:DOAG Nürnberg 11/2010) Slide #42
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MONITORING what is happening inside?
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Questions addressed
How long does it take to execute this service on average? Send me an alert if takes 5 times longer. What was the longest execution time ever? How often is the login service on average called during 10 minutes?
Slide #44 (c) 2009/2010 Dr. Frank Munz / munz & more (Event:DOAG Nürnberg 11/2010)
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Server Health
Click on Server Snapshot for per server view
Slide #45 (c) 2009/2010 Dr. Frank Munz / munz & more (Event:DOAG Nürnberg 11/2010)
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Service Health
• Overview -> click Name for details • Select services with error
Slide #46 (c) 2009/2010 Dr. Frank Munz / munz & more (Event:DOAG Nürnberg 11/2010)
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Detail: Service Metrics
Slide #47 (c) 2009/2010 Dr. Frank Munz / munz & more (Event:DOAG Nürnberg 11/2010)
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Operation Metrics
Good result for jitterAndMem implementation: (errors are provoked with illegal test data)
Slide #48 (c) 2009/2010 Dr. Frank Munz / munz & more (Event:DOAG Nürnberg 11/2010)
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Detail: Action Metrics
Slide #49 (c) 2009/2010 Dr. Frank Munz / munz & more (Event:DOAG Nürnberg 11/2010)
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SLA Conditions
Depend on type count vs. min/max/avg Conditions can be combined
Slide #50 (c) 2009/2010 Dr. Frank Munz / munz & more (Event:DOAG Nürnberg 11/2010)
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Reporting Console
Search for reports via key Purge all reports or range asynchronously
Slide #51 (c) 2009/2010 Dr. Frank Munz / munz & more (Event:DOAG Nürnberg 11/2010)
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SECURITY inbound, outbound, authorized & single signed on
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2 Scenarios...
Web Services Security Pass-Through: • Proxy ignores WS-Security header, payload encrypted • OSB forwards message to service implementation
Active intermediary: • Security header examined • Encrypted messages get decrypted at proxy service
ProxyService BusinessService Client ServiceImpl
Slide #53 (c) 2009/2010 Dr. Frank Munz / munz & more (Event:DOAG Nürnberg 11/2010)
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Message Level Security
Based on WS-Security Standards Use WS-Policy assertion to request message level security for proxy service • Authentication • Integrity • Confidentiality Example: Secure credit card details only
Slide #54 (c) 2009/2010 Dr. Frank Munz / munz & more (Event:DOAG Nürnberg 11/2010)
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Transport Level Security
Protocols like http, ftp, jms over SSL Easier to configure Endpoint to endpoint only -> messages are not encrypted in between
Slide #55 (c) 2009/2010 Dr. Frank Munz / munz & more (Event:DOAG Nürnberg 11/2010)
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Service Impl
SAML and WLS / OSB
SAML Pass-Through = • OSB = passive intermediary
• OSB forwards SAML token to service impl.
Active intermediary
Oracle Service Bus
AuthenJcator SAML
CredenJal Mapper
Client SAML IdenJty Asserter
Slide #56 (c) 2009/2010 Dr. Frank Munz / munz & more (Event:DOAG Nürnberg 11/2010)
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CLUSTERING OSB availability, load balancing and throttling
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Oracle Service Bus Cluster
Managed Server1
Managed Server2
WLS Cluster
Distributed OSB Cluster
ProxyService BusinessService ServiceA
BusinessService ProxyService ServiceA
ServiceA
Load Balancer
Clients Clients Clients
Slide #58 (c) 2009/2010 Dr. Frank Munz / munz & more (Event:DOAG Nürnberg 11/2010)
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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 (c) 2009/2010 Dr. Frank Munz / munz & more (Event:DOAG Nürnberg 11/2010)
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OSB 11G new version
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New in OSB 11g
• WLS 10.3.3 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 (c) 2009/2010 Dr. Frank Munz / munz & more (Event:DOAG Nürnberg 11/2010)
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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 email endpoints for load balancing
Slide #62 (c) 2009/2010 Dr. Frank Munz / munz & more (Event:DOAG Nürnberg 11/2010)
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Questions?
(c) 2009/2010 Dr. Frank Munz / munz & more (Event:DOAG Nürnberg 11/2010) Slide #63
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Middleware and Cloud Computing Book Published!
(c) 2009/2010 Dr. Frank Munz / munz & more (Event:DOAG Nürnberg 11/2010) Slide #64
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Oracle WebLogic 12c Book
(c) 2009/2010 Dr. Frank Munz / munz & more (Event:DOAG Nürnberg 11/2010) Slide #65
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… more ?
Win a copy of the book! http://www.munzandmore.com/blog Come to my Cloud Computing Talk:
-> today @3pm, in this room (c) 2009/2010 Dr. Frank Munz / munz & more (Event:DOAG Nürnberg 11/2010) Slide #66
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munz & more Training and Consulting • WebLogic Admin Training 9 – 12c • WebLogic Monitoring and Tuning • Oracle Service Bus Training • Cloud Training (AWS, Google, Oracle Cloud)
(c) 2009/2010 Dr. Frank Munz / munz & more (Event:DOAG Nürnberg 11/2010) Slide #67