oracle developer day - dbguide.net · 2005-11-04 · bpel의중요성 bpm/soa을하면서web...

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OracleDeveloper Day

http://www.pdffactory.com

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Session #2

SOA기반의 Composite Applications 구현

한정훈

Senior ConsultantOracle Fusion Middleware


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Agenda

ü 서비스지향아키텍쳐

ü Orchestrationü What is BPEL ?ü BPEL Programming Languageü Steps to Build a Business Processü Oracle BPEL Process Manager


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서비스지향아키텍쳐(SOA)란?

우리가하드웨어시스템에서배웠던것 ?

Ø Standard

Ø Reuse

Ø Agility

Ø Flexibility


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서비스지향아키텍쳐

ü SOA is an architectural style whose goal is to achieve loose coupling among interacting software agents

ü Collection of Services that communicate with each other

– Simple data passing– Activity coordination

ü Not new!– TPMs– CORBA– DCOM

SOASOASOAInteroperable

LooselyCoupled

Re-Usable

Composable


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CRM Shipping and Distribution

Order Management

Manufacturing

Integration code – Proprietary Solution

SOA 이전의비즈니스프로세스


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CRM Shipping and Distribution

Order Management

Manufacturing

Service

SOA의비즈니스프로세스


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SOA의비즈니스프로세스

ERP - Billing

Activation

Payment

WSDL/WSIF

XML/XML Schema

SOAP JCA JMS

SHARED SERVICES

Create new cell phoneplan

XSLT/XQuery

BPEL

ORCHESTRATE

Reduce friction, enhance visibility, thrive on change

PORTAL JSR-168

INTERACT/ACCESS

Struts/JSF

Portal

Web Application

API

WS

WS-Security

GATEWAY

SecurityReliabilityLogging

SLADynamic Routing

WS-Management


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Collaborative ApplicationsCollaborative Applications

Business Service OrientationBusiness Service Orientation

Channel & Portal Services(Internal, External)

Channel & Portal Services(Internal, External)

Supp

ly S

ide

Colla

bora

tion

Supp

ly S

ide

Col

labo

ratio

n

Utility Services(Infrastructure, Security, Instrumentation, Management)

Utility Services(Infrastructure, Security, Instrumentation, Management)

Core DataCore Applications

Business Process OrchestrationBusiness Process Orchestration

Dem

and Side CollaborationD

emand Side Collaboration

Core Applications

Core Applications

Core DataCore DataEnterpriseIntegration

Etc….

Procure-to-payOrder-to-CashCommon Application

Services Collaborative Design

캡제미니의서비스아키텍쳐프레임워크

AA BB CC BB CC11

Functions A, B & C are oriented for access as Business Services

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22

Functions exposed as Web Services, using Business Connectors

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33Functions now exposed as Web Services are integrated to form a Business Service

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55

Business Process integrated with Collaborative Apps

55

44

Business Service orchestrated as Business Process

44


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웹서비스를통합하여비즈니스프로세스로

Web Service 1

Web Service 2

Web Service 3

Web Service 4

Web Service 5

Web Service n

Orchestration Requirements


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서비스의오케스트레이션

BPELBPEL

Credit RatingCredit Rating

WSDLWSDL

Service BusService Bus

Star LoanStar Loan

Order EntryOrder Entry United LoanUnited Loan

AADDAAPPTTEERR

AADDAAPPTTEERR

WWSSDDLL

FulfillmentFulfillment

AADDAAPPTTEERR

Application ServerApplication Server


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Composite Applications

SubmitRFQ Get BOM Check

AvailabilityCalculateDiscount

ValidatePermit Approve Create

RFQDeliverRFQ

Portal ERP Java MQ Series Web App Mainframe Email/EDIDatabase

Reusable Services

Quote2Cash A

Quote2Cash B


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SubmitRFQ Get BOM Check

AvailabilityCalculateDiscount

ValidatePermit Approve Create

RFQDeliverRFQ

Reusable Services

BPM과통합

ü 프로세스통합은애플리케이션통합을필요로함.

All computing is part of a business process!

견적요청프로세스

Business Process:수작업과자동화된서비스를포함하는여러단계의비즈니스트랜잭션(multi-step business transactions involving automated services and/or humans)

Portal ERP Java MQ Series Web App Mainframe Email/EDIDatabase


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개발

변경

통합

관리

보안

모니터링

서비스의오케스트레이션

서비스지향아키텍쳐라이프사이클


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BPEL이란?개별서비스들을종단간프로세스로조립하기위한 마크업언어(Markup language for composing a set of discrete services into an end-to-end process flow)

• 10+ years of R&D from MSFT and IBM

• SOAP but also Java, JCA

• Rich Flow Semantics

• Optimized Bindings

• XPATH+XSLT+XQuery

• WS-Security

• A Process is a Service

Determine if Can Fulfill

10:00am

Handle Negative Credit Exception

Discount Service

start

end

BPEL Flow

?

Credit Service InventoryService

Get Discount

Send Credit Application

Receive Credit Result

03:00pm

Send Inventory Request

Receive Inventory Result

<process>

</process>

<switch>

<variable>

<partnerLink>

<partnerLink> <partnerLink>

<faultHandlers>

<receive>

<invoke>

<invoke><flow>

</flow>


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BPEL의역사

2000/05

XLang(Microsoft)

2001/03

BPML(Intallio et al)

2001/05

WSFL(IBM)

2001/06

BPSS(ebXML)

2002/03

BPEL4WS 1.0(IBM, Microsoft)

BPEL4WS 1.1(OASIS)

2002/06 2003/04

WSCI(Sun et al)

WSCL(HP)

2002/08

전용솔루션(Proprietary) 표준(Standard)

2005/2006

WS-BPEL 2.0(OASIS)


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BPEL의중요성

ü BPM/SOA을 하면서 Web service orchestration을 proprietary solution을사용할 것인가?

– 현재 BPEL만이 Oracle, IBM, BEA, Microsoft 가지원하고표준화기구(OASIS)에서추진하는유일한표준

• Gartner believes that BPEL will emerge as the leading industry standard for Web service orchestration and coordination of business processes.

Gartner는 BPEL이Web service orchestration 과비즈니스프로세스의coordination을위한업계선도표준이될것이라고믿는다.

- David Smith, Research Vice President and fellow, Gartner

• BPEL is the future of the integration space.

BPEL은인티그레이션분야의미래다.- John Rymer, Vice President, Forrester Research, Inc


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BPEL –프로그래밍언어

ü Variablesü Activitiesü Control Flowü Scopeü Fault Handlingü Event Handling


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BPEL - Variables

ü 메시지의저장, 재설정및변환에사용ü 메시지의전송및수신에필요

ü 각변수는유형을가진다.Example:<variables>

<variable name="loanApplication"messageType="ns2:LoanServiceRequestMessage"/>

</variables>


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BPEL - Activities

ü 기본 Activities– <invoke>– <receive>– <assign>– <reply>– <throw>– <terminate>– <wait>

ü 구성 Activities– <sequence>– <switch>– <pick>– <flow>– <link>– <while>– <scope>


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BPEL - Activities

ü <invoke>– 서비스를동기및비동기적으로호출

Ex: Invoke Credit Serviceü <receive>

– 메시지의수신,Ex: 프로세스의시작, 비동기웹서비스에서의콜백메시지의수신

ü <reply>– 동기프로세스에서응답의반환, 초기<receive>와연관

ü <assign>– variables, expressions 및 endpoint references 사이에자료를복사– XPath표현식및 XSLT 엔진을사용

Ex: Loan Application의 input payload에서 United Loan input으로자료복사


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BPEL – Scope

ü 비즈니스프로세스를단계적으로분할하는기능ü <scope>은 activity들의실행영역

Ex: PL/SQL Block, Java의 try-catchü BPEL 프로세스는그자체가하나의 <scope>이다ü <scope> 내부에서는로컬변수의선언및그자체에서발생하는예외를처리한다.Ex: GetCreditRating Scope –Credit Service의호출및예외처리


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BPEL – Control Flow

ü BPEL 로직의분기및반복제어기능ü <sequence>는 activities의순차적처리를실행한다.ü <switch>는표현식에의거하여기술된적어도하나의하위

<case>요소, 또는 <otherwise>요소를실행한다.Ex: United loan과 Star loan이제공한금리중에서더낮은것을선택

ü <while>는표현식이 ‘true‘인동안내부 activity들을반복하여실행한다.

ü <flow>는기술된하위노드들을동시에병렬처리한다. Ex: United Loan service와 Star Loan service를동시에호출


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Partner Links

ü 프로세스에서상호연동하는모든서비스들

ü 일반적으로웹서비스를사용Ex: CreditService, UnitedLoanService, StarLoanService

ü 구현된다른 BPEL프로세스를사용할수도있음ü 파트너링크유형

– 각서비스가상호수행하는역할및기능을선언


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BPEL - Fault Handling

ü <faultHandlers>를사용하여각 <scope>의예외처리를수행하여해당 <scope>의완전한실행을수행

ü <catch>를이용하여특정예외를처리Ex: 신용불량예외처리및 process 강제종료

ü 기타모든예외를일괄처리시에는 <catchAll>을사용


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비즈니스프로세스의구축과정

1. 1. Public InterfacePublic Interface의의 정의정의

2. 2. 파트너파트너 일람표의일람표의생성생성

3. 3. 메시지메시지 및및유형의유형의생성생성

4. 4. 변환변환 로직의로직의 구현구현

5. 5. 오케스트레이션오케스트레이션로직의로직의구현구현

6. 6. 반복반복

7. 7. 시험시험 환경환경구축구축

8. 8. 파일럿파일럿 운용운용

9. 9. 잘잘 조정된조정된운영작업운영작업


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단계 1: Public InterfacePublic Interface의의 정의정의

• 구축되어질 BPEL 프로세스의WSDL 기술

LoanFlow.wsdl

WSDL

LoanFlow

initiate

onResult

Client Callback

LoanRowBPEL Process


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단계 2: 파트너파트너일람표의일람표의 생성생성

• BPEL 프로세스의파트너링크로호출될서비스의목록• 각파트너링크에대하여, 호출되어질역할을기록 (choreography)• 호출자와피호출자의관계를규명

bpel.xml

Dep

loym

ent D

escr

ipto

rEn

d po

int r

efer

ence

bi

ndin

g

LoanFlow.wsdl

WSDL

LoanFlow

initiate

onResult

Client Callback

LoanRowBPEL Process Credit RatingCredit Rating

WWSSDDLL

Web ServiceWeb Service

Start LoanStart LoanWWSSDDLL


United LoanUnited LoanWWSSDDLL



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단계 3: 메시지메시지및및유형의유형의 생성생성

• BPEL 프로세스에서사용되어질 XML 문서와메시지의유형을기술한XML 스키마

bpel.xml

Dep

loym

ent D

escr

ipto

rEn

d po

int r

efer

ence

bi

ndin

g

LoanFlow.wsdl

WSDL

LoanFlow

initiate

onResult

Client Callback

Credit RatingCredit RatingWWSSDDLL






LoanRowBPEL Process

Schedule Response

variablesvariablesSchedule Request

Exchange Requestmore…


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단계 4: 변환변환 로직의로직의 구현구현

• BPEL 프로세스에서사용되어질다양한유형에대한상호연결정보를기술한 XSLT와 XQuery 파일

bpel.xml

Dep

loym

ent D

escr

ipto

rEn

d po

int r

efer

ence

bi

ndin

g

LoanFlow.wsdl

WSDL

LoanFlow

initiate

onResult

Client Callback







LoanRowBPEL Process

Schedule MapSchedule MapXSLTXSLT

WWSSDDLL

transformationtransformation

variablesvariablesloanApplicationcrInputcrOutputmore…


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단계 5: 오케스트레이션오케스트레이션 로직의로직의구현구현

• 종단간비즈니스프로세스안에서파트너링크를통하여상호작동하도록 연결

• 예외처리와대기시간종료가적정하게작동하도록구현

Select Lowest Offer

Negative CreditfaultHandler

Synchronous <invoke>

<receive>

<invoke>

<process>

?

<receive>.

<invoke> <invoke>

Get Rating

Send LoanApplication

Receive Loan Offer <receive>.Receive

Loan Offer

Send LoanApplication Star LoanStar Loan

Credit RatingCredit Rating

United LoanUnited Loan


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단계 6: 반복

• 새로운파트너의추가• 예외관리의계속적인개선• 자동호출및복귀시험

LoanFlow.wsdl

WSDL

LoanFlow

initiate

onResult

Client Callback

orchestration

bpel.xml

Dep

loym

ent D

escr

ipto

rEn

d po

int r

efer

ence

bi

ndin

g







LoanRowBPEL Process



WWSSDDLL



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단계 7: 시험시험환경환경 구축구축

• 각 End-point에대한시험서비스구축(다른BPEL프로세스또는웹서비스에서호출)

• 호출및피호출관계에대한시험시나리오생성• 고장시험, 장시간운용시험, 성능시험, 스트레스시험

Dummy Test Services

LoanFlow.wsdl

WSDL

LoanFlow

initiate

onResult

Client Callback

orchestration

bpel.xml

Dep

loym

ent D

escr

ipto

rEn

d po

int r

efer

ence

bi

ndin

g







LoanRowBPEL Process



WWSSDDLL



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단계 8: 파일럿파일럿운용운용

• BPEL 프로세스를실제 End-point로연결• 복귀시험의운용

Integration over internet/intranet

LoanFlow.wsdl

WSDL

LoanFlow

initiate

onResult

Client Callback

orchestration

bpel.xml

Dep

loym

ent D

escr

ipto

rEn

d po

int r

efer

ence

bi

ndin

g







LoanRowBPEL Process



WWSSDDLL



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단계 9: 잘잘 조정된조정된 운영작업운영작업

• 예외관리(Exception Management)• Web Service 관리프레임워크와의통합• 보안(Security)• 보관(Archiving)


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Oracle BPEL Process Manager

Enterprise-strength infrastructure for designing, deploying and managing BPEL business processes

• Comprehensive and nativeBPEL implementation

• Easy-to-use modeling tool

• Scalable and reliable engine

• Flexible binding framework

• Rich management and monitoring

• Get up and running in less than 15 minutes!

BAMBAM

Application Server Application Server ( Oracle, BEA, JBoss, IBM)( Oracle, BEA, JBoss, IBM)

TransformationTransformation CorrelationCorrelation

WSIF BindingWSIF Binding QueuingQueuing

SAPSAP EBSEBS DBDB FileFile ……

XSLTXSLTMapperMapper

AdapterAdapterFactoryFactory

BPELBPELConsoleConsole

BPELBPELDesignerDesigner WorkflowWorkflow RuleRule

BPEL EngineBPEL Engine

Dehydration Store

(Oracle Database)

Oracle BPEL Process ManagerOracle BPEL Process Manager


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각종플랫폼을뛰어넘어…

Application Serverü Oracle Application Serverü WebLogic Serverü WebSphereü JBoss

Databaseü Oracle Databaseü SQL Serverü Oracle Liteü Sybaseü Pointbase

IDEü JDeveloperü Eclipse

Operating Systemsü Linuxü Window XP/2003ü Solarisü HP UXü zOS


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Oracle Fusion MiddlewareA Complete SOA Platform

Event ServicesWeb Services Rules Engine

SOA Run time

Enterprise Grid

Portals Wireless OCS

J2EE

BPEL Process ManagerBusiness Processes

Information Access and InsightOWB Discoverer BAM

B2B Orchestration Pre-built Business Flows

Enterprise Service Bus

Data Hubs and IntegrationOracle Data Hubs 200+ Adapters

Jdeveloper

Development EnvironmentApplication Development Framework

OID Security and Identity M

anagement

Dir. Integration

User P

rov.S

SO

Federated IDs

Topo

logy

Svc

s.

Sys

tem

s an

d A

pplic

atio

ns M

anag

emen

tJM

X C

onso

leA

SLM

Life

cycl

e M

gmt.


39

PORTAL

Loan Flow Demo

LOAN FLOW BPEL PROCESS

receive

getSSN

invokeinvoke

select

PORTAL

Web

Ser

vice

s In

terf

ace:

XM

L, S

OAP

, W

SDL,

WSI

F

Credit Rating.NET

Oracle eBusinessSuite

Async.Loan Providers

receivereceive

review

United Load Star Loan

end

5-15 min

getRating

Exception Task

Notification Service


40

D E M O N S T R A T I O N


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Q U E S T I O N SQ U E S T I O N SA N S W E R SA N S W E R S


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OracleDeveloper Day


oracle developer day - dbguide.net · 2005-11-04 · bpel의중요성 bpm/soa을하면서web...

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