Getting Started With Oracle SoA 8

8/13/2019 Getting Started With Oracle SoA 8

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Getting Started with Oracle SoA

Oracle SOA Fault Handling in BPEL Process Lab#8

Description BISP is committed to provide BEST learning material to the beginners

and advance learners. In the same series, we have prepared a complete

end-to end Hands-on Beginners Gide !or "racle So#. The docment

!ocses on $alt Handling in a BPE% process.&oin or pro!essional training

program and learn !rom e'perts.

Histor()*ersion +escription hange #thor Pblish +ate. Initial +ra!t Shiva /ant Pande( 0st 1ov 00. 2eview3 #mit Sharma 04th1ov 00

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!ontents.................................................................................................................................................... 0

ontents....................................................................................................................................... 0

56 7hat is !alt handling in BPE% process 8..............................................................................9

Bsiness !alts) ........................................................................................................................ 9

2ntime !alts) .........................................................................................................................9

Selection !ailre) 7rong :-Path e'pression reslts selection !ailre !alt ...............................;

reate database connection in resorce palette ) ...................................................................

Pro?ect on rntime !alts).......................................................................................................... 4

Topper stdent pro?ect with !alt handling =remote !alt6)......................................................

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$alt Handling in a BPE% process

Q) What is fault handling in BPEL process ?

#6 $alt handling allows a BPE% process to handle error messages or e'ceptions retned b(

otside web services @ to generate error messages in response to bsiness or rntime !alts.

Business faults:

Bsiness !alts are application -speci!ic !alts that are generated within the BPE% process

These are also called cstom !alts

Aan!actred b( developer

catch !alt1ameCDns)!alt1ameD !alt*ariableCDvar1ameD

Runtime faults:2ntime !alts are the reslt o! problems within the rnning o! the BPE% processservice component or web service .These !alts are not ser-de!ined, and are thrown b( the

s(stem .

Binding !alt ) 7hen server is p @ Service is down then this !alt is Fnown as binding !alt

2emote !alt ) 7hen third part( service is down or invocation !ailed then this !alt is Fnown

as remote !alt .



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Selection failure: Wrong X-Path epression results selectionfailure fault !

1"TE ) Be!ore going throgh !orward we have to create oracle mds =meta data store6 @

database in resorce palette @ nder I+E connections which is located in le!t pane or =ctrl

shi!to6 .

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"reate data#ase connection in resource palette :

S"EP se ctrlshi!to to view 2esorce Palette on le!t pane as shown below )

S"EP $) licF on new icon --- 1ew onnection ---- +atabase

S"EP %) Edit +atabase onnection , $ill all reired blanFs !ields as it is !illed

in pictre shown below

Pt radio btton on I+E onnections

onnection 1ame) devJmds



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onnection t(pe ) "racle=&+B6

sername ) devJmds =as on choice6

Password ) welcome =as on choice6

clicF on save password

+river ) thin

Host 1ame) localhost

&+B Port )


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1ow sccess!ll( +atabase connection is created in resorce palette.

"reate mds $meta data store ) connection in resource palette :

S"EP ) se ctrlshi!to to view 2esorce Palette on le!t pane

S"EP $) licF on new icon --- 1ew onnection ---- S"#-A+S

S"EP %) Edit S"#-A+S onnection , $ill all reired blanFs !ields as it is !illed

in pictre shown below

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onnection 1ame ) dev mds conn

onnect String ) ?dbc)oracle)thin)Llocalhost)


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S"EP '1ow right clicF icon @ select re!resh .

E'pand I+E connection nder 2esorce Palette @ observe that have sccess!ll( created

S"#-A+S .

1"TE ) 1ow as it is a meta data store @ so it contains all deplo(ed composites nder

devJmdsJconn as shown below .

Pro%ect on runtime faults:Su((ar))* 2ntime !alts are the reslt o! problems within the rnning o! the BPE% processservice component or web service @ when third part( service is down or invocation !ailed then!alt is Fnown as remote !alt .So in TopperStdentPro?ect TopperStdentService calling third part( web service

ProcessStdentService so that this service done all processing @ retrn response to callingservice so !or this on shtting down the ProcessStdent composite inside enterprise managerthen it will be nable to repl( response @ hence calling service i.e TopperStdentService willerror ot 2emote !alt , so or aim is to handle or catch this remote !alt or rn time !altthrogh catch activit( @ repl( this !alt to the client or consmer o! TopperStdentServicealso invoFe a new third part( service i.e Stdent$%HService !or sending this !alt b( emailnoti!ication to the admin*.



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&opper student pro%ect 'ith fault handling $remote fault):Step+eplo( pro?ect b( clicFing TopperStdentPro?ect.

+eplo(ment $inished.

1ote) Be!ore +eplo(ment Start 7eblogic #dmin Server as discssed in m( previos docment"racle Soa Part I* +oc.Step $) licF on Browser icon shown below)

Step %) Start (or enterprise manager b( writing rl http) NNlocalhost)>NemN



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1ote ) Here localhost is application server @ > is a port in which enterprise manager isrnning.

Step & %ogin sing credentialsser 1ame )weblogic

Password ) welcomeclicF on login

Step ' 7e have sccess!ll( login inside Enterprise manager g =$armJdevJsoa6we can clearl( observe here that admin server is p @ all deplo(ment stats is also p it meansthat or admin server is rnning .1ow In le!t pane o! window nder $armJdevJsoa clicF on S"# radio btton now again e'pand@ nder de!alt we can easil( see all the deplo(ed pro?ects.



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1ow observe here that stats o! all composites are p here .

Step +licF twice on ProcessStdent on le!t pane o! window.



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Step ,Sht down the composite ProcessStdent @ see the con!irmation on screen as shownbelow)

Step 8) "bserve red #rrow pointing down ward means that this composite is shtdown@ also see con!irmation below red arrow .

Step -licF on Test tab shown below



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Step .) Provide ont nmber @ !ill all empt( reired !ields

Step "bserve care!ll( that no !ield le!t empt(



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Step $licF on Test 7eb Service

#nd get 2esponse shown below)

Step %"bserve 7eb service invocation !ailed warning it means remote !alt becase thirdpart( service is nable to provide service as process stdent composite is sht down



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Step &) doble clicF on TopperStdentPro?ect @ see that the !irst instance is created bt @ itsinstance state is completed bt !alted @ thatOs wh( we are nable to get response

since s(stem is !alted @ hence there are error messages shown below @ clicF on instanceshown in green bo'.

Step ') "n clicFing instance we come on $alt Trace 7indow observe here there are !or$alts @ all t(pe o! instances state are !alted .

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Step +) licF on $low @ see the !low diagram @ notice that the invoFe process is !alted here

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Step ,) licF on $alts @ see remote !alt Error Aessage .

So till here we have seen that since ProcessStdent stats is down we !ind error messages asremote !alt @ nable to get topper as response .

So !rom here idea o! $alt handling arises i.e how to handle sch !alts @ noti!( these !alts toadmin so that he can agai start the process stdent composite or p the down server .

Step 8) reate Error.'sd nder ProcessStdent N'sd .

design !irst Error Elementthen comple' t(pe error @ elements o! comple' t(pe o! error isshown below

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Step $Since Error 'sd is created then open ProcessStdentPh(sical location @ clicF 'sd!older



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Step $$op( Error.'sd !ile !rom ProcessStdent @ paste inside ph(sical location o!TopperStdentPro?ect---'sd !older



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Step $%) licF on re!resh @ see that we have sccess!ll( imported the error .'sd insideTopperStdentPro?ect .

Step $&"pen Stdent%ist.'sd in design mode @ right clicF on target namespace @ clicF onimport



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Step $') 1ow licF on sorce mode



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Step $+7rite namespace @ schema location o! the imported error 'sd as shown below)

Step $,2egister Error 'sd namespace inside 'sd schema with its pre!i' Derrob? D

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Step $8 licF on design mode @ see that importing error 'sd in Stdent%ist.'sd is complete .

Step $-) 1ow design two elements inside Stdent%ist2esltT(pe @ rename !irst as $alt+ata



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Step %.)licF on sorce mode @ edit element

Edit as shown below in red bo' , here we are re!erring Error 'sd'sd)element re!CDerrob?)ErrorDN

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Step %licF on design mode @ see re!erenced error element

Step %$) E'pand Error @ observe all sb elements

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Step %%)1ow see complete Stdent%ist 'sd in design mode in which TopperStdent2esponsecontains $alt+ata

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Step %&) "pen TopperStdentProcess.bpel @ clicF on catch activit( to catch remote !alts

Step %') 2ight licF on atch #ctivit( @ clicF Edit



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Step %+) licF on Browse to select S(stem !alts

Step %,) Select remote $alt @ clicF "F



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Step %8licF "F



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Step %-) +rag @ drop 2epl( #ctivit( @ clicF twice on it as shown below)



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Step &. Edit 2epl( as shown below )1ame) 2epl($alt"tptInteraction T(pe ) Partner %inFPartner %inF ) TopperStdentService =Browse6"peration) process*ariable )"tpt*ariable =create b( clicFing on sign6licF "F



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Step &) +rag @ drop #ssign #ctivit( @ 2ename It as #ssign$alt"tpt@ then licF it twice )

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Step &$) To assign !alt otpt clicF on e'pression +rag it +rop it on !altode as shownbelow

Step &%7rite E'pression i.e !alt code as /F012.../



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Step &&Similarl( severit( as

Step &') Select +ate $nctions @ nder it select current2date2"i(e then insert intoE'pressionthen clicF oF

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Step &+) $or +etail clicF #dvanced !nctions ---- get$alt#s string theninsert into E'pression

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Step &,) $or omposite1ame clicF #dvanced !nctions ---- get!o(posite3a(etheninsert into E'pression

Step &8) $or omponent1ame clicF #dvanced !nctions ---- getomponent1ame theninsert into E'pression

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Step &-$or ompositeInstanceId clicF #dvanced !nctions ---- getompositeInstanceId theninsert into E'pression

Step '."bserve all assigned vales



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Step ') #ssign TopperStdent2eest to 2eestPa(load since bothare o! anon(mos t(pe.



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Step '$) licF on compile icon to compile the bpel process



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+eplo(ment $inished.

1ote) Be!ore +eplo(ment Start 7eblogic #dmin Server as discssed in m( previos docment"racle Soa Part I* +oc.Step '&) licF on Browser icon shown below)

Step '') Start (or enterprise manager b( writing rl http) NNlocalhost)>NemN

1ote ) Here localhost is application server @ > is a port in which enterprise manager isrnning.

Step '+ %ogin sing credentialsser 1ame )weblogicPassword ) welcome

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clicF on login

Step ', 7e have sccess!ll( login inside Enterprise manager g =$armJdevJsoa6we can clearl( observe here that admin server is p @ all deplo(ment stats is also p it meansthat or admin server is rnning .1ow In le!t pane o! window nder $armJdevJsoa clicF on S"# radio btton now again e'pand@ nder de!alt we can easil( see all the deplo(ed pro?ects.licF twice on TopperStdentPro?ect .

Step '8licF on TEST @ create instance

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Step '-) Inpt Stdent arra( sie C0



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Step +.Scroll down page @ Provide reired inpt o! a stdents

Step +licF on Test 7eb Service

#nd get 2esponse shown below)

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Step +$) E'plore topper stdent @ !ind all blanF spaces de to !alt so e'plore $alt+ata

Step +%) 1ow we can see that catch activit( catch the !alt @ replied to the client as$altdata 2esponse .

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Step +&) 1ow %ogot enterprise manager @ stop weblogic admin server .

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Getting Started With Oracle SoA 8