ĐĎॹá>ţ˙ &)ţ˙˙˙ź('˙˙˙˙˙˙˙˙˙˙˙˙˙˙˙˙˙˙˙˙˙˙˙˙˙˙˙˙˙˙˙˙˙˙˙˙˙˙˙˙˙˙˙˙˙˙˙˙˙˙˙˙˙˙˙˙˙˙˙˙˙˙˙˙˙˙˙˙˙˙˙˙˙˙˙˙˙˙˙˙˙˙˙˙˙˙˙˙˙˙˙˙˙˙˙˙˙˙˙˙˙˙˙˙˙˙˙˙˙˙˙˙˙˙˙˙˙˙˙˙˙˙˙˙˙˙˙˙˙˙˙˙˙˙˙˙˙˙˙˙˙˙˙˙˙˙˙˙˙˙˙˙˙˙˙˙˙˙˙˙˙˙˙˙˙˙˙˙˙˙˙˙˙˙˙˙˙˙˙˙˙˙˙˙˙˙˙˙˙˙˙˙˙˙˙˙˙˙˙˙˙˙˙˙˙˙˙˙˙˙˙˙˙˙˙˙˙˙˙˙˙˙˙˙˙˙˙˙˙˙˙˙˙˙˙˙˙˙˙˙˙˙˙˙˙˙˙˙˙˙˙˙˙˙˙˙˙˙˙˙˙˙˙˙˙˙˙˙˙˙˙˙˙˙˙˙˙˙˙˙˙˙˙˙˙˙˙˙˙˙˙˙˙˙˙˙˙˙˙˙˙˙˙˙˙˙˙˙˙˙˙˙˙˙˙˙˙˙˙˙˙˙˙˙˙˙˙˙˙˙˙˙˙˙˙˙˙˙˙˙˙˙˙˙˙˙˙˙˙˙˙˙˙˙˙˙˙˙˙˙˙˙˙˙˙˙˙˙˙˙˙˙˙˙˙˙˙˙˙˙˙˙˙˙˙˙˙˙˙˙˙˙˙˙˙˙˙˙˙˙˙˙˙˙˙˙˙˙˙˙˙˙˙˙˙˙˙˙˙˙˙˙˙˙čŤ(é(€ŕŕ€ ň/Č 0ŇŐ0ˇDArialngsˆšˆš- ¸đˇç0¸z[ 0¸ˇDTahomagsˆšˆš- ¸đˇç0¸z[ 0¸" ˇDTimes New Roman¸đˇç0¸z[ 0¸0ˇDWingdingsRoman¸đˇç0¸z[ 0¸¤‘O˙˙,ç˙Ľ .Š  @Łn˙ý?" d˙d@˙˙ď˙˙˙˙˙˙  @@``€€ đđ€8Ď   () **21// 21         HGƒƒ    ƒƒHGopqr3w9xX    š Q™  ¤ Ť ł´ľś¸šşťź˝žżÂĂĹČÉ,ĘĚ̓ đ0ƒ†AżŔĹA˙€ń ™˙f˙™3˙3˙˙3̙f@ń˙˙˙˙˙˙÷đ8óg€óh€ĐwLĂf ƚ;Nh8ƚ;úgţý42d2d ¸z[ 0&ţ˙˙¸˙˙˙pűppű@ <ý4ddddL¸ß 0ˆšô, ˙ <ý4BdBdL¸ž< 0ˆšŽˆ8Š0ş___PPT10‹ ŔŔ?Ů Ú %đ~óC?Ÿ¨#Monitoring Design Pattern ContractsĄ$$Ÿ¨%Jason O. Hallstrom Clemson UniversityĄ"&˙˙ţŞ óŸ¨Design Patterns and MonitoringĄŸ¨žPatterns capture key system behaviors Behaviors often cross-cutting Usually, specified informally To monitor and test behaviors, informal specs are not enoughĄ8&<=&<=óEAŸ¨ Our ApproachŸ AOP aspect  Language construct, similar to a class, that implements cross-cutting behaviors for classes in an application Aspects can be used to express design pattern contracts These aspects can be used to monitor system behavior to see if these contracts are respectedĄ Z ˙˙ţóGCŸ¨Methodology OverviewŸ¨BThe contract aspect contains the main checking logic for a patternĄ&C0óHDŸ¨Methodology OverviewŸ¨BThe contract aspect contains the main checking logic for a patternĄ&C0óIBŸ¨Methodology OverviewŸ¨GThe subcontract aspect contains definitions specific to the applicationĄ&H˙˙ţ2óŸ¨Methodology OverviewŸŞ óKGŸ¨Methodology OverviewŸŞ óLFŸ¨Methodology OverviewŸŞ óJEŸ¨Methodology OverviewŸŞ óD@Ÿ¨Benefits of Our ApproachŸ¨ĺNo instrumentation of source code Monitoring code separate from application code Contract aspect needs to be created only once for a given design pattern Only need to create new subcontract aspects for each system to be monitoredĄ&šLšLóZRŸ¨Aspect TerminologyŸ >Pointcut  A set of places in the class code where an aspect can insert new behavior Advice  Code associated with a pointcut that implements this new behaviorĄ2 ˙˙ţM˙˙ţEó*&Ÿ¨Monitoring with AspectsŸŞ ó Ÿ¨Pattern Example: ObserverŸŞ óMHŸ¨The Contract AspectŸ¨Formalizes the behavior intended by the pattern Advice provides the main monitoring code for the pattern However, method names/signatures and concrete definitions for relations vary from application to application Use abstract pointcuts and methods for these in the contract aspectĄ(ZÚ8ó[TŸ¨(Part of the Contract Aspect for ObserverŸ ŹProperty: After call to Update(), the Observer should be  consistent with its subjectĄWZWóNIŸ¨(Part of the Contract Aspect for ObserverŸ¨nAnother property: If a call to a Subject method results in a change in state, Notify() should have been calledĄooó3/Ÿ 4In the Subcontract Aspect& Ÿ¨Associate concrete classes with pattern roles Insert dummy interfaces in the class hierarchy (AspectJ feature) Pointcut definitions that associate role methods with actual methods in the application Definitions for relations specific to the given application ĄJ.A–.AW˙˙ţ>Ş^ óPMŸ¨Hospital ExampleŸ¨RPatients play the Subject role State includes temp and heart rate Notifying all observers is done with Pat.PageAll() Nurses observe Patients Keep track if Patents have a fever or not Updates done with Nrs.TempUpd(Pat) Doctors also observe Patients Record whether or not patients are in stable condition Updates done with Doc.CondUpd(Pat)ĄVMZH <˙˙ţ I    ˙˙ţ       Ş>g XióTNŸ¨#Pointcuts in the Subcontract AspectŸ¨tIn the subcontract aspect, we give definitions for the abstract pointcuts mentioned in the contract aspect Examples:óRLŸ¨Defining RelationsŸ¨iNeed to provide definitions of application-specific relations in the subcontract aspect Example: Modifiedó\UŸ¨Defining RelationsŸ¨Another example: Consistentó:6Ÿ¨ DiscussionŸ¨"Contract aspects generally harder to write than the subcontract aspects Only have to write them once! Information such as method call sequences can be tracked using auxiliary variables in the aspect Pointcuts can encompass more than just method calls Current and future work MonGen and PCLĄŒH­H­˙˙ţ˙˙ţŞ óWPŸ¨Presented MethodologyŸŞ óXQŸ¨MonGen MethodologyŞ ŸŞ óB>Ÿ¨ ConclusionŸ¨ßDesign patterns often describe behaviors that encompass multiple classes Aspects are a natural way to monitor such behaviors Separating the essence of the pattern from the details of the application saves time and effort Ą*ßß˙˙ţó Ÿ¨ Questions?Ÿ¨Ve-mail tyler@cse.ohio-state.edu MonGen Web page: www.cse.ohio-state.edu/~tyler/MonGenĄ`%˙˙ţ%˙˙fţŞ> $ňóU 0ßęřď `đ r˙˙˙˝77˙Ě˙fĚ3÷Ě/ÇĆą`đ f˙˙˙™ęęęfĚ˙f˙˙˙̙Ě`đ K–˙˙˙fĚÍ×ߙ™˙xPşĚ˙–ł`đ 7_/˙˙˙U†<ŃďłĚfŽŹf´ďřöŹ`đ Hgh˙˙˙X€sÝÝÝ3Ě̈q̙¨¨¨`đ WXc˙˙˙klu˙˙Ěgti~^éçÓ¤O`đ ÄÖžďűđ3™fÝÝÝĚ˙™™3f`đ ÖÚä˙˙˙™żŢăŔŔŔ33Ě^“É`đ ÂŔşJ%ôôěx…iáßÁĽ§Żœ˜ff3`đ f˙˙˙™˙˙ĚfĚ˙f˙˙˙̙̣>˙ý?" dd@˙˙ď˙˙˙˙˙˙,٤˙ý?nFdŘ@˙˙ď˙˙˙˙˙˙ ú dÔ únFĐ@ú dđ`únF€ Łn˙ý?" d˙d@˙˙ď˙˙˙˙˙˙   @@``€€PŁP   @ ` €`Ł pŁ>€Ł> rđjđđźđđ( đ đźđ6 đT đ~ŕ đź đˆ"ńżđ~ŕđ đź c đÄB@CW DEÁFÁ"€ƒ‹Ś˙ŒdŽ—Áœ@ż˙ ˆđ˙W @W @W W @ŹŹŹŹŹŹ`€"ńżđ.‰~ŕđ đź c đÄB,CW DEÁFÁ"€ƒ‹ŒdŽ—Áœ@ż˙ ˆđ˙W ,W ,@ŹŹŹŹŹŹ`€"ńżđ‰.ŕđž đ\ đ~ŕ đź đˆ"ńżđ~ŕđ đź c đÄB CˇDEÁFÁ"€ƒ‹ŒŽ—Áœ@ż˙ˆđ˙ ˇ ˇ @ŹŹŹŹŹŹ`€"ńżđ(4ťđ đź c đÄB C‰ DEÁFÁ"€ƒ‹ŒdŽ—Áœ@ż˙ˆđ˙‰ ‰ ‰ ‰ @ŹŹŹŹŹŹ`€"ńżđ(W4ŕđ đź c đÄBtC DEÁFÁ"€ƒ‹Ś˙ŒdŽ—Áœ@ż˙ˆđ˙t t tt@ŹŹŹŹŹŹ`€"ńżđűƒ~đ đ ź c đÄB CüDEÁFÁ"€ƒ‹ŒŽ—Áœ@ż˙ˆđ˙ü ü üü@ŹŹŹŹŹŹ`€"ńżđ([4Wđ đ ź c đÄB CüDEÁFÁ"€ƒ‹ŒdŽ—Áœ@ż˙ˆđ˙ ü ü @ŹŹŹŹŹŹ`€"ńżđ(ť4ˇđ đ ź c đÄB C¤DEÁFÁ"€ƒ‹Œ2Ž—Áœ@ż˙ˆđ˙¤ ¤ @ŹŹŹŹŹŹ`€"ńżđ(ˇ4[đ đ ź c đÄBűC DEÁFÁ"€ƒ‹Ś˙ŒdŽ—Áœ@ż˙ˆđ˙ ű ű@ŹŹŹŹŹŹ`€"ńżđƒ_đ đ ź c đÄBűC DEÁFÁ"€ƒ‹Ś˙ŒŽ—Áœ@ż˙ˆđ˙ű ű űű@ŹŹŹŹŹŹ`€"ńżđ˙ƒűđ đź c đÄB˘C DEÁFÁ"€ƒ‹Ś˙ŒÎ˙˙˙Ž—Áœ@ż˙ˆđ˙ ˘ ˘@ŹŹŹŹŹŹ`€"ńżđ\ƒ˙đě đź ł đB€hŽ ‡żƒżŔ˙ ?"ńżđŔ 0FđĂ   đTŸ¨ Click to edit Master title style˘!Ş !đ$ đź ƒ đ0€° ƒżŔ˙ "ńżđŕ 0đĂ   đžŸ¨RClick to edit Master text styles Second level Third level Fourth level Fifth level˘!    Ş SđČ đź ƒ đ0€\— ƒżŔ˙ "ńżđ` P€đĂ   đBŸ *Ą řđĘ đź ƒ đ0€ œ ƒżŔ˙ "ńżđ`p€đĂ    đDŸ *Ą úđĘ đź ƒ đ0€č  ƒżŔ˙ "ńżđ`€0€đĂ   đDŸ *Ą ŘđH đź ƒ đ0ƒ“ŽŸ‹”Ţ˝hż˙ ?đ f˙˙˙™˙˙ĚfĚ˙f˙˙˙̙Ěˆ8Š0ş___PPT10‹ë.† Ŕ@F$ şShimmerî9ď g€ ŠđĄđŔđ9đ( đ đŔđŽ đT đ~ŕ đŔ đˆ"ńżđ~ŕđ~đb đ‰~ŕ đŔ# đ ˆ"ńżđ‰~ŕđ đŔ c đÄB@CW DEÁFÁ"€ƒ‹Ś˙ŒdŽ—Áœ@ż˙ ˆđ˙W @W @W W @ŹŹŹŹŹŹ`€"ńżđ.‰~ŕđ đŔ c đÄB,CW DEÁFÁ"€ƒ‹ŒdŽ—Áœ@ż˙ ˆđ˙W ,W ,@ŹŹŹŹŹŹ`€"ńżđ‰.ŕđ đŔ c đÄB C¤DEÁFÁ"€ƒ‹Œ2Ž—Áœ@ż˙ˆđ˙¤ ¤ @ŹŹŹŹŹŹ`€"ńżđ(ˇ4[đ đŔ c đÄBűC DEÁFÁ"€ƒ‹Ś˙ŒŽ—Áœ@ż˙ˆđ˙ű ű űű@ŹŹŹŹŹŹ`€"ńżđ˙ƒűđ đŔ c đÄBűC DEÁFÁ"€ƒ‹Ś˙ŒdŽ—Áœ@ż˙ˆđ˙ ű ű@ŹŹŹŹŹŹ`€"ńżđƒ_đŚđb đ\~ŕ đ Ŕ# đ ˆ"ńżđ\~ŕđ đ Ŕ c đÄB CˇDEÁFÁ"€ƒ‹ŒŽ—Áœ@ż˙ˆđ˙ ˇ ˇ @ŹŹŹŹŹŹ`€"ńżđ(4ťđ đ Ŕ c đÄB C‰ DEÁFÁ"€ƒ‹ŒdŽ—Áœ@ż˙ˆđ˙‰ ‰ ‰ ‰ @ŹŹŹŹŹŹ`€"ńżđ(W4ŕđ đ Ŕ c đÄBtC DEÁFÁ"€ƒ‹Ś˙ŒdŽ—Áœ@ż˙ˆđ˙t t tt@ŹŹŹŹŹŹ`€"ńżđűƒ~đ đ Ŕ c đÄB CüDEÁFÁ"€ƒ‹ŒŽ—Áœ@ż˙ˆđ˙ü ü üü@ŹŹŹŹŹŹ`€"ńżđ([4Wđ đŔ c đÄB CüDEÁFÁ"€ƒ‹ŒdŽ—Áœ@ż˙ˆđ˙ ü ü @ŹŹŹŹŹŹ`€"ńżđ(ť4ˇđ đŔ c đÄB˘C DEÁFÁ"€ƒ‹Ś˙ŒÎ˙˙˙Ž—Áœ@ż˙ˆđ˙ ˘ ˘@ŹŹŹŹŹŹ`€"ńżđ\ƒ˙đň đŔ Ă đH€Dx‡żƒżŔ˙ ?ż"ńżđę pđĂ  đTŸ¨ Click to edit Master title style˘!Ş !đÝ đŔ ƒ đ0€ŕzƒżŔ˙ "ńżđ  `ŕ đĂ  đWŸ¨#Click to edit Master subtitle style˘$Ş $đČ đŔ ƒ đ0€ŒƒżŔ˙ "ńżđ` P€đĂ  đBŸ *Ą řđĘ đŔ ƒ đ0€ÔƒƒżŔ˙ "ńżđ`@`€đĂ   đDŸ *Ą úđĘ đŔ ƒ đ0€źˆƒżŔ˙ "ńżđ`€0€đĂ  đDŸ *Ą ŘđH đŔ ƒ đ0ƒ“ŽŸ‹”Ţ˝hż˙ ?đ f˙˙˙™˙˙ĚfĚ˙f˙˙˙̙Ěˆ8Š0ş___PPT10‹ë.† Ŕ@F$îtďh€ůK0 sđk@ đÔđđ( đ đÔđ~ đÔ s đ*€Ä’ż˙Ŕˆđ° 6đĂ  đ žđ~ đÔ s đ*€˜“ż˙Ŕˆđ @  Ŕ đĂ  đ žđň đÔ ƒ đ0€ŕ”ƒżŔ˙ đ0P° đ’Ÿ \SAVCBS  04 Workshop at ACM SIGSOFT 2004/FSE-12Ą//˛˛˛ţđÝ đÔ ƒ đ0€(˜ƒżŔ˙ đ@ @ đ}Ÿ¨1Benjamin Tyler (Presenter) Ohio State UniversityĄ02 ˙Ěţ˙˙ţđŕ đÔ ƒ đ0€<ƒżŔ˙ đ   p  đ€Ÿ¨(Neelam Soundarajan Ohio State UniversityĄ")˙˙ţŞ#đH đÔ ƒ đ0ƒ“ŽŸ‹”Ţ˝hż˙ ?đ ˙˙˙€€€ťŕă33™™™™Ěˆ‘Љş___PPT10‹ië.˛´Ä ă/ů+Dń='ń š˙˙˙˙=ń @Bń +î}ď g€ ”đŒđÄđ$đ( đ đÄđr đÄ S đ€ŕŕż˙źđŔ 0FđĂ   đ žđr đÄ S đ€řÝż˙źđŕ đđđĂ  đ žđH đÄ ƒ đ0ƒ“ŽŸ‹”Ţ˝hż˙ ?đ f˙˙˙™ęęęfĚ˙f˙˙˙̙Ěˆ‘Љş___PPT10‹ië.ł´Ä aÔl+Dń='ń š˙˙˙˙=ń @Bń +î‰ď g€  đ˜` đÜđ0đ( đ đÜđx đÜ c đ$€řöż˙źˆđŔ 0FđĂ   đ žđx đÜ c đ$€Ě÷ż˙źˆđࠐPđĂ  đ žđH đÜ ƒ đ0ƒ“ŽŸ‹”Ţ˝hż˙ ?đ f˙˙˙™ęęęfĚ˙f˙˙˙̙Ěˆ‘Љş___PPT10‹ië.´´Äš”+Dń='ń š˙˙˙˙=ń @Bń +îńď g€ đ đčđ˜đ( đ đčđX đ č ƒ đ0…‡fżŔËԔ˙đ@ńńŕđx đč c đ$€  +ż˙źˆđŔ 0FđĂ  + đ žđč˘ đč ƒ đ0€čűżżŔËԔ˙C"ńż˙?đSÁ! ŕ đhŸ¨ Contract Aspect for P (abstract)Ą,!  đ đč Ł đ<€` +ƒżŔ˙ źˆđ€  đ€đĂ + đ žđH đč ƒ đ0ƒ“ŽŸ‹”Ţ˝hż˙ ?đ f˙˙˙™ęęęfĚ˙f˙˙˙̙Ěˆ‘Љş___PPT10‹ië.´´Äš”+Dń='ń š˙˙˙˙=ń @Bń +îď g€ đ  đ ěđŽđ( đ đěđX đ ě ƒ đ0…‡fżŔËԔ˙đ@ńńŕđx đě c đ$€Ŕ+ż˙źˆđŔ 0FđĂ  + đ žđX đě€ ƒ đ0…‡33™żŔËԔ˙đĐ Đ;đX đě€ ƒ đ0…‡33™żŔËԔ˙đp  pŰđX đě€ ƒ đ0…‡33™żŔËԔ˙đ@ {đî˘ đě ƒ đ0€+żżŔËԔ˙C"ńż˙?đ1 @w đnŸ¨&System Code Purportedly uses pattern PĄ,'  ˙˙ţđč˘ đě ƒ đ0€+żżŔËԔ˙C"ńż˙?đSÁ! ŕ đhŸ¨ Contract Aspect for P (abstract)Ą,!  đ đě Ł đ<€Ř+ƒżŔ˙ źˆđ€  đ€đĂ + đ žđH đě ƒ đ0ƒ“ŽŸ‹”Ţ˝hż˙ ?đ f˙˙˙™ęęęfĚ˙f˙˙˙̙Ěˆ‘Љş___PPT10‹ië.´´Äš”+Dń='ń š˙˙˙˙=ń @Bń +îď g€ 0đ(€ đ äđŔđ( đ đäđX đ ä ƒ đ0…‡fżŔËԔ˙đ@ńńŕđX đ ä ƒ đ0…‡33™żŔËԔ˙đ` ńń đx đä c đ$€ü&+ż˙źˆđŔ 0FđĂ  + đ žđX đä€ ƒ đ0…‡33™żŔËԔ˙đĐ Đ;đX đä€ ƒ đ0…‡33™żŔËԔ˙đp  pŰđX đä€ ƒ đ0…‡33™żŔËԔ˙đ@ {đî˘ đä ƒ đ0€D)+żżŔËԔ˙C"ńż˙?đ1 @w đnŸ¨&System Code Purportedly uses pattern PĄ,'  ˙˙ţđč˘ đä ƒ đ0€ +żżŔËԔ˙C"ńż˙?đSÁ! ŕ đhŸ¨ Contract Aspect for P (abstract)Ą,!  đę˘ đä ƒ đ0€2+żżŔËԔ˙C"ńż˙?đ` !ńí  đjŸ¨&Subcontract Aspect Specific to SystemĄ(' đRB đ ä s đ*DżŔËԔ˙đ ŮŮ` đ^R đ ä “ đ6…‡ƒżŔËԔ˙đŕaQ đ đä Ł đ<€P7+ƒżŔ˙ źˆđ€  đ€đĂ + đ žđH đä ƒ đ0ƒ“ŽŸ‹”Ţ˝hż˙ ?đ f˙˙˙™ęęęfĚ˙f˙˙˙̙Ěˆ‘Љş___PPT10‹ië.´´Äš”+Dń='ń š˙˙˙˙=ń @Bń +îę ď g€  đů đ2Čpńđm đ( đ đČđX đ&Č ƒ đ0…‡fżŔËԔ˙đ@ńńŕđX đ%Č ƒ đ0…‡33™żŔËԔ˙đ` ńń đr đČ S đ€ô=+ż˙źđŔ 0FđĂ  + đ žđ^ đ*Č€ “ đ6…‡33™żŔËԔ˙ˆđĐ Đ;đ^ đ)Č€ “ đ6…‡33™żŔËԔ˙ˆđp  pŰđ^ đČ€ “ đ6…‡33™żŔËԔ˙ˆđ@ {đô˘ đČ “ đ6€<@+żżŔËԔ˙ˆC"ńż˙?đ1 @w đnŸ¨&System Code Purportedly uses pattern PĄ,'  ˙˙ţđî˘ đČ “ đ6€4E+żżŔËԔ˙ˆC"ńż˙?đSÁ! ŕ đhŸ¨ Contract Aspect for P (abstract)Ą,!  đď˘ đ"Č “ đ6€ŒJ+żżŔËԔ˙ˆC"ńż˙?đ` !ńí  điŸ¨%Subcontract Aspect Specific to SystemĄ(& đRB đ'Č s đ*DżŔËԔ˙đ ŮŮ` đ^R đ$Č “ đ6…‡ƒżŔËԔ˙đŕaQ đxŇ đ,Č ƒ đ0…‡GtF˙™żŔ˙C"ńż˙?đŔ 0 ŕ  đ„Ň đ-Č€ Ł đ<Ś˙…‡GEBHš˙™żŔ˙C"ńż˙?đpĄ ń0 đX đ.Č ƒ đ0…‡33™żŔËԔ˙đ` @ Đđ⢠đ0Č ƒ đ0€xP+żżŔËԔ˙C"ńż˙?đC Đ ŕĐ đbŸ¨Compiled System Monitors PĄ,  ˙˙ţđʢ đ2Č ƒ đ0€xU+żżŔËԔ˙C"ńż˙?đ` ŕ đ@  đJŸ¨Compile/ WeaveĄ  ˙™ţđH đČ ƒ đ0ƒ“ŽŸ‹”Ţ˝hż˙ ?đ f˙˙˙™ęęęfĚ˙f˙˙˙̙Ěˆ‘Љş___PPT10‹ië.´´Äš”+Dń='ń š˙˙˙˙=ń @Bń +îď g€ ,đ$Đ đ řđźđ( đ đřđX đř ƒ đ0…‡fżŔËԔ˙đ@ńńŕđx đř c đ$€x]+ż˙źˆđŔ 0FđĂ  + đ žđX đř€ ƒ đ0…‡™żŔËԔ˙đp  pŰđX đř€ ƒ đ0…‡™żŔËԔ˙đ@ {đ㢠đř ƒ đ0€x_+żżŔËԔ˙C"ńż˙?đ1 ŕ đcŸ¨Another System Also uses PĄ,  ˙˙ţđč˘ đř ƒ đ0€pd+żżŔËԔ˙C"ńż˙?đSÁ! ŕ đhŸ¨ Contract Aspect for P (abstract)Ą,!  đRB đ ř s đ*DżŔËԔ˙đ ŮŮ` đ^R đ ř “ đ6…‡ƒżŔËԔ˙đŕaQ đX đ ř ƒ đ0…‡33™żŔËԔ˙đ` ńń đé˘ đ ř ƒ đ0€j+żżŔËԔ˙C"ńż˙?đ` !ńí  điŸ¨%Subcontract Aspect Specific to SystemĄ(& đH đř ƒ đ0ƒ“ŽŸ‹”Ţ˝hż˙ ?đ f˙˙˙™ęęęfĚ˙f˙˙˙̙Ěˆ‘Љş___PPT10‹ië.´´Äš”+Dń='ń š˙˙˙˙=ń @Bń +î;ď g€ RđJŔ đ ôđâđ( đ đôđX đô ƒ đ0…‡™żŔËԔ˙đ` ńń đX đô ƒ đ0…‡fżŔËԔ˙đ@ńńŕđx đô c đ$€ŹĹ+ż˙źˆđŔ 0FđĂ  + đ žđX đô€ ƒ đ0…‡™żŔËԔ˙đp  pŰđX đô€ ƒ đ0…‡™żŔËԔ˙đ@ {đ㢠đô ƒ đ0€˜Ç+żżŔËԔ˙C"ńż˙?đ1 ŕ đcŸ¨Another System Also uses PĄ,  ˙˙ţđč˘ đô ƒ đ0€Ě+żżŔËԔ˙C"ńż˙?đSÁ! ŕ đhŸ¨ Contract Aspect for P (abstract)Ą,!  đ˘ đ ô ƒ đ0€ˆÉ+żżŔËԔ˙C"ńż˙?đ` !ńí  đŸ¨)Another Subct. Aspect Specific to SystemĄ(* ŞđRB đ ô s đ*DżŔËԔ˙đ ŮŮ` đ^R đ ô “ đ6…‡ƒżŔËԔ˙đŕaQ đH đô ƒ đ0ƒ“ŽŸ‹”Ţ˝hż˙ ?đ f˙˙˙™ęęęfĚ˙f˙˙˙̙Ěˆ‘Љş___PPT10‹ië.´´Äš”+Dń='ń š˙˙˙˙=ń @Bń +îi ď g€ € đx ° đđđ đ( đ đđđX đ đ ƒ đ0…‡™żŔËԔ˙đ` ńń đX đ đ ƒ đ0…‡fżŔËԔ˙đ@ńńŕđx đđ c đ$€Ŕm+ż˙źˆđŔ 0FđĂ  + đ žđX đđ€ ƒ đ0…‡™żŔËԔ˙đp  pŰđX đđ€ ƒ đ0…‡™żŔËԔ˙đ@ {đ㢠đđ ƒ đ0€ żżŔËԔ˙C"ńż˙?đ1 ŕ đcŸ¨Another System Also uses PĄ,  ˙˙ţđč˘ đđ ƒ đ0€8á+żżŔËԔ˙C"ńż˙?đSÁ! ŕ đhŸ¨ Contract Aspect for P (abstract)Ą,!  đ˘ đđ ƒ đ0€äă+żżŔËԔ˙C"ńż˙?đ` !ńí  đŸ¨)Another Subct. Aspect Specific to SystemĄ(* ŞđRB đ đ s đ*DżŔËԔ˙đ ŮŮ` đ^R đ đ “ đ6…‡ƒżŔËԔ˙đŕaQ đxŇ đ đ ƒ đ0…‡GtF˙™żŔ˙C"ńż˙?đŔ 0 ŕ  đ„Ň đđ€ Ł đ<Ś˙…‡GFHZ˙™żŔ˙C"ńż˙?đĄ ń0 đX đđ ƒ đ0…‡™żŔËԔ˙đ` @ Đđč˘ đđ ƒ đ0€¨ę+żżŔËԔ˙C"ńż˙?đC Đ ŕĐ đhŸ¨ Compiled System Also monitors PĄ,! ˙˙ţđʢ đđ ƒ đ0€Œď+żżŔËԔ˙C"ńż˙?đ` ŕ đ@  đJŸ¨Compile/ WeaveĄ  ˙™ţđH đđ ƒ đ0ƒ“ŽŸ‹”Ţ˝hż˙ ?đ f˙˙˙™ęęęfĚ˙f˙˙˙̙Ěˆ‘Љş___PPT10‹ië.´´Äš”+Dń='ń š˙˙˙˙=ń @Bń +î‰ď g€  đ˜P đŘđ0đ( đ đŘđx đŘ c đ$€Řő+ż˙źˆđŔ 0FđĂ  + đ žđx đŘ c đ$€Źö+ż˙źˆđŕ €ŕđĂ + đ žđH đŘ ƒ đ0ƒ“ŽŸ‹”Ţ˝hż˙ ?đ f˙˙˙™ęęęfĚ˙f˙˙˙̙Ěˆ‘Љş___PPT10‹ië.´´Äš”+Dń='ń š˙˙˙˙=ń @Bń +î‰ď g€  đ˜  đ,đ0đ( đ đ,đx đ, c đ$€Ťż˙źˆđŔ 0FđĂ  Ť đ žđx đ, c đ$€ŘŤż˙źˆđŕ ŕđĂ Ť đ žđH đ, ƒ đ0ƒ“ŽŸ‹”Ţ˝hż˙ ?đ f˙˙˙™˙˙ĚfĚ˙f˙˙˙̙Ěˆ‘Љş___PPT10‹ië.ŔľÄĐ4Ă+Dń='ń š˙˙˙˙=ń @Bń +îÄ ď g€ Ű đÓ  đ hđk đ( đ đhđx đh c đ$€T Ťż˙źˆđŔ 0FđĂ  Ť đ žđ˘ đh ƒ đ0€ü+żƒżŔ˙"ńż`đ$ 0 L  đ•Ÿ¨1before(Calc c): SqPc(c) { }Ą2 2˙˙ţŞ$ đN˘ đh ƒ đ0€ŤżƒżŔ˙"ńż`đ„ Ź đŕŸ¨Dafter(Calc c): SqPc(c) { } ĄTE B˙˙ţ&˙˙ţç˙&˙˙ţç˙&˙˙ţç˙Ş$ 0𮢠đ h ƒ đ0€ÔŤżƒżŔ˙"ńż`đ<Đ ä đ@Ÿ¨Zaspect CalcMonitor { int st_old; pointcut SqPc(Calc c): exec(Sqrt()) && targ(c);ĄN[ #˙˙ţ˙˙ţ6˙˙ţ˙˙ţŞt   đB˘ đ h ƒ đ0€ôŤżƒżŔ˙"ńż`đ 0 L  đԟ¨& assert(c.st >= 0); st_old = c.st; ĄL' ˙˙ţ#˙™ţ˙˙ţ˙™ţŞ>  đ ˘ đ h ƒ đ0€l$ŤżƒżŔ˙"ńż`đ~   Ź đŸ¨1assert(c.st^2 <= st_old && st_old <(c.st+1)^2);Ą2 2˙™ţŞ,𚢠đh ƒ đ0€ )ŤżƒżŔ˙"ńż`đL  ° € đKŸ¨}Ą. ˙˙ţ˙˙ţđ˛đF đp°p  đh đˆđŒ@@ ěđî˘ đh Ă đH€l.Ť˜˛ƒ…żƒżŔËԔ˙S"ńż`ż˙?đ °p  đHŸ¨pclass Calc { int st; void Sqrt() { int i = 1; while(i*i<=st) i++; st = i-1; } } Ą.q Uކ  đf đh‚ “ đ6…‡ƒżŔËԔ˙đp°p € đ^B đhŔ “ đ6DżŔ˙˙ËԔŃŐ˙đ| Đ đ^B đhŔ “ đ6DżŔ˙˙ËԔŃŐ˙đ| ŕ Ź đH đh ƒ đ0ƒ“ŽŸ‹”Ţ˝hż˙ ?đ f˙˙˙™˙˙ĚfĚ˙f˙˙˙̙Ěˆ‘Љş___PPT10‹ië.ˇÄŔ¨çU+Dń='ń š˙˙˙˙=ń @Bń +îMď g€ dđ\pđ#8Üđôđ( đ đÜđr đÜ S đ€€;Ťż˙źđŔ 0FđĂ  Ť đ žđM˘ đÜ ł đB€Č<Ť…‡żƒżŔËԔ˙đp "  đ۟¨E Subject +Attach(in Observer) +Notify() +Detach(in Observer)ĄFF  4Ş,   đRB đ Ü s đ*DżŔËԔ˙đs đRB đÜ s đ*DżŔËԔ˙đĄs ĄđҢ đÜ “ đ6€řDŤżƒżŔËԔ˙đ p  đlŸ¨ ConcreteSubject Ą ŞđRB đÜ s đ*DżŔËԔ˙đ s đRB đÜ s đ*DżŔËԔ˙đp đ㢠đÜ Ł đ<€źIŤ…‡żƒżŔ˙đ  ćŔ đwŸ¨- subjectState Ą* ,Ş đRB đÜ@ s đ*DżŔËԔ˙đ0 @ đ đRB đÜ s đ*DżŔËԔ˙đ0  đ đRB đÜ s đ*DżŔËԔ˙đđ @đ đRB đÜ s đ*DżŔËԔ˙đđ    đ˘ đÜ “ đ6€ÜOŤżƒżŔËԔ˙đ"  đ›Ÿ¨ Observer + Update() Ą`    đRB đ Ü s đ*DżŔËԔ˙đ“đRB đ!Ü s đ*DżŔËԔ˙𥓥đݢ đ"Ü “ đ6€°WŤżƒżŔËԔ˙đ  đwŸ¨! ConcreteObserver + Update() Ą" "ŞđRB đ#Ü s đ*DżŔËԔ˙đ “ đRB đ$Ü s đ*DżŔËԔ˙đđä˘ đ%Ü Ł đ<€Ź\Ť…‡żƒżŔ˙đ 0ßŔ đxŸ¨- observerState Ą* ,Ş đRB đ&Ü@ s đ*DżŔËԔ˙đ0 Đ0đ đRB đ'Ü s đ*DżŔËԔ˙đ0 0đ đRB đ(Ü s đ*DżŔËԔ˙đđ Аđ đRB đ)Ü s đ*DżŔËԔ˙đđ 00 đXB đ*Ü ƒ đ0DżŔËԔŃ˙đ` `đXB đ+Ü@ ƒ đ0DżŔËԔŃ˙đ° ° đ°˘ đ,Ü ƒ đ0€dŤżƒżŔ˙đp  đPŸ¨ observers Ą*  ,𮢠đ-Ü ƒ đ0€PiŤżƒżŔ˙𰠐 P đNŸ¨subject Ą* ,đϢ đ.Ü ƒ đ0€ŕmŤżƒżŔ˙đ` Ŕ  đoŸ¨1 * Ą6  2,đ΢ đ/Ü ƒ đ0€HsŤżƒżŔ˙đŔ ` `  đnŸ¨1 * Ą6  2,đXB đ4Ü ƒ đ0DżŔ˙˙ËŸoÎ˙đŕĐ ŕđŽ2 đ5Ü Ă đH€hyŤ…‡ƒżŔ˙˙ËŸoÎ˙đ°  đ6ŸĄ" ,˙˙ţç˙đXB đ6Ü ƒ đ0DżŔ˙˙ËŸoÎ˙đŕĐ Đ ` đ^ đ7Ü€ “ đ6…‡ƒżŔ˙˙ËŸo˙đ` Đ`  đ÷˘ đ8Ü ƒ đ0€¸}ŤżƒżŔ˙đ J  đ—Ÿ¨)for all o in observers o.Update()Ą0* )˙˙ţ,ç˙ŞđH đÜ ƒ đ0ƒ“ŽŸ‹”Ţ˝hż˙ ?đ f˙˙˙™˙˙ĚfĚ˙f˙˙˙̙Ěˆ‘Љş___PPT10‹ië.ÂľÄŕ~e˘+Dń='ń š˙˙˙˙=ń @Bń +îÝď g€ ôđěŕ đüđ„đ( đ đüđr đü S đ€†Ťż˙źđŔ 0FđĂ  Ť đ žđŇ đü s đ*€4ŒŤżŔ˙˙Ä˙ ź“"ń6Ů˙˙˙˙Ú˙˙˙˙Ű ÜÁá˙˙˙˙ż˙?đࠐđđĂ Ť đ"žŚř€p`PpđH đü ƒ đ0ƒ“ŽŸ‹”Ţ˝hż˙ ?đ f˙˙˙™˙˙ĚfĚ˙f˙˙˙̙Ěˆ‘Љş___PPT10‹ië.иÄđąč4+Dń='ń š˙˙˙˙=ń @Bń +îď g€ 3đ+Ŕ đ4đĂđ( đ đ4đx đ4 c đ$€Ŕ”Ťż˙źˆđŔ 0FđĂ  Ť đ žđŽ đ4 c đ$€ ›Ťż˙źˆđŕ `pđĂ Ť đ"žŚř€p`Ppđu˘ đ4 ƒ đ0€ŕŤżƒżŔ˙"ńż`đá°°p đŸ¨Ąafter(Subj s, Obs o): UpdatePc(s, o) { assert(Consistent(s, o)); } abstract pointcut UpdatePc(Subj s, Obs o) ; abstract boolean Consistent(Subj s, Obs o) ;Ą ˘ ˙˙ţ ˙˙ţ˙˙ţ  ˙˙ţŞ˘    đH đ4 ƒ đ0ƒ“ŽŸ‹”Ţ˝hż˙ ?đ f˙˙˙™˙˙ĚfĚ˙f˙˙˙̙Ěˆ‘Љş___PPT10‹ië.иÄđąč4+Dń='ń š˙˙˙˙=ń @Bń +î÷ď g€ đđ đđžđ( đ đđx đ c đ$€tąŤż˙źˆđŔ 0FđĂ  Ť đ žđŽ đ c đ$€ÜšŤż˙źˆđŕ `pđĂ Ť đ"žŚř€p`PpđP˘ đ ƒ đ0€đ&żƒżŔ˙"ńż`đ °°– đ⟠öafter(Subj s): SubjMethPc(s) { assert(! Modified(s_old, s)); } before(Subj s): NotifyPc(s) { s_old = copyObject(s); & } abstract pointcut SubjMethPc(Subj s) ; abstract pointcut NotifyPc(Subj s) ; abstract boolean Modified(Subj s1, Subj s2) ;Ąđü  ˙˙ţ˙˙ţ ˙˙ţ%  ˙˙ţ˙˙ţ˙˙ţŞŘ       đH đ ƒ đ0ƒ“ŽŸ‹”Ţ˝hż˙ ?đ f˙˙˙™˙˙ĚfĚ˙f˙˙˙̙Ěˆ‘Љş___PPT10‹ië.иÄđąč4+Dń='ń š˙˙˙˙=ń @Bń +î}ď g€ ”đŒ@ đ”đ$đ( đ đ”đr đ” S đ€đĐŤż˙źđŔ 0FđĂ  Ť đ žđr đ” S đ€LÖŤż˙źđŕ 0PđĂ Ť đ žđH đ” ƒ đ0ƒ“ŽŸ‹”Ţ˝hż˙ ?đ f˙˙˙™˙˙ĚfĚ˙f˙˙˙̙Ěˆ‘Љş___PPT10‹ië.TˇÄđDť+Dń='ń š˙˙˙˙=ń @Bń +î‰ď g€  đ˜0 đđ0đ( đ đđx đ c đ$€ÜŤż˙źˆđŔ 0FđĂ  Ť đ žđx đ c đ$€čÜŤż˙źˆđŕ €ŕđĂ Ť đ žđH đ ƒ đ0ƒ“ŽŸ‹”Ţ˝hż˙ ?đ f˙˙˙™˙˙ĚfĚ˙f˙˙˙̙Ěˆ‘Љş___PPT10‹ië.yśÄ@Ł:#+Dń='ń š˙˙˙˙=ń @Bń +î€ď g€ —đP đđ'đ( đ đđx đ c đ$€ đŤż˙źˆđŔ 0FđĂ  Ť đ žđx đ c đ$€ŕđŤż˙źˆđŕ €ŕđĂ Ť đ žđď˘ đ ƒ đ0€dÂżƒżŔ˙đP `G đŸ¨Ópointcut UpdatePc(Subj subj, Obs obs) : ( exec(Nrs.TempUpd(Pat)) || exec(Doc.CondUpd(Pat)) ) && targ(obs) && arg(subj) ; pointcut SubjMethPc(Subj subj) : exec(Pat.*(..)) && targ(subj) ; Ą¸Ô ˙˙ţ˙˙ţ˙˙ţ ˙˙ţ ˙˙ţ  Şŕ     đH đ ƒ đ0ƒ“ŽŸ‹”Ţ˝hż˙ ?đ f˙˙˙™˙˙ĚfĚ˙f˙˙˙̙Ěˆ‘Љş___PPT10‹ië.yśÄ@Ł:#+Dń='ń š˙˙˙˙=ń @Bń +î¨ď g€ żđˇ đ đOđ( đ đ đx đ  c đ$€œÂż˙źˆđŔ 0FđĂ   đ žđx đ  c đ$€pÂż˙źˆđ€ 0` đĂ Â đ žđ˘ đ  ƒ đ0€lÂżƒżŔ˙đŽ ŕ€Đ đˇŸ¨eboolean Modified(Subj s1, Subj s2) { return s1.temp != s2.temp || s1.hrtRate != s2.hrtRate; }Ąřf     Ş6 HđH đ  ƒ đ0ƒ“ŽŸ‹”Ţ˝hż˙ ?đ f˙˙˙™˙˙ĚfĚ˙f˙˙˙̙Ěˆ‘Љş___PPT10‹ië.tˇÄĐĹş +Dń='ń š˙˙˙˙=ń @Bń +î=ď g€ TđLĐ đ8đäđ( đ đ8đx đ8 c đ$€´/Âż˙źˆđŔ 0FđĂ   đ žđx đ8 c đ$€ˆ0Âż˙źˆđ€ 0ŔđĂ Â đ žđŹ˘ đ8 ƒ đ0€@4ÂżƒżŔ˙đRđP đLŸ¨^boolean Consistent(Subj subj, Obs obs) { if (obs instanceOf Nrs) { return subj.temp > 104 == obs.isFeverish(subj); } else if (obs instanceOf Doc) { return (55 < subj.hrtRate < 100 && 92 < subj.temp < 105) == obs.isStable(subj); } else { /* Error! */} }Ąź_ ˙˙ţ˙˙ţ ˙˙ţ ˙˙ţ+˙˙ţ ˙˙ţ ˙˙ţ$,˙˙ţ !Ş   &   '!đH đ8 ƒ đ0ƒ“ŽŸ‹”Ţ˝hż˙ ?đ f˙˙˙™˙˙ĚfĚ˙f˙˙˙̙Ěˆ‘Љş___PPT10‹ië.tˇÄĐĹş +Dń='ń š˙˙˙˙=ń @Bń +î0ď g€  đ˜° đ°đ0đ( đ đ°đx đ° c đ$€´YÂż˙źˆđŔ 0FđĂ   đ žđx đ° c đ$€ˆZÂż˙źˆđŕ ŔPđĂ Â đ žđH đ° ƒ đ0ƒ“ŽŸ‹”Ţ˝hż˙ ?đ f˙˙˙™˙˙ĚfĚ˙f˙˙˙̙Ěˆ8Š0ş___PPT10‹ë.kˇÄ€?.îÖ ď g€ í đĺ € đ$đ} đ( đ đ$đX đ$ ƒ đ0…‡fżŔËԔ˙đ@AA ŕđX đ$ ƒ đ0…‡33™żŔËԔ˙đ` AA đx đ$ c đ$€”eÂż˙źˆđŔ 0FđĂ   đ žđX đ$€ ƒ đ0…‡33™żŔËԔ˙đĐP ;đX đ$€ ƒ đ0…‡33™żŔËԔ˙đpđ ŔŰđX đ$€ ƒ đ0…‡33™żŔËԔ˙đ `{đî˘ đ$ ƒ đ0€„jÂżżŔËԔ˙C"ńż˙?đ w đnŸ¨&System Code Purportedly uses pattern PĄ,'  ˙˙ţđč˘ đ $ ƒ đ0€|oÂżżŔËԔ˙C"ńż˙?đSq ŕ đhŸ¨ Contract Aspect for P (abstract)Ą,!  đé˘ đ $ ƒ đ0€ÔtÂżżŔËԔ˙C"ńż˙?đ` qA í  điŸ¨%Subcontract Aspect Specific to SystemĄ(& đRB đ $ s đ*DżŔËԔ˙đ ))` đ^R đ $ “ đ6…‡ƒżŔËԔ˙đ๥ đxŇ đ $ ƒ đ0…‡GtF˙™żŔ˙C"ńż˙?đŔ € 0 đ„Ň đ$€ Ł đ<Ś˙…‡GEBHš˙™żŔ˙C"ńż˙?đpńA0 đX đ$ ƒ đ0…‡33™żŔËԔ˙đ`  đ⢠đ$ ƒ đ0€{ÂżżŔËԔ˙C"ńż˙?đC 0Đ đbŸ¨Compiled System Monitors PĄ,  ˙˙ţđʢ đ$ ƒ đ0€€ÂżżŔËԔ˙C"ńż˙?đ` 0@@  đJŸ¨Compile/ WeaveĄ  ˙™ţđd" đ$ Ł đ<…‡ƒżŔ˙˙ËԔÎ˙đ 0@ € 𺢠đ$ ƒ đ0€…ÂżƒżŔ˙𰠐ŕ ) đZŸ¨Aspects = Specs Ą.  2˙˙ţđH đ$ ƒ đ0ƒ“ŽŸ‹”Ţ˝hż˙ ?đ f˙˙˙™ęęęfĚ˙f˙˙˙̙Ěˆ‘Љş___PPT10‹ië.´´Äš”+Dń='ń š˙˙˙˙=ń @Bń +îúď g€ đ  đ+(ńđ• đ( đ đ(đx đ( c đ$€ŒŒÂż˙źˆđŔ 0FđĂ   đ žđX đ( ƒ đ0…‡fżŔËԔ˙đ0qqĐđX đ( ƒ đ0…‡33™żŔËԔ˙đP qqđ đˢ đ( ƒ đ0€@rÂżżŔËԔ˙C"ńż˙?đCAĄ# đKŸ¨Contract Spec for PĄ đç˘ đ( ƒ đ0€Ä‘ÂżżŔËԔ˙C"ńż˙?đP ĄqÝ  đgŸ¨#Subcontract Spec Specific to SystemĄ($ đRB đ( s đ*DżŔËԔ˙đ YYP đ^R đ( “ đ6…‡ƒżŔËԔ˙đĐáѐ đd" đ( Ł đ<…‡ƒżŔ˙˙ËԔÎ˙đ`pp𿢠đ"( ƒ đ0€4—ÂżƒżŔ˙đĄŔ đ_Ÿ¨Specs written in PCL Ą.  2˙˙ţđrâ đ&( s đ*…‡˙3żŔ˙C"ńż˙?đ đ° € 🢠đ'( ƒ đ0€$ÂżƒżŔ˙đY€Đ   đ\Ÿ¨MonGenĄ  2˙3ţŞđ*đ8 đ€ @ đ+(đ€ @đ` đ(‚ ƒ đ0…‡33™żŔËԔ˙đ Đđ;đ` đ(‚ ƒ đ0…‡33™żŔËԔ˙đŔpŰđ` đ(‚ ƒ đ0…‡33™żŔËԔ˙đ`0{đö˘ đ( ƒ đ0€XĄÂżżŔËԔ˙C"ńż˙?đQ`w đnŸ¨&System Code Purportedly uses pattern PĄ,'  ˙˙ţđf đ( “ đ6…‡33™żŔËԔ˙ˆđ  Đ đî˘ đ ( “ đ6€ ŚÂżżŔËԔ˙ˆC"ńż˙?đ€ ĐPƒ  đ`Ÿ¨Monitoring Aspect for SystemĄ( đŒŇ đ(‚ Ł đ<Ś˙…‡GEBHš˙™żŔ˙C"ńż˙?đÁp0 đ` đ( ƒ đ0…‡33™żŔËԔ˙đ`` đđę˘ đ( ƒ đ0€Đ¤ÂżżŔËԔ˙C"ńż˙?đđC Đ đbŸ¨Compiled System Monitors PĄ,  ˙˙ţđҢ đ( ƒ đ0€ŘŻÂżżŔËԔ˙C"ńż˙?đ0` @@  đJŸ¨Compile/ WeaveĄ  ˙™ţđ€Ň đ*( ƒ đ0…‡G¤6˙™żŔ˙C"ńż˙?đŔŔ  đH đ( ƒ đ0ƒ“ŽŸ‹”Ţ˝hż˙ ?đ f˙˙˙™ęęęfĚ˙f˙˙˙̙Ěˆ‘Љş___PPT10‹ië.´´Äš”+Dń='ń š˙˙˙˙=ń @Bń +î}ď g€ ”đŒ0 đĐđ$đ( đ đĐđr đĐ S 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ú˙˙˙"-ü-&TNPP &˙˙˙˙____________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________WingdingsRoman$¸ôŘbÜŘbě 0ôŘbWo 0¤‘o˙˙˙˙,ç˙Ľ .Š  @Łn˙ý?" d˙d@˙˙ď˙˙˙˙˙˙  @@``€€ đđ€@Ď   () **21//ŘbÜŘbě 0ôŘbWo 00ˇDWingdingsRoman$¸ôŘbÜŘbě 0ôŘbWo 0¤‘o˙˙˙˙,ç˙Ľ .Š  @Łn˙ý?" d˙d@˙˙ď˙˙˙˙˙˙  @@``€€ đđ€@Ď   () **21// 21         HGƒƒ    ƒƒHGr3w9xX    š Q™  ¤ Ť łľ¸šşťź˝žżÂĹČÉ,ĘĚ̓ đ0ƒ†AżŔĹA˙€ń ™˙f˙™3˙3˙˙3̙f@ń˙˙˙˙˙˙÷đ8óg€óh€ĐťLĂf ƚ;Nh8ƚ;úgţý42d2dě 0čŘbü˙˙Ný˙˙pűppű@ <ý4ddddŽ 0¤Üb|%¸b˙ <ý4BdBdŮb. 0¤ÜbŽb<ý4!d!dŮb. 0¤Übbˆ8Š0ş___PPT10‹ ŔŔ?Ů Ú %đ‘óC?Ÿ¨#Monitoring Design Pattern ContractsĄ$$Ÿ¨%Jason O. Hallstrom Clemson UniversityĄ"&˙˙ţŞ óŸ¨Design Patterns and MonitoringĄŸ¨žPatterns capture key system behaviors Behaviors often cross-cutting Usually, specified informally To monitor and test behaviors, informal specs are not enoughĄ8&<=&<=óEAŸ¨ Our ApproachŸ AOP aspect  Language construct, similar to a class, that implements cross-cutting behaviors for classes in an application Aspects can be used to capture design pattern contracts These aspects can be used to monitor system behavior to see if these contracts are respectedĄ Z ˙˙ţóGCŸ¨Methodology OverviewŸ¨BThe contract aspect contains the main checking logic for a patternĄ&C0óHDŸ¨Methodology OverviewŸ¨BThe contract aspect contains the main checking logic for a patternĄ&C0óIBŸ¨Methodology OverviewŸ¨GThe subcontract aspect contains definitions specific to the applicationĄ&H˙˙ţ2óŸ¨Methodology OverviewŸŞ óKGŸ¨Methodology OverviewŸŞ óLFŸ¨Methodology OverviewŸŞ óJEŸ¨Methodology OverviewŸŞ óD@Ÿ¨Benefits of Our ApproachŸ¨ĺNo instrumentation of source code Monitoring code separate from application code Contract aspect needs to be created only once for a given design pattern Only need to create new subcontract aspects for each system to be monitoredĄ&šLšLóZRŸ¨Aspect TerminologyŸ >Pointcut  A set of places in the class code where an aspect can insert new behavior Advice  Code associated with a pointcut that implements this new behaviorĄ2 ˙˙ţM˙˙ţEó*&Ÿ¨Monitoring with AspectsŸŞ ó Ÿ¨Pattern Example: ObserverŸŞ óMHŸ¨The Contract AspectŸ¨Formalizes the behavior intended by the pattern Advice provides the main monitoring code for the pattern However, method names/signatures and concrete definitions for relations vary from application to application Use abstract pointcuts and methods for these in the contract aspectĄ(ZÚ8ó[TŸ¨(Part of the Contract Aspect for ObserverŸ ŹProperty: After call to Update(), the Observer should be  consistent with its subjectĄWZWóNIŸ¨(Part of the Contract Aspect for ObserverŸ¨nAnother property: If a call to a Subject method results in a change in state, Notify() should have been calledĄooó3/Ÿ 4In the Subcontract Aspect& Ÿ¨Associate concrete classes with pattern roles Insert dummy interfaces in the class hierarchy (AspectJ feature) Pointcut definitions that associate role methods with actual methods in the application Definitions for relations specific to the given application ĄJ.A–.AW˙˙ţ>Ş^ óPMŸ¨Hospital ExampleŸ¨SPatients play the Subject role State includes temp and heart rate Notifying all observers is done with Pat.PageAll() Nurses observe Patients Keep track if Patients have a fever or not Updates done with Nrs.TempUpd(Pat) Doctors also observe Patients Record whether or not patients are in stable condition Updates done with Doc.CondUpd(Pat)ĄVNZH =˙˙ţ I    ˙˙ţ       ŞPkYqóT  !"#$%&'()*+,-./0123456789:;<=>?@ABCDEFGHIJKLMNOPQRSTUVWXYZ[\]^_`abcdefghijklmnopqrstuvwxyz{|}~€Ŕ‚ƒ„…†‡ˆ‰Š‹ŒŽ‘’“”•–—˜™š›œžŸ Ą˘Ł¤ĽŚ§¨ŠŞţ˙˙˙ŕ­ŽŻ°ą˛ł´ľśˇ¸šşťÚý˙˙˙ý˙˙˙żţ˙˙˙ÁÂĂÄĹĆÇČÉĘËĚÍÎĎĐŃŇÓÔŐŹţ˙˙˙ŘŮţ˙˙˙ŰÜÝŢߍáâăäĺćçčéęëěíîďđńňóôőö÷řúý˙˙˙űüýţ˙Root Entry˙˙˙˙˙˙˙˙d›Oφꪚ)č gq.ŔÄ×Current User˙˙˙˙˙˙˙˙˙˙˙˙;SummaryInformation(˙˙˙˙˙˙˙˙RPowerPoint Document(˙˙˙˙÷ĺDocumentSummaryInformation8˙˙˙˙˙˙˙˙˙˙˙˙ź˙˙˙˙˙˙˙˙˙˙˙˙˙˙˙˙˙˙˙˙˙˙˙˙˙˙˙˙˙˙˙˙˙˙˙˙ˇDTahomagsˆšˆš- ¸đˇç0¸z[ 0¸" ˇDTimes New Roman¸đˇç0¸z[ 0¸0ˇDWingdingsRoman¸đˇç0¸z[ 0¸¤‘O˙˙,ç˙Ľ .Š  @Łn˙ý?" d˙d@˙˙ď˙˙˙˙˙˙  @@``€€ đđ€8Ď   () **21// 21         HGƒƒ    ƒƒHGopqr3w9xX    š Q™  ¤ Ť ł´ľś¸šşťź˝žżÂĂĹČÉ,ĘĚ̓ đ0ƒ†AżŔĹA˙€ń ™˙f˙™3˙3˙˙3̙f@ń˙˙˙˙˙˙÷đ8óg€óh€ĐwLĂf ƚ;Nh8ƚ;úgţý42d2d ¸z[ 0&ţ˙˙ž˙˙˙pűppű@ <ý4ddddL¸ß 0ˆšô, ˙ <ý4BdBdL¸ž< 0ˆšŽˆ8Š0ş___PPT10‹ ŔŔ?Ů Ú %đóC?Ÿ¨#Monitoring Design Pattern ContractsĄ$$Ÿ¨%Jason O. Hallstrom Clemson UniversityĄ"&˙˙ţŞ óŸ¨Design Patterns and MonitoringĄŸ¨žPatterns capture key system behaviors Behaviors often cross-cutting Usually, specified informally To monitor and test behaviors, informal specs are not enoughĄ8&<=&<=óEAŸ¨ Our ApproachŸ AOP aspect  Language construct, similar to a class, that implements cross-cutting behaviors for classes in an application Aspects can be used to express design pattern contracts These aspects can be used to monitor system behavior to see if these contracts are respectedĄ Z ˙˙ţóGCŸ¨Methodology OverviewŸ¨BThe contract aspect contains the main checking logic for a patternĄ&C0óHDŸ¨Methodology OverviewŸ¨BThe contract aspect contains the main checking logic for a patternĄ&C0óIBŸ¨Methodology OverviewŸ¨GThe subcontract aspect contains definitions specific to the applicationĄ&H˙˙ţ2óŸ¨Methodology OverviewŸŞ óKGŸ¨Methodology OverviewŸŞ óLFŸ¨Methodology OverviewŸŞ óJEŸ¨Methodology OverviewŸŞ óD@Ÿ¨Benefits of Our ApproachŸ¨ĺNo instrumentation of source code Monitoring code separate from application code Contract aspect needs to be created only once for a given design pattern Only need to create new subcontract aspects for each system to be monitoredĄ&šLšLóZRŸ¨Aspect TerminologyŸ >Pointcut  A set of places in the class code where an aspect can insert new behavior Advice  Code associated with a pointcut that implements this new behaviorĄ2 ˙˙ţM˙˙ţEó*&Ÿ¨Monitoring with AspectsŸŞ ó Ÿ¨Pattern Example: ObserverŸŞ óMHŸ¨The Contract AspectŸ¨Formalizes the behavior intended by the pattern Advice provides the main monitoring code for the pattern However, method names/signatures and concrete definitions for relations vary from application to application Use abstract pointcuts and methods for these in the contract aspectĄ(ZÚ8ó[TŸ¨(Part of the Contract Aspect for ObserverŸ ŹProperty: After call to Update(), the Observer should be  consistent with its subjectĄWZWóNIŸ¨(Part of the Contract Aspect for ObserverŸ¨nAnother property: If a call to a Subject method results in a change in state, Notify() should have been calledĄooó3/Ÿ 4In the Subcontract Aspect& Ÿ¨Associate concrete classes with pattern roles Insert dummy interfaces in the class hierarchy (AspectJ feature) Pointcut definitions that associate role methods with actual methods in the application Definitions for relations specific to the given application ĄJ.A–.AW˙˙ţ>Ş^ óPMŸ¨Hospital ExampleŸ¨SPatients play the Subject role State includes temp and heart rate Notifying all observers is done with Pat.PageAll() Nurses observe Patients Keep track if Patients have a fever or not Updates done with Nrs.TempUpd(Pat) Doctors also observe Patients Record whether or not patients are in stable condition Updates done with Doc.CondUpd(Pat)ĄVNZH =˙˙ţ I    ˙˙ţ       Ş>g YióTNŸ¨#Pointcuts in the Subcontract AspectŸ¨tIn the subcontract aspect, we give definitions for the abstract pointcuts mentioned in the contract aspect Examples:óRLŸ¨Defining RelationsŸ¨iNeed to provide definitions of application-specific relations in the subcontract aspect Example: Modifiedó\UŸ¨Defining RelationsŸ¨Another example: Consistentó:6Ÿ¨ DiscussionŸ¨"Contract aspects generally harder to write than the subcontract aspects Only have to write them once! Information such as method call sequences can be tracked using auxiliary variables in the aspect Pointcuts can encompass more than just method calls Current and future work MonGen and PCLĄŒH­H­˙˙ţ˙˙ţŞ óWPŸ¨Presented MethodologyŸŞ óXQŸ¨MonGen MethodologyŞ ŸŞ óB>Ÿ¨ ConclusionŸ¨ßDesign patterns often describe behaviors that encompass multiple classes Aspects are a natural way to monitor such behaviors Separating the essence of the pattern from the details of the application saves time and effort Ą*ßß˙˙ţó Ÿ¨ Questions?Ÿ¨Ve-mail tyler@cse.ohio-state.edu MonGen Web page: www.cse.ohio-state.edu/~tyler/MonGenĄ`%˙˙ţ%˙˙fţŞ> $ňóU 0ßęî‰ď g€  đ˜0 đđ0đ( đ đđx đ c đ$€0Úż˙źˆđŔ 0FđĂ  Ú đ žđx đ c đ$€Úż˙źˆđŕ €ŕđĂ Ú đ žđH đ ƒ đ0ƒ“ŽŸ‹”Ţ˝hż˙ ?đ f˙˙˙™˙˙ĚfĚ˙f˙˙˙̙Ěˆ‘Љş___PPT10‹ië.yśÄ@Ł:#+Dń='ń š˙˙˙˙=ń @Bń +r^P*őM? :Ł,\™č)é(€ŕŕ€ ň/Č 0ŇŐ0ˇDArialngsRo'¸¤Üb$¸ôŘbÜŘbě 0ôŘbWo 0ˇDTahomagsRo'¸¤Üb$¸ôŘbÜŘbě 0ôŘbWo 0" ˇDTimes New Roman$¸ô ţ˙˙˙ţ˙˙˙˙˙˙˙˙˙˙˙˙˙˙˙˙˙˙˙˙˙˙˙˙˙˙˙˙˙˙˙˙˙˙˙˙˙˙˙˙˙˙˙˙˙˙˙˙˙˙˙˙˙˙˙˙˙˙˙˙˙˙˙˙˙˙˙˙˙˙˙˙˙˙˙˙˙˙˙˙˙˙˙˙˙˙˙˙˙˙˙˙˙˙˙˙˙˙˙˙˙˙˙˙˙˙˙˙˙˙˙˙˙˙˙˙˙˙˙˙˙˙˙˙˙˙˙˙˙˙˙˙˙˙˙˙˙˙˙˙˙˙˙˙˙˙˙˙˙˙˙˙˙˙˙˙˙˙˙˙˙˙˙˙˙˙˙˙˙˙˙˙˙˙˙˙˙˙˙˙˙˙˙˙˙˙˙˙˙˙˙˙˙˙˙˙˙˙˙˙˙˙˙˙˙˙˙˙˙˙˙˙˙˙˙˙˙˙˙˙˙˙˙˙˙˙˙˙˙˙˙˙˙˙˙˙˙˙˙˙˙˙˙˙˙˙˙˙˙˙˙˙˙˙˙˙˙˙˙˙˙˙˙˙˙˙˙˙˙˙˙˙˙˙˙˙˙˙˙˙˙˙˙˙˙˙˙˙˙˙˙˙˙˙˙˙˙˙˙˙˙˙˙˙˙˙˙˙˙˙˙˙˙˙˙˙˙˙˙˙˙˙˙˙˙˙˙˙˙˙˙˙˙˙˙˙˙˙˙˙˙˙˙˙˙˙˙˙˙˙˙˙˙˙˙˙˙˙˙˙˙˙˙˙˙˙˙˙˙˙˙˙˙˙˙˙˙˙˙˙˙˙˙˙˙˙˙˙˙˙˙˙˙˙˙˙˙˙˙˙˙˙˙˙˙˙˙˙˙˙˙˙˙˙˙˙˙˙˙˙˙˙˙˙˙˙˙˙˙˙˙˙˙˙˙ţ˙ZŐÍ՜.“—+,ůŽ0Œˆ¨´źÄĚ Ô Üä ěôü  +äOn-screen Showun-s÷ĺří  ArialTahomaTimes New Roman WingdingsShimmer$Monitoring Design Pattern ContractsDesign Patterns and Monitoring Our ApproachMethodology OverviewMethodology OverviewMethodology OverviewMethodology OverviewMethodology OverviewMethodology OverviewMethodology OverviewBenefits of Our ApproachAspect TerminologyMonitoring with AspectsPattern Example: ObserverThe Contract Aspect)Part of the Contract Aspect for Observer)Part of the Contract Aspect for ObserverIn the Subcontract Aspect…Hospital Example$Pointcuts in the Subcontract AspectDefining RelationsDefining Relations DiscussionPresented MethodologyMonGen Methodology Conclusion Questions?  Fonts UsedDesign Template Slide Titlesö!_Ŕ‘ăÓĺ ô¸Ben TylerBen TylerNŸ¨#Pointcuts in the Subcontract AspectŸ¨tIn the subcontract aspect, we give definitions for the abstract pointcuts mentioned in the contract aspect Examples:óRLŸ¨Defining RelationsŸ¨iNeed to provide definitions of application-specific relations in the subcontract aspect Example: Modifiedó\UŸ¨Defining RelationsŸ¨Another example: Consistentó:6Ÿ¨ DiscussionŸ¨"Contract aspects generally harder to write than the subcontract aspects Only have to write them once! Information such as method call sequences can be tracked using auxiliary variables in the aspect Pointcuts can encompass more than just method calls Current and future work MonGen and PCLĄŒH­H­˙˙ţ˙˙ţŞ óWPŸ¨Presented MethodologyŸŞ óXQŸ¨MonGen MethodologyŞ ŸŞ óB>Ÿ¨ ConclusionŸ¨ßDesign patterns often describe behaviors that encompass multiple classes Aspects are a natural way to monitor such behaviors Separating the essence of the pattern from the details of the application saves time and effort Ą*ßß˙˙ţó Ÿ¨ Questions?Ÿ¨Ve-mail tyler@cse.ohio-state.edu MonGen Web page: www.cse.ohio-state.edu/~tyler/MonGenĄ`%˙˙ţ%˙˙fţŞ> $ňó° 0ßęî‰ď g€  đ˜`đÜđ0đ( đ đÜđx đÜ c đ$€ä1gż˙źˆđŔ 0FđĂ  g đ žđx đÜ c đ$€Œ2gż˙źˆđࠐPđĂ g đ žđH đÜ ƒ đ0ƒ“ŽŸ‹”Ţ˝hż˙ ?đ f˙˙˙™ęęęfĚ˙f˙˙˙̙Ěˆ‘Љş___PPT10‹ië.´´Äš”+Dń='ń š˙˙˙˙=ń @Bń +rß,EëUőAíť,|X\öżč)é(€ŕŕ€ ň/Č 0ŇŐ0ˇDArialngsRo'¸¤Üb$¸ôŘbÜŘbě 0ôŘbWo 0ˇDTahomagsRo'¸¤Üb$¸ôŘbÜŘbě 0ôŘbWo 0" ˇDTimes New Roman$¸ôŘbÜŘbě 0ôŘbWo 00ˇD 21         HGƒƒ    ƒƒHG 39xX    š Q    ł    ,ƒ đ0ƒ†AżŔĹA˙€ń ™˙f˙™3˙3˙˙3̙f@ń˙˙˙˙˙˙÷đ8óg€óh€ĐťLĂf ƚ;Nh8ƚ;úgţý42d2dě 0čŘb4ü˙˙–ý˙˙pűppű@ <ý4ddddŽ 0¤Üb|%¸b˙ <ý4BdBdŮb. 0¤ÜbŽb<ý4!d!dŮb. 0¤Übbˆ8Š0ş___PPT10‹ ŔŔ?Ů Ú %đ‘óC?Ÿ¨#Monitoring Design Pattern ContractsĄ$$Ÿ¨%Jason O. Hallstrom Clemson UniversityĄ"&˙˙ţŞ óŸ¨Design Patterns and MonitoringĄŸ¨žPatterns capture key system behaviors Behaviors often cross-cutting Usually, specified informally To monitor and test behaviors, informal specs are not enoughĄ8&<=&<=óEAŸ¨ Our ApproachŸ AOP aspect  Language construct, similar to a class, that implements cross-cutting behaviors for classes in an application Aspects can be used to capture design pattern contracts These aspects can be used to monitor system behavior to see if these contracts are respectedĄ Z ˙˙ţóGCŸ¨Methodology OverviewŸ¨BThe contract aspect contains the main checking logic for a patternĄ&C0óHDŸ¨Methodology OverviewŸ¨BThe contract aspect contains the main checking logic for a patternĄ&C0óIBŸ¨Methodology OverviewŸ¨GThe subcontract aspect contains definitions specific to the applicationĄ&H˙˙ţ2óŸ¨Methodology OverviewŸŞ óKGŸ¨Methodology OverviewŸŞ óLFŸ¨Methodology OverviewŸŞ óJEŸ¨Methodology OverviewŸŞ óD@Ÿ¨Benefits of Our ApproachŸ¨ĺNo instrumentation of source code Monitoring code separate from application code Contract aspect needs to be created only once for a given design pattern Only need to create new subcontract aspects for each system to be monitoredĄ&šLšLóZRŸ¨Aspect TerminologyŸ >Pointcut  A set of places in the class code where an aspect can insert new behavior Advice  Code associated with a pointcut that implements this new behaviorĄ2 ˙˙ţM˙˙ţEó*&Ÿ¨Monitoring with AspectsŸŞ ó Ÿ¨Pattern Example: ObserverŸŞ óMHŸ¨The Contract AspectŸ¨Formalizes the behavior intended by the pattern Advice provides the main monitoring code for the pattern However, method names/signatures and concrete definitions for relations vary from application to application Use abstract pointcuts and methods for these in the contract aspectĄ(ZÚ8ó[TŸ¨(Part of the Contract Aspect for ObserverŸ ŹProperty: After call to Update(), the Observer should be  consistent with its subjectĄWZWóNIŸ¨(Part of the Contract Aspect for ObserverŸ¨nAnother property: If a call to a Subject method results in a change in state, Notify() should have been calledĄooó3/Ÿ 4In the Subcontract Aspect& Ÿ¨Associate concrete classes with pattern roles Insert dummy interfaces in the class hierarchy (AspectJ feature) Pointcut definitions that associate role methods with actual methods in the application Definitions for relations specific to the given application ĄJ.A–.AW˙˙ţ>Ş^ óPMŸ¨Hospital ExampleŸ¨SPatients play the Subject role State includes temp and heart rate Notifying all observers is done with Pat.PageAll() Nurses observe Patients Keep track if Patients have a fever or not Updates done with Nrs.TempUpd(Pat) Doctors also observe Patients Record whether or not patients are in stable condition Updates done with Doc.CondUpd(Pat)ĄVNZH =˙˙ţ I    ˙˙ţ       ŞPkYqóTNŸ¨#Pointcuts in the Subcontract AspectŸ¨tIn the subcontract aspect, we give definitions for the abstract pointcuts mentioned in the contract aspect Examples:óRLŸ¨Defining RelationsŸ¨iNeed to provide definitions of application-specific relations in the subcontract aspect Example: Modifiedó\UŸ¨Defining RelationsŸ¨Another example: Consistentó:6Ÿ¨ DiscussionŸ¨"Contract aspects generally harder to write than the subcontract aspects Only have to write them once! Information such as method call sequences can be tracked using auxiliary variables in the aspect Pointcuts can encompass more than just method calls Current and future work MonGen and PCLĄŒH­H­˙˙ţ˙˙ţŞ óWPŸ¨Presented MethodologyŸŞ óXQŸ¨MonGen MethodologyŞ ŸŞ óB>Ÿ¨ ConclusionŸ¨ßDesign patterns often describe behaviors that encompass multiple classes Aspects are a natural way to monitor such behaviors Separating the essence of the pattern from the details of the application saves time and effort Ą*ßß˙˙ţó Ÿ¨ Questions?Ÿ¨Ve-mail tyler@cse.ohio-state.edu MonGen Web page: www.cse.ohio-state.edu/~tyler/MonGenĄ`%˙˙ţ%˙˙fţŞ> $ňó° 0ßęîÖ ď g€ í đĺ  đ$đ} đ( đ đ$đX đ$ ƒ đ0…‡fżŔËԔ˙đ@AA ŕđX đ$ ƒ đ0…‡33™żŔËԔ˙đ` AA đx đ$ c đ$€X |ż˙źˆđŔ 0FđĂ  | đ žđX đ$€ ƒ đ0…‡33™żŔËԔ˙đĐP ;đX đ$€ ƒ đ0…‡33™żŔËԔ˙đpđ ŔŰđX đ$€ ƒ đ0…‡33™żŔËԔ˙đ `{đî˘ đ$ ƒ đ0€Ŕ6yżżŔËԔ˙C"ńż˙?đ w đnŸ¨&System Code Purportedly uses pattern PĄ,'  ˙˙ţđč˘ đ $ ƒ đ0€ŔĂyżżŔËԔ˙C"ńż˙?đSq ŕ đhŸ¨ Contract Aspect for P (abstract)Ą,!  đé˘ đ $ ƒ đ0€Ř8yżżŔËԔ˙C"ńż˙?đ` qA í  điŸ¨%Subcontract Aspect Specific to SystemĄ(& đRB đ $ s đ*DżŔËԔ˙đ ))` đ^R đ $ “ đ6…‡ƒżŔËԔ˙đ๥ đxŇ đ $ ƒ đ0…‡GtF˙™żŔ˙C"ńż˙?đŔ € 0 đ„Ň đ$€ Ł đ<Ś˙…‡GEBHš˙™żŔ˙C"ńż˙?đpńA0 đX đ$ ƒ đ0…‡33™żŔËԔ˙đ`  đ⢠đ$ ƒ đ0€˜űyżżŔËԔ˙C"ńż˙?đC 0Đ đbŸ¨Compiled System Monitors PĄ,  ˙˙ţđʢ đ$ ƒ đ0€ô|żżŔËԔ˙C"ńż˙?đ` 0@@  đJŸ¨Compile/ WeaveĄ  ˙™ţđd" đ$ Ł đ<…‡ƒżŔ˙˙ËԔÎ˙đ 0@ € 𺢠đ$ ƒ đ0€,|żƒżŔ˙𰠐ŕ ) đZŸ¨Monitoring Code Ą.  2˙˙ţđH đ$ ƒ đ0ƒ“ŽŸ‹”Ţ˝hż˙ ?đ f˙˙˙™ęęęfĚ˙f˙˙˙̙Ěˆ‘Љş___PPT10‹ië.´´Äš”+Dń='ń š˙˙˙˙=ń @Bń +r¸XWāőQí”X˘\öżčz)é(€ŕŕ€      !"#$%ţ˙˙˙˙˙˙˙˙˙˙˙˙˙˙˙˙˙˙˙˙˙˙˙˙˙˙˙˙˙˙˙˙˙˙˙˙˙˙˙˙˙˙˙˙˙˙˙˙˙˙˙˙˙˙˙˙˙˙˙˙˙˙˙˙˙˙˙˙˙˙˙˙˙˙˙˙˙˙˙˙˙˙˙˙˙˙˙˙˙˙˙˙˙˙˙˙˙˙˙˙˙˙˙˙˙˙˙˙˙˙˙˙˙˙˙˙˙˙˙˙˙˙˙˙˙˙˙˙˙˙˙˙˙˙˙˙˙˙˙˙˙˙˙˙˙˙˙˙˙˙˙˙˙˙˙˙˙˙˙˙˙˙˙˙˙˙˙˙˙˙˙˙˙˙˙˙˙˙˙˙˙˙˙˙˙˙˙˙˙˙˙˙˙˙˙˙˙˙˙˙˙˙˙˙˙˙˙˙˙˙˙˙˙˙˙˙˙˙˙˙˙˙˙˙˙˙˙˙˙˙˙˙˙˙˙˙˙˙˙˙˙˙˙˙˙˙˙˙˙˙˙˙˙˙˙˙˙˙˙˙˙˙˙˙˙˙˙˙˙˙˙˙˙˙˙˙˙˙˙˙˙˙˙˙˙˙˙˙˙˙˙˙˙˙˙˙˙˙˙˙˙˙˙˙˙˙˙˙˙˙˙˙˙˙˙˙˙˙˙˙˙˙˙˙˙˙˙˙˙˙˙˙˙˙˙˙˙˙˙˙˙˙˙˙˙˙˙˙˙˙˙˙˙˙˙˙˙˙˙˙˙˙˙ ň/Č 0ŇŐ0ˇDArialngsRo'¸¤Üb$¸ôŘbÜŘbě 0ôŘbWo 0ˇDTahomagsRo'¸¤Üb$¸ôŘbÜŘbě 0ôŘbWo 0" ˇDTimes New Roman$¸ôŘbÜŘbě 0ôŘbWo 00ˇDWingdingsRoman$¸ôŘbÜŘbě 0ôŘbWo 0¤‘o˙˙˙˙,ç˙Ľ .Š  @Łn˙ý?" d˙d@˙˙ď˙˙˙˙˙˙  @@``€€ đđ€@Ď   () **21// 21         HGƒƒ    ƒƒHG39X    š Q        , ƒ đ0ƒ