Kuleli sonto sizobe sibheka izisekelo zeCognos Mashup Service. Sizoyidiliza ibe izingxenye zayo ukuze sibone ukuthi ikuletha kanjani ukubaluleka kokuhlanganiswa kweminikelo ye-IBM Cognos.
Ukuze usebenzise i-Cognos Mashup Service umuntu kudingeka ahlangabezane nalezi zidingo ezilandelayo:
1. IBM Cognos BI Server 8.4.1
2. Iklayenti elikwaziyo ukusebenzisana ne-SOAP noma i-URL based services nge-HTTP
I-Cognos Connection kanye ne-Cognos Mashup Service ingatholakala ngesango leCognos
Qaphela Ababhali: Sebenzisa izwi lomlingisi u-R. Lee Ermey (u-Gunny ovela ku- Metal Jacket Full)
Ezindabeni ezimbalwa ezilandelayo ngizoba ngumfundisi wakho. Ungangibiza "Drill Sergeant". Ngizobe ngikwephula abaqashwa phansi ezinhlanzini eziphansi eziqhamuka futhi bakwakhe ubuyisele ezingcezwini ze-silicon ezi-laser. Uzoshiya lapha namathuluzi owadingayo ukuze uphile enkundleni yempi eyaziwa ngokuthi yiCognos Mashup Service. Uzokwazi ukufaka ikhodi ngendlela yakho ngokusebenzisa indawo eyingozi yokubona ngokwezifiso. Uzokwazi ukuhlukanisa umngani nesitha uma kukhulunywa ngemibono yokuklama. Ungahle ucabange ukuthi uzobhalwa ngekhodi ngesithembiso sezinsizakalo ezilula ze-REST. Kepha lokhu akusikho ukuphumula kukamama wakho. Ngingayithola i- “YES DRILL SERGEANT!”? Manje yehla unginike abangamashumi amabili!
Kulungile, ake ngiphumule kumlingiswa ukuze ngikunikeze iqonde. Kuleli sonto sizobe sibheka izisekelo zeCognos Mashup Service. Sizoyidiliza ibe izingxenye zayo ukuze sibone ukuthi ikuletha kanjani ukubaluleka kokuhlanganiswa kweminikelo ye-IBM Cognos.
Ukuze usebenzise i-Cognos Mashup Service umuntu kudingeka ahlangabezane nalezi zidingo ezilandelayo:
1. IBM Cognos BI Server 8.4.1
2. Iklayenti elikwaziyo ukusebenzisana ne-SOAP noma i-URL based services nge-HTTP
I-Cognos Connection kanye ne-Cognos Mashup Service ingatholakala ngesango leCognos
Isevisi ye-Cognos Mashup yakhiwe izingxenye ezimbili ezihlukile ezisebenza ngasikhathi sinye ukuvumela abathengi ukuthi baphule imininingwane yokubika ngaphandle kwesibukeli sombiko kanye nokubukwa ngokwezifiso. Ingxenye eyodwa yesevisi isikhombimsebenzisi sokuthutha kanti enye ukulayishwa okukhokhelwayo. Kumdwebo ongezansi singasibheka isicelo njengokuthutha kanye nomphendulayo njengomthwalo okhokhelwayo.
I-interface yezokuthutha iyindlela esingacela ngayo imibiko. Kunezinketho ezimbili abathengi abangazisebenzisa. Eyodwa isuselwe ku-SOAP kanti enye isebenzisa ama-URL wesitayela se-REST. Zombili lezi zinhlaka zisebenzisa i-HTTP futhi ziyafana ngesakhiwo. Lokho wukuthi, ekusebenzeni okunengqondo ngakunye kusixhumi esibonakalayo sesitayela se-SOAP kunokufana okufanayo kwisitayela se-REST. Ukucaciswa kwendlela ngqo kugcina ama-idiosyncrasies wesitayela sokuncenga esikhethiwe. Kepha iqiniso ukuthi… ikhono lokungena ngemvume, ukucela umbiko, ukuthola umphumela, nokungena ngemvume kutholakala kuwo womabili amakamu.
Ngakho-ke ungazibuza ukuthi “wena, kungani ngingakhetha omunye ngaphezu komunye?” Imvamisa impendulo yalokhu iziveza lapho kubhekwa ubuchwepheshe bephrojekthi noma izingqungquthela. Thatha isibonelo somthengi esakhiwe ngokuphelele ohlangothini lwekhasimende. Isebenzisa i-HTML neJavaScript ukuxhumana ne-Cognos Mashup Service. Ku-vacuum i-REST URL interface esetshenziselwe ukuhlanganisa okulula. Ngokuphikisana, enye iphrojekthi ingahle ibe nezimpahla zeCognos SDK ezikhona ku-Java servlet. Bajwayele ama-SOAP stubs adalulwe yi-SDK. Kuzizwa kungokwemvelo ukuthi lesi simo sincike ekubeni umthengi osuselwe ku-SOAP wezinsizakalo ze-mashup. Ngokwenzayo lokhu bekungeyona inkinga enzima ukusilinganisa. Lapho ubheka izinketho ezimbili eyodwa ihlala ibonakala ilingana kangcono lapho kubhekwa isisombululo sonke. Imizamo yokusebenzisa omunye uzizwe uphoqelekile.
Imisebenzi enengqondo enikezwe isikhombimsebenzisi sokuthutha ivumela umthengi ukuthi enze imisebenzi egxile ekusebenziseni imibiko nokuhlaziya kweCognos. Iqoqo lezinketho livumela umthengi ukuthi amashe ngomjikelezo wokuphila ophelele wokusebenzisa umbiko. Lokhu kufaka:
• Ukufakazela ubuqiniso
• Ukunikezwa kwepharamitha
• Bika Ukubulawa (okuvumelanayo nokuncomekayo)
• Ukuziphatha kwe-drill
• Ukubuyisa Umphumela
Insizakalo ye-mashup ize inikeze okukhona okungatholakali nge-SDK. Kodwa-ke, sizogcina leyo ngxoxo nge-athikili ezayo eqhathanisa futhi iqhathanise Insizakalo yeMashup ne-SDK.
Manje sinezindlela zokucela imibiko ngesethi yezinsizakalo ezisuselwa ku-HTTP. Yini ephuma komunye umkhawulo? Lokho kusiholela engxenyeni yesibili yensizakalo ye-mashup. Faka… ”I-Payload”.
Enye yezinketho esingazicacisa lapho sicela umbiko ngensizakalo ye-mashup yifomethi yokukhipha. Kunezinketho eziningi ezitholakalayo ezibandakanya i-HTML Layout Data XML (LDX), neJSON. Kunabanye abambalwa kepha lokhu kumboza ububanzi ku-abroad umqondo. I-HTML yinhle kakhulu ongayilindela. Zibukeka zifana ncamashi nalokho umuntu angakuthola embikweni obukwe ngumbukeli wombiko ngaphakathi kweCognos Connection. Amafomethi athembisa kakhulu yi-LDX ne-JSON. Empeleni uma kukhona ukushaya okucacile okushaywa yiCognos Mashup Service ukwethulwa kwalawa mafomethi amabili.
Womabili lawa mafomethi aveza umphumela wombiko ngefomethi engathathi hlangothi. Lokhu kuvumela umthengi wokukhishwa kombiko ukuthi anikeze imininingwane kunoma yikuphi ukubonwa okungaqonda i-JSON noma i-XML. Thatha isikhashana ukufunda lokho futhi.
Imininingwane yombiko manje isikhululekile emaketangeni abekwe kuwo yiCognos Viewer. Idatha manje isiyakwazi ukuzulazula ezindaweni ezazingasebenzi ngaphambilini. Isibonelo, i-Rich Internet Applications ingasebenzisa izinhlaka ezifana ne-Google Visualization API noma i-Ext-JS ukunonga isethulo sedatha. Ukuhlanganiswa kwamaselula kutholakala kakhulu njengoba umphumela ungashintshelwa kulawa madivayisi. Idatha yama-Cognos ingamcinwa ngedatha evela kwimithombo yangaphandle. Eqinisweni, idatha evela kuCognos BI isanda kubonakala, endle, ihlanganisa imininingwane evela ohlelweni oludumile lokuphathwa kokuqukethwe kugridi efanayo ye-Ext-JS engezansi! Ihlazo! Kusho ukuthini lokhu? Kulokhu, kuvumele amasethi womabili wedatha ukuthi aphathwe ngamathuluzi abo endabuko ngaphandle kwenqubo eyinkimbinkimbi eyenziwe ukuwahlanganisa kusiphequluli.
Ngezansi ukuthembeka okulula okuphansi okuhlekisa okukhombisa imithombo yedatha eyingqayizivele eyabelana ngekhasi elifanayo.
Lokhu kuvumelana nezimo kuza namanye ama-tradeoffs. Njengoba sihlehlisa ukunikezwa kwedatha kwenye ingxenye yohlelo lokusebenza empeleni sidlulisa okunye kokuthuthuka okwenziwa ngokwesiko ngumbhali wombiko kumuntu oyingcweti kubuchwepheshe bokubona. Umzamo wokufaka idatha yombiko ekubukweni uzohluka ngokuqhathaniswa nokubhalwa kombiko ophelele we-pixel kuma-studios wendabuko. Abahleli bamaphrojekthi badinga ukuqonda umphumela lokhu okuba nawo kumugqa wesikhathi wentuthuko. Umuntu uzothola ukuthi izilinganiso zinembe kakhudlwana lapho kwamukelwa lesi sigaba esisha sabasebenzi.
Ukufingqa lolu cucu, i-Cognos Mashup Service iyisengezo esijabulisayo ku-arsenal yamathuluzi atholakalayo ekuxubeni. Ivumela idatha ye-BI ukuthi idlule ngaphezu kokugxiviza i-an , equkethe umbukeli wombiko, ekhasini le-HTML. Noma kunjalo, isikhathi sisifundisile ukuthi akukho lutho lwamahhala. Ukuvumelana nezimo kokwethula idatha kuza ngezindleko zokuletha amasethi wamakhono amasha kusethi yesisombululo. Vumela lolu lwazi lungene isikhashana. Kokufakiwe okulandelayo kulolu chungechunge sizongena emininingwaneni enkudlwana maqondana nokusetshenziswa kwe-mashup nokuthi ikwazi kanjani ukumelana nezinye izixazululo.
