{"id":477131,"date":"2023-08-09T09:08:09","date_gmt":"2023-08-09T09:08:09","guid":{"rendered":""},"modified":"2023-09-05T11:14:05","modified_gmt":"2023-09-05T11:14:05","slug":"event-driven-architecture","status":"publish","type":"wiki","link":"https:\/\/oneproxy.pro\/tr\/wiki\/event-driven-architecture\/","title":{"rendered":"Olay odakl\u0131 mimari"},"content":{"rendered":"

Olay g\u00fcd\u00fcml\u00fc mimari (EDA), ortamdaki de\u011fi\u015fikliklere tepki veren uygulamalar\u0131 veya sistemleri tasarlamak ve uygulamak i\u00e7in bir yap\u0131 sa\u011flayan bir yaz\u0131l\u0131m tasar\u0131m modelidir. Bu reaktif davran\u0131\u015f tipik olarak olaylar\u0131n al\u0131nmas\u0131n\u0131, i\u015flenmesini ve g\u00f6nderilmesini kapsayarak sistem bile\u015fenlerinin ayr\u0131k bir \u015fekilde \u00e7al\u0131\u015fmas\u0131na olanak tan\u0131r, b\u00f6ylece \u00f6l\u00e7eklenebilirli\u011fi ve uyarlanabilirli\u011fi art\u0131r\u0131r.<\/p>\n

Olay Odakl\u0131 Mimarinin Do\u011fu\u015fu<\/h2>\n

Olay g\u00fcd\u00fcml\u00fc programlaman\u0131n tarihi, grafik kullan\u0131c\u0131 aray\u00fczlerinin (GUI'ler) ilk g\u00fcnlerine kadar uzan\u0131r ve k\u00f6kenleri 1960'lar\u0131n sonu ve 1970'lerin ba\u015f\u0131na dayan\u0131r. Tasar\u0131m modeli, do\u011fas\u0131 gere\u011fi \u00f6ng\u00f6r\u00fclemeyen ve e\u015fzamans\u0131z olan, d\u00fc\u011fme t\u0131klamalar\u0131 veya tu\u015f vuru\u015flar\u0131 gibi kullan\u0131c\u0131 taraf\u0131ndan ba\u015flat\u0131lan eylemleri y\u00f6netmek i\u00e7in do\u011fal bir \u00e7\u00f6z\u00fcm olarak ortaya \u00e7\u0131kt\u0131. Bu ba\u011flamda, kullan\u0131c\u0131 eylemleri, sistem taraf\u0131ndan olu\u015fturulan olaylar veya di\u011fer programlardan gelen mesajlar taraf\u0131ndan belirlenen program ak\u0131\u015f\u0131n\u0131 ele almak i\u00e7in olay odakl\u0131 programlama fikri ortaya \u00e7\u0131kt\u0131.<\/p>\n

1990'lar\u0131n sonlar\u0131nda ve 2000'lerde da\u011f\u0131t\u0131lm\u0131\u015f sistem ve hizmetlerin y\u00fckseli\u015fi, artan etkile\u015fim karma\u015f\u0131kl\u0131\u011f\u0131n\u0131n \u00fcstesinden gelmek i\u00e7in daha karma\u015f\u0131k olay odakl\u0131 mimarileri gerektirdi ve sonu\u00e7ta hem i\u00e7 hem de d\u0131\u015f olaylara tepki verebilecek sistemlerin yarat\u0131lmas\u0131na yol a\u00e7t\u0131.<\/p>\n

Olay Odakl\u0131 Mimari Ortaya \u00c7\u0131kt\u0131<\/h2>\n

Olay Odakl\u0131 Mimari (EDA), olaylar\u0131n \u00fcretimine, tespitine, t\u00fcketimine ve tepkisine odaklanan bir yaz\u0131l\u0131m mimarisi paradigmas\u0131d\u0131r. Bu olaylar, fareye t\u0131klamak veya bir tu\u015fa basmak gibi bir kullan\u0131c\u0131 eylemiyle veya ba\u015fka bir sistemden mesaj almak gibi bir sistem eylemiyle tetiklenen durum de\u011fi\u015fikli\u011fini belirtir.<\/p>\n

Bir EDA'da, bir sistemin bile\u015fenleri, olaylar\u0131 \u00fcreterek ve t\u00fcketerek birbirleriyle etkile\u015fime girer; burada bir olay, durumdaki \u00f6nemli bir de\u011fi\u015fiklik olarak tan\u0131mlan\u0131r. Bu bile\u015fenler ayr\u0131k bir \u015fekilde \u00e7al\u0131\u015farak sistemlerin daha esnek, \u00f6l\u00e7eklenebilir ve de\u011fi\u015fen gereksinimlere veya \u00e7evre ko\u015fullar\u0131na uyarlanabilir olmas\u0131na olanak tan\u0131r.<\/p>\n

Olay Odakl\u0131 Mimarinin Yap\u0131s\u0131 ve \u0130\u015fleyi\u015fi<\/h2>\n

Olay odakl\u0131 mimarinin i\u00e7 yap\u0131s\u0131 d\u00f6rt ana bile\u015fen etraf\u0131nda d\u00f6ner:<\/p>\n

    \n
  1. Etkinlik Yap\u0131mc\u0131lar\u0131:<\/strong> Etkinlikleri olu\u015fturan ve bunlar\u0131 etkinlik kanal\u0131nda yay\u0131nlayan bile\u015fenler.<\/li>\n
  2. Etkinlik Kanal\u0131:<\/strong> Olay da\u011f\u0131t\u0131m\u0131 i\u00e7in kanal.<\/li>\n
  3. Etkinlik T\u00fcketicileri:<\/strong> Olaylar\u0131 t\u00fcketmek i\u00e7in olay kanal\u0131na abone olan bile\u015fenler.<\/li>\n
  4. Etkinlik \u0130\u015flemcileri:<\/strong> Genellikle belirli bir eylemi ger\u00e7ekle\u015ftirerek olaylara tepki veren bile\u015fenler.<\/li>\n<\/ol>\n

    Bir EDA s\u00fcreci \u015fu ad\u0131mlar\u0131 takip eder:<\/p>\n

      \n
    1. Olay Yap\u0131mc\u0131s\u0131 bir durum de\u011fi\u015fikli\u011fini alg\u0131lar ve bir olay olu\u015fturur.<\/li>\n
    2. Etkinlik, Etkinlik Kanal\u0131nda yay\u0131nlan\u0131r.<\/li>\n
    3. Etkinlik Kanal\u0131na abone olan Etkinlik T\u00fcketicileri etkinli\u011fi t\u00fcketir.<\/li>\n
    4. Olay \u0130\u015fleyicileri olay\u0131 i\u015fler ve muhtemelen ba\u015fka eylemleri ba\u015flat\u0131r.<\/li>\n<\/ol>\n

      Bu s\u00fcre\u00e7, hizmetlerin ger\u00e7ek zamanl\u0131, e\u015fzamans\u0131z ve gev\u015fek \u015fekilde ba\u011flanmas\u0131n\u0131 sa\u011flar ve bu da sistemin yan\u0131t verebilirli\u011fine, \u00f6l\u00e7eklenebilirli\u011fine ve esnekli\u011fine katk\u0131da bulunur.<\/p>\n

      Olay Odakl\u0131 Mimarinin Temel \u00d6zellikleri<\/h2>\n

      EDA birka\u00e7 farkl\u0131 \u00f6zellik sergiler:<\/p>\n

        \n
      1. E\u015fzamans\u0131zl\u0131k:<\/strong> Etkinlik \u00fcreticileri ve t\u00fcketicilerin ayn\u0131 anda etkile\u015fime girmesine ve hatta aktif olmas\u0131na gerek yoktur.<\/li>\n
      2. Ayr\u0131\u015fma:<\/strong> Etkinliklerin \u00fcreticileri ve t\u00fcketicileri do\u011frudan ba\u011flant\u0131l\u0131 de\u011fildir, bu da ba\u011f\u0131ms\u0131zl\u0131\u011f\u0131 ve izolasyonu te\u015fvik eder.<\/li>\n
      3. Ger\u00e7ek Zamanl\u0131 Yan\u0131t:<\/strong> EDA, sistemlerin ger\u00e7ek zamanl\u0131 bilgilere an\u0131nda yan\u0131t vermesini sa\u011flar.<\/li>\n
      4. \u00d6l\u00e7eklenebilirlik:<\/strong> E\u015fzamans\u0131z ve ayr\u0131\u015ft\u0131r\u0131lm\u0131\u015f do\u011fas\u0131 nedeniyle EDA, daha fazla \u00fcreticiye, t\u00fcketiciye veya etkinli\u011fe uyum sa\u011flayacak \u015fekilde kolayca \u00f6l\u00e7eklenebilir.<\/li>\n
      5. Dayan\u0131kl\u0131l\u0131k:<\/strong> Sistemin bir k\u0131sm\u0131ndaki ar\u0131za t\u00fcm sistemi aksatmaz.<\/li>\n<\/ol>\n

        Olay Odakl\u0131 Mimari T\u00fcrleri<\/h2>\n

        Olay Odakl\u0131 Mimarilerin \u00e7e\u015fitli t\u00fcrleri vard\u0131r ve esas olarak olaylar\u0131 ele alma bi\u00e7imleri farkl\u0131l\u0131k g\u00f6sterir:<\/p>\n

          \n
        1. Olay bildirimi:<\/strong> Bir etkinlik \u00fcreticisinin yaln\u0131zca bir olay\u0131n meydana geldi\u011fine dair bir bildirim g\u00f6nderdi\u011fi, ancak a\u00e7\u0131k\u00e7a herhangi bir eylemin gerekli olmad\u0131\u011f\u0131 en temel EDA t\u00fcr\u00fc.<\/li>\n
        2. Olay Tabanl\u0131 Durum Transferi:<\/strong> Olay, y\u00fckte t\u00fcketicilerin kendi durumlar\u0131n\u0131 g\u00fcncellemek i\u00e7in kullanabilece\u011fi bir durum de\u011fi\u015fikli\u011fi ta\u015f\u0131r.<\/li>\n
        3. Etkinlik Kayna\u011f\u0131:<\/strong> Uygulama durumundaki t\u00fcm de\u011fi\u015fiklikler bir dizi olay olarak saklan\u0131r. Bu olaylar daha sonra sorgulanabilir veya olaylar yeniden oynat\u0131larak durum yeniden olu\u015fturulabilir.<\/li>\n
        4. CQRS (Komut Sorgusu Sorumluluk Ayr\u0131m\u0131):<\/strong> Durumu g\u00fcncellemeye y\u00f6nelik modelin, durumu okumaya y\u00f6nelik modelden ayr\u0131ld\u0131\u011f\u0131 daha karma\u015f\u0131k bir EDA. Bu performans\u0131, \u00f6l\u00e7eklenebilirli\u011fi ve g\u00fcvenli\u011fi art\u0131rabilir.<\/li>\n<\/ol>\n\n\n\n\n\n\n\n\n
          EDA T\u00fcrleri<\/th>\nAnahtar \u00f6zellik<\/th>\n<\/tr>\n<\/thead>\n
          Olay bildirimi<\/td>\nBasit bildirim, hi\u00e7bir i\u015flem gerektirmez<\/td>\n<\/tr>\n
          Olay Tabanl\u0131 Durum Transferi<\/td>\nY\u00fckte durum de\u011fi\u015fikli\u011fi<\/td>\n<\/tr>\n
          Etkinlik Kaynak Kullan\u0131m\u0131<\/td>\nSaklanan olay dizisi<\/td>\n<\/tr>\n
          CQRS<\/td>\nDurumu g\u00fcncellemek ve okumak i\u00e7in ayr\u0131 modeller<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n

          Olay Odakl\u0131 Mimarinin Uygulanmas\u0131 ve Y\u00f6netilmesi<\/h2>\n

          EDA'lar genellikle hisse senedi al\u0131m sat\u0131m sistemleri, e-ticaret platformlar\u0131 veya IoT sistemleri gibi ger\u00e7ek zamanl\u0131 verilerin ve duyarl\u0131l\u0131\u011f\u0131n \u00f6nemli oldu\u011fu senaryolarda kullan\u0131l\u0131r. Ancak, e\u015fzamans\u0131z ve da\u011f\u0131t\u0131lm\u0131\u015f do\u011falar\u0131 nedeniyle EDA'lar\u0131 y\u00f6netmek ve hata ay\u0131klamak zor olabilir.<\/p>\n

          \u00d6nemli konular aras\u0131nda olay takibi, veri tutarl\u0131l\u0131\u011f\u0131 ve olay s\u0131ras\u0131 yer al\u0131r. Bu zorluklar, uygun g\u00fcnl\u00fck kayd\u0131, olay zincirlerini izlemeye y\u00f6nelik korelasyon tan\u0131mlay\u0131c\u0131lar\u0131, ba\u011f\u0131ms\u0131zl\u0131\u011f\u0131n sa\u011flanmas\u0131 ve sa\u011flam hata i\u015fleme ve kurtarma prosed\u00fcrlerinin uygulanmas\u0131yla hafifletilebilir.<\/p>\n

          Kar\u015f\u0131la\u015ft\u0131rmalar ve Ayr\u0131mlar<\/h2>\n

          EDA, Hizmet Odakl\u0131 Mimari (SOA) veya Temsili Durum Transferi (REST) gibi daha geleneksel, istek odakl\u0131 mimarilerle tezat olu\u015fturuyor. SOA ve REST tipik olarak e\u015fzamanl\u0131, do\u011frudan ileti\u015fim ve kesin olarak tan\u0131mlanm\u0131\u015f s\u00f6zle\u015fmeler i\u00e7erirken, EDA e\u015fzamans\u0131z, dolayl\u0131 etkile\u015fimi ve esnek olay s\u00f6zle\u015fmelerini vurgular.<\/p>\n\n\n\n\n\n\n\n
          Mimari<\/th>\n\u0130leti\u015fim<\/th>\nEtkile\u015fim<\/th>\nS\u00f6zle\u015fme<\/th>\n<\/tr>\n<\/thead>\n
          SOA<\/td>\nSenkron<\/td>\nDo\u011frudan<\/td>\nSert<\/td>\n<\/tr>\n
          D\u0130NLENMEK<\/td>\nSenkron<\/td>\nDo\u011frudan<\/td>\nSert<\/td>\n<\/tr>\n
          EDA<\/td>\nAsenkron<\/td>\nDolayl\u0131<\/td>\nEsnek<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n

          Olay Odakl\u0131 Mimaride Gelecek Perspektifleri ve Teknolojiler<\/h2>\n

          Mikro hizmetlere ve da\u011f\u0131t\u0131lm\u0131\u015f sistemlere y\u00f6nelik artan e\u011filim, ger\u00e7ek zamanl\u0131 veri i\u015flemenin y\u00fckseli\u015fiyle birle\u015fti\u011finde, EDA'lar\u0131 giderek daha alakal\u0131 hale getiriyor. Sunucusuz bilgi i\u015flem, ger\u00e7ek zamanl\u0131 analiz ve Nesnelerin \u0130nterneti gibi geli\u015fen teknolojilerin, EDA'lar\u0131n benimsenmesini daha da art\u0131rmas\u0131 bekleniyor.<\/p>\n

          Gelecekte, EDA'lar\u0131 daha iyi desteklemek i\u00e7in etkinlik y\u00f6netimi ara\u00e7lar\u0131nda, hata ay\u0131klama ve izleme yeteneklerinde ve geli\u015fmi\u015f mimari modellerde iyile\u015ftirmeler g\u00f6rmeyi bekleyebiliriz.<\/p>\n

          Proxy Sunucular\u0131 ve Olay Odakl\u0131 Mimari<\/h2>\n

          Proxy sunucular\u0131, di\u011fer sunuculardan kaynak arayan istemcilerden gelen istekler i\u00e7in arac\u0131 g\u00f6revi g\u00f6rerek \u00e7e\u015fitli d\u00fczeylerde i\u015flevsellik, g\u00fcvenlik ve gizlilik sa\u011flar. Bir EDA ba\u011flam\u0131nda, proxy sunucular olay trafi\u011fini y\u00f6netmede, y\u00fckleri dengelemede ve ek g\u00fcvenlik \u00f6nlemleri sa\u011flamada rol oynayabilir. \u00d6rne\u011fin, olay odakl\u0131 bir proxy sunucusu, olaylar\u0131 i\u00e7eriklerine, y\u00fcklerine veya di\u011fer fakt\u00f6rlere g\u00f6re dinamik olarak y\u00f6nlendirebilir, b\u00f6ylece sistemin uyarlanabilirli\u011fini ve sa\u011flaml\u0131\u011f\u0131n\u0131 art\u0131rabilir.<\/p>\n

          \u0130lgili Ba\u011flant\u0131lar<\/h2>\n

          Olay Odakl\u0131 Mimari hakk\u0131nda daha fazla bilgi i\u00e7in a\u015fa\u011f\u0131daki kaynaklara bak\u0131n:<\/p>\n

            \n
          1. Microsoft \u2013 Olay odakl\u0131 mimari tarz\u0131<\/a><\/li>\n
          2. IBM \u2013 Olay odakl\u0131 mimari nedir?<\/a><\/li>\n
          3. Martin Fowler \u2013 \u201cOlay Odakl\u0131\u201d ile ne demek istiyorsunuz?<\/a><\/li>\n<\/ol>","protected":false},"featured_media":468337,"menu_order":0,"template":"","meta":{"_acf_changed":false,"content-type":"","inline_featured_image":false,"footnotes":""},"class_list":["post-477131","wiki","type-wiki","status-publish","has-post-thumbnail","hentry"],"acf":{"faq_title":"Frequently Asked Questions about Event-Driven Architecture: A Comprehensive Analysis<\/mark>","faq_items":[{"question":"What is Event-Driven Architecture (EDA)?","answer":"

            Event-Driven Architecture (EDA) is a software design pattern that focuses on the production, detection, consumption, and reaction to events. An event is a significant change in state, usually triggered by a user or system action. The components of an EDA interact by producing and consuming these events, enabling a high degree of decoupling and adaptability.<\/p>"},{"question":"What are the key components of an Event-Driven Architecture?","answer":"

            The key components of an Event-Driven Architecture are Event Producers that create events, an Event Channel that facilitates the distribution of events, Event Consumers that consume the events, and Event Processors that respond to the events.<\/p>"},{"question":"What are the key features of an Event-Driven Architecture?","answer":"

            The key features of an Event-Driven Architecture include asynchronicity, decoupling, real-time responsiveness, scalability, and resilience.<\/p>"},{"question":"What types of Event-Driven Architecture exist?","answer":"

            There are several types of Event-Driven Architectures, including Event Notification, Event-Based State Transfer, Event Sourcing, and Command Query Responsibility Segregation (CQRS).<\/p>"},{"question":"How does Event-Driven Architecture compare to Service Oriented Architecture (SOA) or Representational State Transfer (REST)?","answer":"

            While SOA and REST typically involve synchronous, direct communication and rigidly defined contracts, Event-Driven Architecture emphasizes asynchronous, indirect interaction and flexible event contracts.<\/p>"},{"question":"What are the future perspectives and technologies related to Event-Driven Architecture?","answer":"

            With the growing trend towards microservices and distributed systems and the rise of real-time data processing, the relevance of Event-Driven Architectures is increasing. Technologies such as serverless computing, real-time analytics, and IoT are expected to further drive the adoption of EDAs.<\/p>"},{"question":"How can proxy servers be used or associated with Event-Driven Architecture?","answer":"

            In an EDA context, proxy servers can play a role in managing event traffic, balancing loads, and providing additional security measures. For example, an event-driven proxy server might dynamically route events based on their content, load, or other factors, thereby enhancing the system's adaptability and robustness.<\/p>"}]},"_links":{"self":[{"href":"https:\/\/oneproxy.pro\/tr\/wp-json\/wp\/v2\/wiki\/477131","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/oneproxy.pro\/tr\/wp-json\/wp\/v2\/wiki"}],"about":[{"href":"https:\/\/oneproxy.pro\/tr\/wp-json\/wp\/v2\/types\/wiki"}],"version-history":[{"count":0,"href":"https:\/\/oneproxy.pro\/tr\/wp-json\/wp\/v2\/wiki\/477131\/revisions"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/oneproxy.pro\/tr\/wp-json\/wp\/v2\/media\/468337"}],"wp:attachment":[{"href":"https:\/\/oneproxy.pro\/tr\/wp-json\/wp\/v2\/media?parent=477131"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}