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Red Hat JBoss Fuse - RHTE Fuse and Camel 研討會習作

上個禮拜是紅帽的亞州區技術交流大會,在這個大會裡面大家會在Red Hat 的產品做技術的交流。從紅帽的企業Linux 平台,紅帽的雲端OpenStack, PaaS 平台 OpenShift,當然也有我們最愛的紅帽JBoss 中介軟體囉。 在大會的這幾天,有很多很有趣的創意用法,以及很多有趣的題目。很多紅帽的使用者,提出了很多有趣的使用方式,跟他們的經驗談。還滿有趣的,讓人受益非淺。總覺得自己是井底之蛙,看到大家超級有創意的方法,只能說,佩服佩服。

小妹剛好有榮幸講了其中的兩個題目,一個是關於利用AMQP 與 MQTT 間購物流網,這因為之前在部落格上已經寫了很多,就不多贅述。另一個就是個研討會的習作題。

這個習作如果從頭開始大概需要1.5個小時左右,

在這個習作裡,我們要先將資料從H2的資料庫裡面撈出來,放到JBoss Data Grid上,所以可以利用JBoss Data Grid 的高彈性的分散式記憶體網格暫存(Cache),讓使用者可以個快速,更有效率的取得資料。

然後我們要寫一個網頁程式,讓你有個界面可以輸入查詢的內容,然後到我們剛剛建的JDG Cache(快取) 查詢資料。與網頁的查詢是透過WebSoket 這種非同步式的通訊協定來交換資料。WebSocket 建立只要透過Fuse 的route 就可以很快速地建立Endpoint. 然後我們可以在Route上面看看在JBoss Data Grid 裡面是否有查詢到資料。我們可以用內容路由集成模式(哇咧,什麼爛翻譯,簡單來說,就是看內容決定要把資料往哪邊送的一種"系統整合Pattern") 決定要回傳什麼內容回前端頁面。

你可以在這裡把整個習作下載下來: https://github.com/weimeilin79/RHTEWorkShop
注意,文件在doc 檔案夾下.

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