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JBoss BRMS - 製作自動BPM流程

在閱讀這張之前,請先安裝好JBoss BRMS 5.3.x,因為先前寫過,就不再重複。
有需要的朋友,可以到先前安裝的文章, 安裝BRMS 到 EAP 6.x

JBoss BRMS 裡面的流程,是由JBoss 社群裡面的jBPM專案組成的。這一版的jBPM前身是Drools Project 裡面的Drools Flow出來。跟jBPM 3 是完全不同的核心。 好拉,講古就講到這裡。 來看一下 JBoss BRMS 的 jBPM吧。。

首先。先來看看JBoss BRMS 裡面跟jBPM相關的有三大塊,


  • BPM 引擎, 負責建立每個執行的Session, 與呼叫外部任務(包含人工作業),在BRMS 裡面會出現的方式,一, 包在你程式裡面的引擎(jbpm的jar檔),二, BRMS裡面內建提供的Business Central Web 系統。
  • 任務伺服器 Task Server, 負責人工作業的產生,管理Task 的LifeCycle. BRMS裡面的一個WAR檔。需要資料去儲存目前Task的狀態。
  • 流程定義儲存庫,定義的部分在BRMS裡面可以靠,一,JBoss Developer Studio 拉選,二,使用BRMS裡面的 JBoss BRMS 控制台。可以儲存於檔案,或是資料庫。




這次我們先建立最簡單的流程,後面我在陸續,更細部的介紹。先把一個流程跑起來再說。
因為只是個小小的流程,所以這次暫時不會跟Task Server 有聯結。日後會陸續介紹。

首先,登入我們的JBoss BRMS 的控制台,

1. 建立一個Package
首先請登入JBoss BRMS 的 控制台 http://jboss-brms
到左邊的Knowlege Base下,選擇新增Package, 叫做com.demo



2. 建立一個BPMN2.0

於 Create New 的地方選擇 New BPMN2 Porcess, 下個畫面輸入myfirstBP, 記得把Package 選在剛剛建立的那個com.demo上喔。

  

3. 拉一個會說Hello World 跟 Goodbye World 的小流程。

請到左邊的選單中把Start Event拖到中間的空白頁上。

把滑鼠滑倒start node的上面後,會出現一些小圖,選擇空白方筐

滑鼠點選剛剛建立的Task, 設定這個新增的node 是Script node, 名字name 給 Say Hello.


按下Script 新增我們要執行的內容,


也就是,印出Hello World

下一個做法也相同,

Name是 Say Goodbye, 要執行的內容Script 是Goodbye Wolrd


這次不要選擇方筐,請選擇單一實線圈圈的End Task,


這就是我們完成的第一個小流程。

到畫面的左上方,按下Save Change


左邊選單,請選擇com-> demo


這時右邊會出現一個這個Package的清單。選擇上方的Edit Tab後,按下畫面中的 Validate 按鈕,以及Build 按鈕,把電子檔compile出來。








4. 登入JBoss BRMS Business Central

執行第一個jBPM的流程,選擇左邊的Process Overview, 這時就會看到剛剛建立的商業流程。

 
  選擇Process之後按下start -> ok.


  恭喜你,你執行完成了!!去看log就會發現有Hello World, 跟 Goodbye World 無誤。



以上。






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