2017/04/30

2017/04 Travel

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台北燈會 中山堂光雕秀
2017/04/10

[webMethods] 如何在 Java Service 中，將資料寫入 Integration Server 中的 Cache

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Problem 假設我們已經在 Integration Server 中，在 Public Cache Managers 中建立一個名為 Test 的 Cache Manager，並於 Test 中建立一個名為 hello 的 cache 若我們希望在 Java Ser...
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2017/04/09

[webMethods] 如何設定在 Integration Server 啟動時，執行 Java Service

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Problem 假設我們有一個 OPC Connection 的 Java Service，我們希望這個 Java Service 在啟動 integration server 時，順便啟動此 OPC_Connection Java Service，取得OPC connecti...
2017/04/08

[webMethods] 如何在Designer 中 create 的 Java Service，使用已經寫好的外部的Java Class

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步驟1. 先將所寫好的程式包成一個 jar file 步驟2. 將包好的 jar file 與其相依賴的 jar files 放到 ESB 特定package的目錄中 (即 [integration_server_dir]/packages/[your_pacakge_na...
2017/04/07

[webMethods] 如何安裝 Designer 工具

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Installation Steps 1. 執行 installer，等待出現 installation window 以後，點選 Advanced Options 2. 點選 Images tab、勾選 Use installation image、選取要安裝的 ima...
2017/04/06

[Failsafe] Retry with backoff

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Problem I would like do retry if I fail to connect to database.   My requirement is  retry 5 times at most and sleep 5 second then retr...
2017/04/05

[Failsafe] Retry with Fallback

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Scenario If we cannot get connection, then we will retry 5 times with 2 seconds delay. If we fail to retry with 5 times, then we will paus...
2017/04/04

[Angular2] fail to load data items in ng2-select component

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Problem I am using ng2-select to implement a dropdown list function. But my dropdown list cannot be showed just like the example: Here...
2017/04/03

[UML] How to Draw a Scheduler Service in Sequence Diagram

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Problem Assume I have a HeartBeatService and HeartbeatProducerService. HeartBeatService  will call  HeartbeatProducerService every 5 secon...
2017/04/02

[Failsafe] Simple, sophisticated failure handling

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Scenario We have a Java application to connect to OPC server, if it fail to connect to OPC server it will retry 5 times. How-to You can...