臺灣博碩士論文加值系統

業務過程執行語言 (BPEL) 可以用來表達業務邏輯 (Business Logic) 並可以透過 BPEL Engine 來執行。然而，存在兩個問題：一是人工手動撰寫符合 WS-BPEL 2.0 規格的 BPEL 文件耗時又耗力，二是在 BPEL Engine 上執行 BPEL 文件有一定的限制且較少彈性。
本次研究致力於利用以下步驟，以自動化方式產生網路應用程式的程式碼：(一) 根據 UI components 及 service components, 產生對應網路應用程式的 BPEL processes, (二) 開發一個 BPEL Designer 來設計與修訂 BPEL processes 使其更加符合需求描述的業務邏輯 (Business Logic), 並作為綁定 服務之間依賴關係的基礎，(三) 根據產生的 BPEL processes 與服務之間依賴關係，產生對應網路應用程式的 Java Spring Boot 程式碼。

Business Process Execution Language (BPEL) can be used to represent the Business Logic documents and then be executed through the BPEL engine. However, there are two problems: one is that writing manually BPEL documents complied with WS-BPEL 2.0 specification is tedious and labor-intensive, and the other is that executing BPEL documents on a BPEL engine is limited and inflexible.
This research work aims to generate Web applications source code in an automatic manner employing the following steps: 1. Generate Web applications BPEL processes based on UI components and service components, 2. Develop a BPEL Designer to create and edit BPEL processes to better meet the requirements of Business logic, and to serve as a basis for the dependency of bonded services, and 3. With the BPEL processes generated and the dependency of bonded services, generate the corresponding Java Spring Boot source code of the target Web applications.

誌謝 i
摘要 ii
Abstracts iii
List of Figures vii
List of Tables xi
Chapter 1 Introduction 1
Chapter 2 Related Work 3
2.1 BPEL Engine............................... 3
2.2 BPEL Designer .............................. 4
Chapter 3 BPEL Document Generation 5
3.1 Navigation BPEL Processes ....................... 5
3.2 System Architecture - Description Languages BPEL Document Generator ................................... 6
3.3 Description Languages Analysis ..................... 7
3.3.1 PDL (Page UI Components Description Language) . . . . . . 8
3.3.2 NDL (Navigation Description Language) . . . . . . . . . . . . 9
3.4 Parser ................................... 10
3.5 Compose BPEL and WSDL ....................... 11
Chapter 4 BPEL Designer 17
4.1 System Architecture ........................... 17
4.2 Component ................................ 19
4.3 Model ................................... 20
4.4 Service................................... 21
4.4.1 Three Strategies for Inserting An Activity . . . . . . . . . . . 21
4.4.2 Undo/Redo with Shallow Memento Pattern . . . . . . . . . . 22
4.5 Embedded in UI Design Client...................... 23
Chapter 5 Gen App Server Engine 31
5.1 Prototype ................................. 31
5.2 System Architecture ........................... 33
5.3 Description Language Analysis...................... 33
5.4 Service List BPEL Analysis ....................... 34
5.5 Download Repacked Service Components JAR . . . . . . . . . . . . . 34
5.6 Interpreters for SUMDL and SBPEL .................. 35
5.7 Transform Code Using JavaPoet..................... 36
Chapter 6 Scenario Snapshots 44
6.1 Description Languages BPEL Document Generator . . . . . . . . . . 44
6.2 Gen App Server Engine (with Service List Feature) . . . . . . . . . . 45
Chapter 7 Conclusion 64
Bibliography 66

[1] Eclipse bpel designer project, [online] https://www.eclipse.org/bpel/.
[2] Extensible markup language, [online] https://www.w3.org/XML/.
[3] Gradle, [online] https://gradle.org.
[4] Java spring boot, [online] https://spring.io/projects/spring-boot.
[5] Javapoet, [online] https://github.com/square/javapoet.
[6] Javascript object notation, [online] https://www.json.org/.
[7] Jboss bpel, [online] https://tools.jboss.org/features/bpel.html.
[8] Maven, [online] https://maven.apache.org.
[9] mxgraph, [online] https://github.com/jgraph/mxgraph.
[10] Netbeans, [online] https://netbeans.apache.org.
[11] Okhttp, [online] https://github.com/square/okhttp.
[12] Wapama, [online] https://github.com/samarjit/mywapama.
[13] Ws-bpel 2.0, [online] http://docs.oasis-open.org/wsbpel/2.0/OS/wsbpel-v2.
0-OS.html.
[14] M.-H. Hsieh. Construct and bind user interface components. Master’s thesis, National
Taiwan University, 2021.
[15] H.-Y. Huang. Atomic services generation from java-based open source software. Mas-
ter’s thesis, National Taiwan University, 2019.
[16] C.-Y. Lu. Bpel engine refactoring for web services. Master’s thesis, National Taiwan University, 2019.
[17] J.-J. YU. Construct service components from open source java projects. Master’s thesis, National Taiwan University, 2021.
[18] J.-T. Zeng. Integrate user interface components with themes. Master’s thesis, Na- tional Taiwan University, 2021.