REST Invocation Activity

[jinyoung]

• Action: Invocation of a REST path and obtaining values from the JSON output.

• Input : Template JSON which could be filled out with process variables or system variables (such as instance.id, or SpEL). http://jtwig.org/documentation/reference/tags/control-flow can be used as template engine, SpEL can be used as evaluator. I didn't verified the two can be merged.

• Output: process variable changes from output JSON Path.

[jinyoung]

Selection of template engine:

https://mustache.github.io/#demo is better?

cons: Same template can used in javascript, we can provide bebugging / testing functionality at the process designer. pros: it looks slightly hard to bridging the data evaluation with SpEL

[jinyoung]

이게 젤 간단해 대신 collection 은 안돼:

https://docs.spring.io/spring/docs/3.0.5.RELEASE/reference/expressions.html#d0e12128

[jinyoung]

https://dzone.com/articles/template-engines-review-after-deprecated-velocity

[jinyoung]

Theamleaf 를 그냥 template engine 으로만쓰면 가장 좋음:

http://www.thymeleaf.org/doc/articles/springmail.html

장점: SpEL 그대로 사용, 추가적으로 할게 없음. 단점: 성능? http://forum.thymeleaf.org/Thymleaf-amp-Performance-with-Spring-td4025285.html

[jinyoung]

https://github.com/TheOpenCloudEngine/uEngine5-base/commit/a6a0339af75b5e2013a16f28fc7831d04d7ad529

[jinyoung]

[jinyoung]