maven - 如何在 xquery 中访问环境变量？

Question

我在 xquery 中的程序有一些基于函数运行环境的变量。例如，dev 指向“devserver”，test 指向“testserver”，prod 指向“server”等。

如何在我的 application.xml 文件中进行设置以及如何在我的 .xqy 函数中引用这些？

"workaround" solution 1

use "switch" to determine host:

switch (xdmp:host-name(xdmp:host()))
    case <dev environment as string> return "devserver"
    case <test environment as string> return "testserver"
    .
    .
    .
    default return fn:error(xs:QName("ERROR"), "Unknown host: " || xdmp:host-name(xdmp:host()))

"workaround" solution 2

create an xml file in your project for each host, update your application.xml to place the xml file in a directory depending on the environment name, then refer to the document now built on installation.

application.xml:

<db dbName="!mydata-database">
   <dir name="/config/" permissionsMode="set">
       <uriPrivilege roles="*_uberuser"/>
       <permissions roles="*_uberuser" access="riu"/>
       <load env="DEV" root="/config/DEV/" merge="true" include="*.xml"/>
       <load env="TEST" root="/config/TEST/" merge="true" include="*.xml"/>

documents located in project directory /config//environment.xml

<environment>
   <services>
       <damApi>https://stage.mydam.org</damApi>
       <dimeApi>https://stage.mydime.org/api/Services</dimeApi>
   </services>
</environment>

usage when I need to get the value

fn:doc("/config/environment.xml")/environment/services/damApi/fn:string()

neither solution seems the best to me.

Answer 1

如果您使用ml-gradle来部署您的项目，it can do substitutions in your code 。这意味着您可以使用如下代码设置 XQuery 库:

declare variable $ENV = "%%environmentName%%";

然后您可以在任何需要的地方导入该库。