验证 Maven 原型属性

Question

有没有办法验证提供给 Maven 原型的属性？如果是这样怎么办？

我的 archetype-metadata.xml 文件中有一个自定义的 requiredProperty 。这些值必须匹配某个正则表达式，我想在 archetype:generate 期间验证这一点。

Answer 1

我已经在 maven-archetype 中实现了此功能，并将其作为拉取请求提交：

https://issues.apache.org/jira/browse/ARCHETYPE-487

例子：

  <requiredProperties>
    <requiredProperty key="pluginPackage">
      <validationRegex><![CDATA[^[a-z][a-z0-9_]*(\.[a-z0-9_]+)+[0-9a-z_]$]]></validationRegex>
    </requiredProperty>
    <requiredProperty key="pluginId">
      <validationRegex><![CDATA[^[a-zA-Z0-9-]+$]]></validationRegex>
    </requiredProperty>
    <requiredProperty key="pluginName">
      <validationRegex><![CDATA[^([a-zA-Z_$][a-zA-Z\d_$]*\.)*[a-zA-Z_$][a-zA-Z\d_$]*$]]></validationRegex>
    </requiredProperty>
    <requiredProperty key="pluginProvider">
    </requiredProperty>
    <requiredProperty key="pluginZipFileName">
      <validationRegex><![CDATA[^[^*&%\s]+$]]></validationRegex>
    </requiredProperty>
    <requiredProperty key="pluginVersion">
      <validationRegex><![CDATA[^[0-9]+\.[0-9]+\.[0-9]+$]]></validationRegex>
    </requiredProperty>
  </requiredProperties>

然后您将获得经过验证的输入：

[INFO] Using property: groupId = com.nick
Define value for property 'artifactId': abc
Define value for property 'version' 1.0-SNAPSHOT: : 
[INFO] Using property: package = com.nick
Define value for property 'pluginId' (should match expression '^[a-zA-Z0-9-]+$'): test-plugin525
Define value for property 'pluginName' (should match expression '^([a-zA-Z_$][a-zA-Z\d_$]*\.)*[a-zA-Z_$][a-zA-Z\d_$]*$'): NickTest101
Define value for property 'pluginPackage' (should match expression '^[a-z][a-z0-9_]*(\.[a-z0-9_]+)+[0-9a-z_]$'): com.nicholas.fun
Define value for property 'pluginProvider': Nicholas DiPiazza
Define value for property 'pluginVersion' (should match expression '^[0-9]+\.[0-9]+\.[0-9]+$'): 1.0
Value does not match the expression, please try again: 

注意：它仍然不会用正则表达式验证批量输入。请参阅：https ://issues.apache.org/jira/browse/ARCHETYPE-532