properties for common rdl generation options

[Lee R. Boynton]

The rdl command supports a few options that should be specifiable from the pom file as plugin properties:

--ns namespace Use the specified namespace for code generation. Default is to use the namespace in the schema.
-b path Specify the base path of the URL for server and client generators.

The "--ns com.yahoo.rdl.example" option has the same effect as specifying 'namespace com.yahoo.rdl.example' in the RDL source file, but is preferred, as such a namespace is specific to the java generator (it will never be shared with the Go generator, for example, which has different rules for its package names).

[Joshua Ball]

Yep, I can take a look at this. Right now the command run is

rdl generate -o <targetFolder> (java-model|java-server) <rdlFile>

Rather than duplicating these new options (--ns and -b) in the java, what about just having one plugin property that allows complete control of the commands? The default value would be this:

<configuration>
  <commands>
    <command>%{rdlBin} generate -o %{generatedResourcesDirectory} java-model %{rdlFile}</command>
    <command>%{rdlBin} generate -o %{generatedResourcesDirectory} java-server %{rdlFile}</command>
  </commands>
</configuration>

Substitution would be done by StrSubstitutor, except configured to use % instead of $ as the prefix and escape character, to avoid conflicts with maven properties.

[Lee R. Boynton]

That would work. With the bonus of allowing client generation, too.