Hi Mark,

What type of application are you developing?  For web applications, which
I'd imagine are the most common cases, using a JNDI DataSource is the way
to go.  Your container (Tomcat, Jetty, etc) will provide database
connection services to Cayenne through a JNDI lookup.  If you aren't
developing a web application, we can guide you toward a different solution.

Thanks,

mrg


On Sat, Dec 16, 2017 at 8:23 PM, Mark Hull <mark.mkg...@gmail.com> wrote:

> I apologize if this question has been asked and answered before but: What
> is the best-practices solution to redact the database user name and
> password from an XML file created and used by Cayenne Modeler? The
> ServerRuntime build statement is simply:
>
> cayenneRuntime = ServerRuntime.builder()
> .addConfig("com/hulles/a1icia/cayenne/cayenne-a1icia.xml")
>             .build();
>
> It works just fine as long as the db user name and password are in the XML
> file, but I don't believe in leaving clear-text artifacts like that laying
> around in the code, so I want to add the user and password data at runtime
> from a Java method (not from an external file or an 'executable', whatever
> that means in the content of PasswordEncoding). Adding .user("xyz") and
> .password("zyx") to the build statement don't work, presumably because the
> DataNode is not the default and those statements just set their respective
> fields for the default DataNode.
>
> If I have to, I can create either a Module to change those properties
> somehow at runtime (though the documentation for doing so is, to be kind,
> sparse), somehow implement the PasswordEncoding (even less documentation,
> because I don't know where it's used), or just edit the XML at runtime
> (horrible choice but looking like the best of a bad lot at this point).
>
> All this seems like a lot of effort when I imagine this need must crop up
> fairly often among Cayenne users (it should, for security reasons IMO). Is
> there a simple standard way to do what I want? Or at least a standard way?
> I don't want to invent a new wheel here. I feel like I'm missing something
> obvious that everyone else knows about and that I just missed. Oh, by the
> way, whatever the solution is should still allow Cayenne Modeler to
> function normally.
>
> I promise I searched for the answer everywhere I could think of.
> StackOverflow had a couple answers that used deprecated methods and didn't
> work when I tried them.
>
> Thanks in advance for any help. I hope there's a really simple answer so I
> feel stupid but don't have to spend any more time on this than I have
> already. :)
>
> - Mark Hull
>
> /People say nothing is impossible, but I do nothing every day. - A. A.
> Milne/
>

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