Is it possible to retrieve the value from sever.properties inside dataSource XML?

[xdebugger]

Is it possible to retrieve the value from sever.properties inside dataSource field attribute ? if Yes then how it can be achieved?

[Blama]

Hi xdebugger,

it is, see here.

public static Long getBuildDate() {
        Config.getGlobal();
        String buildDate = (String) Config.getProperty("buildDate");

        SimpleDateFormat parseFormat = new SimpleDateFormat("yyyy-MM-dd HH:mm");
        Date buildDateAsDate = null;
        try {
            buildDateAsDate = parseFormat.parse(buildDate);
...
...

If you need it in a DataSource (in order to use it on the client?), use a DMI for your fetch that returns the needed data as a DSResponse.

Best regards
Blama

[xdebugger]

Hi Blama ,

Thank you for the response.

I have the validator element and expression attribute I need to get from the properties file.
<validator type="regexp" expression="^[a-zA-Z]$" validateOnChange="true">

How can we achieve this?

Regards.

[Blama]

Hi xdebugger,

a lot of work for a single thing like this. Can't you store the regexp in the DB and do a normal serverCustom Java validator that does the validation with asking the DB first?
If not, DynamicDSGenerator is what you need. See also here.

To start it add in web.xml:

<servlet>
        <servlet-name>RegisterDS</servlet-name>
        <servlet-class>com.mycompany.server.RegisterDS</servlet-class>
        <load-on-startup>1</load-on-startup>
    </servlet>

init() is then filled with your DynamicDSGenerator that parses the .ds.xml, and with XPath that manipulates it.
This would be the right way and is a great feature in general (you can basically build DataSources based solely on configuration data, without a .ds.xml file), but it might be a bit overkill if it is really only about the one validator.

Best regards
Blama

[xdebugger]

Hi Blama ,

Thank you for the solution, but this will require lot of changes on my end.
Is there any easy way to do? maybe using VelocitySupport?

[Blama]

Hi xdebugger,

haha, did you see my question? I had the same idea because of this thread.
Otherwise the serverCustom validator is a very easy way to solve your problem with the only downside that is does not run in the browser. But perhaps this is not a problem?
The serverCustom validator would also work with server.properties instead of DB.

Best regards
Blama

[Isomorphic]

Your serverCustom validator can embed Groovy or other code right in the .DS.xml file. See the QuickStart about Server Script support.