Multiple Instances of Filter with Different Configurations

[Nicholas Smith]

I have a use-case where we need to register two instances of a filter with different configuration options.  I need to have a "redirectUrl" variable be different for a couple different controller methods that the filter is assigned to. Is it possible to pass options into the filter, or to have the different instances read their configurations from different keys in the application.conf?

In the old version of our java app, we'd register the same filter twice in web.xml with independent configs and then reference them as two different filters in the app. 

For instance:

   <filter>

        <filter-name>FilterA</filter-name>

        <filter-class>filters.AuthFilter</filter-class>

        <init-param>

            <param-name>LoginURL</param-name>

            <param-value>/showcert.aspx</param-value>

        </init-param>

        <init-param>

            <param-name>RedirectURL</param-name>

            <param-value>/welcome</param-value>

        </init-param>

    </filter>

    <filter>

        <filter-name>FilterB</filter-name>

        <filter-class>filters.AuthFilter</filter-class>

        <init-param>

            <param-name>LoginURL</param-name>

            <param-value>/showcert.aspx</param-value>

        </init-param>

        <init-param>

            <param-name>RedirectURL</param-name>

            <param-value>/enroll</param-value>

        </init-param>

    </filter>

Any suggestions to achieve the same capabilities with a ninja filter?

[Joe Lauer]

One quick solution would be to extend two unique classes from your parent filter and give each a config prefix string to read from.  Then you'd have two unique classnames to inject or reference in annotations, etc. throughout Ninja.

-Joe

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[Lakhi Calantoc]

I think you can use this also http://www.ninjaframework.org/documentation/basic_concepts/filters.html