Determine HTTP/HTTPS protocol at runtime?

[james.perry]

I have a report that references a sub-report via URL.  I need to be able to accomodate changes in how the report is hosted. (i.e. HTTP/HTTPS)

Is there a way to determine the protocol that's being used to request a report?

Perhaps a way to provide a relative path/URI?

[james.perry]

Create a parameter called something like PROTOCOL and drop this expression in it.

$P{JASPER_REPORT}.getProperty("ireport.jasperserver.url" ).split( ":" )[0]

This will give you either HTTP or HTTPS depending on how the user is accessing the platform.

Then alter any hardcoded URLs to include $P{PROTOCOL}.

e.g.  <![CDATA[$P{PROTOCOL}://localhost:8080/blah/blah/blah]]'