Passing Configuration Data
Apache FreeMarker CLI provides multiple ways to pass configuration data used in in templates
- System properties
- Parameters
User-Supplied System Poperties
User-supplied system properties are added to the JVM’s system properties
> freemarker-cli -Dfoo1=foo1 -D foo2=foo2 -t templates/info.ftl
User-Supplied Parameters
User-supplied parameters allow to pass additional information to an Apache FreeMarker template
- -Pname=value to define a key/value pair
- -Pname:group=value to define a map containing key/value pairs, i.e nested map
Pass a simple name/value pair on the command line
> freemarker-cli -t templates/info.ftl -P key=value User Supplied Parameters ------------------------------------------------------------------------------ - key ==> value
By providing a group you can create nested maps
> freemarker-cli -t templates/info.ftl -P foo1:group=bar1 -P foo2:group=bar2
User Supplied Parameters
------------------------------------------------------------------------------
- group ==> { foo1=bar1 foo2=bar2 }
It is also possible to mix and match the two approaches
> freemarker-cli -t templates/info.ftl -P foo1:group=bar1 -P foo2:group=bar2 -P key=value
User Supplied Parameters
------------------------------------------------------------------------------
- key ==> value
- group ==> { foo1=bar1 foo2=bar2 }