parsing - macros not rendering in NVelocity -

i have simple set of velocity templates. when trying merge using nvelocity, macros other templates not executing. template contents follows:

v1.vm

#parse("v2.vm") #foreach( $customer in $customers)     hello $customer.name!     #set($a =$customer.getage())     #age($a) #end 

v2.vm

#macro ( age $a )     #if($a<18)         minor     #else         major     #end #end 

on merge, output is:

hello user1!      #age(33)  hello user2!      #age(13) 

the macro doesn't work because nvelocity (and ancestor velocity) determine if #age directive or macro @ parse time, while #age macro gets discovered @ runtime jumps other template, , passed through text.

to around need make macro available parser before parses v1.vm's #foreach. can putting macro inline in file, assume intend reuse in other templates why you've got separate now.

the other option put macro in macro library, either 1 nvelocity automatically load (vm_global_library.vm) or custom one. if create template named vm_global_library.vm @ root of templates directory nvelocity automatically load first before parsing anything, otherwise create own macro template file , register velocityengine velocimacro.library property. see velocity documentation more detailed explanation of properties.

i've included working example of using custom macro library:

class customer {     public string name { get; set; }     public int age { get; set; }     public int getage() { return age; } } class program {     static void main(string[] args)     {         velocityengine velocityengine = new velocityengine();         extendedproperties extendedproperties = new extendedproperties();         extendedproperties.setproperty(runtimeconstants.file_resource_loader_path, "templates");         extendedproperties.setproperty(runtimeconstants.vm_library, "mymacros.vm");         velocityengine.init(extendedproperties);          velocitycontext context = new velocitycontext();         context.put("customers", new customer[] {             new customer { name = "jack", age = 33 },             new customer { name = "jill", age = 13 }         });          using (stringwriter sw = new stringwriter())         {             bool result = velocityengine.mergetemplate("v1.vm", context, sw);             console.writeline(sw.tostring());         }     } }