Example of using apply-macro as generic key/value store - SLAX

macro-test.slax

version 1.0;

ns junos = "http://xml.juniper.net/junos/*/junos";
ns xnm = "http://xml.juniper.net/xnm/1.1/xnm";
ns jcs = "http://xml.juniper.net/junos/commit-scripts/1.0";

import "../import/junos.xsl";

match / {

  <op-script-results> {
    var $key_vals_rtf := { call get_key_value_pairs($macro_name="upgrade"); }

    for-each($key_vals_rtf/pair) {
      <output> "key: " _ key;
      <output> "value: " _ value;
    }
  }
}

/* Returns node set of key value pairs from apply-macros
  Param: name of apply macro to parse
*/
template get_key_value_pairs($macro_name = "")
{
  var $config-rpc = {
      <get-configuration database="committed">;
  }

  var $routing-instance-configuration = jcs:invoke( $config-rpc );
  for-each($routing-instance-configuration/apply-macro[name = $macro_name]/data) {
    <pair> {
      <key>name;
      <value>value;
    }
  }

}

i suppose once I passed on the JNCIS-Devops I'll understand what this really does.
right now I just understand that it is likely really important and could be very useful.

;-)