node-deadline/lib/utils/PropertyMap.js

Module to interface with Deadline Compute Management System by Thinkbox Software

var PropertyMap = module.exports = function( map ) {
  this.map = {};
  this.revMap = {};
  this.setMap( map );
};

PropertyMap.prototype.setMap = function( map ) {

  var prop;
  this.map = map;
  this.revMap = {};
  for ( prop in this.map ) {
    this.revMap[ this.map[ prop ] ] = prop;
  }

};

PropertyMap.prototype.mapObj = function( obj, dest ) {

  var propStack = [],
      prop;
  if ( "undefined" == typeof dest ) {
    dest = {};
  }
  for ( prop in this.map ) {
    PropertyMap.writeProp( dest, prop, PropertyMap.readProp( obj, this.map[ prop ] ) );
  }
  return dest;
};

PropertyMap.prototype.unmapObj = function( obj, dest ) {

  var propStack = [],
      prop;
  if ( "undefined" == typeof dest ) {
    dest = {};
  }
  for ( prop in this.revMap ) {
    PropertyMap.writeProp( dest, prop, PropertyMap.readProp( obj, this.revMap[ prop ] ) );
  }
  return dest;
};

//takes a list of period-seperated property names
//and drills into the given object, returning the value
PropertyMap.readProp = function( obj, prop ) {

  var i;
  prop = prop.split( "." );
  for ( i in prop ) {
    obj = obj[ prop[ i ] ];
  }
  return obj;

};

//takes a list of period-seperated property names
//and drills into the given object, returning the value
PropertyMap.writeProp = function( obj, prop, val ) {

  var i;
  prop = prop.split( "." );
  for ( i = 0; i < prop.length - 1; i++ ) {
    if ( "undefined" == typeof obj[ prop[ i ] ] ) {
      obj[ prop[ i ] ] = {};
    }
    obj = obj[ prop[ i ] ];
  }
  obj[ prop.pop() ] = val;
  return obj;

};