SOURCE CODE: Uize.Services.FileSystemWsh

VIEW REFERENCE

/*______________
|       ______  |   U I Z E    J A V A S C R I P T    F R A M E W O R K
|     /      /  |   ---------------------------------------------------
|    /    O /   |    MODULE : Uize.Services.FileSystemWsh Class
|   /    / /    |
|  /    / /  /| |    ONLINE : http://www.uize.com
| /____/ /__/_| | COPYRIGHT : (c)2012 UIZE
|          /___ |   LICENSE : Available under MIT License or GNU General Public License
|_______________|             http://www.uize.com/license.html
*/

/* Module Meta Data
  type: Class
  importance: 6
  codeCompleteness: 0
  testCompleteness: 0
  docCompleteness: 5
*/

/*?
  Introduction
    The =Uize.Services.FileSystemWsh= module defines an adapter for the file system service (=Uize.Services.FileSystem=) for the WSH (Windows Script Host) environment.

    *DEVELOPERS:* `Chris van Rensburg`
*/

Uize.module ({
  name:'Uize.Services.FileSystemWsh',
  superclass:'Uize.Service.Adapter',
  builder:function (_superclass) {
    /*** Class Constructor ***/
      var
        _class = _superclass.subclass (),
        _classPrototype = _class.prototype
      ;

    /*** Public Instance Methods ***/
      _classPrototype.readFile = function (_params,_callback) {
        var
          _fileSystemObject = this._fileSystemObject,
          _path = _params.path,
          _text = ''
        ;
        if (_fileSystemObject.GetFile (_path).Size) {
          var _file = _fileSystemObject.OpenTextFile (_path,1);
          _text = _file.ReadAll ();
          _file.Close ();
        }
        _callback (_text);
      };

      _classPrototype.writeFile = function (_params,_callback) {
        var
          _path = _params.path,
          _fileSystemObject = this._fileSystemObject
        ;

        /*** make sure path exists (if not, create it) ***/
          var _folderPath = _path.substr (0,_path.lastIndexOf ('\\'));
          if (!_fileSystemObject.FolderExists (_folderPath)) {
            var
              _pathSegments = _folderPath.split ('\\'),
              _currentPath = _pathSegments [0] // this should be a drive letter ... this code might break if it isn't
            ;
            for (
              var _pathSegmentNo = 0, _pathSegmentsLength = _pathSegments.length;
              ++_pathSegmentNo < _pathSegmentsLength;
            ) {
              _currentPath += '\\' + _pathSegments [_pathSegmentNo];
              _fileSystemObject.FolderExists (_currentPath) || _fileSystemObject.CreateFolder (_currentPath);
            }
          }

        /*** write text to file and close ***/
          var _file = _fileSystemObject.CreateTextFile (_path);
          _file.Write (_params.contents);
          _file.Close ();

        _callback ();
      };

      _classPrototype.init = function (_params,_callback) {
        this._fileSystemObject = new ActiveXObject ('Scripting.FileSystemObject');
        _callback ();
      };

    return _class;
  }
});