diff --git a/external_file_location/.location.py.swp b/external_file_location/.location.py.swp
new file mode 100644
index 00000000..5edb09b8
Binary files /dev/null and b/external_file_location/.location.py.swp differ
diff --git a/external_file_location/.task.py.swp b/external_file_location/.task.py.swp
new file mode 100644
index 00000000..5b9a1957
Binary files /dev/null and b/external_file_location/.task.py.swp differ
diff --git a/external_file_location/backend.py b/external_file_location/backend.py
index 7555f125..d01c4793 100755
--- a/external_file_location/backend.py
+++ b/external_file_location/backend.py
@@ -2,33 +2,37 @@
 # -*- coding: utf-8 -*-
 
 
-class AbstractConnection(object):
+#class AbstractConnection(object):
+#
+#    def __init__(self, host, user, pwd, port=None, allow_dir_creation=False):
+#        self.host = host
+#        self.user = user
+#        self.pwd = pwd
+#        self.port = port
+#        self.allow_dir_creation = allow_dir_creation
+#        self.connection = None
+#
+#    def connect(self):
+#        return NotImplemented
+#
+#    def close(self):
+#        return NotImplemented
+#
+#    def get(self, filename, path=None):
+#        return NotImplemented
+#
+#    def put(self, fileobject, filename, path=None):
+#        return NotImplemented
+#
+#    def search(self, filename, path=None):
+#        return NotImplemented
+#
+#    def move(self, filename, oldpath, newpath):
+#        return NotImplemented
+#
+#    def rename(self, oldfilename, newfilename, path=None):
+#        return NotImplemented
 
-    def __init__(self, host, user, pwd, port=None, allow_dir_creation=False):
-        self.host = host
-        self.user = user
-        self.pwd = pwd
-        self.port = port
-        self.allow_dir_creation = allow_dir_creation
-        self.connection = None
+class AbstractTask():
 
-    def connect(self):
-        return NotImplemented
-
-    def close(self):
-        return NotImplemented
-
-    def get(self, filename, path=None):
-        return NotImplemented
-
-    def put(self, fileobject, filename, path=None):
-        return NotImplemented
-
-    def search(self, filename, path=None):
-        return NotImplemented
-
-    def move(self, filename, oldpath, newpath):
-        return NotImplemented
-
-    def rename(self, oldfilename, newfilename, path=None):
-        return NotImplemented
+    
diff --git a/external_file_location/backends/.filestore.py.swo b/external_file_location/backends/.filestore.py.swo
new file mode 100644
index 00000000..65c54ea1
Binary files /dev/null and b/external_file_location/backends/.filestore.py.swo differ
diff --git a/external_file_location/backends/filestore.py b/external_file_location/backends/filestore.py
index febd353b..302fc733 100755
--- a/external_file_location/backends/filestore.py
+++ b/external_file_location/backends/filestore.py
@@ -1,24 +1,26 @@
 #!/usr/bin/env python
 # -*- coding: utf-8 -*-
 
-from ..backend import AbstractConnection
+from ..backend import AbstractTask
 import sys
 import os
 from tempfile import TemporaryFile
 
-class AbtractTask()
 
-    def __init__(self, cr, uid):
-
-
-
-class FileStoreConnection(AbstractTask):
+class FileStore(AbstractTask):
     _key = "filestore"
     _name = "Filestore"
     _synchronize_type = None
 
-    def __init__(self, host, user, pwd, port=None, allow_dir_creation=False):
-        super(FilestoreConnection, self).__init__(host, user, pwd, port, allow_dir_creation)
+    def __init__(self, config):
+        # super(FilestoreConnection, self).__init__(host, user, pwd, port, allow_dir_creation)
+        self.host = config.get('host', '')
+        self.user = config.get('user', '')
+        self.pwd = config.get('pwd', '')
+        self.port = config.get('port', '')
+        self.allow_dir_creation = config.get('allow_dir_creation', '')
+        self.filename = config.get('filename', '')
+        self.path = config.get('path', '')
 
     def connect(self):
         return NotImplemented
@@ -26,41 +28,46 @@ class FileStoreConnection(AbstractTask):
     def close(self):
         return NotImplemented
 
-    def get(self, filename, path=None):
-        if path:
-            filepath = "{}/{}".format(path, filename)
+    def get(self):
+        if self.path:
+            filepath = "{}/{}".format(self.path, self.filename)
         else:
-            filepath = filename
+            filepath = self.filename
         return open(filepath, 'r+b')
 
-    def put(self, fileobject, filename, path=None):
-        if path:
-            filepath = "{}/{}".format(path, filename)
+    def put(self):
+        if self.path:
+            filepath = "{}/{}".format(self.path, self.filename)
         else:
-            filepath = filename
+            filepath = self.filename
         output = open(filepath, 'w+b')
         return True
 
-    def search(self, filename, path=None):
-        if path:
-            filepath = "{}/{}".format(path, filename)
+    def search(self):
+        if self.path:
+            filepath = "{}/{}".format(self.path, self.filename)
         else:
-            filepath = filename
+            filepath = self.filename
         connection_list_result = os.listdir(filepath)
         return [x for x in connection_list_result if filename in x]
 
-    def move(self, filename, oldpath, newpath):
-        os.rename(
-                os.path.join(oldpath, filename),
-                os.path.join(newpath, filename)
-                )
 
-    def rename(self, oldfilename, newfilename, path=None):
-        return NotImplemented
-
-class ImportFileStore(FileStoreConnection):
+class ImportFileStore(FileStore):
     _synchronize_type = "import"
 
 
     def run():
+        self.connect()
+        file = self.get(self.filename)
+        self.close()
+        return file
+
+class ExportFileStore(FileStore):
+    _synchronize_type = "export"
+
+
+    def run():
+        self.connect()
+        self.put(self.filename)
+        self.close()
 
diff --git a/external_file_location/location.py b/external_file_location/location.py
index d82ef52b..ea0a6499 100644
--- a/external_file_location/location.py
+++ b/external_file_location/location.py
@@ -21,11 +21,12 @@
 ###############################################################################
 
 from openerp import models, fields
+from backend import AbstractTask
 
 class Location(models.Model):
     _name = 'ir.location'
     _description = 'Description'
-    
+
     name = fields.Char(string='Name')
     protocol = fields.Selection(selection='_get_protocol')
     address = fields.Char(string='Address')
@@ -35,5 +36,49 @@ class Location(models.Model):
 
 
     def _get_protocol(self):
-        return [('ftp', 'FTP'), ('sftp', 'SFTP'), ('filestore', 'Filestore')]
-                
+        res = []
+        for cls in itersubclasses(AbstractTask):
+            if not cls._synchronize_type:
+                cls_info = (cls._key, cls._name)
+                res.append(cls_info)
+        return res
+
+
+def itersubclasses(cls, _seen=None):
+    """
+    itersubclasses(cls)
+    Generator over all subclasses of a given class, in depth first order.
+    >>> list(itersubclasses(int)) == [bool]
+    True
+    >>> class A(object): pass
+    >>> class B(A): pass
+    >>> class C(A): pass
+    >>> class D(B,C): pass
+    >>> class E(D): pass
+    >>>
+    >>> for cls in itersubclasses(A):
+    ... print(cls.__name__)
+    B
+    D
+    E
+    C
+    >>> # get ALL (new-style) classes currently defined
+    >>> [cls.__name__ for cls in itersubclasses(object)] #doctest: +ELLIPSIS
+    ['type', ...'tuple', ...]
+    """
+    if not isinstance(cls, type):
+        raise TypeError('itersubclasses must be called with '
+               'new-style classes, not %.100r' % cls
+               )
+    if _seen is None:
+        _seen = set()
+    try:
+        subs = cls.__subclasses__()
+    except TypeError: # fails only when cls is type
+        subs = cls.__subclasses__(cls)
+    for sub in subs:
+        if sub not in _seen:
+            _seen.add(sub)
+            yield sub
+            for sub in itersubclasses(sub, _seen):
+                yield sub
diff --git a/external_file_location/task.py b/external_file_location/task.py
index c632ec6c..51500cda 100644
--- a/external_file_location/task.py
+++ b/external_file_location/task.py
@@ -28,21 +28,79 @@ class Task(models.Model):
     _description = 'Description'
     
     name = fields.Char()
-    method = fields.Selection([
-        ('ftp_import', 'FTP import'),
-        ('ftp_export', 'FTP export'),
-        ('sftp_import', 'SFTP import'),
-        ('sftp_export', 'SFTP export'),
-        ('filestore_import', 'Filestore import'),
-        ('filestore_export', 'Filestore export'),
-        ])
+    # method = fields.Selection([
+    #     ('ftp_import', 'FTP import'),
+    #     ('ftp_export', 'FTP export'),
+    #     ('sftp_import', 'SFTP import'),
+    #     ('sftp_export', 'SFTP export'),
+    #     ('filestore_import', 'Filestore import'),
+    #     ('filestore_export', 'Filestore export'),
+    #     ])
+    method = fields.Selection(selection='_get_method')
     filename = fields.Char()
     filepath = fields.Char()
     location_id = fields.Many2one('ir.location', string='Location')
 
+    def _get_method(self):
+        res = []
+        for cls in itersubclasses(AbstractTask):
+            if cls._synchronize_type:
+                cls_info = (cls._key + cls._synchronize_type, cls._name + cls._synchronize_type)
+                res.append(cls_info)
+        return res
+
     def run(self):
         connection_class = ...
 
         method_class = getattr(sys.modules[__name__], self.method)
+        config = {
+                'host': self.location_id.address,
+                'user': self.location_id.login,
+                'pwd': self.location_id.password,
+                'port': self.location_id.port,
+                'allow_dir_creation': False,
+                'filename': self.filename,
+                'path': self.filepath
+                }
         conn = method_class(config)
         conn.run()
+
+
+def itersubclasses(cls, _seen=None):
+    """
+    itersubclasses(cls)
+    Generator over all subclasses of a given class, in depth first order.
+    >>> list(itersubclasses(int)) == [bool]
+    True
+    >>> class A(object): pass
+    >>> class B(A): pass
+    >>> class C(A): pass
+    >>> class D(B,C): pass
+    >>> class E(D): pass
+    >>>
+    >>> for cls in itersubclasses(A):
+    ... print(cls.__name__)
+    B
+    D
+    E
+    C
+    >>> # get ALL (new-style) classes currently defined
+    >>> [cls.__name__ for cls in itersubclasses(object)] #doctest: +ELLIPSIS
+    ['type', ...'tuple', ...]
+    """
+    if not isinstance(cls, type):
+        raise TypeError('itersubclasses must be called with '
+               'new-style classes, not %.100r' % cls
+               )
+    if _seen is None:
+        _seen = set()
+    try:
+        subs = cls.__subclasses__()
+    except TypeError: # fails only when cls is type
+        subs = cls.__subclasses__(cls)
+    for sub in subs:
+        if sub not in _seen:
+            _seen.add(sub)
+            yield sub
+            for sub in itersubclasses(sub, _seen):
+                yield sub