1 files changed, 110 insertions, 0 deletions
diff --git a/vicn/resource/linux/file.py b/vicn/resource/linux/file.py
new file mode 100644
index 00000000..cddda8ed
--- /dev/null
+++ b/vicn/resource/linux/file.py
@@ -0,0 +1,110 @@
+#!/usr/bin/env python3
+# -*- coding: utf-8 -*-
+#
+# Copyright (c) 2017 Cisco and/or its affiliates.
+#
+# Licensed under the Apache License, Version 2.0 (the "License");
+# you may not use this file except in compliance with the License.
+# You may obtain a copy of the License at:
+#
+#     http://www.apache.org/licenses/LICENSE-2.0
+#
+# Unless required by applicable law or agreed to in writing, software
+# distributed under the License is distributed on an "AS IS" BASIS,
+# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+# See the License for the specific language governing permissions and
+# limitations under the License.
+#
+
+from netmodel.model.type    import String, Bool
+from vicn.core.attribute    import Attribute, Multiplicity
+from vicn.core.exception    import ResourceNotFound
+from vicn.core.resource     import Resource
+from vicn.core.task         import BashTask, inline_task
+from vicn.resource.node     import Node
+
+CREATE_DIR_CMD  = "mkdir -p {dir}"
+CREATE_FILE_CMD = "mkdir -p $(dirname {file.filename}) && touch {file.filename}"
+DELETE_FILE_CMD = "rm -f {file.filename}"
+
+GET_FILE_CMD = 'test -f {file.filename} && readlink -e {file.filename}'
+
+GREP_FILE_CMD   = "cat {file.filename}"
+
+CMD_PRINT_TO_FILE = 'echo -n "{file.content}" > {file.filename}'
+
+class File(Resource):
+    """
+    Resource: File
+    """
+    filename = Attribute(String, description = 'Path to the file', 
+            mandatory = True)
+    node = Attribute(Node, description = 'Node on which the file is created',
+            mandatory = True,
+            multiplicity = Multiplicity.ManyToOne,
+            reverse_name = 'files',
+            reverse_description = 'Files created on the node')
+    overwrite = Attribute(Bool, 
+            description = 'Determines whether an existing file is overwritten',
+            default = False)
+
+    #--------------------------------------------------------------------------
+    # Resource lifecycle
+    #--------------------------------------------------------------------------
+
+    def __get__(self):
+
+        # UGLY
+        @inline_task
+        def not_found():
+            raise ResourceNotFound
+
+        if self.overwrite: 
+            return not_found()
+
+        def is_path (rv):
+            if rv is None or rv.stdout is None or len(rv.stdout) == 0 or \
+                    rv.return_value != 0:
+                raise ResourceNotFound
+            return {} # 'filename': rv.stdout}
+
+        test = BashTask(self.node, GET_FILE_CMD, {"file": self}, parse=is_path)
+        return test
+
+    def __create__(self):
+        ctask = BashTask(self.node, CREATE_FILE_CMD, {"file": self})
+        if self.overwrite:
+            ctask = BashTask(self.node, DELETE_FILE_CMD, {'file': self}) > ctask
+        return ctask
+
+    def __delete__(self):
+        return BashTask(self.node, DELETE_FILE_CMD, { "file" : self})
+
+#------------------------------------------------------------------------------
+
+class TextFile(File):
+    """
+    Resource: TextFile
+
+    A file with text content.
+    """
+
+    content = Attribute(String, default='')
+
+    #--------------------------------------------------------------------------
+    # Resource lifecycle
+    #--------------------------------------------------------------------------
+
+    def __create__(self):
+        return BashTask(self.node, CMD_PRINT_TO_FILE, {'file': self})
+
+    #--------------------------------------------------------------------------
+    # Attributes
+    #--------------------------------------------------------------------------
+
+    def _set_content(self):
+        return self.__create__()
+
+    def _get_content(self):
+        return BashTask(self.node, GREP_FILE_CMD, {'file': self},
+                parse =( lambda x : x.stdout))