1 files changed, 46 insertions, 0 deletions
diff --git a/lib/layerindexlib/plugin.py b/lib/layerindexlib/plugin.py
new file mode 100644
index 000000000..cadda36c7
--- /dev/null
+++ b/lib/layerindexlib/plugin.py
@@ -0,0 +1,46 @@
+# Copyright (C) 2016-2018 Wind River Systems, Inc.
+#
+# SPDX-License-Identifier: GPL-2.0-only
+#
+# The file contains:
+#   LayerIndex exceptions
+#   Plugin base class
+#   Utility Functions for working on layerindex data
+
+import logging
+
+logger = logging.getLogger('BitBake.layerindexlib.plugin')
+
+class LayerIndexPluginException(Exception):
+    """LayerIndex Generic Exception"""
+    def __init__(self, message):
+         self.msg = message
+         Exception.__init__(self, message)
+
+    def __str__(self):
+         return self.msg
+
+class LayerIndexPluginUrlError(LayerIndexPluginException):
+    """Exception raised when a plugin does not support a given URL type"""
+    def __init__(self, plugin, url):
+        msg = "%s does not support %s:" % (plugin, url)
+        self.plugin = plugin
+        self.url = url
+        LayerIndexPluginException.__init__(self, msg)
+
+class IndexPlugin():
+    def __init__(self):
+        self.type = None
+
+    def init(self, layerindex):
+        self.layerindex = layerindex
+
+    def plugin_type(self):
+        return self.type
+
+    def load_index(self, uri):
+        raise NotImplementedError('load_index is not implemented')
+
+    def store_index(self, uri, index):
+        raise NotImplementedError('store_index is not implemented')
+