Seed code for hw-detector

[ta/hw-detector.git] / src / hw_detector / hw_types / __init__.py

diff --git a/src/hw_detector/hw_types/__init__.py b/src/hw_detector/hw_types/__init__.py
new file mode 100644 (file)
index 0000000..761f111
--- /dev/null
+++ b/src/hw_detector/hw_types/__init__.py
@@ -0,0 +1,53 @@
+# Copyright 2019 Nokia
+
+# 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.
+
+import os
+import sys
+import inspect
+import hw_detector.hw_type as hwbase_type
+
+def _import_classes(module_name, module_type):
+    classes = []
+    try:
+        __import__(module_name)
+    except ImportError as e:
+        print("Failed import in {0} skipping {1}".format(module_name, e))
+        return None
+    module = sys.modules[module_name]
+    for obj_name in dir(module):
+        # Skip objects that are meant to be private.
+        if obj_name.startswith('_'):
+            continue
+        elif obj_name == module_type.__name__:
+            continue
+        itm = getattr(module, obj_name)
+        if inspect.isclass(itm) and issubclass(itm, module_type):
+            classes.append(itm)
+    return classes
+
+def get_libs(directory, module_type):
+    classes = []
+    if directory not in sys.path:
+            sys.path.append(directory)
+
+    for fname in os.listdir(directory):
+        root, ext = os.path.splitext(fname)
+        if ext != '.py' or root == '__init__':
+            continue
+        module_name = "%s" % (root)
+        for iclass in _import_classes(module_name, module_type):
+            classes.append(iclass())
+    return classes
+
+types = get_libs('%s/hw_types' % os.path.dirname(hwbase_type.__file__), hwbase_type.HWType)