1 files changed, 34 insertions, 0 deletions
diff --git a/src/python-common/ceph/deployment/drive_selection/filter.py b/src/python-common/ceph/deployment/drive_selection/filter.py
new file mode 100644
index 000000000..36cacfaa5
--- /dev/null
+++ b/src/python-common/ceph/deployment/drive_selection/filter.py
@@ -0,0 +1,34 @@
+# -*- coding: utf-8 -*-
+
+import logging
+
+from ceph.deployment.drive_group import DeviceSelection
+
+try:
+    from typing import Generator
+except ImportError:
+    pass
+
+from .matchers import Matcher, SubstringMatcher, AllMatcher, SizeMatcher, EqualityMatcher
+
+logger = logging.getLogger(__name__)
+
+
+class FilterGenerator(object):
+    def __init__(self, device_filter):
+        # type: (DeviceSelection) -> None
+        self.device_filter = device_filter
+
+    def __iter__(self):
+        # type: () -> Generator[Matcher, None, None]
+        if self.device_filter.size:
+            yield SizeMatcher('size', self.device_filter.size)
+        if self.device_filter.model:
+            yield SubstringMatcher('model', self.device_filter.model)
+        if self.device_filter.vendor:
+            yield SubstringMatcher('vendor', self.device_filter.vendor)
+        if self.device_filter.rotational is not None:
+            val = '1' if self.device_filter.rotational else '0'
+            yield EqualityMatcher('rotational', val)
+        if self.device_filter.all:
+            yield AllMatcher('all', str(self.device_filter.all))