Initial Chef repository

cookbooks/windows/libraries/wmi_helper.rb

@@ -0,0 +1,32 @@
+#
+# Author:: Adam Edwards (<adamed@chef.io>)
+#
+# Copyright:: 2014, Chef Software, Inc.
+#
+# 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.
+#
+
+if RUBY_PLATFORM =~ /mswin|mingw32|windows/
+  require 'win32ole'
+
+  def execute_wmi_query(wmi_query)
+    wmi = ::WIN32OLE.connect("winmgmts://")
+    result = wmi.ExecQuery(wmi_query)
+    return nil unless result.each.count > 0
+    result
+  end
+
+  def wmi_object_property(wmi_object, wmi_property)
+    wmi_object.send(wmi_property)
+  end
+end