[PATCH 3/3] ControllerAPI: adding get_alias method to ControllerAPI

[Jan Tluka]

ControllerAPI now provides get_alias() method to get alias defined in the
recipe XML.

Example:

my_value = ctl.get_alias("my_alias")

The code above gets the value of the alias named "my_alias" previously defined
in <lnstrecipe> namespace, e.g:

<lnstrecipe>
    <define>
        <alias name="my_alias" value="my_value"/>
    </define>
    ...
</lnstrecipe>

Signed-off-by: Jan Tluka <jtluka(a)redhat.com&gt;
---
 lnst/Controller/Task.py | 12 ++++++++++++
 1 file changed, 12 insertions(+)

diff --git a/lnst/Controller/Task.py b/lnst/Controller/Task.py
index b028231..10c9f02 100644
--- a/lnst/Controller/Task.py
+++ b/lnst/Controller/Task.py
@@ -78,6 +78,18 @@ class ControllerAPI(object):
         cmd = {"type": "ctl_wait", "seconds":
int(seconds)}
         return self._ctl._run_command(cmd)
 
+    def get_alias(self, alias):
+        """
+            Get the value of user defined alias.
+
+            :param alias: name of user defined alias
+            :type alias: string
+
+            :return: value of a user defined alias
+            :rtype: string
+        """
+        return self._ctl._get_alias(alias)
+
 class HostAPI(object):
     """ An API class representing a host machine. """
 
-- 
1.8.1.4