Add `simple` example for the client library

The patch adds a new package containing a simple example of how the
client library is supposed to be used.

It shows the usage of the high-level API.

Change-Id: I6a31f4ac9bf0be5c82d71681abb0cac8b67d1d6b

examples/simple.py

@@ -0,0 +1,39 @@
+# Copyright 2013 Red Hat, 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.
+
+# NOTE(flaper87): Client should be moved to
+# an upper package. It's version agnostic.
+from marconiclient.queues.v1 import client
+
+URL = 'http://localhost:8888/v1'
+
+
+def create_post_delete(queue_name, messages):
+    """Creates a queue, posts messages to it
+    and finally deletes it.
+
+    :params queue_name: The name of the queue
+    :type queue_name: `six.text_type`
+    :params messages: Messages to post.
+    :type messages: list
+    """
+    cli = client.Client(URL)
+    queue = cli.queue(queue_name)
+    queue.post(messages)
+    queue.delete()
+
+if __name__ == '__main__':
+    messages = [{'body': {'id': idx}, 'ttl': 60}
+                for idx in range(20)]
+    create_post_delete('my_queue', messages)