Implement getting Node states via API

client-api/api_lib/pvcapi.py

@@ -52,6 +52,78 @@ def node_list(limit=None):
     pvc_common.stopZKConnection(zk_conn)
     return flask.jsonify(retdata), retcode
 
+def node_daemon_state(node):
+    """
+    Return the daemon state of node NODE.
+    """
+    zk_conn = pvc_common.startZKConnection(config['coordinators'])
+    retflag, retdata = pvc_node.get_list(zk_conn, node, is_fuzzy=False)
+    if retflag:
+        if retdata:
+            retcode = 200
+            retdata = {
+                'name': node,
+                'daemon_state': retdata[0]['daemon_state']
+            }
+        else:
+            retcode = 404
+            retdata = {
+                'message': 'Node not found.'
+            }
+    else:
+        retcode = 400
+
+    pvc_common.stopZKConnection(zk_conn)
+    return flask.jsonify(retdata), retcode
+
+def node_coordinator_state(node):
+    """
+    Return the coordinator state of node NODE.
+    """
+    zk_conn = pvc_common.startZKConnection(config['coordinators'])
+    retflag, retdata = pvc_node.get_list(zk_conn, node, is_fuzzy=False)
+    if retflag:
+        if retdata:
+            retcode = 200
+            retdata = {
+                'name': node,
+                'coordinator_state': retdata[0]['coordinator_state']
+            }
+        else:
+            retcode = 404
+            retdata = {
+                'message': 'Node not found.'
+            }
+    else:
+        retcode = 400
+
+    pvc_common.stopZKConnection(zk_conn)
+    return flask.jsonify(retdata), retcode
+
+def node_domain_state(node):
+    """
+    Return the domain state of node NODE.
+    """
+    zk_conn = pvc_common.startZKConnection(config['coordinators'])
+    retflag, retdata = pvc_node.get_list(zk_conn, node, is_fuzzy=False)
+    if retflag:
+        if retdata:
+            retcode = 200
+            retdata = {
+                'name': node,
+                'domain_state': retdata[0]['domain_state']
+            }
+        else:
+            retcode = 404
+            retdata = {
+                'message': 'Node not found.'
+            }
+    else:
+        retcode = 400
+
+    pvc_common.stopZKConnection(zk_conn)
+    return flask.jsonify(retdata), retcode
+
 def node_secondary(node):
     """
     Take NODE out of primary router mode.

client-api/pvc-api.py

@@ -157,12 +157,17 @@ def api_node_element(node):
     # Same as specifying /node?limit=NODE
     return pvcapi.node_list(node)
 
+@api.route('/api/v1/node/<node>/daemon-state', methods=['GET'])
+@authenticator
+def api_node_daemon_state(node):
+    if flask.request.method == 'GET':
+        return pvcapi.node_daemon_state(node)
 
 @api.route('/api/v1/node/<node>/coordinator-state', methods=['GET', 'POST'])
 @authenticator
 def api_node_coordinator_state(node):
     if flask.request.method == 'GET':
-        return "Test", 200
+        return pvcapi.node_coordinator_state(node)
 
     if flask.request.method == 'POST':
         if not 'coordinator-state' in flask.request.values:
@@ -178,7 +183,7 @@ def api_node_coordinator_state(node):
 @authenticator
 def api_node_domain_state(node):
     if flask.request.method == 'GET':
-        return "Test", 200
+        return pvcapi.node_domain_state(node)
 
     if flask.request.method == 'POST':
         if not 'domain-state' in flask.request.values: