add resource manager signature documentation

Author: ediskandarov

yarn_api_client/resource_manager.py

@@ -12,6 +12,13 @@ class ResourceManager(BaseYarnAPI):
     cluster - status on the cluster, metrics on the cluster,
     scheduler information, information about nodes in the cluster,
     and information about applications on the cluster.
+
+    If `address` argument is `None` client will try to extract `address` and
+    `port` from Hadoop configuration files.
+
+    :param str address: ResourceManager HTTP address
+    :param int port: ResourceManager HTTP port
+    :param int timeout: API connection timeout in seconds
     """
     def __init__(self, address=None, port=8088, timeout=30):
         self.address, self.port, self.timeout = address, port, timeout
@@ -24,6 +31,9 @@ def cluster_information(self):
         """
         The cluster information resource provides overall information about
         the cluster.
+
+        :returns: API response object with JSON data
+        :rtype: :py:class:`yarn_api_client.base.Response`
         """
         path = '/ws/v1/cluster/info'
         return self.request(path)
@@ -33,6 +43,9 @@ def cluster_metrics(self):
         The cluster metrics resource provides some overall metrics about the
         cluster. More detailed metrics should be retrieved from the jmx
         interface.
+
+        :returns: API response object with JSON data
+        :rtype: :py:class:`yarn_api_client.base.Response`
         """
         path = '/ws/v1/cluster/metrics'
         return self.request(path)
@@ -44,6 +57,9 @@ def cluster_scheduler(self):
         Capacity Scheduler. You will get different information depending on
         which scheduler is configured so be sure to look at the type
         information.
+
+        :returns: API response object with JSON data
+        :rtype: :py:class:`yarn_api_client.base.Response`
         """
         path = '/ws/v1/cluster/scheduler'
         return self.request(path)
@@ -55,6 +71,25 @@ def cluster_applications(self, state=None, final_status=None,
         """
         With the Applications API, you can obtain a collection of resources,
         each of which represents an application.
+
+        :param str state: state of the application
+        :param str final_status: the final status of the
+            application - reported by the application itself
+        :param str user: user name
+        :param str queue: queue name
+        :param str limit: total number of app objects to be returned
+        :param str started_time_begin: applications with start time beginning
+            with this time, specified in ms since epoch
+        :param str started_time_end: applications with start time ending with
+            this time, specified in ms since epoch
+        :param str finished_time_begin: applications with finish time
+            beginning with this time, specified in ms since epoch
+        :param str finished_time_end: applications with finish time ending
+            with this time, specified in ms since epoch
+        :returns: API response object with JSON data
+        :rtype: :py:class:`yarn_api_client.base.Response`
+        :raises yarn_api_client.errors.IllegalArgumentError: if `state` or
+            `final_status` incorrect
         """
         path = '/ws/v1/cluster/apps'
 
@@ -92,6 +127,19 @@ def cluster_application_statistics(self, state_list=None,
         ResourceManager context.
 
         This method work in Hadoop > 2.0.0
+
+        :param list state_list: states of the applications, specified as a
+            comma-separated list. If states is not provided, the API will
+            enumerate all application states and return the counts of them.
+        :param list application_type_list: types of the applications,
+            specified as a comma-separated list. If applicationTypes is not
+            provided, the API will count the applications of any application
+            type. In this case, the response shows * to indicate any
+            application type. Note that we only support at most one
+            applicationType temporarily. Otherwise, users will expect
+            an BadRequestException.
+        :returns: API response object with JSON data
+        :rtype: :py:class:`yarn_api_client.base.Response`
         """
         path = '/ws/v1/cluster/appstatistics'
 
@@ -113,6 +161,10 @@ def cluster_application(self, application_id):
         """
         An application resource contains information about a particular
         application that was submitted to a cluster.
+
+        :param str application_id: The application id
+        :returns: API response object with JSON data
+        :rtype: :py:class:`yarn_api_client.base.Response`
         """
         path = '/ws/v1/cluster/apps/{appid}'.format(appid=application_id)
 
@@ -122,6 +174,10 @@ def cluster_application_attempts(self, application_id):
         """
         With the application attempts API, you can obtain a collection of
         resources that represent an application attempt.
+
+        :param str application_id: The application id
+        :returns: API response object with JSON data
+        :rtype: :py:class:`yarn_api_client.base.Response`
         """
         path = '/ws/v1/cluster/apps/{appid}/appattempts'.format(
             appid=application_id)
@@ -132,6 +188,11 @@ def cluster_nodes(self, state=None, healthy=None):
         """
         With the Nodes API, you can obtain a collection of resources, each of
         which represents a node.
+
+        :returns: API response object with JSON data
+        :rtype: :py:class:`yarn_api_client.base.Response`
+        :raises yarn_api_client.errors.IllegalArgumentError: if `healthy`
+            incorrect
         """
         path = '/ws/v1/cluster/nodes'
         # TODO: validate state argument
@@ -152,6 +213,10 @@ def cluster_nodes(self, state=None, healthy=None):
     def cluster_node(self, node_id):
         """
         A node resource contains information about a node in the cluster.
+
+        :param str node_id: The node id
+        :returns: API response object with JSON data
+        :rtype: :py:class:`yarn_api_client.base.Response`
         """
         path = '/ws/v1/cluster/nodes/{nodeid}'.format(nodeid=node_id)