Implement job-types endpoint support methods for HDP plugin

This change implements the optional methods in the Plugins SPI
to support the job-types endpoint for the HDP plugin.

Config hints at this point are unchanged. Additional work may be
needed to provide config-hints specific to HDP plugin versions.

Change-Id: I10b155f145c79ec0ee694ac35a4c3fe679345ee3
Partial-Implements: blueprint edp-job-types-endpoint

sahara/plugins/hdp/ambariplugin.py

@@ -165,11 +165,6 @@ class AmbariPlugin(p.ProvisioningPluginBase):
                                         "node_groups": node_groups,
                                         "cluster_configs": cluster_configs})
 
-    def get_edp_engine(self, cluster, job_type):
-        version_handler = (
-            self.version_factory.get_version_handler(cluster.hadoop_version))
-        return version_handler.get_edp_engine(cluster, job_type)
-
     def update_infra(self, cluster):
         pass
 
@@ -333,6 +328,24 @@ class AmbariPlugin(p.ProvisioningPluginBase):
 
         ambari_client.cleanup(ambari_info)
 
+    def get_edp_engine(self, cluster, job_type):
+        version_handler = (
+            self.version_factory.get_version_handler(cluster.hadoop_version))
+        return version_handler.get_edp_engine(cluster, job_type)
+
+    def get_edp_job_types(self, versions=[]):
+        res = {}
+        for vers in self.version_factory.get_versions():
+            if not versions or vers in versions:
+                vh = self.version_factory.get_version_handler(vers)
+                res[vers] = vh.get_edp_job_types()
+        return res
+
+    def get_edp_config_hints(self, job_type, version):
+        version_handler = (
+            self.version_factory.get_version_handler(version))
+        return version_handler.get_edp_config_hints(job_type)
+
     def decommission_nodes(self, cluster, instances):
         LOG.info(_LI('AmbariPlugin: decommission_nodes called for '
                  'HDP version = %s'), cluster.hadoop_version)

sahara/plugins/hdp/versions/abstractversionhandler.py

@@ -62,6 +62,14 @@ class AbstractVersionHandler(object):
     def get_edp_engine(self, cluster, job_type):
         return
 
+    @abc.abstractmethod
+    def get_edp_job_types(self):
+        return []
+
+    @abc.abstractmethod
+    def get_edp_config_hints(self, job_type):
+        return {}
+
     @abc.abstractmethod
     def get_open_ports(self, node_group):
         return []

sahara/plugins/hdp/versions/version_1_3_2/versionhandler.py

@@ -134,6 +134,12 @@ class VersionHandler(avm.AbstractVersionHandler):
             return edp_engine.EdpOozieEngine(cluster)
         return None
 
+    def get_edp_job_types(self):
+        return edp_engine.EdpOozieEngine.get_supported_job_types()
+
+    def get_edp_config_hints(self, job_type):
+        return edp_engine.EdpOozieEngine.get_possible_job_config(job_type)
+
     def get_open_ports(self, node_group):
         ports = [8660]  # for Ganglia
 

sahara/plugins/hdp/versions/version_2_0_6/versionhandler.py

@@ -124,6 +124,12 @@ class VersionHandler(avm.AbstractVersionHandler):
             return edp_engine.EdpOozieEngine(cluster)
         return None
 
+    def get_edp_job_types(self):
+        return edp_engine.EdpOozieEngine.get_supported_job_types()
+
+    def get_edp_config_hints(self, job_type):
+        return edp_engine.EdpOozieEngine.get_possible_job_config(job_type)
+
     def get_open_ports(self, node_group):
         ports = [8660]  # for Ganglia