Implement job-types endpoint support methods for Spark plugin

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

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

Partial-Implements: blueprint edp-job-types-endpoint
Change-Id: I1cd318da11c997119b192e7396969f89d8f0f216

sahara/plugins/spark/edp_engine.py

@@ -19,10 +19,17 @@ from sahara.service.edp.spark import engine as edp_engine
 
 
 class EdpEngine(edp_engine.SparkJobEngine):
+
+    edp_base_version = "1.0.0"
+
+    @staticmethod
+    def edp_supported(version):
+        return version >= EdpEngine.edp_base_version
+
     def validate_job_execution(self, cluster, job, data):
-        if cluster.hadoop_version < "1.0.0":
+        if not self.edp_supported(cluster.hadoop_version):
             raise ex.InvalidDataException(
-                _('Spark 1.0.0 or higher required to run spark %s jobs')
-                % job.type)
+                _('Spark {base} or higher required to run {type} jobs').format(
+                    base=EdpEngine.edp_base_version, type=job.type))
 
         super(EdpEngine, self).validate_job_execution(cluster, job, data)

sahara/plugins/spark/plugin.py

@@ -489,6 +489,19 @@ class SparkProvider(p.ProvisioningPluginBase):
 
         return None
 
+    def get_edp_job_types(self, versions=[]):
+        res = {}
+        for vers in self.get_versions():
+            if not versions or vers in versions:
+                if edp_engine.EdpEngine.edp_supported(vers):
+                    res[vers] = edp_engine.EdpEngine.get_supported_job_types()
+        return res
+
+    def get_edp_config_hints(self, job_type, version):
+        if edp_engine.EdpEngine.edp_supported(version):
+            return edp_engine.EdpEngine.get_possible_job_config(job_type)
+        return {}
+
     def get_open_ports(self, node_group):
         cluster = node_group.cluster
         ports_map = {

sahara/tests/unit/plugins/spark/test_plugin.py

@@ -50,7 +50,7 @@ class SparkPluginTest(base.SaharaWithDbTestCase):
         with testtools.ExpectedException(
                 ex.InvalidDataException,
                 value_re="Spark 1.0.0 or higher required to run "
-                         "spark Spark jobs\nError ID: .*"):
+                         "Spark jobs\nError ID: .*"):
             edp_engine.validate_job_execution(cluster, job, mock.Mock())
 
     def test_plugin10_edp_engine(self):