Adding a new method to get the Byon host name and node source

scheduling-abstraction-layer/src/main/java/org/activeeon/morphemic/PAGateway.java

@@ -1208,6 +1208,34 @@ public class PAGateway {
         return deployNodeTask;
     }
 
+    private String getBYONHostname(String nsName) {
+        List<String> nodeHostnames = new LinkedList<>();
+        try {
+            nodeHostnames = resourceManagerGateway.getAsyncDeployedNodesInformation(nsName, "hostname");
+        }
+        catch(Exception e) {
+            LOGGER.error(" resourceManagerGateway threw an exception: " + e);
+        }
+        if (nodeHostnames == null) {
+            LOGGER.error("The node Source "+ nsName + " Does not have any nodes");
+            throw new IllegalStateException("Node source is empty no hostname can be retrieved");
+        }
+        else {
+            if (nodeHostnames.size() != 1) {
+                if (nodeHostnames.size() == 0) {
+                    LOGGER.error("The node Source " + nsName + " Does not have any nodes");
+                    throw new IllegalStateException("Node source is empty no hostname can be retrieved");
+                } else {
+                    LOGGER.error("The node Source " + nsName + " has more than one node");
+                    throw new IllegalStateException("Node source has multiple nodes");
+                }
+            }
+        }
+
+        LOGGER.info("The hostname is retrieved successfully: " + nodeHostnames.get(0));
+        return nodeHostnames.get(0);
+    }
+
     private ScriptTask createInfraBYONTask(Task task, Deployment deployment, String taskNameSuffix, String nodeToken) {
         LOGGER.debug("Acquiring node BYON script file: " + getClass().getResource(File.separator + "acquire_node_BYON_script.groovy").toString());
         ScriptTask deployNodeTask = PAFactory.createGroovyScriptTaskFromFile("acquireBYONNode_" + task.getName() + taskNameSuffix,
@@ -1216,11 +1244,9 @@ public class PAGateway {
         deployNodeTask.setPreScript(PAFactory.createSimpleScriptFromFIle("pre_acquire_node_script.groovy", "groovy"));
 
         Map<String, TaskVariable> variablesMap = new HashMap<>();
-        variablesMap.put("NS_name", new TaskVariable("NS_name",
-                                                     deployment.getPaCloud().getNodeSourceNamePrefix() + deployment.getLocationName()));
-        //TODO: To check this. Which ip address is used as host in RM?
-        variablesMap.put("host_name", new TaskVariable("host_name",
-                                                       deployment.getByonNode().getIpAddresses().get(0).getValue()));
+        String NsName = deployment.getPaCloud().getNodeSourceNamePrefix();
+        variablesMap.put("NS_name", new TaskVariable("NS_name", NsName));
+        variablesMap.put("host_name", new TaskVariable("host_name", getBYONHostname(NsName)));
         variablesMap.put("token", new TaskVariable("token", nodeToken));
 
         LOGGER.debug("Variables to be added to the task: " + variablesMap.toString());