Updated task schedule service to fix EMM-1145, EMM-1100

components/policy-mgt/org.wso2.carbon.policy.mgt.core/src/main/java/org/wso2/carbon/policy/mgt/core/task/TaskScheduleService.java

@@ -28,4 +28,6 @@ public interface TaskScheduleService {
     void stopTask() throws PolicyMonitoringTaskException;
 
     void updateTask(int monitoringFrequency) throws PolicyMonitoringTaskException;
+
+    boolean isTaskScheduled() throws PolicyMonitoringTaskException;
 }

components/policy-mgt/org.wso2.carbon.policy.mgt.core/src/main/java/org/wso2/carbon/policy/mgt/core/task/TaskScheduleServiceImpl.java

@@ -49,15 +49,13 @@ public class TaskScheduleServiceImpl implements TaskScheduleService {
 
     @Override
     public void startTask(int monitoringFrequency) throws PolicyMonitoringTaskException {
-
-
+        int tenantId = getTenantId();
         if (policyConfiguration.getMonitoringEnable()) {
 
             if (monitoringFrequency <= 0) {
                 throw new PolicyMonitoringTaskException("Time interval cannot be 0 or less than 0.");
             }
             try {
-                int tenantId = PrivilegedCarbonContext.getThreadLocalCarbonContext().getTenantId();
                 TaskService taskService = PolicyManagementDataHolder.getInstance().getTaskService();
                 taskService.registerTaskType(PolicyManagementConstants.MONITORING_TASK_TYPE);
 
@@ -91,8 +89,7 @@ public class TaskScheduleServiceImpl implements TaskScheduleService {
 
             } catch (TaskException e) {
                 throw new PolicyMonitoringTaskException("Error occurred while creating the task for tenant " +
-                        PrivilegedCarbonContext.
-                                getThreadLocalCarbonContext().getTenantId(), e);
+                                                        tenantId, e);
             }
         } else {
             throw new PolicyMonitoringTaskException("Policy monitoring is not enabled in the cdm-config.xml.");
@@ -102,23 +99,22 @@ public class TaskScheduleServiceImpl implements TaskScheduleService {
 
     @Override
     public void stopTask() throws PolicyMonitoringTaskException {
+        int tenantId = getTenantId();
         try {
-            int tenantId = PrivilegedCarbonContext.getThreadLocalCarbonContext().getTenantId();
             String taskName = PolicyManagementConstants.MONITORING_TASK_NAME + "_" + String.valueOf(tenantId);
             TaskService taskService = PolicyManagementDataHolder.getInstance().getTaskService();
             TaskManager taskManager = taskService.getTaskManager(PolicyManagementConstants.MONITORING_TASK_TYPE);
             taskManager.deleteTask(taskName);
         } catch (TaskException e) {
             throw new PolicyMonitoringTaskException("Error occurred while deleting the task for tenant " +
-                    PrivilegedCarbonContext.
-                            getThreadLocalCarbonContext().getTenantId(), e);
+                                                    tenantId, e);
         }
     }
 
     @Override
     public void updateTask(int monitoringFrequency) throws PolicyMonitoringTaskException {
+        int tenantId = getTenantId();
         try {
-            int tenantId = PrivilegedCarbonContext.getThreadLocalCarbonContext().getTenantId();
             String taskName = PolicyManagementConstants.MONITORING_TASK_NAME + "_" + String.valueOf(tenantId);
             TaskService taskService = PolicyManagementDataHolder.getInstance().getTaskService();
             TaskManager taskManager = taskService.getTaskManager(PolicyManagementConstants.MONITORING_TASK_TYPE);
@@ -144,10 +140,27 @@ public class TaskScheduleServiceImpl implements TaskScheduleService {
             }
 
         } catch (TaskException e) {
-            throw new PolicyMonitoringTaskException("Error occurred while updating the task for tenant " +
-                    PrivilegedCarbonContext.
-                            getThreadLocalCarbonContext().getTenantId(), e);
+            throw new PolicyMonitoringTaskException("Error occurred while updating the task for tenant " + tenantId, e);
+        }
+
+    }
+
+    @Override
+    public boolean isTaskScheduled() throws PolicyMonitoringTaskException {
+        int tenantId = getTenantId();
+        String taskName = PolicyManagementConstants.MONITORING_TASK_NAME + "_" + String.valueOf(tenantId);
+        TaskService taskService = PolicyManagementDataHolder.getInstance().getTaskService();
+        TaskManager taskManager;
+        try {
+            taskManager = taskService.getTaskManager(PolicyManagementConstants.MONITORING_TASK_TYPE);
+            return taskManager.isTaskScheduled(taskName);
+        } catch (TaskException e) {
+            throw new PolicyMonitoringTaskException("Error occurred while checking task for tenant " +
+                                                    tenantId, e);
         }
+    }
 
+    private int getTenantId() {
+        return PrivilegedCarbonContext.getThreadLocalCarbonContext().getTenantId();
     }
 }