[Accelerator 4] Adding real time event notification

financial-services-accelerator/accelerators/fs-is/carbon-home/dbscripts/financial-services/event-notifications/mssql.sql

@@ -21,7 +21,7 @@
 -- Since the database systems does not support adding default unix time to the database columns, the default data
 -- storing is handled within the database querieS.
 
-CREATE TABLE OB_NOTIFICATION (
+CREATE TABLE FS_NOTIFICATION (
     NOTIFICATION_ID varchar(36) NOT NULL,
     CLIENT_ID varchar(255) NOT NULL,
     RESOURCE_ID varchar(255) NOT NULL,
@@ -30,24 +30,24 @@ CREATE TABLE OB_NOTIFICATION (
     PRIMARY KEY (NOTIFICATION_ID)
 );
 
-CREATE TABLE OB_NOTIFICATION_EVENT (
+CREATE TABLE FS_NOTIFICATION_EVENT (
     EVENT_ID int NOT NULL IDENTITY,
     NOTIFICATION_ID varchar(36) NOT NULL,
     EVENT_TYPE varchar(200) NOT NULL,
     EVENT_INFO varchar(1000) NOT NULL,
     PRIMARY KEY (EVENT_ID),
-    CONSTRAINT FK_NotificationEvent FOREIGN KEY (NOTIFICATION_ID) REFERENCES OB_NOTIFICATION(NOTIFICATION_ID)
+    CONSTRAINT FK_NotificationEvent FOREIGN KEY (NOTIFICATION_ID) REFERENCES FS_NOTIFICATION(NOTIFICATION_ID)
 );
 
-CREATE TABLE OB_NOTIFICATION_ERROR (
+CREATE TABLE FS_NOTIFICATION_ERROR (
     NOTIFICATION_ID varchar(36) NOT NULL,
     ERROR_CODE varchar(255) NOT NULL,
     DESCRIPTION varchar(255) NOT NULL,
     PRIMARY KEY (NOTIFICATION_ID),
-    CONSTRAINT FK_NotificationError FOREIGN KEY (NOTIFICATION_ID) REFERENCES OB_NOTIFICATION(NOTIFICATION_ID)
+    CONSTRAINT FK_NotificationError FOREIGN KEY (NOTIFICATION_ID) REFERENCES FS_NOTIFICATION(NOTIFICATION_ID)
 );
 
-CREATE TABLE OB_NOTIFICATION_SUBSCRIPTION (
+CREATE TABLE FS_NOTIFICATION_SUBSCRIPTION (
     SUBSCRIPTION_ID varchar(36) NOT NULL,
     CLIENT_ID varchar(255) NOT NULL,
     REQUEST JSON NOT NULL,
@@ -58,9 +58,9 @@ CREATE TABLE OB_NOTIFICATION_SUBSCRIPTION (
     PRIMARY KEY (SUBSCRIPTION_ID)
 );
 
-CREATE TABLE OB_NOTIFICATION_SUBSCRIBED_EVENTS (
+CREATE TABLE FS_NOTIFICATION_SUBSCRIBED_EVENTS (
     SUBSCRIPTION_ID varchar(36) NOT NULL,
     EVENT_TYPE varchar(255) NOT NULL,
     PRIMARY KEY (SUBSCRIPTION_ID, EVENT_TYPE),
-    CONSTRAINT FK_NotificationSubEvents FOREIGN KEY (SUBSCRIPTION_ID) REFERENCES OB_NOTIFICATION_SUBSCRIPTION(SUBSCRIPTION_ID)
+    CONSTRAINT FK_NotificationSubEvents FOREIGN KEY (SUBSCRIPTION_ID) REFERENCES FS_NOTIFICATION_SUBSCRIPTION(SUBSCRIPTION_ID)
 );

financial-services-accelerator/accelerators/fs-is/carbon-home/dbscripts/financial-services/event-notifications/mysql.sql

@@ -23,7 +23,7 @@
 
 -- For event notifications feature run the following queries against the openbank_openbankingdb--
 
-CREATE TABLE IF NOT EXISTS OB_NOTIFICATION (
+CREATE TABLE IF NOT EXISTS FS_NOTIFICATION (
     NOTIFICATION_ID varchar(36) NOT NULL,
     CLIENT_ID varchar(255) NOT NULL,
     RESOURCE_ID varchar(255) NOT NULL,
@@ -33,26 +33,26 @@ CREATE TABLE IF NOT EXISTS OB_NOTIFICATION (
 )
 ENGINE=InnoDB;
 
-CREATE TABLE IF NOT EXISTS OB_NOTIFICATION_EVENT (
+CREATE TABLE IF NOT EXISTS FS_NOTIFICATION_EVENT (
     EVENT_ID int(11) NOT NULL AUTO_INCREMENT,
     NOTIFICATION_ID varchar(36) NOT NULL,
     EVENT_TYPE varchar(200) NOT NULL,
     EVENT_INFO varchar(1000) NOT NULL,
     PRIMARY KEY (EVENT_ID),
-    CONSTRAINT FK_NotificationEvent FOREIGN KEY (NOTIFICATION_ID) REFERENCES OB_NOTIFICATION(NOTIFICATION_ID)
+    CONSTRAINT FK_NotificationEvent FOREIGN KEY (NOTIFICATION_ID) REFERENCES FS_NOTIFICATION(NOTIFICATION_ID)
 )
 ENGINE=InnoDB;
 
-CREATE TABLE IF NOT EXISTS OB_NOTIFICATION_ERROR (
+CREATE TABLE IF NOT EXISTS FS_NOTIFICATION_ERROR (
     NOTIFICATION_ID varchar(36) NOT NULL,
     ERROR_CODE varchar(255) NOT NULL,
     DESCRIPTION varchar(255) NOT NULL,
     PRIMARY KEY (NOTIFICATION_ID),
-    CONSTRAINT FK_NotificationError FOREIGN KEY (NOTIFICATION_ID) REFERENCES OB_NOTIFICATION(NOTIFICATION_ID)
+    CONSTRAINT FK_NotificationError FOREIGN KEY (NOTIFICATION_ID) REFERENCES FS_NOTIFICATION(NOTIFICATION_ID)
 )
 ENGINE=InnoDB;
 
-CREATE TABLE IF NOT EXISTS OB_NOTIFICATION_SUBSCRIPTION (
+CREATE TABLE IF NOT EXISTS FS_NOTIFICATION_SUBSCRIPTION (
     SUBSCRIPTION_ID varchar(36) NOT NULL,
     CLIENT_ID varchar(255) NOT NULL,
     REQUEST JSON NOT NULL,
@@ -64,10 +64,10 @@ CREATE TABLE IF NOT EXISTS OB_NOTIFICATION_SUBSCRIPTION (
 )
 ENGINE=InnoDB;
 
-CREATE TABLE IF NOT EXISTS OB_NOTIFICATION_SUBSCRIBED_EVENTS (
+CREATE TABLE IF NOT EXISTS FS_NOTIFICATION_SUBSCRIBED_EVENTS (
     SUBSCRIPTION_ID varchar(36) NOT NULL,
     EVENT_TYPE varchar(255) NOT NULL,
     PRIMARY KEY (SUBSCRIPTION_ID, EVENT_TYPE),
-    CONSTRAINT FK_NotificationSubEvents FOREIGN KEY (SUBSCRIPTION_ID) REFERENCES OB_NOTIFICATION_SUBSCRIPTION(SUBSCRIPTION_ID)
+    CONSTRAINT FK_NotificationSubEvents FOREIGN KEY (SUBSCRIPTION_ID) REFERENCES FS_NOTIFICATION_SUBSCRIPTION(SUBSCRIPTION_ID)
 )
 ENGINE=InnoDB;

financial-services-accelerator/accelerators/fs-is/carbon-home/dbscripts/financial-services/event-notifications/oracle.sql

@@ -19,9 +19,9 @@
 -- All the data related to time are stored in unix time stamp and therefore, the data types for the time related data
 -- are represented in BIGINT.
 -- Since the database systems does not support adding default unix time to the database columns, the default data
--- storing is handled within the database querieS.
+-- storing is handled within the database queries.
 
-CREATE TABLE OB_NOTIFICATION (
+CREATE TABLE FS_NOTIFICATION (
     NOTIFICATION_ID varchar2(36) NOT NULL,
     CLIENT_ID varchar2(255) NOT NULL,
     RESOURCE_ID varchar2(255) NOT NULL,
@@ -30,34 +30,34 @@ CREATE TABLE OB_NOTIFICATION (
     PRIMARY KEY (NOTIFICATION_ID)
 );
 
-CREATE TABLE OB_NOTIFICATION_EVENT (
+CREATE TABLE FS_NOTIFICATION_EVENT (
     EVENT_ID number(10) NOT NULL,
     NOTIFICATION_ID varchar2(36) NOT NULL,
     EVENT_TYPE varchar2(200) NOT NULL,
     EVENT_INFO varchar2(1000) NOT NULL,
     PRIMARY KEY (EVENT_ID),
-    CONSTRAINT FK_NotificationEvent FOREIGN KEY (NOTIFICATION_ID) REFERENCES OB_NOTIFICATION(NOTIFICATION_ID)
+    CONSTRAINT FK_NotificationEvent FOREIGN KEY (NOTIFICATION_ID) REFERENCES FS_NOTIFICATION(NOTIFICATION_ID)
 );
 
 -- Generate ID using sequence and trigger
-CREATE SEQUENCE OB_NOTIFICATION_EVENT_seq START WITH 1 INCREMENT BY 1;
+CREATE SEQUENCE FS_NOTIFICATION_EVENT_seq START WITH 1 INCREMENT BY 1;
 
-CREATE OR REPLACE TRIGGER OB_NOTIFICATION_EVENT_seq_tr
- BEFORE INSERT ON OB_NOTIFICATION_EVENT FOR EACH ROW
+CREATE OR REPLACE TRIGGER FS_NOTIFICATION_EVENT_seq_tr
+ BEFORE INSERT ON FS_NOTIFICATION_EVENT FOR EACH ROW
  WHEN (NEW.EVENT_ID IS NULL)
 BEGIN
- SELECT OB_NOTIFICATION_EVENT_seq.NEXTVAL INTO :NEW.EVENT_ID FROM DUAL;
+ SELECT FS_NOTIFICATION_EVENT_seq.NEXTVAL INTO :NEW.EVENT_ID FROM DUAL;
 END;
 
-CREATE TABLE OB_NOTIFICATION_ERROR (
+CREATE TABLE FS_NOTIFICATION_ERROR (
     NOTIFICATION_ID varchar2(36) NOT NULL,
     ERROR_CODE varchar2(255) NOT NULL,
     DESCRIPTION varchar2(255) NOT NULL,
     PRIMARY KEY (NOTIFICATION_ID),
-    CONSTRAINT FK_NotificationError FOREIGN KEY (NOTIFICATION_ID) REFERENCES OB_NOTIFICATION(NOTIFICATION_ID)
+    CONSTRAINT FK_NotificationError FOREIGN KEY (NOTIFICATION_ID) REFERENCES FS_NOTIFICATION(NOTIFICATION_ID)
 )
 
-CREATE TABLE OB_NOTIFICATION_SUBSCRIPTION (
+CREATE TABLE FS_NOTIFICATION_SUBSCRIPTION (
     SUBSCRIPTION_ID varchar(36) NOT NULL,
     CLIENT_ID varchar(255) NOT NULL,
     REQUEST JSON NOT NULL,
@@ -68,9 +68,9 @@ CREATE TABLE OB_NOTIFICATION_SUBSCRIPTION (
     PRIMARY KEY (SUBSCRIPTION_ID)
 );
 
-CREATE TABLE OB_NOTIFICATION_SUBSCRIBED_EVENTS (
+CREATE TABLE FS_NOTIFICATION_SUBSCRIBED_EVENTS (
     SUBSCRIPTION_ID varchar(36) NOT NULL,
     EVENT_TYPE varchar(255) NOT NULL,
     PRIMARY KEY (SUBSCRIPTION_ID, EVENT_TYPE),
-    CONSTRAINT FK_NotificationSubEvents FOREIGN KEY (SUBSCRIPTION_ID) REFERENCES OB_NOTIFICATION_SUBSCRIPTION(SUBSCRIPTION_ID)
+    CONSTRAINT FK_NotificationSubEvents FOREIGN KEY (SUBSCRIPTION_ID) REFERENCES FS_NOTIFICATION_SUBSCRIPTION(SUBSCRIPTION_ID)
 );

financial-services-accelerator/accelerators/fs-is/carbon-home/dbscripts/financial-services/event-notifications/postgresql.sql

@@ -23,7 +23,7 @@
 
 -- For event notifications feature run the following queries against the openbank_openbankingdb--
 
-CREATE TABLE IF NOT EXISTS OB_NOTIFICATION (
+CREATE TABLE IF NOT EXISTS FS_NOTIFICATION (
     NOTIFICATION_ID varchar(36) NOT NULL,
     CLIENT_ID varchar(255) NOT NULL,
     RESOURCE_ID varchar(255) NOT NULL,
@@ -32,23 +32,23 @@ CREATE TABLE IF NOT EXISTS OB_NOTIFICATION (
     PRIMARY KEY (NOTIFICATION_ID)
 );
 
-CREATE TABLE IF NOT EXISTS OB_NOTIFICATION_EVENT (
+CREATE TABLE IF NOT EXISTS FS_NOTIFICATION_EVENT (
     EVENT_ID SERIAL PRIMARY KEY,
     NOTIFICATION_ID varchar(36) NOT NULL,
     EVENT_TYPE varchar(200) NOT NULL,
     EVENT_INFO varchar(1000) NOT NULL,
-    CONSTRAINT FK_NotificationEvent FOREIGN KEY (NOTIFICATION_ID) REFERENCES OB_NOTIFICATION(NOTIFICATION_ID)
+    CONSTRAINT FK_NotificationEvent FOREIGN KEY (NOTIFICATION_ID) REFERENCES FS_NOTIFICATION(NOTIFICATION_ID)
 );
 
-CREATE TABLE IF NOT EXISTS OB_NOTIFICATION_ERROR (
+CREATE TABLE IF NOT EXISTS FS_NOTIFICATION_ERROR (
     NOTIFICATION_ID varchar(36) NOT NULL,
     ERROR_CODE varchar(255) NOT NULL,
     DESCRIPTION varchar(255) NOT NULL,
     PRIMARY KEY (NOTIFICATION_ID),
-    CONSTRAINT FK_NotificationError FOREIGN KEY (NOTIFICATION_ID) REFERENCES OB_NOTIFICATION(NOTIFICATION_ID)
+    CONSTRAINT FK_NotificationError FOREIGN KEY (NOTIFICATION_ID) REFERENCES FS_NOTIFICATION(NOTIFICATION_ID)
 );
 
-CREATE TABLE IF NOT EXISTS OB_NOTIFICATION_SUBSCRIPTION (
+CREATE TABLE IF NOT EXISTS FS_NOTIFICATION_SUBSCRIPTION (
     SUBSCRIPTION_ID varchar(36) NOT NULL,
     CLIENT_ID varchar(255) NOT NULL,
     REQUEST JSON NOT NULL,
@@ -59,9 +59,9 @@ CREATE TABLE IF NOT EXISTS OB_NOTIFICATION_SUBSCRIPTION (
     PRIMARY KEY (SUBSCRIPTION_ID)
 );
 
-CREATE TABLE IF NOT EXISTS OB_NOTIFICATION_SUBSCRIBED_EVENTS (
+CREATE TABLE IF NOT EXISTS FS_NOTIFICATION_SUBSCRIBED_EVENTS (
     SUBSCRIPTION_ID varchar(36) NOT NULL,
     EVENT_TYPE varchar(255) NOT NULL,
     PRIMARY KEY (SUBSCRIPTION_ID, EVENT_TYPE),
-    CONSTRAINT FK_NotificationSubEvents FOREIGN KEY (SUBSCRIPTION_ID) REFERENCES OB_NOTIFICATION_SUBSCRIPTION(SUBSCRIPTION_ID)
+    CONSTRAINT FK_NotificationSubEvents FOREIGN KEY (SUBSCRIPTION_ID) REFERENCES FS_NOTIFICATION_SUBSCRIPTION(SUBSCRIPTION_ID)
 );

financial-services-accelerator/accelerators/fs-is/carbon-home/repository/conf/financial-services.xml

@@ -82,4 +82,31 @@
         <MaxConnections>2000</MaxConnections>
         <MaxConnectionsPerRoute>1500</MaxConnectionsPerRoute>
     </HTTPConnectionPool>
+    <EventNotifications>
+        <NotificationGeneration>
+            <NotificationGenerator>org.wso2.financial.services.accelerator.event.notifications.service.DefaultEventNotificationGenerator</NotificationGenerator>
+            <TokenIssuer>www.wso2.com</TokenIssuer>
+            <NumberOfSetsToReturn>5</NumberOfSetsToReturn>
+        </NotificationGeneration>
+        <EventCreationHandler>org.wso2.financial.services.accelerator.event.notifications.service.handler.DefaultEventCreationServiceHandler</EventCreationHandler>
+        <EventPollingHandler>org.wso2.financial.services.accelerator.event.notifications.service.handler.DefaultEventPollingServiceHandler</EventPollingHandler>
+        <EventSubscriptionHandler>org.wso2.financial.services.accelerator.event.notifications.service.handler.DefaultEventSubscriptionServiceHandler</EventSubscriptionHandler>
+        <PollingResponseParams>
+            <IsSubClaimAvailable>true</IsSubClaimAvailable>
+            <IsTxnClaimAvailable>{{financial_services.event.notifications.set_txn_claim_included}}</IsTxnClaimAvailable>
+            <IsTxnClaimAvailable>true</IsTxnClaimAvailable>
+            <IsToeClaimAvailable>true</IsToeClaimAvailable>
+        </PollingResponseParams>
+        <Realtime>
+            <Enable>false</Enable>
+            <PeriodicCronExpression>0 0/1 0 ? * * *</PeriodicCronExpression>
+            <TimeoutInSeconds>60</TimeoutInSeconds>
+            <MaxRetries>5</MaxRetries>
+            <InitialBackoffTimeInSeconds>60</InitialBackoffTimeInSeconds>
+            <BackoffFunction>EX</BackoffFunction>
+            <CircuitBreakerOpenTimeoutInSeconds>600</CircuitBreakerOpenTimeoutInSeconds>
+            <EventNotificationThreadPoolSize>20</EventNotificationThreadPoolSize>
+            <RequestGenerator>org.wso2.financial.services.accelerator.event.notifications.service.realtime.service.DefaultRealtimeEventNotificationRequestGenerator</RequestGenerator>
+        </Realtime>
+    </EventNotifications>
 </Server>

financial-services-accelerator/accelerators/fs-is/carbon-home/repository/resources/conf/templates/repository/conf/financial-services.xml.j2

@@ -210,4 +210,102 @@
          <MaxConnectionsPerRoute>1000</MaxConnectionsPerRoute>
         {% endif %}
     </HTTPConnectionPool>
+    <EventNotifications>
+        <NotificationGeneration>
+            {% if financial_services.event.notifications.event_notification_generator is defined %}
+            <NotificationGenerator>{{financial_services.event.notifications.event_notification_generator}}</NotificationGenerator>
+            {% else %}
+            <NotificationGenerator>org.wso2.financial.services.accelerator.event.notifications.service.DefaultEventNotificationGenerator</NotificationGenerator>
+            {% endif %}
+            {% if financial_services.event.notifications.token_issuer is defined %}
+            <TokenIssuer>{{financial_services.event.notifications.token_issuer}}</TokenIssuer>
+            {% else %}
+            <TokenIssuer>www.wso2.com</TokenIssuer>
+            {% endif %}
+            {% if financial_services.event.notifications.number_of_sets_to_return %}
+            <NumberOfSetsToReturn>{{financial_services.event.notifications.number_of_sets_to_return}}</NumberOfSetsToReturn>
+            {% else %}
+             <NumberOfSetsToReturn>5</NumberOfSetsToReturn>
+            {% endif %}
+        </NotificationGeneration>
+        {% if financial_services.event.notifications.event_creation_handler is defined %}
+        <EventCreationHandler>{{financial_services.event.notifications.event_creation_handler}}</EventCreationHandler>
+        {% else %}
+        <EventCreationHandler>org.wso2.financial.services.accelerator.event.notifications.service.handler.DefaultEventCreationServiceHandler</EventCreationHandler>
+        {% endif %}
+        {% if financial_services.event.notifications.event_polling_handler is defined %}
+        <EventPollingHandler>{{financial_services.event.notifications.event_polling_handler}}</EventPollingHandler>
+        {% else %}
+        <EventPollingHandler>org.wso2.financial.services.accelerator.event.notifications.service.handler.DefaultEventPollingServiceHandler</EventPollingHandler>
+        {% endif %}
+        {% if financial_services.event.notifications.event_subscription_handler is defined %}
+        <EventSubscriptionHandler>{{financial_services.event.notifications.event_subscription_handler}}</EventSubscriptionHandler>
+        {% else %}
+        <EventSubscriptionHandler>org.wso2.financial.services.accelerator.event.notifications.service.handler.DefaultEventSubscriptionServiceHandler</EventSubscriptionHandler>
+        {% endif %}
+        <PollingResponseParams>
+            {% if financial_services.event.notifications.set_sub_claim_included is defined%}
+            <IsSubClaimAvailable>{{financial_services.event.notifications.set_sub_claim_included}}</IsSubClaimAvailable>
+            {% else %}
+            <IsSubClaimAvailable>true</IsSubClaimAvailable>
+            {% endif %}
+            {% if financial_services.event.notifications.set_txn_claim_included is defined %}
+            <IsTxnClaimAvailable>{{financial_services.event.notifications.set_txn_claim_included}}</IsTxnClaimAvailable>
+            {% else %}
+            <IsTxnClaimAvailable>true</IsTxnClaimAvailable>
+            {% endif %}
+            {% if financial_services.event.notifications.set_toe_cliam_included is defined %}
+            <IsToeClaimAvailable>{{financial_services.event.notifications.set_toe_cliam_included}}</IsToeClaimAvailable>
+            {% else %}
+            <IsToeClaimAvailable>true</IsToeClaimAvailable>
+            {% endif %}
+        </PollingResponseParams>
+        <Realtime>
+            {% if financial_services.event.notifications.realtime.enable is defined %}
+            <Enable>{{financial_services.event.notifications.realtime.enable}}</Enable>
+            {% else %}
+            <Enable>false</Enable>
+            {% endif %}
+            {% if financial_services.event.notifications.realtime.periodic_cron_expression is defined %}
+            <PeriodicCronExpression>{{financial_services.event.notifications.realtime.periodic_cron_expression}}</PeriodicCronExpression>
+            {% else %}
+            <PeriodicCronExpression>0 0/1 0 ? * * *</PeriodicCronExpression>
+            {% endif %}
+            {% if financial_services.event.notifications.realtime.request_timeout is defined %}
+            <TimeoutInSeconds>{{financial_services.event.notifications.realtime.request_timeout}}</TimeoutInSeconds>
+            {% else %}
+            <TimeoutInSeconds>60</TimeoutInSeconds>
+            {% endif %}
+            {% if financial_services.event.notifications.realtime.maximum_retry_count is defined %}
+            <MaxRetries>{{financial_services.event.notifications.realtime.maximum_retry_count}}</MaxRetries>
+            {% else %}
+            <MaxRetries>5</MaxRetries>
+            {% endif %}
+            {% if financial_services.event.notifications.realtime.initial_retry_waiting_time is defined %}
+            <InitialBackoffTimeInSeconds>{{financial_services.event.notifications.realtime.initial_retry_waiting_time}}</InitialBackoffTimeInSeconds>
+            {% else %}
+            <InitialBackoffTimeInSeconds>60</InitialBackoffTimeInSeconds>
+            {% endif %}
+            {% if financial_services.event.notifications.realtime.retry_function is defined %}
+            <BackoffFunction>{{financial_services.event.notifications.realtime.retry_function}}</BackoffFunction>
+            {% else %}
+            <BackoffFunction>EX</BackoffFunction>
+            {% endif %}
+            {% if financial_services.event.notifications.realtime.circuit_breaker_open_timeout is defined %}
+            <CircuitBreakerOpenTimeoutInSeconds>{{financial_services.event.notifications.realtime.circuit_breaker_open_timeout}}</CircuitBreakerOpenTimeoutInSeconds>
+            {% else %}
+            <CircuitBreakerOpenTimeoutInSeconds>600</CircuitBreakerOpenTimeoutInSeconds>
+            {% endif %}
+            {% if financial_services.event.notifications.realtime.thread_pool_size is defined %}
+            <EventNotificationThreadPoolSize>{{financial_services.event.notifications.realtime.thread_pool_size}}</EventNotificationThreadPoolSize>
+            {% else %}
+            <EventNotificationThreadPoolSize>20</EventNotificationThreadPoolSize>
+            {% endif %}
+            {% if financial_services.event.notifications.realtime.event_notification_request_generator is defined %}
+            <RequestGenerator>{{financial_services.event.notifications.realtime.event_notification_request_generator}}</RequestGenerator>
+            {% else %}
+            <RequestGenerator>org.wso2.financial.services.accelerator.event.notifications.service.realtime.service.DefaultRealtimeEventNotificationRequestGenerator</RequestGenerator>
+            {% endif %}
+        </RealtimeEventNotification>
+    </EventNotifications>
 </Server>