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Merge pull request #224 from Ashi1993/realtime-4
[Accelerator-4] Adding realtime notification implementation
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144 changes: 144 additions & 0 deletions
144
...nancial/services/accelerator/event/notifications/service/RealtimeNotificationService.java
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| @@ -0,0 +1,144 @@ | ||
| /** | ||
| * Copyright (c) 2024, WSO2 LLC. (https://www.wso2.com). | ||
| * <p> | ||
| * WSO2 LLC. licenses this file to you under the Apache License, | ||
| * Version 2.0 (the "License"); you may not use this file except | ||
| * in compliance with the License. | ||
| * You may obtain a copy of the License at | ||
| * <p> | ||
| * http://www.apache.org/licenses/LICENSE-2.0 | ||
| * <p> | ||
| * Unless required by applicable law or agreed to in writing, | ||
| * software distributed under the License is distributed on an | ||
| * "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY | ||
| * KIND, either express or implied. See the License for the | ||
| * specific language governing permissions and limitations | ||
| * under the License. | ||
| */ | ||
|
|
||
| package org.wso2.financial.services.accelerator.event.notifications.service; | ||
|
|
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| import org.apache.commons.logging.Log; | ||
| import org.apache.commons.logging.LogFactory; | ||
| import org.json.JSONException; | ||
| import org.wso2.financial.services.accelerator.common.util.DatabaseUtils; | ||
| import org.wso2.financial.services.accelerator.event.notifications.service.constants.EventNotificationConstants; | ||
| import org.wso2.financial.services.accelerator.event.notifications.service.dao.EventNotificationDAO; | ||
| import org.wso2.financial.services.accelerator.event.notifications.service.exception.FSEventNotificationException; | ||
| import org.wso2.financial.services.accelerator.event.notifications.service.model.Notification; | ||
| import org.wso2.financial.services.accelerator.event.notifications.service.model.NotificationEvent; | ||
| import org.wso2.financial.services.accelerator.event.notifications.service.persistence.EventNotificationStoreInitializer; | ||
|
|
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| import java.sql.Connection; | ||
| import java.util.List; | ||
|
|
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| /** | ||
| * Realtime Notification service class. | ||
| */ | ||
| public class RealtimeNotificationService { | ||
|
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| private static final Log log = LogFactory.getLog(RealtimeNotificationService.class); | ||
|
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| /** | ||
| * Method to retrieve notification by status. | ||
| * | ||
| * @param status Notification status to retrieve | ||
| * @return List of notifications by status | ||
| * @throws FSEventNotificationException Exception when retrieving notifications by status | ||
| */ | ||
| public List<Notification> getNotificationsByStatus(String status) | ||
| throws FSEventNotificationException { | ||
|
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| EventNotificationDAO eventNotificationDAO = EventNotificationStoreInitializer.getEventNotificationDAO(); | ||
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| Connection connection = DatabaseUtils.getDBConnection(); | ||
|
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| try { | ||
| List<Notification> events = eventNotificationDAO. | ||
| getNotificationsByStatus(connection, status); | ||
| if (log.isDebugEnabled()) { | ||
| log.debug(String.format("Event Notifications with %s status retrieved successfully.", | ||
| status.replaceAll("[\r\n]", ""))); | ||
| } | ||
| DatabaseUtils.commitTransaction(connection); | ||
| return events; | ||
| } catch (FSEventNotificationException e) { | ||
| log.error("Error while retrieving event notification.", e); | ||
| DatabaseUtils.rollbackTransaction(connection); | ||
| throw new FSEventNotificationException(EventNotificationConstants.ERROR_STORING_EVENT_SUBSCRIPTION, e); | ||
| } finally { | ||
| log.debug(EventNotificationConstants.DATABASE_CONNECTION_CLOSE_LOG_MSG); | ||
| DatabaseUtils.closeConnection(connection); | ||
| } | ||
| } | ||
|
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| /** | ||
| * Method to retrieve notifications by NotificationID. | ||
| * | ||
| * @param notificationId Notification ID to retrieve | ||
| * @return List of notifications by notification ID | ||
| * @throws FSEventNotificationException Exception when retrieving notifications by notification ID | ||
| */ | ||
| public List<NotificationEvent> getEventsByNotificationID(String notificationId) | ||
| throws FSEventNotificationException { | ||
|
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| EventNotificationDAO eventNotificationDAO = EventNotificationStoreInitializer.getEventNotificationDAO(); | ||
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| Connection connection = DatabaseUtils.getDBConnection(); | ||
|
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| try { | ||
| //store event subscription data in the database | ||
| List<NotificationEvent> notificationEvents = eventNotificationDAO. | ||
| getEventsByNotificationID(connection, notificationId); | ||
| if (log.isDebugEnabled()) { | ||
| log.debug(String.format("Event Notifications with notification id %s retrieved successfully.", | ||
| notificationId.replaceAll("[\r\n]", ""))); | ||
| } | ||
| DatabaseUtils.commitTransaction(connection); | ||
| return notificationEvents; | ||
| } catch (FSEventNotificationException e) { | ||
| log.error("Error while retrieving event notification.", e); | ||
| DatabaseUtils.rollbackTransaction(connection); | ||
| throw new FSEventNotificationException(EventNotificationConstants.ERROR_STORING_EVENT_SUBSCRIPTION, e); | ||
| } finally { | ||
| log.debug(EventNotificationConstants.DATABASE_CONNECTION_CLOSE_LOG_MSG); | ||
| DatabaseUtils.closeConnection(connection); | ||
| } | ||
| } | ||
|
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| /** | ||
| * Method to update the notification status by ID, allowed values are. | ||
| * OPEN,ACK and ERR | ||
| * | ||
| * @param notificationId Notification ID to update | ||
| * @param notificationStatus Notification status to update | ||
| * @throws FSEventNotificationException Exception when updating notification status by ID | ||
| */ | ||
| public void updateNotificationStatusById(String notificationId, | ||
| EventNotificationConstants.EventNotificationStatusEnum notificationStatus) | ||
| throws FSEventNotificationException { | ||
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| Connection connection = DatabaseUtils.getDBConnection(); | ||
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| EventNotificationDAO eventNotificationDAO = EventNotificationStoreInitializer.getEventNotificationDAO(); | ||
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| try { | ||
| //update the stored event notification | ||
| eventNotificationDAO.updateNotificationStatusById(connection, notificationId, | ||
| notificationStatus.toString()); | ||
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| log.debug("Event Notification updated successfully."); | ||
| DatabaseUtils.commitTransaction(connection); | ||
| } catch (JSONException e) { | ||
| log.error("Error while Parsing the stored request Object", e); | ||
| throw new FSEventNotificationException("Error while Parsing the stored request Object", e); | ||
| } catch (FSEventNotificationException e) { | ||
| log.error("Error while updating event notification.", e); | ||
| DatabaseUtils.rollbackTransaction(connection); | ||
| throw new FSEventNotificationException(e.getMessage(), e); | ||
| } finally { | ||
| log.debug(EventNotificationConstants.DATABASE_CONNECTION_CLOSE_LOG_MSG); | ||
| DatabaseUtils.closeConnection(connection); | ||
| } | ||
| } | ||
| } |
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