Add get device apps by id service

components/application-mgt/io.entgra.device.mgt.core.application.mgt.common/src/main/java/io/entgra/device/mgt/core/application/mgt/common/services/ApplicationManager.java

@@ -273,6 +273,17 @@ public interface ApplicationManager {
      */
     ApplicationDTO getApplication(int applicationId) throws ApplicationManagementException;
 
+    /**
+     * This method is responsible to provide application data for given deviceId.
+     *
+     * @param  deviceId id of the device
+     * @return {@link ApplicationDTO}
+     * @throws ApplicationManagementException
+     * if an error occurred while getting subscribed app details for relevant device id,
+     */
+    ApplicationList getSubscribedAppsOfDevice(int deviceId)
+            throws ApplicationManagementException;
+
     /**
      * To get the Application for given Id.
      *

components/application-mgt/io.entgra.device.mgt.core.application.mgt.core/src/main/java/io/entgra/device/mgt/core/application/mgt/core/dao/ApplicationDAO.java

@@ -150,6 +150,16 @@ public interface ApplicationDAO {
      */
     ApplicationDTO getApplication(int applicationId, int tenantId) throws ApplicationManagementDAOException;
 
+    /**
+     * To get the application with the given id
+     *
+     * @param deviceId ID of the device which the apps are installed on.
+     * @param tenantId ID of the tenant.
+     * @return the application
+     * @throws ApplicationManagementDAOException ApplicationDTO Management DAO Exception.
+     */
+    List<ApplicationDTO> getSubscribedAppsOfDevice(int deviceId, int tenantId) throws ApplicationManagementDAOException;
+
     /**
      * To get the application with the given uuid
      *

components/application-mgt/io.entgra.device.mgt.core.application.mgt.core/src/main/java/io/entgra/device/mgt/core/application/mgt/core/dao/impl/application/GenericApplicationDAOImpl.java

@@ -656,6 +656,76 @@ public class GenericApplicationDAOImpl extends AbstractDAOImpl implements Applic
         }
     }
 
+    @Override
+    public  List<ApplicationDTO> getSubscribedAppsOfDevice(int deviceId, int tenantId) throws
+            ApplicationManagementDAOException {
+        if (log.isDebugEnabled()) {
+            log.debug("Getting all installed apps of device " + deviceId
+                    + " from the database");
+        }
+        List<ApplicationDTO> appList = null;
+
+        String sql = "SELECT "
+                + "AP_APP.ID AS APP_ID, "
+                + "AP_APP.NAME AS APP_NAME, "
+                + "AP_APP.DESCRIPTION AS APP_DESCRIPTION, "
+                + "AP_APP.TYPE AS APP_TYPE, "
+                + "AP_APP.STATUS AS APP_STATUS, "
+                + "AP_APP.SUB_TYPE AS APP_SUB_TYPE, "
+                + "AP_APP.CURRENCY AS APP_CURRENCY, "
+                + "AP_APP.RATING AS APP_RATING, "
+                + "AP_APP.DEVICE_TYPE_ID AS APP_DEVICE_TYPE_ID, "
+                + "AP_APP_RELEASE.ID AS RELEASE_ID, "
+                + "AP_APP_RELEASE.DESCRIPTION AS RELEASE_DESCRIPTION, "
+                + "AP_APP_RELEASE.VERSION AS RELEASE_VERSION, "
+                + "AP_APP_RELEASE.UUID AS RELEASE_UUID, "
+                + "AP_APP_RELEASE.RELEASE_TYPE AS RELEASE_TYPE, "
+                + "AP_APP_RELEASE.INSTALLER_LOCATION AS AP_RELEASE_STORED_LOC, "
+                + "AP_APP_RELEASE.ICON_LOCATION AS AP_RELEASE_ICON_LOC, "
+                + "AP_APP_RELEASE.BANNER_LOCATION AS AP_RELEASE_BANNER_LOC, "
+                + "AP_APP_RELEASE.SC_1_LOCATION AS AP_RELEASE_SC1, "
+                + "AP_APP_RELEASE.SC_2_LOCATION AS AP_RELEASE_SC2, "
+                + "AP_APP_RELEASE.SC_3_LOCATION AS AP_RELEASE_SC3, "
+                + "AP_APP_RELEASE.APP_HASH_VALUE AS RELEASE_HASH_VALUE, "
+                + "AP_APP_RELEASE.APP_PRICE AS RELEASE_PRICE, "
+                + "AP_APP_RELEASE.APP_META_INFO AS RELEASE_META_INFO, "
+                + "AP_APP_RELEASE.PACKAGE_NAME AS PACKAGE_NAME, "
+                + "AP_APP_RELEASE.SUPPORTED_OS_VERSIONS AS RELEASE_SUP_OS_VERSIONS, "
+                + "AP_APP_RELEASE.RATING AS RELEASE_RATING, "
+                + "AP_APP_RELEASE.CURRENT_STATE AS RELEASE_CURRENT_STATE, "
+                + "AP_APP_RELEASE.RATED_USERS AS RATED_USER_COUNT "
+                + "FROM AP_APP "
+                + "JOIN AP_APP_RELEASE ON AP_APP.ID = AP_APP_RELEASE.AP_APP_ID "
+                + "JOIN AP_DEVICE_SUBSCRIPTION ON AP_APP_RELEASE.ID = AP_DEVICE_SUBSCRIPTION.AP_APP_RELEASE_ID "
+                + "WHERE AP_DEVICE_SUBSCRIPTION.DM_DEVICE_ID = ? AND AP_DEVICE_SUBSCRIPTION.TENANT_ID= ? "
+                +"AND AP_DEVICE_SUBSCRIPTION.STATUS= 'COMPLETED'";
+
+        try {
+            Connection conn = this.getDBConnection();
+            try (PreparedStatement stmt = conn.prepareStatement(sql)) {
+                stmt.setInt(1, deviceId);
+                stmt.setInt(2, tenantId);
+                try (ResultSet rs = stmt.executeQuery()) {
+                    appList = new ArrayList<>();
+                    while (rs.next()) {
+                        ApplicationDTO app =  DAOUtil.loadDeviceApp(rs);
+                        appList.add(app);
+                    }
+                    return appList;
+                }
+            }
+        } catch (DBConnectionException e) {
+            String msg = "Error occurred while obtaining the DB connection for getting all apps installed on the device of "
+                    + "device Id: " + deviceId + ".";
+            log.error(msg, e);
+            throw new ApplicationManagementDAOException(msg, e);
+        } catch (SQLException e) {
+            String msg = "Error occurred while while running SQL to get all installed apps of device with device Id: " + deviceId;
+            log.error(msg, e);
+            throw new ApplicationManagementDAOException(msg, e);
+        }
+    }
+
     @Override
     public boolean updateApplication(ApplicationDTO applicationDTO, int tenantId)
             throws ApplicationManagementDAOException {

components/application-mgt/io.entgra.device.mgt.core.application.mgt.core/src/main/java/io/entgra/device/mgt/core/application/mgt/core/impl/ApplicationManagerImpl.java

@@ -1444,6 +1444,35 @@ public class ApplicationManagerImpl implements ApplicationManager {
         }
     }
 
+    @Override
+    public  ApplicationList getSubscribedAppsOfDevice(int deviceId) throws ApplicationManagementException {
+        ApplicationList applicationList = new ApplicationList();
+        List<Application> applications = new ArrayList<>();
+        int tenantId = PrivilegedCarbonContext.getThreadLocalCarbonContext().getTenantId(true);
+        try {
+            ConnectionManagerUtil.openDBConnection();
+            List<ApplicationDTO>  applicationDTOS = this.applicationDAO.getSubscribedAppsOfDevice(deviceId, tenantId);
+            for (ApplicationDTO applicationDTO: applicationDTOS) {
+                applicationDTO.setTags(this.applicationDAO.getAppTags(applicationDTO.getId(), tenantId));
+                applicationDTO.setAppCategories(this.applicationDAO.getAppCategories(applicationDTO.getId(), tenantId));
+                applications.add(APIUtil.appDtoToAppResponse(applicationDTO));
+            }
+            applicationList.setApplications(applications);
+            return applicationList;
+        } catch (ApplicationManagementDAOException e) {
+            String msg = "Error occurred when getting installed apps of device with device id: "
+                    + deviceId;
+            log.error(msg, e);
+            throw new ApplicationManagementException(msg, e);
+        } catch (DBConnectionException e) {
+            String msg = "DB Connection error occurred while getting  installed apps of device with device id: " + deviceId;
+            log.error(msg, e);
+            throw new ApplicationManagementException(msg, e);
+        } finally {
+            ConnectionManagerUtil.closeDBConnection();
+        }
+    }
+
     /**
      * Check whether given OS range is valid or invalid
      *

components/application-mgt/io.entgra.device.mgt.core.application.mgt.core/src/main/java/io/entgra/device/mgt/core/application/mgt/core/util/DAOUtil.java

@@ -241,6 +241,26 @@ public class DAOUtil {
         return applicationDTOs.get(0);
     }
 
+    public static ApplicationDTO loadDeviceApp(ResultSet rs) throws SQLException {
+        ApplicationDTO application = new ApplicationDTO();
+        application.setId( rs.getInt("APP_ID"));
+        application.setName(rs.getString("APP_NAME"));
+        application.setDescription(rs.getString("APP_DESCRIPTION"));
+        application.setType(rs.getString("APP_TYPE"));
+        application.setSubType(rs.getString("APP_SUB_TYPE"));
+        application.setPaymentCurrency(rs.getString("APP_CURRENCY"));
+        application.setStatus(rs.getString("APP_STATUS"));
+        application.setAppRating(rs.getDouble("APP_RATING"));
+        application.setDeviceTypeId(rs.getInt("APP_DEVICE_TYPE_ID"));
+        ApplicationReleaseDTO releaseDTO = constructAppReleaseDTO(rs);
+        List<ApplicationReleaseDTO> releaseDtoList = new ArrayList<>();
+        if (releaseDTO != null) {
+            releaseDtoList.add(constructAppReleaseDTO(rs));
+            application.setApplicationReleaseDTOs(releaseDtoList);
+        }
+        return application;
+    }
+
     /**
      * Populates {@link ApplicationReleaseDTO} object with the result obtained from the database.
      *