Add method for get installed applications using device ID

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

@@ -114,4 +114,14 @@ public interface ApplicationDAO {
      * @throws DeviceManagementDAOException
      */
     String getIconPath(String applicationIdentifier) throws DeviceManagementDAOException;
+
+    /**
+     * This method is used to get the installed application list of a specific device
+     * @param deviceId ID of the device
+     * @param enrolmentId Enrolment ID of the device
+     * @param tenantId tenant ID
+     * @throws DeviceManagementDAOException If any database error occurred
+     */
+    List<Application> getInstalledApplicationListOnDevice(int deviceId, int enrolmentId, int tenantId)
+            throws DeviceManagementDAOException;
 }

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

@@ -575,4 +575,50 @@ public class ApplicationDAOImpl implements ApplicationDAO {
         }
         return applicationList;
     }
+
+    public List<Application> getInstalledApplicationListOnDevice(int deviceId, int enrolmentId, int tenantId)
+            throws DeviceManagementDAOException {
+        Connection conn;
+        List<Application> applicationList = new ArrayList<>();
+        Application application;
+        String sql = "SELECT " +
+                "ID, " +
+                "NAME, " +
+                "APP_IDENTIFIER, " +
+                "PLATFORM, " +
+                "CATEGORY, " +
+                "VERSION, " +
+                "TYPE, " +
+                "LOCATION_URL, " +
+                "IMAGE_URL, " +
+                "APP_PROPERTIES, " +
+                "MEMORY_USAGE, " +
+                "IS_ACTIVE, " +
+                "TENANT_ID " +
+                "FROM DM_APPLICATION " +
+                "WHERE DEVICE_ID = ? AND " +
+                "ENROLMENT_ID = ? AND " +
+                "TENANT_ID = ? ";
+        try {
+            conn = this.getConnection();
+            try (PreparedStatement stmt = conn.prepareStatement(sql)) {
+                stmt.setInt(1, deviceId);
+                stmt.setInt(2, enrolmentId);
+                stmt.setInt(3, tenantId);
+                try (ResultSet rs = stmt.executeQuery()) {
+                    while (rs.next()) {
+                        application = loadApplication(rs);
+                        applicationList.add(application);
+                    }
+                }
+            }
+
+        } catch (SQLException e) {
+            String msg = "SQL Error occurred while retrieving the list of Applications " +
+                    "installed in device id '" + deviceId;
+            log.error(msg, e);
+            throw new DeviceManagementDAOException(msg, e);
+        }
+        return applicationList;
+    }
 }

components/device-mgt/io.entgra.device.mgt.core.device.mgt.core/src/main/java/io/entgra/device/mgt/core/device/mgt/core/service/DeviceManagementProviderService.java

@@ -1030,10 +1030,9 @@ public interface DeviceManagementProviderService {
      * @param iconPath Icon path of the application
      * @param packageName Package name of the application
      * @param version Version of the application
-     * @param tenantId Tenant ID of the application created user
      * @throws DeviceManagementException if any service level or DAO level error occurs
      */
-    void saveApplicationIcon(String iconPath, String packageName, String version, int tenantId)
+    void saveApplicationIcon(String iconPath, String packageName, String version)
             throws DeviceManagementException;
 
     /**
@@ -1062,4 +1061,12 @@ public interface DeviceManagementProviderService {
      */
     List<Application> getInstalledApplicationsOnDevice(Device device, int offset, int limit)
             throws DeviceManagementException;
+
+    /**
+     * This method is for getting the installed application list of a device
+     * @param device {@link Device}
+     * @return list of applications {@link Application}
+     * @throws DeviceManagementException if any service level or DAO level error occurs
+     */
+    List<Application> getInstalledApplicationsOnDevice(Device device) throws DeviceManagementException;
 }

components/device-mgt/io.entgra.device.mgt.core.device.mgt.core/src/main/java/io/entgra/device/mgt/core/device/mgt/core/service/DeviceManagementProviderServiceImpl.java

@@ -4953,9 +4953,11 @@ public class DeviceManagementProviderServiceImpl implements DeviceManagementProv
     }
 
     @Override
-    public void saveApplicationIcon(String iconPath, String packageName, String version, int tenantId) throws DeviceManagementException{
+    public void saveApplicationIcon(String iconPath, String packageName, String version) throws DeviceManagementException{
+        int tenantId = 0;
         try{
             DeviceManagementDAOFactory.beginTransaction();
+            tenantId = CarbonContext.getThreadLocalCarbonContext().getTenantId();
             if(applicationDAO.getApplicationPackageCount(packageName) == 0){
                 applicationDAO.saveApplicationIcon(iconPath, packageName, version, tenantId);
             }
@@ -5077,4 +5079,38 @@ public class DeviceManagementProviderServiceImpl implements DeviceManagementProv
         }
         return newApplicationList;
     }
+
+    public List<Application> getInstalledApplicationsOnDevice(Device device) throws DeviceManagementException {
+        List<Application> applications;
+        try {
+            DeviceManagementDAOFactory.openConnection();
+            int tenantId = CarbonContext.getThreadLocalCarbonContext().getTenantId();
+            applications = applicationDAO.getInstalledApplicationListOnDevice(device.getId(),
+                    device.getEnrolmentInfo().getId(), tenantId);
+            if (applications == null) {
+                String msg = "Couldn't found applications for device identifier '" + device.getId() + "'";
+                log.error(msg);
+                throw new DeviceManagementException(msg);
+            }
+        } catch (DeviceManagementDAOException e) {
+            String msg = "Error occurred while retrieving the application list of android device, " +
+                    "which carries the id '" + device.getId() + "'";
+            log.error(msg, e);
+            throw new DeviceManagementException(msg, e);
+        } catch (SQLException e) {
+            String msg = "Error occurred while opening a connection to the data source";
+            log.error(msg, e);
+            throw new DeviceManagementException(msg, e);
+        } finally {
+            DeviceManagementDAOFactory.closeConnection();
+        }
+        List<Application> newApplicationList;
+        newApplicationList = this.getInstalledAppIconInfo(applications);
+        if (newApplicationList == null) {
+            String msg = "Error occurred while getting app icon info for device identifier '" + device.getId() + "'";
+            log.error(msg);
+            throw new DeviceManagementException(msg);
+        }
+        return newApplicationList;
+    }
 }