Add docUrl into metadata.

components/device-mgt/io.entgra.device.mgt.core.device.mgt.common/src/main/java/io/entgra/device/mgt/core/device/mgt/common/metadata/mgt/WhiteLabelTheme.java

@@ -24,6 +24,7 @@ public class WhiteLabelTheme {
     private WhiteLabelImage logoIconImage;
     private String footerText;
     private String appTitle;
+    private String docUrl;
 
     public String getFooterText() {
         return footerText;
@@ -64,4 +65,12 @@ public class WhiteLabelTheme {
     public void setLogoIconImage(WhiteLabelImage logoIconImage) {
         this.logoIconImage = logoIconImage;
     }
+
+    public String getDocUrl() {
+        return docUrl;
+    }
+
+    public void setDocUrl(String docUrl) {
+        this.docUrl = docUrl;
+    }
 }

components/device-mgt/io.entgra.device.mgt.core.device.mgt.common/src/main/java/io/entgra/device/mgt/core/device/mgt/common/metadata/mgt/WhiteLabelThemeCreateRequest.java

@@ -24,6 +24,7 @@ public class WhiteLabelThemeCreateRequest {
     private WhiteLabelImageRequestPayload logoIcon;
     private String footerText;
     private String appTitle;
+    private String docUrl;
 
     public WhiteLabelImageRequestPayload getFavicon() {
         return favicon;
@@ -64,4 +65,12 @@ public class WhiteLabelThemeCreateRequest {
     public void setLogoIcon(WhiteLabelImageRequestPayload logoIcon) {
         this.logoIcon = logoIcon;
     }
+
+    public String getDocUrl() {
+        return docUrl;
+    }
+
+    public void setDocUrl(String docUrl) {
+        this.docUrl = docUrl;
+    }
 }

components/device-mgt/io.entgra.device.mgt.core.device.mgt.core/src/main/java/io/entgra/device/mgt/core/device/mgt/core/config/metadata/mgt/whitelabel/WhiteLabelConfiguration.java

@@ -26,6 +26,16 @@ public class WhiteLabelConfiguration {
     private String footerText;
     private String appTitle;
     private WhiteLabelImages whiteLabelImages;
+    private String docUrl;
+
+    @XmlElement(name = "DocUrl", required = true)
+    public String getDocUrl() {
+        return docUrl;
+    }
+
+    public void setDocUrl(String docUrl) {
+        this.docUrl = docUrl;
+    }
 
     @XmlElement(name = "FooterText", required = true)
     public String getFooterText() {

components/device-mgt/io.entgra.device.mgt.core.device.mgt.core/src/main/java/io/entgra/device/mgt/core/device/mgt/core/internal/DeviceManagementServiceComponent.java

@@ -18,6 +18,7 @@
 package io.entgra.device.mgt.core.device.mgt.core.internal;
 
 import io.entgra.device.mgt.core.device.mgt.common.authorization.GroupAccessAuthorizationService;
+import io.entgra.device.mgt.core.device.mgt.common.exceptions.MetadataManagementException;
 import io.entgra.device.mgt.core.device.mgt.common.metadata.mgt.DeviceStatusManagementService;
 import io.entgra.device.mgt.core.device.mgt.core.authorization.GroupAccessAuthorizationServiceImpl;
 import io.entgra.device.mgt.core.device.mgt.core.metadata.mgt.DeviceStatusManagementServiceImpl;
@@ -335,15 +336,14 @@ public class DeviceManagementServiceComponent {
         bundleContext.registerService(MetadataManagementService.class.getName(), metadataManagementService, null);
 
         /* Registering Whitelabel Service */
-        WhiteLabelManagementService whiteLabelManagementService = new WhiteLabelManagementServiceImpl();
-        DeviceManagementDataHolder.getInstance().setWhiteLabelManagementService(whiteLabelManagementService);
         try {
+            WhiteLabelManagementService whiteLabelManagementService = new WhiteLabelManagementServiceImpl();
+            DeviceManagementDataHolder.getInstance().setWhiteLabelManagementService(whiteLabelManagementService);
             whiteLabelManagementService.addDefaultWhiteLabelThemeIfNotExist(tenantId);
-        } catch (Throwable e) {
-            log.error("Error occurred while adding default tenant white label theme", e);
-
+            bundleContext.registerService(WhiteLabelManagementService.class.getName(), whiteLabelManagementService, null);
+        } catch (MetadataManagementException e) {
+            log.error("Error occurred while initializing the white label management service", e);
         }
-        bundleContext.registerService(WhiteLabelManagementService.class.getName(), whiteLabelManagementService, null);
 
         /* Registering DeviceState Filter Service */
         DeviceStatusManagementService deviceStatusManagementService = new DeviceStatusManagementServiceImpl();

components/device-mgt/io.entgra.device.mgt.core.device.mgt.core/src/main/java/io/entgra/device/mgt/core/device/mgt/core/metadata/mgt/WhiteLabelManagementServiceImpl.java

@@ -60,8 +60,47 @@ public class WhiteLabelManagementServiceImpl implements WhiteLabelManagementServ
 
     private final MetadataDAO metadataDAO;
 
-    public WhiteLabelManagementServiceImpl() {
+    public WhiteLabelManagementServiceImpl() throws MetadataManagementException {
         this.metadataDAO = MetadataManagementDAOFactory.getMetadataDAO();
+        initializeWhiteLabelThemes();
+    }
+
+    private void initializeWhiteLabelThemes() throws MetadataManagementException {
+        int tenantId = PrivilegedCarbonContext.getThreadLocalCarbonContext().getTenantId(true);
+        WhiteLabelTheme defaultTheme = getDefaultWhiteLabelTheme();
+        Metadata whiteLabelMetadata = getWhiteLabelMetaData(tenantId);
+        if (whiteLabelMetadata != null) {
+            WhiteLabelTheme whiteLabelTheme = new Gson().fromJson(whiteLabelMetadata.getMetaValue(),
+                    WhiteLabelTheme.class);
+            if (whiteLabelTheme.getDocUrl() == null) {
+                whiteLabelTheme.setDocUrl(defaultTheme.getDocUrl());
+                Metadata updatedMetadata = constructWhiteLabelThemeMetadata(whiteLabelTheme);
+                try {
+                    MetadataManagementDAOFactory.beginTransaction();
+                    metadataDAO.updateMetadata(tenantId, updatedMetadata);
+                    MetadataManagementDAOFactory.commitTransaction();
+                    if (log.isDebugEnabled()) {
+                        log.debug("WhiteLabel theme's DocUrl was missing and has been updated to the default value " +
+                                "for tenant: " + tenantId);
+                    }
+                }
+                catch (MetadataManagementDAOException e) {
+                    MetadataManagementDAOFactory.rollbackTransaction();
+                    String msg = "Error occurred while fetching white label metadata for tenant: " + tenantId;
+                    log.error(msg, e);
+                    throw new MetadataManagementException(msg, e);
+                } catch (TransactionManagementException e) {
+                    String msg = "Transaction failed while updating white label theme for tenant: "
+                            + tenantId;
+                    log.error(msg, e);
+                    throw new MetadataManagementException(msg, e);
+                } finally {
+                    MetadataManagementDAOFactory.closeConnection();
+                }
+            }
+        } else {
+            addDefaultWhiteLabelThemeIfNotExist(tenantId);
+        }
     }
 
     @Override
@@ -183,6 +222,16 @@ public class WhiteLabelManagementServiceImpl implements WhiteLabelManagementServ
         WhiteLabelStorageUtil.deleteWhiteLabelImageForTenantIfExists(tenantId);
     }
 
+    /**
+     * Get default metaDataConfiguration DocUrl from config
+     */
+    private String getDefaultDocUrl() {
+        MetaDataConfiguration metaDataConfiguration = DeviceConfigurationManager.getInstance().
+                getDeviceManagementConfig().getMetaDataConfiguration();
+        WhiteLabelConfiguration whiteLabelConfiguration = metaDataConfiguration.getWhiteLabelConfiguration();
+        return whiteLabelConfiguration.getDocUrl();
+    }
+
     /**
      * Construct and return default whitelabel detail bean {@link WhiteLabelImage}
      */
@@ -193,11 +242,13 @@ public class WhiteLabelManagementServiceImpl implements WhiteLabelManagementServ
         WhiteLabelImage logo = constructDefaultLogoImage();
         WhiteLabelImage logoIcon = constructDefaultLogoIconImage();
         WhiteLabelTheme defaultTheme = new WhiteLabelTheme();
+        String docUrl = getDefaultDocUrl();
         defaultTheme.setFooterText(footerText);
         defaultTheme.setAppTitle(appTitle);
         defaultTheme.setLogoImage(logo);
         defaultTheme.setLogoIconImage(logoIcon);
         defaultTheme.setFaviconImage(favicon);
+        defaultTheme.setDocUrl(docUrl);
         return defaultTheme;
     }
 
@@ -386,6 +437,7 @@ public class WhiteLabelManagementServiceImpl implements WhiteLabelManagementServ
         whiteLabelTheme.setLogoIconImage(logoIconImage);
         whiteLabelTheme.setFooterText(whiteLabelThemeCreateRequest.getFooterText());
         whiteLabelTheme.setAppTitle(whiteLabelThemeCreateRequest.getAppTitle());
+        whiteLabelTheme.setDocUrl(whiteLabelThemeCreateRequest.getDocUrl());
         return whiteLabelTheme;
     }
 
@@ -418,6 +470,38 @@ public class WhiteLabelManagementServiceImpl implements WhiteLabelManagementServ
         return metadata;
     }
 
+    /**
+     * updates the given WhiteLabelTheme with default value for docUrl
+     *
+     * @param whiteLabelTheme the WhiteLabelTheme to be updated with defaults if necessary.
+     * @param tenantId the ID of the tenant whose metadata is being updated.
+     * @throws MetadataManagementException exception for an error occurs during the update or transaction commit.
+     */
+    private void updateWhiteLabelThemeWithDefaults(WhiteLabelTheme whiteLabelTheme, int tenantId)
+            throws MetadataManagementException {
+        WhiteLabelTheme defaultTheme = getDefaultWhiteLabelTheme();
+        if (whiteLabelTheme.getDocUrl() == null) {
+            whiteLabelTheme.setDocUrl(defaultTheme.getDocUrl());
+        }
+        Metadata updatedMetadata = constructWhiteLabelThemeMetadata(whiteLabelTheme);
+        try {
+            MetadataManagementDAOFactory.beginTransaction();
+            metadataDAO.updateMetadata(tenantId, updatedMetadata);
+            MetadataManagementDAOFactory.commitTransaction();
+        } catch (MetadataManagementDAOException e) {
+            MetadataManagementDAOFactory.rollbackTransaction();
+            String msg = "Error occurred while updating metadata for tenant: " + tenantId;
+            log.error(msg, e);
+            throw new MetadataManagementException(msg, e);
+        } catch (TransactionManagementException e) {
+            String msg = "Error occurred while committing the transaction for tenant: " + tenantId;
+            log.error(msg, e);
+            throw new MetadataManagementException(msg, e);
+        } finally {
+            MetadataManagementDAOFactory.closeConnection();
+        }
+    }
+
     @Override
     public WhiteLabelTheme getWhiteLabelTheme(String tenantDomain) throws MetadataManagementException, DeviceManagementException {
         int tenantId = DeviceManagerUtil.getTenantId(tenantDomain);
@@ -435,7 +519,11 @@ public class WhiteLabelManagementServiceImpl implements WhiteLabelManagementServ
                 throw new MetadataManagementException(msg);
             }
         }
-        return new Gson().fromJson(metadata.getMetaValue(), WhiteLabelTheme.class);
+        WhiteLabelTheme whiteLabelTheme = new Gson().fromJson(metadata.getMetaValue(), WhiteLabelTheme.class);
+        if (whiteLabelTheme.getDocUrl() == null) {
+            updateWhiteLabelThemeWithDefaults(whiteLabelTheme, tenantId);
+        }
+        return whiteLabelTheme;
     }
 
     /**

features/device-mgt/io.entgra.device.mgt.core.device.mgt.basics.feature/src/main/resources/conf/cdm-config.xml

@@ -200,10 +200,8 @@
                 <DefaultLogoIconName>icon.png</DefaultLogoIconName>
                 <DefaultImagesLocation>default</DefaultImagesLocation>
             </WhiteLabelImages>
-        </WhiteLabelConfiguration>
-        <DocConfiguration>
             <DocUrl>https://docs.entgra.io/uem/6.0.0</DocUrl>
-        </DocConfiguration>
+        </WhiteLabelConfiguration>
     </MetaDataConfiguration>
 
     <OperationTimeoutConfigurations>

features/device-mgt/io.entgra.device.mgt.core.device.mgt.basics.feature/src/main/resources/conf_templates/templates/repository/conf/cdm-config.xml.j2

@@ -348,12 +348,10 @@
                 <DefaultLogoIconName>icon.png</DefaultLogoIconName>
                 <DefaultImagesLocation>default</DefaultImagesLocation>
             </WhiteLabelImages>
-        </WhiteLabelConfiguration>
-        <DocConfiguration>
             {% if product_conf is defined %}
-            <DocUrl>https://docs.entgra.io/uem/{{product_conf.server_version}}</DocUrl>
+                <DocUrl>https://docs.entgra.io/uem/{{product_conf.server_version}}</DocUrl>
             {% endif %}
-        </DocConfiguration>
+        </WhiteLabelConfiguration>
     </MetaDataConfiguration>
     <OperationTimeoutConfigurations>
             <OperationTimeouts>