fix NPE on color picking on dist and software types

Signed-off-by: Michael Hirsch <michael.hirsch@bosch-si.com>

hawkbit-ui/src/main/java/org/eclipse/hawkbit/ui/artifacts/smtype/CreateUpdateSoftwareTypeLayout.java

@@ -16,6 +16,7 @@ import org.eclipse.hawkbit.repository.SoftwareManagement;
 import org.eclipse.hawkbit.repository.model.SoftwareModuleType;
 import org.eclipse.hawkbit.ui.artifacts.event.SoftwareModuleTypeEvent;
 import org.eclipse.hawkbit.ui.artifacts.event.SoftwareModuleTypeEvent.SoftwareModuleTypeEnum;
+import org.eclipse.hawkbit.ui.colorpicker.ColorPickerConstants;
 import org.eclipse.hawkbit.ui.colorpicker.ColorPickerHelper;
 import org.eclipse.hawkbit.ui.common.SoftwareModuleTypeBeanQuery;
 import org.eclipse.hawkbit.ui.common.builder.LabelBuilder;
@@ -93,6 +94,18 @@ public class CreateUpdateSoftwareTypeLayout extends CreateUpdateTypeLayout<Softw
         singleMultiOptionGroup();
     }
 
+    @Override
+    protected Color getColorForColorPicker() {
+
+        final SoftwareModuleType typeSelected = swTypeManagementService
+                .findSoftwareModuleTypeByName(tagNameComboBox.getValue().toString());
+        if (null != typeSelected) {
+            return typeSelected.getColour() != null ? ColorPickerHelper.rgbToColorConverter(typeSelected.getColour())
+                    : ColorPickerHelper.rgbToColorConverter(ColorPickerConstants.DEFAULT_COLOR);
+        }
+        return ColorPickerHelper.rgbToColorConverter(ColorPickerConstants.DEFAULT_COLOR);
+    }
+
     private TextField createTextField(final String in18Key, final String styleName, final String id) {
         return new TextFieldBuilder().caption(i18n.get(in18Key)).styleName(ValoTheme.TEXTFIELD_TINY + " " + styleName)
                 .required(true).prompt(i18n.get(in18Key)).immediate(true).id(id).buildTextComponent();

hawkbit-ui/src/main/java/org/eclipse/hawkbit/ui/distributions/disttype/CreateUpdateDistSetTypeLayout.java

@@ -16,6 +16,7 @@ import org.eclipse.hawkbit.repository.EntityFactory;
 import org.eclipse.hawkbit.repository.SoftwareManagement;
 import org.eclipse.hawkbit.repository.model.DistributionSetType;
 import org.eclipse.hawkbit.repository.model.SoftwareModuleType;
+import org.eclipse.hawkbit.ui.colorpicker.ColorPickerConstants;
 import org.eclipse.hawkbit.ui.colorpicker.ColorPickerHelper;
 import org.eclipse.hawkbit.ui.common.DistributionSetTypeBeanQuery;
 import org.eclipse.hawkbit.ui.common.builder.TextAreaBuilder;
@@ -38,6 +39,7 @@ import com.vaadin.data.Item;
 import com.vaadin.data.Property.ValueChangeEvent;
 import com.vaadin.data.util.IndexedContainer;
 import com.vaadin.server.FontAwesome;
+import com.vaadin.shared.ui.colorpicker.Color;
 import com.vaadin.spring.annotation.SpringComponent;
 import com.vaadin.spring.annotation.ViewScope;
 import com.vaadin.ui.AbstractSelect.ItemDescriptionGenerator;
@@ -121,6 +123,18 @@ public class CreateUpdateDistSetTypeLayout extends CreateUpdateTypeLayout<Distri
         mainLayout.addComponent(twinTableLayout, 2, 0);
     }
 
+    @Override
+    protected Color getColorForColorPicker() {
+        final DistributionSetType existedDistType = distributionSetManagement
+                .findDistributionSetTypeByName(tagNameComboBox.getValue().toString());
+        if (null != existedDistType) {
+            return existedDistType.getColour() != null
+                    ? ColorPickerHelper.rgbToColorConverter(existedDistType.getColour())
+                    : ColorPickerHelper.rgbToColorConverter(ColorPickerConstants.DEFAULT_COLOR);
+        }
+        return ColorPickerHelper.rgbToColorConverter(ColorPickerConstants.DEFAULT_COLOR);
+    }
+
     private HorizontalLayout createTwinColumnLayout() {
 
         final HorizontalLayout twinColumnLayout = new HorizontalLayout();

hawkbit-ui/src/main/java/org/eclipse/hawkbit/ui/layouts/AbstractCreateUpdateTagLayout.java

@@ -250,40 +250,39 @@ public abstract class AbstractCreateUpdateTagLayout<E extends NamedEntity> exten
      * Open color picker on click of preview button. Auto select the color based
      * on target tag if already selected.
      */
-    protected void previewButtonClicked() {
+    private void previewButtonClicked() {
         if (!tagPreviewBtnClicked) {
-            setColor();
+            final String selectedOption = (String) optiongroup.getValue();
+            if (selectedOption == null || !selectedOption.equalsIgnoreCase(updateTagStr)) {
+                return;
+            }
+
+            if (tagNameComboBox.getValue() == null) {
+                colorPickerLayout
+                        .setSelectedColor(ColorPickerHelper.rgbToColorConverter(ColorPickerConstants.DEFAULT_COLOR));
+                return;
+            }
+            colorPickerLayout.setSelectedColor(getColorForColorPicker());
         }
 
         tagPreviewBtnClicked = !tagPreviewBtnClicked;
         colorPickerLayout.setVisible(tagPreviewBtnClicked);
     }
 
-    private void setColor() {
+    /**
-        final String selectedOption = (String) optiongroup.getValue();
+     * @return the color which should be selected in the color-picker component.
-        if (selectedOption == null || !selectedOption.equalsIgnoreCase(updateTagStr)) {
+     */
-            return;
+    protected Color getColorForColorPicker() {
-        }
-
-        if (tagNameComboBox.getValue() == null) {
-            colorPickerLayout
-                    .setSelectedColor(ColorPickerHelper.rgbToColorConverter(ColorPickerConstants.DEFAULT_COLOR));
-            return;
-        }
-
         final TargetTag targetTagSelected = tagManagement.findTargetTag(tagNameComboBox.getValue().toString());
-
         if (targetTagSelected == null) {
             final DistributionSetTag distTag = tagManagement
                     .findDistributionSetTag(tagNameComboBox.getValue().toString());
-            colorPickerLayout.setSelectedColor(
+            return distTag.getColour() != null ? ColorPickerHelper.rgbToColorConverter(distTag.getColour())
-                    distTag.getColour() != null ? ColorPickerHelper.rgbToColorConverter(distTag.getColour())
+                    : ColorPickerHelper.rgbToColorConverter(ColorPickerConstants.DEFAULT_COLOR);
-                            : ColorPickerHelper.rgbToColorConverter(ColorPickerConstants.DEFAULT_COLOR));
-        } else {
-            colorPickerLayout.setSelectedColor(targetTagSelected.getColour() != null
-                    ? ColorPickerHelper.rgbToColorConverter(targetTagSelected.getColour())
-                    : ColorPickerHelper.rgbToColorConverter(ColorPickerConstants.DEFAULT_COLOR));
         }
+        return targetTagSelected.getColour() != null
+                ? ColorPickerHelper.rgbToColorConverter(targetTagSelected.getColour())
+                : ColorPickerHelper.rgbToColorConverter(ColorPickerConstants.DEFAULT_COLOR);
     }
 
     private void tagNameChosen(final ValueChangeEvent event) {