Implement a default dialog for the logging service.

* Add a default dialog and handler class.
* Move the main parts of the service from the base plugin to the kernel.
* Introduce a severity enum since using int "codes" is flawed and we do
  not use underlying eclipse methods like the logging methods in the
  LoggingUtils class.

Issue-Ref: 3574
Issue-Url: https://af3-developer.fortiss.org/issues/3574


Signed-off-by: Alexander Diewald <diewald@fortiss.org>

org.fortiss.tooling.base.ui/src/org/fortiss/tooling/base/ui/dialog/.ratings

@@ -3,8 +3,7 @@ CheckBoxTreeDialog.java 2737a18ff8dda511466ba0f467d777a3a56e99a3 GREEN
 ElementTreeMultiSelectDialog.java 3b2ba4afc337e35175ce2e7d28e248f9d853ee32 GREEN
 ElementTreeSingleSelectDialog.java af76db0d43752b8a7af6ecdd6963f80c446f5b39 GREEN
 IDialogEditSupport.java 3c66b23d66cffaaf9bb4848b025a3fdb1a5b86dc GREEN
-MessageUtilsExtended.java 930a54539160f6a214b6c0d98b0e3b3459c0740c GREEN
 ModelElementTreeContentProvider.java ac8da7ee7adf800850c528aa35e139b76a7d0318 GREEN
-ModelElementWithRefCopyMessageHandler.java b03a5e82d540750852b3619ad9aeb5cf5f5b0617 GREEN
+ModelElementWithRefCopyMessageHandler.java 1eb24195dbc9d5e3c019a841c312370e676c70fa YELLOW
 MultiFieldInputDialog.java 780e7a2aaab687666325b69d51d8df02646d723a GREEN
 MultiRootTreeContentProvider.java 279ed5c5bcc5f000bf4e8f0fa3c131ba0411221b GREEN

org.fortiss.tooling.base.ui/src/org/fortiss/tooling/base/ui/dialog/ModelElementWithRefCopyMessageHandler.java

@@ -15,7 +15,7 @@
 +--------------------------------------------------------------------------*/
 package org.fortiss.tooling.base.ui.dialog;
 
-import static org.fortiss.tooling.base.ui.dialog.MessageUtilsExtended.showWarningInUIThread;
+import static org.fortiss.tooling.kernel.ui.util.MessageUtilsExtended.showWarningInUIThread;
 
 import org.fortiss.tooling.base.compose.ModelElementWithRefCopyMessage;
 import org.fortiss.tooling.base.model.element.IModelElementSpecification;

org.fortiss.tooling.kernel.ui/plugin.xml

@@ -159,4 +159,12 @@
          </modelElementClass>
       </modelElementHandler>
    </extension>
+   <extension point="org.fortiss.tooling.kernel.uiMessageHandler">
+      <uiMessageHandler
+            handler="org.fortiss.tooling.kernel.ui.extension.base.DialogMessageHandler">
+         <objectClass
+               objectClass="org.fortiss.tooling.kernel.extension.base.DialogMessage">
+         </objectClass>
+      </uiMessageHandler>
+   </extension>
 </plugin>

org.fortiss.tooling.kernel.ui/src/org/fortiss/tooling/kernel/ui/extension/base/.ratings

 ConstraintUIBases.java 3676a600e0866091db9798763c6eee97eec5b55b GREEN
 ContextMenuSubMenuContributorBase.java 6275d96fe8690d9d4744bcbaef3c7d14ba8e30ff GREEN
+DialogMessageHandler.java 173625e14ace15c4bfc32aa338e1da7247d7081c YELLOW
 EObjectActionBase.java 4ef9f8be59e64d4838acc9e268d418ba5d94fa1a GREEN
 EReferencePropertySectionBase.java 3347e99b2fc135dd4b3117407179900ef757092c GREEN
 EditorBase.java 9c09fff92945256bb8680992ae7bb2c78f47b150 GREEN

org.fortiss.tooling.kernel.ui/src/org/fortiss/tooling/kernel/ui/extension/base/DialogMessageHandler.java

+/*-------------------------------------------------------------------------+
+| Copyright 2015 fortiss GmbH                                              |
+|                                                                          |
+| Licensed 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                                  |
+|                                                                          |
+|    http://www.apache.org/licenses/LICENSE-2.0                            |
+|                                                                          |
+| 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.fortiss.tooling.kernel.ui.extension.base;
+
+import static org.fortiss.tooling.kernel.ui.util.MessageUtilsExtended.showErrorInUIThread;
+import static org.fortiss.tooling.kernel.ui.util.MessageUtilsExtended.showInfoInUIThread;
+import static org.fortiss.tooling.kernel.ui.util.MessageUtilsExtended.showWarningInUIThread;
+
+import org.fortiss.tooling.kernel.extension.ILogMessageHandler;
+import org.fortiss.tooling.kernel.extension.base.DialogMessage;
+import org.fortiss.tooling.kernel.extension.data.ILogMessageContext;
+
+/**
+ * {@link ILogMessageHandler} that displays warning dialogs of
+ * {@link ModelElementWithRefCopyMessage}
+ * s which are emitted when a user copies elements which reference
+ * {@link IModelElementSpecification}s.
+ * 
+ * @author diewald
+ */
+public class DialogMessageHandler implements ILogMessageHandler<DialogMessage> {
+
+	/** {@inheritDoc} */
+	@Override
+	public void showMessage(DialogMessage message, ILogMessageContext context) {
+		if(message != null) {
+			switch(message.getSeverity()) {
+				case ERROR:
+					showErrorInUIThread("Error", message.getMessage());
+					break;
+				case WARNING:
+					showWarningInUIThread("Warning", message.getMessage());
+					break;
+				case INFORMATION:
+					showInfoInUIThread("Information", message.getMessage());
+					break;
+			}
+		}
+	}
+}

org.fortiss.tooling.kernel.ui/src/org/fortiss/tooling/kernel/ui/util/.ratings

@@ -6,6 +6,7 @@ DragAndDropUtils.java 7aab91518aa12d76533a345bf6ed0be9ac7ff0e5 GREEN
 EObjectSelectionUtils.java 128cf8f96c6b9478171dff3deda662d5934f5f44 GREEN
 HierarchicalNameViewerComparator.java 199d82e392d4e437810cc65c0fc521dab52038e0 GREEN
 KernelUIUtils.java 46d3279ef3523b104f89a6c526109f72d36f72f2 GREEN
+MessageUtilsExtended.java fa3202e682a4573275fbb9c0db887ec701eeade3 YELLOW
 ObservableUtils.java 34abfd1dfaf9c0acbb31caf1f525e7b39416c116 GREEN
 PropertiesConstantUtils.java 59b1a1e4d594bb98db3aa396f2ff6474ba405920 GREEN
 SelectionUtils.java 33aec7cccccb28e5568140cf8e5443ce0f9f59f7 GREEN

org.fortiss.tooling.base.ui/src/org/fortiss/tooling/base/ui/dialog/MessageUtilsExtended.java → org.fortiss.tooling.kernel.ui/src/org/fortiss/tooling/kernel/ui/util/MessageUtilsExtended.java

@@ -13,7 +13,7 @@
 | See the License for the specific language governing permissions and      |
 | limitations under the License.                                           |
 +--------------------------------------------------------------------------*/
-package org.fortiss.tooling.base.ui.dialog;
+package org.fortiss.tooling.kernel.ui.util;
 
 import org.conqat.ide.commons.ui.dialog.MessageUtils;
 import org.eclipse.swt.widgets.Display;
@@ -39,6 +39,11 @@ public class MessageUtilsExtended {
 		return tempQuestionResult;
 	}
 
+	/** Opens a error dialog in the UI thread. */
+	public static void showErrorInUIThread(final String title, final String message) {
+		syncExec(() -> MessageUtils.showError(title, message));
+	}
+
 	/** Opens a warning dialog in the UI thread. */
 	public static void showWarningInUIThread(final String title, final String message) {
 		syncExec(() -> MessageUtils.showWarning(title, message));

org.fortiss.tooling.kernel/src/org/fortiss/tooling/kernel/extension/base/.ratings

 ConstraintBases.java 93b4743cc1f5e2677635e644663ba934ef7f7f4e GREEN
 ConstraintCheckerBase.java 92de33f1a3071dc6d66a55d8c10f5d5cc967a4fc GREEN
 ConstraintViolationBase.java ec66973ab2183623f0cd4a85c59c886dddad6cf6 GREEN
+DialogMessage.java 167f45ffe175f2654d3a0ac10d46890987450a47 YELLOW
 ElementCompositorBase.java 7a445e5adde11878fe0515baca8b915287149b28 GREEN
 MultiViolationConstraintCheckerBase.java 30886a94c99cf8948f64401b1db821abe06e1e6c GREEN
 PrototypeProviderBase.java ebcd1794c3798b9899a620b01fd5aa0402129423 GREEN

org.fortiss.tooling.kernel/src/org/fortiss/tooling/kernel/extension/base/DialogMessage.java

+/*-------------------------------------------------------------------------+
+| Copyright 2015 fortiss GmbH                                              |
+|                                                                          |
+| Licensed 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                                  |
+|                                                                          |
+|    http://www.apache.org/licenses/LICENSE-2.0                            |
+|                                                                          |
+| 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.fortiss.tooling.kernel.extension.base;
+
+import org.fortiss.tooling.kernel.extension.data.LogMessage;
+import org.fortiss.tooling.kernel.service.ILoggingService;
+
+/**
+ * {@link LogMessage} that presents a defined string in a dialog to the user. It uses the
+ * {@link ILoggingService} to emit messages from non-UI plugins.
+ * 
+ * @author diewald
+ */
+public class DialogMessage extends LogMessage {
+
+	/** Denotes the type of message for presenting the correct dialog type. */
+	@SuppressWarnings("javadoc")
+	public enum MSG_TYPE {
+	INFORMATION, WARNING, ERROR
+	}
+
+	/** Holds the severity of the message. */
+	private MSG_TYPE severity;
+
+	/** Constructor. Default severity: {@link MSG_TYPE#INFORMATION}. */
+	public DialogMessage(String dialogMsg) {
+		super(dialogMsg);
+	}
+
+	/** Constructor. Allows defining the severity. */
+	public DialogMessage(String dialogMsg, MSG_TYPE severity) {
+		super(dialogMsg);
+		this.severity = severity;
+	}
+
+	/** Returns the severity of the message. */
+	public MSG_TYPE getSeverity() {
+		return severity;
+	}
+}

org.fortiss.tooling.kernel/src/org/fortiss/tooling/kernel/utils/.ratings

@@ -8,7 +8,7 @@ HierarchicalNameComparator.java 6face1b673126701a0721af48ead2f9766c17d46 GREEN
 IdentifierUtils.java fff43dc4e84cdd89c3ece4f5d9d89aec4b0749c2 GREEN
 JavaUtils.java 65cdadfb9137a240ad59992eacf53a15b7f20804 GREEN
 KernelModelElementUtils.java 56c86fe9afb23053f50d7279809afd2a5bb10eba GREEN
-LoggingUtils.java a982f7c3371e72feb8658510b5b0358876281a12 GREEN
+LoggingUtils.java 0e0aa5d466d80ea29cfc7e91178b23a5cdd4ddf7 YELLOW
 PrototypesUtils.java ec75bed75cfc5103f1f38e3a29df86f729428775 GREEN
 ResourceUtils.java 698c7db34acb4f1a258a1953e6afcca9823763a8 GREEN
 TransformationUtils.java 495891fae79b99c103cf61f607792dd1e48a5307 GREEN

org.fortiss.tooling.kernel/src/org/fortiss/tooling/kernel/utils/LoggingUtils.java

@@ -18,6 +18,9 @@ package org.fortiss.tooling.kernel.utils;
 import org.eclipse.core.runtime.IStatus;
 import org.eclipse.core.runtime.Plugin;
 import org.eclipse.core.runtime.Status;
+import org.fortiss.tooling.kernel.extension.base.DialogMessage;
+import org.fortiss.tooling.kernel.extension.base.DialogMessage.MSG_TYPE;
+import org.fortiss.tooling.kernel.service.ILoggingService;
 
 /**
  * Utility code for performing logging.
@@ -126,4 +129,37 @@ public class LoggingUtils {
 	public static void info(Plugin plugin, String message) {
 		info(plugin, message, null);
 	}
+
+	/**
+	 * Presents an error dialog to the user.
+	 * 
+	 * @param message
+	 *            to be displayed.
+	 */
+	public static void showError(String message) {
+		ILoggingService.getInstance().processMessage(new DialogMessage(message, MSG_TYPE.ERROR),
+				null);
+	}
+
+	/**
+	 * Presents a warning dialog to the user.
+	 * 
+	 * @param message
+	 *            to be displayed.
+	 */
+	public static void showWarning(String message) {
+		ILoggingService.getInstance().processMessage(new DialogMessage(message, MSG_TYPE.WARNING),
+				null);
+	}
+
+	/**
+	 * Presents a warning dialog to the user.
+	 * 
+	 * @param message
+	 *            to be displayed.
+	 */
+	public static void showInfo(String message) {
+		ILoggingService.getInstance()
+				.processMessage(new DialogMessage(message, MSG_TYPE.INFORMATION), null);
+	}
 }