moves the corresponding utility methods (after generalizing them)

refs 2708

org.fortiss.tooling.base.ui/trunk/src/org/fortiss/tooling/base/ui/utils/ConstraintsBaseUIUtils.java

+/*--------------------------------------------------------------------------+
+$Id$
+|                                                                          |
+| Copyright 2016 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.base.ui.utils;
+
+import static org.fortiss.tooling.base.utils.ConstraintsBaseUtils.getActiveConstraintsTransitively;
+
+import java.util.List;
+
+import org.fortiss.tooling.base.model.element.ConstraintConfiguration;
+import org.fortiss.tooling.base.model.element.IConstraintBasedProcess;
+import org.fortiss.tooling.kernel.extension.IConstraint;
+import org.fortiss.tooling.kernel.model.constraints.IConstraintInstanceContainer;
+import org.fortiss.tooling.kernel.ui.service.IConstraintUIService;
+
+/**
+ * Utility methods related to constraints.
+ * 
+ * @author aravantinos
+ * @author $Author$
+ * @version $Rev$
+ * @ConQAT.Rating YELLOW Hash: 364E3DB6782217410744A36167874C40
+ */
+public class ConstraintsBaseUIUtils {
+
+	/** Factorized behaviour. */
+	public static void doActivateAll(IConstraintInstanceContainer cstrContainer,
+			IConstraintBasedProcess cbdProcess) {
+		// First activate the constraints which should always be activated
+		for(Class<? extends IConstraint> cstrClass : IConstraintUIService.getInstance()
+				.getAlwaysActivatedConstraints()) {
+			IConstraintUIService.getInstance().activate(cstrClass, cstrContainer);
+		}
+		// Then activate the constraints of the current objective
+		ConstraintConfiguration currentObj = cbdProcess.getCurrentObjective();
+		if(currentObj != null) {
+			List<Class<? extends IConstraint>> activeCstrs =
+					getActiveConstraintsTransitively(currentObj, null);
+			for(Class<? extends IConstraint> cstrClass : activeCstrs) {
+				IConstraintUIService.getInstance().activate(cstrClass, cstrContainer);
+			}
+		}
+	}
+
+	/**
+	 * Activates all constraints which are active in the given configuration, potentially adding new
+	 * constraint instances to the provided container.
+	 */
+	public static void activateConfiguration(ConstraintConfiguration config,
+			IConstraintInstanceContainer cstrContainer) {
+		for(Class<? extends IConstraint> cstr : getActiveConstraintsTransitively(config, null)) {
+			IConstraintUIService.getInstance().activate(cstr, cstrContainer);
+		}
+	}
+
+	/**
+	 * Deactivates all constraints which are active in the given configuration, if they are not
+	 * still active in the provided context.
+	 */
+	public static void deactivateConfiguration(ConstraintConfiguration config,
+			IConstraintInstanceContainer cstrContainer, ConstraintConfiguration context) {
+		List<Class<? extends IConstraint>> stillActiveConstraints =
+				getActiveConstraintsTransitively(context, config);
+		for(Class<? extends IConstraint> cstr : getActiveConstraintsTransitively(config, null)) {
+			if(!stillActiveConstraints.contains(cstr)) {
+				IConstraintUIService.getInstance().deactivate(cstr, cstrContainer);
+			}
+		}
+	}
+}