plugins/org.eclipse.osee.ats.core.client/src/org/eclipse/osee/ats/core/client/task/TaskMover.java

/*******************************************************************************
 * Copyright (c) 2015 Boeing.
 * All rights reserved. This program and the accompanying materials
 * are made available under the terms of the Eclipse Public License v1.0
 * which accompanies this distribution, and is available at
 * http://www.eclipse.org/legal/epl-v10.html
 *
 * Contributors:
 *     Boeing - initial API and implementation
 *******************************************************************************/
package org.eclipse.osee.ats.core.client.task;

import java.util.List;
import org.eclipse.osee.ats.api.data.AtsRelationTypes;
import org.eclipse.osee.ats.api.util.IAtsChangeSet;
import org.eclipse.osee.ats.api.workdef.IAtsWorkDefinitionAdmin;
import org.eclipse.osee.ats.api.workdef.IWorkDefinitionMatch;
import org.eclipse.osee.ats.api.workflow.IAtsTask;
import org.eclipse.osee.ats.api.workflow.IAtsTeamWorkflow;
import org.eclipse.osee.ats.core.client.util.AtsChangeSet;
import org.eclipse.osee.framework.core.util.Result;
import org.eclipse.osee.framework.jdk.core.type.OseeCoreException;

/**
 * @author Donald G. Dunne
 */
public class TaskMover {

   private final IAtsTeamWorkflow newParent;
   private final List<? extends IAtsTask> tasks;
   private final IAtsWorkDefinitionAdmin workDefinitionAdmin;

   public TaskMover(IAtsWorkDefinitionAdmin workDefinitionAdmin, IAtsTeamWorkflow newParent, List<? extends IAtsTask> tasks) {
      this.workDefinitionAdmin = workDefinitionAdmin;
      this.newParent = newParent;
      this.tasks = tasks;
   }

   public Result moveTasks() throws OseeCoreException {
      Result result = validate();
      if (result.isFalse()) {
         return result;
      }

      // Move Tasks
      IAtsChangeSet changes = new AtsChangeSet("Drop Add Tasks");
      for (IAtsTask task : tasks) {
         TaskArtifact taskArt = (TaskArtifact) task;
         taskArt.clearCaches();
         if (taskArt.getParentAWA() != null) {
            changes.unrelateAll(taskArt, AtsRelationTypes.TeamWfToTask_TeamWf);
         }
         changes.relate(newParent, AtsRelationTypes.TeamWfToTask_Task, taskArt);
         taskArt.clearCaches();
      }
      if (!changes.isEmpty()) {
         changes.execute();
      }
      return Result.TrueResult;
   }

   public Result validate() {
      for (IAtsTask task : tasks) {
         // task dropped on same awa as current parent; do nothing
         if (task.getParentTeamWorkflow().getUuid().equals(newParent.getUuid())) {
            return new Result("Source and Destination workflows are the same; Move Aborted");
         }

         // Validate able to move tasks; WorkDefinitions must match
         boolean taskOverridesItsWorkDefinition = workDefinitionAdmin.isTaskOverridingItsWorkDefinition(task);
         IWorkDefinitionMatch match = workDefinitionAdmin.getWorkDefinitionForTaskNotYetCreated(newParent);
         if (!taskOverridesItsWorkDefinition && !task.getWorkDefinition().equals(match.getWorkDefinition())) {
            return new Result(
               "Desitination Task WorkDefinition does not match current Task WorkDefintion; Move Aborted");
         }
      }
      return Result.TrueResult;
   }

}