| /******************************************************************************* |
| * Copyright (c) 2004, 2008 Tasktop Technologies and others. |
| * 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: |
| * Tasktop Technologies - initial API and implementation |
| *******************************************************************************/ |
| |
| package org.eclipse.mylyn.internal.tasks.ui.notifications; |
| |
| import java.util.ArrayList; |
| import java.util.Collections; |
| import java.util.List; |
| |
| import org.eclipse.core.runtime.Assert; |
| import org.eclipse.mylyn.tasks.core.data.TaskAttribute; |
| |
| /** |
| * @author Steffen Pingel |
| */ |
| public class TaskAttributeDiff { |
| |
| private String attributeId; |
| |
| private final TaskAttribute newAttribute; |
| |
| private final List<String> newValues; |
| |
| private final TaskAttribute oldAttribute; |
| |
| private final List<String> oldValues; |
| |
| public TaskAttributeDiff(TaskAttribute oldAttribute, TaskAttribute newAttribute) { |
| Assert.isTrue(oldAttribute != null || newAttribute != null); |
| this.oldAttribute = oldAttribute; |
| this.newAttribute = newAttribute; |
| if (oldAttribute != null) { |
| this.oldValues = oldAttribute.getTaskData().getAttributeMapper().getValueLabels(oldAttribute); |
| this.attributeId = oldAttribute.getId(); |
| } else { |
| this.oldValues = Collections.emptyList(); |
| } |
| if (newAttribute != null) { |
| this.newValues = newAttribute.getTaskData().getAttributeMapper().getValueLabels(newAttribute); |
| this.attributeId = newAttribute.getId(); |
| } else { |
| this.newValues = Collections.emptyList(); |
| } |
| } |
| |
| @Override |
| public boolean equals(Object obj) { |
| if (this == obj) { |
| return true; |
| } |
| if (obj == null) { |
| return false; |
| } |
| if (getClass() != obj.getClass()) { |
| return false; |
| } |
| TaskAttributeDiff other = (TaskAttributeDiff) obj; |
| if (attributeId == null) { |
| if (other.attributeId != null) { |
| return false; |
| } |
| } else if (!attributeId.equals(other.attributeId)) { |
| return false; |
| } |
| return true; |
| } |
| |
| public List<String> getAddedValues() { |
| List<String> result = new ArrayList<String>(getNewValues()); |
| if (getOldValues() != null) { |
| result.removeAll(getOldValues()); |
| } |
| return result; |
| } |
| |
| public TaskAttribute getNewAttribute() { |
| return newAttribute; |
| } |
| |
| public List<String> getNewValues() { |
| return newValues; |
| } |
| |
| public TaskAttribute getOldAttribute() { |
| return oldAttribute; |
| } |
| |
| public List<String> getOldValues() { |
| return oldValues; |
| } |
| |
| public List<String> getRemovedValues() { |
| List<String> result = new ArrayList<String>(getOldValues()); |
| if (getNewValues() != null) { |
| result.removeAll(getNewValues()); |
| } |
| return result; |
| } |
| |
| public boolean hasChanges() { |
| return !oldValues.equals(newValues); |
| } |
| |
| @Override |
| public int hashCode() { |
| final int prime = 31; |
| int result = 1; |
| result = prime * result + ((attributeId == null) ? 0 : attributeId.hashCode()); |
| return result; |
| } |
| |
| public String getLabel() { |
| if (newAttribute != null) { |
| return newAttribute.getTaskData().getAttributeMapper().getLabel(newAttribute); |
| } else { |
| return oldAttribute.getTaskData().getAttributeMapper().getLabel(oldAttribute); |
| } |
| } |
| } |