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/*******************************************************************************
* 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.core.data;
import java.util.Set;
import org.eclipse.core.runtime.Assert;
import org.eclipse.core.runtime.CoreException;
import org.eclipse.core.runtime.IProgressMonitor;
import org.eclipse.mylyn.tasks.core.ITask;
import org.eclipse.mylyn.tasks.core.data.ITaskDataWorkingCopy;
import org.eclipse.mylyn.tasks.core.data.TaskAttribute;
import org.eclipse.mylyn.tasks.core.data.TaskData;
/**
* @author Rob Elves
* @author Steffen Pingel
*/
public class TaskDataState implements ITaskDataWorkingCopy {
private final String connectorKind;
private TaskData editsTaskData;
private TaskData lastReadTaskData;
private TaskData localTaskData;
private boolean saved;
private TaskData repositoryTaskData;
private final String repositoryUrl;
private ITask task;
private final String taskId;
private TaskDataManager taskDataManager;
public TaskDataState(String connectorKind, String repositoryUrl, String taskId) {
Assert.isNotNull(connectorKind);
Assert.isNotNull(repositoryUrl);
Assert.isNotNull(taskId);
this.connectorKind = connectorKind;
this.repositoryUrl = repositoryUrl;
this.taskId = taskId;
this.saved = true;
}
@Override
public boolean equals(Object obj) {
if (this == obj) {
return true;
}
if (obj == null) {
return false;
}
if (getClass() != obj.getClass()) {
return false;
}
TaskDataState other = (TaskDataState) obj;
return connectorKind.equals(other.connectorKind) && repositoryUrl.equals(other.repositoryUrl)
&& taskId.equals(other.taskId);
}
public String getConnectorKind() {
return connectorKind;
}
public TaskData getEditsData() {
return editsTaskData;
}
public TaskData getLastReadData() {
return lastReadTaskData;
}
public TaskData getLocalData() {
return localTaskData;
}
public TaskData getRepositoryData() {
return repositoryTaskData;
}
public String getRepositoryUrl() {
return repositoryUrl;
}
public String getTaskId() {
return taskId;
}
@Override
public int hashCode() {
final int prime = 31;
int result = 1;
result = prime * result + connectorKind.hashCode();
result = prime * result + taskId.hashCode();
result = prime * result + repositoryUrl.hashCode();
return result;
}
void init(TaskDataManager taskSynchronizationManager, ITask task) {
this.taskDataManager = taskSynchronizationManager;
this.task = task;
}
public boolean isSaved() {
return saved;
}
public void refresh(IProgressMonitor monitor) throws CoreException {
ITaskDataWorkingCopy state = taskDataManager.getWorkingCopy(task);
setRepositoryData(state.getRepositoryData());
setEditsData(state.getEditsData());
setLastReadData(state.getLastReadData());
revert();
}
public void revert() {
localTaskData = new TaskData(repositoryTaskData.getAttributeMapper(), repositoryTaskData.getConnectorKind(),
repositoryTaskData.getRepositoryUrl(), repositoryTaskData.getTaskId());
localTaskData.setVersion(repositoryTaskData.getVersion());
deepCopyChildren(repositoryTaskData.getRoot(), localTaskData.getRoot());
if (editsTaskData != null) {
deepCopyChildren(editsTaskData.getRoot(), localTaskData.getRoot());
} else {
editsTaskData = new TaskData(repositoryTaskData.getAttributeMapper(),
repositoryTaskData.getConnectorKind(), repositoryTaskData.getRepositoryUrl(),
repositoryTaskData.getTaskId());
editsTaskData.setVersion(repositoryTaskData.getVersion());
}
}
private void deepCopyChildren(TaskAttribute source, TaskAttribute target) {
for (TaskAttribute child : source.getAttributes().values()) {
target.deepAddCopy(child);
}
}
public void save(Set<TaskAttribute> edits, IProgressMonitor monitor) throws CoreException {
if (edits != null) {
for (TaskAttribute edit : edits) {
editsTaskData.getRoot().deepAddCopy(edit);
}
}
if (saved) {
taskDataManager.putEdits(task, editsTaskData);
} else {
taskDataManager.saveWorkingCopy(task, this);
setSaved(true);
}
}
public void setEditsData(TaskData editsTaskData) {
this.editsTaskData = editsTaskData;
}
public void setLastReadData(TaskData oldTaskData) {
this.lastReadTaskData = oldTaskData;
}
public void setLocalTaskData(TaskData localTaskData) {
this.localTaskData = localTaskData;
}
void setSaved(boolean saved) {
this.saved = saved;
}
public void setRepositoryData(TaskData newTaskData) {
this.repositoryTaskData = newTaskData;
}
public void merge(TaskDataState oldState) {
setEditsData(createCopy(oldState.getEditsData()));
setLocalTaskData(createCopy(oldState.getLocalData()));
setRepositoryData(createCopy(oldState.getRepositoryData()));
}
private TaskData createCopy(TaskData oldData) {
if (oldData == null) {
return null;
}
TaskData newData = new TaskData(oldData.getAttributeMapper(), getConnectorKind(), getRepositoryUrl(),
getTaskId());
newData.setVersion(oldData.getVersion());
for (TaskAttribute child : oldData.getRoot().getAttributes().values()) {
newData.getRoot().deepAddCopy(child);
}
return newData;
}
}
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