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/*******************************************************************************
* Copyright (c) 2004 - 2006 University Of British Columbia 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:
* University Of British Columbia - initial API and implementation
*******************************************************************************/
package org.eclipse.mylyn.internal.tasks.ui;
import java.util.Collections;
import java.util.Date;
import java.util.HashSet;
import java.util.Set;
import org.eclipse.core.runtime.CoreException;
import org.eclipse.core.runtime.IProgressMonitor;
import org.eclipse.core.runtime.IStatus;
import org.eclipse.core.runtime.Platform;
import org.eclipse.core.runtime.Status;
import org.eclipse.core.runtime.SubProgressMonitor;
import org.eclipse.core.runtime.jobs.Job;
import org.eclipse.mylyn.monitor.core.DateUtil;
import org.eclipse.mylyn.monitor.core.StatusHandler;
import org.eclipse.mylyn.tasks.core.AbstractRepositoryConnector;
import org.eclipse.mylyn.tasks.core.AbstractRepositoryQuery;
import org.eclipse.mylyn.tasks.core.AbstractTask;
import org.eclipse.mylyn.tasks.core.QueryHitCollector;
import org.eclipse.mylyn.tasks.core.TaskList;
import org.eclipse.mylyn.tasks.core.TaskRepository;
import org.eclipse.mylyn.tasks.core.AbstractTask.RepositoryTaskSyncState;
import org.eclipse.mylyn.tasks.ui.TasksUiPlugin;
import org.eclipse.ui.PlatformUI;
import org.eclipse.ui.progress.IProgressConstants;
/**
* @author Mik Kersten
* @author Rob Elves
* @author Steffen Pingel
*/
class SynchronizeQueryJob extends Job {
private final AbstractRepositoryConnector connector;
private final TaskRepository repository;
private final Set<AbstractRepositoryQuery> queries;
private final TaskList taskList;
private boolean synchronizeChangedTasks;
private boolean forced = false;
private HashSet<AbstractTask> tasksToBeSynchronized = new HashSet<AbstractTask>();
public SynchronizeQueryJob(AbstractRepositoryConnector connector, TaskRepository repository,
Set<AbstractRepositoryQuery> queries, TaskList taskList) {
super("Synchronizying queries for " + repository.getRepositoryLabel());
this.connector = connector;
this.repository = repository;
this.queries = queries;
this.taskList = taskList;
}
public void setSynchronizeChangedTasks(boolean synchronizeChangedTasks) {
this.synchronizeChangedTasks = synchronizeChangedTasks;
}
/**
* Returns true, if synchronization was triggered manually and not by an automatic background job.
*/
public boolean isForced() {
return forced;
}
/**
* Indicates a manual synchronization (User initiated). If set to true, a dialog will be displayed in case of
* errors. Any tasks with missing data will be retrieved.
*/
public void setForced(boolean forced) {
this.forced = forced;
}
@Override
protected IStatus run(IProgressMonitor monitor) {
try {
monitor.beginTask("Synchronizing " + queries.size() + " queries", 20 + queries.size() * 10 + 40);
Set<AbstractTask> allTasks = Collections.unmodifiableSet(taskList.getRepositoryTasks(repository.getUrl()));
// check if the repository has changed at all and have the connector mark tasks that need synchronization
try {
monitor.subTask("Checking for changed tasks");
boolean hasChangedOrNew = connector.markStaleTasks(repository, allTasks,
new SubProgressMonitor(monitor, 20));
if (!hasChangedOrNew && !forced) {
updateQueryStatus(null);
return Status.OK_STATUS;
}
} catch (CoreException e) {
// synchronization is unlikely to succeed, inform user and exit
updateQueryStatus(e.getStatus());
return Status.OK_STATUS;
}
// synchronize queries, tasks changed within query are added to set of tasks to be synchronized
int n = 0;
for (AbstractRepositoryQuery repositoryQuery : queries) {
repositoryQuery.setSynchronizationStatus(null);
monitor.setTaskName("Synchronizing " + ++n + "/" + queries.size() + ": " + repositoryQuery.getSummary());
synchronizeQuery(repositoryQuery, new SubProgressMonitor(monitor, 10));
repositoryQuery.setSynchronizing(false);
taskList.notifyContainersUpdated(Collections.singleton(repositoryQuery));
}
// for background synchronizations all changed tasks are synchronized including the ones that are not part of a query
if (!forced) {
for (AbstractTask task : allTasks) {
if (task.isStale()) {
tasksToBeSynchronized.add(task);
task.setSynchronizing(true);
}
}
}
// synchronize tasks that were marked by the connector
if (!tasksToBeSynchronized.isEmpty()) {
monitor.setTaskName("Synchronizing " + tasksToBeSynchronized.size() + " changed tasks");
SynchronizeTaskJob job = new SynchronizeTaskJob(connector, tasksToBeSynchronized);
job.setForced(forced);
job.run(new SubProgressMonitor(monitor, 40));
if (Platform.isRunning() && !(TasksUiPlugin.getRepositoryManager() == null)) {
TasksUiPlugin.getRepositoryManager().setSynchronizationTime(repository,
connector.getSynchronizationTimestamp(repository, tasksToBeSynchronized),
TasksUiPlugin.getDefault().getRepositoriesFilePath());
}
}
taskList.notifyContainersUpdated(null);
return Status.OK_STATUS;
} finally {
monitor.done();
}
}
private void updateQueryStatus(final IStatus status) {
for (AbstractRepositoryQuery repositoryQuery : queries) {
repositoryQuery.setSynchronizationStatus(status);
repositoryQuery.setSynchronizing(false);
}
taskList.notifyContainersUpdated(queries);
if (status != null && isForced()) {
PlatformUI.getWorkbench().getDisplay().asyncExec(new Runnable() {
public void run() {
StatusHandler.displayStatus("Query Synchronization Failed", status);
}
});
}
}
private void synchronizeQuery(AbstractRepositoryQuery repositoryQuery, IProgressMonitor monitor) {
setProperty(IProgressConstants.ICON_PROPERTY, TasksUiImages.REPOSITORY_SYNCHRONIZE);
QueryHitCollector collector = new QueryHitCollector(new TaskFactory(repository, true, false));
final IStatus resultingStatus = connector.performQuery(repositoryQuery, repository, monitor, collector);
if (resultingStatus.getSeverity() == IStatus.CANCEL) {
// do nothing
} else if (resultingStatus.isOK()) {
if (collector.getTasks().size() >= QueryHitCollector.MAX_HITS) {
StatusHandler.log(QueryHitCollector.MAX_HITS_REACHED + "\n" + repositoryQuery.getSummary(), this);
}
repositoryQuery.clear();
for (AbstractTask hit : collector.getTasks()) {
AbstractTask task = taskList.getTask(hit.getHandleIdentifier());
if (task != null) {
// update the existing task from the query hit
boolean changed = connector.updateTaskFromQueryHit(repository, task, hit);
if (changed && !task.isStale() && task.getSynchronizationState() == RepositoryTaskSyncState.SYNCHRONIZED) {
// set incoming marker for web tasks
task.setSynchronizationState(RepositoryTaskSyncState.INCOMING);
}
} else {
// new tasks are marked stale by default
task = hit;
task.setStale(true);
task.setSynchronizationState(RepositoryTaskSyncState.INCOMING);
}
taskList.addTask(task, repositoryQuery);
if (synchronizeChangedTasks && task.isStale()) {
tasksToBeSynchronized.add(task);
task.setSynchronizing(true);
}
}
repositoryQuery.setLastSynchronizedStamp(DateUtil.getFormattedDate(new Date(), "MMM d, H:mm:ss"));
} else {
repositoryQuery.setSynchronizationStatus(resultingStatus);
if (isForced()) {
PlatformUI.getWorkbench().getDisplay().asyncExec(new Runnable() {
public void run() {
StatusHandler.displayStatus("Query Synchronization Failed", resultingStatus);
}
});
}
}
}
}
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