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/*******************************************************************************
* Copyright (c) 2000, 2006 IBM Corporation and others.
*
* This program and the accompanying materials
* are made available under the terms of the Eclipse Public License 2.0
* which accompanies this distribution, and is available at
* https://www.eclipse.org/legal/epl-2.0/
*
* SPDX-License-Identifier: EPL-2.0
*
* Contributors:
* IBM Corporation - initial API and implementation
*******************************************************************************/
package org.eclipse.team.internal.core.subscribers;
import org.eclipse.core.resources.IResource;
import org.eclipse.core.runtime.IProgressMonitor;
import org.eclipse.team.core.TeamException;
import org.eclipse.team.core.synchronize.FastSyncInfoFilter;
import org.eclipse.team.core.synchronize.SyncInfo;
import org.eclipse.team.core.synchronize.SyncInfoFilter;
import org.eclipse.team.internal.core.Policy;
/**
* This is the superclass for all SyncSet input providers
*/
public abstract class SyncSetInput {
private SubscriberSyncInfoSet syncSet;
private SyncInfoFilter filter = new FastSyncInfoFilter();
public SyncSetInput(SubscriberEventHandler handler) {
syncSet = new SubscriberSyncInfoSet(handler);
}
public SubscriberSyncInfoSet getSyncSet() {
return syncSet;
}
/**
* This method is invoked from reset to get all the sync information from
* the input source.
*/
protected abstract void fetchInput(IProgressMonitor monitor) throws TeamException;
/**
* The input is no longer being used. Disconnect it from its source.
*/
public abstract void disconnect();
/**
* Reset the input. This will clear the current contents of the sync set and
* obtain the contents from the input source.
*/
public void reset(IProgressMonitor monitor) throws TeamException {
try {
syncSet.beginInput();
monitor = Policy.monitorFor(monitor);
monitor.beginTask(null, 100);
syncSet.clear();
fetchInput(Policy.subMonitorFor(monitor, 90));
} finally {
syncSet.endInput(Policy.subMonitorFor(monitor, 10));
monitor.done();
}
}
/**
* Collect the change in the provided sync info.
*/
protected void collect(SyncInfo info, IProgressMonitor monitor) {
boolean isOutOfSync = filter.select(info, monitor);
SyncInfo oldInfo = syncSet.getSyncInfo(info.getLocal());
boolean wasOutOfSync = oldInfo != null;
if (isOutOfSync) {
syncSet.add(info);
} else if (wasOutOfSync) {
syncSet.remove(info.getLocal());
}
}
protected void remove(IResource resource) {
SyncInfo oldInfo = syncSet.getSyncInfo(resource);
if (oldInfo != null) {
syncSet.remove(resource);
}
}
public SyncInfoFilter getFilter() {
return filter;
}
public void setFilter(SyncInfoFilter filter) {
this.filter = filter;
}
}
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