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/* This Source Code Form is subject to the terms of the Mozilla Public
* License, v. 2.0. If a copy of the MPL was not distributed with this
* file, You can obtain one at http://mozilla.org/MPL/2.0/. */
package org.mozilla.gecko.sync.repositories;
import java.util.Collection;
import java.util.Iterator;
import org.mozilla.gecko.background.common.log.Logger;
import org.mozilla.gecko.sync.repositories.delegates.RepositorySessionBeginDelegate;
import org.mozilla.gecko.sync.repositories.delegates.RepositorySessionFinishDelegate;
import org.mozilla.gecko.sync.repositories.domain.Record;
public abstract class StoreTrackingRepositorySession extends RepositorySession {
private static final String LOG_TAG = "StoreTrackSession";
protected StoreTracker storeTracker;
protected static StoreTracker createStoreTracker() {
return new HashSetStoreTracker();
}
public StoreTrackingRepositorySession(Repository repository) {
super(repository);
}
@Override
public void begin(RepositorySessionBeginDelegate delegate) throws InvalidSessionTransitionException {
RepositorySessionBeginDelegate deferredDelegate = delegate.deferredBeginDelegate(delegateQueue);
try {
super.sharedBegin();
} catch (InvalidSessionTransitionException e) {
deferredDelegate.onBeginFailed(e);
return;
}
// Or do this in your own subclass.
storeTracker = createStoreTracker();
deferredDelegate.onBeginSucceeded(this);
}
@Override
protected synchronized void trackGUID(String guid) {
if (this.storeTracker == null) {
throw new IllegalStateException("Store tracker not yet initialized!");
}
this.storeTracker.trackRecordForExclusion(guid);
}
@Override
protected synchronized void untrackGUID(String guid) {
if (this.storeTracker == null) {
throw new IllegalStateException("Store tracker not yet initialized!");
}
this.storeTracker.untrackStoredForExclusion(guid);
}
@Override
protected synchronized void untrackGUIDs(Collection<String> guids) {
if (this.storeTracker == null) {
throw new IllegalStateException("Store tracker not yet initialized!");
}
if (guids == null) {
return;
}
for (String guid : guids) {
this.storeTracker.untrackStoredForExclusion(guid);
}
}
protected void trackRecord(Record record) {
Logger.debug(LOG_TAG, "Tracking record " + record.guid +
" (" + record.lastModified + ") to avoid re-upload.");
// Future: we care about the timestamp…
trackGUID(record.guid);
}
protected void untrackRecord(Record record) {
Logger.debug(LOG_TAG, "Un-tracking record " + record.guid + ".");
untrackGUID(record.guid);
}
@Override
public Iterator<String> getTrackedRecordIDs() {
if (this.storeTracker == null) {
throw new IllegalStateException("Store tracker not yet initialized!");
}
return this.storeTracker.recordsTrackedForExclusion();
}
@Override
public void abort(RepositorySessionFinishDelegate delegate) {
this.storeTracker = null;
super.abort(delegate);
}
@Override
public void finish(RepositorySessionFinishDelegate delegate) throws InactiveSessionException {
super.finish(delegate);
this.storeTracker = null;
}
}
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