/**
* The refresh itself.
*
* @param bDeepScan whether it is a deep refresh request or only fast
* @param bManual whether it is a manual refresh or auto
* @param dirsToRefresh list of the directory to refresh, null if all of them
* @return true if some changes occurred in device
*/
boolean refreshCommand(
final boolean bDeepScan, final boolean bManual, List<Directory> dirsToRefresh) {
try {
// Check if this device is mounted (useful when called by
// automatic refresh)
if (!isMounted()) {
return false;
}
// Check that device is still available
boolean readyToMount = checkDevice();
if (!readyToMount) {
return false;
}
bAlreadyRefreshing = true;
// reporter is already set in case of manual refresh
if (reporter == null) {
reporter = new RefreshReporter(this);
}
// Notify the reporter of the actual refresh startup
reporter.refreshStarted();
lDateLastRefresh = System.currentTimeMillis();
// check Jajuk is not exiting because a refresh cannot start in
// this state
if (ExitService.isExiting()) {
return false;
}
int iNbFilesBeforeRefresh = FileManager.getInstance().getElementCount();
int iNbDirsBeforeRefresh = DirectoryManager.getInstance().getElementCount();
int iNbPlaylistsBeforeRefresh = PlaylistManager.getInstance().getElementCount();
if (bDeepScan && Log.isDebugEnabled()) {
Log.debug("Starting refresh of device : " + this);
}
// Create a directory for device itself and scan files to allow
// files at the root of the device
final Directory top = DirectoryManager.getInstance().registerDirectory(this);
if (!getDirectories().contains(top)) {
addDirectory(top);
}
// Start actual scan
List<Directory> dirs = null;
if (dirsToRefresh == null) {
// No directory specified ? refresh the top directory
dirs = new ArrayList<Directory>(1);
dirs.add(top);
} else {
dirs = dirsToRefresh;
}
for (Directory dir : dirs) {
scanRecursively(dir, bDeepScan);
}
// Force a GUI refresh if new files or directories discovered or have been
// removed
if (((FileManager.getInstance().getElementCount() - iNbFilesBeforeRefresh) != 0)
|| ((DirectoryManager.getInstance().getElementCount() - iNbDirsBeforeRefresh) != 0)
|| ((PlaylistManager.getInstance().getElementCount() - iNbPlaylistsBeforeRefresh) != 0)) {
return true;
}
return false;
} catch (final Exception e) {
// and regular ones logged
Log.error(e);
return false;
} finally {
// make sure to unlock refreshing even if an error occurred
bAlreadyRefreshing = false;
// reporter is null if mount is not mounted due to early return
if (reporter != null) {
// Notify the reporter of the actual refresh startup
reporter.done();
// Reset the reporter as next time, it could be another type
reporter = null;
}
}
}
