/**
* Manual refresh, displays a dialog.
*
* @param bAsk ask for refreshing type (deep or fast ?)
* @param bAfterMove is this refresh done after a device location change ?
* @param forcedDeep : override bAsk and force a deep refresh
* @param dirsToRefresh : only refresh specified dirs, or all of them if null
*/
public void manualRefresh(
final boolean bAsk,
final boolean bAfterMove,
final boolean forcedDeep,
List<Directory> dirsToRefresh) {
int i = 0;
try {
i = prepareRefresh(bAsk);
if (i == OPTION_REFRESH_CANCEL) {
return;
}
bAlreadyRefreshing = true;
} catch (JajukException je) {
Messages.showErrorMessage(je.getCode());
Log.debug(je);
return;
}
try {
reporter = new ManualDeviceRefreshReporter(this);
reporter.startup();
// clean old files up (takes a while)
if (!bAfterMove) {
cleanRemovedFiles(dirsToRefresh);
}
reporter.cleanupDone();
// Actual refresh
refreshCommand(((i == Device.OPTION_REFRESH_DEEP) || forcedDeep), true, dirsToRefresh);
// cleanup logical items
org.jajuk.base.Collection.cleanupLogical();
// if it is a move, clean old files *after* the refresh
if (bAfterMove) {
cleanRemovedFiles(dirsToRefresh);
}
// notify views to refresh
ObservationManager.notify(new JajukEvent(JajukEvents.DEVICE_REFRESH));
// Commit collection at each refresh (can be useful if
// application
// is closed brutally with control-C or shutdown and that
// exit hook has no time to perform commit).
// But don't commit when any device is refreshing to avoid collisions.
if (!DeviceManager.getInstance().isAnyDeviceRefreshing()) {
try {
org.jajuk.base.Collection.commit(SessionService.getConfFileByPath(Const.FILE_COLLECTION));
} catch (final IOException e) {
Log.error(e);
}
}
} finally {
// Do not let current reporter as a manual reporter because it would fail
// in NPE with auto-refresh
reporter = null;
// Make sure to unlock refreshing
bAlreadyRefreshing = false;
}
}
/**
* Walk through tall Files and remove the ones for the current device.
*
* @param dirsToRefresh list of the directory to refresh, null if all of them
* @return true if there was any file removed.
*/
private boolean cleanFiles(List<Directory> dirsToRefresh) {
boolean bChanges = false;
final List<org.jajuk.base.File> files = FileManager.getInstance().getFiles();
for (final org.jajuk.base.File file : files) {
// check if it is a file located inside refreshed directory
if (dirsToRefresh != null) {
boolean checkIt = false;
for (Directory directory : dirsToRefresh) {
if (file.hasAncestor(directory)) {
checkIt = true;
}
}
// This item is not in given directories, just continue
if (!checkIt) {
continue;
}
}
if (!ExitService.isExiting()
&& file.getDirectory().getDevice().equals(this)
&& file.isReady()
&&
// Remove file if it doesn't exist any more or if it is a iTunes
// file (useful for jajuk < 1.4)
(!file.getFIO().exists() || file.getName().startsWith("._"))) {
FileManager.getInstance().removeFile(file);
Log.debug("Removed: " + file);
bChanges = true;
if (reporter != null) {
reporter.notifyFileOrPlaylistDropped();
}
}
}
return bChanges;
}
/**
* Walk through all Playlists and remove the ones for the current device.
*
* @param dirsToRefresh list of the directory to refresh, null if all of them
* @return true if there was any playlist removed
*/
private boolean cleanPlaylist(List<Directory> dirsToRefresh) {
boolean bChanges = false;
final List<Playlist> plfiles = PlaylistManager.getInstance().getPlaylists();
for (final Playlist plf : plfiles) {
// check if it is a playlist located inside refreshed directory
if (dirsToRefresh != null) {
boolean checkIt = false;
for (Directory directory : dirsToRefresh) {
if (plf.hasAncestor(directory)) {
checkIt = true;
}
}
// This item is not in given directories, just continue
if (!checkIt) {
continue;
}
}
if (!ExitService.isExiting()
&& plf.getDirectory().getDevice().equals(this)
&& plf.isReady()
&& !plf.getFIO().exists()) {
PlaylistManager.getInstance().removeItem(plf);
Log.debug("Removed: " + plf);
if (reporter != null) {
reporter.notifyFileOrPlaylistDropped();
}
bChanges = true;
}
}
return bChanges;
}
/**
* Scan recursively.
*
* @param dir top directory to scan
* @param bDeepScan whether we want to perform a deep scan (read tags again)
*/
private void scanRecursively(final Directory dir, final boolean bDeepScan) {
dir.scan(bDeepScan, reporter);
if (reporter != null) {
reporter.updateState(dir);
}
final File[] files = dir.getFio().listFiles(UtilSystem.getDirFilter());
if (files != null) {
for (final File element : files) {
// Leave ASAP if exit request
if (ExitService.isExiting()) {
return;
}
final Directory subDir =
DirectoryManager.getInstance().registerDirectory(element.getName(), dir, this);
scanRecursively(subDir, bDeepScan);
}
}
}
/**
* 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;
}
}
}
