/** Perform cleanup of the trash directory. */
private void delete() {
IgfsFileInfo info = null;
try {
info = meta.info(TRASH_ID);
} catch (ClusterTopologyServerNotFoundException e) {
LT.warn(log, e, "Server nodes not found.");
} catch (IgniteCheckedException e) {
U.error(log, "Cannot obtain trash directory info.", e);
}
if (info != null) {
for (Map.Entry<String, IgfsListingEntry> entry : info.listing().entrySet()) {
IgniteUuid fileId = entry.getValue().fileId();
if (log.isDebugEnabled())
log.debug(
"Deleting IGFS trash entry [name=" + entry.getKey() + ", fileId=" + fileId + ']');
try {
if (!cancelled) {
if (delete(entry.getKey(), fileId)) {
if (log.isDebugEnabled())
log.debug(
"Sending delete confirmation message [name="
+ entry.getKey()
+ ", fileId="
+ fileId
+ ']');
sendDeleteMessage(new IgfsDeleteMessage(fileId));
}
} else break;
} catch (IgniteInterruptedCheckedException ignored) {
// Ignore this exception while stopping.
} catch (IgniteCheckedException e) {
U.error(log, "Failed to delete entry from the trash directory: " + entry.getKey(), e);
sendDeleteMessage(new IgfsDeleteMessage(fileId, e));
}
}
}
}
/**
* Remove particular entry from the TRASH directory.
*
* @param name Entry name.
* @param id Entry ID.
* @return {@code True} in case the entry really was deleted form the file system by this call.
* @throws IgniteCheckedException If failed.
*/
private boolean delete(String name, IgniteUuid id) throws IgniteCheckedException {
assert name != null;
assert id != null;
while (true) {
IgfsFileInfo info = meta.info(id);
if (info != null) {
if (info.isDirectory()) {
deleteDirectory(TRASH_ID, id);
if (meta.delete(TRASH_ID, name, id)) return true;
} else {
assert info.isFile();
// Delete file content first.
// In case this node crashes, other node will re-delete the file.
data.delete(info).get();
boolean ret = meta.delete(TRASH_ID, name, id);
if (evts.isRecordable(EVT_IGFS_FILE_PURGED)) {
if (info.path() != null)
evts.record(
new IgfsEvent(
info.path(),
igfsCtx.kernalContext().discovery().localNode(),
EVT_IGFS_FILE_PURGED));
else LT.warn(log, null, "Removing file without path info: " + info);
}
return ret;
}
} else return false; // Entry was deleted concurrently.
}
}