/** 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 or subdirectory. * * @param parentId Parent ID. * @param id Entry id. * @throws IgniteCheckedException If delete failed for some reason. */ private void deleteDirectory(IgniteUuid parentId, IgniteUuid id) throws IgniteCheckedException { assert parentId != null; assert id != null; while (true) { IgfsFileInfo info = meta.info(id); if (info != null) { assert info.isDirectory(); Map<String, IgfsListingEntry> listing = info.listing(); if (listing.isEmpty()) return; // Directory is empty. Map<String, IgfsListingEntry> delListing; if (listing.size() <= MAX_DELETE_BATCH) delListing = listing; else { delListing = new HashMap<>(MAX_DELETE_BATCH, 1.0f); int i = 0; for (Map.Entry<String, IgfsListingEntry> entry : listing.entrySet()) { delListing.put(entry.getKey(), entry.getValue()); if (++i == MAX_DELETE_BATCH) break; } } GridCompoundFuture<Object, ?> fut = new GridCompoundFuture<>(); // Delegate to child folders. for (IgfsListingEntry entry : delListing.values()) { if (!cancelled) { if (entry.isDirectory()) deleteDirectory(id, entry.fileId()); else { IgfsFileInfo fileInfo = meta.info(entry.fileId()); if (fileInfo != null) { assert fileInfo.isFile(); fut.add(data.delete(fileInfo)); } } } else return; } fut.markInitialized(); // Wait for data cache to delete values before clearing meta cache. try { fut.get(); } catch (IgniteFutureCancelledCheckedException ignore) { // This future can be cancelled only due to IGFS shutdown. cancelled = true; return; } // Actual delete of folder content. Collection<IgniteUuid> delIds = meta.delete(id, delListing); if (delListing == listing && delListing.size() == delIds.size()) break; // All entries were deleted. } else break; // Entry was deleted concurrently. } }