Examples with UnexpectedAlluxioException alluxio.exception.UnexpectedAlluxioException used on opensource projects

Example 1 with UnexpectedAlluxioException

use of alluxio.exception.UnexpectedAlluxioException in project alluxio by Alluxio.

the class FileSystemMaster method freeAndJournal.

/**
   * Implements free operation.
   * <p>
   * This may write to the journal as free operation may change the pinned state of inodes.
   *
   * @param inodePath inode of the path to free
   * @param options options to free
   * @param journalContext the journal context
   * @throws FileDoesNotExistException if the file does not exist
   * @throws AccessControlException if permission checking fails
   * @throws InvalidPathException if the given path is invalid
   * @throws UnexpectedAlluxioException if the file or directory can not be freed
   */
private void freeAndJournal(LockedInodePath inodePath, FreeOptions options, JournalContext journalContext) throws FileDoesNotExistException, UnexpectedAlluxioException, AccessControlException, InvalidPathException {
    Inode<?> inode = inodePath.getInode();
    if (inode.isDirectory() && !options.isRecursive() && ((InodeDirectory) inode).getNumberOfChildren() > 0) {
        // inode is nonempty, and we don't free a nonempty directory unless recursive is true
        throw new UnexpectedAlluxioException(ExceptionMessage.CANNOT_FREE_NON_EMPTY_DIR.getMessage(mInodeTree.getPath(inode)));
    }
    long opTimeMs = System.currentTimeMillis();
    List<Inode<?>> freeInodes = new ArrayList<>();
    freeInodes.add(inode);
    try (InodeLockList lockList = mInodeTree.lockDescendants(inodePath, InodeTree.LockMode.WRITE)) {
        freeInodes.addAll(lockList.getInodes());
        TempInodePathForDescendant tempInodePath = new TempInodePathForDescendant(inodePath);
        // We go through each inode.
        for (int i = freeInodes.size() - 1; i >= 0; i--) {
            Inode<?> freeInode = freeInodes.get(i);
            if (freeInode.isFile()) {
                if (freeInode.getPersistenceState() != PersistenceState.PERSISTED) {
                    throw new UnexpectedAlluxioException(ExceptionMessage.CANNOT_FREE_NON_PERSISTED_FILE.getMessage(mInodeTree.getPath(freeInode)));
                }
                if (freeInode.isPinned()) {
                    if (!options.isForced()) {
                        throw new UnexpectedAlluxioException(ExceptionMessage.CANNOT_FREE_PINNED_FILE.getMessage(mInodeTree.getPath(freeInode)));
                    }
                    // the path to inode for getPath should already be locked.
                    tempInodePath.setDescendant(freeInode, mInodeTree.getPath(freeInode));
                    SetAttributeOptions setAttributeOptions = SetAttributeOptions.defaults().setRecursive(false).setPinned(false);
                    setAttributeInternal(tempInodePath, false, opTimeMs, setAttributeOptions);
                    journalSetAttribute(tempInodePath, opTimeMs, setAttributeOptions, journalContext);
                }
                // Remove corresponding blocks from workers.
                mBlockMaster.removeBlocks(((InodeFile) freeInode).getBlockIds(), false);
            }
        }
    }
    Metrics.FILES_FREED.inc(freeInodes.size());
}