Examples with NO_STAT org.dcache.chimera.FileSystemProvider.StatCacheOption.NO_STAT used on opensource projects

Example 1 with NO_STAT

use of org.dcache.chimera.FileSystemProvider.StatCacheOption.NO_STAT in project dcache by dCache.

the class ChimeraNameSpaceProvider method setFileAttributes.

@Override
public FileAttributes setFileAttributes(Subject subject, PnfsId pnfsId, FileAttributes attr, Set<FileAttribute> acquire) throws CacheException {
    LOGGER.debug("File attributes update: {}", attr.getDefinedAttributes());
    try {
        ExtendedInode inode = new ExtendedInode(_fs, pnfsId, Subjects.isExemptFromNamespaceChecks(subject) ? NO_STAT : STAT);
        if (!Subjects.isExemptFromNamespaceChecks(subject)) {
            FileAttributes attributes = getFileAttributesForPermissionHandler(inode);
            if (_permissionHandler.canSetAttributes(subject, attributes, attr) != ACCESS_ALLOWED) {
                throw new PermissionDeniedCacheException("Access denied: " + pnfsId);
            }
        }
        /* Update the t_inodes row first (the Stat object) to acquire a FOR UPDATE / FOR NO KEY UPDATE
             * first. If the inserts into secondary table referring t_inodes would be done first, the
             * referential integrity check would obtain a FOR SHARE / FOR KEY SHARE on the t_inodes row which
             * latter would have to be upgraded (potentially leading to deadlocks if that's not possible).
             */
        Stat stat = new Stat();
        for (FileAttribute attribute : attr.getDefinedAttributes()) {
            switch(attribute) {
                case LOCATIONS:
                    // REVISIT: may be we need an explicit indication from pool
                    if (attr.isDefined(SIZE)) {
                        stat.setState(FileState.STORED);
                    }
                    break;
                case SIZE:
                    // REVISIT: pool shouldn't update the files size on flush, but this is required due to space manager accounting
                    if (!attr.isDefined(STORAGEINFO) || !attr.getStorageInfo().isSetAddLocation()) {
                        stat.setSize(attr.getSize());
                    }
                    break;
                case MODE:
                    stat.setMode(attr.getMode());
                    break;
                case CREATION_TIME:
                    stat.setCrTime(attr.getCreationTime());
                    break;
                case CHANGE_TIME:
                    stat.setCTime(attr.getChangeTime());
                    break;
                case MODIFICATION_TIME:
                    stat.setMTime(attr.getModificationTime());
                    break;
                case ACCESS_TIME:
                    stat.setATime(attr.getAccessTime());
                    break;
                case OWNER:
                    stat.setUid(attr.getOwner());
                    break;
                case OWNER_GROUP:
                    stat.setGid(attr.getGroup());
                    break;
                case CHECKSUM:
                    break;
                case ACCESS_LATENCY:
                    stat.setAccessLatency(attr.getAccessLatency());
                    break;
                case RETENTION_POLICY:
                    stat.setRetentionPolicy(attr.getRetentionPolicy());
                    break;
                case FLAGS:
                    break;
                case ACL:
                    break;
                case STORAGEINFO:
                    _extractor.setStorageInfo(inode, attr.getStorageInfo());
                    break;
                case XATTR:
                    break;
                case LABELS:
                    break;
                default:
                    throw new UnsupportedOperationException("Attribute " + attribute + " not supported yet.");
            }
        }
        if (stat.isDefinedAny()) {
            inode.setStat(stat);
        }
        if (attr.isDefined(XATTR)) {
            Map<String, String> xattrs = attr.getXattrs();
            for (Map.Entry<String, String> e : xattrs.entrySet()) {
                _fs.setXattr(inode, e.getKey(), e.getValue().getBytes(StandardCharsets.UTF_8), SetXattrMode.EITHER);
            }
        }
        if (attr.isDefined(LABELS)) {
            for (String label : attr.getLabels()) {
                _fs.addLabel(inode, label);
            }
        }
        if (attr.isDefined(FileAttribute.LOCATIONS)) {
            for (String location : attr.getLocations()) {
                _fs.addInodeLocation(inode, StorageGenericLocation.DISK, location);
            }
        }
        if (attr.isDefined(FileAttribute.CHECKSUM)) {
            for (Checksum newChecksum : attr.getChecksums()) {
                ChecksumType type = newChecksum.getType();
                Optional<Checksum> existingChecksum = _fs.getInodeChecksums(inode).stream().filter(c -> c.getType() == type).findFirst();
                if (existingChecksum.isPresent()) {
                    Checksum existing = existingChecksum.get();
                    if (!existing.equals(newChecksum)) {
                        throw new FileCorruptedCacheException(existing, newChecksum);
                    }
                } else {
                    _fs.setInodeChecksum(inode, type.getType(), newChecksum.getValue());
                }
            }
        }
        if (attr.isDefined(FileAttribute.FLAGS)) {
            FsInode level2 = new ExtendedInode(_fs, pnfsId, NO_STAT).getLevel(2);
            ChimeraCacheInfo cacheInfo = new ChimeraCacheInfo(level2);
            for (Map.Entry<String, String> flag : attr.getFlags().entrySet()) {
                cacheInfo.getFlags().put(flag.getKey(), flag.getValue());
            }
            cacheInfo.writeCacheInfo(level2);
        }
        if (attr.isDefined(FileAttribute.ACL)) {
            ACL acl = attr.getAcl();
            _fs.setACL(inode, acl.getList());
        }
        return getFileAttributes(inode, acquire);
    } catch (FileNotFoundChimeraFsException e) {
        throw new FileNotFoundCacheException("No such file or directory: " + pnfsId);
    } catch (IOException e) {
        LOGGER.error("Exception in setFileAttributes: {}", e);
        throw new CacheException(CacheException.UNEXPECTED_SYSTEM_EXCEPTION, e.getMessage());
    }
}

Example 2 with NO_STAT

use of org.dcache.chimera.FileSystemProvider.StatCacheOption.NO_STAT in project dcache by dCache.

the class ChimeraNameSpaceProvider method find.

@Override
public Collection<Link> find(Subject subject, PnfsId pnfsId) throws CacheException {
    try {
        ExtendedInode target = new ExtendedInode(_fs, pnfsId, NO_STAT);
        Collection<Link> locations = _fs.find(target).stream().flatMap(l -> {
            try {
                ExtendedInode parent = new ExtendedInode(_fs, l.getParent());
                PnfsId parentId = parent.getPnfsId();
                return Stream.of(new Link(parentId, l.getName()));
            } catch (ChimeraFsException e) {
                LOGGER.error("Failed to find PnfsId of parent {}: {}", l.getParent(), e.toString());
                return Stream.of();
            }
        }).collect(Collectors.toList());
        if (locations.isEmpty()) {
            throw new FileNotFoundCacheException("No such file or directory: " + pnfsId);
        }
        return locations;
    } catch (FileNotFoundChimeraFsException e) {
        throw new FileNotFoundCacheException("No such file or directory: " + pnfsId);
    } catch (IOException e) {
        throw new CacheException(CacheException.UNEXPECTED_SYSTEM_EXCEPTION, e.getMessage());
    }
}