public void setAttribute()

in sshd-sftp/src/main/java/org/apache/sshd/sftp/client/fs/SftpFileSystemProvider.java [1238:1301]
61 lines of code
18 McCabe index (conditional complexity)

    public void setAttribute(Path path, String view, String attr, Object value, LinkOption... options) throws IOException {
        SftpPath p = toSftpPath(path);
        SftpFileSystem fs = p.getFileSystem();
        Collection<String> views = fs.supportedFileAttributeViews();
        if (GenericUtils.isEmpty(views) || (!views.contains(view))) {
            throw new UnsupportedOperationException(
                    "setAttribute(" + path + ")[" + view + ":" + attr + "=" + value + "] view " + view + " not supported: "
                                                    + views);
        }

        SftpClient.Attributes attributes = new SftpClient.Attributes();
        switch (attr) {
            case IoUtils.LASTMOD_TIME_VIEW_ATTR:
                attributes.modifyTime((int) ((FileTime) value).to(TimeUnit.SECONDS));
                break;
            case IoUtils.LASTACC_TIME_VIEW_ATTR:
                attributes.accessTime((int) ((FileTime) value).to(TimeUnit.SECONDS));
                break;
            case IoUtils.CREATE_TIME_VIEW_ATTR:
                attributes.createTime((int) ((FileTime) value).to(TimeUnit.SECONDS));
                break;
            case IoUtils.SIZE_VIEW_ATTR:
                attributes.size(((Number) value).longValue());
                break;
            case IoUtils.PERMISSIONS_VIEW_ATTR: {
                @SuppressWarnings("unchecked")
                Set<PosixFilePermission> attrSet = (Set<PosixFilePermission>) value;
                attributes.perms(attributesToPermissions(path, attrSet));
                break;
            }
            case IoUtils.OWNER_VIEW_ATTR:
                attributes.owner(((UserPrincipal) value).getName());
                break;
            case IoUtils.GROUP_VIEW_ATTR:
                attributes.group(((GroupPrincipal) value).getName());
                break;
            case IoUtils.ACL_VIEW_ATTR: {
                ValidateUtils.checkTrue("acl".equalsIgnoreCase(view), "ACL cannot be set via view=%s", view);
                @SuppressWarnings("unchecked")
                List<AclEntry> acl = (List<AclEntry>) value;
                attributes.acl(acl);
                break;
            }
            case IoUtils.REGFILE_VIEW_ATTR:
            case IoUtils.DIRECTORY_VIEW_ATTR:
            case IoUtils.SYMLINK_VIEW_ATTR:
            case IoUtils.OTHERFILE_VIEW_ATTR:
            case IoUtils.FILEKEY_VIEW_ATTR:
                throw new UnsupportedOperationException(
                        "setAttribute(" + path + ")[" + view + ":" + attr + "=" + value + "] modification N/A");
            default:
                if (log.isTraceEnabled()) {
                    log.trace("setAttribute({})[{}] ignore {}:{}={}", fs, path, view, attr, value);
                }
        }

        if (log.isDebugEnabled()) {
            log.debug("setAttribute({}) {}: {}", fs, path, attributes);
        }

        try (SftpClient client = fs.getClient()) {
            client.setStat(p.toString(), attributes);
        }
    }