Examples with AttributeSequence dev.hawala.xns.level4.filing.FilingCommon.AttributeSequence used on opensource projects

Example 1 with AttributeSequence

use of dev.hawala.xns.level4.filing.FilingCommon.AttributeSequence in project dodo by devhawala.

the class FilingImpl method copy.

/*
	 * Copy: PROCEDURE [ file, destinationDirectory: Handle ,
	 *                   attributes: AttributeSequence, controls: ControlSequence,
	 *                   session: Session ]
	 *   RETURNS [ newFile: Handle ]
	 *   REPORTS [ AccessError, AttributeTypeError, AttributeValueError,
	 *             AuthenticationError, ControlTypeError, ControlValueError,
	 *             HandleError, InsertionError, SessionError, SpaceError,
	 *             UndefinedError ]
	 *   = 10;
	 */
private static void copy(CopyParams params, CopyResults results) {
    logParams("copy", params);
    // check session
    Session session = resolveSession(params.session);
    Volume vol = session.getService().getVolume();
    // check specified file handle
    Handle fileHandle = Handle.get(params.handle);
    if (fileHandle.isVolumeRoot()) {
        // the file system root cannot be copied
        new AccessErrorRecord(AccessProblem.accessRightsInsufficient).raise();
    }
    if (fileHandle.isNullHandle()) {
        new HandleErrorRecord(HandleProblem.nullDisallowed).raise();
    }
    FileEntry fe = fileHandle.getFe();
    if (fe.getParentID() == FsConstants.rootFileID) {
        // file system root folders cannot be copied
        new AccessErrorRecord(AccessProblem.accessRightsInsufficient).raise();
    }
    // check the destination
    Handle destinationDirHandle = Handle.get(params.destinationDirectory);
    if (destinationDirHandle.isVolumeRoot()) {
        // the file system root cannot be target
        new AccessErrorRecord(AccessProblem.accessRightsInsufficient).raise();
    }
    if (destinationDirHandle.isNullHandle()) {
        new HandleErrorRecord(HandleProblem.nullDisallowed).raise();
    }
    FileEntry destinationDirectory = destinationDirHandle.getFe();
    // copy the file and return new file
    List<iValueSetter> attrSetters = getCourier2FileAttributeSetters(params.attributes);
    try (Volume.Session modSession = vol.startModificationSession()) {
        // do the copy
        FileEntry newFe = modSession.copy(fe, destinationDirectory, attrSetters, session.getUsername());
        // prepare results
        Handle newFeHandle = new Handle(session, newFe);
        newFeHandle.setIdTo(results.newHandle);
        logResult("copy", results);
    } catch (InterruptedException e) {
        new UndefinedErrorRecord(FilingCommon.UNDEFINEDERROR_CANNOT_MODIFY_VOLUME).raise();
    } catch (Exception e) {
        new SpaceErrorRecord(SpaceProblem.mediumFull).raise();
    }
    // prolongate the sessions life if this took longer
    session.continueUse();
}

Example 2 with AttributeSequence

use of dev.hawala.xns.level4.filing.FilingCommon.AttributeSequence in project dodo by devhawala.

the class FilingImpl method changeAttributes.

/*
	 * ChangeAttributes: PROCEDURE [ file: Handle, attributes: AttributeSequence,
	 *                               session: Session ]
	 *   REPORTS [ AccessError, AttributeTypeError, AttributeValueError,
	 *             AuthenticationError, HandleError, InsertionError,
	 *             SessionError, SpaceError, UndefinedError ]
	 *   = 9;
	 */
private static void changeAttributes(ChangeAttributesParams params, RECORD results) {
    logParams("changeAttributes", params);
    // check session
    Session session = resolveSession(params.session);
    Volume vol = session.getService().getVolume();
    // check specified file handle
    Handle fileHandle = Handle.get(params.handle);
    if (fileHandle == null || fileHandle.isNullHandle()) {
        new HandleErrorRecord(HandleProblem.nullDisallowed).raise();
    }
    if (fileHandle.isVolumeRoot()) {
        // the file system root cannot be modified
        new AccessErrorRecord(AccessProblem.accessRightsInsufficient).raise();
    }
    FileEntry fe = fileHandle.getFe();
    if (fe == null) {
        new HandleErrorRecord(HandleProblem.nullDisallowed).raise();
    }
    // change attributes
    List<iValueSetter> attrSetters = getCourier2FileAttributeSetters(params.attributes);
    try (Volume.Session modSession = vol.startModificationSession()) {
        modSession.updateFileAttributes(fe, attrSetters, session.getUsername());
    } catch (InterruptedException e) {
        new UndefinedErrorRecord(FilingCommon.UNDEFINEDERROR_CANNOT_MODIFY_VOLUME).raise();
    } catch (EndOfMessageException e) {
        new ConnectionErrorRecord(ConnectionProblem.otherCallProblem).raise();
    } catch (CourierException ce) {
        // this is a RuntimeException, why is it catch-ed by Exception ???????
        throw ce;
    } catch (Exception e1) {
        new SpaceErrorRecord(SpaceProblem.mediumFull).raise();
    }
}

Example 3 with AttributeSequence

use of dev.hawala.xns.level4.filing.FilingCommon.AttributeSequence in project dodo by devhawala.

the class FilingImpl method list.

/*
	 * List: PROCEDURE [ directory: Handle, types: AttributeTypeSequence,
	 *                   scope: ScopeSequence, listing: BulkData.Sink,
	 *                   session: Session ]
	 *   REPORTS [ AccessError, AttributeTypeError,
	 *             AuthenticationError, ConnectionError,
	 *             HandleError,
	 *             ScopeTypeError, ScopeValueError,
	 *             SessionError, TransferError, UndefinedError ]
	 *   = 18;
	 */
private static void list(ListParams params, RECORD results) {
    logParams("list", params);
    // check session
    Session session = resolveSession(params.session);
    // check specified file handle
    Handle dirHandle = Handle.get(params.directory);
    long dirFileID = (dirHandle == null || dirHandle.isNullHandle() || dirHandle.isVolumeRoot()) ? 0 : dirHandle.getFe().getFileID();
    // do the enumeration
    final List<FileEntry> hits = getFileHits(session, dirFileID, new ScopeData(params.scope));
    // prepare the attribute getters
    List<iValueGetter<FilingCommon.AttributeSequence>> getters = getFile2CourierAttributeGetters(params.types, session.getFilingVersion());
    // build the result stream and send it
    StreamOf<AttributeSequence> stream = new StreamOf<>(0, 1, 16, AttributeSequence::make);
    for (FileEntry fe : hits) {
        AttributeSequence as = stream.add();
        for (iValueGetter<FilingCommon.AttributeSequence> getter : getters) {
            getter.access(as, fe);
        }
    }
    sendBulkData("list", params.listing, stream);
}

Example 4 with AttributeSequence

use of dev.hawala.xns.level4.filing.FilingCommon.AttributeSequence in project dodo by devhawala.

the class FilingImpl method create.

/*
	 * Create: PROCEDURE [ directory: Handle, attributes: AttributeSequence,
	 *                     controls: ControlSequence, session: Session ]
	 *   RETURNS [ file: Handle ]
	 *   REPORTS [ AccessError, AttributeTypeError, AttributeValueError,
	 *             AuthenticationError, ControlTypeError, ControlValueError,
	 *             HandleError, InsertionError, SessionError, SpaceError,
	 *             UndefinedError ]
	 *   = 4;
	 */
private static void create(CreateParams params, FileHandleRecord results) {
    logParams("create", params);
    // check session
    Session session = resolveSession(params.session);
    // check specified directory file handle
    Handle dirHandle = Handle.get(params.directory);
    if (dirHandle.isVolumeRoot()) {
        // the file system root cannot be modified
        new AccessErrorRecord(AccessProblem.accessRightsInsufficient).raise();
    }
    if (dirHandle.isNullHandle()) {
        new HandleErrorRecord(HandleProblem.directoryRequired).raise();
    }
    // TODO: check (access-)controls on directory
    // let the file be created
    FileEntry fe = createFile(null, session, dirHandle.getFe().getFileID(), params.attributes, null, null);
    // prepare results
    Handle fileHandle = new Handle(session, fe);
    fileHandle.setIdTo(results.file);
    logResult("create", results);
    // prolongate the sessions life
    session.continueUse();
}

Example 5 with AttributeSequence

use of dev.hawala.xns.level4.filing.FilingCommon.AttributeSequence in project dodo by devhawala.

the class FilingImpl method list4.

private static void list4(ListParams4 params, RECORD results) {
    logParams("list4", params);
    // check session
    Session session = resolveSession(params.session);
    // check specified file handle
    Handle dirHandle = Handle.get(params.directory);
    long dirFileID = (dirHandle == null || dirHandle.isNullHandle() || dirHandle.isVolumeRoot()) ? 0 : dirHandle.getFe().getFileID();
    // do the enumeration
    final List<FileEntry> hits = getFileHits(session, dirFileID, new ScopeData(params.scope));
    // prepare the attribute getters
    List<iValueGetter<FilingCommon.AttributeSequence>> getters = getFile2CourierAttributeGetters(params.types, session.getFilingVersion());
    // build the result stream and send it
    StreamOf<AttributeSequence> stream = new StreamOf<>(0, 1, 16, AttributeSequence::make);
    for (FileEntry fe : hits) {
        AttributeSequence as = stream.add();
        for (iValueGetter<FilingCommon.AttributeSequence> getter : getters) {
            getter.access(as, fe);
        }
    }
    sendBulkData("list", params.listing, stream);
}