Examples of org.hsqldb.lib.FileAccess$FileSync

org.hsqldb.lib.FileAccess
Interface for abstraction of file access. @author Ocke Janssen oj@openoffice.org @version 1.9.0 @since 1.8.0


        // in case data file cannot be deleted, reset it
        deleteOrResetFreePos();


        try {
            FileAccess fa = database.logger.getFileAccess();


            if (fa.isStreamElement(backupFileName)) {
                FileArchiver.unarchive(backupFileName, dataFileName, fa,
                                       FileArchiver.COMPRESSION_ZIP);


                return true;
            }

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     *  never pre-exists
     */
    protected void openFile() {


        try {
            FileAccess   fa  = isDump ? FileUtil.getFileUtil()
                                      : database.logger.getFileAccess();
            OutputStream fos = fa.openOutputStreamElement(outFile);


            outDescriptor = fa.getFileSync(fos);
            fileStreamOut = new BufferedOutputStream(fos, 2 << 12);
        } catch (IOException e) {
            throw Error.error(e, ErrorCode.FILE_IO_ERROR,
                              ErrorCode.M_Message_Pair, new Object[] {
                e.getMessage(), outFile

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     *  never pre-exists
     */
    protected void openFile() throws HsqlException {


        try {
            FileAccess   fa  = isDump ? FileUtil.getDefaultInstance()
                                      : database.getFileAccess();
            OutputStream fos = fa.openOutputStreamElement(outFile);


            outDescriptor = fa.getFileSync(fos);
            fileStreamOut = new BufferedOutputStream(fos, 2 << 12);
        } catch (IOException e) {
            throw Trace.error(Trace.FILE_IO_ERROR, Trace.Message_Pair,
                              new Object[] {
                e.toString(), outFile

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    static void backupFile(Database database, String fileName,
                           String backupFileName, boolean newFile) {


        try {
            FileAccess fa = database.logger.getFileAccess();


            if (database.logger.propIncrementBackup) {
                if (fa.isStreamElement(backupFileName)) {
                    deleteFile(database, backupFileName);


                    if (fa.isStreamElement(backupFileName)) {
                        throw Error.error(ErrorCode.DATA_FILE_ERROR,
                                          "cannot delete old backup file");
                    }
                }


                return;
            }


            if (fa.isStreamElement(fileName)) {
                if (newFile) {
                    backupFileName += Logger.newFileExtension;
                } else {
                    deleteFile(database, backupFileName);


                    if (fa.isStreamElement(backupFileName)) {
                        throw Error.error(ErrorCode.DATA_FILE_ERROR,
                                          "cannot delete old backup file");
                    }
                }

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        renameBackupFile(database, backupFileName);
    }


    static void renameBackupFile(Database database, String backupFileName) {


        FileAccess fileAccess = database.logger.getFileAccess();


        if (database.logger.propIncrementBackup) {
            deleteFile(database, backupFileName);


            return;
        }


        if (fileAccess.isStreamElement(backupFileName
                                       + Logger.newFileExtension)) {
            deleteFile(database, backupFileName);
            fileAccess.renameElement(backupFileName + Logger.newFileExtension,
                                     backupFileName);
        }
    }

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        renameDataFile(database, dataFileName);
    }


    static void renameDataFile(Database database, String dataFileName) {


        FileAccess fileAccess = database.logger.getFileAccess();


        if (fileAccess.isStreamElement(dataFileName
                                       + Logger.newFileExtension)) {
            deleteFile(database, dataFileName);
            fileAccess.renameElement(dataFileName + Logger.newFileExtension,
                                     dataFileName);
        }
    }

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        deleteFile(database, dataFileName);
    }


    static void deleteFile(Database database, String fileName) {


        FileAccess fileAccess = database.logger.getFileAccess();


        // first attemp to delete
        fileAccess.removeElement(fileName);


        if (database.logger.isStoredFileAccess()) {
            return;
        }


        if (fileAccess.isStreamElement(fileName)) {
            database.logger.log.deleteOldDataFiles();
            fileAccess.removeElement(fileName);


            if (fileAccess.isStreamElement(fileName)) {
                String discardName = FileUtil.newDiscardFileName(fileName);


                fileAccess.renameElement(fileName, discardName);
            }
        }
    }

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    static boolean restoreBackup(Database database, String dataFileName,
                                 String backupFileName) {


        try {
            FileAccess fileAccess = database.logger.getFileAccess();


            // todo - in case data file cannot be deleted, reset it
            deleteFile(database, dataFileName);


            if (fileAccess.isStreamElement(backupFileName)) {
                FileArchiver.unarchive(backupFileName, dataFileName,
                                       fileAccess,
                                       FileArchiver.COMPRESSION_ZIP);


                return true;

View Full Code Here

     */
    static boolean restoreBackupIncremental(Database database,
            String dataFileName, String backupFileName) {


        try {
            FileAccess fileAccess = database.logger.getFileAccess();


            if (fileAccess.isStreamElement(backupFileName)) {
                RAShadowFile.restoreFile(database, backupFileName,
                                         dataFileName);
                deleteFile(database, backupFileName);


                return true;

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     *  never pre-exists
     */
    protected void openFile() {


        try {
            FileAccess   fa  = isDump ? FileUtil.getFileUtil()
                                      : database.logger.getFileAccess();
            OutputStream fos = fa.openOutputStreamElement(outFile);


            outDescriptor = fa.getFileSync(fos);
            fileStreamOut = fos;
            fileStreamOut = new BufferedOutputStream(fos, 1 << 14);
        } catch (IOException e) {
            throw Error.error(e, ErrorCode.FILE_IO_ERROR,
                              ErrorCode.M_Message_Pair, new Object[] {

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