Examples with CREATE java.nio.file.StandardOpenOption.CREATE used on opensource projects

Example 1 with CREATE

use of java.nio.file.StandardOpenOption.CREATE in project ignite by apache.

the class FileWriteAheadLogManager method formatWorkSegments.

/**
 * Formatting working segments to {@link DataStorageConfiguration#getWalSegmentSize()} for work in a mmap or fsync case.
 *
 * @throws StorageException If an error occurs when formatting.
 */
private void formatWorkSegments() throws StorageException {
    assert isArchiverEnabled();
    if (mode == WALMode.FSYNC || mmap) {
        List<FileDescriptor> toFormat = Arrays.stream(scan(walWorkDir.listFiles(WAL_SEGMENT_FILE_FILTER))).filter(fd -> fd.file().length() < dsCfg.getWalSegmentSize()).collect(toList());
        if (!toFormat.isEmpty()) {
            if (log.isInfoEnabled()) {
                log.info("WAL segments in working directory should have the same size: '" + U.humanReadableByteCount(dsCfg.getWalSegmentSize()) + "'. Segments that need reformat " + "found: " + F.viewReadOnly(toFormat, fd -> fd.file().getName()) + '.');
            }
            for (int i = 0, j = 0; i < toFormat.size(); i++) {
                FileDescriptor fd = toFormat.get(i);
                File tmpDst = new File(fd.file().getName() + TMP_SUFFIX);
                try {
                    Files.copy(fd.file().toPath(), tmpDst.toPath());
                    if (log.isDebugEnabled()) {
                        log.debug("Start formatting WAL segment [filePath=" + tmpDst.getAbsolutePath() + ", fileSize=" + U.humanReadableByteCount(tmpDst.length()) + ", toSize=" + U.humanReadableByteCount(dsCfg.getWalSegmentSize()) + ']');
                    }
                    try (FileIO fileIO = ioFactory.create(tmpDst, CREATE, READ, WRITE)) {
                        int left = (int) (dsCfg.getWalSegmentSize() - tmpDst.length());
                        fileIO.position(tmpDst.length());
                        while (left > 0) left -= fileIO.writeFully(FILL_BUF, 0, Math.min(FILL_BUF.length, left));
                        fileIO.force();
                    }
                    Files.move(tmpDst.toPath(), fd.file().toPath(), REPLACE_EXISTING, ATOMIC_MOVE);
                    if (log.isDebugEnabled())
                        log.debug("WAL segment formatted: " + fd.file().getAbsolutePath());
                    // Batch output.
                    if (log.isInfoEnabled() && (i == toFormat.size() - 1 || (i != 0 && i % 9 == 0))) {
                        log.info("WAL segments formatted: " + toFormat.get(j).file().getName() + (i == j ? "" : " - " + fileName(i)));
                        j = i + 1;
                    }
                } catch (IOException e) {
                    throw new StorageException("Failed to format WAL segment: " + fd.file().getAbsolutePath(), e);
                }
            }
        }
    }
}