Examples with EMPTY_ACCESSOR org.neo4j.kernel.impl.transaction.log.files.ChannelNativeAccessor.EMPTY_ACCESSOR used on opensource projects

Example 1 with EMPTY_ACCESSOR

use of org.neo4j.kernel.impl.transaction.log.files.ChannelNativeAccessor.EMPTY_ACCESSOR in project neo4j by neo4j.

the class TransactionLogsRecoveryTest method writeSomeDataWithVersion.

private void writeSomeDataWithVersion(Path file, Visitor<Pair<LogEntryWriter, Consumer<LogPositionMarker>>, IOException> visitor, KernelVersion version) throws IOException {
    try (LogVersionedStoreChannel versionedStoreChannel = new PhysicalLogVersionedStoreChannel(fileSystem.write(file), logVersion, CURRENT_LOG_FORMAT_VERSION, file, EMPTY_ACCESSOR);
        PositionAwarePhysicalFlushableChecksumChannel writableLogChannel = new PositionAwarePhysicalFlushableChecksumChannel(versionedStoreChannel, new HeapScopedBuffer(1, KibiByte, INSTANCE))) {
        writeLogHeader(writableLogChannel, new LogHeader(logVersion, 2L, StoreId.UNKNOWN));
        writableLogChannel.beginChecksum();
        Consumer<LogPositionMarker> consumer = marker -> {
            try {
                writableLogChannel.getCurrentPosition(marker);
            } catch (IOException e) {
                throw new RuntimeException(e);
            }
        };
        LogEntryWriter first = new LogEntryWriter(writableLogChannel, version);
        visitor.visit(Pair.of(first, consumer));
    }
}