Example usage for org.apache.cassandra.io.util FileDataInput bytesPastMark

Introduction

In this page you can find the example usage for org.apache.cassandra.io.util FileDataInput bytesPastMark.

Prototype

long bytesPastMark(DataPosition mark);

Source Link

Usage

From source file:com.datastax.brisk.BriskServer.java

License:Apache License

private Integer seekToSubColumn(CFMetaData metadata, FileDataInput file, ByteBuffer sblockId,
        List<IndexHelper.IndexInfo> indexList) throws IOException {
    file.readInt(); // column count

    /* get the various column ranges we have to read */
    AbstractType comparator = metadata.comparator;

    int index = IndexHelper.indexFor(sblockId, indexList, comparator, false);
    if (index == indexList.size())
        return null;

    IndexHelper.IndexInfo indexInfo = indexList.get(index);
    if (comparator.compare(sblockId, indexInfo.firstName) < 0)
        return null;

    FileMark mark = file.mark();/*from ww w .ja va 2 s  .c om*/

    FileUtils.skipBytesFully(file, indexInfo.offset);

    while (file.bytesPastMark(mark) < indexInfo.offset + indexInfo.width) {
        Integer dataLength = isSubBlockFound(metadata, file, sblockId);

        if (dataLength == null)
            return null;

        if (dataLength < 0)
            continue;

        return dataLength;
    }

    return null;
}

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