stats.py 文件源码

def get_stats_files(session):
    total_files = 0  # number of files
    total_size_bytes = 0  # bytes
    total_duration_seconds = 0  # seconds

    try:
        File = models.File
        result = session.query(File.size, File.duration).all()
        for size, duration in result:
            try:
                size = int(size)
            except Exception as e:  # ignore some ill-records
                LOG.warning("%s" % e)
                size = 0

            try:
                duration = float(duration)
            except Exception as e:  # ignore some ill-records
                LOG.warning("%s" % e)
                duration = 0

            total_files += 1
            total_size_bytes += size
            total_duration_seconds += duration
    except Exception as e:
        LOG.error("handling request: %s" % e)

    stats = {
        'total_files': total_files,
        'total_size_bytes': total_size_bytes,
        'total_duration_seconds': total_duration_seconds,
    }
    return stats