Examples with CNC_VERSION io.aeron.CncFileDescriptor.CNC_VERSION used on opensource projects

Example 1 with CNC_VERSION

use of io.aeron.CncFileDescriptor.CNC_VERSION in project aeron by real-logic.

the class CommonContext method saveErrorLog.

/**
 * Read the error log to a given {@link PrintStream}
 *
 * @param out           to write the error log contents to.
 * @param cncByteBuffer containing the error log.
 * @return the number of observations from the error log.
 */
public int saveErrorLog(final PrintStream out, final MappedByteBuffer cncByteBuffer) {
    if (null == cncByteBuffer) {
        return 0;
    }
    final UnsafeBuffer cncMetaDataBuffer = CncFileDescriptor.createMetaDataBuffer(cncByteBuffer);
    final int cncVersion = cncMetaDataBuffer.getInt(CncFileDescriptor.cncVersionOffset(0));
    if (CNC_VERSION != cncVersion) {
        throw new IllegalStateException("Aeron CnC version does not match: required=" + CNC_VERSION + " version=" + cncVersion);
    }
    final AtomicBuffer buffer = CncFileDescriptor.createErrorLogBuffer(cncByteBuffer, cncMetaDataBuffer);
    final SimpleDateFormat dateFormat = new SimpleDateFormat("yyyy-MM-dd HH:mm:ss.SSSZ");
    final ErrorConsumer errorConsumer = (count, firstTimestamp, lastTimestamp, ex) -> formatError(out, dateFormat, count, firstTimestamp, lastTimestamp, ex);
    final int distinctErrorCount = ErrorLogReader.read(buffer, errorConsumer);
    out.format("%n%d distinct errors observed.%n", distinctErrorCount);
    return distinctErrorCount;
}