/// <summary>
/// Creates a new <see cref="CompactMeasurement"/>.
/// </summary>
/// <param name="signalIndexCache">Signal index cache used to serialize or deserialize runtime information.</param>
/// <param name="includeTime">Set to <c>true</c> to include time in serialized packet; otherwise <c>false</c>.</param>
/// <param name="baseTimeOffsets">Base time offset array - set to <c>null</c> to use full fidelity measurement time.</param>
/// <param name="timeIndex">Time index to use for base offset.</param>
/// <param name="useMillisecondResolution">Flag that determines if millisecond resolution is in use for this serialization.</param>
public CompactMeasurement(SignalIndexCache signalIndexCache, bool includeTime = true, long[] baseTimeOffsets = null, int timeIndex = 0, bool useMillisecondResolution = false)
{
m_signalIndexCache = signalIndexCache;
IncludeTime = includeTime;
// We keep a clone of the base time offsets, if provided, since array contents can change at any time
m_baseTimeOffsets = baseTimeOffsets is null ? s_emptyBaseTimeOffsets : new[] { baseTimeOffsets[0], baseTimeOffsets[1] };
m_timeIndex = timeIndex;
m_useMillisecondResolution = useMillisecondResolution;
}
/// <summary>
/// Creates a new local system cache from one that was received remotely.
/// </summary>
/// <param name="dataSource"><see cref="DataSet"/> based data source used to interpret local measurement keys.</param>
/// <param name="remoteCache">Deserialized remote signal index cache.</param>
public SignalIndexCache(DataSet dataSource, SignalIndexCache remoteCache)
{
m_subscriberID = remoteCache.SubscriberID;
// If active measurements are defined, interpret signal cache in context of current measurement key definitions
if (dataSource is null || !dataSource.Tables.Contains("ActiveMeasurements"))
{
// Just use remote signal index cache as-is if no local configuration exists
Reference = remoteCache.Reference;
m_unauthorizedSignalIDs = remoteCache.UnauthorizedSignalIDs;
}
