/// <summary>
/// Parses response from a current or sample request, updates changed data items and fires events
/// </summary>
/// <param name="response">IRestResponse from the MTConnect request</param>
private void ParseStream(IRestResponse response)
{
using (StringReader sr = new StringReader(response.Content))
{
var xdoc = XDocument.Load(sr);
_lastSequence = Convert.ToInt64(xdoc.Descendants().First(e => e.Name.LocalName == "Header")
.Attribute("lastSequence").Value);
var xmlDataItems = xdoc.Descendants()
.Where(e => e.Attributes().Any(a => a.Name.LocalName == "dataItemId"));
if (xmlDataItems.Any())
{
var dataItems = xmlDataItems.Select(e => new {
id = e.Attribute("dataItemId").Value,
timestamp = DateTime.Parse(e.Attribute("timestamp").Value, null,
System.Globalization.DateTimeStyles.RoundtripKind),
value = e.Value
})
.OrderBy(i => i.timestamp)
.ToList();
foreach (var item in dataItems)
{
var dataItem = _dataItemsDictionary[item.id];
var sample = new DataItemSample(item.value.ToString(), item.timestamp);
dataItem.AddSample(sample);
}
}
}
}
/// <summary>
/// Adds a sample to the value buffer and removes the oldest value if the buffer is full
/// </summary>
/// <param name="newSample">The new sample to add</param>
internal void AddSample(DataItemSample newSample)
{
dataItemSamples.Enqueue(newSample);
while (dataItemSamples.Count > BufferSize)
{
dataItemSamples.Dequeue();
}
sampleAddedHandler();
}
/// <summary>
/// Adds a sample to the value buffer and removes the oldest value if the buffer is full
/// </summary>
/// <param name="newSample">The new sample to add</param>
internal void AddSample(DataItemSample newSample)
{
dataItemSamples.Enqueue(newSample);
while(dataItemSamples.Count > BufferSize)
{
dataItemSamples.Dequeue();
}
sampleAddedHandler();
}
/// <summary>
/// Adds a sample to the value buffer and removes the oldest value if the buffer is full
/// </summary>
/// <param name="newSample">The new sample to add</param>
internal void AddSample(DataItemSample newSample)
{
_dataItemSamples.Add(newSample);
_dataItemSamples.RemoveRange(0, Math.Max(0, _dataItemSamples.Count - BufferSize));
}
