/// <summary>
/// Queries the data in the sensor tag.
/// </summary>
public ICollection <SensorReading> QuerySensorTags(WirelessSensorTagAPI tagService, List <SensorDevice> allDevices)
{
var result = new List <SensorReading>();
Utils.Log("Querying tag list...");
var tagList = tagService.MakeRestRequest <TagList>("ethClient.asmx/GetTagList", new { });
if (tagList.d.Any())
{
foreach (var tag in tagList.d)
{
var fromDate = getDeviceHighWaterMark(tag.uuid);
var toDate = DateTime.UtcNow;
Utils.Log("Querying {0} data between {1} and {2}...", tag.name, fromDate, toDate);
var body = new { id = tag.slaveId, fromDate, toDate };
var data = tagService.MakeRestRequest <RawTempData>("ethLogs.asmx/GetTemperatureRawData", body);
if (data != null && data.d != null)
{
SensorDevice device = new SensorDevice {
uuid = tag.uuid, name = tag.name, type = "Tag", location = ""
};
allDevices.Add(device);
var records = CreateSensorData(device, data, tag);
if (records.Any())
{
var firstReading = records.Min(x => x.timestamp);
var lastReading = records.Max(x => x.timestamp);
Utils.Log("Found readings from {0:dd-MMM-yyyy HH:mm:ss} to {1:dd-MMM-yyyy HH:mm:ss}", firstReading, lastReading);
var newRecords = records.Where(x => x.timestamp > fromDate).ToList();
if (newRecords.Any())
{
Utils.Log("Filtered {0} previously-seen records - storing {1}", records.Count() - newRecords.Count(), newRecords.Count());
result.AddRange(newRecords);
}
else
{
Utils.Log("All records were older than high watermark. Ignoring.");
}
}
}
}
}
return(result);
}
/// <summary>
/// Queries the data in the sensor tag.
/// </summary>
public ICollection <SensorReading> QuerySensorTags(WirelessSensorTagAPI tagService, List <SensorDevice> allDevices)
{
var result = new List <SensorReading>();
Utils.Log("Querying tag list...");
var tagList = tagService.MakeRestRequest <TagList>("ethClient.asmx/GetTagList", new { });
if (tagList.d.Any())
{
foreach (var tag in tagList.d)
{
int dateRangeForBatch = 90;
var fromDate = getDeviceHighWaterMark(tag.uuid);
var toDate = DateTime.UtcNow;
bool gotRecords = false;
while (!gotRecords)
{
// Limit to 90 days at a time
if ((toDate - fromDate).TotalDays > dateRangeForBatch)
{
toDate = fromDate.AddDays(dateRangeForBatch);
}
Utils.Log("Querying {0} data between {1:dd-MMM-yyyy} and {2:dd-MMM-yyyy}...", tag.name, fromDate, toDate);
var body = new { id = tag.slaveId, fromDate, toDate };
var data = tagService.MakeRestRequest <RawTempData>("ethLogs.asmx/GetTemperatureRawData", body);
if (data != null && data.d != null)
{
SensorDevice device = new SensorDevice {
uuid = tag.uuid, name = tag.name, type = "Tag", location = ""
};
allDevices.Add(device);
var records = CreateSensorData(device, data, tag);
if (records.Any())
{
gotRecords = true;
var firstReading = records.Min(x => x.timestamp);
var lastReading = records.Max(x => x.timestamp);
Utils.Log("Found readings from {0:dd-MMM-yyyy HH:mm:ss} to {1:dd-MMM-yyyy HH:mm:ss}", firstReading, lastReading);
var newRecords = records.Where(x => x.timestamp > fromDate).ToList();
if (newRecords.Any())
{
Utils.Log("Filtered {0} previously-seen records - {1} new", records.Count() - newRecords.Count(), newRecords.Count());
result.AddRange(newRecords);
}
else
{
Utils.Log("All records were older than high watermark. Ignoring.");
}
}
}
// Throttle to ensure we don't hit the sensortag server too hard.
Utils.Log("Sleeping for 10s to throttle requests.");
Thread.Sleep(10 * 1000);
if (!gotRecords)
{
fromDate = toDate;
toDate = DateTime.UtcNow;
var diff = toDate - fromDate;
// Up to date
if (diff.TotalMinutes < 60)
{
break;
}
Utils.Log("No data in date range. Trying next window.");
}
}
}
}
return(result);
}
