public Task <List <KeyValuePair <string, WaveDataAverage> > > Reduce(string key, List <KeyValuePair <string, List <WaveData> > > values)
{
var result = new List <KeyValuePair <string, WaveDataAverage> >();
var flatternList = values.SelectMany(x => x.Value).ToList();
var siteGroups = flatternList.GroupBy(x => x.Site, y => y);
foreach (var siteGroup in siteGroups)
{
//var totalSeconds = siteGroup.Sum(x => x.Seconds);
var totalHsig = siteGroup.Sum(x => x.Hsig);
var totalHmax = siteGroup.Sum(x => x.Hmax);
var totalTp = siteGroup.Sum(x => x.Tp);
var totalTz = siteGroup.Sum(x => x.Tz);
var totalSst = siteGroup.Sum(x => x.Sst);
var totalDirection = siteGroup.Sum(x => x.Direction);
var count = siteGroup.Count();
var avg = new WaveDataAverage
{
Site = key,
//Seconds = totalSeconds / count,
Hisg = totalHsig / count,
Hmax = totalHmax / count,
Tp = totalTp / count,
Tz = totalTz / count,
Sst = totalSst / count,
Direction = totalDirection / count
};
result.Add(new KeyValuePair <string, WaveDataAverage>(siteGroup.Key, avg));
}
return(Task.FromResult(result));
}
public Task <List <KeyValuePair <string, WaveDataAverage> > > WaveDataWithoutUsingMapReduce()
{
var result = new List <KeyValuePair <string, WaveDataAverage> >();
var siteGroups = _waveDatas.GroupBy(x => x.Site, y => y);
foreach (var siteGroup in siteGroups)
{
//var totalSeconds = siteGroup.Sum(x => x.Seconds);
var totalHsig = siteGroup.Sum(x => x.Hsig);
var totalHmax = siteGroup.Sum(x => x.Hmax);
var totalTp = siteGroup.Sum(x => x.Tp);
var totalTz = siteGroup.Sum(x => x.Tz);
var totalSst = siteGroup.Sum(x => x.Sst);
var totalDirection = siteGroup.Sum(x => x.Direction);
var count = siteGroup.Count();
var avg = new WaveDataAverage
{
Site = siteGroup.Key,
//Seconds = totalSeconds / count,
Hisg = totalHsig / count,
Hmax = totalHmax / count,
Tp = totalTp / count,
Tz = totalTz / count,
Sst = totalSst / count,
Direction = totalDirection / count
};
result.Add(new KeyValuePair <string, WaveDataAverage>(siteGroup.Key, avg));
}
return(Task.FromResult(result));
}
