/// <summary>Returns the ExtendedConfiguration for the time specifed or null if time is before first timestamp in configuration database</summary>
/// <param name="utcTime">UTC time to fetch the configuration for or DateTime.MaxValue for latest timestamp </param>
/// <returns>ExtendedConfiguration object or null</returns>
public ExtendedConfiguration GetConfiguration(DateTime utcTime)
{
using (FetchConfigurationDataClassesDataContext db = new FetchConfigurationDataClassesDataContext(connectionString))
{
if (utcTime == DateTime.MaxValue)
{
utcTime = (DateTime)db.GetLatestTimeStamp().First().TimeStamp;
}
else if (utcTime < db.GetFirstTimeStamp().First().TimeStamp)
{
return(null);
}
List <ExtendedDataSourceDefinition> dataSourcesList = new List <ExtendedDataSourceDefinition>();
Dictionary <string, VariableDefinition> supportedVars = new Dictionary <string, VariableDefinition>();
var dataSources = db.GetDataSources(utcTime);
var dsVariables = db.GetEnvVariables().ToArray();
foreach (var ds in dataSources)
{
var mapping = db.GetMapping(utcTime, ds.Name).ToArray();
var providedVars = mapping.Where(mp => mp.IsOutbound != null && (bool)mp.IsOutbound).Select(mp => mp.FetchVariableName).ToArray();
ExtendedDataSourceDefinition dsd = new ExtendedDataSourceDefinition((ushort)ds.ID, ds.Name, ds.Description, ds.Copyright, ds.Uri, ds.FullClrTypeName, providedVars,
(ds.RemoteName != null) ? ds.Uri : string.Empty,
mapping.ToDictionary(map => map.FetchVariableName, map => map.DataVariableName),
ds.RemoteName,
(ushort)(ds.RemoteID == null ? -1 : ds.RemoteID));
dataSourcesList.Add(dsd);
foreach (var envVar in providedVars)
{
if (!supportedVars.ContainsKey(envVar))
{
var v = dsVariables.Where(dsv => dsv.DisplayName == envVar).First();
supportedVars[envVar] = new VariableDefinition(v.DisplayName, v.Units, v.Description);
}
}
}
return(new ExtendedConfiguration(utcTime, dataSourcesList.ToArray(), supportedVars.Values.ToArray())
{
FetchEngineTypeName = db.GetFetchEngine(utcTime).First().FullClrTypeName
});
}
}
/// <summary>
/// Produces the configuration for the time specified
/// </summary>
/// <param name="utcTime">A time to produce the configuration for</param>
/// <returns></returns>
public IFetchConfiguration GetConfiguration(DateTime utcTime)
{
using (FetchConfigurationDataClassesDataContext db = new FetchConfigurationDataClassesDataContext(connectionString))
{
if (utcTime == DateTime.MaxValue)
{
utcTime = (DateTime)db.GetLatestTimeStamp().First().TimeStamp;
}
else if (utcTime < db.GetFirstTimeStamp().First().TimeStamp)
{
throw new ArgumentException("No configuration exists for given timestamp");
}
List <IDataSourceDefinition> dataSourcesList = new List <IDataSourceDefinition>();
Dictionary <string, IVariableDefinition> supportedVars = new Dictionary <string, IVariableDefinition>();
var dataSources = db.GetDataSources(utcTime);
var dsVariables = db.GetEnvVariables().ToArray();
foreach (var ds in dataSources)
{
var mappings = db.GetMapping(utcTime, ds.Name);
var providedVars = mappings.Where(mp => mp.IsOutbound != null && (bool)mp.IsOutbound).Select(mp => mp.FetchVariableName).ToArray();
if (providedVars.Length > 0) //otherwise there are no mappings for the data source
{
IDataSourceDefinition dsd = new DataSourceDefinition((ushort)ds.ID, ds.Name, ds.Description, ds.Copyright,
(ds.RemoteName != null) ? ds.Uri : string.Empty,
providedVars);
dataSourcesList.Add(dsd);
foreach (var evn in providedVars)
{
if (!supportedVars.ContainsKey(evn))
{
var v = dsVariables.Where(dsv => dsv.DisplayName == evn).First();
supportedVars[v.DisplayName] = new VariableDefinition(v.DisplayName, v.Units, v.Description);
}
}
}
}
return(new FetchConfiguration(utcTime, dataSourcesList.ToArray(), supportedVars.Values.ToArray()));
}
}
public IEnumerable <string> DataSourceInfo(string name, DateTime?timestamp = null)
{
if (timestamp == null)
{
timestamp = DateTime.UtcNow;
}
var ds = db.GetDataSources(timestamp).Where(d => d.Name == name).FirstOrDefault();
if (ds == null)
{
throw new Exception("Data source with specified name is not found");
}
StringBuilder sb = new StringBuilder();
sb.AppendFormat("[{0}] {1}\n", ds.ID, ds.Name);
sb.AppendFormat("Description: {0}\n", ds.Description);
sb.AppendFormat("Copyright: {0}\n", ds.Copyright);
if (String.IsNullOrEmpty(ds.FullClrTypeName))
{
sb.AppendFormat("Remote service uri: {0}\n", ds.Uri);
sb.AppendFormat("Remove data source id: {0}\n", ds.Uri);
}
else
{
sb.AppendFormat("Handler: {0}\n", ds.FullClrTypeName);
sb.AppendFormat("Dataset uri: {0}\n", ds.Uri);
}
var mappings = db.GetMapping(timestamp, name);
sb.AppendFormat("Mappings: " + String.Join(", ", mappings.Select(
m => String.Concat(
m.DataVariableName,
(bool)m.IsOutbound ? ">" : "<",
m.FetchVariableName))) + "\n");
return(new string[] { sb.ToString() });
}
public void VariableTest()
{
db.TruncateTables();
db.AddDataSource(
"WorldClim 1.4",
"A set of global climate layers (climate grids) with a spatial resolution of a square kilometer",
"The database is documented in this article: Hijmans, R.J., S.E. Cameron, J.L. Parra, P.G. Jones and A. Jarvis, 2005. Very high resolution interpolated climate surfaces for global land areas. International Journal of Climatology 25: 1965-1978.", "Microsoft.Research.Science.FetchClimate2.DataSources.CRUProcessor, NCEPReanalysisDataSource",
"msds:az?name=CRU_CL_2_0&DefaultEndpointsProtocol=http&AccountName=fetch&AccountKey=1Y0EOrnCX6ULY8c3iMHg9rrul2BWbPHKsHUceZ7SSh+ShM/q9K0ml49gQm+PE7G7i7zCvrpuT",
null, null);
db.AddVariable("MyVariable", "MyDescription", "MyUnits");
db.AddVariable("MyVariable2", "MyDescription2", "MyUnits2");
db.AddDataSource(
"NCEP/NCAR Reanalysis 1 (regular grid)",
"The NCEP/NCAR Reanalysis 1 project is using a state-of-the-art analysis/forecast system to perform data assimilation using past data from 1948 to the present",
"NCEP Reanalysis data provided by the NOAA/OAR/ESRL PSD, Boulder, Colorado, USA, from their Web site at http://www.esrl.noaa.gov/psd/",
"Microsoft.Research.Science.FetchClimate2.DataSources.NCEPReanalysisRegularGridDataSource, NCEPReanalysisDataSource",
"msds:az?name=ReanalysisRegular&DefaultEndpointsProtocol=http&AccountName=fetch&AccountKey=1Y0EOrnCX6ULY8c3iMHg9rrul2BWbPHKsHUceZ7SSh+ShM/q9K0ml49gQm+PE7G7i7zCvrpuT",
null, null);
//STEP 1
DateTime TIME_BEFORE_INSERTING = DateTime.UtcNow;
Thread.Sleep(time);
db.SetMapping("NCEP/NCAR Reanalysis 1 (regular grid)", "MyVariable", "TestDataSourceVariable", true, true);
DateTime TIME_MIDDLE_INSERTING = DateTime.UtcNow;
Thread.Sleep(time);
db.SetMapping("WorldClim 1.4", "MyVariable", "TestDataSourceVariable", true, true);
Thread.Sleep(time);
db.SetMapping("WorldClim 1.4", "MyVariable2", "TestDataSourceVariable2", true, true);
Thread.Sleep(time);
db.SetMapping("WorldClim 1.4", "MyVariable", "TestDataSourceVariable", true, false);
Thread.Sleep(time);
var Variables = db.GetVariablesForDataSource(DateTime.UtcNow, "WorldClim 1.4").ToArray();
Assert.AreEqual(1, Variables.Length);
Assert.AreEqual("MyVariable2", Variables[0].DisplayName);
Assert.AreEqual("MyDescription2", Variables[0].Description);
Assert.AreEqual("MyUnits2", Variables[0].Units);
//STEP 2
//var EnvVariables = db.GetEnvVariables(TIME_MIDDLE_INSERTING).ToArray();
//Assert.AreEqual(1, EnvVariables.Length);
var EnvVariables = db.GetEnvVariables(/*DateTime.Now*/).ToArray();
Assert.AreEqual(2, EnvVariables.Length);
//STEP 3
var DataSources = db.GetDataSourcesForVariable(DateTime.UtcNow, "MyVariable").ToArray();
Assert.AreEqual(1, DataSources.Length);
//STEP 4
var Mappings = db.GetMapping(TIME_BEFORE_INSERTING, "NCEP/NCAR Reanalysis 1 (regular grid)").ToArray();
Assert.AreEqual(0, Mappings.Length);
Mappings = db.GetMapping(DateTime.UtcNow, "NCEP/NCAR Reanalysis 1 (regular grid)").ToArray();
Assert.AreEqual(1, Mappings.Length);
db.TruncateTables();
}
