//performs an aggregation search based on a single aggregation (can be used to remove aggregation as well
public static void Perform_Aggregation_Search(string[] aggregationIds, Custom_Tracer Tracer)
{
//hooks (eventual expansion)
int HOOK_maxFIDCount = 8;
#region FIDs Support
//get fids
//old
if (HttpContext.Current.Session["FIDKey"] == null)
HttpContext.Current.Session["FIDKey"] = ""; //init
string FIDKey = HttpContext.Current.Session["FIDKey"].ToString();
List<string> FIDs = (List<string>)HttpContext.Current.Cache[FIDKey];
List<string> temp_FIDs = new List<string>();
foreach (string FID in FIDs)
{
//add the metadata name (converted to dbColumn name format)
temp_FIDs.Add(FID.Replace(" ", "_"));
}
//make sure we have alll the FIDs, if not create blank holders
if (HOOK_maxFIDCount > temp_FIDs.Count)
{
while (HOOK_maxFIDCount > temp_FIDs.Count)
{
temp_FIDs.Add("");
}
}
#endregion
#region MSRKey Support
int MSRKeyHashSpecial = 0;
foreach (string aggregationId in aggregationIds)
{
byte[] tempAggChars = Encoding.ASCII.GetBytes(aggregationId);
foreach (byte tempAggChar in tempAggChars)
{
MSRKeyHashSpecial += Convert.ToInt32(tempAggChar);
}
}
//finish processing msrkeyhash and store
MSRKeyHashSpecial = Convert.ToInt32(MSRKeyHashSpecial * aggregationIds.Length);
HttpContext.Current.Session["MapSearchResultsKey"] = "MapSearchResults_" + MSRKeyHashSpecial.ToString();
#endregion
#region search the database for all items in all of the provided aggregationPermissions and merge them into one datatable
//define MSR support objects
DataTable searchResults = new DataTable();
DataTable displaySearchResults = new DataTable();
//create MSR columns
searchResults.Columns.Add("ItemID", typeof(string));
searchResults.Columns.Add("Point_Latitude", typeof(string));
searchResults.Columns.Add("Point_Longitude", typeof(string));
searchResults.Columns.Add("Start_DateTime", typeof(string));
searchResults.Columns.Add("End_DateTime", typeof(string));
#region create MSR filter columns
//get the db column name for each filter
foreach (string filterName in FIDs)
{
searchResults.Columns.Add(filterName.Replace(" ", "_"), typeof(string));
}
//determine if we have used all 8 of the real filters, if not, create gap (8 + x where x= non fid column count to date)
for (int i = searchResults.Columns.Count; i < (8 + 5); i++)
{
searchResults.Columns.Add("empty" + i.ToString(), typeof(string));
//FIDs.Add("empty" + i.ToString());
FIDs.Add("");
}
#endregion
//create DSR columns
displaySearchResults.Columns.Add("ItemID", typeof(string));
displaySearchResults.Columns.Add("Point_Latitude", typeof(string));
displaySearchResults.Columns.Add("Point_Longitude", typeof(string));
//check to see if we already have msr in cache, else get a new msr
string MSRKey = HttpContext.Current.Session["MapSearchResultsKey"].ToString();
if (HttpContext.Current.Cache[MSRKey] == null)
{
#region Create New MSR
//temp objects
List<DataTable> temp_Tables = new List<DataTable>(); //change to dataset?
DataTable temp_searchResults = new DataTable();
//holds bounds calculator fields
double swx = -1;
double swy = -1;
double nex = -1;
double ney = -1;
//search for all items in each collection (handles multiple aggregationPermissions)
foreach (string aggregationId in aggregationIds)
{
temp_Tables.Add(SobekCM_Database.Get_All_Items_By_AggregationID(aggregationId, temp_FIDs, Tracer));
}
//merge the tables if there are multiple aggregationPermissions
foreach (DataTable temp_Table in temp_Tables)
{
temp_searchResults.Merge(temp_Table);
}
//go through each item from search and it and its metadata to MSR
foreach (DataRow searchResult in temp_searchResults.Rows)
{
//define holders
string a = String.Empty;
string b = String.Empty;
string c = String.Empty;
string d = String.Empty;
string e = String.Empty;
//get itemID
if(searchResult["ItemID"]!=null)
a = searchResult["ItemID"].ToString();
//get lat/long
if (searchResult["MainLatitude"] != null)
b = searchResult["MainLatitude"].ToString();
if (searchResult["MainLongitude"] != null)
c = searchResult["MainLongitude"].ToString();
//fallback to spatial kml
if (string.IsNullOrEmpty(b))
{
string[] temp = searchResult["Spatial_KML"].ToString().Split('|');
//is this a point?
if (temp.Length == 2)
{
string[] temp2 = temp[1].Split(',');
b = temp2[0]; //lat
c = temp2[1]; //lng
}
}
//work with bounds calculator
if (!string.IsNullOrEmpty(b))
{
if ((Convert.ToDouble(b) < swx) || (swx == -1))
swx = Convert.ToDouble(b);
if ((Convert.ToDouble(b) > nex) || (swy == -1))
nex = Convert.ToDouble(b);
if ((Convert.ToDouble(c) < swy) || (nex == -1))
swy = Convert.ToDouble(c);
if ((Convert.ToDouble(c) > ney) || (ney == -1))
ney = Convert.ToDouble(c);
}
//handle start datetime
if (searchResult["PubDate"] != null)
d = searchResult["PubDate"].ToString();
else
if (searchResult["CreateDate"] != null)
d = searchResult["CreateDate"].ToString();
//handle end datetime
if (searchResult["PubDate"] != null)
e = searchResult["PubDate"].ToString();
else
if (searchResult["CreateDate"] != null)
e = searchResult["CreateDate"].ToString();
List<string> filterValues = new List<string>();
foreach (string filterName in FIDs)
{
//hande empty filter slots
//if (filterName.IndexOf("empty") != -1)
if (string.IsNullOrEmpty(filterName))
filterValues.Add("");
else
filterValues.Add(searchResult[filterName.Replace(" ", "_")].ToString());
}
//add to the DSR (id/lat/lng) only if lat/lng not null
if (!string.IsNullOrEmpty(b))
displaySearchResults.Rows.Add(a, b, c);
//add all to search results (with 8 fids)
searchResults.Rows.Add(a, b, c, d, e, filterValues[0], filterValues[1], filterValues[2], filterValues[3], filterValues[4], filterValues[5], filterValues[6], filterValues[7]);
}
//add to collection level params to search results
searchResults.Rows.Add("swBounds", swx.ToString(), swy.ToString(), "", "", "", "", "", "", "", "", "", "");
searchResults.Rows.Add("neBounds", nex.ToString(), ney.ToString(), "", "", "", "", "", "", "", "", "", "");
//add to collection level params to display search results
displaySearchResults.Rows.Add("swBounds", swx.ToString(), swy.ToString());
displaySearchResults.Rows.Add("neBounds", nex.ToString(), ney.ToString());
//assign and hold the current search result datatable, from now on we will be using this as the base layer..
HttpContext.Current.Cache[MSRKey] = searchResults;
HttpContext.Current.Cache[MSRKey + "_Created"] = DateTime.Now;
#endregion
}
else
{
if (HttpContext.Current.Cache[MSRKey + "_Created"] != null)
{
//determine if MSR is more than 30 mins old
if ((DateTime.Now.Subtract(Convert.ToDateTime(HttpContext.Current.Cache[MSRKey + "_Created"].ToString())).TotalMinutes) > 30)
{
#region Create new MSR
//temp objects
List<DataTable> temp_Tables = new List<DataTable>(); //change to dataset?
DataTable temp_searchResults = new DataTable();
//holds bounds calculator fields
double swx = -1;
double swy = -1;
double nex = -1;
double ney = -1;
//search for all items in each collection (handles multiple aggregationPermissions)
foreach (string aggregationId in aggregationIds)
{
temp_Tables.Add(SobekCM_Database.Get_All_Items_By_AggregationID(aggregationId, temp_FIDs, Tracer));
}
//merge the tables if there are multiple aggregationPermissions
foreach (DataTable temp_Table in temp_Tables)
{
temp_searchResults.Merge(temp_Table);
}
//go through each item from search and it and its metadata to MSR
foreach (DataRow searchResult in temp_searchResults.Rows)
{
//get itemID
string a = searchResult["ItemID"].ToString();
//get lat/long
string b = searchResult["MainLatitude"].ToString();
string c = searchResult["MainLongitude"].ToString();
//fallback to spatial kml
if (string.IsNullOrEmpty(b))
{
string[] temp = searchResult["Spatial_KML"].ToString().Split(',');
//is this a point?
if (temp.Length == 2)
{
b = temp[0].Replace("P|", "").Replace("A|", "");
c = temp[1];
}
}
//work with bounds calculator
if (!string.IsNullOrEmpty(b))
{
if ((Convert.ToDouble(b) < swx) || (swx == -1))
swx = Convert.ToDouble(b);
if ((Convert.ToDouble(b) > nex) || (swy == -1))
nex = Convert.ToDouble(b);
if ((Convert.ToDouble(c) < swy) || (nex == -1))
swy = Convert.ToDouble(c);
if ((Convert.ToDouble(c) > ney) || (ney == -1))
ney = Convert.ToDouble(c);
}
//handle date time
string d = searchResult["PubDate"].ToString();
if (string.IsNullOrEmpty(d))
d = searchResult["CreateDate"].ToString();
//d = Convert.ToDateTime(d);
string e = searchResult["PubDate"].ToString();
if (string.IsNullOrEmpty(e))
e = searchResult["CreateDate"].ToString();
List<string> filterValues = new List<string>();
foreach (string filterName in FIDs)
{
//hande empty filter slots
//if (filterName.IndexOf("empty") != -1)
if (string.IsNullOrEmpty(filterName))
filterValues.Add("");
else
filterValues.Add(searchResult[filterName.Replace(" ", "_")].ToString());
}
//add to the DSR (id/lat/lng) only if lat/lng not null
if (!string.IsNullOrEmpty(b))
displaySearchResults.Rows.Add(a, b, c);
//add all to search results (with 8 fids)
searchResults.Rows.Add(a, b, c, d, e, filterValues[0], filterValues[1], filterValues[2], filterValues[3], filterValues[4], filterValues[5], filterValues[6], filterValues[7]);
}
//add to collection level params to search results
searchResults.Rows.Add("swBounds", swx.ToString(), swy.ToString(), "", "", "", "", "", "", "", "", "", "");
searchResults.Rows.Add("neBounds", nex.ToString(), ney.ToString(), "", "", "", "", "", "", "", "", "", "");
//add to collection level params to display search results
displaySearchResults.Rows.Add("swBounds", swx.ToString(), swy.ToString());
displaySearchResults.Rows.Add("neBounds", nex.ToString(), ney.ToString());
//assign and hold the current search result datatable, from now on we will be using this as the base layer..
HttpContext.Current.Cache[MSRKey] = searchResults;
HttpContext.Current.Cache[MSRKey + "_Created"] = DateTime.Now;
#endregion
}
else
{
#region Use Existing MSR
//assign cached MSR to active MSR
searchResults = HttpContext.Current.Cache[MSRKey] as DataTable;
//add to the DSR
foreach (DataRow searchResult in searchResults.Rows)
{
//get itemID
string a = searchResult["ItemID"].ToString();
//get lat/long
string b = searchResult["Point_Latitude"].ToString();
string c = searchResult["Point_Longitude"].ToString();
//add to the DSR (id/lat/lng) only if lat/lng not null
if (!string.IsNullOrEmpty(b))
displaySearchResults.Rows.Add(a, b, c);
}
#endregion
}
}
}
//call json writer with these results
object DSR = Create_JSON_Search_Results_Object(displaySearchResults);
//send json obj to page and tell page to read it (via callback results)
HttpContext.Current.Items["DSR"] = DSR;
#endregion
}
