private void ExecuteWithDatabaseInternal(Action <SystemsDatabaseConnection> action, bool usetxnlock = false, SQLExtConnection.AccessMode mode = SQLExtConnection.AccessMode.Reader)
{
SQLExtTransactionLock <SQLiteConnectionSystem> tl = null;
try
{
if (usetxnlock)
{
tl = new SQLExtTransactionLock <SQLiteConnectionSystem>();
if (mode == SQLExtConnection.AccessMode.Reader)
{
tl.OpenReader();
}
else
{
tl.OpenWriter();
}
}
using (var conn = new SystemsDatabaseConnection(mode: mode))
{
action(conn);
}
}
finally
{
tl?.Dispose();
}
}
static private List<ISystem> FindSystemWildcard(string name, SystemsDatabaseConnection cn, int limit = int.MaxValue)
{
var list = DB.SystemsDB.FindStarWildcard(name, cn.Connection, limit);
if (list != null)
{
foreach (var x in list)
AddToCache(x);
}
return list;
}
public static ISystem GetSystemNearestTo(Point3D currentpos,
Point3D wantedpos,
double maxfromcurpos,
double maxfromwanted,
int routemethod,
int limitto,
SystemsDatabaseConnection cn)
{
ISystem sys = DB.SystemsDB.GetSystemNearestTo(currentpos, wantedpos, maxfromcurpos, maxfromwanted, routemethod, cn.Connection, (s) => AddToCache(s), limitto);
return(sys);
}
public static ISystem FindSystem(ISystem find, SystemsDatabaseConnection cn)
{
ISystem orgsys = find;
List <ISystem> foundlist = new List <ISystem>();
lock (systemsByEdsmId) // Rob seen instances of it being locked together in multiple star distance threads, we need to serialise access to these two dictionaries
{ // Concurrent dictionary no good, they could both be about to add the same thing at the same time and pass the contains test.
if (find.EDSMID > 0 && systemsByEdsmId.ContainsKey(find.EDSMID)) // add to list
{
ISystem s = systemsByEdsmId[find.EDSMID];
foundlist.Add(s);
}
if (systemsByName.ContainsKey(find.Name)) // and all names cached
{
List <ISystem> s = systemsByName[find.Name];
foundlist.AddRange(s);
}
}
ISystem found = null;
if (find.HasCoordinate && foundlist.Count > 0) // if sys has a co-ord, find the best match within 0.5 ly
{
found = NearestTo(foundlist, find, 0.5);
}
if (found == null && foundlist.Count == 1 && !find.HasCoordinate) // if we did not find one, but we have only 1 candidate, use it.
{
found = foundlist[0];
}
if (found == null) // nope, no cache, so use the db
{
//System.Diagnostics.Debug.WriteLine("Look up from DB " + sys.name + " " + sys.id_edsm);
if (find.EDSMID > 0) // if we have an ID, look it up
{
found = DB.SystemsDB.FindStar(find.EDSMID, cn.Connection);
if (found != null && find.Name.HasChars() && find.Name != "UnKnown") // if we find it, use the find name in the return as the EDSM name may be out of date..
{
found.Name = find.Name;
}
}
if (found == null && find.Name.HasChars() && find.Name != "UnKnown") // if not found by has a name
{
found = DB.SystemsDB.FindStar(find.Name, cn.Connection); // find by name, no wildcards
}
if (found == null && find.HasCoordinate) // finally, not found, but we have a co-ord, find it from the db by distance
{
found = DB.SystemsDB.GetSystemByPosition(find.X, find.Y, find.Z, cn.Connection);
}
if (found == null)
{
long newid = DB.SystemsDB.FindAlias(find.EDSMID, find.Name, cn.Connection); // is there a named alias in there due to a system being renamed..
if (newid >= 0)
{
found = DB.SystemsDB.FindStar(newid); // find it using the new id
}
}
if (found != null) // if we have a good db, go for it
{
if (find.HasCoordinate) // if find has co-ordinate, it may be more up to date than the DB, so use it
{
found.X = find.X; found.Y = find.Y; found.Z = find.Z;
}
lock (systemsByEdsmId) // lock to prevent multi change over these classes
{
if (systemsByName.ContainsKey(orgsys.Name)) // so, if name database already has name
{
systemsByName[orgsys.Name].Remove(orgsys); // and remove the ISystem if present on that orgsys
}
AddToCache(found);
}
//System.Diagnostics.Trace.WriteLine($"DB found {found.name} {found.id_edsm} sysid {found.id_edsm}");
}
return(found);
}
else
{ // FROM CACHE
//System.Diagnostics.Trace.WriteLine($"Cached reference to {found.name} {found.id_edsm}");
return(found); // no need for extra work.
}
}
public static ISystem FindSystem(string name, SystemsDatabaseConnection cn)
{
return(FindSystem(new SystemClass(name), cn));
}
public static ISystem FindSystem(long edsmid, SystemsDatabaseConnection cn)
{
return(FindSystem(new SystemClass(edsmid), cn));
}
public static ISystem FindNearestSystemTo(double x, double y, double z, double maxdistance, SystemsDatabaseConnection cn)
{
ISystem s = DB.SystemsDB.GetSystemByPosition(x, y, z, cn.Connection, maxdistance);
if (s != null)
{
AddToCache(s);
}
return(s);
}
public static ISystem GetSystemByPosition(double x, double y, double z, SystemsDatabaseConnection cn)
{
return(FindNearestSystemTo(x, y, z, 0.125, cn));
}
public static void GetSystemListBySqDistancesFrom(BaseUtils.SortedListDoubleDuplicate <ISystem> distlist, double x, double y, double z,
int maxitems,
double mindist, double maxdist, bool spherical, SystemsDatabaseConnection cn)
{
DB.SystemsDB.GetSystemListBySqDistancesFrom(distlist, x, y, z, maxitems, mindist, maxdist, spherical, cn.Connection, (s) => AddToCache(s));
}
internal static ISystem FindSystem(ISystem find, SystemsDatabaseConnection cn)
{
ISystem orgsys = find;
ISystem found = FindCachedSystem(find);
if ((found == null || found.source != SystemSource.FromEDSM) && cn != null && !SystemsDatabase.Instance.RebuildRunning) // not cached, connection and not rebuilding, try db
{
//System.Diagnostics.Debug.WriteLine("Look up from DB " + sys.name + " " + sys.id_edsm);
if (find.EDSMID > 0) // if we have an ID, look it up
{
found = DB.SystemsDB.FindStar(find.EDSMID, cn.Connection);
if (found != null && find.Name.HasChars() && find.Name != "UnKnown") // if we find it, use the find name in the return as the EDSM name may be out of date..
{
found.Name = find.Name;
}
}
if (found == null && find.Name.HasChars() && find.Name != "UnKnown") // if not found by has a name
{
found = DB.SystemsDB.FindStar(find.Name, cn.Connection); // find by name, no wildcards
}
if (found == null && find.HasCoordinate) // finally, not found, but we have a co-ord, find it from the db by distance
{
found = DB.SystemsDB.GetSystemByPosition(find.X, find.Y, find.Z, cn.Connection);
}
if (found == null)
{
long newid = DB.SystemsDB.FindAlias(find.EDSMID, find.Name, cn.Connection); // is there a named alias in there due to a system being renamed..
if (newid >= 0)
{
found = DB.SystemsDB.FindStar(newid); // find it using the new id
}
}
if (found != null) // if we have a good db, go for it
{
if (find.HasCoordinate) // if find has co-ordinate, it may be more up to date than the DB, so use it
{
found.X = find.X; found.Y = find.Y; found.Z = find.Z;
}
lock (systemsByEdsmId) // lock to prevent multi change over these classes
{
if (systemsByName.ContainsKey(orgsys.Name)) // so, if name database already has name
{
systemsByName[orgsys.Name].Remove(orgsys); // and remove the ISystem if present on that orgsys
}
AddToCache(found);
}
//System.Diagnostics.Trace.WriteLine($"DB found {found.name} {found.id_edsm} sysid {found.id_edsm}");
}
return(found);
}
else
{ // FROM CACHE
if (found != null)
{
return(found);
}
if (find.source == SystemSource.FromJournal && find.Name != null && find.HasCoordinate == true)
{
AddToCache(find);
return(find);
}
//System.Diagnostics.Trace.WriteLine($"Cached reference to {found.name} {found.id_edsm}");
return(found); // no need for extra work.
}
}
internal static ISystem FindSystem(string name, long edsmid, SystemsDatabaseConnection cn)
{
return(FindSystem(new SystemClass(name, edsmid), cn));
}
private static ISystem FindNearestSystemTo(double x, double y, double z, double maxdistance, SystemsDatabaseConnection cn)
{
//System.Diagnostics.Stopwatch sw = new System.Diagnostics.Stopwatch(); sw.Start(); System.Diagnostics.Debug.WriteLine("Look up " + x + "," + y + "," + z + " : " + maxdistance);
ISystem s = DB.SystemsDB.GetSystemByPosition(x, y, z, cn.Connection, maxdistance);
if (s != null)
{
AddToCache(s);
}
//System.Diagnostics.Debug.WriteLine(".. lookup done " + sw.ElapsedMilliseconds);
return(s);
}
