private static bool WithingWriteLock_TryRegisterId <T>(SridItem item, T value) where T : Enum
{
if (_catalog[item.SRID] != item)
{
throw new InvalidOperationException();
}
int n = GetIdType <T>();
while (_dicts.Count <= n)
{
_dicts.Add(null);
}
if (_dicts[n] == null)
{
_dicts[n] = new Dictionary <T, SridItem>();
}
if (_dicts[n].Contains(value))
{
return(false);
}
_dicts[n].Add(value, item);
item.SetId(n, value);
return(true);
}
/// <summary>
///
/// </summary>
/// <typeparam name="T"></typeparam>
/// <param name="item"></param>
/// <param name="value"></param>
public static void RegisterId <T>(SridItem item, T value)
where T : struct, Enum
{
if (!TryRegisterId(item, value))
{
throw new InvalidOperationException();
}
}
private static SridItem WithinWriteLock_Register(CoordinateReferenceSystem crs, int withSrid)
{
SridItem added = new SridItem(withSrid, crs);
_registered.Add(crs, added);
_catalog.Add(withSrid, added);
return(added);
}
/// <summary>
/// Gets the SRID item by id
/// </summary>
/// <param name="srid"></param>
/// <param name="item"></param>
/// <returns></returns>
/// <exception cref="IndexOutOfRangeException"></exception>
/// <exception cref="ArgumentException"></exception>
public static bool TryGetByValue(int srid, out SridItem item)
{
using (_rwl.WithReadLock())
{
if (_catalog.TryGetValue(srid, out item))
{
return(true);
}
item = null;
return(false);
}
}
static SridItem WithinWriteLock_Register(CoordinateReferenceSystem crs)
{
while (_catalog.ContainsKey(_nextId))
{
_nextId--;
}
SridItem added = new SridItem(_nextId, crs);
_registered.Add(crs, added);
_catalog.Add(_nextId, added);
return(added);
}
/// <summary>
///
/// </summary>
/// <typeparam name="T"></typeparam>
/// <param name="item"></param>
/// <param name="value"></param>
/// <returns></returns>
public static bool TryRegisterId <T>(SridItem item, T value)
where T : Enum
{
if (item == null)
{
throw new ArgumentNullException(nameof(item));
}
if (!_catalog.TryGetValue(item.SRID, out var vv) || !ReferenceEquals(vv, item))
{
throw new ArgumentOutOfRangeException(nameof(item));
}
using (_rwl.WithWriteLock())
{
return(WithingWriteLock_TryRegisterId(item, value));
}
}
/// <summary>
///
/// </summary>
/// <typeparam name="T"></typeparam>
/// <param name="key"></param>
/// <param name="item"></param>
/// <returns></returns>
public static bool TryGetById <T>(T key, out SridItem item)
where T : struct, Enum
{
item = null;
using (_rwl.WithReadLock())
{
int n = GetIdType <T>();
if (n >= _dicts.Count)
{
return(false);
}
IReadOnlyDictionary <T, SridItem> dict = (IReadOnlyDictionary <T, SridItem>)_dicts[n];
if (dict?.TryGetValue(key, out item) ?? false)
{
return(true);
}
return(false);
}
}
public static bool GetByValue(int srid, out SridItem item)
{
return(TryGetByValue(srid, out item));
}