public bool SaveTree <T>(LookupTree <T> tree) where T : class, IPayload
{
if (tree == null)
{
return(false);
}
try
{
string treePath = _pathGetPattern.Get <T>();
string treeData = JsonConvert.SerializeObject(
tree,
new JsonSerializerSettings()
{
TypeNameHandling = TypeNameHandling.Auto,
DefaultValueHandling = DefaultValueHandling.IgnoreAndPopulate,
Formatting = Formatting.Indented
});
if (string.IsNullOrWhiteSpace(treeData))
{
throw new NullReferenceException("Tree data is null.");
}
return(_dataSetPattern.Set <T>(treePath, treeData));
}
catch (Exception ex)
{
Console.WriteLine($"Save tree failed. [{ex.GetType().Name}] {ex.Message}");
return(false);
}
}
public bool TryLoadTree <T>(out LookupTree <T> loadedTree) where T : class, IPayload
{
loadedTree = null;
Type type = typeof(T);
if (_cachedTrees.TryGetValue(type, out object obj) &&
obj is LookupTree <T> tree)
{
loadedTree = tree;
return(true);
}
try
{
string treePath = _pathGetPattern.Get <T>();
string treeData = _dataGetPattern.Get <T>(treePath);
if (string.IsNullOrWhiteSpace(treeData))
{
throw new NullReferenceException("Tree data is null.");
}
loadedTree = JsonConvert.DeserializeObject <LookupTree <T> >(
treeData,
new JsonSerializerSettings()
{
TypeNameHandling = TypeNameHandling.Auto,
DefaultValueHandling = DefaultValueHandling.IgnoreAndPopulate,
Formatting = Formatting.Indented
});
_cachedTrees[type] = loadedTree ?? throw new NullReferenceException("Loaded tree is null.");
return(true);
}
catch (Exception ex)
{
Console.WriteLine($"Load tree failed. [{ex.GetType().Name}] {ex.Message}");
return(false);
}
}
/// <summary>
/// Tries to get a symbol at the specified location.
/// </summary>
/// <param name="position">The requested position.</param>
/// <param name="symbol">The symbol that could be identified at the given position, or <c>null</c> if no symbol could be identified.</param>
/// <returns><c>true</c> if a symbol was found, otherwise <c>false</c>.</returns>
/// <exception cref="System.InvalidOperationException">Thrown if there was one more symbol at the specified position. This should never happen, unless there was an error.</exception>
public bool TryGetSymbolAt(Position position, [NotNullWhen(true)] out ILocalizableSymbol?symbol)
{
symbol = LookupTree.Query(position).SingleOrDefault();
return(symbol != null);
}