/// <summary>
/// Add token for name
/// </summary>
/// <param name="key">token name</param>
/// <param name="token"></param>
public void Set(string key, Token token)
{
var refers = _missingTokenNames.ContainsKey(key) ? _missingTokenNames[key] : new HashSet <string>();
var missingRefees = new HashSet <string>();
foreach (var innerTokenName in TokenReplacement.FindInnerTokenNames(token))
{
if (innerTokenName == key || refers.Contains(innerTokenName))
{
throw new ConfigGenerationException($"detected circular reference in token replacement, token name:'{key}'");
}
if (_tokens.ContainsKey(innerTokenName))
{
token = TokenReplacement.ReplaceTokenWithToken(token, innerTokenName, _tokens[innerTokenName]);
if (_tokensUnresolved.ContainsKey(innerTokenName))
{
missingRefees.UnionWith(_tokensUnresolved[innerTokenName]);
}
}
else
{
missingRefees.Add(innerTokenName);
}
}
foreach (var refer in refers)
{
_tokens[refer] = TokenReplacement.ReplaceTokenWithToken(_tokens[refer], key, token);
if (_tokensUnresolved.ContainsKey(refer))
{
_tokensUnresolved[refer].Remove(key);
_tokensUnresolved[refer].UnionWith(missingRefees);
}
else
{
if (missingRefees.Count > 0)
{
_tokensUnresolved.Add(refer, missingRefees);
}
}
}
if (missingRefees.Count > 0)
{
refers.Add(key);
foreach (var refee in missingRefees)
{
_missingTokenNames.MergeKeyList(refee, refers);
}
_tokensUnresolved[key] = missingRefees;
}
_missingTokenNames.Remove(key);
_tokens[key] = token;
}
/// <summary>
/// Replace tokenized placeholders in the given text with the tokens' value from this dictionary
/// Note: the token name not found in this dictionary will not be replaced
/// </summary>
/// <param name="text">the given text to perform token replacement</param>
/// <returns></returns>
public string Resolve(string text)
{
var refees = TokenReplacement.GetReferencingTokenNames(text);
refees.IntersectWith(_tokens.Keys);
var result = text;
foreach (var refee in refees)
{
var token = _tokens[refee];
result = TokenReplacement.ReplaceStringWithToken(result, refee, token);
}
return(result);
}
