/// <summary>
/// 指定されたパスを指定されたパターンで解析し、パラメーターのコレクションを返します。
/// </summary>
/// <example>
/// var result = PathMapper.Parse("/ServiceUnit/Member/V1/Admin",
/// "/ServiceUnit/{ServiceUnitName}/{Version}/{Role}")
/// //ServiceUnitName = Member
/// //Version = V1
/// //Role = Admin
/// </example>
/// <param name="path">解析対象のパス</param>
/// <param name="pattern">解析するパターン</param>
/// <returns>パラメーターのコレクションを含む <see cref="PathMapResult"/> </returns>
public static PathMapResult Parse(string path, string pattern)
{
var result = new PathMapResult();
result.Path = path;
var regexText = regexPool.GetOrAdd(pattern, (p) =>
{
return(CreateRegexFromPattern(p));
});
var regex = new Regex(regexText, RegexOptions.Compiled);
var match = regex.Match(path);
if (!match.Success)
{
result.Success = false;
return(result);
}
var groupNames = regex.GetGroupNames();
foreach (var groupName in groupNames.Where(s => s != "0"))
{
result.Parameters.Add(groupName, match.Groups[groupName].Value);
}
result.Success = true;
return(result);
}
/// <summary>
/// 指定されたパラメーターの値をパターンに適用します。
/// </summary>
/// <example>
/// var parameter = new Dictionary<string, string>()
/// {
/// { "ServiceUnitName", "Member" },
/// { "Version", "V1" },
/// { "Role", "Admin" }
/// };
/// PathMapper.Map(parameter, "/ServiceUnit/{ServiceUnitName}/{Version}/{Role}");
/// //"/ServiceUnit/Member/V1/Admin"
/// </example>
/// <param name="parameter">パラメーター</param>
/// <param name="mapPattern">適用するパターン</param>
/// <returns>適用後の値を含む <see cref="PathMapResult"/> </returns>
public static PathMapResult Map(IDictionary <string, string> parameter, string mapPattern)
{
var result = new PathMapResult();
var regex = new Regex("{(?<key>[A-Za-z]+?)(\\s*:\\*\\s*)?}", RegexOptions.Compiled);
var hasParameter = true;
var mapPath = regex.Replace(mapPattern, match =>
{
var key = match.Groups["key"].Value;
if (parameter.ContainsKey(key))
{
return(parameter[key]);
}
hasParameter = false;
return(match.Value);
});
result.MappedPath = mapPath;
result.Success = hasParameter;
return(result);
}
