/// <summary>
/// 添加策略方案
/// </summary>
/// <param name="scheme"></param>
public virtual void AddScheme(FilterPolicyBuilder scheme)
{
if (_schemes.ContainsKey(scheme.Name))
{
throw new InvalidOperationException("策略方案名称已经存在: " + scheme.Name);
}
lock (_lock)
{
if (!TryAddScheme(scheme))
{
throw new InvalidOperationException("策略方案名称已经存在: " + scheme.Name);
}
}
}
/// <summary>
/// 添加策略
/// </summary>
/// <param name="name"></param>
/// <param name="configureBuilder"></param>
public void AddScheme(string name, Action <FilterPolicyBuilder> configureBuilder)
{
if (name == null)
{
throw new ArgumentNullException(nameof(name));
}
if (configureBuilder == null)
{
throw new ArgumentNullException(nameof(configureBuilder));
}
if (SchemeMap.ContainsKey(name))
{
throw new InvalidOperationException("策略名称已经存在：" + name);
}
var builder = new FilterPolicyBuilder(name);
configureBuilder(builder);
_schemes.Add(builder);
SchemeMap[name] = builder;
}
/// <summary>
/// 尝试添加策略方案
/// </summary>
/// <param name="scheme"></param>
/// <returns></returns>
public virtual bool TryAddScheme(FilterPolicyBuilder scheme)
{
if (_schemes.ContainsKey(scheme.Name))
{
return(false);
}
lock (_lock)
{
if (_schemes.ContainsKey(scheme.Name))
{
return(false);
}
if (typeof(IFilterPolicy).IsAssignableFrom(scheme.PolicyType))
{
_requestHandlers.Add(scheme);
_requestHandlersCopy = _requestHandlers.ToArray();
}
_schemes[scheme.Name] = scheme;
_schemesCopy = _schemes.Values.ToArray();
return(true);
}
}