public string GetViewLocation(HttpContextBase httpContext, string key)
{
var d = GetRequestCache(httpContext);
string location;
if (!d.TryGetValue(key, out location))
{
location = _cache.GetViewLocation(httpContext, key);
d[key] = location;
}
return(location);
}
public string GetViewLocation(HttpContextBase httpContext, string key)
{
var firstLevelCache = getRequestCache(httpContext);
string location;
if (!firstLevelCache.TryGetValue(key, out location))
{
location = _secondLevelCache.GetViewLocation(httpContext, key);
firstLevelCache[key] = location;
}
return(location);
}
private string GetVirtualPath(ControllerContext controllerContext, string name, IEnumerable <string> extensions, string cacheKeyPrefix, bool useCache, out IEnumerable <string> searchedLocations)
{
//设置输出参数的默认值
searchedLocations = _emptyLocations;
//如果没有指定查找的名称则返回空(该调用方式在无母版页的视图中出现)
if (string.IsNullOrWhiteSpace(name))
{
return(string.Empty);
}
string controllerName = controllerContext.RouteData.GetRequiredString("controller");
bool nameRepresentsPath = IsSpecificPath(name);
string cacheKey = CreateCacheKey(cacheKeyPrefix, name, (nameRepresentsPath) ? string.Empty : controllerName);
if (useCache)
{
return(_viewLocationCache.GetViewLocation(controllerContext.HttpContext, cacheKey));
}
object nodePath;
//从路由数据中获取由ControllerFactory解析出的当前Controller对应的插件路径
if (!controllerContext.RouteData.DataTokens.TryGetValue("controller.path", out nodePath))
{
return(string.Empty);
}
//查找当前控制器位于插件树中的节点
var node = _pluginContext.PluginTree.Find((string)nodePath);
//获取当前插件对应的视图位置
IEnumerable <string> locations = this.GetSearchLocations((node == null ? null : node.Plugin), controllerName, name, extensions);
foreach (string location in locations)
{
if (this.FileExists(controllerContext, location))
{
_viewLocationCache.InsertViewLocation(controllerContext.HttpContext, cacheKey, location);
return(location);
}
}
//设置输出参数为所有搜索的路径
searchedLocations = locations.ToArray();
return(string.Empty);
}
public string GetViewLocation(HttpContextBase httpContext, string key)
{
key = _assemblyName + "::" + key;
return(_innerCache.GetViewLocation(httpContext, key));
}
string IViewLocationCache.GetViewLocation(System.Web.HttpContextBase httpContext, string key)
{
return(inner.GetViewLocation(httpContext, httpContext.GetTheme() + key));
}
