/// <summary>
/// Render widget
/// Return render result
/// </summary>
/// <param name="context">Template context</param>
/// <param name="widget">Template widget</param>
/// <returns></returns>
public virtual string RenderWidget(Context context, TemplateWidget widget)
{
// Get from cache
var info = GetWidgetInfo(widget.Path);
IKeyValueCache <string, string> renderCache = null;
string key = widget.GetCacheKey();
string renderResult = null;
if (info.CacheTime > 0)
{
renderCache = WidgetRenderCache.GetOrAdd(info.CacheBy ?? "", _ => {
var cacheFactory = Application.Ioc.Resolve <ICacheFactory>();
var policyNames = info.GetCacheIsolationPolicyNames();
return(cacheFactory.CreateCache <string, string>(
CacheFactoryOptions.Default.WithIsolationPolicies(policyNames)));
});
renderResult = renderCache.GetOrDefault(key);
if (renderResult != null)
{
return(renderResult);
}
}
// Render widget
var renderer = Application.Ioc.Resolve <ITemplateWidgetRenderer>();
renderResult = renderer.Render(context, widget);
// Store to cache
if (info.CacheTime > 0)
{
renderCache.Put(key, renderResult, TimeSpan.FromSeconds(info.CacheTime));
}
return(renderResult);
}
/// <summary>
/// Get cached value<br/>
/// Generate a new value and store it to cache if the no exist value or exist value expired<br/>
/// Attention: This is not an atomic operation<br/>
/// 获取缓存值<br/>
/// 如果值不存在或已过期则创建一个新的值并储存<br/>
/// 注意: 这不是原子操作</summary>
/// <param name="cache">Cache</param>
/// <param name="key">Key</param>
/// <param name="creator">Function to create default value</param>
/// <param name="keepTime">Keep time</param>
/// <returns></returns>
/// <example>
/// <code language="cs">
/// var cache = new MemoryCache<int, string>();
/// var cached = cache.GetOrDefault(1, () => "123", TimeSpan.FromSeconds(100));
/// </code>
/// </example>
public static TValue GetOrCreate <TKey, TValue>(
this IKeyValueCache <TKey, TValue> cache,
TKey key, Func <TValue> creator, TimeSpan keepTime)
{
TValue value;
if (keepTime == TimeSpan.Zero || !cache.TryGetValue(key, out value))
{
value = creator();
cache.Put(key, value, keepTime);
}
return(value);
}
/// <summary>
/// Render widget
/// Return reder result
/// </summary>
/// <param name="context">Template context</param>
/// <param name="widget">Template widget</param>
/// <returns></returns>
public virtual string RenderWidget(Context context, TemplateWidget widget)
{
// Get from cache
var info = GetWidgetInfo(widget.Path);
IKeyValueCache <string, string> renderCache = null;
string key = null;
string renderResult = null;
if (info.CacheTime > 0)
{
renderCache = WidgetRenderCache.GetOrAdd(info.CacheBy ?? "", _ => {
var cacheFactory = Application.Ioc.Resolve <ICacheFactory>();
var policyNames = info.GetCacheIsolationPolicyNames();
return(cacheFactory.CreateCache <string, string>(
CacheFactoryOptions.Default.WithIsolationPolicies(policyNames)));
});
key = widget.GetCacheKey();
renderResult = renderCache.GetOrDefault(key);
if (renderResult != null)
{
return(renderResult);
}
}
// Render widget
var writer = new StringWriter();
writer.Write($"<div class='template_widget' data-widget='{key}'>");
var scope = Hash.FromAnonymousObject(widget.Args);
context.Stack(scope, () => {
var includeTag = new Include();
var htmlPath = widget.Path + TemplateWidgetInfo.HtmlExtension;
includeTag.Initialize("include", htmlPath, null);
includeTag.Render(context, writer);
});
writer.Write("</div>");
renderResult = writer.ToString();
// Store to cache
if (info.CacheTime > 0)
{
renderCache.Put(key, renderResult, TimeSpan.FromSeconds(info.CacheTime));
}
return(renderResult);
}
