/// <summary>
/// 获取用于分析 HTML 文档的分析器
/// </summary>
/// <param name="contentResult">文档内容加载结果</param>
/// <returns>HTML 分析器相关信息</returns>
public static IHtmlParser GetParser(HtmlContentResult contentResult)
{
if (contentResult == null)
{
throw new ArgumentNullException("contentResult");
}
lock ( _parserProvidersSync )
{
foreach (var provider in ParserProviders)
{
var parser = provider.GetParser(contentResult.VirtualPath, contentResult.Content);
if (parser != null)
{
return(parser);
}
}
}
//默认行为
return(DefaultParserProvider.GetParser(contentResult.VirtualPath, contentResult.Content));
}
/// <summary>
/// 分析 HTML 文档，此方法会根据情况缓存文档模型
/// </summary>
/// <param name="contentResult">文档加载结果</param>
/// <returns>HTML 文档对象</returns>
public static IHtmlDocument ParseDocument(HtmlContentResult contentResult)
{
if (contentResult == null)
{
throw new ArgumentNullException("contentResult");
}
var parser = GetParser(contentResult);
return(ParseDocument(contentResult, parser));
}
/// <summary>
/// 分析 HTML 文档，此方法会根据情况缓存文档模型
/// </summary>
/// <param name="context">当前请求的 HttpContext 对象</param>
/// <param name="contentResult">文档加载结果</param>
/// <returns>HTML 文档对象</returns>
public static IHtmlDocument ParseDocument(HttpContextBase context, HtmlContentResult contentResult)
{
if (context == null)
{
throw new ArgumentNullException("context");
}
if (contentResult == null)
{
throw new ArgumentNullException("contentResult");
}
var result = GetParser(context, contentResult.ContentUri, contentResult.Content);
return(ParseDocument(context, contentResult, result));
}
/// <summary>
/// 获取用于分析 HTML 文档的分析器
/// </summary>
/// <param name="contentResult">文档内容加载结果</param>
/// <returns>HTML 分析器相关信息</returns>
public static IHtmlParser GetParser(HtmlContentResult contentResult)
{
if (contentResult == null)
{
throw new ArgumentNullException("contentResult");
}
foreach (var provider in WebServiceLocator.GetServices <IHtmlParserProvider>(contentResult.VirtualPath))
{
var parser = provider.GetParser(contentResult.VirtualPath, contentResult.Content);
if (parser != null)
{
return(parser);
}
}
return(Default.GetParser(contentResult.VirtualPath));
}
/// <summary>
/// 分析 HTML 文档，此方法会根据情况缓存文档模型
/// </summary>
/// <param name="contentResult">文档加载结果</param>
/// <param name="parser">HTML 解析器</param>
/// <returns>HTML 文档对象</returns>
public static IHtmlDocument ParseDocument(HtmlContentResult contentResult, IHtmlParser parser)
{
var domProvider = parser.DomProvider;
if (contentResult.CacheKey != null && domProvider != null)//如果可以缓存
{
var key = contentResult.CacheKey;
var cacheKey = string.Format(CultureInfo.InvariantCulture, DocumentCacheKey, contentResult.VirtualPath);
var createDocument = Cache.Get(cacheKey) as Func <IHtmlDomProvider, IHtmlDocument>;
if (createDocument != null)
{
return(createDocument(domProvider));
}
Trace("Document cache missed");
var document = ParseDocument(parser, contentResult.Content, contentResult.VirtualPath);
createDocument = document.Compile();//必须同步编译文档，否则文档对象可能被修改。
new Action(delegate
{
createDocument(domProvider);//可以异步预热，预热后再存入缓存。
Cache.Insert(cacheKey, createDocument, new CacheDependency(new string[0], new[] { key }), CacheItemPriority.High);
}
).BeginInvoke(null, null);//立即在新线程预热此方法
return(document);
}
else
{
return(ParseDocument(parser, contentResult.Content, contentResult.VirtualPath));
}
}
/// <summary>
/// 分析 HTML 文档，此方法会根据情况缓存文档模型
/// </summary>
/// <param name="context">当前请求的 HttpContext 对象</param>
/// <param name="contentResult">文档加载结果</param>
/// <param name="parserResult">解析器选择结果</param>
/// <returns>HTML 文档对象</returns>
public static IHtmlDocument ParseDocument(HttpContextBase context, HtmlContentResult contentResult, HtmlParserResult parserResult)
{
if (contentResult.CacheKey != null && parserResult.DomProvider != null)//如果可以缓存
{
var key = contentResult.CacheKey;
var cacheKey = string.Format(CultureInfo.InvariantCulture, DocumentCacheKey, contentResult.ContentUri.AbsoluteUri);
var createDocument = Cache.Get(cacheKey) as Func <IHtmlDomProvider, IHtmlDocument>;
if (createDocument != null)
{
var provider = parserResult.DomProvider;
return(createDocument(provider));
}
context.Trace.Write("Jumony for ASP.NET", "Document cache missed");
var document = ParseDocument(parserResult, contentResult.Content, contentResult.ContentUri);
createDocument = document.Compile();//必须同步编译文档，否则文档对象可能被修改。
new Action(delegate
{
createDocument(parserResult.DomProvider);//可以异步预热，预热后再存入缓存。
Cache.Insert(cacheKey, createDocument, new CacheDependency(new string[0], new[] { key }), CacheItemPriority.High);
}
).BeginInvoke(null, null);//立即在新线程预热此方法
return(document);
}
else
{
return(ParseDocument(parserResult, contentResult.Content, contentResult.ContentUri));
}
}
/// <summary>
/// 分析文档内容
/// </summary>
/// <param name="parser">分析器</param>
/// <param name="content">文档内容加载结果</param>
/// <returns>分析结果</returns>
public static IHtmlDocument Parse(this IHtmlParser parser, HtmlContentResult content)
{
return(parser.Parse(content.Content, CreateDocumentUri(content.VirtualPath)));
}
/// <summary>
/// 分析 HTML 文档，此方法会根据情况缓存文档模型
/// </summary>
/// <param name="contentResult">文档加载结果</param>
/// <param name="parser">HTML 解析器</param>
/// <returns>HTML 文档对象</returns>
public static IHtmlDocument ParseDocument( HtmlContentResult contentResult, IHtmlParser parser )
{
var domProvider = parser.DomProvider;
if ( contentResult.CacheKey != null && domProvider != null )//如果可以缓存
{
var key = contentResult.CacheKey;
var cacheKey = string.Format( CultureInfo.InvariantCulture, DocumentCacheKey, contentResult.VirtualPath );
var createDocument = Cache.Get( cacheKey ) as Func<IHtmlDomProvider, IHtmlDocument>;
if ( createDocument != null )
{
return createDocument( domProvider );
}
WebServiceLocator.GetTraceService().Trace( TraceLevel.Info, "Jumony Web", "Document cache missed" );
var document = ParseDocument( parser, contentResult.Content, contentResult.VirtualPath );
createDocument = document.Compile();//必须同步编译文档，否则文档对象可能被修改。
new Action( delegate
{
createDocument( domProvider );//可以异步预热，预热后再存入缓存。
Cache.Insert( cacheKey, createDocument, new CacheDependency( new string[0], new[] { key } ), CacheItemPriority.High );
}
).BeginInvoke( null, null );//立即在新线程预热此方法
return document;
}
else
return ParseDocument( parser, contentResult.Content, contentResult.VirtualPath );
}
/// <summary>
/// 分析 HTML 文档，此方法会根据情况缓存文档模型
/// </summary>
/// <param name="contentResult">文档加载结果</param>
/// <returns>HTML 文档对象</returns>
public static IHtmlDocument ParseDocument( HtmlContentResult contentResult )
{
if ( contentResult == null )
throw new ArgumentNullException( "contentResult" );
var parser = GetParser( contentResult );
return ParseDocument( contentResult, parser );
}
/// <summary>
/// 获取用于分析 HTML 文档的分析器
/// </summary>
/// <param name="contentResult">文档内容加载结果</param>
/// <returns>HTML 分析器相关信息</returns>
public static IHtmlParser GetParser( HtmlContentResult contentResult )
{
if ( contentResult == null )
throw new ArgumentNullException( "contentResult" );
foreach ( var provider in WebServiceLocator.GetServices<IHtmlParserProvider>( contentResult.VirtualPath ) )
{
var parser = provider.GetParser( contentResult.VirtualPath, contentResult.Content );
if ( parser != null )
return parser;
}
return Default.GetParser( contentResult.VirtualPath );
}
/// <summary>
/// 分析文档内容
/// </summary>
/// <param name="parser">分析器</param>
/// <param name="content">文档内容加载结果</param>
/// <returns>分析结果</returns>
public static IHtmlDocument Parse( this IHtmlParser parser, HtmlContentResult content )
{
return parser.Parse( content.Content, CreateDocumentUri( content.VirtualPath ) );
}
/// <summary>
/// 获取用于分析 HTML 文档的分析器
/// </summary>
/// <param name="contentResult">文档内容加载结果</param>
/// <returns>HTML 分析器相关信息</returns>
public static IHtmlParser GetParser( HtmlContentResult contentResult )
{
if ( contentResult == null )
throw new ArgumentNullException( "contentResult" );
lock ( _parserProvidersSync )
{
foreach ( var provider in ParserProviders )
{
var parser = provider.GetParser( contentResult.VirtualPath, contentResult.Content );
if ( parser != null )
return parser;
}
}
//默认行为
return DefaultParserProvider.GetParser( contentResult.VirtualPath, contentResult.Content );
}
/// <summary>
/// 分析文档内容
/// </summary>
/// <param name="parser">分析器</param>
/// <param name="content">文档内容加载结果</param>
/// <returns></returns>
public static IHtmlDocument Parse(this IHtmlParser parser, HtmlContentResult content)
{
return(parser.Parse(content.Content, content.ContentUri));
}
