C# UmbracoContext类代码示例

		public TemplateRenderer(UmbracoContext umbracoContext, int pageId, int? altTemplateId)
		{
			if (umbracoContext == null) throw new ArgumentNullException("umbracoContext");
			PageId = pageId;
			AltTemplate = altTemplateId;
			_umbracoContext = umbracoContext;
		}

		/// <summary>
		/// Contructor generally used for unit testing
		/// </summary>
		/// <param name="controllerFactory"></param>
		/// <param name="umbracoContext"></param>
		internal RenderRouteHandler(IControllerFactory controllerFactory, UmbracoContext umbracoContext)
		{
			if (controllerFactory == null) throw new ArgumentNullException("controllerFactory");
			if (umbracoContext == null) throw new ArgumentNullException("umbracoContext");
			_controllerFactory = controllerFactory;
			_umbracoContext = umbracoContext;
		}

		public PublishedContentRequestBuilder(PublishedContentRequest publishedContentRequest)
		{
			if (publishedContentRequest == null) throw new ArgumentNullException("publishedContentRequest");
			_publishedContentRequest = publishedContentRequest;
			_umbracoContext = publishedContentRequest.RoutingContext.UmbracoContext;
			_routingContext = publishedContentRequest.RoutingContext;
		}

        /// <summary>
        /// Gets the other urls of a published content.
        /// </summary>
        /// <param name="umbracoContext">The Umbraco context.</param>
        /// <param name="id">The published content id.</param>
        /// <param name="current">The current absolute url.</param>
        /// <returns>The other urls for the published content.</returns>
        /// <remarks>
        /// <para>Other urls are those that <c>GetUrl</c> would not return in the current context, but would be valid
        /// urls for the node in other contexts (different domain for current request, umbracoUrlAlias...).</para>
        /// </remarks>
        public IEnumerable<string> GetOtherUrls(UmbracoContext umbracoContext, int id, Uri current)
        {
            if (!FindByUrlAliasEnabled)
                return Enumerable.Empty<string>(); // we have nothing to say

            var node = umbracoContext.ContentCache.GetById(id);
            string umbracoUrlName = null;
            if (node.HasProperty(Constants.Conventions.Content.UrlAlias))
                umbracoUrlName = node.GetPropertyValue<string>(Constants.Conventions.Content.UrlAlias);
            if (string.IsNullOrWhiteSpace(umbracoUrlName))
                return Enumerable.Empty<string>();

            var n = node;
            var domainUris = DomainHelper.DomainsForNode(n.Id, current, false);
            while (domainUris == null && n != null) // n is null at root
            {
                // move to parent node
                n = n.Parent;
                domainUris = n == null ? null : DomainHelper.DomainsForNode(n.Id, current, false);
            }

            var path = "/" + umbracoUrlName;

            if (domainUris == null)
            {
                var uri = new Uri(path, UriKind.Relative);
                return new[] { UriUtility.UriFromUmbraco(uri).ToString() };
            }

            return domainUris
                .Select(domainUri => new Uri(CombinePaths(domainUri.Uri.GetLeftPart(UriPartial.Path), path)))
                .Select(uri => UriUtility.UriFromUmbraco(uri).ToString());
        }

        public virtual IPublishedContent GetByRoute(UmbracoContext umbracoContext, bool preview, string route, bool? hideTopLevelNode = null)
        {
            if (route == null) throw new ArgumentNullException("route");

            // try to get from cache if not previewing
            var contentId = preview ? 0 : _routesCache.GetNodeId(route);

            // if found id in cache then get corresponding content
            // and clear cache if not found - for whatever reason
            IPublishedContent content = null;
            if (contentId > 0)
            {
                content = GetById(umbracoContext, preview, contentId);
                if (content == null)
                    _routesCache.ClearNode(contentId);
            }

            // still have nothing? actually determine the id
            hideTopLevelNode = hideTopLevelNode ?? GlobalSettings.HideTopLevelNodeFromPath; // default = settings
            content = content ?? DetermineIdByRoute(umbracoContext, preview, route, hideTopLevelNode.Value);

            // cache if we have a content and not previewing
            if (content != null && !preview)
            {
                var domainRootNodeId = route.StartsWith("/") ? -1 : int.Parse(route.Substring(0, route.IndexOf('/')));
                var iscanon = !UnitTesting && !DomainHelper.ExistsDomainInPath(DomainHelper.GetAllDomains(false), content.Path, domainRootNodeId);
                // and only if this is the canonical url (the one GetUrl would return)
                if (iscanon)
                    _routesCache.Store(contentId, route);
            }

            return content;
        }

 /// <summary>
 /// Constructor - can be used for testing
 /// </summary>
 /// <param name="umbracoContext"></param>
 /// <param name="contentId"></param>
 /// <param name="culture"></param>
 public EnsurePublishedContentRequestAttribute(UmbracoContext umbracoContext, int contentId, string culture = null)
 {
     if (umbracoContext == null) throw new ArgumentNullException("umbracoContext");
     _umbracoContext = umbracoContext;
     _contentId = contentId;
     _culture = culture;
 }

 protected UmbracoApiController(UmbracoContext umbracoContext)
 {
     if (umbracoContext == null) throw new ArgumentNullException("umbracoContext");
     UmbracoContext = umbracoContext;
     InstanceId = Guid.NewGuid();
     Umbraco = new UmbracoHelper(umbracoContext);
 }

        /// <summary>
        /// Gets the nice url of a published content.
        /// </summary>
        /// <param name="umbracoContext">The Umbraco context.</param>
        /// <param name="id">The published content id.</param>
        /// <param name="current">The current absolute url.</param>
        /// <param name="mode">The url mode.</param>
        /// <returns>The url for the published content.</returns>
        /// <remarks>
        /// <para>The url is absolute or relative depending on <c>mode</c> and on <c>current</c>.</para>
        /// <para>If the provider is unable to provide a url, it should return <c>null</c>.</para>
        /// </remarks>
        public virtual string GetUrl(UmbracoContext umbracoContext, int id, Uri current, UrlProviderMode mode)
        {
            if (!current.IsAbsoluteUri)
                throw new ArgumentException("Current url must be absolute.", "current");

            // will not use cache if previewing
            var route = umbracoContext.ContentCache.GetRouteById(id);

            if (string.IsNullOrWhiteSpace(route))
            {
                LogHelper.Warn<DefaultUrlProvider>(
                    "Couldn't find any page with nodeId={0}. This is most likely caused by the page not being published.",
                    () => id);
                return null;
            }

            // extract domainUri and path
            // route is /<path> or <domainRootId>/<path>
            var pos = route.IndexOf('/');
            var path = pos == 0 ? route : route.Substring(pos);
            var domainUri = pos == 0 ? null : DomainHelper.DomainForNode(int.Parse(route.Substring(0, pos)), current);

            // assemble the url from domainUri (maybe null) and path
            return AssembleUrl(domainUri, path, current, mode).ToString();
        }

        IPublishedContent DetermineIdByRoute(UmbracoContext umbracoContext, bool preview, string route, bool hideTopLevelNode)
        {
            if (route == null) throw new ArgumentNullException("route");

            //the route always needs to be lower case because we only store the urlName attribute in lower case
            route = route.ToLowerInvariant();

            var pos = route.IndexOf('/');
            var path = pos == 0 ? route : route.Substring(pos);
            var startNodeId = pos == 0 ? 0 : int.Parse(route.Substring(0, pos));
            IEnumerable<XPathVariable> vars;

            var xpath = CreateXpathQuery(startNodeId, path, hideTopLevelNode, out vars);

            //check if we can find the node in our xml cache
            var content = GetSingleByXPath(umbracoContext, preview, xpath, vars == null ? null : vars.ToArray());

            // if hideTopLevelNodePath is true then for url /foo we looked for /*/foo
            // but maybe that was the url of a non-default top-level node, so we also
            // have to look for /foo (see note in ApplyHideTopLevelNodeFromPath).
            if (content == null && hideTopLevelNode && path.Length > 1 && path.IndexOf('/', 1) < 0)
            {
                xpath = CreateXpathQuery(startNodeId, path, false, out vars);
                content = GetSingleByXPath(umbracoContext, preview, xpath, vars == null ? null : vars.ToArray());
            }

            return content;
        }

        /// <summary>
        /// Initializes a new instance of the <see cref="UrlProvider"/> class with an Umbraco context and a list of url providers.
        /// </summary>
        /// <param name="umbracoContext">The Umbraco context.</param>
        /// <param name="urlProviders">The list of url providers.</param>
        /// <param name="provider"></param>
        public UrlProvider(UmbracoContext umbracoContext, IEnumerable<IUrlProvider> urlProviders, UrlProviderMode provider = UrlProviderMode.Auto)
        {
            if (umbracoContext == null) throw new ArgumentNullException("umbracoContext");

            _umbracoContext = umbracoContext;
            _urlProviders = urlProviders;

            Mode = provider;
        }

 internal RoutingContext(
     UmbracoContext umbracoContext,
     Lazy<IEnumerable<IContentFinder>> contentFinders,
     Lazy<IContentFinder> contentLastChanceFinder,
     Lazy<UrlProvider> urlProvider)
 {
     _publishedContentFinders = contentFinders;
     _publishedContentLastChanceFinder = contentLastChanceFinder;
     _urlProvider = urlProvider;
 }

	    /// <summary>
	    /// Initializes a new instance of the <see cref="RoutingContext"/> class.
	    /// </summary>
	    /// <param name="umbracoContext"> </param>
	    /// <param name="contentFinders">The document lookups resolver.</param>
	    /// <param name="contentLastChanceFinder"> </param>
	    /// <param name="urlProvider">The nice urls provider.</param>
	    internal RoutingContext(
			UmbracoContext umbracoContext,
			IEnumerable<IContentFinder> contentFinders,
			IContentFinder contentLastChanceFinder,
            UrlProvider urlProvider)
        {
			UmbracoContext = umbracoContext;
			PublishedContentFinders = contentFinders;
			PublishedContentLastChanceFinder = contentLastChanceFinder;
        	UrlProvider = urlProvider;
        }

		/// <summary>
		/// Initializes a new instance of the <see cref="RoutingContext"/> class.
		/// </summary>
		/// <param name="umbracoContext"> </param>
		/// <param name="documentLookups">The document lookups resolver.</param>
		/// <param name="documentLastChanceLookup"> </param>
		/// <param name="publishedContentStore">The content store.</param>
		/// <param name="niceUrlResolver">The nice urls resolver.</param>
		internal RoutingContext(
			UmbracoContext umbracoContext,
			IEnumerable<IPublishedContentLookup> documentLookups,
			IDocumentLastChanceLookup documentLastChanceLookup,
            IPublishedContentStore publishedContentStore,
			NiceUrlProvider niceUrlResolver)
        {
			this.UmbracoContext = umbracoContext;
			this.DocumentLookups = documentLookups;
			DocumentLastChanceLookup = documentLastChanceLookup;
			this.PublishedContentStore = publishedContentStore;
        	this.NiceUrlProvider = niceUrlResolver;
        }

        /// <summary>
        /// Initializes a new instance of the <see cref="UrlProvider"/> class with an Umbraco context and a list of url providers.
        /// </summary>
        /// <param name="umbracoContext">The Umbraco context.</param>
        /// <param name="urlProviders">The list of url providers.</param>
        internal UrlProvider(UmbracoContext umbracoContext, IEnumerable<IUrlProvider> urlProviders)
        {
            _umbracoContext = umbracoContext;
            _urlProviders = urlProviders;

            var provider = UrlProviderMode.Auto;
            Mode = provider;

            if (Enum<UrlProviderMode>.TryParse(UmbracoConfig.For.UmbracoSettings().WebRouting.UrlProviderMode, out provider))
            {
                Mode = provider;
            }            
        }

		public virtual IEnumerable<IPublishedContent> GetAtRoot(UmbracoContext umbracoContext, bool preview)
		{
			var rootMedia = global::umbraco.cms.businesslogic.media.Media.GetRootMedias();
			var result = new List<IPublishedContent>();
			//TODO: need to get a ConvertFromMedia method but we'll just use this for now.
			foreach (var media in rootMedia
				.Select(m => global::umbraco.library.GetMedia(m.Id, true))
				.Where(media => media != null && media.Current != null))
			{
				media.MoveNext();
				result.Add(ConvertFromXPathNavigator(media.Current));
			}
			return result;
		}