//============================================================ // ICOMPARABLE IMPLEMENTATION //============================================================ #region CompareTo(object obj) /// <summary> /// Compares the current instance with another object of the same type. /// </summary> /// <param name="obj">An object to compare with this instance.</param> /// <returns>A 32-bit signed integer that indicates the relative order of the objects being compared.</returns> /// <exception cref="ArgumentException">The <paramref name="obj"/> is not the expected <see cref="Type"/>.</exception> public int CompareTo(object obj) { //------------------------------------------------------------ // If target is a null reference, instance is greater //------------------------------------------------------------ if (obj == null) { return(1); } //------------------------------------------------------------ // Determine comparison result using property state of objects //------------------------------------------------------------ RssSource value = obj as RssSource; if (value != null) { int result = String.Compare(this.Title, value.Title, StringComparison.OrdinalIgnoreCase); result = result | Uri.Compare(this.Url, value.Url, UriComponents.AbsoluteUri, UriFormat.SafeUnescaped, StringComparison.OrdinalIgnoreCase); return(result); } else { throw new ArgumentException(String.Format(null, "obj is not of type {0}, type was found to be '{1}'.", this.GetType().FullName, obj.GetType().FullName), "obj"); } }
/// <summary> /// Compares the current instance with another object of the same type. /// </summary> /// <param name="obj">An object to compare with this instance.</param> /// <returns>A 32-bit signed integer that indicates the relative order of the objects being compared.</returns> /// <exception cref="ArgumentException">The <paramref name="obj"/> is not the expected <see cref="Type"/>.</exception> public int CompareTo(object obj) { if (obj == null) { return(1); } RssSource value = obj as RssSource; if (value != null) { int result = String.Compare(this.Title, value.Title, StringComparison.OrdinalIgnoreCase); result = result | Uri.Compare(this.Url, value.Url, UriComponents.AbsoluteUri, UriFormat.SafeUnescaped, StringComparison.OrdinalIgnoreCase); return(result); } else { throw new ArgumentException(String.Format(null, "obj is not of type {0}, type was found to be '{1}'.", this.GetType().FullName, obj.GetType().FullName), "obj"); } }
/// <summary> /// Loads this <see cref="RssItem"/> using the supplied <see cref="XPathNavigator"/> and <see cref="SyndicationResourceLoadSettings"/>. /// </summary> /// <param name="source">The <see cref="XPathNavigator"/> to extract information from.</param> /// <param name="settings">The <see cref="SyndicationResourceLoadSettings"/> used to configure the load operation.</param> /// <returns><b>true</b> if the <see cref="RssItem"/> was initialized using the supplied <paramref name="source"/>, otherwise <b>false</b>.</returns> /// <remarks> /// This method expects the supplied <paramref name="source"/> to be positioned on the XML element that represents a <see cref="RssItem"/>. /// </remarks> /// <exception cref="ArgumentNullException">The <paramref name="source"/> is a null reference (Nothing in Visual Basic).</exception> /// <exception cref="ArgumentNullException">The <paramref name="settings"/> is a null reference (Nothing in Visual Basic).</exception> public bool Load(XPathNavigator source, SyndicationResourceLoadSettings settings) { //------------------------------------------------------------ // Local members //------------------------------------------------------------ bool wasLoaded = false; //------------------------------------------------------------ // Validate parameter //------------------------------------------------------------ Guard.ArgumentNotNull(source, "source"); Guard.ArgumentNotNull(settings, "settings"); //------------------------------------------------------------ // Create namespace resolver //------------------------------------------------------------ XmlNamespaceManager manager = new XmlNamespaceManager(source.NameTable); //------------------------------------------------------------ // Attempt to extract syndication information //------------------------------------------------------------ XPathNavigator authorNavigator = source.SelectSingleNode("author", manager); XPathNavigator commentsNavigator = source.SelectSingleNode("comments", manager); XPathNavigator descriptionNavigator = source.SelectSingleNode("description", manager); XPathNavigator guidNavigator = source.SelectSingleNode("guid", manager); XPathNavigator linkNavigator = source.SelectSingleNode("link", manager); XPathNavigator publicationNavigator = source.SelectSingleNode("pubDate", manager); XPathNavigator sourceNavigator = source.SelectSingleNode("source", manager); XPathNavigator titleNavigator = source.SelectSingleNode("title", manager); XPathNodeIterator categoryIterator = source.Select("category", manager); XPathNodeIterator enclosureIterator = source.Select("enclosure", manager); //------------------------------------------------------------ // Load required/common item elements //------------------------------------------------------------ if (titleNavigator != null) { this.Title = titleNavigator.Value; wasLoaded = true; } if (descriptionNavigator != null) { this.Description = descriptionNavigator.Value; wasLoaded = true; } if (linkNavigator != null) { Uri link; if (Uri.TryCreate(linkNavigator.Value, UriKind.RelativeOrAbsolute, out link)) { this.Link = link; wasLoaded = true; } } //------------------------------------------------------------ // Load optional item elements //------------------------------------------------------------ if (authorNavigator != null) { this.Author = authorNavigator.Value; wasLoaded = true; } if (commentsNavigator != null) { Uri comments; if (Uri.TryCreate(commentsNavigator.Value, UriKind.RelativeOrAbsolute, out comments)) { this.Comments = comments; wasLoaded = true; } } if (guidNavigator != null) { RssGuid guid = new RssGuid(); if (guid.Load(guidNavigator, settings)) { this.Guid = guid; wasLoaded = true; } } if (publicationNavigator != null) { DateTime publicationDate; if (SyndicationDateTimeUtility.TryParseRfc822DateTime(publicationNavigator.Value, out publicationDate)) { this.PublicationDate = publicationDate; wasLoaded = true; } } if (sourceNavigator != null) { RssSource sourceFeed = new RssSource(); if (sourceFeed.Load(sourceNavigator, settings)) { this.Source = sourceFeed; wasLoaded = true; } } //------------------------------------------------------------ // Load item collection elements //------------------------------------------------------------ if (categoryIterator != null && categoryIterator.Count > 0) { while (categoryIterator.MoveNext()) { RssCategory category = new RssCategory(); if (category.Load(categoryIterator.Current, settings)) { this.Categories.Add(category); } } } if (enclosureIterator != null && enclosureIterator.Count > 0) { while (enclosureIterator.MoveNext()) { RssEnclosure enclosure = new RssEnclosure(); if (enclosure.Load(enclosureIterator.Current, settings)) { this.Enclosures.Add(enclosure); } } } //------------------------------------------------------------ // Attempt to extract syndication extension information //------------------------------------------------------------ SyndicationExtensionAdapter adapter = new SyndicationExtensionAdapter(source, settings); adapter.Fill(this); return(wasLoaded); }
/// <summary> /// Loads this <see cref="RssItem"/> using the supplied <see cref="XPathNavigator"/>. /// </summary> /// <param name="source">The <see cref="XPathNavigator"/> to extract information from.</param> /// <returns><b>true</b> if the <see cref="RssItem"/> was initialized using the supplied <paramref name="source"/>, otherwise <b>false</b>.</returns> /// <remarks> /// This method expects the supplied <paramref name="source"/> to be positioned on the XML element that represents a <see cref="RssItem"/>. /// </remarks> /// <exception cref="ArgumentNullException">The <paramref name="source"/> is a null reference (Nothing in Visual Basic).</exception> public bool Load(XPathNavigator source) { bool wasLoaded = false; Guard.ArgumentNotNull(source, "source"); XmlNamespaceManager manager = new XmlNamespaceManager(source.NameTable); XPathNavigator authorNavigator = source.SelectSingleNode("author", manager); XPathNavigator commentsNavigator = source.SelectSingleNode("comments", manager); XPathNavigator descriptionNavigator = source.SelectSingleNode("description", manager); XPathNavigator guidNavigator = source.SelectSingleNode("guid", manager); XPathNavigator linkNavigator = source.SelectSingleNode("link", manager); XPathNavigator publicationNavigator = source.SelectSingleNode("pubDate", manager); XPathNavigator sourceNavigator = source.SelectSingleNode("source", manager); XPathNavigator titleNavigator = source.SelectSingleNode("title", manager); XPathNodeIterator categoryIterator = source.Select("category", manager); XPathNodeIterator enclosureIterator = source.Select("enclosure", manager); if (titleNavigator != null) { this.Title = titleNavigator.Value; wasLoaded = true; } if (descriptionNavigator != null) { this.Description = descriptionNavigator.Value; wasLoaded = true; } if (linkNavigator != null) { Uri link; if (Uri.TryCreate(linkNavigator.Value, UriKind.RelativeOrAbsolute, out link)) { this.Link = link; wasLoaded = true; } } if (authorNavigator != null) { this.Author = authorNavigator.Value; wasLoaded = true; } if (commentsNavigator != null) { Uri comments; if (Uri.TryCreate(commentsNavigator.Value, UriKind.RelativeOrAbsolute, out comments)) { this.Comments = comments; wasLoaded = true; } } if (guidNavigator != null) { RssGuid guid = new RssGuid(); if (guid.Load(guidNavigator)) { this.Guid = guid; wasLoaded = true; } } if (publicationNavigator != null) { DateTime publicationDate; if (SyndicationDateTimeUtility.TryParseRfc822DateTime(publicationNavigator.Value, out publicationDate)) { this.PublicationDate = publicationDate; wasLoaded = true; } } if (sourceNavigator != null) { RssSource sourceFeed = new RssSource(); if (sourceFeed.Load(sourceNavigator)) { this.Source = sourceFeed; wasLoaded = true; } } if (categoryIterator != null && categoryIterator.Count > 0) { while (categoryIterator.MoveNext()) { RssCategory category = new RssCategory(); if (category.Load(categoryIterator.Current)) { this.Categories.Add(category); } } } if (enclosureIterator != null && enclosureIterator.Count > 0) { while (enclosureIterator.MoveNext()) { RssEnclosure enclosure = new RssEnclosure(); if (enclosure.Load(enclosureIterator.Current)) { this.Enclosures.Add(enclosure); } } } return(wasLoaded); }
/// <summary> /// Loads this <see cref="RssItem"/> using the supplied <see cref="XPathNavigator"/> and <see cref="SyndicationResourceLoadSettings"/>. /// </summary> /// <param name="source">The <see cref="XPathNavigator"/> to extract information from.</param> /// <param name="settings">The <see cref="SyndicationResourceLoadSettings"/> used to configure the load operation.</param> /// <returns><b>true</b> if the <see cref="RssItem"/> was initialized using the supplied <paramref name="source"/>, otherwise <b>false</b>.</returns> /// <remarks> /// This method expects the supplied <paramref name="source"/> to be positioned on the XML element that represents a <see cref="RssItem"/>. /// </remarks> /// <exception cref="ArgumentNullException">The <paramref name="source"/> is a null reference (Nothing in Visual Basic).</exception> /// <exception cref="ArgumentNullException">The <paramref name="settings"/> is a null reference (Nothing in Visual Basic).</exception> public bool Load(XPathNavigator source, SyndicationResourceLoadSettings settings) { //------------------------------------------------------------ // Local members //------------------------------------------------------------ bool wasLoaded = false; //------------------------------------------------------------ // Validate parameter //------------------------------------------------------------ Guard.ArgumentNotNull(source, "source"); Guard.ArgumentNotNull(settings, "settings"); //------------------------------------------------------------ // Create namespace resolver //------------------------------------------------------------ XmlNamespaceManager manager = new XmlNamespaceManager(source.NameTable); //------------------------------------------------------------ // Attempt to extract syndication information //------------------------------------------------------------ XPathNavigator authorNavigator = source.SelectSingleNode("author", manager); XPathNavigator commentsNavigator = source.SelectSingleNode("comments", manager); XPathNavigator descriptionNavigator = source.SelectSingleNode("description", manager); XPathNavigator guidNavigator = source.SelectSingleNode("guid", manager); XPathNavigator linkNavigator = source.SelectSingleNode("link", manager); XPathNavigator publicationNavigator = source.SelectSingleNode("pubDate", manager); XPathNavigator sourceNavigator = source.SelectSingleNode("source", manager); XPathNavigator titleNavigator = source.SelectSingleNode("title", manager); XPathNodeIterator categoryIterator = source.Select("category", manager); XPathNodeIterator enclosureIterator = source.Select("enclosure", manager); //------------------------------------------------------------ // Load required/common item elements //------------------------------------------------------------ if (titleNavigator != null) { this.Title = titleNavigator.Value; wasLoaded = true; } if (descriptionNavigator != null) { this.Description = descriptionNavigator.Value; wasLoaded = true; } if (linkNavigator != null) { Uri link; if (Uri.TryCreate(linkNavigator.Value, UriKind.RelativeOrAbsolute, out link)) { this.Link = link; wasLoaded = true; } } //------------------------------------------------------------ // Load optional item elements //------------------------------------------------------------ if (authorNavigator != null) { this.Author = authorNavigator.Value; wasLoaded = true; } if (commentsNavigator != null) { Uri comments; if (Uri.TryCreate(commentsNavigator.Value, UriKind.RelativeOrAbsolute, out comments)) { this.Comments = comments; wasLoaded = true; } } if (guidNavigator != null) { RssGuid guid = new RssGuid(); if (guid.Load(guidNavigator, settings)) { this.Guid = guid; wasLoaded = true; } } if (publicationNavigator != null) { DateTime publicationDate; if (SyndicationDateTimeUtility.TryParseRfc822DateTime(publicationNavigator.Value, out publicationDate)) { this.PublicationDate = publicationDate; wasLoaded = true; } } if (sourceNavigator != null) { RssSource sourceFeed = new RssSource(); if (sourceFeed.Load(sourceNavigator, settings)) { this.Source = sourceFeed; wasLoaded = true; } } //------------------------------------------------------------ // Load item collection elements //------------------------------------------------------------ if (categoryIterator != null && categoryIterator.Count > 0) { while (categoryIterator.MoveNext()) { RssCategory category = new RssCategory(); if (category.Load(categoryIterator.Current, settings)) { this.Categories.Add(category); } } } if (enclosureIterator != null && enclosureIterator.Count > 0) { while (enclosureIterator.MoveNext()) { RssEnclosure enclosure = new RssEnclosure(); if (enclosure.Load(enclosureIterator.Current, settings)) { this.Enclosures.Add(enclosure); } } } //------------------------------------------------------------ // Attempt to extract syndication extension information //------------------------------------------------------------ SyndicationExtensionAdapter adapter = new SyndicationExtensionAdapter(source, settings); adapter.Fill(this); return wasLoaded; }