Beispiel #1
0
 /// <summary>
 /// Indicates if the object contains the specified Hour.
 /// </summary>
 /// <param name="d">The <see cref="Hour"/> instance for comparison.</param>
 /// <returns>true, if the input Hour is found; false, otherwise.</returns>
 public bool Contains(Hour d)
 {
     return(d.Equals(this & d));
 }
Beispiel #2
0
 /// <summary>
 /// Indicates if the object contains the specified Hour.
 /// </summary>
 /// <param name="d">The <see cref="Hour"/> instance for comparison.</param>
 /// <returns>true, if the input Hour is found; false, otherwise.</returns>
 public bool Contains(Hour d)
 {
     return (d.Equals(this & d));
 }
Beispiel #3
0
        /// <summary>Reads the next RssElement from the stream.</summary>
        /// <returns>An RSS Element</returns>
        /// <exception cref="InvalidOperationException">RssReader has been closed, and can not be read.</exception>
        /// <exception cref="System.IO.FileNotFoundException">RSS file not found.</exception>
        /// <exception cref="System.Xml.XmlException">Invalid XML syntax in RSS file.</exception>
        /// <exception cref="System.IO.EndOfStreamException">Unable to read an RssElement. Reached the end of the stream.</exception>
        public RssElement Read()
        {
            bool       readData     = false;
            bool       pushElement  = true;
            RssElement rssElement   = null;
            int        lineNumber   = -1;
            int        linePosition = -1;

            if (this.reader == null)
            {
                throw new InvalidOperationException("RssReader has been closed, and can not be read.");
            }

            do
            {
                pushElement = true;
                try
                {
                    readData = this.reader.Read();
                }
                catch (EndOfStreamException e)
                {
                    throw new EndOfStreamException("Unable to read an RssElement. Reached the end of the stream.", e);
                }
                catch (XmlException e)
                {
                    if (lineNumber != -1 || linePosition != -1)
                    {
                        if (this.reader.LineNumber == lineNumber && this.reader.LinePosition == linePosition)
                        {
                            throw this.exceptions.LastException;
                        }
                    }

                    lineNumber   = this.reader.LineNumber;
                    linePosition = this.reader.LinePosition;

                    this.exceptions.Add(e); // just add to list of exceptions and continue :)
                }
                if (readData)
                {
                    string readerName = this.reader.Name.ToLower();
                    switch (this.reader.NodeType)
                    {
                    case XmlNodeType.Element:
                    {
                        if (this.reader.IsEmptyElement)
                        {
                            break;
                        }
                        this.elementText = new StringBuilder();

                        switch (readerName)
                        {
                        case "item":
                            // is this the end of the channel element? (absence of </channel> before <item>)
                            if (!this.wroteChannel)
                            {
                                this.wroteChannel = true;
                                rssElement        = this.channel;                                          // return RssChannel
                                readData          = false;
                            }

                            this.item = new RssItem();         // create new RssItem
                            this.channel.Items.Add(this.item);
                            break;

                        case "source":
                            this.source      = new RssSource();
                            this.item.Source = this.source;
                            for (int i = 0; i < this.reader.AttributeCount; i++)
                            {
                                this.reader.MoveToAttribute(i);
                                switch (this.reader.Name.ToLower())
                                {
                                case "url":
                                    try
                                    {
                                        this.source.Url = new Uri(this.reader.Value);
                                    }
                                    catch (Exception e)
                                    {
                                        this.exceptions.Add(e);
                                    }
                                    break;
                                }
                            }
                            break;

                        case "enclosure":
                            this.enclosure      = new RssEnclosure();
                            this.item.Enclosure = this.enclosure;
                            for (int i = 0; i < this.reader.AttributeCount; i++)
                            {
                                this.reader.MoveToAttribute(i);
                                switch (this.reader.Name.ToLower())
                                {
                                case "url":
                                    try
                                    {
                                        this.enclosure.Url = new Uri(this.reader.Value);
                                    }
                                    catch (Exception e)
                                    {
                                        this.exceptions.Add(e);
                                    }
                                    break;

                                case "length":
                                    try
                                    {
                                        this.enclosure.Length = int.Parse(this.reader.Value);
                                    }
                                    catch (Exception e)
                                    {
                                        this.exceptions.Add(e);
                                    }
                                    break;

                                case "type":
                                    this.enclosure.Type = this.reader.Value;
                                    break;
                                }
                            }
                            break;

                        case "guid":
                            this.guid      = new RssGuid();
                            this.item.Guid = this.guid;
                            for (int i = 0; i < this.reader.AttributeCount; i++)
                            {
                                this.reader.MoveToAttribute(i);
                                switch (this.reader.Name.ToLower())
                                {
                                case "ispermalink":
                                    try
                                    {
                                        this.guid.PermaLink = bool.Parse(this.reader.Value);
                                    }
                                    catch (Exception e)
                                    {
                                        this.exceptions.Add(e);
                                    }
                                    break;
                                }
                            }
                            break;

                        case "category":
                            this.category = new RssCategory();
                            if ((string)this.xmlNodeStack.Peek() == "channel")
                            {
                                this.channel.Categories.Add(this.category);
                            }
                            else
                            {
                                this.item.Categories.Add(this.category);
                            }
                            for (int i = 0; i < this.reader.AttributeCount; i++)
                            {
                                this.reader.MoveToAttribute(i);
                                switch (this.reader.Name.ToLower())
                                {
                                case "url":
                                    goto case "domain";

                                case "domain":
                                    this.category.Domain = this.reader.Value;
                                    break;
                                }
                            }
                            break;

                        case "channel":
                            this.channel   = new RssChannel();
                            this.textInput = null;
                            this.image     = null;
                            this.cloud     = null;
                            this.source    = null;
                            this.enclosure = null;
                            this.category  = null;
                            this.item      = null;
                            break;

                        case "image":
                            this.image         = new RssImage();
                            this.channel.Image = this.image;
                            break;

                        case "textinput":
                            this.textInput         = new RssTextInput();
                            this.channel.TextInput = this.textInput;
                            break;

                        case "cloud":
                            pushElement        = false;
                            this.cloud         = new RssCloud();
                            this.channel.Cloud = this.cloud;
                            for (int i = 0; i < this.reader.AttributeCount; i++)
                            {
                                this.reader.MoveToAttribute(i);
                                switch (this.reader.Name.ToLower())
                                {
                                case "domain":
                                    this.cloud.Domain = this.reader.Value;
                                    break;

                                case "port":
                                    try
                                    {
                                        this.cloud.Port = ushort.Parse(this.reader.Value);
                                    }
                                    catch (Exception e)
                                    {
                                        this.exceptions.Add(e);
                                    }
                                    break;

                                case "path":
                                    this.cloud.Path = this.reader.Value;
                                    break;

                                case "registerprocedure":
                                    this.cloud.RegisterProcedure = this.reader.Value;
                                    break;

                                case "protocol":
                                    switch (this.reader.Value.ToLower())
                                    {
                                    case "xml-rpc":
                                        this.cloud.Protocol = RssCloudProtocol.XmlRpc;
                                        break;

                                    case "soap":
                                        this.cloud.Protocol = RssCloudProtocol.Soap;
                                        break;

                                    case "http-post":
                                        this.cloud.Protocol = RssCloudProtocol.HttpPost;
                                        break;

                                    default:
                                        this.cloud.Protocol = RssCloudProtocol.Empty;
                                        break;
                                    }
                                    break;
                                }
                            }
                            break;

                        case "rss":
                            for (int i = 0; i < this.reader.AttributeCount; i++)
                            {
                                this.reader.MoveToAttribute(i);
                                if (this.reader.Name.ToLower() == "version")
                                {
                                    switch (this.reader.Value)
                                    {
                                    case "0.91":
                                        this.rssVersion = RssVersion.RSS091;
                                        break;

                                    case "0.92":
                                        this.rssVersion = RssVersion.RSS092;
                                        break;

                                    case "2.0":
                                        this.rssVersion = RssVersion.RSS20;
                                        break;

                                    default:
                                        this.rssVersion = RssVersion.NotSupported;
                                        break;
                                    }
                                }
                            }
                            break;

                        case "rdf":
                            for (int i = 0; i < this.reader.AttributeCount; i++)
                            {
                                this.reader.MoveToAttribute(i);
                                if (this.reader.Name.ToLower() == "version")
                                {
                                    switch (this.reader.Value)
                                    {
                                    case "0.90":
                                        this.rssVersion = RssVersion.RSS090;
                                        break;

                                    case "1.0":
                                        this.rssVersion = RssVersion.RSS10;
                                        break;

                                    default:
                                        this.rssVersion = RssVersion.NotSupported;
                                        break;
                                    }
                                }
                            }
                            break;

                        case "geo:lat":
                        case "geo:long":
                        case "geo:point":
                        case "georss:point":
                        case "georss:elev":
                        case "georss:radius":
                            if (this.item.GeoPoint == null)
                            {
                                this.item.GeoPoint = new RssGeoPoint();
                            }
                            break;
                        }
                        if (pushElement)
                        {
                            this.xmlNodeStack.Push(readerName);
                        }
                        break;
                    }

                    case XmlNodeType.EndElement:
                    {
                        if (this.xmlNodeStack.Count == 1)
                        {
                            break;
                        }
                        string childElementName  = (string)this.xmlNodeStack.Pop();
                        string parentElementName = (string)this.xmlNodeStack.Peek();
                        switch (childElementName)                                 // current element
                        {
                        // item classes
                        case "item":
                            rssElement = this.item;
                            readData   = false;
                            break;

                        case "source":
                            this.source.Name = this.elementText.ToString();
                            rssElement       = this.source;
                            readData         = false;
                            break;

                        case "enclosure":
                            rssElement = this.enclosure;
                            readData   = false;
                            break;

                        case "guid":
                            this.guid.Name = this.elementText.ToString();
                            rssElement     = this.guid;
                            readData       = false;
                            break;

                        case "category":                                         // parent is either item or channel
                            this.category.Name = this.elementText.ToString();
                            rssElement         = this.category;
                            readData           = false;
                            break;

                        // channel classes
                        case "channel":
                            if (this.wroteChannel)
                            {
                                this.wroteChannel = false;
                            }
                            else
                            {
                                this.wroteChannel = true;
                                rssElement        = this.channel;
                                readData          = false;
                            }
                            break;

                        case "textinput":
                            rssElement = this.textInput;
                            readData   = false;
                            break;

                        case "image":
                            rssElement = this.image;
                            readData   = false;
                            break;

                        case "cloud":
                            rssElement = this.cloud;
                            readData   = false;
                            break;
                        }
                        switch (parentElementName)                                 // parent element
                        {
                        case "item":
                            switch (childElementName)
                            {
                            case "title":
                                this.item.Title = this.elementText.ToString();
                                break;

                            case "link":
                                this.item.Link = new Uri(this.elementText.ToString());
                                break;

                            case "description":
                                this.item.Description = this.elementText.ToString();
                                break;

                            case "author":
                                this.item.Author = this.elementText.ToString();
                                break;

                            case "comments":
                                this.item.Comments = this.elementText.ToString();
                                break;

                            case "pubdate":
                                try
                                {
                                    this.item.PubDate = DateTime.Parse(this.elementText.ToString());
                                }
                                catch (Exception e)
                                {
                                    try {
                                        string tmp = this.elementText.ToString();
                                        tmp  = tmp.Substring(0, tmp.Length - 5);
                                        tmp += "GMT";
                                        this.item.PubDate = DateTime.Parse(tmp);
                                    }
                                    catch
                                    {
                                        this.exceptions.Add(e);
                                    }
                                }
                                break;

                            case "geo:lat":
                                try
                                {
                                    this.item.GeoPoint.Lat = float.Parse(this.elementText.ToString());
                                }
                                catch (Exception e)
                                {
                                    this.exceptions.Add(e);
                                }
                                break;

                            case "geo:long":
                                try
                                {
                                    this.item.GeoPoint.Lon = float.Parse(this.elementText.ToString());
                                }
                                catch (Exception e)
                                {
                                    this.exceptions.Add(e);
                                }
                                break;

                            case "georss:point":
                                try
                                {
                                    string[] coords = this.elementText.ToString().Split(new char[] { ' ' }, StringSplitOptions.RemoveEmptyEntries);
                                    if (coords.Length == 2)
                                    {
                                        this.item.GeoPoint.Lat = float.Parse(coords[0]);
                                        this.item.GeoPoint.Lon = float.Parse(coords[1]);
                                    }
                                }
                                catch (Exception e)
                                {
                                    this.exceptions.Add(e);
                                }
                                break;
                            }
                            break;

                        case "channel":
                            switch (childElementName)
                            {
                            case "title":
                                this.channel.Title = this.elementText.ToString();
                                break;

                            case "link":
                                try
                                {
                                    this.channel.Link = new Uri(this.elementText.ToString());
                                }
                                catch (Exception e)
                                {
                                    this.exceptions.Add(e);
                                }
                                break;

                            case "description":
                                this.channel.Description = this.elementText.ToString();
                                break;

                            case "language":
                                this.channel.Language = this.elementText.ToString();
                                break;

                            case "copyright":
                                this.channel.Copyright = this.elementText.ToString();
                                break;

                            case "managingeditor":
                                this.channel.ManagingEditor = this.elementText.ToString();
                                break;

                            case "webmaster":
                                this.channel.WebMaster = this.elementText.ToString();
                                break;

                            case "rating":
                                this.channel.Rating = this.elementText.ToString();
                                break;

                            case "pubdate":
                                try
                                {
                                    this.channel.PubDate = DateTime.Parse(this.elementText.ToString());
                                }
                                catch (Exception e)
                                {
                                    this.exceptions.Add(e);
                                }
                                break;

                            case "lastbuilddate":
                                try
                                {
                                    this.channel.LastBuildDate = DateTime.Parse(this.elementText.ToString());
                                }
                                catch (Exception e)
                                {
                                    this.exceptions.Add(e);
                                }
                                break;

                            case "generator":
                                this.channel.Generator = this.elementText.ToString();
                                break;

                            case "docs":
                                this.channel.Docs = this.elementText.ToString();
                                break;

                            case "ttl":
                                try
                                {
                                    this.channel.TimeToLive = int.Parse(this.elementText.ToString());
                                }
                                catch (Exception e)
                                {
                                    this.exceptions.Add(e);
                                }
                                break;
                            }
                            break;

                        case "image":
                            switch (childElementName)
                            {
                            case "url":
                                try
                                {
                                    this.image.Url = new Uri(this.elementText.ToString());
                                }
                                catch (Exception e)
                                {
                                    this.exceptions.Add(e);
                                }
                                break;

                            case "title":
                                this.image.Title = this.elementText.ToString();
                                break;

                            case "link":
                                try
                                {
                                    this.image.Link = new Uri(this.elementText.ToString());
                                }
                                catch (Exception e)
                                {
                                    this.exceptions.Add(e);
                                }
                                break;

                            case "description":
                                this.image.Description = this.elementText.ToString();
                                break;

                            case "width":
                                try
                                {
                                    this.image.Width = Byte.Parse(this.elementText.ToString());
                                }
                                catch (Exception e)
                                {
                                    this.exceptions.Add(e);
                                }
                                break;

                            case "height":
                                try
                                {
                                    this.image.Height = Byte.Parse(this.elementText.ToString());
                                }
                                catch (Exception e)
                                {
                                    this.exceptions.Add(e);
                                }
                                break;
                            }
                            break;

                        case "textinput":
                            switch (childElementName)
                            {
                            case "title":
                                this.textInput.Title = this.elementText.ToString();
                                break;

                            case "description":
                                this.textInput.Description = this.elementText.ToString();
                                break;

                            case "name":
                                this.textInput.Name = this.elementText.ToString();
                                break;

                            case "link":
                                try
                                {
                                    this.textInput.Link = new Uri(this.elementText.ToString());
                                }
                                catch (Exception e)
                                {
                                    this.exceptions.Add(e);
                                }
                                break;
                            }
                            break;

                        case "skipdays":
                            if (childElementName == "day")
                            {
                                this.channel.SkipDays |= Day.Parse(this.elementText.ToString());
                            }
                            break;

                        case "skiphours":
                            if (childElementName == "hour")
                            {
                                this.channel.SkipHours |= Hour.Parse(this.elementText.ToString());
                            }
                            break;
                        }
                        break;
                    }

                    case XmlNodeType.Text:
                        this.elementText.Append(this.reader.Value);
                        break;

                    case XmlNodeType.CDATA:
                        this.elementText.Append(this.reader.Value);
                        break;
                    }
                }
            }while (readData);
            return(rssElement);
        }