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using System; |
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using System.Collections.Generic; |
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using System.Linq; |
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using System.Text; |
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using libxmltv.Interfaces; |
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using System.Xml.Linq; |
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using System.Reflection; |
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using System.IO; |
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using System.Diagnostics; |
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using System.Globalization; |
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|
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namespace libxmltv.Core |
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{ |
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[Serializable] |
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internal class XMLTVProgram : XMLTVBase<XMLTVRuntimeInstance>, IXMLTVProgram |
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{ |
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public XMLTVProgram() : base(null,XMLTVConstants.PROGRAM_ELEMENT) |
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{ |
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InternalDictionaryAddKnownProperties(); |
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|
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} |
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public XMLTVProgram(XMLTVRuntimeInstance instance, XElement node) |
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: base(instance, XMLTVConstants.PROGRAM_ELEMENT) |
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{ |
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InternalDictionaryAddKnownProperties(); |
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try { |
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xmltv_logger.Verbose.Debug.WriteLine("Creating Instance of XMLTVProgram"); |
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Create(node); |
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xmltv_logger.Verbose.Debug.WriteLine("Created Instance of XMLTVProgram"); |
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UpdateInstance(); |
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} |
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catch (IOException ex) { Debug.WriteLine(ex.ToString()); } |
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} |
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#region IXMLTVProgram members |
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//public int Id { get; set; } |
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//public DateTime Start { get; set; } |
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//public DateTime Stop { get; set; } |
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//public IXMLTVChannel Channel { get; set; } |
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//public string Title { get; set; } |
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//public string SubTitle { get; set; } |
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//public string Description { get; set; } |
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|
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private void InternalDictionaryAddKnownProperties() |
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{ |
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Properties = new Dictionary<string, object>(); |
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Properties.Add("Id", 0); |
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Properties.Add(XMLTVConstants.Programs.ProgramStart, new DateTime()); |
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Properties.Add(XMLTVConstants.Programs.ProgramStop, new DateTime()); |
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Properties.Add(XMLTVConstants.Programs.ProgramChannelId, string.Empty); |
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Properties.Add(XMLTVConstants.Programs.ProgramTitle, string.Empty); |
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Properties.Add(XMLTVConstants.Programs.ProgramSubTitle, string.Empty); |
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Properties.Add(XMLTVConstants.Programs.ProgramDescription, string.Empty); |
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} |
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|
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public Dictionary<string, object> Properties { get; private set; } |
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|
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private void InternalDictionaryTestOrThrow() |
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{ |
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if (Properties == null) { throw new NullReferenceException("Properties collection has not been initialized."); } |
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if (Properties.Count == 0) { throw new IndexOutOfRangeException("Properties collection has 0 elements."); } |
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} |
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private void InternalProperyExistsOrThrow(string name) |
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{ |
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InternalDictionaryTestOrThrow(); |
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if (!Properties.ContainsKey(name)) { throw new KeyNotFoundException(string.Format("Property '{0}' does not exist", name)); } |
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} |
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public object GetProperty(string name) |
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{ |
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InternalProperyExistsOrThrow(name); |
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return Properties[name]; |
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} |
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public void SetProperty(string name, object value) |
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{ |
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InternalProperyExistsOrThrow(name); |
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Properties[name] = value; |
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} |
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#endregion |
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public override string ToString() |
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{ |
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return string.Format("{0}: {1} - {2} ({3}) ['{4}' <==> '{5}']", |
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GetProperty("Id").ToString(), |
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GetProperty(XMLTVConstants.Programs.ProgramTitle).ToString(), |
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GetProperty(XMLTVConstants.Programs.ProgramSubTitle), ToString(), |
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GetProperty(XMLTVConstants.Programs.ProgramChannelId).ToString(), |
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((DateTime)GetProperty(XMLTVConstants.Programs.ProgramStart)).ToString("yyyy/MM/dd hh:mm tt"), |
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((DateTime)GetProperty(XMLTVConstants.Programs.ProgramStop)).ToString("yyyy/MM/dd hh:mm tt")); |
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} |
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|
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|
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|
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|
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private void UpdateInstance() |
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{ |
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bool found_field = false; |
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var instance_type = this.GetInstance().GetType(); |
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var fields = instance_type.GetFields(BindingFlags.Public | BindingFlags.NonPublic | BindingFlags.Instance); |
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foreach (var field in fields) |
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{ |
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if (field.FieldType == typeof(List<IXMLTVProgram>)) |
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{ |
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found_field = true; |
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try |
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{ |
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|
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var list = (List<IXMLTVProgram>)field.GetValue(this.GetInstance()); |
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this.SetProperty("Id", list.Count + 1); |
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list.Add(this); |
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xmltv_logger.Verbose.Debug.WriteLine("Updating instance with program information: {0}", this.ToString()); |
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field.SetValue(this.GetInstance(), list); |
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break; |
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} |
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catch (Exception ex) |
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{ |
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xmltv_logger.Verbose.Error.WriteLine("Unable to update instance with program information."); |
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xmltv_logger.Verbose.Error.WriteLine(ex.ToString()); |
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} |
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} |
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} |
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if (!found_field) |
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{ |
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xmltv_logger.Verbose.Error.WriteLine("Unable to update instance with program information."); |
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} |
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} |
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|
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private void Create(XElement node) |
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{ |
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//if (node.HasAttributes) |
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//{ |
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// var start = node.Attribute(XMLTVConstants.Programs.ProgramStart); |
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// this.Start = start == null ? new DateTime() : ParseDate(start.Value); |
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// if (!this.Start.Equals(new DateTime())) { xmltv_logger.Verbose.Debug.WriteLine("\tprogram_start: {0}", start); } |
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|
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// var stop = node.Attribute(XMLTVConstants.Programs.ProgramStop); |
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// this.Stop = stop == null ? new DateTime() : ParseDate(stop.Value); |
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// if (!this.Stop.Equals(new DateTime())) { xmltv_logger.Verbose.Debug.WriteLine("\tprogram_stop: {0}", stop); } |
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|
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// var channelid = node.Attribute(XMLTVConstants.Programs.ProgramChannelId); |
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// if (!string.IsNullOrEmpty(this.Description)) { xmltv_logger.Verbose.Debug.WriteLine("\tprogram_channelid: {0}", channelid); } |
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// IXMLTVChannel channel = new XMLTVChannel(); |
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// string _channelid = channelid == null ? string.Empty : channelid.Value; |
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// this.Channel = this.GetInstance().Channels.Find(m => m.Id == _channelid); |
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// if (this.Channel == null) { this.Channel = new XMLTVChannel(); } |
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// if (!string.IsNullOrEmpty(_channelid)) { xmltv_logger.Verbose.Debug.WriteLine("\tprogram_channel: {0}", this.Channel.ToString()); } //} |
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//try |
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//{ |
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// var title = node.Descendants(XMLTVConstants.Programs.ProgramTitle).FirstOrDefault(); |
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// this.Title = title == null ? string.Empty : title.Value; |
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//} |
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//catch (Exception) { this.Title = string.Empty; } |
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//if (!string.IsNullOrEmpty(this.Title)) { xmltv_logger.Verbose.Debug.WriteLine("\tprogram_title: {0}", this.Title == string.Empty ? "empty" : this.Title); } |
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//try |
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//{ |
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// var subtitle = node.Descendants(XMLTVConstants.Programs.ProgramSubTitle).FirstOrDefault(); |
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// this.SubTitle = subtitle == null ? string.Empty : subtitle.Value; |
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//} |
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//catch (Exception) { this.SubTitle = string.Empty; } |
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//if (!string.IsNullOrEmpty(this.SubTitle)) { xmltv_logger.Verbose.Debug.WriteLine("\tprogram_subtitle: {0}", this.SubTitle == string.Empty ? "empty" : this.SubTitle); } |
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//try |
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//{ |
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// var description = node.Descendants(XMLTVConstants.Programs.ProgramDescription).FirstOrDefault(); |
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// this.Description = description == null ? string.Empty : description.Value; ; |
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//} |
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//catch (Exception) { this.Description = string.Empty; } |
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//if (!string.IsNullOrEmpty(this.Description)) { xmltv_logger.Verbose.Debug.WriteLine("\tprogram_description: {0}", this.Description == string.Empty ? "empty" : this.Description); } |
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|
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//ParseExtraData(node); |
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|
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var nodes = node.Elements().ToList(); |
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foreach (var sub_node in nodes) |
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{ |
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if (this.GetInstance().IsAborting) |
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{ |
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break; |
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} |
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CreateHandlerForProgramMetaDataNode(sub_node); |
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} |
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} |
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private DateTime ParseDate(string timeStamp) |
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{ |
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DateTime dt = new DateTime(); |
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try |
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{ |
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dt = DateTime.ParseExact(timeStamp, "yyyyMMddHHmmss zzzz", System.Globalization.CultureInfo.CurrentCulture); |
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} |
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catch (Exception ex) { throw ex; } |
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return dt; |
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} |
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|
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private void CreateHandlerForProgramMetaDataNode(XElement node) |
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{ |
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Type t = this.GetType(); |
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Assembly asm = t.Assembly; |
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var types = asm.GetTypes(); |
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var classes = types.ToList().FindAll( |
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m => |
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m.DeclaringType == t && |
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m.IsClass && |
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!m.IsSealed |
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); |
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classes.TrimExcess(); |
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|
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object raw_instance = null; |
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BindingFlags flags = BindingFlags.Public | BindingFlags.NonPublic | BindingFlags.Instance; |
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CultureInfo culture = CultureInfo.CurrentCulture; |
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Type handler_type = null; |
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foreach (var type in classes) |
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{ |
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if (type.BaseType != null && type.BaseType == typeof(XMLTVBase<XMLTVProgram>)) |
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{ |
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var iface = type.GetInterface("IXMLTVHandler", true); |
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if (iface != null) |
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{ |
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var handler_prop = type.GetProperty("Handler"); |
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if (handler_prop != null) |
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{ |
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var ctors = type.GetConstructors(flags); |
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bool has_default_ctor = false; |
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foreach (var ctor in ctors) { if (ctor.GetParameters().Count() == 0) { has_default_ctor = true; } } |
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if (!has_default_ctor) { continue; } |
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raw_instance = Activator.CreateInstance(type, flags, null, new object[0], culture); |
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if (raw_instance != null) |
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{ |
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object handler_value = handler_prop.GetValue(raw_instance, null); |
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if (handler_value != null && handler_value.ToString() == node.Name.ToString()) |
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{ |
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handler_type = type; |
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break; |
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} |
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} |
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} |
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} |
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} |
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} |
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if (handler_type == null) |
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{ |
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StringBuilder node_builder = new StringBuilder(); |
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node_builder.AppendFormat("<{0} ", node.Name); |
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if (node.HasAttributes) { foreach (var attribute in node.Attributes()) { node_builder.AppendFormat("{0}=\"{1}\" ", attribute.Name, attribute.Value); } } |
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string node_text = string.Format("{0}>", node_builder.ToString().TrimEnd(new char[] { ' ' })); |
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xmltv_logger.Verbose.Warn.WriteLine("Ignoring unhandled extra meta-data: {0}", node_text); |
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} |
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raw_instance = Activator.CreateInstance(handler_type, flags, null, new object[] { this, node }, culture); |
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} |
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|
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|
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|
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#region sub-classes |
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private class title : XMLTVBase<XMLTVProgram> |
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{ |
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public title() : base(null, XMLTVConstants.Programs.ProgramTitle) { } |
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public title(XMLTVProgram instance, XElement node) |
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: base(instance, XMLTVConstants.Programs.ProgramTitle) |
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{ |
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} |
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} |
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#endregion |
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} |
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} |