--- trunk/libxmltv/Core/XMLTVProgram.cs 2013/03/09 10:27:39 73 +++ trunk/libxmltv/Core/XMLTVProgram.cs 2013/03/14 12:43:38 140 @@ -3,34 +3,345 @@ using System.Linq; using System.Text; using libxmltv.Interfaces; +using System.Xml.Linq; +using System.Reflection; +using System.IO; +using System.Diagnostics; +using System.Globalization; namespace libxmltv.Core { [Serializable] - internal class XMLTVProgram : IXMLTVProgram + internal class XMLTVProgram : XMLTVBase, IXMLTVProgram { public XMLTVProgram() + : base(null, XMLTVConstants.Programs.RootElement) { - Id = 0; - Start = new DateTime(); - Stop = new DateTime(); - Channel = new XMLTVChannel(); - Title = string.Empty; - SubTitle = string.Empty; - Description = string.Empty; + InternalDictionaryAddKnownProperties(); + + } + public XMLTVProgram(XMLTVRuntimeInstance instance, XElement node) + : base(instance, XMLTVConstants.Programs.RootElement) + { + InternalDictionaryAddKnownProperties(); + try { + xmltv_logger.Verbose.Debug.WriteLine("Creating Instance of XMLTVProgram"); + Create(node); + xmltv_logger.Verbose.Debug.WriteLine("Created Instance of XMLTVProgram"); + UpdateInstance(); + } + catch (IOException ex) { Debug.WriteLine(ex.ToString()); } } #region IXMLTVProgram members - public int Id { get; set; } - public DateTime Start { get; set; } - public DateTime Stop { get; set; } - public IXMLTVChannel Channel { get; set; } - public string Title { get; set; } - public string SubTitle { get; set; } - public string Description { get; set; } + //public int Id { get; set; } + //public DateTime Start { get; set; } + //public DateTime Stop { get; set; } + //public IXMLTVChannel Channel { get; set; } + //public string Title { get; set; } + //public string SubTitle { get; set; } + //public string Description { get; set; } + + private void InternalDictionaryAddKnownProperties() + { + MetaData = new PropertyDictionary(); + MetaData.AddProperty("Id", 0); + MetaData.AddProperty(XMLTVConstants.Programs.ProgramStart, new DateTime()); + MetaData.AddProperty(XMLTVConstants.Programs.ProgramStop, new DateTime()); + MetaData.AddProperty(XMLTVConstants.Programs.ProgramChannelId, string.Empty); + MetaData.AddProperty(XMLTVConstants.Programs.ProgramTitle, string.Empty); + MetaData.AddProperty(XMLTVConstants.Programs.ProgramSubTitle, string.Empty); + MetaData.AddProperty(XMLTVConstants.Programs.ProgramDescription, string.Empty); + } + + #region Property Dictionary Support + private IPropertyDictionary _MetaData; + public IPropertyDictionary MetaData { get { return _MetaData; } private set { _MetaData = value; } } + public ExtraList GetExtraMetaData() + { + return (ExtraList)this.MetaData[XMLTVConstants.Programs.ProgramExtraMetaData]; + } + #endregion + #endregion public override string ToString() { - return string.Format("{0}: {1} - {2} ({3}) ['{4}' <==> '{5}']", Id, Title, SubTitle, Channel.ToString(), Start.ToString("yyyy/MM/dd hh:mm tt"), Stop.ToString("yyyy/MM/dd hh:mm tt")); + return string.Format("{0}: {1} - {2} ({3}) ['{4}' <==> '{5}']", + MetaData["Id"].ToString(), + MetaData[XMLTVConstants.Programs.ProgramTitle].ToString(), + MetaData[XMLTVConstants.Programs.ProgramSubTitle].ToString(), + MetaData[XMLTVConstants.Programs.ProgramChannelId].ToString(), + ((DateTime)MetaData[XMLTVConstants.Programs.ProgramStart]).ToString("yyyy/MM/dd hh:mm tt"), + ((DateTime)MetaData[XMLTVConstants.Programs.ProgramStop]).ToString("yyyy/MM/dd hh:mm tt")); + } + + + + + private void UpdateInstance() + { + bool found_field = false; + var instance_type = this.GetInstance().GetType(); + var fields = instance_type.GetFields(BindingFlags.Public | BindingFlags.NonPublic | BindingFlags.Instance); + foreach (var field in fields) + { + if (field.FieldType == typeof(ProgramList)) + { + found_field = true; + try + { + + var list = (ProgramList)field.GetValue(this.GetInstance()); + MetaData["Id"] = list.Count + 1; + list.Add(this); + xmltv_logger.Verbose.Debug.WriteLine("Updating instance with program information: {0}", this.ToString()); + field.SetValue(this.GetInstance(), list); + break; + } + catch (Exception ex) + { + xmltv_logger.Verbose.Error.WriteLine("Unable to update instance with program information."); + xmltv_logger.Verbose.Error.WriteLine(ex.ToString()); + } + } + } + if (!found_field) + { + xmltv_logger.Verbose.Error.WriteLine("Unable to update instance with program information."); + } + } + + private void Create(XElement node) + { + CreateHandlerForProgramMetaDataNode(node); + var nodes = node.Elements().ToList(); + foreach (var sub_node in nodes) + { + if (this.GetInstance().IsAborting) + { + break; + } + CreateHandlerForProgramMetaDataNode(sub_node); + } + } + private static DateTime ParseDate(string timeStamp) + { + DateTime dt = new DateTime(); + try + { + dt = DateTime.ParseExact(timeStamp, "yyyyMMddHHmmss zzzz", System.Globalization.CultureInfo.CurrentCulture); + } + catch (Exception ex) { throw ex; } + return dt; + } + + private void CreateHandlerForProgramMetaDataNode(XElement node) + { + + Type t = this.GetType(); + Assembly asm = t.Assembly; + var types = asm.GetTypes(); + var classes = types.ToList().FindAll( + m => + m.DeclaringType == t && + m.IsClass && + !m.IsSealed + ); + classes.TrimExcess(); + + object raw_instance = null; + BindingFlags flags = BindingFlags.Public | BindingFlags.NonPublic | BindingFlags.Instance; + CultureInfo culture = CultureInfo.CurrentCulture; + Type handler_type = null; + foreach (var type in classes) + { + if (type.BaseType != null && type.BaseType == typeof(XMLTVBase)) + { + var iface = type.GetInterface("IXMLTVHandler", true); + if (iface != null) + { + var handler_prop = type.GetProperty("Handler"); + if (handler_prop != null) + { + var ctors = type.GetConstructors(flags); + bool has_default_ctor = false; + foreach (var ctor in ctors) { if (ctor.GetParameters().Count() == 0) { has_default_ctor = true; } } + ctors = null; + if (!has_default_ctor) { continue; } + raw_instance = Activator.CreateInstance(type, flags, null, new object[0], culture); + if (raw_instance != null) + { + object handler_value = handler_prop.GetValue(raw_instance, null); + if (handler_value != null && handler_value.ToString() == node.Name.ToString()) + { + handler_type = type; + handler_value = null; + raw_instance = null; + handler_prop = null; + iface = null; + break; + } + handler_value = null; + } + raw_instance = null; + } + handler_prop = null; + } + iface = null; + } + } + t = null; + asm = null; + types = null; + classes = null; + if (handler_type == null) + { + try + { + raw_instance = Activator.CreateInstance(typeof(UnhandledExtraProgramMetaData), flags, null, new object[] { this, node }, culture); + } + catch (Exception ex) { throw ex; } + + if (raw_instance == null) + { + StringBuilder node_builder = new StringBuilder(); + node_builder.AppendFormat("<{0} ", node.Name); + if (node.HasAttributes) { foreach (var attribute in node.Attributes()) { node_builder.AppendFormat("{0}=\"{1}\" ", attribute.Name, attribute.Value); } } + string node_text = string.Format("{0}>", node_builder.ToString().TrimEnd(new char[] { ' ' })); + xmltv_logger.Verbose.Warn.WriteLine("Ignoring unhandled extra meta-data: {0}", node_text); + } + } + else + { + try + { + raw_instance = Activator.CreateInstance(handler_type, flags, null, new object[] { this, node }, culture); + } + catch (Exception ex) { throw ex; } + } + raw_instance = null; + flags = 0; + culture = null; + node = null; + } + + + + #region sub-classes + #region programme: stop/start/channelid + private class programme : XMLTVBase + { + public programme() : base(null, XMLTVConstants.Programs.RootElement) { } + public programme(XMLTVProgram instance, XElement node) + : base(instance, XMLTVConstants.Programs.RootElement) + { + if (node == null) { throw new NullReferenceException("The node instance was null"); } + if (node.HasAttributes) + { + var start = node.Attribute(XMLTVConstants.Programs.ProgramStart); + var t_start = start == null ? new DateTime() : ParseDate(start.Value); + if (!t_start.Equals(new DateTime())) + { + xmltv_logger.Verbose.Debug.WriteLine("\tprogram_start: {0}", start); + xmltv_logger.Verbose.Debug.WriteLine("\tprogram_start dt: {0}", t_start.ToString()); + } + instance.MetaData.AddProperty(XMLTVConstants.Programs.ProgramStart, t_start); + + var stop = node.Attribute(XMLTVConstants.Programs.ProgramStop); + var t_stop = stop == null ? new DateTime() : ParseDate(stop.Value); + if (!t_stop.Equals(new DateTime())) + { + xmltv_logger.Verbose.Debug.WriteLine("\tprogram_stop: {0}", stop); + xmltv_logger.Verbose.Debug.WriteLine("\tprogram_stop dt: {0}", t_stop.ToString()); + } + instance.MetaData.AddProperty(XMLTVConstants.Programs.ProgramStop, t_stop); + + var channelid = node.Attribute(XMLTVConstants.Programs.ProgramChannelId); + if (channelid != null) + { + if (!string.IsNullOrEmpty(channelid.Value)) { xmltv_logger.Verbose.Debug.WriteLine("\tprogram_channelid: {0}", channelid.Value); } + instance.MetaData.AddProperty(XMLTVConstants.Programs.ProgramChannelId, channelid.Value); + } + + } + node = null; + } + } + #endregion + #region title + private class title : XMLTVBase + { + public title() : base(null, XMLTVConstants.Programs.ProgramTitle) { } + public title(XMLTVProgram instance, XElement node) + : base(instance, XMLTVConstants.Programs.ProgramTitle) + { + if (node == null) { throw new NullReferenceException("The node instance was null"); } + if (node.Value != null) + { + instance.MetaData.AddProperty(XMLTVConstants.Programs.ProgramTitle, node.Value); + xmltv_logger.Verbose.Debug.WriteLine("\tprogram_title: {0}", node.Value); + } + node = null; + } + } + #endregion + #region sub-title + private class subtitle : XMLTVBase + { + public subtitle() : base(null, XMLTVConstants.Programs.ProgramSubTitle) { } + public subtitle(XMLTVProgram instance, XElement node) + : base(instance, XMLTVConstants.Programs.ProgramSubTitle) + { + if (node == null) { throw new NullReferenceException("The node instance was null"); } + if (node.Value != null) + { + instance.MetaData.AddProperty(XMLTVConstants.Programs.ProgramSubTitle, node.Value); + xmltv_logger.Verbose.Debug.WriteLine("\tprogram_subtitle: {0}", node.Value); + } + node = null; + } + } + #endregion + #region description + private class description : XMLTVBase + { + public description() : base(null, XMLTVConstants.Programs.ProgramDescription) { } + public description(XMLTVProgram instance, XElement node) + : base(instance, XMLTVConstants.Programs.ProgramDescription) + { + if (node == null) { throw new NullReferenceException("The node instance was null"); } + if (node.Value != null) + { + instance.MetaData.AddProperty(XMLTVConstants.Programs.ProgramDescription, node.Value); + xmltv_logger.Verbose.Debug.WriteLine("\tprogram_description: {0}", node.Value); + } + node = null; + } } + #endregion + + #region UnhandledExtraMetaData + private class UnhandledExtraProgramMetaData : XMLTVBase + { + public UnhandledExtraProgramMetaData() : base(null, null) { } + public UnhandledExtraProgramMetaData(XMLTVProgram instance, XElement node) + : base(instance, null) + { + if (node == null) { throw new NullReferenceException("The node instance was null"); } + xmltv_logger.Verbose.Debug.WriteLine("Parsng unhandled extra program meta-data: {0}", node.Name.ToString()); + if (this.GetInstance() != null) + { + List list = new List(); + if (!instance.MetaData.ContainsProperty(XMLTVConstants.Programs.ProgramExtraMetaData)) { instance.MetaData.AddProperty(XMLTVConstants.Programs.ProgramExtraMetaData, new List()); } + else { list = (List)instance.MetaData[XMLTVConstants.Programs.ProgramExtraMetaData]; } + ExtraMetaData data = new ExtraMetaData(node); + list.Add(data); + instance.MetaData[XMLTVConstants.Programs.ProgramExtraMetaData] = list; + data = null; + } + node = null; + } + } + #endregion + #endregion } }