/[xmltv_parser]/trunk/libxmltv/Core/XMLTVProgram.cs
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Diff of /trunk/libxmltv/Core/XMLTVProgram.cs

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--- trunk/libxmltv/Core/XMLTVProgram.cs	2013/03/09 12:46:38	85
+++ trunk/libxmltv/Core/XMLTVProgram.cs	2013/03/09 13:51:58	86
@@ -7,6 +7,7 @@
 using System.Reflection;
 using System.IO;
 using System.Diagnostics;
+using System.Globalization;
 
 namespace libxmltv.Core
 {
@@ -15,17 +16,13 @@
     {
         public XMLTVProgram() : base(null,XMLTVConstants.PROGRAM_ELEMENT)
         {
-            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.PROGRAM_ELEMENT)
         {
+            InternalDictionaryAddKnownProperties();
             try {
             xmltv_logger.Verbose.Debug.WriteLine("Creating Instance of XMLTVProgram");
             Create(node);
@@ -35,19 +32,63 @@
             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()
+        {
+            Properties = new Dictionary<string, object>();
+            Properties.Add("Id", 0);
+            Properties.Add(XMLTVConstants.Programs.ProgramStart, new DateTime());
+            Properties.Add(XMLTVConstants.Programs.ProgramStop, new DateTime());
+            Properties.Add(XMLTVConstants.Programs.ProgramChannelId, string.Empty);
+            Properties.Add(XMLTVConstants.Programs.ProgramTitle, string.Empty);
+            Properties.Add(XMLTVConstants.Programs.ProgramSubTitle, string.Empty);
+            Properties.Add(XMLTVConstants.Programs.ProgramDescription, string.Empty);
+        }
+
+        public Dictionary<string, object> Properties { get; private set; }
+
+        private void InternalDictionaryTestOrThrow()
+        {
+            if (Properties == null) { throw new NullReferenceException("Properties collection has not been initialized."); }
+            if (Properties.Count == 0) { throw new IndexOutOfRangeException("Properties collection has 0 elements."); }
+        }
+        private void InternalProperyExistsOrThrow(string name)
+        {
+            InternalDictionaryTestOrThrow();
+            if (!Properties.ContainsKey(name)) { throw new KeyNotFoundException(string.Format("Property '{0}' does not exist", name)); }
+        }
+        public object GetProperty(string name)
+        {
+            InternalProperyExistsOrThrow(name);
+            return Properties[name];            
+        }
+        public void SetProperty(string name, object value)
+        {
+            InternalProperyExistsOrThrow(name);
+            Properties[name] = value;
+        }
         #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}']",
+                GetProperty("Id").ToString(),
+                GetProperty(XMLTVConstants.Programs.ProgramTitle).ToString(),
+                GetProperty(XMLTVConstants.Programs.ProgramSubTitle), ToString(),
+                GetProperty(XMLTVConstants.Programs.ProgramChannelId).ToString(),
+                ((DateTime)GetProperty(XMLTVConstants.Programs.ProgramStart)).ToString("yyyy/MM/dd hh:mm tt"),
+                ((DateTime)GetProperty(XMLTVConstants.Programs.ProgramStop)).ToString("yyyy/MM/dd hh:mm tt"));
         }
 
+
+        
+
         private void UpdateInstance()
         {
             bool found_field = false;
@@ -62,7 +103,7 @@
                     {
                         
                         var list = (List<IXMLTVProgram>)field.GetValue(this.GetInstance());
-                        this.Id = list.Count + 1;
+                        this.SetProperty("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);
@@ -83,61 +124,135 @@
 
         private void Create(XElement node)
         {
-            if (node.HasAttributes)
+            //if (node.HasAttributes)
+            //{
+            //    var start = node.Attribute(XMLTVConstants.Programs.ProgramStart);
+            //    this.Start = start == null ? new DateTime() : ParseDate(start.Value);
+            //    if (!this.Start.Equals(new DateTime())) { xmltv_logger.Verbose.Debug.WriteLine("\tprogram_start: {0}", start); }
+
+            //    var stop = node.Attribute(XMLTVConstants.Programs.ProgramStop);
+            //    this.Stop = stop == null ? new DateTime() : ParseDate(stop.Value);
+            //    if (!this.Stop.Equals(new DateTime())) { xmltv_logger.Verbose.Debug.WriteLine("\tprogram_stop: {0}", stop); }
+
+            //    var channelid = node.Attribute(XMLTVConstants.Programs.ProgramChannelId);
+            //    if (!string.IsNullOrEmpty(this.Description)) { xmltv_logger.Verbose.Debug.WriteLine("\tprogram_channelid: {0}", channelid); }
+            //    IXMLTVChannel channel = new XMLTVChannel();
+            //    string _channelid = channelid == null ? string.Empty : channelid.Value;
+            //    this.Channel = this.GetInstance().Channels.Find(m => m.Id == _channelid);
+            //    if (this.Channel == null) { this.Channel = new XMLTVChannel(); }
+            //    if (!string.IsNullOrEmpty(_channelid)) { xmltv_logger.Verbose.Debug.WriteLine("\tprogram_channel: {0}", this.Channel.ToString()); }            //}
+            //try
+            //{
+            //    var title = node.Descendants(XMLTVConstants.Programs.ProgramTitle).FirstOrDefault();
+            //    this.Title = title == null ? string.Empty : title.Value;
+            //}
+            //catch (Exception) { this.Title = string.Empty; }
+            //if (!string.IsNullOrEmpty(this.Title)) { xmltv_logger.Verbose.Debug.WriteLine("\tprogram_title: {0}", this.Title == string.Empty ? "empty" : this.Title); }
+            //try
+            //{
+            //    var subtitle = node.Descendants(XMLTVConstants.Programs.ProgramSubTitle).FirstOrDefault();
+            //    this.SubTitle = subtitle == null ? string.Empty : subtitle.Value;
+            //}
+            //catch (Exception) { this.SubTitle = string.Empty; }
+            //if (!string.IsNullOrEmpty(this.SubTitle)) { xmltv_logger.Verbose.Debug.WriteLine("\tprogram_subtitle: {0}", this.SubTitle == string.Empty ? "empty" : this.SubTitle); }
+            //try
+            //{
+            //    var description = node.Descendants(XMLTVConstants.Programs.ProgramDescription).FirstOrDefault();
+            //    this.Description = description == null ? string.Empty : description.Value; ;
+            //}
+            //catch (Exception) { this.Description = string.Empty; }
+            //if (!string.IsNullOrEmpty(this.Description)) { xmltv_logger.Verbose.Debug.WriteLine("\tprogram_description: {0}", this.Description == string.Empty ? "empty" : this.Description); }
+
+            //ParseExtraData(node);
+
+            var nodes = node.Elements().ToList();
+            foreach (var sub_node in nodes)
             {
-                var start = node.Attribute(XMLTVConstants.Programs.ProgramStart);
-                this.Start = start == null ? new DateTime() : ParseDate(start.Value);
-                if (!this.Start.Equals(new DateTime())) { xmltv_logger.Verbose.Debug.WriteLine("\tprogram_start: {0}", start); }
-
-                var stop = node.Attribute(XMLTVConstants.Programs.ProgramStop);
-                this.Stop = stop == null ? new DateTime() : ParseDate(stop.Value);
-                if (!this.Stop.Equals(new DateTime())) { xmltv_logger.Verbose.Debug.WriteLine("\tprogram_stop: {0}", stop); }
-
-                var channelid = node.Attribute(XMLTVConstants.Programs.ProgramChannelId);
-                if (!string.IsNullOrEmpty(this.Description)) { xmltv_logger.Verbose.Debug.WriteLine("\tprogram_channelid: {0}", channelid); }
-                IXMLTVChannel channel = new XMLTVChannel();
-                string _channelid = channelid == null ? string.Empty : channelid.Value;
-                this.Channel = this.GetInstance().Channels.Find(m => m.Id == _channelid);
-                if (this.Channel == null) { this.Channel = new XMLTVChannel(); }
-                if (!string.IsNullOrEmpty(_channelid)) { xmltv_logger.Verbose.Debug.WriteLine("\tprogram_channel: {0}", this.Channel.ToString()); }
+                if (this.GetInstance().IsAborting)
+                {
+                    break;
+                }
+                CreateHandlerForProgramMetaDataNode(sub_node);
             }
+        }
+        private DateTime ParseDate(string timeStamp)
+        {
+            DateTime dt = new DateTime();
             try
             {
-                var title = node.Descendants(XMLTVConstants.Programs.ProgramTitle).FirstOrDefault();
-                this.Title = title == null ? string.Empty : title.Value;
+                dt = DateTime.ParseExact(timeStamp, "yyyyMMddHHmmss zzzz", System.Globalization.CultureInfo.CurrentCulture);
             }
-            catch (Exception) { this.Title = string.Empty; }
-            if (!string.IsNullOrEmpty(this.Title)) { xmltv_logger.Verbose.Debug.WriteLine("\tprogram_title: {0}", this.Title == string.Empty ? "empty" : this.Title); }
-            try
+            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)
             {
-                var subtitle = node.Descendants(XMLTVConstants.Programs.ProgramSubTitle).FirstOrDefault();
-                this.SubTitle = subtitle == null ? string.Empty : subtitle.Value;
+                if (type.BaseType != null && type.BaseType == typeof(XMLTVBase<XMLTVProgram>))
+                {
+                    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; } }
+                            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;
+                                    break;
+                                }
+                            }
+                        }
+                    }
+                }
             }
-            catch (Exception) { this.SubTitle = string.Empty; }
-            if (!string.IsNullOrEmpty(this.SubTitle)) { xmltv_logger.Verbose.Debug.WriteLine("\tprogram_subtitle: {0}", this.SubTitle == string.Empty ? "empty" : this.SubTitle); }
-            try
+            if (handler_type == null)
             {
-                var description = node.Descendants(XMLTVConstants.Programs.ProgramDescription).FirstOrDefault();
-                this.Description = description == null ? string.Empty : description.Value; ;
+                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);
             }
-            catch (Exception) { this.Description = string.Empty; }
-            if (!string.IsNullOrEmpty(this.Description)) { xmltv_logger.Verbose.Debug.WriteLine("\tprogram_description: {0}", this.Description == string.Empty ? "empty" : this.Description); }
-
-            //entries.Add(program.Id, program);
-            //program_index++;
-            //progress = 100.0 * (program_index / program_count);
-            //xmltv_logger.ReportProgress(this, new Enterprise.Logging.ReportProgressEventArgs((int)progress));
-            //Application.DoEvents();
+            raw_instance = Activator.CreateInstance(handler_type, flags, null, new object[] { this, node }, culture);
         }
-        private DateTime ParseDate(string timeStamp)
+
+
+
+        #region sub-classes
+        private class title : XMLTVBase<XMLTVProgram>
         {
-            DateTime dt = new DateTime();
-            try
+            public title() : base(null, XMLTVConstants.Programs.ProgramTitle) { }
+            public title(XMLTVProgram instance, XElement node)
+                : base(instance, XMLTVConstants.Programs.ProgramTitle)
             {
-                dt = DateTime.ParseExact(timeStamp, "yyyyMMddHHmmss zzzz", System.Globalization.CultureInfo.CurrentCulture);
             }
-            catch (Exception ex) { throw ex; }
-            return dt;
         }
+        #endregion
     }
 }

 

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