/[xmltv_parser]/trunk/libxmltv/Core/DataSourceBindable.cs
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Contents of /trunk/libxmltv/Core/DataSourceBindable.cs

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Revision 141 - (show annotations) (download)
Thu Mar 14 13:08:20 2013 UTC (6 years, 8 months ago) by william
File size: 15895 byte(s)
+ fix datetime start/stop strings sometimes only showing the date and not the time

1 using System;
2 using System.Collections.Generic;
3 using System.Linq;
4 using System.Text;
5 using libxmltv.Interfaces;
6 using System.Collections;
7 using Enterprise.Logging;
8
9 namespace libxmltv.Core
10 {
11 public class ChannelList : List<IXMLTVChannel>, IDataSourceBindable//, IDataConverter<IChannelDefintionList>
12 {
13 private class ChannelDefintionList : List<IChannelDefintion>, IDataSourceSortable, IDataSourceFilterable, IChannelDefintionList
14 {
15 public ChannelDefintionList() { }
16 public ChannelDefintionList(List<IChannelDefintion> collection) { collection.ForEach(s => this.Add(s)); }
17 #region IDataSourceSortable members
18 public void Sort(ref object source, bool descending, params string[] args)
19 {
20 }
21 #endregion
22 #region IDataSourceFilterable members
23 public void Filter(ref object source, params string[] args)
24 {
25 }
26 #endregion
27 }
28 private class ChannelDefintion : IChannelDefintion
29 {
30 public ChannelDefintion()
31 {
32 ChannelId = string.Empty;
33 ChannelName = string.Empty;
34 }
35 public string ChannelId { get; internal set; }
36 public string ChannelName { get; internal set; }
37
38 public override string ToString()
39 {
40 StringBuilder builder = new StringBuilder();
41 Type t = typeof(ChannelDefintion);
42 var props = t.GetProperties();
43 foreach (var prop in props)
44 {
45 string name = prop.Name;
46 object value = prop.GetValue(this, null);
47 builder.AppendFormat("\t{0}: '{1}'", name, value == null ? "null" : value.ToString());
48 }
49 return builder.ToString();
50 }
51
52 }
53 //static private List<string> known_columns;
54 //static ChannelList()
55 //{
56 // known_columns = new List<string>();
57 // known_columns.Add("Id");
58 // known_columns.Add("Name");
59 //}
60 public ChannelList() { }
61
62 //public object ConvertObjectData(object source) { return this.ConvertData(source); }
63 //public IChannelDefintionList ConvertData(object source)
64 //{
65 // //object t = source;
66 // if (source.GetType() != typeof(ChannelDefintionList)) { throw new InvalidCastException(string.Format("Cannot cast: '{0}' to '{1}'", source.GetType().Name, typeof(ChannelDefintionList).Name)); }
67 // //if (type != typeof(IChannelDefintionList)) { throw new InvalidCastException(string.Format("Cannot cast: '{0}' to '{1}'", type.Name, typeof(IChannelDefintionList).Name)); }
68 // IChannelDefintionList t = (source as IChannelDefintionList);
69 // return t;
70 //}
71 /// <summary>
72 ///
73 /// </summary>
74 /// <param name="type"></param>
75 /// <returns></returns>
76 public object CreateBindableDataSource(out Type type)
77 {
78 type = typeof(IChannelDefintionList);
79 object bindable = new object();
80 ChannelDefintionList list = new ChannelDefintionList();
81
82 foreach (var t in this)
83 {
84 try
85 {
86 ChannelDefintion definition = new ChannelDefintion();
87 definition.ChannelId = t.Id;
88 definition.ChannelName = t.MetaData[XMLTVConstants.Channels.ChannelDisplayName].FirstOrDefault().Value.ToString();
89 xmltv_logger.Verbose.Debug.WriteLine(definition.ToString());
90 list.Add(definition);
91 }
92 catch (Exception ex) { throw ex; }
93 }
94 list = new ChannelDefintionList(list.OrderBy(s => s.ChannelName).ToList());
95 bindable = list;
96 return bindable;
97 }
98
99 }
100 public class ProgramList : List<IXMLTVProgram>, IDataSourceBindable//, IDataConverter<IProgramDefinitionList>
101 {
102 private class ProgramDefinitionList : List<IProgramDefinition>, IDataSourceSortable, IDataSourceFilterable, IProgramDefinitionList
103 {
104 public ProgramDefinitionList() { }
105 public ProgramDefinitionList(List<IProgramDefinition> collection) { collection.ForEach(s => this.Add(s)); }
106 #region IDataSourceSortable members
107 public void Sort(ref object source, bool descending, params string[] args)
108 {
109 IProgramDefinitionList list = null;
110 IOrderedEnumerable<IProgramDefinition> ordered = null;
111 try
112 {
113 list = (ProgramDefinitionList)source;
114 var col = args.First().ToString().ToLower();
115 switch (col)
116 {
117 case "channelnumber": ordered = descending ? list.OrderByDescending(s => s.ChannelNumber) : list.OrderBy(s => s.ChannelNumber); break;
118 case "channelname": ordered = descending ? list.OrderByDescending(s => s.ChannelName) : list.OrderBy(s => s.ChannelName); break;
119 case "start": ordered = descending ? list.OrderByDescending(s => s.Start) : list.OrderBy(s => s.Start); break;
120 case "stop": ordered = descending ? list.OrderByDescending(s => s.Stop) : list.OrderBy(s => s.Stop); break;
121 case "description": ordered = descending ? list.OrderByDescending(s => s.Description) : list.OrderBy(s => s.Description); break;
122 case "title": ordered = descending ? list.OrderByDescending(s => s.Title) : list.OrderBy(s => s.Title); break;
123 case "subtitle": ordered = descending ? list.OrderByDescending(s => s.SubTitle) : list.OrderBy(s => s.SubTitle); break;
124 }
125 //bool first = true;
126 foreach (var arg in args.Skip(1))
127 {
128 col = arg.ToLower();
129 switch (col)
130 {
131 case "channelnumber": ordered = descending ? ordered.ThenByDescending(s => s.ChannelNumber) : ordered.ThenBy(s => s.ChannelNumber); break;
132 case "channelname": ordered = descending ? list.OrderByDescending(s => s.ChannelName) : list.OrderBy(s => s.ChannelName); break;
133 case "start": ordered = descending ? ordered.ThenByDescending(s => s.Start) : ordered.ThenBy(s => s.Start); break;
134 case "stop": ordered = descending ? ordered.ThenByDescending(s => s.Stop) : ordered.ThenBy(s => s.Stop); break;
135 case "description": ordered = descending ? ordered.ThenByDescending(s => s.Description) : ordered.ThenBy(s => s.Description); break;
136 case "title": ordered = descending ? ordered.ThenByDescending(s => s.Title) : ordered.ThenBy(s => s.Title); break;
137 case "subtitle": ordered = descending ? ordered.ThenByDescending(s => s.SubTitle) : ordered.ThenBy(s => s.SubTitle); break;
138 }
139 }
140 list = new ProgramDefinitionList(ordered.ToList());
141 }
142 catch (Exception ex) { throw ex; }
143 if (list != null) { source = list; }
144 }
145 #endregion
146 #region IDataSourceFilterable members
147 public void Filter(ref object source, params string[] args)
148 {
149 IProgramDefinitionList list = null;
150 List<IProgramDefinition> ordered = null;
151 try
152 {
153 list = (ProgramDefinitionList)source;
154 //var col = args.First().ToString().ToLower();
155 //var data = args.().ToString().ToLower();
156
157 if (args.Count() != 2) { throw new ArgumentOutOfRangeException("args", "Excpected 2 aguments: columnname and filtertext"); }
158
159 string columnname = args[0].ToLower();
160 string filtertext = args[1].ToLower();
161
162 switch (columnname)
163 {
164 case "channelnumber": ordered = list.ToList().FindAll(s => s.ChannelNumber == Convert.ToInt32(filtertext)); break;
165 case "channelname": ordered = list.ToList().FindAll(s => s.ChannelName.ToLower().Contains(filtertext)); break;
166 case "start":
167 case "stop":
168 throw new ArgumentException("columnname", string.Format("Filtering for column: '{0}' has not been implemented", columnname));
169 case "description": ordered = list.ToList().FindAll(s => s.Description.ToLower().Contains(filtertext)); break;
170 case "title": ordered = list.ToList().FindAll(s => s.Title.ToLower().Contains(filtertext)); break;
171 case "subtitle": ordered = list.ToList().FindAll(s => s.SubTitle.ToLower().Contains(filtertext)); break;
172 }
173 list = new ProgramDefinitionList(ordered.ToList());
174 if (list.Count == 0)
175 {
176 list = (ProgramDefinitionList)source;
177 gLog.Warn.WriteLine("Filering by: column='{0}' with filer='{1}' returned no data",columnname, filtertext);
178 }
179 }
180 catch (Exception ex) { throw ex; }
181 if (list != null) { source = list; }
182 }
183 #endregion
184 }
185 private class ProgramDefintion : IProgramDefinition
186 {
187 public ProgramDefintion()
188 {
189 //ChannelId = string.Empty;
190 ChannelNumber = 0;
191 ChannelName = string.Empty;
192 Start = new DateTime().ToDateTimeString();
193 Stop = new DateTime().ToDateTimeString();
194 Description = string.Empty;
195 Title = string.Empty;
196 SubTitle = string.Empty;
197 }
198 //public string ChannelId { get; internal set; }
199 public int ChannelNumber { get; internal set; }
200 public string ChannelName { get; internal set; }
201 public string Start { get; internal set; }
202 public string Stop { get; internal set; }
203 public string Title { get; internal set; }
204 public string SubTitle { get; internal set; }
205 public string Description { get; internal set; }
206
207 public override string ToString()
208 {
209 StringBuilder builder = new StringBuilder();
210 Type t = typeof(ProgramDefintion);
211 var props = t.GetProperties();
212 foreach (var prop in props)
213 {
214 string name = prop.Name;
215 object value = prop.GetValue(this, null);
216 builder.AppendFormat("\t{0}: '{1}'", name, value == null ? "null" : value.ToString());
217 }
218 return builder.ToString();
219 }
220
221 }
222 public ProgramList() { }
223 //public object ConvertObjectData(object source) { return this.ConvertData(source); }
224 //public IProgramDefinitionList ConvertData(object source)
225 //{
226 // if (source.GetType() != typeof(ProgramDefinitionList)) { throw new InvalidCastException(string.Format("Cannot cast: '{0}' to '{1}'", source.GetType().Name, typeof(ProgramDefinitionList).Name)); }
227 // //if (type != typeof(IProgramDefinitionList)) { throw new InvalidCastException(string.Format("Cannot cast: '{0}' to '{1}'", type.Name, typeof(IProgramDefinitionList).Name)); }
228 // IProgramDefinitionList t = (source as IProgramDefinitionList);
229 // return t;
230 //}
231 /// <summary>
232 ///
233 /// </summary>
234 /// <param name="type"></param>
235 /// <returns></returns>
236 public object CreateBindableDataSource(out Type type)
237 {
238 type = typeof(IProgramDefinitionList);
239 object bindable = new object();
240 ProgramDefinitionList list = new ProgramDefinitionList();
241
242 foreach (var t in this)
243 {
244 try
245 {
246 ProgramDefintion definition = new ProgramDefintion();
247 string ChannelId = t.MetaData[XMLTVConstants.Programs.ProgramChannelId].ToString();
248 //definition.ChannelId = ChannelId;
249
250 var channels = XMLTV.GetChannels();
251 if (channels != null)
252 {
253 var channel = channels.Find(p => p.Id == ChannelId);
254 if (channel != null)
255 {
256 var channelname = channel.MetaData[XMLTVConstants.Channels.ChannelDisplayName].FirstOrDefault().Value.ToString();
257 var split = channelname.Split(new char[] { ' ' }, StringSplitOptions.RemoveEmptyEntries);
258 definition.ChannelNumber = Convert.ToInt32(split.First());
259 definition.ChannelName = string.IsNullOrEmpty(split.Last()) ? string.Empty : split.Last().ToString();
260
261 }
262 else
263 {
264 definition.ChannelNumber = 0;
265 }
266 }
267 else
268 {
269 definition.ChannelNumber = 0;
270 }
271 definition.Start = ((DateTime)t.MetaData[XMLTVConstants.Programs.ProgramStart]).ToDateTimeString();
272 definition.Stop = ((DateTime)t.MetaData[XMLTVConstants.Programs.ProgramStop]).ToDateTimeString();
273 definition.Description = t.MetaData[XMLTVConstants.Programs.ProgramDescription].ToString();
274 definition.Title = t.MetaData[XMLTVConstants.Programs.ProgramTitle].ToString();
275 definition.SubTitle = t.MetaData[XMLTVConstants.Programs.ProgramSubTitle].ToString();
276
277 xmltv_logger.Verbose.Debug.WriteLine(definition.ToString());
278 list.Add(definition);
279 }
280 catch (Exception ex) { throw ex; }
281 }
282
283 list = new ProgramDefinitionList(list.OrderBy(s => s.Start).ToList());
284
285 bindable = list;
286 return bindable;
287 }
288 }
289 public class ExtraList : List<IExtraMetaData>, IDataSourceBindable
290 {
291
292 public ExtraList() { }
293 /// <summary>
294 ///
295 /// </summary>
296 /// <param name="type"></param>
297 /// <returns></returns>
298 public object CreateBindableDataSource(out Type type)
299 {
300 type = typeof(object);
301 throw new NotImplementedException("Conversion of Extra MetaData to a bindable datasource has not been implemented.");
302 //object bindable = new object();
303 //return bindable;
304 }
305 //public object ConvertObjectData(object source) { return source; }
306 //public object Convert(object source)
307 //{
308 // throw new NotImplementedException("Conversion of Extra MetaData to a bindable datasource has not been implemented.");
309 //}
310 }
311 }

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