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using System.Text; |
using System.Text; |
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using libxmltv.Interfaces; |
using libxmltv.Interfaces; |
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using System.ComponentModel; |
using System.ComponentModel; |
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using System.Windows.Forms; |
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using System.Threading; |
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using System.Reflection; |
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using System.Globalization; |
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using System.Diagnostics; |
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using System.Xml.Linq; |
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namespace libxmltv.Core |
namespace libxmltv.Core |
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{ |
{ |
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[Serializable] |
[Serializable] |
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internal class XMLTVRuntimeInstance : MarshalByRefObject, IXMLTVRuntimeInstance |
internal class XMLTVRuntimeInstance : MarshalByRefObject, |
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IXMLTVRuntimeInstance, |
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ISerializer<XMLTVRuntimeInstance>, |
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IGetCreatedInstanceEvent, |
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ISetCreatedInstanceEvent, |
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IDestroyInstance, |
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IRuntimeInstanceLoader<XMLTVRuntimeInstance> |
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{ |
{ |
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[NonSerialized] |
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Thread worker; |
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public XMLTVRuntimeInstance() { init(); } |
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public XMLTVRuntimeInstance(string xmlfile) : this(xmlfile, null) { } |
public XMLTVRuntimeInstance(string xmlfile) : this(xmlfile, null) { } |
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public XMLTVRuntimeInstance(string xmlfile, EventHandler<CancelEventArgs> t) { CreateInstance(xmlfile,t); } |
public XMLTVRuntimeInstance(string xmlfile, EventHandler<EventArgs> handler) |
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private void CreateInstance(string xmlfile, EventHandler<CancelEventArgs> t) |
: this() |
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{ |
{ |
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CancelEvent = t; |
this.OnInstanceCreated += handler; |
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using (XMLTVInstance instance = new XMLTVInstance(xmlfile, this)) |
worker = new Thread(new ParameterizedThreadStart(CreateInstance)); worker.Start(xmlfile); |
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} |
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private void CreateInstance(object xmlfile) |
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{ |
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using (XMLTVInstance instance = new XMLTVInstance(xmlfile.ToString())) |
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{ |
{ |
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this.LoadFromInstance(instance.GetInstance()); |
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OnCreatedInstance(this, new EventArgs()); |
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} |
} |
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} |
} |
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private void OnCreatedInstance(object sender, EventArgs e) |
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{ |
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if (OnInstanceCreated != null) { OnInstanceCreated.Invoke(sender, e); } |
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} |
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|
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//internal XMLTVInstance Instance { get; private set; } |
private void init() |
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{ |
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this.Source = new List<IXMLTVSource>(); |
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this.Channels = new List<IXMLTVChannel>(); |
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this.Programs = new List<IXMLTVProgram>(); |
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this.XmlFile_Name = string.Empty; |
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this.XmlFile_FullName = string.Empty; |
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this.XmlDoc = string.Empty; |
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this.OnInstanceCreated = null; |
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} |
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|
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#region IXMLTV_LOADER members |
#region IXMLTVRuntimeInstance members |
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public System.IO.FileInfo XmlFile { get; set; } |
private bool _IsAborting; |
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public string XmlDoc { get; set; } |
public bool IsAborting { get { return _IsAborting; } private set { _IsAborting = value; } } |
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private string _XmlFile_Name; |
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public string XmlFile_Name { get { return _XmlFile_Name; } set { _XmlFile_Name = value; } } |
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private string _XmlFile_FullName; |
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public string XmlFile_FullName { get { return _XmlFile_FullName; } set { _XmlFile_FullName = value; } } |
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private string _XmlDoc; |
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public string XmlDoc { get { return _XmlDoc; } set { _XmlDoc = value; } } |
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private List<IXMLTVSource> _Source; |
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public List<IXMLTVSource> Source { get { return _Source; } set { _Source = value; } } |
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private List<IXMLTVChannel> _Channels; |
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public List<IXMLTVChannel> Channels { get { return _Channels; } set { _Channels = value; } } |
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private List<IXMLTVProgram> _Programs; |
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public List<IXMLTVProgram> Programs { get { return _Programs; } set { _Programs = value; } } |
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#endregion |
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#region IOnInstanceCreated members |
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[NonSerialized] |
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private EventHandler<EventArgs> _OnInstanceCreated; |
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public EventHandler<EventArgs> OnInstanceCreated { get { return _OnInstanceCreated; } set { _OnInstanceCreated = value; } } |
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#endregion |
#endregion |
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#region IXMLTV_PARSER Members |
#region IGetCreatedInstanceEvent members |
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public IXMLTVSource Source { get; set; } |
public EventHandler<EventArgs> GetOnInstanceCreated() { return OnInstanceCreated; } |
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public Dictionary<string, IXMLTVChannel> Channels { get; set; } |
#endregion |
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public Dictionary<int, IXMLTVProgram> Programs { get; set; } |
#region ISetCreatedInstanceEvent members |
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#endregion |
public void SetOnInstanceCreated(EventHandler<EventArgs> event_instance) { OnInstanceCreated = event_instance; } |
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#endregion |
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internal IXMLTVSerializer<IXMLTVRuntimeInstance> Serializer |
#region ISerializer<XMLTVRuntimeInstance> members |
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public IXMLTVSerializer<XMLTVRuntimeInstance> Serializer { get { return new XMLTVSerializer<XMLTVRuntimeInstance>(this); } } |
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#endregion |
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#region IDestroyInstance member |
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public void DestroyInstance() |
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{ |
{ |
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get |
xmltv_logger.Debug.WriteLine("Destoying Instance of: '{0}'", this.GetType().Name); |
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this.IsAborting = true; |
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if (worker == null) |
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{ |
{ |
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return new XMLTVSerializer<IXMLTVRuntimeInstance>(this); |
xmltv_logger.Debug.WriteLine("Unable to destroy instance of: '{0}' - worker thread is null", this.GetType().Name); |
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return; |
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} |
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else |
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{ |
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if (worker.IsAlive) |
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{ |
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xmltv_logger.Verbose.Debug.WriteLine("Requesting Instance to Abort..."); |
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while (worker.IsAlive) { worker.Abort(); Application.DoEvents(); } |
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} |
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else { xmltv_logger.Debug.WriteLine("Instance of: '{0}'- already destroyed.", this.GetType().Name); } |
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} |
} |
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} |
} |
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//public void Dispose() |
#endregion |
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//{ |
#region IRuntimeInstanceLoader<XMLTVRuntimeInstance> member |
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// IsDisposing = true; |
public XMLTVRuntimeInstance LoadFromInstance(XMLTVRuntimeInstance instance) |
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// //throw new NotImplementedException(); |
{ |
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//} |
if (instance == null) |
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//public bool IsDisposing { get; private set; } |
{ |
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throw new NullReferenceException("Failed to load from instance because the instance is null."); |
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} |
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private event EventHandler<CancelEventArgs> CancelEvent = null; |
CloneFromInstance(ref instance); |
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xmltv_logger.Debug.WriteLine("Loading from instance..."); |
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public bool IsAborting |
if (this.Source != null) |
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{ |
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xmltv_logger.Info.WriteLine("Source Loaded: '{0}' Created by '{1}' - original source file: '{2}'", this.Source.FirstOrDefault().SourceName, this.Source.FirstOrDefault().GeneratorName, this.XmlFile_FullName); |
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} |
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else |
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{ |
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xmltv_logger.Error.WriteLine("Source Property is null."); |
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throw new NullReferenceException("Source Property is null."); |
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} |
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if (this.Channels != null) |
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{ |
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xmltv_logger.Info.WriteLine("Source Loaded: '{0}' Channels from source '{1}'", this.Channels.Count, this.Source.FirstOrDefault().SourceName); |
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} |
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else |
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{ |
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xmltv_logger.Error.WriteLine("Channels Property is null."); |
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throw new NullReferenceException("Channels Property is null."); |
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} |
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if (this.Programs != null) |
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{ |
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xmltv_logger.Info.WriteLine("Source Loaded: '{0}' Programs from source '{1}'", this.Programs.Count, this.Source.FirstOrDefault().SourceName); |
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} |
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else |
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{ |
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xmltv_logger.Error.WriteLine("Programs Property is null."); |
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throw new NullReferenceException("Programs Property is null."); |
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} |
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xmltv_logger.Debug.WriteLine("Loaded from instance..."); |
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return instance; |
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} |
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#endregion |
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#region CloneFromInstance |
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private void CloneFromInstance(ref XMLTVRuntimeInstance instance) |
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{ |
{ |
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get |
xmltv_logger.Debug.WriteLine("Cloning from instance..."); |
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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 t = typeof(XMLTVRuntimeInstance); |
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foreach (var field in t.GetFields(flags)) |
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{ |
{ |
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if (CancelEvent != null) |
try |
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{ |
{ |
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CancelEventArgs e = new CancelEventArgs(); |
if (field.IsNotSerialized) { continue; } |
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CancelEvent.Invoke(this, e); |
var f = instance.GetType().GetField(field.Name, flags); |
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if (e.Cancel) |
var v = f.GetValue(instance); |
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if (v != null) |
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{ |
{ |
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xmltv_logger.Log.Verbose.Debug.WriteLine("Detected Instance abort event..."); |
field.SetValue(this, v); |
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} |
} |
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return e.Cancel; |
else |
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{ |
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xmltv_logger.Debug.WriteLine("Attempted to set field: '{0}' with a null value. The operation was aborted.", f.Name); |
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continue; |
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} |
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} |
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catch (Exception ex) |
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{ |
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throw new Exception(string.Format("Unable to copy value for field: '{0}' from instance", field.Name), ex); |
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} |
} |
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return false; |
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} |
} |
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} |
foreach (var property in t.GetProperties(flags)) |
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{ |
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try |
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{ |
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var f = instance.GetType().GetProperty(property.Name); |
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object value = null; |
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try |
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{ |
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value = f.GetValue(instance, null); |
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} |
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catch (ArgumentException ex) { if (ex.Message == "Property get method not found.") { Debug.WriteLine(ex.ToString()); } else { throw ex; } } |
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try |
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{ |
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if (value != null) |
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{ |
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property.SetValue(this, value, null); |
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} |
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else |
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{ |
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xmltv_logger.Debug.WriteLine("Attempted to set property: '{0}' with a null value. The operation was aborted.", f.Name); |
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continue; |
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} |
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} |
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catch (ArgumentException ex) { if (ex.Message == "Property set method not found.") { Debug.WriteLine(ex.ToString()); } else { throw ex; } } |
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} |
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catch (Exception ex) |
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{ |
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throw new Exception(string.Format("Unable to copy value for property: '{0}' from instance", property.Name), ex); |
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} |
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} |
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xmltv_logger.Debug.WriteLine("Cloned from instance..."); |
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} |
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#endregion |
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} |
} |
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internal class XMLTVInstance : IDisposable |
internal class XMLTVInstance : IGetInstance<XMLTVRuntimeInstance>, IDisposable |
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{ |
{ |
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public XMLTVInstance(string xmlfile, XMLTVRuntimeInstance instance) |
public void Dispose() |
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{ |
{ |
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CreateLoader(xmlfile, instance); |
//throw new NotImplementedException(); |
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CreateParser(instance); |
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} |
} |
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private void CreateLoader(string xml_file, XMLTVRuntimeInstance instance) |
private XMLTVRuntimeInstance gInstance; |
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public XMLTVRuntimeInstance GetInstance() { return gInstance; } |
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public XMLTVInstance(string xmlfile) |
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{ |
{ |
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//XMLTVLoader loader = new XMLTVLoader(xml_file, instance); |
try |
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XMLTVLoader.CreateInstance(xml_file, instance); |
{ |
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CreateLoader(xmlfile); |
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CreateParser(); |
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} |
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catch (Exception ex) |
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{ |
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xmltv_logger.Error.WriteLine(ex.ToString()); |
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} |
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} |
} |
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private void CreateParser(XMLTVRuntimeInstance instance) |
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private void CreateLoader(string xml_file) |
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{ |
{ |
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//XMLTVParser parser = new XMLTVParser(instance); |
gInstance = new XMLTVRuntimeInstance(); |
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XMLTVParser.CreateInstance(instance); |
bool bound_to_ctor = false; |
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object raw_instance = null; |
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Assembly asm = Assembly.GetExecutingAssembly(); |
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var types = asm.GetTypes(); |
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foreach (var type in types) |
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{ |
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if (type.BaseType != null && type.BaseType == typeof(XMLTVBase<XMLTVRuntimeInstance>)) |
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{ |
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xmltv_logger.Verbose.Debug.WriteLine("Type: '{0}' Base: '{1}'", type.Name, type.BaseType == null ? "none" : type.BaseType.Name); |
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BindingFlags flags = BindingFlags.Public | BindingFlags.NonPublic | BindingFlags.Instance; |
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CultureInfo culture = CultureInfo.CurrentCulture; |
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object[] args = new object[] { xml_file, gInstance }; |
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try |
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{ |
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raw_instance = Activator.CreateInstance(type, flags, null, args, culture); |
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bound_to_ctor = true; |
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} |
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catch (Exception ex) |
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{ |
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Debug.WriteLine(ex.ToString()); |
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} |
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} |
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} |
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if (!bound_to_ctor) { throw new Exception("Unable to find a compatible XMLTV Data Loader."); } |
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if (raw_instance == null) { throw new NullReferenceException("Found a compatible XMLTV Data Loader, but it returned invalid data."); } |
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IGetInstance<XMLTVRuntimeInstance> getter_instance = (raw_instance as IGetInstance<XMLTVRuntimeInstance>); |
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if (getter_instance != null) { gInstance = getter_instance.GetInstance(); } |
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else { throw new Exception("Found a compatible XMLTV Data Loader, but was unable to obtain the instance holding the data"); } |
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} |
} |
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private void CreateParser() |
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{ |
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var doc = XDocument.Parse(this.GetInstance().XmlDoc); |
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var root_element = doc.Root.Name; |
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if (root_element == null) { throw new NullReferenceException("Root element is null"); } |
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CreateRootHandler(root_element.ToString()); |
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|
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public void Dispose() |
var nodes = doc.Root.Elements().ToList(); |
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} |
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private void CreateRootHandler(string root_element) |
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{ |
{ |
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//throw new NotImplementedException(); |
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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Assembly asm = Assembly.GetExecutingAssembly(); |
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var types = asm.GetTypes(); |
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Type handler_type = null; |
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foreach (var type in types) |
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{ |
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if (type.BaseType != null && type.BaseType == typeof(XMLTVBase<XMLTVRuntimeInstance>)) |
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{ |
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try |
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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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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() == root_element) |
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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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catch (Exception) { } |
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} |
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} |
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if (handler_type == null) { throw new Exception("Unable to find a compatible handler to parse document root."); } |
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raw_instance = Activator.CreateInstance(handler_type, flags, null, new object[] { gInstance }, culture); |
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} |
} |
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|
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|
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} |
} |
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} |
} |