//
// SyndicationItemFormatter.cs
//
// Author:
// Atsushi Enomoto <atsushi@ximian.com>
//
// Copyright (C) 2007 Novell, Inc (http://www.novell.com)
//
// Permission is hereby granted, free of charge, to any person obtaining
// a copy of this software and associated documentation files (the
// "Software"), to deal in the Software without restriction, including
// without limitation the rights to use, copy, modify, merge, publish,
// distribute, sublicense, and/or sell copies of the Software, and to
// permit persons to whom the Software is furnished to do so, subject to
// the following conditions:
//
// The above copyright notice and this permission notice shall be
// included in all copies or substantial portions of the Software.
//
// THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
// EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
// MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
// NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE
// LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION
// OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION
// WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
//
using System;
using System.Collections.Generic;
using System.Collections.ObjectModel;
using System.IO;
using System.Runtime.Serialization;
using System.Text;
using System.Xml;
namespace System.ServiceModel.Syndication{
[DataContract]
public abstract class SyndicationItemFormatter
{
#region static members
// My assumption is that those static methods are defined to
// be used in the derived classes and to dispatch the actual
// processing to each syndication element. Considering that
// they can be overriden in each element, I assume that these
// methods depend on the elements, not in reverse order.
protected internal static SyndicationCategory CreateCategory (SyndicationItem item)
{
if (item == null)
throw new ArgumentNullException ("item");
return item.CreateCategory ();
}
protected internal static SyndicationLink CreateLink (SyndicationItem item)
{
if (item == null)
throw new ArgumentNullException ("item");
return item.CreateLink ();
}
protected internal static SyndicationPerson CreatePerson (SyndicationItem item)
{
if (item == null)
throw new ArgumentNullException ("item");
return item.CreatePerson ();
}
[MonoTODO ("use maxExtensionsSize parameter")]
protected internal static void LoadElementExtensions (XmlReader reader, SyndicationCategory category, int maxExtensionSize)
{
category.ElementExtensions.Add (reader);
}
[MonoTODO ("use maxExtensionsSize parameter")]
protected internal static void LoadElementExtensions (XmlReader reader, SyndicationItem item, int maxExtensionSize)
{
item.ElementExtensions.Add (reader);
}
[MonoTODO ("use maxExtensionsSize parameter")]
protected internal static void LoadElementExtensions (XmlReader reader, SyndicationLink link, int maxExtensionSize)
{
link.ElementExtensions.Add (reader);
}
[MonoTODO ("use maxExtensionsSize parameter")]
protected internal static void LoadElementExtensions (XmlReader reader, SyndicationPerson person, int maxExtensionSize)
{
person.ElementExtensions.Add (reader);
}
protected internal static bool TryParseAttribute (string name, string ns, string value, SyndicationCategory category, string version)
{
if (category == null)
throw new ArgumentNullException ("category");
return category.TryParseAttribute (name, ns, value, version);
}
protected internal static bool TryParseAttribute (string name, string ns, string value, SyndicationItem item, string version)
{
if (item == null)
throw new ArgumentNullException ("item");
return item.TryParseAttribute (name, ns, value, version);
}
protected internal static bool TryParseAttribute (string name, string ns, string value, SyndicationLink link, string version)
{
if (link == null)
throw new ArgumentNullException ("link");
return link.TryParseAttribute (name, ns, value, version);
}
protected internal static bool TryParseAttribute (string name, string ns, string value, SyndicationPerson person, string version)
{
if (person == null)
throw new ArgumentNullException ("person");
return person.TryParseAttribute (name, ns, value, version);
}
protected internal static bool TryParseContent (XmlReader reader, SyndicationItem item, string contentType, string version, out SyndicationContent content)
{
if (item == null)
throw new ArgumentNullException ("item");
return item.TryParseContent (reader, contentType, version, out content);
}
protected internal static bool TryParseElement (XmlReader reader, SyndicationCategory category, string version)
{
if (category == null)
throw new ArgumentNullException ("category");
return category.TryParseElement (reader, version);
}
protected internal static bool TryParseElement (XmlReader reader, SyndicationItem item, string version)
{
if (item == null)
throw new ArgumentNullException ("item");
return item.TryParseElement (reader, version);
}
protected internal static bool TryParseElement (XmlReader reader, SyndicationLink link, string version)
{
if (link == null)
throw new ArgumentNullException ("link");
return link.TryParseElement (reader, version);
}
protected internal static bool TryParseElement (XmlReader reader, SyndicationPerson person, string version)
{
if (person == null)
throw new ArgumentNullException ("person");
return person.TryParseElement (reader, version);
}
protected internal static void WriteAttributeExtensions (XmlWriter writer, SyndicationCategory category, string version)
{
if (category == null)
throw new ArgumentNullException ("category");
category.WriteAttributeExtensions (writer, version);
}
protected internal static void WriteAttributeExtensions (XmlWriter writer, SyndicationItem item, string version)
{
if (item == null)
throw new ArgumentNullException ("item");
item.WriteAttributeExtensions (writer, version);
}
protected internal static void WriteAttributeExtensions (XmlWriter writer, SyndicationLink link, string version)
{
if (link == null)
throw new ArgumentNullException ("link");
link.WriteAttributeExtensions (writer, version);
}
protected internal static void WriteAttributeExtensions (XmlWriter writer, SyndicationPerson person, string version)
{
if (person == null)
throw new ArgumentNullException ("person");
person.WriteAttributeExtensions (writer, version);
}
protected internal void WriteElementExtensions (XmlWriter writer, SyndicationCategory category, string version)
{
if (category == null)
throw new ArgumentNullException ("category");
category.WriteElementExtensions (writer, version);
}
protected internal static void WriteElementExtensions (XmlWriter writer, SyndicationItem item, string version)
{
if (item == null)
throw new ArgumentNullException ("item");
item.WriteElementExtensions (writer, version);
}
protected internal void WriteElementExtensions (XmlWriter writer, SyndicationLink link, string version)
{
if (link == null)
throw new ArgumentNullException ("link");
link.WriteElementExtensions (writer, version);
}
protected internal void WriteElementExtensions (XmlWriter writer, SyndicationPerson person, string version)
{
if (person == null)
throw new ArgumentNullException ("person");
person.WriteElementExtensions (writer, version);
}
#endregion
#region instance members
SyndicationItem item;
protected SyndicationItemFormatter ()
{
}
protected SyndicationItemFormatter (SyndicationItem itemToWrite)
{
if (itemToWrite == null)
throw new ArgumentNullException ("itemToWrite");
SetItem (itemToWrite);
}
protected internal virtual void SetItem (SyndicationItem item)
{
if (item == null)
throw new ArgumentNullException ("item");
this.item = item;
}
public SyndicationItem Item {
get { return item; }
}
public abstract string Version { get; }
protected abstract SyndicationItem CreateItemInstance ();
public abstract bool CanRead (XmlReader reader);
public abstract void ReadFrom (XmlReader reader);
public abstract void WriteTo (XmlWriter writer);
public override string ToString ()
{
return String.Concat (GetType ().FullName, ", SyndicationVersion=", Version);
}
#endregion
}
}
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