//
// SyndicationFeed.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{
public class SyndicationFeed : ISyndicationElement
{
public static SyndicationFeed Load (XmlReader reader)
{
return Load<SyndicationFeed> (reader);
}
public static TSyndicationFeed Load<TSyndicationFeed> (XmlReader reader) where TSyndicationFeed : SyndicationFeed, new()
{
return SyndicationVersions.LoadFeed<TSyndicationFeed> (reader);
}
SyndicationExtensions extensions = new SyndicationExtensions ();
Collection<SyndicationCategory> categories;
Collection<SyndicationPerson> authors, contributors;
Collection<SyndicationLink> links;
Uri base_uri;
TextSyndicationContent copyright, title;
string id;
DateTimeOffset last_updated_time;
IEnumerable<SyndicationItem> items;
TextSyndicationContent description;
string generator, language;
Uri image_url;
public SyndicationFeed ()
{
}
public SyndicationFeed (IEnumerable<SyndicationItem> items)
{
if (items != null)
Items = items;
}
public SyndicationFeed (string title, string description, Uri feedAlternateLink)
: this (title, description, feedAlternateLink, null)
{
}
public SyndicationFeed (string title, string description, Uri feedAlternateLink,
IEnumerable<SyndicationItem> items)
: this (title, description, feedAlternateLink, null, default (DateTimeOffset), items)
{
}
public SyndicationFeed (string title, string description, Uri feedAlternateLink, string id,
DateTimeOffset lastUpdatedTime)
: this (title, description, feedAlternateLink, id, lastUpdatedTime, null)
{
}
public SyndicationFeed (string title, string description, Uri feedAlternateLink, string id,
DateTimeOffset lastUpdatedTime, IEnumerable<SyndicationItem> items)
{
Title = title != null ? new TextSyndicationContent (title) : null;
Description = description != null ? new TextSyndicationContent (description) : null;
if (feedAlternateLink != null)
Links.Add (SyndicationLink.CreateAlternateLink (feedAlternateLink));
Id = id;
LastUpdatedTime = lastUpdatedTime;
if (items != null)
Items = items;
}
protected SyndicationFeed (SyndicationFeed source, bool cloneItems)
{
extensions = source.extensions.Clone ();
categories = source.categories == null ? null : new Collection<SyndicationCategory> (source.categories);
authors = source.authors == null ? null : new Collection<SyndicationPerson> (source.authors);
contributors = source.contributors == null ? null : new Collection<SyndicationPerson> (source.contributors);
links = source.links == null ? null : new Collection<SyndicationLink> (source.links);
base_uri = source.base_uri; // copy by reference !!
copyright = source.copyright == null ? null : source.copyright.Clone () as TextSyndicationContent;
title = source.title == null ? null : source.title.Clone () as TextSyndicationContent;
id = source.id;
last_updated_time = source.last_updated_time;
description = source.description == null ? null : source.description.Clone () as TextSyndicationContent;
generator = source.generator;
image_url = source.image_url; // copy by reference !!
language = source.language;
if (cloneItems && source.items != null)
items = new Collection<SyndicationItem> (new List<SyndicationItem> (source.items));
}
public Dictionary<XmlQualifiedName, string> AttributeExtensions {
get { return extensions.Attributes; }
}
public SyndicationElementExtensionCollection ElementExtensions {
get { return extensions.Elements; }
}
public Collection<SyndicationPerson> Authors {
get {
if (authors == null)
authors = new Collection<SyndicationPerson> ();
return authors;
}
}
public Collection<SyndicationCategory> Categories {
get {
if (categories == null)
categories = new Collection<SyndicationCategory> ();
return categories;
}
}
public Collection<SyndicationPerson> Contributors {
get {
if (contributors == null)
contributors = new Collection<SyndicationPerson> ();
return contributors;
}
}
public Collection<SyndicationLink> Links {
get {
if (links == null)
links = new Collection<SyndicationLink> ();
return links;
}
}
public Uri BaseUri {
get { return base_uri; }
set { base_uri = value; }
}
public TextSyndicationContent Copyright {
get { return copyright; }
set { copyright = value; }
}
public string Id {
get { return id; }
set { id = value; }
}
public DateTimeOffset LastUpdatedTime {
get { return last_updated_time; }
set { last_updated_time = value; }
}
public TextSyndicationContent Title {
get { return title; }
set { title = value; }
}
public IEnumerable<SyndicationItem> Items {
get {
if (items == null)
items = new Collection<SyndicationItem> ();
return items;
}
set {
if (value == null)
throw new ArgumentNullException ("value");
items = value;
}
}
public TextSyndicationContent Description {
get { return description; }
set { description = value; }
}
public string Generator {
get { return generator; }
set { generator = value; }
}
public Uri ImageUrl {
get { return image_url; }
set { image_url = value; }
}
public string Language {
get { return language; }
set { language = value; }
}
public virtual SyndicationFeed Clone (bool cloneItems)
{
return new SyndicationFeed (this, cloneItems);
}
protected internal virtual SyndicationCategory CreateCategory ()
{
return new SyndicationCategory ();
}
protected internal virtual SyndicationLink CreateLink ()
{
return new SyndicationLink ();
}
protected internal virtual SyndicationPerson CreatePerson ()
{
return new SyndicationPerson ();
}
protected internal virtual SyndicationItem CreateItem ()
{
return new SyndicationItem ();
}
public Atom10FeedFormatter GetAtom10Formatter ()
{
return new Atom10FeedFormatter (this);
}
public Rss20FeedFormatter GetRss20Formatter ()
{
return GetRss20Formatter (true);
}
public Rss20FeedFormatter GetRss20Formatter (bool serializeExtensionsAsAtom)
{
return new Rss20FeedFormatter (this, serializeExtensionsAsAtom);
}
public void SaveAsAtom10 (XmlWriter writer)
{
GetAtom10Formatter ().WriteTo (writer);
}
public void SaveAsRss20 (XmlWriter writer)
{
GetRss20Formatter ().WriteTo (writer);
}
protected internal virtual bool TryParseAttribute (string name, string ns, string value, string version)
{
return false;
}
protected internal virtual bool TryParseElement (XmlReader reader, string version)
{
return false;
}
protected internal virtual void WriteAttributeExtensions (XmlWriter writer, string version)
{
extensions.WriteAttributeExtensions (writer, version);
}
protected internal virtual void WriteElementExtensions (XmlWriter writer, string version)
{
extensions.WriteElementExtensions (writer, version);
}
}
}
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