1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
187
188
189
190
191
192
193
194
195
196
197
198
|
//------------------------------------------------------------
// Copyright (c) Microsoft Corporation. All rights reserved.
//------------------------------------------------------------
namespace System.ServiceModel.Syndication
{
using System;
using System.Collections.Generic;
using System.Collections.ObjectModel;
using System.Globalization;
using System.Text;
using System.Xml;
using System.Xml.Serialization;
using System.Diagnostics.CodeAnalysis;
using System.Xml.Schema;
using System.Runtime.CompilerServices;
[TypeForwardedFrom("System.ServiceModel.Web, Version=3.5.0.0, Culture=neutral, PublicKeyToken=31bf3856ad364e35")]
[XmlRoot(ElementName = Atom10Constants.EntryTag, Namespace = Atom10Constants.Atom10Namespace)]
public class Atom10ItemFormatter : SyndicationItemFormatter, IXmlSerializable
{
Atom10FeedFormatter feedSerializer;
Type itemType;
bool preserveAttributeExtensions;
bool preserveElementExtensions;
public Atom10ItemFormatter()
: this(typeof(SyndicationItem))
{
}
public Atom10ItemFormatter(Type itemTypeToCreate)
: base()
{
if (itemTypeToCreate == null)
{
throw DiagnosticUtility.ExceptionUtility.ThrowHelperArgumentNull("itemTypeToCreate");
}
if (!typeof(SyndicationItem).IsAssignableFrom(itemTypeToCreate))
{
throw DiagnosticUtility.ExceptionUtility.ThrowHelperArgument("itemTypeToCreate",
SR.GetString(SR.InvalidObjectTypePassed, "itemTypeToCreate", "SyndicationItem"));
}
this.feedSerializer = new Atom10FeedFormatter();
this.feedSerializer.PreserveAttributeExtensions = this.preserveAttributeExtensions = true;
this.feedSerializer.PreserveElementExtensions = this.preserveElementExtensions = true;
this.itemType = itemTypeToCreate;
}
public Atom10ItemFormatter(SyndicationItem itemToWrite)
: base(itemToWrite)
{
// No need to check that the parameter passed is valid - it is checked by the c'tor of the base class
this.feedSerializer = new Atom10FeedFormatter();
this.feedSerializer.PreserveAttributeExtensions = this.preserveAttributeExtensions = true;
this.feedSerializer.PreserveElementExtensions = this.preserveElementExtensions = true;
this.itemType = itemToWrite.GetType();
}
public bool PreserveAttributeExtensions
{
get { return this.preserveAttributeExtensions; }
set
{
this.preserveAttributeExtensions = value;
this.feedSerializer.PreserveAttributeExtensions = value;
}
}
public bool PreserveElementExtensions
{
get { return this.preserveElementExtensions; }
set
{
this.preserveElementExtensions = value;
this.feedSerializer.PreserveElementExtensions = value;
}
}
public override string Version
{
get { return SyndicationVersions.Atom10; }
}
protected Type ItemType
{
get
{
return this.itemType;
}
}
public override bool CanRead(XmlReader reader)
{
if (reader == null)
{
throw DiagnosticUtility.ExceptionUtility.ThrowHelperArgumentNull("reader");
}
return reader.IsStartElement(Atom10Constants.EntryTag, Atom10Constants.Atom10Namespace);
}
[SuppressMessage("Microsoft.Design", "CA1033:InterfaceMethodsShouldBeCallableByChildTypes", Justification = "The IXmlSerializable implementation is only for exposing under WCF DataContractSerializer. The funcionality is exposed to derived class through the ReadFrom\\WriteTo methods")]
XmlSchema IXmlSerializable.GetSchema()
{
return null;
}
[SuppressMessage("Microsoft.Design", "CA1033:InterfaceMethodsShouldBeCallableByChildTypes", Justification = "The IXmlSerializable implementation is only for exposing under WCF DataContractSerializer. The funcionality is exposed to derived class through the ReadFrom\\WriteTo methods")]
void IXmlSerializable.ReadXml(XmlReader reader)
{
if (reader == null)
{
throw DiagnosticUtility.ExceptionUtility.ThrowHelperArgumentNull("reader");
}
SyndicationFeedFormatter.TraceItemReadBegin();
ReadItem(reader);
SyndicationFeedFormatter.TraceItemReadEnd();
}
[SuppressMessage("Microsoft.Design", "CA1033:InterfaceMethodsShouldBeCallableByChildTypes", Justification = "The IXmlSerializable implementation is only for exposing under WCF DataContractSerializer. The funcionality is exposed to derived class through the ReadFrom\\WriteTo methods")]
void IXmlSerializable.WriteXml(XmlWriter writer)
{
if (writer == null)
{
throw DiagnosticUtility.ExceptionUtility.ThrowHelperArgumentNull("writer");
}
SyndicationFeedFormatter.TraceItemWriteBegin();
WriteItem(writer);
SyndicationFeedFormatter.TraceItemWriteEnd();
}
public override void ReadFrom(XmlReader reader)
{
SyndicationFeedFormatter.TraceItemReadBegin();
if (!CanRead(reader))
{
throw DiagnosticUtility.ExceptionUtility.ThrowHelperError(new XmlException(SR.GetString(SR.UnknownItemXml, reader.LocalName, reader.NamespaceURI)));
}
ReadItem(reader);
SyndicationFeedFormatter.TraceItemReadEnd();
}
public override void WriteTo(XmlWriter writer)
{
if (writer == null)
{
throw DiagnosticUtility.ExceptionUtility.ThrowHelperArgumentNull("writer");
}
SyndicationFeedFormatter.TraceItemWriteBegin();
writer.WriteStartElement(Atom10Constants.EntryTag, Atom10Constants.Atom10Namespace);
WriteItem(writer);
writer.WriteEndElement();
SyndicationFeedFormatter.TraceItemWriteEnd();
}
protected override SyndicationItem CreateItemInstance()
{
return SyndicationItemFormatter.CreateItemInstance(this.itemType);
}
void ReadItem(XmlReader reader)
{
SetItem(CreateItemInstance());
feedSerializer.ReadItemFrom(XmlDictionaryReader.CreateDictionaryReader(reader), this.Item);
}
void WriteItem(XmlWriter writer)
{
if (this.Item == null)
{
throw DiagnosticUtility.ExceptionUtility.ThrowHelperError(new InvalidOperationException(SR.GetString(SR.ItemFormatterDoesNotHaveItem)));
}
XmlDictionaryWriter w = XmlDictionaryWriter.CreateDictionaryWriter(writer);
feedSerializer.WriteItemContents(w, this.Item);
}
}
[TypeForwardedFrom("System.ServiceModel.Web, Version=3.5.0.0, Culture=neutral, PublicKeyToken=31bf3856ad364e35")]
[XmlRoot(ElementName = Atom10Constants.EntryTag, Namespace = Atom10Constants.Atom10Namespace)]
public class Atom10ItemFormatter<TSyndicationItem> : Atom10ItemFormatter
where TSyndicationItem : SyndicationItem, new ()
{
// constructors
public Atom10ItemFormatter()
: base(typeof(TSyndicationItem))
{
}
public Atom10ItemFormatter(TSyndicationItem itemToWrite)
: base(itemToWrite)
{
}
protected override SyndicationItem CreateItemInstance()
{
return new TSyndicationItem();
}
}
}
|
