/* Copyright (c) 2006 Google Inc.
*
* Licensed under the Apache License, Version 2.0 (the "License");
* you may not use this file except in compliance with the License.
* You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*/
using System;
using System.Xml;
using System.Collections;
using System.Text;
using Google.GData.Client;
namespace Google.GData.Extensions{
/// <summary>
/// GData schema extension describing an extended property/value pair
/// </summary>
public class ExtendedProperty : IExtensionElement
{
/// <summary>
/// the valueString (required).
/// </summary>
protected string value;
/// <summary>
/// the property name
/// </summary>
protected string name;
//////////////////////////////////////////////////////////////////////
/// <summary>accessor for the value</summary>
/// <returns>the value as string </returns>
//////////////////////////////////////////////////////////////////////
public string Value
{
get { return this.value; }
set { this.value = value; }
}
//////////////////////////////////////////////////////////////////////
/// <summary>accessor method for the name</summary>
/// <returns> </returns>
//////////////////////////////////////////////////////////////////////
public string Name
{
get { return this.name; }
set { this.name = value; }
}
#region When Parser
//////////////////////////////////////////////////////////////////////
/// <summary>Parses an xml node to create an ExtendedProperty object.</summary>
/// <param name="node">when node</param>
/// <returns>the created ExtendedProperty object</returns>
//////////////////////////////////////////////////////////////////////
public static ExtendedProperty Parse(XmlNode node)
{
Tracing.TraceCall();
ExtendedProperty prop = null;
Tracing.Assert(node != null, "node should not be null");
if (node == null)
{
throw new ArgumentNullException("node");
}
object localname = node.LocalName;
if (localname.Equals(GDataParserNameTable.XmlExtendedPropertyElement))
{
prop = new ExtendedProperty();
if (node.Attributes != null)
{
prop.Value = node.Attributes[GDataParserNameTable.XmlAttributeValue] != null ?
node.Attributes[GDataParserNameTable.XmlAttributeValue].Value : null;
prop.Name = node.Attributes[AtomParserNameTable.XmlNameElement]!= null ?
node.Attributes[AtomParserNameTable.XmlNameElement].Value : null;
}
}
return prop;
}
#endregion
#region overloaded for persistence
//////////////////////////////////////////////////////////////////////
/// <summary>Returns the constant representing this XML element.
/// </summary>
//////////////////////////////////////////////////////////////////////
public string XmlName
{
get { return GDataParserNameTable.XmlExtendedPropertyElement; }
}
/// <summary>
/// Persistence method for the When object
/// </summary>
/// <param name="writer">the xmlwriter to write into</param>
public void Save(XmlWriter writer)
{
if (Utilities.IsPersistable(this.Name))
{
writer.WriteStartElement(BaseNameTable.gDataPrefix, XmlName, BaseNameTable.gNamespace);
writer.WriteAttributeString(AtomParserNameTable.XmlNameElement, this.Name);
if (Utilities.IsPersistable(this.Value))
{
writer.WriteAttributeString(GDataParserNameTable.XmlAttributeValue, this.Value);
}
writer.WriteEndElement();
}
}
#endregion
}
}
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