/// <summary>
/// Override - Implementation will call <see cref="DvMediaContainer.UpdateMediaMetadata"/>
/// if the delegate is non-null. The delegate is executed before the base class
/// the XML is written. The implementation is also responsible for printing
/// the XML in such a way that each automapped resource is printed once for each
/// network interface.
/// </summary>
/// <param name="formatter">
/// A <see cref="ToXmlFormatter"/> object that
/// specifies method implementations for printing
/// media objects and metadata.
/// </param>
/// <param name="data">
/// This object should be a <see cref="ToXmlDataDv"/>
/// object that contains additional instructions used
/// by this implementation.
/// </param>
/// <param name="xmlWriter">
/// The <see cref="XmlTextWriter"/> object that
/// will format the representation in an XML
/// valid way.
/// </param>
/// <exception cref="InvalidCastException">
/// Thrown if the "data" argument is not a <see cref="ToXmlDataDv"/> object.
/// </exception>
/// <exception cref="InvalidCastException">
/// Thrown if the one of the UpdateStoragexxx delegates needs to get executed
/// whilst the provided value for the metadata is not a PropertyULong instance.
/// </exception>
public override void WriteInnerXml(ToXmlFormatter formatter, object data, XmlTextWriter xmlWriter)
{
if (this.Callback_UpdateMetadata != null)
{
this.Callback_UpdateMetadata(this);
}
InnerXmlWriter.WriteInnerXml
(
this,
new InnerXmlWriter.DelegateWriteProperties(InnerXmlWriter.WriteInnerXmlProperties),
new InnerXmlWriter.DelegateShouldPrintResources(this.PrintResources),
// Write resources can throw InvalidCastException
new InnerXmlWriter.DelegateWriteResources(InnerXmlWriterDv.WriteInnerXmlResources),
new InnerXmlWriter.DelegateWriteDescNodes(InnerXmlWriter.WriteInnerXmlDescNodes),
formatter,
(ToXmlData)data,
xmlWriter
);
}
/// <summary>
/// Override - Implementation will call <see cref="DvMediaItem.UpdateMediaMetadata"/>
/// if the delegate is non-null. The delegate is executed before the base class
/// the XML is written. The implementation is also responsible for printing
/// the XML in such a way that each automapped resource is printed once for each
/// network interface.
/// </summary>
/// <param name="formatter">
/// A <see cref="ToXmlFormatter"/> object that
/// specifies method implementations for printing
/// media objects and metadata.
/// </param>
/// <param name="data">
/// This object should be a <see cref="ToXmlDataDv"/>
/// object that contains additional instructions used
/// by this implementation.
/// </param>
/// <param name="xmlWriter">
/// The <see cref="XmlTextWriter"/> object that
/// will format the representation in an XML
/// valid way.
/// </param>
/// <exception cref="InvalidCastException">
/// Thrown if the "data" argument is not a <see cref="ToXmlDataDv"/> object.
/// </exception>
/// <exception cref="InvalidCastException">
/// Thrown if the one of the UpdateStoragexxx delegates needs to get executed
/// whilst the provided value for the metadata is not a PropertyULong instance.
/// </exception>
public override void WriteInnerXml(ToXmlFormatter formatter, object data, XmlTextWriter xmlWriter)
{
// To prevent constant updating of metadata for a media object,
// we don't have a callback for updating item metadata, unlike
// DvMediaContainer. DvMediaItem relies on the parent container
// to update the metadata of the item.
ToXmlDataDv txdv = (ToXmlDataDv)data;
InnerXmlWriter.WriteInnerXml
(
this,
new InnerXmlWriter.DelegateWriteProperties(InnerXmlWriter.WriteInnerXmlProperties),
new InnerXmlWriter.DelegateShouldPrintResources(this.PrintResources),
new InnerXmlWriter.DelegateWriteResources(InnerXmlWriterDv.WriteInnerXmlResources),
new InnerXmlWriter.DelegateWriteDescNodes(InnerXmlWriter.WriteInnerXmlDescNodes),
formatter,
txdv,
xmlWriter
);
}
/// <summary>
/// Always prints the full representation as required by the CDS specification.
/// No custom formatting options are honored, although desired properties
/// are supported in the data param.
/// </summary>
/// <param name="formatter">only options related to CDS-normative formatting are honored</param>
/// <param name="data">Must be <see cref="ToXmlData"/> instance.</param>
/// <param name="xmlWriter"></param>
public void ToXml(ToXmlFormatter formatter, object data, XmlTextWriter xmlWriter)
{
xmlWriter.WriteStartElement(T[_DIDL.Item]);
xmlWriter.WriteAttributeString(T[_ATTRIB.id], this.ID);
xmlWriter.WriteAttributeString(T[_ATTRIB.refID], this.m_Underlying.ID);
xmlWriter.WriteAttributeString(T[_ATTRIB.parentID], this.m_Parent.ID);
xmlWriter.WriteAttributeString(T[_ATTRIB.restricted], "1");
InnerXmlWriter.WriteInnerXml
(
this,
new InnerXmlWriter.DelegateWriteProperties(InnerXmlWriter.WriteInnerXmlProperties),
new InnerXmlWriter.DelegateShouldPrintResources(MediaObject.ShouldPrintResources),
new InnerXmlWriter.DelegateWriteResources(InnerXmlWriter.WriteInnerXmlResources),
new InnerXmlWriter.DelegateWriteDescNodes(InnerXmlWriter.WriteInnerXmlDescNodes),
formatter,
(ToXmlData)data,
xmlWriter
);
xmlWriter.WriteEndElement();
}
