/// <summary>Determines an extension method to get the <see cref="T:System.Data.OData.Atom.AtomWorkspaceMetadata" /> for an annotatable serviceDocument.</summary>
/// <returns>An <see cref="T:Microsoft.OData.Core.Atom.AtomWorkspaceMetadata" /> instance or null if no annotation of that type exists.</returns>
/// <param name="serviceDocument">The serviceDocument to get the annotation from.</param>
public static AtomWorkspaceMetadata Atom(this ODataServiceDocument serviceDocument)
{
ExceptionUtils.CheckArgumentNotNull(serviceDocument, "serviceDocument");
AtomWorkspaceMetadata workspaceMetadata = serviceDocument.GetAnnotation <AtomWorkspaceMetadata>();
if (workspaceMetadata == null)
{
workspaceMetadata = new AtomWorkspaceMetadata();
serviceDocument.SetAnnotation(workspaceMetadata);
}
return(workspaceMetadata);
}
/// <summary>
/// Reads a workspace of a service document.
/// </summary>
/// <returns>An <see cref="ODataServiceDocument"/> representing the workspace of a service document.</returns>
/// <remarks>
/// Pre-Condition: Any - the next node after the service element.
/// Post-Condition: Any - The next node after the workspace element.
/// </remarks>
private ODataServiceDocument ReadWorkspace()
{
Debug.Assert(this.XmlReader != null, "this.XmlReader != null");
bool enableAtomMetadataReading = this.AtomInputContext.MessageReaderSettings.EnableAtomMetadataReading;
// skip anything which is not in the ATOM publishing namespace.
this.SkipToElementInAtomPublishingNamespace();
this.AssertXmlCondition(XmlNodeType.Element, XmlNodeType.EndElement);
// if we already found an EndElement, it means that there is no serviceDocument.
if (this.XmlReader.NodeType == XmlNodeType.EndElement)
{
return(null);
}
this.AssertXmlCondition(XmlNodeType.Element);
Debug.Assert(this.XmlReader.NamespaceEquals(this.AtomPublishingNamespace), "The current element should have been in the Atom publishing namespace.");
if (!this.XmlReader.LocalNameEquals(this.AtomPublishingWorkspaceElementName))
{
throw new ODataException(Strings.ODataAtomServiceDocumentDeserializer_UnexpectedElementInServiceDocument(this.XmlReader.LocalName));
}
List <ODataEntitySetInfo> collections = new List <ODataEntitySetInfo>();
List <ODataFunctionImportInfo> functionImportInfos = new List <ODataFunctionImportInfo>();
List <ODataSingletonInfo> singletons = new List <ODataSingletonInfo>();
AtomWorkspaceMetadata workspaceMetadata = null;
if (enableAtomMetadataReading)
{
workspaceMetadata = new AtomWorkspaceMetadata();
}
if (!this.XmlReader.IsEmptyElement)
{
// read over the 'serviceDocument' element.
this.XmlReader.ReadStartElement();
do
{
this.XmlReader.SkipInsignificantNodes();
switch (this.XmlReader.NodeType)
{
case XmlNodeType.Element:
if (this.XmlReader.NamespaceEquals(this.AtomPublishingNamespace))
{
if (this.XmlReader.LocalNameEquals(this.AtomPublishingCollectionElementName))
{
ODataEntitySetInfo collection = this.ReadEntitySet();
Debug.Assert(collection != null, "collection != null");
collections.Add(collection);
}
else
{
// Throw error if we find anything other then a 'collection' element in the Atom publishing namespace.
throw new ODataException(Strings.ODataAtomServiceDocumentDeserializer_UnexpectedElementInWorkspace(this.XmlReader.LocalName));
}
}
else if (this.XmlReader.NamespaceEquals(this.ODataMetadataNamespace))
{
if (this.XmlReader.LocalNameEquals(this.ODataFunctionImportElementName))
{
ODataFunctionImportInfo functionImportInfo = this.ReadFunctionImportInfo();
Debug.Assert(functionImportInfo != null, "functionImportInfo != null");
functionImportInfos.Add(functionImportInfo);
}
else if (this.XmlReader.LocalNameEquals(this.ODataSingletonElementName))
{
ODataSingletonInfo singletonInfo = this.ReadSingletonInfo();
Debug.Assert(singletonInfo != null, "singletonInfo != null");
singletons.Add(singletonInfo);
}
else
{
// Throw error if we find anything other then a 'function-import' or 'singleton' element in the odata metadata namespace.
throw new ODataException(Strings.ODataAtomServiceDocumentDeserializer_UnexpectedODataElementInWorkspace(this.XmlReader.LocalName));
}
}
else if (enableAtomMetadataReading && this.XmlReader.NamespaceEquals(this.AtomNamespace))
{
if (this.XmlReader.LocalNameEquals(this.AtomTitleElementName))
{
this.ServiceDocumentMetadataDeserializer.ReadTitleElementInWorkspace(workspaceMetadata);
}
else
{
this.XmlReader.Skip();
}
}
else
{
// skip all other elements
this.XmlReader.Skip();
}
break;
case XmlNodeType.EndElement:
// end of 'serviceDocument' element.
break;
default:
// ignore all other nodes.
this.XmlReader.Skip();
break;
}
}while (this.XmlReader.NodeType != XmlNodeType.EndElement);
} // if (!this.XmlReader.IsEmptyElement)
// read over the end tag of the serviceDocument element or the start tag if the serviceDocument element is empty.
this.XmlReader.Read();
ODataServiceDocument serviceDocument = new ODataServiceDocument
{
EntitySets = new ReadOnlyEnumerable <ODataEntitySetInfo>(collections),
FunctionImports = new ReadOnlyCollection <ODataFunctionImportInfo>(functionImportInfos),
Singletons = new ReadOnlyCollection <ODataSingletonInfo>(singletons)
};
if (enableAtomMetadataReading)
{
serviceDocument.SetAnnotation <AtomWorkspaceMetadata>(workspaceMetadata);
}
return(serviceDocument);
}
private static ODataServiceDocument CreateWorkspace(bool createMetadataFirst, string workspaceName = null, IEnumerable <CollectionInfo> incomingCollections = null, IEnumerable <SingletonInfo> incomingSingletons = null)
{
ODataServiceDocument serviceDocument = ObjectModelUtils.CreateDefaultWorkspace();
if (createMetadataFirst)
{
serviceDocument.SetAnnotation(new AtomWorkspaceMetadata());
}
if (workspaceName != null)
{
AtomWorkspaceMetadata metadata = serviceDocument.Atom();
metadata.Title = new AtomTextConstruct {
Text = workspaceName
};
}
if (incomingCollections != null)
{
var collections = new List <ODataEntitySetInfo>();
foreach (var collectionInfo in incomingCollections)
{
var collection = new ODataEntitySetInfo()
{
Url = new Uri(collectionInfo.Url, UriKind.RelativeOrAbsolute), Name = collectionInfo.Name, Title = collectionInfo.TitleAnnotation
};
if (createMetadataFirst)
{
collection.SetAnnotation(new AtomResourceCollectionMetadata());
}
if (collectionInfo.TitleAnnotation != null)
{
AtomResourceCollectionMetadata metadata = collection.Atom();
metadata.Title = new AtomTextConstruct {
Text = collectionInfo.TitleAnnotation
};
}
collections.Add(collection);
}
serviceDocument.EntitySets = collections;
}
if (incomingSingletons != null)
{
var singletons = new List <ODataSingletonInfo>();
foreach (var singletonInfo in incomingSingletons)
{
var singleton = new ODataSingletonInfo()
{
Url = new Uri(singletonInfo.Url, UriKind.RelativeOrAbsolute), Name = singletonInfo.Name, Title = singletonInfo.TitleAnnotation
};
if (createMetadataFirst)
{
singleton.SetAnnotation(new AtomResourceCollectionMetadata());
}
singletons.Add(singleton);
}
serviceDocument.Singletons = singletons;
}
return(serviceDocument);
}
