/// <summary>
/// Constructor which creates an empty root.
/// </summary>
/// <param name="epmTargetTree">Target xml tree</param>
internal EpmSourceTree(EpmTargetTree epmTargetTree)
{
DebugUtils.CheckNoExternalCallers();
this.root = new EpmSourcePathSegment();
this.epmTargetTree = epmTargetTree;
}
private void WriteEntryEpm(XmlWriter writer, EpmTargetTree epmTargetTree, EntryPropertiesValueCache epmValueCache, IEdmEntityTypeReference entityType)
{
EpmTargetPathSegment nonSyndicationRoot = epmTargetTree.NonSyndicationRoot;
if (nonSyndicationRoot.SubSegments.Count != 0)
{
foreach (EpmTargetPathSegment segment2 in nonSyndicationRoot.SubSegments)
{
string alreadyDeclaredPrefix = null;
this.WriteElementEpm(writer, segment2, epmValueCache, entityType, ref alreadyDeclaredPrefix);
}
}
}
/// <summary>
/// Writes the custom mapped EPM properties to an XML writer which is expected to be positioned such to write
/// a child element of the entry element.
/// </summary>
/// <param name="writer">The XmlWriter to write to.</param>
/// <param name="epmTargetTree">The EPM target tree to use.</param>
/// <param name="epmValueCache">The entry properties value cache to use to access the properties.</param>
/// <param name="entityType">The type of the entry.</param>
/// <param name="atomOutputContext">The output context currently in use.</param>
internal static void WriteEntryEpm(
XmlWriter writer,
EpmTargetTree epmTargetTree,
EntryPropertiesValueCache epmValueCache,
IEdmEntityTypeReference entityType,
ODataAtomOutputContext atomOutputContext)
{
DebugUtils.CheckNoExternalCallers();
EpmCustomWriter epmWriter = new EpmCustomWriter(atomOutputContext);
epmWriter.WriteEntryEpm(writer, epmTargetTree, epmValueCache, entityType);
}
/// <summary>
/// Constructor.
/// </summary>
/// <param name="mappings">The EPM mappings to create the cache for.</param>
/// <param name="model">The EDM model.</param>
/// <param name="totalMappingCount">The total number of entity property mappings
/// for the entity type that this cache is created for (on the type itself and all its base types).</param>
internal ODataEntityPropertyMappingCache(ODataEntityPropertyMappingCollection mappings, IEdmModel model, int totalMappingCount)
{
DebugUtils.CheckNoExternalCallers();
Debug.Assert(model.IsUserModel(), "model.IsUserModel()");
this.mappings = mappings;
this.model = model;
this.totalMappingCount = totalMappingCount;
// Note that we new up everything here eagerly because we will only create the EPM annotation for types
// for which we know for sure that they have EPM and thus we will need all of these anyway.
this.mappingsForInheritedProperties = new List <EntityPropertyMappingAttribute>();
this.mappingsForDeclaredProperties = mappings == null
? new List <EntityPropertyMappingAttribute>()
: new List <EntityPropertyMappingAttribute>(mappings);
this.epmTargetTree = new EpmTargetTree();
this.epmSourceTree = new EpmSourceTree(this.epmTargetTree);
}
internal void Add(EntityPropertyMappingInfo epmInfo)
{
DebugUtils.CheckNoExternalCallers();
Debug.Assert(epmInfo != null, "epmInfo != null");
string targetPath = epmInfo.Attribute.TargetPath;
string namespaceUri = epmInfo.Attribute.TargetNamespaceUri;
string namespacePrefix = epmInfo.Attribute.TargetNamespacePrefix;
EpmTargetPathSegment currentSegment = epmInfo.IsSyndicationMapping ? this.SyndicationRoot : this.NonSyndicationRoot;
IList <EpmTargetPathSegment> activeSubSegments = currentSegment.SubSegments;
Debug.Assert(!string.IsNullOrEmpty(targetPath), "Must have been validated during EntityPropertyMappingAttribute construction");
string[] targetSegments = targetPath.Split('/');
EpmTargetPathSegment foundSegment = null;
for (int i = 0; i < targetSegments.Length; i++)
{
string targetSegment = targetSegments[i];
if (targetSegment.Length == 0)
{
throw new ODataException(Strings.EpmTargetTree_InvalidTargetPath_EmptySegment(targetPath));
}
if (targetSegment[0] == '@' && i != targetSegments.Length - 1)
{
throw new ODataException(Strings.EpmTargetTree_AttributeInMiddle(targetSegment));
}
foundSegment = activeSubSegments.SingleOrDefault(
segment => segment.SegmentName == targetSegment &&
(epmInfo.IsSyndicationMapping || segment.SegmentNamespaceUri == namespaceUri));
if (foundSegment != null)
{
currentSegment = foundSegment;
}
else
{
currentSegment = new EpmTargetPathSegment(targetSegment, namespaceUri, namespacePrefix, currentSegment);
if (targetSegment[0] == '@')
{
activeSubSegments.Insert(0, currentSegment);
}
else
{
activeSubSegments.Add(currentSegment);
}
}
activeSubSegments = currentSegment.SubSegments;
}
if (currentSegment.EpmInfo != null)
{
// Two EpmAttributes with same TargetName in the inheritance hierarchy
throw new ODataException(Strings.EpmTargetTree_DuplicateEpmAttributesWithSameTargetName(currentSegment.EpmInfo.DefiningType.ODataFullName(), EpmTargetTree.GetPropertyNameFromEpmInfo(currentSegment.EpmInfo), currentSegment.EpmInfo.Attribute.SourcePath, epmInfo.Attribute.SourcePath));
}
// Increment the number of properties for which KeepInContent is false
if (!epmInfo.Attribute.KeepInContent)
{
this.countOfNonContentV2Mappings++;
}
currentSegment.EpmInfo = epmInfo;
// Mixed content is dis-allowed.
List <EntityPropertyMappingAttribute> conflictingAttributes = new List <EntityPropertyMappingAttribute>(2);
if (EpmTargetTree.HasMixedContent(this.NonSyndicationRoot, conflictingAttributes))
{
Debug.Assert(conflictingAttributes.Count == 2, "Expected to find exactly two conflicting attributes.");
throw new ODataException(Strings.EpmTargetTree_InvalidTargetPath_MixedContent(conflictingAttributes[0].TargetPath, conflictingAttributes[1].TargetPath));
}
}
internal static void WriteEntryEpm(XmlWriter writer, EpmTargetTree epmTargetTree, EntryPropertiesValueCache epmValueCache, IEdmEntityTypeReference entityType, ODataAtomOutputContext atomOutputContext)
{
new EpmCustomWriter(atomOutputContext).WriteEntryEpm(writer, epmTargetTree, epmValueCache, entityType);
}
internal EpmSourceTree(EpmTargetTree epmTargetTree)
{
this.epmTargetTree = epmTargetTree;
}
internal EpmSourceTree(EpmTargetTree epmTargetTree)
{
this.epmTargetTree = epmTargetTree;
}
/// <summary>
/// Writes the custom mapped EPM properties to an XML writer which is expected to be positioned such to write
/// a child element of the entry element.
/// </summary>
/// <param name="writer">The XmlWriter to write to.</param>
/// <param name="epmTargetTree">The EPM target tree to use.</param>
/// <param name="epmValueCache">The entry properties value cache to use to access the properties.</param>
/// <param name="entityType">The type of the entry.</param>
private void WriteEntryEpm(
XmlWriter writer,
EpmTargetTree epmTargetTree,
EntryPropertiesValueCache epmValueCache,
IEdmEntityTypeReference entityType)
{
Debug.Assert(writer != null, "writer != null");
Debug.Assert(epmTargetTree != null, "epmTargetTree != null");
Debug.Assert(epmValueCache != null, "epmValueCache != null");
Debug.Assert(entityType != null, "For any EPM to exist the metadata must be available.");
// If there are no custom mappings, just return null.
EpmTargetPathSegment customRootSegment = epmTargetTree.NonSyndicationRoot;
Debug.Assert(customRootSegment != null, "EPM Target tree must always have non-syndication root.");
if (customRootSegment.SubSegments.Count == 0)
{
return;
}
foreach (EpmTargetPathSegment targetSegment in customRootSegment.SubSegments)
{
Debug.Assert(!targetSegment.IsAttribute, "Target segments under the custom root must be for elements only.");
string alreadyDeclaredPrefix = null;
this.WriteElementEpm(writer, targetSegment, epmValueCache, entityType, ref alreadyDeclaredPrefix);
}
}
