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//Copyright 2010 Microsoft Corporation
//
//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.
namespace System.Data.Services.Common
{
using System.Collections.Generic;
using System.Diagnostics;
using System.Data.Services.Client;
using System.Xml;
internal sealed class EpmCustomContentSerializer : EpmContentSerializerBase, IDisposable
{
private bool disposed;
private Dictionary<EpmTargetPathSegment, EpmCustomContentWriterNodeData> visitorContent;
internal EpmCustomContentSerializer(EpmTargetTree targetTree, object element, XmlWriter target)
: base(targetTree, false, element, target)
{
this.InitializeVisitorContent();
}
public void Dispose()
{
if (!this.disposed)
{
foreach (EpmTargetPathSegment subSegmentOfRoot in this.Root.SubSegments)
{
EpmCustomContentWriterNodeData c = this.visitorContent[subSegmentOfRoot];
Debug.Assert(c != null, "Must have custom data for all the children of root");
if (this.Success)
{
c.AddContentToTarget(this.Target);
}
c.Dispose();
}
this.disposed = true;
}
}
protected override void Serialize(EpmTargetPathSegment targetSegment, EpmSerializationKind kind)
{
if (targetSegment.IsAttribute)
{
this.WriteAttribute(targetSegment);
}
else
{
this.WriteElement(targetSegment);
}
}
private void WriteAttribute(EpmTargetPathSegment targetSegment)
{
Debug.Assert(targetSegment.HasContent, "Must have content for attributes");
EpmCustomContentWriterNodeData currentContent = this.visitorContent[targetSegment];
currentContent.XmlContentWriter.WriteAttributeString(
targetSegment.SegmentNamespacePrefix,
targetSegment.SegmentName.Substring(1),
targetSegment.SegmentNamespaceUri,
currentContent.Data);
}
private void WriteElement(EpmTargetPathSegment targetSegment)
{
EpmCustomContentWriterNodeData currentContent = this.visitorContent[targetSegment];
currentContent.XmlContentWriter.WriteStartElement(
targetSegment.SegmentNamespacePrefix,
targetSegment.SegmentName,
targetSegment.SegmentNamespaceUri);
base.Serialize(targetSegment, EpmSerializationKind.Attributes);
if (targetSegment.HasContent)
{
Debug.Assert(currentContent.Data != null, "Must always have non-null data content value");
currentContent.XmlContentWriter.WriteString(currentContent.Data);
}
base.Serialize(targetSegment, EpmSerializationKind.Elements);
currentContent.XmlContentWriter.WriteEndElement();
}
private void InitializeVisitorContent()
{
this.visitorContent = new Dictionary<EpmTargetPathSegment, EpmCustomContentWriterNodeData>(ReferenceEqualityComparer<EpmTargetPathSegment>.Instance);
foreach (EpmTargetPathSegment subSegmentOfRoot in this.Root.SubSegments)
{
this.visitorContent.Add(subSegmentOfRoot, new EpmCustomContentWriterNodeData(subSegmentOfRoot, this.Element));
this.InitializeSubSegmentVisitorContent(subSegmentOfRoot);
}
}
private void InitializeSubSegmentVisitorContent(EpmTargetPathSegment subSegment)
{
foreach (EpmTargetPathSegment segment in subSegment.SubSegments)
{
this.visitorContent.Add(segment, new EpmCustomContentWriterNodeData(this.visitorContent[subSegment], segment, this.Element));
this.InitializeSubSegmentVisitorContent(segment);
}
}
}
}
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