protected virtual bool OnLoadTopicMetadata()
{
if (_filePath == null || !_filePath.Exists)
{
return(false);
}
XmlReaderSettings settings = new XmlReaderSettings();
settings.IgnoreComments = true;
settings.IgnoreWhitespace = true;
settings.IgnoreProcessingInstructions = true;
XmlReader reader = null;
try
{
reader = XmlReader.Create(_filePath, settings);
XmlNodeType nodeType = reader.MoveToContent();
Debug.Assert(nodeType == XmlNodeType.Element);
if (nodeType != XmlNodeType.Element)
{
return(false);
}
if (String.Equals(reader.Name, "topic",
StringComparison.OrdinalIgnoreCase))
{
_includesTopicId = true;
_topicId = reader.GetAttribute("id");
string strTemp = reader.GetAttribute("revisionNumber");
if (!String.IsNullOrEmpty(strTemp))
{
_revNumber = Convert.ToInt32(strTemp);
}
string nodeName = null;
while (reader.Read())
{
nodeType = reader.NodeType;
nodeName = reader.Name;
if (nodeType == XmlNodeType.Element)
{
if (ConceptualUtils.IsValidDocumentTag(nodeName))
{
this.OnDocumentType(nodeName);
break;
}
}
else if (nodeType == XmlNodeType.EndElement)
{
if (String.Equals(nodeName, "topic") ||
ConceptualUtils.IsValidDocumentTag(nodeName))
{
this.OnDocumentType(nodeName);
break;
}
}
}
}
else if (ConceptualUtils.IsValidDocumentTag(reader.Name))
{
_includesTopicId = false;
this.OnDocumentType(reader.Name);
}
}
finally
{
if (reader != null)
{
reader.Close();
}
}
// If the companion file is available, load it...
string companionFile = Path.ChangeExtension(_filePath, ".cmp");
if (!File.Exists(companionFile))
{
return(true);
}
try
{
reader = XmlReader.Create(companionFile, settings);
XmlNodeType nodeType = XmlNodeType.None;
string nodeName = null;
string nodeText = null;
while (reader.Read())
{
nodeType = reader.NodeType;
nodeName = reader.Name;
if (nodeType == XmlNodeType.Element)
{
switch (nodeName)
{
case "title":
nodeText = reader.ReadString().Trim();
if (!String.IsNullOrEmpty(nodeText))
{
_topicTitle = nodeText;
}
break;
case "tableOfContentsTitle":
nodeText = reader.ReadString().Trim();
if (!String.IsNullOrEmpty(nodeText))
{
_topicTocTitle = nodeText;
}
break;
case "linkText":
nodeText = reader.ReadString().Trim();
if (!String.IsNullOrEmpty(nodeText))
{
_topicLinkText = nodeText;
}
break;
case "keyword":
KeywordItem keyItem = new KeywordItem();
keyItem.ReadXml(reader);
if (!keyItem.IsEmpty)
{
_keywords.Add(keyItem);
}
break;
case "attribute":
AttributeItem attrItem = new AttributeItem();
attrItem.ReadXml(reader);
if (!attrItem.IsEmpty)
{
_attributes.Add(attrItem);
}
break;
case "authoring":
break;
}
}
else if (nodeType == XmlNodeType.EndElement)
{
if (String.Equals(nodeName, "metadata"))
{
this.OnDocumentType(nodeName);
break;
}
}
}
}
finally
{
if (reader != null)
{
reader.Close();
}
}
return(true);
}
