/// <summary>
/// Updates the path to use the indexes from the target table.
/// </summary>
/// <param name="currentTable">The NamespaceTable which the RelativePathString currently references</param>
/// <param name="targetTable">The NamespaceTable which the RelativePathString should reference</param>
public void TranslateNamespaceIndexes(NamespaceTable currentTable, NamespaceTable targetTable)
{
// build mapping table.
int[] mappings = new int[currentTable.Count];
mappings[0] = 0;
// copy mappings.
string[] uris = new string[mappings.Length];
for (int ii = 1; ii < mappings.Length; ii++)
{
uris[ii] = currentTable.GetString((uint)ii);
if (uris[ii] != null)
{
mappings[ii] = targetTable.GetIndex(uris[ii]);
}
}
// update each element.
foreach (Element element in m_elements)
{
QualifiedName qname = element.ReferenceTypeName;
if (qname != null && qname.NamespaceIndex > 0)
{
if (qname.NamespaceIndex < mappings.Length && mappings[qname.NamespaceIndex] > 0)
{
element.ReferenceTypeName = new QualifiedName(qname.Name, (ushort)mappings[qname.NamespaceIndex]);
}
}
qname = element.TargetName;
if (qname != null && qname.NamespaceIndex > 0)
{
if (qname.NamespaceIndex < mappings.Length && mappings[qname.NamespaceIndex] > 0)
{
element.TargetName = new QualifiedName(qname.Name, (ushort)mappings[qname.NamespaceIndex]);
}
}
}
}
/// <summary>
/// Updates the nodeset string tables and returns a NodeId that references those tables.
/// </summary>
/// <param name="qname">The qualified name.</param>
/// <param name="targetNamespaceUris">The target namespace URIs.</param>
/// <param name="sourceNamespaceUris">The source namespace URIs.</param>
/// <returns>A NodeId that references those tables.</returns>
private static QualifiedName Translate(
QualifiedName qname,
NamespaceTable targetNamespaceUris,
NamespaceTable sourceNamespaceUris)
{
if (targetNamespaceUris == null)
{
throw new ArgumentNullException("targetNamespaceUris");
}
if (sourceNamespaceUris == null)
{
throw new ArgumentNullException("sourceNamespaceUris");
}
if (QualifiedName.IsNull(qname))
{
return(qname);
}
ushort namespaceIndex = 0;
if (qname.NamespaceIndex > 0)
{
string uri = sourceNamespaceUris.GetString(qname.NamespaceIndex);
if (uri == null)
{
return(qname);
}
int index = targetNamespaceUris.GetIndex(uri);
if (index == -1)
{
index = targetNamespaceUris.Append(uri);
}
namespaceIndex = (ushort)index;
}
return(new QualifiedName(qname.Name, namespaceIndex));
}
/// <summary>
/// Updates the nodeset string tables and returns a NodeId that references those tables.
/// </summary>
/// <param name="nodeId">The node identifier.</param>
/// <param name="targetNamespaceUris">The target namespace URIs.</param>
/// <param name="sourceNamespaceUris">The source namespace URIs.</param>
/// <returns>A NodeId that references those tables.</returns>
private static NodeId Translate(
NodeId nodeId,
NamespaceTable targetNamespaceUris,
NamespaceTable sourceNamespaceUris)
{
if (targetNamespaceUris == null)
{
throw new ArgumentNullException("targetNamespaceUris");
}
if (sourceNamespaceUris == null)
{
throw new ArgumentNullException("sourceNamespaceUris");
}
if (NodeId.IsNull(nodeId))
{
return(nodeId);
}
ushort namespaceIndex = 0;
if (nodeId.NamespaceIndex > 0)
{
string uri = sourceNamespaceUris.GetString(nodeId.NamespaceIndex);
if (String.IsNullOrEmpty(uri))
{
return(nodeId);
}
int index = targetNamespaceUris.GetIndex(uri);
if (index == -1)
{
index = targetNamespaceUris.Append(uri);
}
namespaceIndex = (ushort)index;
}
return(new NodeId(nodeId.Identifier, namespaceIndex));
}
/// <summary>
/// Parses a expanded node id string, translated any namespace indexes and returns the result.
/// </summary>
public static ExpandedNodeId Parse(string text, NamespaceTable currentNamespaces,
NamespaceTable targetNamespaces) {
// parse the string.
ExpandedNodeId nodeId = Parse(text);
// lookup the namespace uri.
string uri = nodeId.m_namespaceUri;
if (nodeId.m_nodeId.NamespaceIndex != 0) {
uri = currentNamespaces.GetString(nodeId.m_nodeId.NamespaceIndex);
}
// translate the namespace uri.
ushort namespaceIndex = 0;
if (!String.IsNullOrEmpty(uri)) {
int index = targetNamespaces.GetIndex(uri);
if (index == -1) {
throw ServiceResultException.Create(
StatusCodes.BadNodeIdInvalid,
"Cannot map namespace URI onto an index in the target namespace table: {0}",
uri);
}
namespaceIndex = (ushort) index;
}
// check for absolute node id.
if (nodeId.ServerIndex != 0) {
nodeId.m_nodeId = new NodeId(nodeId.m_nodeId.Identifier, 0);
nodeId.m_namespaceUri = uri;
return nodeId;
}
// local node id.
nodeId.m_nodeId = new NodeId(nodeId.m_nodeId.Identifier, namespaceIndex);
nodeId.m_namespaceUri = null;
return nodeId;
}
/// <summary>
/// Updates the namespace table with URI used in the relative path.
/// </summary>
/// <param name="currentTable">The current table.</param>
/// <param name="targetTable">The target table.</param>
public void UpdateNamespaceTable(NamespaceTable currentTable, NamespaceTable targetTable)
{
// build mapping table.
int[] mappings = new int[currentTable.Count];
mappings[0] = 0;
if (mappings.Length > 0)
{
mappings[1] = 1;
}
// ensure a placeholder for the local namespace.
if (targetTable.Count <= 1)
{
targetTable.Append("---");
}
string[] uris = new string[mappings.Length];
for (int ii = 2; ii < mappings.Length; ii++)
{
uris[ii] = currentTable.GetString((uint)ii);
if (uris[ii] != null)
{
mappings[ii] = targetTable.GetIndex(uris[ii]);
}
}
// update each element.
foreach (Element element in m_elements)
{
// check reference type name.
QualifiedName qname = element.ReferenceTypeName;
if (qname != null && qname.NamespaceIndex > 1)
{
if (qname.NamespaceIndex < mappings.Length)
{
if (mappings[qname.NamespaceIndex] == -1)
{
mappings[qname.NamespaceIndex] = targetTable.GetIndexOrAppend(uris[qname.NamespaceIndex]);
}
}
}
// check target name.
qname = element.TargetName;
if (qname != null && qname.NamespaceIndex > 1)
{
if (qname.NamespaceIndex < mappings.Length)
{
if (mappings[qname.NamespaceIndex] == -1)
{
mappings[qname.NamespaceIndex] = targetTable.GetIndexOrAppend(uris[qname.NamespaceIndex]);
}
}
}
}
}
/// <summary>
/// Returns a namespace table with all of the URIs defined.
/// </summary>
/// <remarks>
/// This table is was used to create any relative paths in the model design.
/// </remarks>
public static NamespaceTable GetNamespaceTable()
{
FieldInfo[] fields = typeof(Namespaces).GetFields(BindingFlags.Public | BindingFlags.Static);
NamespaceTable namespaceTable = new NamespaceTable();
foreach (FieldInfo field in fields)
{
string namespaceUri = (string)field.GetValue(typeof(Namespaces));
if (namespaceTable.GetIndex(namespaceUri) == -1)
{
namespaceTable.Append(namespaceUri);
}
}
return namespaceTable;
}
/// <summary>
/// Updates the path to use the indexes from the target table.
/// </summary>
/// <param name="currentTable">The NamespaceTable which the RelativePathString currently references</param>
/// <param name="targetTable">The NamespaceTable which the RelativePathString should reference</param>
public void TranslateNamespaceIndexes(NamespaceTable currentTable, NamespaceTable targetTable)
{
// build mapping table.
int[] mappings = new int[currentTable.Count];
mappings[0] = 0;
// copy mappings.
string[] uris = new string[mappings.Length];
for (int ii = 1; ii < mappings.Length; ii++)
{
uris[ii] = currentTable.GetString((uint)ii);
if (uris[ii] != null)
{
mappings[ii] = targetTable.GetIndex(uris[ii]);
}
}
// update each element.
foreach (Element element in m_elements)
{
QualifiedName qname = element.ReferenceTypeName;
if (qname != null && qname.NamespaceIndex > 0)
{
if (qname.NamespaceIndex < mappings.Length && mappings[qname.NamespaceIndex] > 0)
{
element.ReferenceTypeName = new QualifiedName(qname.Name, (ushort)mappings[qname.NamespaceIndex]);
}
}
qname = element.TargetName;
if (qname != null && qname.NamespaceIndex > 0)
{
if (qname.NamespaceIndex < mappings.Length && mappings[qname.NamespaceIndex] > 0)
{
element.TargetName = new QualifiedName(qname.Name, (ushort)mappings[qname.NamespaceIndex]);
}
}
}
}
/// <summary>
/// Updates the namespace table with URI used in the relative path.
/// </summary>
/// <param name="currentTable">The current table.</param>
/// <param name="targetTable">The target table.</param>
public void UpdateNamespaceTable(NamespaceTable currentTable, NamespaceTable targetTable)
{
// build mapping table.
int[] mappings = new int[currentTable.Count];
mappings[0] = 0;
if (mappings.Length > 0)
{
mappings[1] = 1;
}
// ensure a placeholder for the local namespace.
if (targetTable.Count <= 1)
{
targetTable.Append("---");
}
string[] uris = new string[mappings.Length];
for (int ii = 2; ii < mappings.Length; ii++)
{
uris[ii] = currentTable.GetString((uint)ii);
if (uris[ii] != null)
{
mappings[ii] = targetTable.GetIndex(uris[ii]);
}
}
// update each element.
foreach (Element element in m_elements)
{
// check reference type name.
QualifiedName qname = element.ReferenceTypeName;
if (qname != null && qname.NamespaceIndex > 1)
{
if (qname.NamespaceIndex < mappings.Length)
{
if (mappings[qname.NamespaceIndex] == -1)
{
mappings[qname.NamespaceIndex] = targetTable.GetIndexOrAppend(uris[qname.NamespaceIndex]);
}
}
}
// check target name.
qname = element.TargetName;
if (qname != null && qname.NamespaceIndex > 1)
{
if (qname.NamespaceIndex < mappings.Length)
{
if (mappings[qname.NamespaceIndex] == -1)
{
mappings[qname.NamespaceIndex] = targetTable.GetIndexOrAppend(uris[qname.NamespaceIndex]);
}
}
}
}
}
/// <summary>
/// Updates the nodeset string tables and returns a NodeId that references those tables.
/// </summary>
/// <param name="nodeId">The node identifier.</param>
/// <param name="targetNamespaceUris">The target namespace URIs.</param>
/// <param name="targetServerUris">The target server URIs.</param>
/// <param name="sourceNamespaceUris">The source namespace URIs.</param>
/// <param name="sourceServerUris">The source server URIs.</param>
/// <returns>A NodeId that references those tables.</returns>
private static ExpandedNodeId Translate(
ExpandedNodeId nodeId,
NamespaceTable targetNamespaceUris,
StringTable targetServerUris,
NamespaceTable sourceNamespaceUris,
StringTable sourceServerUris)
{
if (targetNamespaceUris == null)
{
throw new ArgumentNullException("targetNamespaceUris");
}
if (sourceNamespaceUris == null)
{
throw new ArgumentNullException("sourceNamespaceUris");
}
if (nodeId.ServerIndex > 0)
{
if (targetServerUris == null)
{
throw new ArgumentNullException("targetServerUris");
}
if (sourceServerUris == null)
{
throw new ArgumentNullException("sourceServerUris");
}
}
if (NodeId.IsNull(nodeId))
{
return(nodeId);
}
if (!nodeId.IsAbsolute)
{
return(Translate((NodeId)nodeId, targetNamespaceUris, sourceNamespaceUris));
}
string namespaceUri = nodeId.NamespaceUri;
if (nodeId.ServerIndex > 0)
{
if (String.IsNullOrEmpty(namespaceUri))
{
namespaceUri = sourceNamespaceUris.GetString(nodeId.NamespaceIndex);
}
string serverUri = sourceServerUris.GetString(nodeId.ServerIndex);
int index = targetServerUris.GetIndex(serverUri);
if (index == -1)
{
index = targetServerUris.Append(serverUri);
}
return(new ExpandedNodeId(new NodeId(nodeId.Identifier, 0), namespaceUri, (uint)index));
}
ushort namespaceIndex = 0;
if (!String.IsNullOrEmpty(namespaceUri))
{
int index = targetNamespaceUris.GetIndex(namespaceUri);
if (index == -1)
{
index = targetNamespaceUris.Append(namespaceUri);
}
namespaceIndex = (ushort)index;
}
return(new NodeId(nodeId.Identifier, namespaceIndex));
}
/// <summary>
/// Converts an expanded node id to a node id using a namespace table.
/// </summary>
public static QualifiedName Create(string name, string namespaceUri, NamespaceTable namespaceTable)
{
// check for null.
if (String.IsNullOrEmpty(name))
{
return QualifiedName.Null;
}
// return a name using the default namespace.
if (String.IsNullOrEmpty(namespaceUri))
{
return new QualifiedName(name);
}
// find the namespace index.
int namespaceIndex = -1;
if (namespaceTable != null)
{
namespaceIndex = namespaceTable.GetIndex(namespaceUri);
}
// oops - not found.
if (namespaceIndex < 0)
{
throw new ApplicationException(String.Format("NamespaceUri ({0}) is not in the NamespaceTable.", namespaceUri));
}
// return the name.
return new QualifiedName(name, (ushort)namespaceIndex);
}