/// <summary>
///
/// </summary>
/// <param name="lvi"></param>
/// <param name="dv"></param>
/// <param name="session"></param>
protected virtual void UpdateTypeInListView(ListViewItem lvi, DataValue dv, Session session)
{
if (dv.Value != null)
{
Array array = dv.Value as Array;
if (array != null)
{
ExtensionObject extension1 = array.GetValue(0) as ExtensionObject;
if (extension1 != null)
{
IEncodeable encodeable = extension1.Body as IEncodeable;
if (encodeable != null)
{
string name = encodeable.GetType().Name;
lvi.SubItems[(int)SubItemIndexes.Type].Text = String.Format("{0}[{1}]", name, array.Length);
}
}
else
{
lvi.SubItems[(int)SubItemIndexes.Type].Text = String.Format("{0}[{1}]", dv.Value.GetType().GetElementType().ToString(), array.Length);
}
}
else
{
ExpandedNodeId datatypeId = null;
ExtensionObject extension = dv.Value as ExtensionObject;
if (extension != null)
{
IEncodeable encodeable = extension.Body as IEncodeable;
if (encodeable != null)
{
datatypeId = encodeable.TypeId;
}
else
{
datatypeId = DataTypes.GetDataTypeId(dv.Value);
}
}
else
{
datatypeId = DataTypes.GetDataTypeId(dv.Value);
}
Node datatype = session.NodeCache.Find(datatypeId) as Node;
if (datatype != null)
{
lvi.SubItems[(int)SubItemIndexes.Type].Text = datatype.ToString();
}
}
}
}
/// <summary>
/// Encodes a message in a stream.
/// </summary>
private static void EncodeBinaryMessage(IEncodeable message, Stream stream,
ServiceMessageContext context)
{
if (message == null)
{
throw new ArgumentNullException(nameof(message));
}
if (stream == null)
{
throw new ArgumentNullException(nameof(stream));
}
if (context == null)
{
throw new ArgumentNullException(nameof(context));
}
MemoryStream buffer = null;
try {
//
// Binary encoder unfortunately seeks (to keep track of
// position). Therefore we need to wrap a non seeking stream.
//
var output = stream.CanSeek ? stream : buffer = new MemoryStream();
using (var encoder = new BinaryEncoder(output, context)) {
// convert the namespace uri to an index.
var typeId = ExpandedNodeId.ToNodeId(message.BinaryEncodingId,
context.NamespaceUris);
// write the type id.
encoder.WriteNodeId(null, typeId);
// write the message.
encoder.WriteEncodeable(null, message, message.GetType());
}
}
finally {
if (buffer != null)
{
stream.Write(buffer.ToArray());
buffer.Dispose();
}
}
}
/// <summary>
/// Formats a value for display in the control.
/// </summary>
private string GetValueText(object value)
{
// check for null.
if (value == null)
{
return("(null)");
}
// format bytes.
byte[] bytes = value as byte[];
if (bytes != null)
{
StringBuilder buffer = new StringBuilder();
for (int ii = 0; ii < bytes.Length; ii++)
{
if (ii != 0 && ii % 16 == 0)
{
buffer.Append(" ");
}
buffer.AppendFormat("{0:X2} ", bytes[ii]);
}
return(buffer.ToString());
}
// format xml element.
XmlElement xml = value as XmlElement;
if (xml != null)
{
// return the entire element if not expandable.
if (!IsExpandableType(xml))
{
return(xml.OuterXml);
}
// show only the start tag.
string text = xml.OuterXml;
int index = text.IndexOf('>');
if (index != -1)
{
text = text.Substring(0, index);
}
return(text);
}
// format array.
Array array = value as Array;
if (array != null)
{
return(Utils.Format("{1}[{0}]", array.Length, value.GetType().GetElementType().Name));
}
// format list.
IList list = value as IList;
if (list != null)
{
string type = value.GetType().Name;
if (type.EndsWith("Collection"))
{
type = type.Substring(0, type.Length - "Collection".Length);
}
else
{
type = "Object";
}
return(Utils.Format("{1}[{0}]", list.Count, type));
}
// format encodeable object.
IEncodeable encodeable = value as IEncodeable;
if (encodeable != null)
{
return(encodeable.GetType().Name);
}
// format extension object.
ExtensionObject extension = value as ExtensionObject;
if (extension != null)
{
return(GetValueText(extension.Body));
}
// check for event value.
EventFieldList eventFields = value as EventFieldList;
if (eventFields != null)
{
if (m_monitoredItem != null)
{
return(String.Format("{0}", m_monitoredItem.GetEventType(eventFields)));
}
return(eventFields.GetType().Name);
}
// check for data value.
DataValue dataValue = value as DataValue;
if (dataValue != null)
{
if (StatusCode.IsBad(dataValue.StatusCode))
{
return(String.Format("{0}", dataValue.StatusCode));
}
return(String.Format("{0}", dataValue.Value));
}
// use default formatting.
return(Utils.Format("{0}", value));
}
/// <summary>
/// Shows a value in control.
/// </summary>
private async Task ShowValue(int index, bool overwrite, object value)
{
if (value == null)
{
return;
}
// show monitored items.
MonitoredItem monitoredItem = value as MonitoredItem;
if (monitoredItem != null)
{
m_monitoredItem = monitoredItem;
ShowValue(ref index, ref overwrite, monitoredItem.LastValue.ToString());
return;
}
// show data changes
MonitoredItemNotification datachange = value as MonitoredItemNotification;
if (datachange != null)
{
ShowValue(ref index, ref overwrite, datachange.Value.ToString());
return;
}
// show events
EventFieldList eventFields = value as EventFieldList;
if (eventFields != null)
{
for (int ii = 0; ii < eventFields.EventFields.Count; ii++)
{
ShowValue(ref index, ref overwrite, eventFields, ii);
}
return;
}
// show extension bodies.
ExtensionObject extension = value as ExtensionObject;
if (extension != null)
{
ShowValue(ref index, ref overwrite, extension.Body.ToString());
return;
}
// show encodeables.
IEncodeable encodeable = value as IEncodeable;
if (encodeable != null)
{
PropertyInfo[] properties = encodeable.GetType().GetProperties();
foreach (PropertyInfo property in properties)
{
ShowValue(ref index, ref overwrite, encodeable, property);
}
return;
}
// show bytes.
byte[] bytes = value as byte[];
if (bytes != null)
{
bool result = await PromptOnLongList(bytes.Length / 16);
if (!result)
{
return;
}
for (int ii = 0; ii < bytes.Length; ii += 16)
{
ShowValue(ref index, ref overwrite, bytes, ii);
}
return;
}
// show arrays
Array array = value as Array;
if (array != null)
{
bool result = await PromptOnLongList(array.Length);
if (!result)
{
return;
}
for (int ii = 0; ii < array.Length; ii++)
{
ShowValue(ref index, ref overwrite, array, ii);
}
return;
}
// show lists
IList list = value as IList;
if (list != null)
{
bool result = await PromptOnLongList(list.Count);
if (!result)
{
return;
}
for (int ii = 0; ii < list.Count; ii++)
{
ShowValue(ref index, ref overwrite, list, ii);
}
return;
}
// show xml elements
XmlElement xml = value as XmlElement;
if (xml != null)
{
bool result = await PromptOnLongList(xml.ChildNodes.Count);
if (!result)
{
return;
}
for (int ii = 0; ii < xml.ChildNodes.Count; ii++)
{
ShowValue(ref index, ref overwrite, xml, ii);
}
return;
}
// show data value.
DataValue datavalue = value as DataValue;
if (datavalue != null)
{
ShowValue(ref index, ref overwrite, datavalue, 0);
ShowValue(ref index, ref overwrite, datavalue, 1);
ShowValue(ref index, ref overwrite, datavalue, 2);
ShowValue(ref index, ref overwrite, datavalue, 3);
return;
}
// show node id value.
NodeId nodeId = value as NodeId;
if (nodeId != null)
{
ShowValue(ref index, ref overwrite, nodeId, 0);
ShowValue(ref index, ref overwrite, nodeId, 1);
ShowValue(ref index, ref overwrite, nodeId, 2);
return;
}
// show expanded node id value.
ExpandedNodeId expandedNodeId = value as ExpandedNodeId;
if (expandedNodeId != null)
{
ShowValue(ref index, ref overwrite, expandedNodeId, 0);
ShowValue(ref index, ref overwrite, expandedNodeId, 1);
ShowValue(ref index, ref overwrite, expandedNodeId, 2);
ShowValue(ref index, ref overwrite, expandedNodeId, 3);
return;
}
// show qualified name value.
QualifiedName qualifiedName = value as QualifiedName;
if (qualifiedName != null)
{
ShowValue(ref index, ref overwrite, qualifiedName, 0);
ShowValue(ref index, ref overwrite, qualifiedName, 1);
return;
}
// show qualified name value.
LocalizedText localizedText = value as LocalizedText;
if (localizedText != null)
{
ShowValue(ref index, ref overwrite, localizedText, 0);
ShowValue(ref index, ref overwrite, localizedText, 1);
return;
}
// show variant.
Variant?variant = value as Variant?;
if (variant != null)
{
ShowValue(ref index, ref overwrite, variant.Value.Value.ToString());
return;
}
// show unknown types as strings.
ShowValue(ref index, ref overwrite, String.Format("{0}", value));
}
/// <summary>
///
/// </summary>
/// <param name="lvi"></param>
/// <param name="dv"></param>
/// <param name="session"></param>
protected virtual void UpdateValueInListView(ListViewItem lvi, DataValue dv, Session session)
{
if (dv.Value != null)
{
ExtensionObject extension = dv.Value as ExtensionObject;
Array array = dv.Value as Array;
if (array != null)
{
lvi.SubItems[(int)SubItemIndexes.Value].Text = String.Format("{0}[{1}]", dv.Value.GetType().GetElementType().Name, array.Length);
ExtensionObject extension1 = array.GetValue(0) as ExtensionObject;
if (extension1 != null)
{
// This returns "Opc.Ua.ArrayType" where arraytype is the correct array type name, should use this for the type column
lvi.SubItems[(int)SubItemIndexes.Value].Text = extension1.ToString();
//int i = 0;
foreach (object o in array)
{
ExtensionObject extension2 = o as ExtensionObject;
if (extension1 != null)
{
IEncodeable encodeable1 = extension2.Body as IEncodeable;
if (encodeable1 != null)
{
string name = encodeable1.GetType().Name;
//Utils.Trace("encodeable1.GetType().Name: {0}, array[{1}]", name, i++);
PropertyInfo[] properties = encodeable1.GetType().GetProperties();
foreach (PropertyInfo property in properties)
{
//Utils.Trace("property.Name: {0}, property.GetValue: {1}", property.Name, property.GetValue(encodeable1, null) != null ? property.GetValue(encodeable1, null).ToString():"null");
//Utils.Trace("property.Name: {0}, ", property.Name);
}
}
}
}
}
else
{
StringBuilder sb = new StringBuilder();
int i = 1;
sb.Append("{");
foreach (object o in array)
{
sb.Append(o.ToString());
if (i++ < array.Length)
{
sb.Append(", ");
}
}
sb.Append("}");
lvi.SubItems[(int)SubItemIndexes.Value].Text = sb.ToString();
}
}
else if (extension != null)
{
IEncodeable encodeable = extension.Body as IEncodeable;
if (encodeable != null)
{
lvi.SubItems[(int)SubItemIndexes.Value].Text = extension.ToString();;
}
else
{
lvi.SubItems[(int)SubItemIndexes.Value].Text = extension.Body.ToString();
}
}
else
{
lvi.SubItems[(int)SubItemIndexes.Value].Text = dv.Value.ToString();
}
lvi.ToolTipText = lvi.SubItems[(int)SubItemIndexes.Value].Text;
}
}
/// <summary>
/// Shows a value in control.
/// </summary>
private void ShowValue(ref int index, ref bool overwrite, object value)
{
if (value == null)
{
return;
}
// show monitored items.
MonitoredItem monitoredItem = value as MonitoredItem;
if (monitoredItem != null)
{
m_monitoredItem = monitoredItem;
ShowValue(ref index, ref overwrite, monitoredItem.LastValue);
return;
}
// show data changes
MonitoredItemNotification datachange = value as MonitoredItemNotification;
if (datachange != null)
{
ShowValue(ref index, ref overwrite, datachange.Value);
return;
}
// show write value with IndexRange
WriteValue writevalue = value as WriteValue;
if (writevalue != null)
{
// check if the value is an array
Array arrayvalue = writevalue.Value.Value as Array;
if (arrayvalue != null)
{
NumericRange indexRange;
ServiceResult result = NumericRange.Validate(writevalue.IndexRange, out indexRange);
if (ServiceResult.IsGood(result) && indexRange != NumericRange.Empty)
{
for (int ii = 0; ii < arrayvalue.Length; ii++)
{
bool enabled = ((indexRange.Begin <= ii && indexRange.End >= ii) ||
(indexRange.End < 0 && indexRange.Begin == ii));
ShowValue(ref index, ref overwrite, arrayvalue, ii, enabled);
}
return;
}
}
}
// show events
EventFieldList eventFields = value as EventFieldList;
if (eventFields != null)
{
for (int ii = 0; ii < eventFields.EventFields.Count; ii++)
{
ShowValue(ref index, ref overwrite, eventFields, ii);
}
return;
}
// show extension bodies.
ExtensionObject extension = value as ExtensionObject;
if (extension != null)
{
ShowValue(ref index, ref overwrite, extension.Body);
return;
}
// show encodeables.
IEncodeable encodeable = value as IEncodeable;
if (encodeable != null)
{
PropertyInfo[] properties = encodeable.GetType().GetProperties();
foreach (PropertyInfo property in properties)
{
ShowValue(ref index, ref overwrite, encodeable, property);
}
return;
}
// show bytes.
byte[] bytes = value as byte[];
if (bytes != null)
{
if (!PromptOnLongList(bytes.Length / 16))
{
return;
}
for (int ii = 0; ii < bytes.Length; ii += 16)
{
ShowValue(ref index, ref overwrite, bytes, ii);
}
return;
}
// show arrays
Array array = value as Array;
if (array == null)
{
Matrix matrix = value as Matrix;
if (matrix != null)
{
array = matrix.ToArray();
}
}
if (array != null)
{
if (!PromptOnLongList(array.GetLength(0)))
{
return;
}
for (int ii = 0; ii < array.GetLength(0); ii++)
{
ShowValue(ref index, ref overwrite, array, ii);
}
return;
}
// show lists
IList list = value as IList;
if (list != null)
{
if (!PromptOnLongList(list.Count))
{
return;
}
for (int ii = 0; ii < list.Count; ii++)
{
ShowValue(ref index, ref overwrite, list, ii);
}
return;
}
// show xml elements
XmlElement xml = value as XmlElement;
if (xml != null)
{
if (!PromptOnLongList(xml.ChildNodes.Count))
{
return;
}
for (int ii = 0; ii < xml.ChildNodes.Count; ii++)
{
ShowValue(ref index, ref overwrite, xml, ii);
}
return;
}
// show data value.
DataValue datavalue = value as DataValue;
if (datavalue != null)
{
ShowValue(ref index, ref overwrite, datavalue, 0);
ShowValue(ref index, ref overwrite, datavalue, 1);
ShowValue(ref index, ref overwrite, datavalue, 2);
ShowValue(ref index, ref overwrite, datavalue, 3);
return;
}
// show node id value.
NodeId nodeId = value as NodeId;
if (nodeId != null)
{
ShowValue(ref index, ref overwrite, nodeId, 0);
ShowValue(ref index, ref overwrite, nodeId, 1);
ShowValue(ref index, ref overwrite, nodeId, 2);
return;
}
// show expanded node id value.
ExpandedNodeId expandedNodeId = value as ExpandedNodeId;
if (expandedNodeId != null)
{
ShowValue(ref index, ref overwrite, expandedNodeId, 0);
ShowValue(ref index, ref overwrite, expandedNodeId, 1);
ShowValue(ref index, ref overwrite, expandedNodeId, 2);
ShowValue(ref index, ref overwrite, expandedNodeId, 3);
return;
}
// show qualified name value.
QualifiedName qualifiedName = value as QualifiedName;
if (qualifiedName != null)
{
ShowValue(ref index, ref overwrite, qualifiedName, 0);
ShowValue(ref index, ref overwrite, qualifiedName, 1);
return;
}
// show qualified name value.
LocalizedText localizedText = value as LocalizedText;
if (localizedText != null)
{
ShowValue(ref index, ref overwrite, localizedText, 0);
ShowValue(ref index, ref overwrite, localizedText, 1);
return;
}
// show variant.
Variant?variant = value as Variant?;
if (variant != null)
{
ShowValue(ref index, ref overwrite, variant.Value.Value);
return;
}
// show unknown types as strings.
ShowValue(ref index, ref overwrite, String.Format("{0}", value));
}
/// <summary>
/// Formats a value for display in the control.
/// </summary>
private string GetValueText(object value)
{
// check for null.
if (value == null)
{
return("(null)");
}
// format bytes.
byte[] bytes = value as byte[];
if (bytes != null)
{
StringBuilder buffer = new StringBuilder();
for (int ii = 0; ii < bytes.Length; ii++)
{
if (ii != 0 && ii % 16 == 0)
{
buffer.Append(" ");
}
buffer.AppendFormat("{0:X2} ", bytes[ii]);
}
return(buffer.ToString());
}
// format xml element.
XmlElement xml = value as XmlElement;
if (xml != null)
{
// return the entire element if not expandable.
if (!IsExpandableType(xml))
{
return(xml.OuterXml);
}
// show only the start tag.
string text = xml.OuterXml;
int index = text.IndexOf('>');
if (index != -1)
{
text = text.Substring(0, index);
}
return(text);
}
// format array.
Array array = value as Array;
if (array != null)
{
if (array.Rank > 1)
{
int[] lenghts = new int[array.Rank];
for (int i = 0; i < array.Rank; ++i)
{
lenghts[i] = array.GetLength(i);
}
return(Utils.Format("{1}[{0}]", string.Join(",", lenghts), value.GetType().GetElementType().Name));
}
else
{
return(Utils.Format("{1}[{0}]", array.Length, value.GetType().GetElementType().Name));
}
}
// format list.
IList list = value as IList;
if (list != null)
{
string type = value.GetType().Name;
if (type.EndsWith("Collection"))
{
type = type.Substring(0, type.Length - "Collection".Length);
}
else
{
type = "Object";
}
return(Utils.Format("{1}[{0}]", list.Count, type));
}
// format encodeable object.
IEncodeable encodeable = value as IEncodeable;
if (encodeable != null)
{
return(encodeable.GetType().Name);
}
// format extension object.
ExtensionObject extension = value as ExtensionObject;
if (extension != null)
{
return(GetValueText(extension.Body));
}
// check for event value.
EventFieldList eventFields = value as EventFieldList;
if (eventFields != null)
{
if (m_monitoredItem != null)
{
return(String.Format("{0}", m_monitoredItem.GetEventType(eventFields)));
}
return(eventFields.GetType().Name);
}
// check for data value.
DataValue dataValue = value as DataValue;
if (dataValue != null)
{
StringBuilder formattedValue = new StringBuilder();
if (!StatusCode.IsGood(dataValue.StatusCode))
{
formattedValue.Append("[");
formattedValue.AppendFormat("Q:{0}", dataValue.StatusCode);
}
DateTime now = DateTime.UtcNow;
if ((dataValue != null) &&
((dataValue.ServerTimestamp > now) || (dataValue.SourceTimestamp > now)))
{
if (formattedValue.ToString().Length > 0)
{
formattedValue.Append(", ");
}
else
{
formattedValue.Append("[");
}
formattedValue.Append("T:future");
}
if (formattedValue.ToString().Length > 0)
{
formattedValue.Append("] ");
}
formattedValue.AppendFormat("{0}", dataValue.Value);
return(formattedValue.ToString());
}
// use default formatting.
return(Utils.Format("{0}", value));
}