/// <summary>
/// Gets the property values for a single item.
/// </summary>
/// <param name="session">The session.</param>
/// <param name="itemId">The item id.</param>
/// <param name="propertyIds">The property ids.</param>
/// <returns>The list of properities.</returns>
public DaValue[] GetPropertyValues(Session session, string itemId, params int[] propertyIds)
{
TraceState("GetPropertyValues", itemId);
ComDaReadPropertiesRequest request = new ComDaReadPropertiesRequest();
request.ItemId = itemId;
GetPropertyValues(session, new ComDaReadPropertiesRequest[] { request }, propertyIds);
return(request.Values);
}
/// <summary>
/// Gets the properties.
/// </summary>
/// <param name="requests">The requests.</param>
/// <param name="propertyIds">The property ids.</param>
/// <returns>The list of properities.</returns>
public IList<DaProperty> GetProperties(ComDaReadPropertiesRequest[] requests, params int[] propertyIds)
{
Session session = Session;
if (session == null)
{
throw ComUtils.CreateComException(ResultIds.E_FAIL);
}
return m_browseManager.GetPropertyValues(session, requests, propertyIds);
}
/// <summary>
/// Writes the values for the specified item ids.
/// </summary>
/// <param name="itemIds">The item ids.</param>
/// <param name="values">The values.</param>
/// <returns>The results.</returns>
public int[] Write(string[] itemIds, DaValue[] values)
{
int[] results = new int[itemIds.Length];
WriteValueCollection valuesToWrite = new WriteValueCollection();
ComDaReadPropertiesRequest[] requests = new ComDaReadPropertiesRequest[values.Length];
// prepare request.
for (int ii = 0; ii < itemIds.Length; ii++)
{
ComDaReadPropertiesRequest request = requests[ii] = new ComDaReadPropertiesRequest();
request.ItemId = itemIds[ii];
}
// need to get the data type of the remote node.
m_browseManager.GetPropertyValues(Session, requests, PropertyIds.UaBuiltInType, PropertyIds.UaValueRank);
// validate items.
for (int ii = 0; ii < requests.Length; ii++)
{
ComDaReadPropertiesRequest request = requests[ii];
if (request.Error < 0)
{
results[ii] = request.Error;
continue;
}
int? builtInType = request.Values[0].Value as int?;
int? valueRank = request.Values[1].Value as int?;
if (builtInType == null || valueRank == null)
{
results[ii] = ResultIds.E_UNKNOWNITEMID;
continue;
}
// convert value to UA data type.
WriteValue valueToWrite = new WriteValue();
valueToWrite.NodeId = m_mapper.GetRemoteNodeId(itemIds[ii]);
valueToWrite.AttributeId = Attributes.Value;
valueToWrite.Handle = ii;
// convert value to UA data type.
try
{
TypeInfo remoteType = new TypeInfo((BuiltInType)builtInType.Value, valueRank.Value);
valueToWrite.Value = m_mapper.GetRemoteDataValue(values[ii], remoteType);
}
catch (Exception e)
{
results[ii] = ComUtils.GetErrorCode(e, ResultIds.E_BADTYPE);
continue;
}
valuesToWrite.Add(valueToWrite);
}
// check if nothing to do.
if (valuesToWrite.Count == 0)
{
return results;
}
// write the values to the server.
int[] remoteResults = m_groupManager.Write(valuesToWrite);
// copy results.
for (int ii = 0; ii < valuesToWrite.Count; ii++)
{
results[(int)valuesToWrite[ii].Handle] = remoteResults[ii];
}
return results;
}
/// <summary>
/// Writes the values for the specified item ids.
/// </summary>
/// <param name="itemIds">The item ids.</param>
/// <param name="values">The values.</param>
/// <returns>The results.</returns>
public int[] Write(string[] itemIds, DaValue[] values)
{
int[] results = new int[itemIds.Length];
WriteValueCollection valuesToWrite = new WriteValueCollection();
ComDaReadPropertiesRequest[] requests = new ComDaReadPropertiesRequest[values.Length];
// prepare request.
for (int ii = 0; ii < itemIds.Length; ii++)
{
ComDaReadPropertiesRequest request = requests[ii] = new ComDaReadPropertiesRequest();
request.ItemId = itemIds[ii];
}
// need to get the data type of the remote node.
m_browseManager.GetPropertyValues(Session, requests, PropertyIds.UaBuiltInType, PropertyIds.UaValueRank);
// validate items.
for (int ii = 0; ii < requests.Length; ii++)
{
ComDaReadPropertiesRequest request = requests[ii];
if (request.Error < 0)
{
results[ii] = request.Error;
continue;
}
int?builtInType = request.Values[0].Value as int?;
int?valueRank = request.Values[1].Value as int?;
if (builtInType == null || valueRank == null)
{
results[ii] = ResultIds.E_UNKNOWNITEMID;
continue;
}
// convert value to UA data type.
WriteValue valueToWrite = new WriteValue();
valueToWrite.NodeId = m_mapper.GetRemoteNodeId(itemIds[ii]);
valueToWrite.AttributeId = Attributes.Value;
valueToWrite.Handle = ii;
// convert value to UA data type.
try
{
TypeInfo remoteType = new TypeInfo((BuiltInType)builtInType.Value, valueRank.Value);
valueToWrite.Value = m_mapper.GetRemoteDataValue(values[ii], remoteType);
}
catch (Exception e)
{
results[ii] = ComUtils.GetErrorCode(e, ResultIds.E_BADTYPE);
continue;
}
valuesToWrite.Add(valueToWrite);
}
// check if nothing to do.
if (valuesToWrite.Count == 0)
{
return(results);
}
// write the values to the server.
int[] remoteResults = m_groupManager.Write(valuesToWrite);
// copy results.
for (int ii = 0; ii < valuesToWrite.Count; ii++)
{
results[(int)valuesToWrite[ii].Handle] = remoteResults[ii];
}
return(results);
}
/// <summary>
/// Gets the property values for a single item.
/// </summary>
/// <param name="session">The session.</param>
/// <param name="itemId">The item id.</param>
/// <param name="propertyIds">The property ids.</param>
/// <returns>The list of properities.</returns>
public DaValue[] GetPropertyValues(Session session, string itemId, params int[] propertyIds)
{
TraceState("GetPropertyValues", itemId);
ComDaReadPropertiesRequest request = new ComDaReadPropertiesRequest();
request.ItemId = itemId;
GetPropertyValues(session, new ComDaReadPropertiesRequest[] { request }, propertyIds);
return request.Values;
}
/// <summary>
/// Gets the properties for list of items.
/// </summary>
/// <param name="session">The session.</param>
/// <param name="requests">The requests.</param>
/// <param name="propertyIds">The property ids.</param>
/// <returns>The list of properities.</returns>
public IList<DaProperty> GetPropertyValues(Session session, ComDaReadPropertiesRequest[] requests, params int[] propertyIds)
{
return m_cache.GetPropertyValues(session, requests, propertyIds);
}
/// <summary>
/// Updates the read property request with the property values.
/// </summary>
/// <param name="request">The request.</param>
/// <param name="element">The element.</param>
/// <param name="propertyIds">The property ids.</param>
private void UpdateReadPropertyRequest(ComDaReadPropertiesRequest request, BrowseElement element, int[] propertyIds)
{
if (element == null)
{
request.Error = ResultIds.E_UNKNOWNITEMID;
return;
}
request.Values = new DaValue[propertyIds.Length];
for (int ii = 0; ii < propertyIds.Length; ii++)
{
request.Values[ii] = GetPropertyValue(element, propertyIds[ii]);
}
}
/// <summary>
/// Gets the properties.
/// </summary>
/// <param name="session">The session.</param>
/// <param name="requests">The requests.</param>
/// <param name="propertyIds">The property ids.</param>
/// <returns>The list of properities.</returns>
public IList<DaProperty> GetPropertyValues(Session session, ComDaReadPropertiesRequest[] requests, params int[] propertyIds)
{
TraceState("GetPropertyValues", requests.Length);
// select all supported properties if none provided
IList<DaProperty> properties = s_SupportedProperties;
if (propertyIds == null || propertyIds.Length == 0)
{
propertyIds = new int[s_SupportedProperties.Length];
for (int ii = 0; ii < propertyIds.Length; ii++)
{
propertyIds[ii] = s_SupportedProperties[ii].PropertyId;
}
}
// return the descriptions that match the requested properties.
else
{
properties = new DaProperty[propertyIds.Length];
for (int ii = 0; ii < propertyIds.Length; ii++)
{
for (int jj = 0; jj < s_SupportedProperties.Length; jj++)
{
if (propertyIds[ii] == s_SupportedProperties[jj].PropertyId)
{
properties[ii] = s_SupportedProperties[jj];
break;
}
}
}
}
// build a list of elements to create.
BrowseElement[] elements = new BrowseElement[requests.Length];
int[] indexes = new int[requests.Length];
BrowseDescriptionCollection nodesToBrowse = new BrowseDescriptionCollection();
for (int ii = 0; ii < requests.Length; ii++)
{
BrowseElement element = null;
// lookup element in cache.
lock (m_lock)
{
string itemId = requests[ii].ItemId;
if (String.IsNullOrEmpty(itemId))
{
requests[ii].Error = ResultIds.E_INVALIDITEMID;
elements[ii] = null;
continue;
}
// if (m_cache.TryGetValue(itemId, out element))
// {
// UpdateReadPropertyRequest(requests[ii], element, propertyIds);
// continue;
// }
// create a new element.
elements[ii] = element = new BrowseElement();
}
element.ItemId = requests[ii].ItemId;
element.NodeId = m_mapper.GetRemoteNodeId(element.ItemId);
// prepare a request to browse the children.
indexes[ii] = PrepareBrowseElementBrowseRequest(element.NodeId, nodesToBrowse);
}
// check if nothing more to do.
if (nodesToBrowse.Count == 0)
{
return properties;
}
// browse all elements at once.
BrowseResultCollection results = Browse(session, nodesToBrowse);
// validate results and prepare read requests.
ReadValueIdCollection nodesToRead = new ReadValueIdCollection();
for (int ii = 0; ii < elements.Length; ii++)
{
BrowseElement element = elements[ii];
if (element == null)
{
continue;
}
// update the element with the children found.
if (!UpdateBrowseElement(element, nodesToBrowse, results, indexes[ii]))
{
requests[ii].Error = ResultIds.E_UNKNOWNITEMID;
elements[ii] = null;
continue;
}
// prepare to read the properties from the server.
indexes[ii] = PrepareBrowseElementReadRequest(
element.NodeId,
element.ReferencesByName,
nodesToRead,
NodeClass.Unspecified,
false);
}
// check if nothing to do.
if (nodesToRead.Count == 0)
{
return properties;
}
// read all child properties at once.
DataValueCollection values = Read(session, nodesToRead);
// process results and build final table.
for (int ii = 0; ii < elements.Length; ii++)
{
BrowseElement element = elements[ii];
if (element == null)
{
continue;
}
// update the browse element with the property values.
if (!UpdateBrowseElement(session.TypeTree, element, nodesToRead, values, NodeClass.Unspecified, false, indexes[ii]))
{
requests[ii].Error = ResultIds.E_UNKNOWNITEMID;
continue;
}
UpdateReadPropertyRequest(requests[ii], element, propertyIds);
// save element in cache.
lock (m_lock)
{
element.CacheTimestamp = DateTime.UtcNow;
m_cache[element.ItemId] = element;
}
}
// return the descriptions.
return properties;
}
