/// <summary>
/// Create query
/// </summary>
/// <param name="model"></param>
public ApplicationRecordQueryApiModel(ApplicationRecordQueryModel model)
{
ApplicationName = model.ApplicationName;
ApplicationUri = model.ApplicationUri;
ApplicationType = model.ApplicationType;
ProductUri = model.ProductUri;
ServerCapabilities = model.ServerCapabilities;
MaxRecordsToReturn = model.MaxRecordsToReturn;
StartingRecordId = model.StartingRecordId;
}
/// <inheritdoc/>
public Task <ApplicationRecordListModel> QueryApplicationsAsync(
ApplicationRecordQueryModel query, CancellationToken ct)
{
return(_database.QueryApplicationsAsync(query, ct));
}
/// <inheritdoc/>
public async Task <ApplicationRecordListModel> QueryApplicationsAsync(
ApplicationRecordQueryModel request, CancellationToken ct)
{
// TODO: implement last query time
var lastCounterResetTime = DateTime.MinValue;
var records = new List <ApplicationDocument>();
var matchQuery = false;
var complexQuery =
!string.IsNullOrEmpty(request.ApplicationName) ||
!string.IsNullOrEmpty(request.ApplicationUri) ||
!string.IsNullOrEmpty(request.ProductUri) ||
(request.ServerCapabilities != null && request.ServerCapabilities.Count > 0);
if (complexQuery)
{
matchQuery =
Opc.Ua.Gds.Server.Database.ApplicationsDatabaseBase.IsMatchPattern(
request.ApplicationName) ||
Opc.Ua.Gds.Server.Database.ApplicationsDatabaseBase.IsMatchPattern(
request.ApplicationUri) ||
Opc.Ua.Gds.Server.Database.ApplicationsDatabaseBase.IsMatchPattern(
request.ProductUri);
}
var nextRecordId = request.StartingRecordId ?? 0;
var maxRecordsToReturn = request.MaxRecordsToReturn ?? 0;
var lastQuery = false;
do
{
var queryRecords = complexQuery ? kDefaultRecordsPerQuery : maxRecordsToReturn;
var query = CreateServerQuery(nextRecordId, (int)queryRecords);
nextRecordId++;
var applications = await query.ReadAsync();
lastQuery = queryRecords == 0 || applications.Count() < queryRecords;
foreach (var application in applications.Select(a => a.Value))
{
nextRecordId = application.ID + 1;
if (!string.IsNullOrEmpty(request.ApplicationName))
{
if (!Opc.Ua.Gds.Server.Database.ApplicationsDatabaseBase.Match(
application.ApplicationName, request.ApplicationName))
{
continue;
}
}
if (!string.IsNullOrEmpty(request.ApplicationUri))
{
if (!Opc.Ua.Gds.Server.Database.ApplicationsDatabaseBase.Match(
application.ApplicationUri, request.ApplicationUri))
{
continue;
}
}
if (!string.IsNullOrEmpty(request.ProductUri))
{
if (!Opc.Ua.Gds.Server.Database.ApplicationsDatabaseBase.Match(
application.ProductUri, request.ProductUri))
{
continue;
}
}
string[] capabilities = null;
if (!string.IsNullOrEmpty(application.ServerCapabilities))
{
capabilities = application.ServerCapabilities.Split(',');
}
if (request.ServerCapabilities != null && request.ServerCapabilities.Count > 0)
{
var match = true;
foreach (var cap in request.ServerCapabilities)
{
if (capabilities == null || !capabilities.Contains(cap))
{
match = false;
break;
}
}
if (!match)
{
continue;
}
}
records.Add(application);
if (maxRecordsToReturn > 0 && --maxRecordsToReturn == 0)
{
break;
}
}
} while (maxRecordsToReturn > 0 && !lastQuery);
if (lastQuery)
{
nextRecordId = 0;
}
return(new ApplicationRecordListModel {
Applications = records.Select(a => new ApplicationRecordModel {
Application = a.ToServiceModel(),
RecordId = a.ID
}).ToList(),
LastCounterResetTime = lastCounterResetTime,
NextRecordId = nextRecordId
});
}
