public PHINVADSDeviceSession(PHINVADSDevice device, ServerProcess serverProcess, Schema.DeviceSessionInfo deviceSessionInfo) : base(device, serverProcess, deviceSessionInfo)
{
// Initialize the PHINVADS Client
_factory = new CHessianProxyFactory();
_client = (VocabService)_factory.Create(typeof(VocabService), device.Endpoint);
// TODO: Establish authentication/authorization tokens?
}
private void InitializeSearchParams()
{
_searchParams = PHINVADSDevice.GetSearchParamInstanceForResource(_program.Plan, _fhirTableNode.ResourceType);
_directParams = new Dictionary <String, Object>();
// Ignoring the search params on the plan for now, create search params for this execution here
var restrictNode = _fhirTableNode.Node as RestrictNode;
if (restrictNode != null)
{
_apiType = APIType.Find;
// TODO: Generalize the stack offset here, this is safe because we know the only scenario we support is restriction of a base table var
_program.Stack.Push(null);
try
{
if (restrictNode.IsSeekable)
{
// Verify that there is only one condition and that it corresponds to a known search parameter for this resource
foreach (ColumnConditions columnConditions in restrictNode.Conditions)
{
// A seekable condition will only have one column condition
var searchParamName = GetSearchParamName(columnConditions.Column);
var searchValue = GetSearchParamValue(columnConditions[0]);
if (IsDirectSearch(columnConditions.Column.Name))
{
_apiType = APIType.Direct;
}
SetSearchParam(searchParamName, searchValue);
}
}
else if (restrictNode.IsScanable)
{
foreach (ColumnConditions columnConditions in restrictNode.Conditions)
{
// A scanable condition will always have equality as its instruction
foreach (ColumnCondition condition in columnConditions)
{
var searchParamName = GetSearchParamName(columnConditions.Column);
var searchValue = GetSearchParamValue(condition);
if (IsDirectSearch(columnConditions.Column.Name))
{
_apiType = APIType.Direct;
}
SetSearchParam(searchParamName, searchValue);
}
}
}
else
{
var searchParamNode = restrictNode.Nodes[1] as SatisfiesSearchParamNode;
if (searchParamNode != null)
{
var columnName = (string)searchParamNode.Nodes[1].Execute(_program);
var searchParamName = GetSearchParamName(columnName);
var searchValue = (string)searchParamNode.Nodes[2].Execute(_program);
if (IsDirectSearch(columnName))
{
_apiType = APIType.Direct;
}
SetSearchParam(searchParamName, searchValue);
}
}
}
finally
{
_program.Stack.Pop();
}
}
}
private string GetSearchParamName(string columnName)
{
return(PHINVADSDevice.GetSearchParamIndicatorName(_fhirTableNode.ResourceType, columnName));
}
private bool IsSearchParamColumn(Schema.TableVarColumn column)
{
return(_searchParams != null && _searchParams.GetType().GetMember(PHINVADSDevice.GetSearchParamIndicatorName(_resourceType, column.Name)) != null);
}
public void SetSearchParamContainer(Schema.DevicePlan plan)
{
_searchParams = PHINVADSDevice.GetSearchParamInstanceForResource(plan.Plan, _resourceType);
_directParams = new Dictionary <string, object>();
}