public OpenEhrToFhirAdapterBase ProcessMessage(string message)
{
// get all classes which inherit OpenEhrToFhirAdapterBase
// (this gets all adapters and passes the message into the adapter constructor which automatically processes the message using that adapter)
var adapters = ReflectionHelper.GetEnumerableOfType <OpenEhrToFhirAdapterBase>(message);
// set default highest confidence
var highestConfidence = 0.0;
// set default chosenOpenEhrToFhirAdapter
OpenEhrToFhirAdapterBase chosenOpenEhrToFhirAdapter = null;
// loop through all adapters
foreach (var adapter in adapters)
{
// check if the confidence score of this adapter is higher than the current
if (adapter.ConfidenceScore > highestConfidence || chosenOpenEhrToFhirAdapter == null)
{
// set the current highest confidence score
highestConfidence = adapter.ConfidenceScore;
// set the current adapter
chosenOpenEhrToFhirAdapter = adapter;
}
}
// log some info
//Log.Info($"Received message and selected adapter: {chosenOpenEhrToFhirAdapter?.AdapterName} with confidence of {chosenOpenEhrToFhirAdapter?.ConfidenceScore}%.\n");
// return the chosen adapter
return(chosenOpenEhrToFhirAdapter);
}
public override OpenEhrToFhirAdapterBase ProcessMappings(OpenEhrToFhirAdapterBase adapter)
{
foreach (var mapping in adapter.Mappings.Where(x => x.MappingType == MappingType.Resource))
{
// calculate number of resources of this type are required
var number = adapter.OpenEhrRecord.FindMany(mapping, new List <Component>()).Count;
for (var i = 0; i < number; i++)
{
var resource = (Resource)Activator.CreateInstance("Hl7.Fhir.STU3.Core", "Hl7.Fhir.Model." + ((ResourceMapping)mapping).ResourceTargetType).Unwrap();
adapter.ResourceList.Add(resource);
//Log.Info($"Added resource of type {resource.GetType().Name} to ResourceList[{adapter.ResourceList.Count - 1}].");
}
}
return(adapter);
}
public override OpenEhrToFhirAdapterBase ProcessMappings(OpenEhrToFhirAdapterBase adapter)
{
foreach (var mapping in adapter.Mappings.Where(x => x.MappingType == MappingType.Extension))
{
var nodes = adapter.OpenEhrRecord.FindMany(mapping, new List <Component>());
// 2.2 Work out destination of this mapping item
foreach (var node in nodes)
{
// check if the current node has been processed already
if (adapter.ProcessedNodes.Contains(node))
{
continue;
}
// get the resource that this node should be mapped to
var rootResourceIndex = node.ParentResourceIndex(adapter.Mappings);
// if this node has no parent resource index then we skip it
if (rootResourceIndex == int.MinValue)
{
continue;
}
// Get parent object of attribute
var resourceRoot = adapter.ResourceList[rootResourceIndex];
// gets the reference to a fhir field and also returns the index of the field if the field is a list item
// if val is not null here then it means the field has been instantiated by a list node mapping operation and must be part of a list
// if val is null then it means the field has not been instantiated previously.
var oldValue = GetFhirObject(resourceRoot, adapter, node, out _);
// constructs the value to place at the target field location
var newValue = ConstructNewTargetValue(adapter, node, mapping, oldValue);
// updates the target field in the fhir resource and returns the updated adapter
adapter = SetFhirValue(resourceRoot, adapter, node, newValue, oldValue);
}
}
return(adapter);
}
public override OpenEhrToFhirAdapterBase ProcessMappings(OpenEhrToFhirAdapterBase adapter)
{
foreach (var mapping in adapter.Mappings.Where(x => x.MappingType == MappingType.Conditional))
{
var nodes = adapter.OpenEhrRecord.FindMany(mapping, new List <Component>());
// 2.2 Work out destination of this mapping item
foreach (var node in nodes)
{
// check if the current node has been processed already
if (adapter.ProcessedNodes.Contains(node))
{
continue;
}
// get the resource that this node should be mapped to
var rootResourceIndex = node.ParentResourceIndex(adapter.Mappings);
// if this node has no parent resource index then we skip it
if (rootResourceIndex == int.MinValue)
{
continue;
}
// Get parent object of attribute
var resourceRoot = adapter.ResourceList[rootResourceIndex];
var oldValue = GetFhirObject(resourceRoot, adapter, node, out var index);
// constructs the value to place at the target field location
var newValue = ConstructNewTargetValue(adapter, node, mapping, oldValue);
adapter = SetFhirValue(resourceRoot, adapter, node, newValue, oldValue, index);
}
}
return(adapter);
}
/// <summary>
/// gets the reference to a fhir field and also returns the index of the field if the field is a list item
/// if oldValue is not null here then it means the field has been instantiated by a list node mapping operation and must be part of a list
/// if oldValue is null then it means the field has not been instantiated previously.
/// </summary>
/// <param name="resourceRoot">The root resource to be searched i.e. AllergyIntolerance, Patient etc.</param>
/// <param name="adapter">The adapter currently being used.</param>
/// <param name="node">The current node being used in the process mapping method.</param>
/// <param name="index">If the value of the field is inside a list then it's index in the list will be returned.</param>
/// <returns>Returns the object found at the search location, also returns the index of the field if the field is a list item.</returns>
public object GetFhirObject(Resource resourceRoot, OpenEhrToFhirAdapterBase adapter, Component node, out int index)
{
// get the path inside the resource where this property should be set
var finalRoute = node.InnerNetPath(adapter.Mappings);
if (string.IsNullOrEmpty(finalRoute))
{
finalRoute = node.NetPath(adapter.Mappings);
}
// get the index of the parent list to put the property inside
var start = finalRoute.LastIndexOf('[') + 1;
var end = finalRoute.LastIndexOf(']');
index = int.MinValue;
if (start != -1 && end != -1)
{
var indexStr = finalRoute.Substring(start, end - start);
if (!int.TryParse(indexStr, out index))
{
throw new Exception("Failed to parse index.");
}
}
if (finalRoute.Split('.').Last().EndsWith("]"))
{
finalRoute = finalRoute.Remove(finalRoute.LastIndexOf('['));
}
var value = resourceRoot.GetPropertyValue(finalRoute);
if (value == null)
{
// recursively check through all properties for one matching the end node of the mapping
}
return(value);
}
public override OpenEhrToFhirAdapterBase ProcessMappings(OpenEhrToFhirAdapterBase adapter)
{
foreach (var mapping in adapter.Mappings.Where(x => x.MappingType == MappingType.List))
{
var listNodes = adapter.OpenEhrRecord.FindMany(mapping, new List <Component>());
foreach (var node in listNodes)
{
var netPath = node.NetPath(adapter.Mappings);
var innerNetPath = node.InnerNetPath(adapter.Mappings);
var pi = adapter.GetPropertyInfo(netPath);
var componentType = pi.PropertyType.GetGenericArguments()[0];
var constructedListType = typeof(List <>).MakeGenericType(componentType);
var listInstance = (IList)Activator.CreateInstance(constructedListType);
var subNodes = ((Composite)node.Parent).FindMany(mapping, new List <Component>()).ToList();
var counter = 0;
while (counter < subNodes.Count)
{
var subNode = subNodes[counter];
if (Regex.Match(subNode.Name, ":\\d+\\|+").Success)
{
var regex = $"{subNode.Name.Split(':')[0]}:{subNode.ListIndex}+\\|+";
var siblings = subNodes.Where(x =>
Regex.Match(x.Name, regex).Success &&
x.ParentResourceIndex(adapter.Mappings) == subNode.ParentResourceIndex(adapter.Mappings)).ToList();
var passes = siblings.DistinctBy(x => x.Parent.NetPath(adapter.Mappings)).Count();
for (var i = 0; i < passes; i++)
{
var system = (Composite)siblings.Where(x => x.Name.Contains("terminology")).ToList()[i];
var code = (Composite)siblings.Where(x => x.Name.Contains("code")).ToList()[i];
var text = (Composite)siblings.Where(x => x.Name.Contains("value")).ToList()[i];
if (system != null)
{
counter++;
}
if (code != null)
{
counter++;
}
if (text != null)
{
counter++;
}
listInstance.Add(Activator.CreateInstance(componentType, null));
}
}
else
{
counter++;
listInstance.Add(Activator.CreateInstance(componentType, null));
}
}
var obj = adapter.GetPropertyValue(netPath);
if (!ReflectionHelper.SetValue(obj, innerNetPath, listInstance))
{
var innerPi = adapter.GetPropertyInfo(netPath);
obj = adapter.GetPropertyValue(netPath.Remove(netPath.LastIndexOf('.')));
try
{
innerPi.SetValue(obj, listInstance);
}
catch
{
//Log.Error($"Failed to map list {mapping.OpenEhrFieldPath} to {mapping.FhirFieldPath}.");
}
}
}
}
return(adapter);
}
/// <summary>
/// Constructs the object which will be placed at the target FHIR location according the mapping rules and openEHR message values.
/// </summary>
/// <param name="adapter">The current adapter being processed.</param>
/// <param name="node">The current node being processed.</param>
/// <returns>Returns the constructed value to be placed at the target FHIR location.</returns>
public object ConstructNewTargetValue(OpenEhrToFhirAdapterBase adapter, Component node, BaseMapping mapping, object oldValue = null)
{
object newTargetValue = null;
// fhir resource destination
var destination = node.NetPath(adapter.Mappings);
// list + CodeableConcept combined logic i.e. substance:0|code or substance|code
if (Regex.Match(node.Name, ":\\d+\\|+").Success ||
Regex.Match(node.Name, $"{mapping.OpenEhrFieldPath}\\|+").Success ||
Regex.Match(node.Name, $"{mapping.OpenEhrFieldPath}:\\d+").Success)
{
// Get all components of this codeable concept
var siblingNodes = ((Composite)node.Parent).FindMany(mapping, new List <Component>()).Where(x => x.NetPath(adapter.Mappings) == destination).ToList();
var system = ((Composite)siblingNodes.FirstOrDefault(x => x.Name.Contains("terminology")))?.Children[0].Name;
var code = ((Composite)siblingNodes.FirstOrDefault(x => x.Name.Contains("code")))?.Children[0].Name;
var text = ((Composite)siblingNodes.FirstOrDefault(x => x.Name.Contains("value")))?.Children[0].Name;
if (system == null && code == null && text == null)
{
newTargetValue = StringHelper.ParseOpenEhrCcString(((Composite)node).Children.First().Name);
}
else
{
newTargetValue = new CodeableConcept(system, code, text);
}
if (GetType() == typeof(ConditionalMapping))
{
// the type of codeable concept type to search for i.e. Terminology/Code/Value
var conditionalSearchType = ((ConditionalMapping)mapping).Conditions.First().Item1;
// the actual value to search for in order to match the conditional mapping
var conditionalSearchValue = string.Empty;
switch (conditionalSearchType)
{
case "code":
{
conditionalSearchValue = code;
break;
}
case "terminology":
{
conditionalSearchValue = system;
break;
}
case "value":
{
conditionalSearchValue = text;
break;
}
}
var metConditions = ((ConditionalMapping)mapping).Conditions.Where(x =>
string.Equals(x.Item2, conditionalSearchValue, StringComparison.InvariantCultureIgnoreCase))
.ToList();
var destinationIsCollection = oldValue is IEnumerable;
if (destinationIsCollection)
{
if (((IList)oldValue).Count == 0)
{
var listGenericType = oldValue.GetType().GenericTypeArguments[0];
var codeGenericType = metConditions[0].Item3.GetType();
var list = (IList)Activator.CreateInstance(typeof(List <>).MakeGenericType(listGenericType), null);
foreach (var metCondition in metConditions)
{
var obj = Activator.CreateInstance(typeof(Code <>).MakeGenericType(codeGenericType), metCondition.Item3);
list.Add(obj);
}
newTargetValue = list;
}
}
else
{
newTargetValue = metConditions[0].Item3;
}
}
else if (GetType() == typeof(ExtensionMapping))
{
if (oldValue != null)
{
((List <Extension>)oldValue).Add(new Extension(
((ExtensionMapping)mapping).ExtensionFhirStructureDefinitionUrl,
new CodeableConcept(system, code, text)));
newTargetValue = oldValue;
}
}
// mark these nodes as processed so skip duplicate processing
adapter.ProcessedNodes.AddRange(siblingNodes);
}
else
{
var siblingNodes = ((Composite)node.Parent).FindMany(mapping, new List <Component>()).Where(x => x.NetPath(adapter.Mappings) == destination).ToList();
if (GetType() == typeof(ExtensionMapping))
{
var childLeafValue = ((Composite)node).Children[0] as Composite;
((List <Extension>)oldValue).Add(new Extension(((ExtensionMapping)mapping).ExtensionFhirStructureDefinitionUrl, new FhirString(childLeafValue?.Children[0].Name)));
newTargetValue = oldValue;
}
else
{
if (siblingNodes.Count == 1)
{
newTargetValue = StringHelper.ParseOpenEhrCcString(((Composite)siblingNodes[0]).Children[0].Name);
}
else
{
var index = node.ParentResourceIndex(adapter.Mappings);
var t_node = (Composite)siblingNodes.Where(x => x.NetPath(adapter.Mappings) == destination).ToList()[index];
newTargetValue = StringHelper.ParseOpenEhrCcString(t_node.Children[0].Name);
}
}
adapter.ProcessedNodes.AddRange(siblingNodes);
}
return(newTargetValue);
}
/// <summary> /// Execute the processing of this mapping type. /// </summary> /// <param name="adapter">The adapter adapter which contains the mappings you want to execute.</param> /// <returns>An updated version of the adapter containing the results of the executed mappings.</returns> public abstract OpenEhrToFhirAdapterBase ProcessMappings(OpenEhrToFhirAdapterBase adapter);
/// <summary>
///
/// </summary>
/// <param name="resourceRoot"></param>
/// <param name="adapter"></param>
/// <param name="node"></param>
/// <param name="newValue"></param>
/// <param name="oldValue"></param>
/// <param name="index"></param>
/// <returns></returns>
public OpenEhrToFhirAdapterBase SetFhirValue(Resource resourceRoot, OpenEhrToFhirAdapterBase adapter, Component node, object newValue, object oldValue = null, int index = int.MinValue)
{
var points = 1;
// setting a not null property which is inside a list
if (oldValue != null && index != int.MinValue)
{
var setListItemMethod = oldValue.GetType().GetMethod("set_Item");
if (setListItemMethod != null)
{
setListItemMethod.Invoke(oldValue, new[] { index, newValue });
adapter.SuccessfulMappingCount += points;
//Log.Info($"Mapped {GetType().Name} from {OpenEhrFieldPath} to {node.InnerNetPath(adapter.Mappings)} & yielded +{points} for total of {adapter.SuccessfulMappingCount} successes for this adapter.");
}
}
// setting a null property which is not in a list
else
{
var childPathFromParent = node.InnerNetPath(adapter.Mappings);
object parentObject;
if (childPathFromParent.LastIndexOf('.') < 0)
{
parentObject = resourceRoot;
}
else
{
var parentObjectPath = childPathFromParent.Remove(childPathFromParent.LastIndexOf('.'));
parentObject = resourceRoot.GetPropertyValue(parentObjectPath);
}
// get the property name that we want to set
var childProperty = childPathFromParent.Split('.').Last();
// set codeable concept in parent object which isn't at the root resource i.e. Resource.Property[0].AnotherProperty[1]
if (ReflectionHelper.SetValue(parentObject, childProperty, newValue))
{
adapter.SuccessfulMappingCount += points;
}
// set primitive data type in parent object which isn't at the root resource i.e. Resource.Property[0].AnotherProperty
else if (ReflectionHelper.SetValue(parentObject, childProperty, ((Composite)node).Children[0].Name))
{
adapter.SuccessfulMappingCount += points;
}
// set primitive data type in parent object which is at the root resource i.e. Resource.Property
else
{
if (ReflectionHelper.SetValue(resourceRoot, childProperty, ((Composite)node).Children[0].Name))
{
adapter.SuccessfulMappingCount += points;
}
else
{
//Log.Error($"Failed to map attribute with mapping {OpenEhrFieldPath} to {FhirFieldPath}.");
}
}
//Log.Info($"Mapped {GetType().Name} from {OpenEhrFieldPath} to {childPathFromParent} & yielded +{points} for total of {adapter.SuccessfulMappingCount} successes for this adapter.");
}
return(adapter);
}
