Update DicomSource.cs

Implement simple meanings + values squashing plus ICD11 extraction

Rdmp.Dicom/PipelineComponents/DicomSources/DicomSource.cs

@@ -9,7 +9,6 @@
 using System.Data;
 using System.IO;
 using System.Linq;
-using System.Reflection.Metadata.Ecma335;
 using System.Text.RegularExpressions;
 using Rdmp.Core.Curation.Data;
 using Rdmp.Core.DataFlowPipeline;
@@ -104,10 +103,19 @@ public void Check(ICheckNotifier notifier)
             notifier.OnCheckPerformed(new CheckEventArgs("Could not deserialize TagElevationConfigurationFile", CheckResult.Fail, e));
         }
 
-        if (string.IsNullOrWhiteSpace(ArchiveRoot)) return;
-        if (!Path.IsPathRooted(ArchiveRoot))
+        // Fail if a non-absolute ArchiveRoot is set:
+        if (!string.IsNullOrWhiteSpace(ArchiveRoot) && !Path.IsPathFullyQualified(ArchiveRoot))
             notifier.OnCheckPerformed(new CheckEventArgs("ArchiveRoot is not rooted, it must be an absolute path e.g. c:\\temp\\MyImages\\", CheckResult.Fail));
+    }
+
+    private IEnumerable<string> SquashTree(DicomDataset ds, DicomTag t)
+    {
+        if (ds.TryGetSingleValue(t, out string value)) yield return value;
 
+        foreach (var datum in ds)
+            if (datum is DicomSequence seq)
+                foreach (var d in seq.SelectMany(i => SquashTree(i, t)))
+                    yield return d;
     }
 
     /// <summary>
@@ -128,6 +136,12 @@ protected void ProcessDataset(string filename, DicomDataset ds, DataTable dt, ID
 
         var rowValues = new Dictionary<string, object>();
 
+        // First collect all CodeMeaning and CodeValue values as strings:
+        var meanings = string.Join('\n', SquashTree(ds, DicomTag.CodeMeaning));
+        if (!string.IsNullOrWhiteSpace(meanings)) rowValues.Add("CodeMeanings", meanings);
+        var values = string.Join('\n', SquashTree(ds, DicomTag.CodeValue));
+        if (!string.IsNullOrWhiteSpace(values)) rowValues.Add("CodeValues", values);
+
         foreach (var item in ds)
         {
             // First special-case Sequences such as ICD11 diagnostic codes:
@@ -141,10 +155,6 @@ protected void ProcessDataset(string filename, DicomDataset ds, DataTable dt, ID
                     rowValues.Add("ICD11code", code.GetSingleValueOrDefault(DicomTag.CodeValue, "missing"));
                     rowValues.Add("ICD11meaning", code.GetSingleValueOrDefault(DicomTag.CodeMeaning, "missing"));
                 }
-                else
-                {
-                    // TODO: Handle other code pairs
-                }
 
                 continue;
             }