feature: MIMIC-IV Replay Scenario Generator

2026-06-25 13:35:09 +08:00
parent 069881991a
commit a8964381a2
29 changed files with 916019 additions and 8 deletions
@@ -0,0 +1,70 @@
+public static class MimicCsvReader
+{
+    public static IEnumerable<T> Read<T>(
+        string filePath,
+        Func<string[], Dictionary<string, int>, T?> parser,
+        Func<string[], Dictionary<string, int>, bool>? filter = null)
+    {
+        using var reader = new StreamReader(filePath);
+        var headerLine = reader.ReadLine();
+        if (headerLine is null) yield break;
+
+        var headers = BuildHeaderIndex(headerLine);
+
+        while (reader.ReadLine() is { } line)
+        {
+            if (string.IsNullOrWhiteSpace(line)) continue;
+            var fields = line.Split(',');
+
+            if (filter is not null && !filter(fields, headers))
+                continue;
+
+            var record = parser(fields, headers);
+            if (record is not null)
+                yield return record;
+        }
+    }
+
+    public static List<T> ReadAll<T>(
+        string filePath,
+        Func<string[], Dictionary<string, int>, T?> parser)
+    {
+        return Read(filePath, parser).ToList();
+    }
+
+    private static Dictionary<string, int> BuildHeaderIndex(string headerLine)
+    {
+        var headers = new Dictionary<string, int>(StringComparer.OrdinalIgnoreCase);
+        var columns = headerLine.Split(',');
+        for (var i = 0; i < columns.Length; i++)
+            headers[columns[i].Trim()] = i;
+        return headers;
+    }
+
+    public static string Col(string[] fields, Dictionary<string, int> headers, string name)
+    {
+        return headers.TryGetValue(name, out var idx) && idx < fields.Length
+            ? fields[idx].Trim()
+            : string.Empty;
+    }
+
+    public static int? ColInt(string[] fields, Dictionary<string, int> headers, string name)
+    {
+        var val = Col(fields, headers, name);
+        return int.TryParse(val, out var result) ? result : null;
+    }
+
+    public static decimal? ColDecimal(string[] fields, Dictionary<string, int> headers, string name)
+    {
+        var val = Col(fields, headers, name);
+        return decimal.TryParse(val, System.Globalization.NumberStyles.Any,
+            System.Globalization.CultureInfo.InvariantCulture, out var result) ? result : null;
+    }
+
+    public static DateTime? ColDateTime(string[] fields, Dictionary<string, int> headers, string name)
+    {
+        var val = Col(fields, headers, name);
+        return DateTime.TryParse(val, System.Globalization.CultureInfo.InvariantCulture,
+            System.Globalization.DateTimeStyles.None, out var result) ? result : null;
+    }
+}