v3: gstack-code-gen 生成

comparator/aligner.py

@@ -0,0 +1,30 @@
+def align_records(cobol_records: list[dict], java_records: list[dict],
+                 key_field: str = "CUST-ID") -> list[tuple]:
+    if not cobol_records and not java_records:
+        return []
+
+    def _by(records, kf):
+        d = {}
+        for r in records:
+            key = str(r.get(kf, "__NONE__"))
+            d.setdefault(key, []).append(r)
+        return d
+
+    c_by = _by(cobol_records, key_field)
+    j_by = _by(java_records, key_field)
+    pairs = []
+    all_keys = set(c_by) | set(j_by)
+
+    for k in sorted(all_keys):
+        c_items = c_by.get(k, [])
+        j_items = j_by.get(k, [])
+        for i in range(max(len(c_items), len(j_items))):
+            c = c_items[i] if i < len(c_items) else None
+            j = j_items[i] if i < len(j_items) else None
+            if c and j:
+                pairs.append((c, j, "MATCHED"))
+            elif c:
+                pairs.append((c, None, "MISSING_IN_SPARK"))
+            else:
+                pairs.append((None, j, "EXTRA_IN_SPARK"))
+    return pairs