v1: executing-plans 模式生成，54 文件 1320 行 Python

config/mapping.py

@@ -0,0 +1,45 @@
+import yaml
+from dataclasses import dataclass, field
+from pathlib import Path
+
+
+@dataclass
+class FieldMapping:
+    cobol_field: str
+    java_field: str
+    field_type: str = "string"
+    precision: int = 0
+    trim: bool = False
+    format: str = ""
+    init_strategy: str = "auto"
+
+
+@dataclass
+class MappingConfig:
+    program: str = ""
+    dialect: str = "ibm"
+    field_mappings: list[FieldMapping] = field(default_factory=list)
+    redefines_strategy: dict = field(default_factory=dict)
+
+    @classmethod
+    def from_yaml(cls, path: str) -> "MappingConfig":
+        data = yaml.safe_load(Path(path).read_text())
+        c = cls()
+        c.program = data.get("program", "")
+        c.dialect = data.get("dialect", "ibm")
+        for fm in data.get("field_mapping", []):
+            c.field_mappings.append(FieldMapping(**fm))
+        c.redefines_strategy = data.get("redefines_strategy", {})
+        return c
+
+    def get_java_field(self, cobol_name: str) -> str:
+        for m in self.field_mappings:
+            if m.cobol_field == cobol_name:
+                return m.java_field
+        return cobol_name
+
+
+_m = FieldMapping(cobol_field="BR-AMT", java_field="billAmount", field_type="decimal", precision=2)
+assert _m.cobol_field == "BR-AMT"
+assert _m.java_field == "billAmount"
+assert _m.precision == 2