add DFS utils

csst_common/dfs.py

@@ -9,8 +9,9 @@ Modified-History:
     2023-07-11, Bo Zhang, updated DFS
     2023-12-08, Bo Zhang, tweaks
     2023-12-20, Bo Zhang, do nothing in DFS.__init__()
+    2023-12-28, Bo Zhang, add DFS.rec_to_table and DFS.rec_to_dlist
 """
-
+from astropy.table import Table
 from csst_dfs_api.common.catalog import CatalogApi
 from csst_dfs_api.facility import (
     Level0DataApi,
@@ -48,6 +49,10 @@ class DFS:
     def L2DataApi(self):
         return Level2DataApi()
 
+    @property
+    def L2TypeApi(self):
+        return Level2TypeApi()
+
     @property
     def OtherDataApi(self):
         return OtherDataApi()
@@ -55,3 +60,16 @@ class DFS:
     @property
     def CatApi(self):
         return CatalogApi()
+
+    @staticmethod
+    def rec_to_table(rec):
+        assert rec["code"] == 0, rec
+        data = list(zip(*rec["data"]))
+        colnames = rec["columns"]
+        return Table(data=data, names=colnames)
+
+    @staticmethod
+    def rec_to_dlist(rec):
+        assert rec["code"] == 0, rec
+        colnames = rec["columns"]
+        return [dict(zip(colnames, _)) for _ in rec["data"]]