Provide a clearer error message in case the rupture can not be converted from the USGS format

openquake/commonlib/readinput.py

@@ -851,7 +851,9 @@ def get_rupture(oqparam):
     elif rupture_model and rupture_model.endswith('.json'):
         with open(rupture_model) as f:
             rup_data = json.load(f)
-        rup = convert_to_oq_rupture(rup_data)
+        rup, err_msg = convert_to_oq_rupture(rup_data)
+        if err_msg:
+            logging.warning(err_msg)
     if rup is None:  # assume rupture_dict
         rup = build_planar_rupture_from_dict(oqparam.rupture_dict)
     return rup
@@ -1022,7 +1024,8 @@ def _cons_coeffs(df, perils, loss_dt, limit_states):
             if len(the_df) == 1:
                 coeffs[peril][loss_type] = the_df[limit_states].to_numpy()[0]
             elif len(the_df) > 1:
-                raise ValueError(f'Multiple consequences for {loss_type=}, {peril=}\n%s' % the_df)
+                raise ValueError(
+                    f'Multiple consequences for {loss_type=}, {peril=}\n%s' % the_df)
     return coeffs
 
 
@@ -1339,7 +1342,8 @@ def _taxonomy_mapping(filename, taxidx):
     if 'conversion' in tmap_df.columns:
         # conversion was the old name in the header for engine <= 3.12
         tmap_df = tmap_df.rename(columns={'conversion': 'risk_id'})
-    assert set(tmap_df) == {'country', 'peril', 'taxonomy', 'risk_id', 'weight'}, set(tmap_df)
+    assert set(tmap_df) == {'country', 'peril', 'taxonomy',
+                            'risk_id', 'weight'}, set(tmap_df)
     taxos = set()
     for (taxo, per), df in tmap_df.groupby(['taxonomy', 'peril']):
         taxos.add(taxo)

openquake/hazardlib/shakemap/parsers.py

@@ -223,7 +223,8 @@ def convert_to_oq_rupture(rup_json):
     """
     Convert USGS json (output of download_rupture_data) into an hazardlib rupture
 
-    :returns: None if not convertible
+    :returns: a openquake.hazardlib.source.rupture.BaseRupture object if convertible and
+        an error message if not convertible
     """
     ftype = rup_json['features'][0]['geometry']['type']
     multicoords = rup_json['features'][0]['geometry']['coordinates'][0]
@@ -235,7 +236,14 @@ def convert_to_oq_rupture(rup_json):
         trt = 'Active Shallow Crust' if hyp_depth < 50 else 'Subduction IntraSlab'
         mag = rup_json['metadata']['mag']
         rup = get_multiplanar(multicoords, mag, rake, trt)
-        return rup
+        return rup, None
+    else:
+        if ftype != 'MultiPolygon':
+            reason = f'only MultiPolygon geometries are accepted (not {ftype})'
+        else:
+            reason = 'at least one surface is not rectangular'
+        err_msg = f'Unable to convert the rupture from the USGS format: {reason}'
+        return None, err_msg
 
 
 def utc_to_local_time(utc_timestamp, lon, lat):
@@ -379,7 +387,7 @@ def usgs_stations_to_oq_format(stations, exclude_imts=(), seismic_only=False):
     imts = []
     for col in stations.columns:
         if ('_VALUE' in col or '_LN_SIGMA' in col or
-            '_STDDEV' in col and col != 'DISTANCE_STDDEV'):
+                '_STDDEV' in col and col != 'DISTANCE_STDDEV'):
             imt = col.split('_')[0]
             if imt not in exclude_imts:
                 assert col not in imts
@@ -779,8 +787,8 @@ def _get_rup_from_json(usgs_id, rupture_file, station_data_file):
     if usgs_id == 'FromFile':
         rupdic = convert_rup_data(rup_data, usgs_id, rupture_file)
         rupdic['station_data_file'] = station_data_file
-        rup = convert_to_oq_rupture(rup_data)
-    return rup, rupdic, rup_data
+        rup, err_msg = convert_to_oq_rupture(rup_data)
+    return rup, rupdic, rup_data, err_msg
 
 
 def get_rup_dic(dic, user=User(),
@@ -824,8 +832,10 @@ def get_rup_dic(dic, user=User(),
             rup, rupdic, err = _get_rup_dic_from_xml(
                 usgs_id, user, rupture_file, station_data_file)
         elif rupture_file.endswith('.json'):
-            rup, rupdic, rup_data = _get_rup_from_json(usgs_id, rupture_file,
-                                                       station_data_file)
+            rup, rupdic, rup_data, err_msg = _get_rup_from_json(
+                usgs_id, rupture_file, station_data_file)
+            if err_msg:
+                err = {"status": "failed", "error_msg": err_msg}
         if err or usgs_id == 'FromFile':
             return rup, rupdic, err
     assert usgs_id
@@ -885,10 +895,10 @@ def get_rup_dic(dic, user=User(),
         except ValueError as exc:
             err = {"status": "failed", "error_msg": str(exc)}
         return rup, rupdic, err
-    rup = convert_to_oq_rupture(rup_data)
+    rup, err_msg = convert_to_oq_rupture(rup_data)
     if rup is None:
         # in parsers_test for us6000jllz
-        rupdic['rupture_issue'] = 'Unable to convert the rupture from the USGS format'
+        rupdic['rupture_issue'] = err_msg
         rupdic['require_dip_strike'] = True
     # in parsers_test for usp0001ccb
     return rup, rupdic, err

openquake/hazardlib/tests/shakemap/parsers_test.py

@@ -113,8 +113,9 @@ def test_5(self):
             user=user, use_shakemap=True)
         self.assertIsNone(rup)
         self.assertEqual(dic['require_dip_strike'], True)
-        self.assertEqual(dic['rupture_issue'],
-                         'Unable to convert the rupture from the USGS format')
+        rupture_issue = ('Unable to convert the rupture from the USGS format: at'
+                         ' least one surface is not rectangular')
+        self.assertEqual(dic['rupture_issue'], rupture_issue)
 
     def test_6(self):
         _rup, dic, _err = get_rup_dic(