[app][feat] check service enabled first

lib/ocr_step.py

@@ -351,16 +351,17 @@ def __init__(self, params: Dict):
         self.n_shorts = 0
         self.n_lines_out = 0
 
-    def is_available(self):
+    def enabled(self):
         """Connection established ?"""
-
         try:
             requests.head(self.service_url)
         except requests.ConnectionError:
             return False
         return True
 
     def execute(self):
+        if not self.enabled():
+            return
         xml_data = ET.parse(self.path_in)
         self.lines = get_lines(xml_data)
         if len(self.lines) > 0:

ocr_pipeline.py

@@ -401,7 +401,11 @@ def _execute_pipeline(*args):
             # log current step
             if hasattr(step, 'statistics') and len(step.statistics) > 0:
                 if profile_result and isinstance(step, StepEstimateOCR):
-                    outcome = (file_name,) + step.statistics
+                    _qa_step: StepEstimateOCR = step
+                    if not _qa_step.enabled():
+                        pipeline.logger.warning("[%s] %s configured but disabled",
+                                                file_name, _qa_step.__class__.__name__)
+                    outcome = (file_name,) + _qa_step.statistics
                 pipeline.logger.info("[%s] %s, statistics: %s",
                                       file_name, profile_result,
                                       str(step.statistics))

tests/test_steps.py

@@ -439,17 +439,22 @@ def test_step_estimateocr_empty_alto(empty_ocr):
 
 
 @mock.patch("requests.head")
-def test_service_down(mock_requests):
+def test_service_down(mock_head):
     """Determine Behavior when url not accessible"""
 
     # arrange
     params = {'service_url': 'http://localhost:8010/v2/check'}
     step = StepEstimateOCR(params)
-    mock_requests.side_effect = requests.ConnectionError
+    mock_head.side_effect = requests.ConnectionError
+
+    # act
+    step.execute()
 
     # assert
-    assert not step.is_available()
-    assert mock_requests.called == 1
+    assert mock_head.called == 1
+    assert not step.enabled()
+    assert step.hit_ratio == -1
+    assert step.statistics[0] == -1
 
 
 def test_step_estimateocr_textline_conversions():