Remove KeyError encountered on unknown attributes (#22600)

This removes the KeyError exception that is thrown when the Python cluster cache encounters an attribute that it doesn't have schema for. This occurs for some of the extended attributes in the test cluster that are not actually defined in schema. This ensures that we don't abruptly terminate attribute processing when running tests against the all clusters app.
project-chip · Sep 15, 2022 · c6cde56 · c6cde56
1 parent 283a40c
commit c6cde56
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Showing 2 changed files with 15 additions and 17 deletions.
diff --git a/src/controller/python/chip/clusters/Attribute.py b/src/controller/python/chip/clusters/Attribute.py
@@ -408,9 +408,14 @@ def UpdateCachedData(self):
             endpointCache = attributeCache[endpoint]
 
             for cluster in tlvCache[endpoint]:
+                if cluster not in _ClusterIndex:
+                    #
+                    # #22599 tracks dealing with unknown clusters more
+                    # gracefully so that clients can still access this data.
+                    #
+                    continue
+
                 clusterType = _ClusterIndex[cluster]
-                if (clusterType is None):
-                    raise Exception("Cannot find cluster in cluster index")
 
                 if (clusterType not in endpointCache):
                     endpointCache[clusterType] = {}
@@ -427,9 +432,6 @@ def UpdateCachedData(self):
                         endpointCache[clusterType].SetDataVersion(
                             clusterDataVersion)
                     except Exception as ex:
-                        logging.error(
-                            f"Error converting TLV to Cluster Object for path: Endpoint = {endpoint}, cluster = {str(clusterType)}")
-                        logging.error(f"|-- Exception: {repr(ex)}")
                         decodedValue = ValueDecodeFailure(
                             tlvCache[endpoint][cluster], ex)
                         endpointCache[clusterType] = decodedValue
@@ -438,27 +440,26 @@ def UpdateCachedData(self):
                     for attribute in tlvCache[endpoint][cluster]:
                         value = tlvCache[endpoint][cluster][attribute]
 
+                        if (cluster, attribute) not in _AttributeIndex:
+                            #
+                            # #22599 tracks dealing with unknown clusters more
+                            # gracefully so that clients can still access this data.
+                            #
+                            continue
+
                         attributeType = _AttributeIndex[(
                             cluster, attribute)][0]
-                        if (attributeType is None):
-                            raise Exception(
-                                "Cannot find attribute in attribute index")
 
                         if (attributeType not in clusterCache):
                             clusterCache[attributeType] = {}
 
                         if (type(value) is ValueDecodeFailure):
-                            logging.error(
-                                f"For path: Endpoint = {endpoint}, Attribute = {str(attributeType)}, got IM Error: {str(value.Reason)}")
                             clusterCache[attributeType] = value
                         else:
                             try:
                                 decodedValue = attributeType.FromTagDictOrRawValue(
                                     tlvCache[endpoint][cluster][attribute])
                             except Exception as ex:
-                                logging.error(
-                                    f"Error converting TLV to Cluster Object for path: Endpoint = {endpoint}, Attribute = {str(attributeType)}")
-                                logging.error(f"|-- Exception: {repr(ex)}")
                                 decodedValue = ValueDecodeFailure(value, ex)
 
                             clusterCache[attributeType] = decodedValue

diff --git a/src/controller/python/chip/clusters/attribute.cpp b/src/controller/python/chip/clusters/attribute.cpp
@@ -135,10 +135,7 @@ class ReadClientCallback : public ReadClient::Callback
         {
             version = aPath.mDataVersion.Value();
         }
-        else
-        {
-            ChipLogError(DataManagement, "expect aPath has valid mDataVersion");
-        }
+
         gOnReadAttributeDataCallback(mAppContext, version, aPath.mEndpointId, aPath.mClusterId, aPath.mAttributeId,
                                      to_underlying(aStatus.mStatus), buffer.get(), size);
     }