Github user bbende commented on a diff in the pull request: https://github.com/apache/nifi/pull/2619#discussion_r193735509 --- Diff: nifi-nar-bundles/nifi-extension-utils/nifi-record-utils/nifi-avro-record-utils/src/main/java/org/apache/nifi/serialization/JsonInferenceSchemaRegistryService.java --- @@ -0,0 +1,77 @@ +/* + * Licensed to the Apache Software Foundation (ASF) under one or more + * contributor license agreements. See the NOTICE file distributed with + * this work for additional information regarding copyright ownership. + * The ASF licenses this file to You under the Apache License, Version 2.0 + * (the "License"); you may not use this file except in compliance with + * the License. You may obtain a copy of the License at + * + * http://www.apache.org/licenses/LICENSE-2.0 + * + * Unless required by applicable law or agreed to in writing, software + * distributed under the License is distributed on an "AS IS" BASIS, + * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. + * See the License for the specific language governing permissions and + * limitations under the License. + */ + +package org.apache.nifi.serialization; + +import org.apache.nifi.annotation.lifecycle.OnEnabled; +import org.apache.nifi.components.AllowableValue; +import org.apache.nifi.components.PropertyDescriptor; +import org.apache.nifi.controller.ConfigurationContext; +import org.apache.nifi.schema.access.JsonSchemaAccessStrategy; +import org.apache.nifi.schema.access.SchemaNotFoundException; +import org.apache.nifi.serialization.record.RecordSchema; + +import java.io.IOException; +import java.util.ArrayList; +import java.util.List; +import java.util.Map; + +import static org.apache.nifi.schema.access.SchemaAccessUtils.INFER_SCHEMA; +import static org.apache.nifi.schema.access.SchemaAccessUtils.SCHEMA_BRANCH_NAME; +import static org.apache.nifi.schema.access.SchemaAccessUtils.SCHEMA_NAME; +import static org.apache.nifi.schema.access.SchemaAccessUtils.SCHEMA_NAME_PROPERTY; +import static org.apache.nifi.schema.access.SchemaAccessUtils.SCHEMA_REGISTRY; +import static org.apache.nifi.schema.access.SchemaAccessUtils.SCHEMA_TEXT; +import static org.apache.nifi.schema.access.SchemaAccessUtils.SCHEMA_TEXT_PROPERTY; +import static org.apache.nifi.schema.access.SchemaAccessUtils.SCHEMA_VERSION; + +public class JsonInferenceSchemaRegistryService extends SchemaRegistryService { --- End diff -- I'm not totally sure about this, but I think if we take the approach mentioned in my other comments, we probably wouldn't need this class since the JSON readers would handle the logic for when schemaAccess is set to "JSON Inference", similar to how AvroReader handles when embedded schema is selected - https://github.com/apache/nifi/blob/master/nifi-nar-bundles/nifi-standard-services/nifi-record-serialization-services-bundle/nifi-record-serialization-services/src/main/java/org/apache/nifi/avro/AvroReader.java#L78
---