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https://issues.apache.org/jira/browse/NIFI-5059?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=16530014#comment-16530014
]
ASF GitHub Bot commented on NIFI-5059:
--------------------------------------
Github user mattyb149 commented on a diff in the pull request:
https://github.com/apache/nifi/pull/2619#discussion_r199518028
--- 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 +1,103 @@
+/*
+ * 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.components.PropertyValue;
+import org.apache.nifi.controller.ConfigurationContext;
+import org.apache.nifi.schema.access.AvroSchemaTextStrategy;
+import org.apache.nifi.schema.access.InferenceSchemaStrategy;
+import org.apache.nifi.schema.access.JsonSchemaAccessStrategy;
+import org.apache.nifi.schema.access.SchemaAccessStrategy;
+import org.apache.nifi.schema.access.SchemaNamePropertyStrategy;
+import org.apache.nifi.schema.access.SchemaNotFoundException;
+import org.apache.nifi.schemaregistry.services.SchemaRegistry;
+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 {
+ private String schemaAccess;
+
+ @OnEnabled
+ public void onEnabled(ConfigurationContext context) {
+ this.storeSchemaAccessStrategy(context);
+ this.schemaAccess =
context.getProperty(getSchemaAcessStrategyDescriptor()).getValue();
+ }
+
+ @Override
+ protected SchemaAccessStrategy getSchemaAccessStrategy(final String
strategy, final SchemaRegistry schemaRegistry, final ConfigurationContext
context) {
--- End diff --
Since this impl is specifically for JSON inference, perhaps it should
override getDefaultSchemaAccessStrategy() to return the Infer one?
> MongoDBLookupService should be able to determine a schema or have one provided
> ------------------------------------------------------------------------------
>
> Key: NIFI-5059
> URL: https://issues.apache.org/jira/browse/NIFI-5059
> Project: Apache NiFi
> Issue Type: Improvement
> Reporter: Mike Thomsen
> Assignee: Mike Thomsen
> Priority: Major
>
> MongoDBLookupService should have two schema handling modes:
> # Where a schema is provided as a configuration parameter to be applied to
> the Record object generated from the result document.
> # A schema will be generated by examining the result object and building one
> that roughly translates from BSON into the Record API.
> In both cases, the schema will be applied to the Mongo result Document object
> that is returned if one comes back.
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