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https://issues.apache.org/jira/browse/NIFI-4853?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=16356885#comment-16356885
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ASF GitHub Bot commented on NIFI-4853:
--------------------------------------
Github user MikeThomsen commented on a diff in the pull request:
https://github.com/apache/nifi/pull/2457#discussion_r166917607
--- Diff:
nifi-nar-bundles/nifi-mongodb-bundle/nifi-mongodb-processors/src/test/java/org/apache/nifi/processors/mongodb/PutMongoRecordTest.java
---
@@ -0,0 +1,186 @@
+/*
+ * 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.processors.mongodb;
+
+
+import org.apache.nifi.components.ValidationResult;
+import org.apache.nifi.processor.ProcessContext;
+import org.apache.nifi.serialization.SimpleRecordSchema;
+import org.apache.nifi.serialization.record.MapRecord;
+import org.apache.nifi.serialization.record.MockRecordParser;
+import org.apache.nifi.serialization.record.RecordField;
+import org.apache.nifi.serialization.record.RecordFieldType;
+import org.apache.nifi.serialization.record.RecordSchema;
+import org.apache.nifi.util.MockFlowFile;
+import org.apache.nifi.util.MockProcessContext;
+import org.apache.nifi.util.TestRunner;
+import org.apache.nifi.util.TestRunners;
+import org.bson.Document;
+import org.junit.After;
+import org.junit.Assert;
+import org.junit.Before;
+import org.junit.Test;
+
+import java.nio.charset.StandardCharsets;
+import java.util.ArrayList;
+import java.util.Collection;
+import java.util.HashMap;
+import java.util.HashSet;
+import java.util.Iterator;
+import java.util.List;
+
+import static org.junit.Assert.assertEquals;
+
+public class PutMongoRecordTest extends MongoWriteTestBase {
--- End diff --
Make sure to put an @Ignore here before merging since these are integration
tests.
> PutMongoRecord doesn't handle nested records
> --------------------------------------------
>
> Key: NIFI-4853
> URL: https://issues.apache.org/jira/browse/NIFI-4853
> Project: Apache NiFi
> Issue Type: Bug
> Components: Extensions
> Reporter: Matt Burgess
> Assignee: Matt Burgess
> Priority: Major
>
> PutMongoRecord works well with flat records, but when attempting to put in
> nested records (records whose fields are arrays or records themselves), the
> Mongo serializer doesn't know how to handle the complex NiFi record field
> types (such as MapRecord).
> The fix is to traverse all fields in the record, transforming the fields (if
> necessary) to Java objects for use by the Mongo serializer(s). Something very
> similar was done for PutDruidRecord, and in fact there is a utility method
> DataTypeUtils.convertRecordFieldtoObject() that can perform this task.
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