Github user markap14 commented on a diff in the pull request:
https://github.com/apache/nifi/pull/1945#discussion_r124530604
--- Diff:
nifi-nar-bundles/nifi-mongodb-bundle/nifi-mongodb-processors/src/main/java/org/apache/nifi/processors/mongodb/PutMongoRecord.java
---
@@ -0,0 +1,139 @@
+
+/*
+ * 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 com.mongodb.WriteConcern;
+import com.mongodb.client.MongoCollection;
+import org.apache.nifi.annotation.behavior.EventDriven;
+import org.apache.nifi.annotation.behavior.InputRequirement;
+import org.apache.nifi.annotation.documentation.CapabilityDescription;
+import org.apache.nifi.annotation.documentation.Tags;
+import org.apache.nifi.components.PropertyDescriptor;
+import org.apache.nifi.flowfile.FlowFile;
+import org.apache.nifi.logging.ComponentLog;
+import org.apache.nifi.processor.ProcessContext;
+import org.apache.nifi.processor.ProcessSession;
+import org.apache.nifi.processor.Relationship;
+import org.apache.nifi.processor.exception.ProcessException;
+import org.apache.nifi.schema.access.SchemaNotFoundException;
+import org.apache.nifi.serialization.MalformedRecordException;
+import org.apache.nifi.serialization.RecordReader;
+import org.apache.nifi.serialization.RecordReaderFactory;
+import org.apache.nifi.serialization.record.Record;
+import org.apache.nifi.serialization.record.RecordSchema;
+import org.bson.Document;
+
+import java.io.IOException;
+import java.util.ArrayList;
+import java.util.Collections;
+import java.util.HashSet;
+import java.util.List;
+import java.util.Set;
+
+@EventDriven
+@Tags({"mongodb", "insert", "record", "put"})
+@InputRequirement(InputRequirement.Requirement.INPUT_REQUIRED)
+@CapabilityDescription("Bulk ingest documents into MonogDB using a
configured record reader.")
+public class PutMongoRecord extends AbstractMongoProcessor {
+ static final Relationship REL_SUCCESS = new
Relationship.Builder().name("success")
+ .description("All FlowFiles that are written to MongoDB are
routed to this relationship").build();
+ static final Relationship REL_FAILURE = new
Relationship.Builder().name("failure")
+ .description("All FlowFiles that cannot be written to MongoDB
are routed to this relationship").build();
+
+ static final PropertyDescriptor RECORD_READER_FACTORY = new
PropertyDescriptor.Builder()
+ .name("record-reader")
+ .displayName("Record Reader")
+ .description("Specifies the Controller Service to use for
parsing incoming data and determining the data's schema")
+ .identifiesControllerService(RecordReaderFactory.class)
+ .required(true)
+ .build();
+
+ private final static Set<Relationship> relationships;
+ private final static List<PropertyDescriptor> propertyDescriptors;
+
+ static {
+ List<PropertyDescriptor> _propertyDescriptors = new ArrayList<>();
+ _propertyDescriptors.addAll(descriptors);
+ _propertyDescriptors.add(WRITE_CONCERN);
+ _propertyDescriptors.add(RECORD_READER_FACTORY);
+ propertyDescriptors =
Collections.unmodifiableList(_propertyDescriptors);
+
+ final Set<Relationship> _relationships = new HashSet<>();
+ _relationships.add(REL_SUCCESS);
+ _relationships.add(REL_FAILURE);
+ relationships = Collections.unmodifiableSet(_relationships);
+ }
+
+ @Override
+ public Set<Relationship> getRelationships() {
+ return relationships;
+ }
+
+ @Override
+ public List<PropertyDescriptor> getSupportedPropertyDescriptors() {
+ return propertyDescriptors;
+ }
+
+ @Override
+ public void onTrigger(final ProcessContext context, final
ProcessSession session) throws ProcessException {
+ final FlowFile flowFile = session.get();
+ if (flowFile == null) {
+ return;
+ }
+
+ final RecordReaderFactory recordParserFactory =
context.getProperty(RECORD_READER_FACTORY)
+ .asControllerService(RecordReaderFactory.class);
+
+ List<Document> inserts = new ArrayList<>();
+ try {
+ RecordReader reader =
recordParserFactory.createRecordReader(flowFile, session.read(flowFile),
getLogger());
--- End diff --
We should create the Record Reader within a try-with-resources to ensure
that it is always closed, even if an Exception were to be thrown.
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