ChrisSamo632 commented on a change in pull request #4822:
URL: https://github.com/apache/nifi/pull/4822#discussion_r627455807



##########
File path: 
nifi-nar-bundles/nifi-aws-bundle/nifi-aws-processors/src/main/java/org/apache/nifi/processors/aws/kinesis/stream/ConsumeKinesisStream.java
##########
@@ -0,0 +1,678 @@
+/*
+ * 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.aws.kinesis.stream;
+
+import com.amazonaws.auth.AWSCredentialsProvider;
+import com.amazonaws.auth.AWSStaticCredentialsProvider;
+import com.amazonaws.auth.AnonymousAWSCredentials;
+import 
com.amazonaws.services.kinesis.clientlibrary.interfaces.v2.IRecordProcessorFactory;
+import 
com.amazonaws.services.kinesis.clientlibrary.lib.worker.InitialPositionInStream;
+import 
com.amazonaws.services.kinesis.clientlibrary.lib.worker.KinesisClientLibConfiguration;
+import com.amazonaws.services.kinesis.clientlibrary.lib.worker.Worker;
+import com.amazonaws.services.kinesis.metrics.impl.NullMetricsFactory;
+import org.apache.commons.beanutils.BeanUtilsBean;
+import org.apache.commons.beanutils.ConvertUtilsBean2;
+import org.apache.commons.beanutils.FluentPropertyBeanIntrospector;
+import org.apache.commons.beanutils.PropertyUtilsBean;
+import org.apache.commons.lang3.StringUtils;
+import org.apache.nifi.annotation.behavior.DynamicProperties;
+import org.apache.nifi.annotation.behavior.DynamicProperty;
+import org.apache.nifi.annotation.behavior.InputRequirement;
+import org.apache.nifi.annotation.behavior.SystemResource;
+import org.apache.nifi.annotation.behavior.SystemResourceConsideration;
+import org.apache.nifi.annotation.behavior.WritesAttribute;
+import org.apache.nifi.annotation.behavior.WritesAttributes;
+import org.apache.nifi.annotation.documentation.CapabilityDescription;
+import org.apache.nifi.annotation.documentation.SeeAlso;
+import org.apache.nifi.annotation.documentation.Tags;
+import org.apache.nifi.annotation.lifecycle.OnScheduled;
+import org.apache.nifi.annotation.lifecycle.OnStopped;
+import org.apache.nifi.components.AllowableValue;
+import org.apache.nifi.components.PropertyDescriptor;
+import org.apache.nifi.components.ValidationContext;
+import org.apache.nifi.components.ValidationResult;
+import org.apache.nifi.controller.ControllerService;
+import org.apache.nifi.expression.ExpressionLanguageScope;
+import org.apache.nifi.processor.ProcessContext;
+import org.apache.nifi.processor.ProcessSession;
+import org.apache.nifi.processor.ProcessSessionFactory;
+import org.apache.nifi.processor.Relationship;
+import org.apache.nifi.processor.exception.ProcessException;
+import org.apache.nifi.processor.util.StandardValidators;
+import 
org.apache.nifi.processors.aws.kinesis.stream.record.AbstractKinesisRecordProcessor;
+import 
org.apache.nifi.processors.aws.kinesis.stream.record.KinesisRecordProcessorRaw;
+import 
org.apache.nifi.processors.aws.kinesis.stream.record.KinesisRecordProcessorRecord;
+import org.apache.nifi.serialization.RecordReaderFactory;
+import org.apache.nifi.serialization.RecordSetWriterFactory;
+import org.apache.nifi.serialization.record.RecordFieldType;
+
+import java.lang.reflect.InvocationTargetException;
+import java.net.InetAddress;
+import java.net.UnknownHostException;
+import java.time.LocalDateTime;
+import java.time.ZoneOffset;
+import java.time.format.DateTimeFormatter;
+import java.util.Arrays;
+import java.util.Collection;
+import java.util.Collections;
+import java.util.Date;
+import java.util.HashMap;
+import java.util.HashSet;
+import java.util.List;
+import java.util.Map;
+import java.util.Optional;
+import java.util.Set;
+import java.util.UUID;
+import java.util.concurrent.ExecutionException;
+import java.util.concurrent.Future;
+import java.util.concurrent.TimeUnit;
+import java.util.concurrent.TimeoutException;
+import java.util.concurrent.atomic.AtomicBoolean;
+import java.util.stream.Collectors;
+
+@InputRequirement(InputRequirement.Requirement.INPUT_FORBIDDEN)
+@Tags({"amazon", "aws", "kinesis", "get", "stream"})
+@CapabilityDescription("Reads data from the specified AWS Kinesis stream and 
outputs a FlowFile for every processed Record (raw) " +
+        " or a FlowFile for a batch of processed records if a Record Reader 
and Record Writer are configured. " +
+        "At-least-once delivery of all Kinesis Records within the Stream while 
the processor is running. " +
+        "AWS Kinesis Client Library can take several seconds to initialise 
before starting to fetch data. " +
+        "Uses DynamoDB for check pointing and CloudWatch (optional) for 
metrics. " +
+        "Ensure that the credentials provided have access to DynamoDB and 
CloudWatch (if used) along with Kinesis.")
+@WritesAttributes({
+        @WritesAttribute(attribute = 
AbstractKinesisRecordProcessor.AWS_KINESIS_PARTITION_KEY,
+                description = "Partition key of the (last) Kinesis Record read 
from the Shard"),
+        @WritesAttribute(attribute = 
AbstractKinesisRecordProcessor.AWS_KINESIS_SHARD_ID,
+                description = "Shard ID from which the Kinesis Record was 
read"),
+        @WritesAttribute(attribute = 
AbstractKinesisRecordProcessor.AWS_KINESIS_SEQUENCE_NUMBER,
+                description = "The unique identifier of the (last) Kinesis 
Record within its Shard"),
+        @WritesAttribute(attribute = 
AbstractKinesisRecordProcessor.AWS_KINESIS_APPROXIMATE_ARRIVAL_TIMESTAMP,
+                description = "Approximate arrival timestamp of the (last) 
Kinesis Record read from the stream"),
+        @WritesAttribute(attribute = "mime.type",
+                description = "Sets the mime.type attribute to the MIME Type 
specified by the Record Writer (if configured)"),
+        @WritesAttribute(attribute = "record.count",
+                description = "Number of records written to the FlowFiles by 
the Record Writer (if configured)"),
+        @WritesAttribute(attribute = "record.error.message",
+                description = "This attribute provides on failure the error 
message encountered by the Record Reader or Record Writer (if configured)")
+})
+@DynamicProperties({
+        @DynamicProperty(name="Kinesis Client Library (KCL) Configuration 
property name",
+                description="Override default KCL Configuration properties 
with required values. Supports setting of values via the \"with\" " +
+                        "methods on the KCL Configuration class. Specify the 
property to be set without the leading prefix, e.g. 
\"maxInitialisationAttempts\" " +
+                        "will call \"withMaxInitialisationAttempts\" and set 
the provided value. Only supports setting of simple property values, e.g. 
String, " +
+                        "int, long and boolean. Does not allow override of KCL 
Configuration settings handled by non-dynamic processor properties.",
+                expressionLanguageScope = ExpressionLanguageScope.NONE, 
value="Value to set in the KCL Configuration property")
+})
+@SystemResourceConsideration(resource = SystemResource.CPU, description = 
"Kinesis Client Library is used to create a Worker thread for consumption of 
Kinesis Records. " +
+        "The Worker is initialised and started when this Processor has been 
triggered. It runs continually, spawning Kinesis Record Processors as required 
" +
+        "to fetch Kinesis Records. The Worker Thread (and any child Record 
Processor threads) are not controlled by the normal NiFi scheduler as part of 
the " +
+        "Concurrent Thread pool are are not released until this processor is 
stopped.")

Review comment:
       D'oh




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