greyp9 commented on code in PR #8463: URL: https://github.com/apache/nifi/pull/8463#discussion_r1538322756
########## nifi-nar-bundles/nifi-kafka-bundle/nifi-kafka-processors/src/main/java/org/apache/nifi/kafka/processors/ConsumeKafka.java: ########## @@ -0,0 +1,464 @@ +/* + * 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.kafka.processors; + +import org.apache.nifi.annotation.behavior.InputRequirement; +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.ConfigVerificationResult; +import org.apache.nifi.components.PropertyDescriptor; +import org.apache.nifi.components.PropertyValue; +import org.apache.nifi.components.Validator; +import org.apache.nifi.expression.ExpressionLanguageScope; +import org.apache.nifi.kafka.processors.common.KafkaUtils; +import org.apache.nifi.kafka.processors.consumer.OffsetTracker; +import org.apache.nifi.kafka.processors.consumer.ProcessingStrategy; +import org.apache.nifi.kafka.processors.consumer.bundle.ByteRecordBundler; +import org.apache.nifi.kafka.processors.consumer.convert.FlowFileStreamKafkaMessageConverter; +import org.apache.nifi.kafka.processors.consumer.convert.KafkaMessageConverter; +import org.apache.nifi.kafka.processors.consumer.convert.RecordStreamKafkaMessageConverter; +import org.apache.nifi.kafka.processors.consumer.convert.WrapperRecordStreamKafkaMessageConverter; +import org.apache.nifi.kafka.service.api.KafkaConnectionService; +import org.apache.nifi.kafka.service.api.common.PartitionState; +import org.apache.nifi.kafka.service.api.consumer.AutoOffsetReset; +import org.apache.nifi.kafka.service.api.consumer.ConsumerConfiguration; +import org.apache.nifi.kafka.service.api.consumer.KafkaConsumerService; +import org.apache.nifi.kafka.service.api.consumer.PollingContext; +import org.apache.nifi.kafka.service.api.record.ByteRecord; +import org.apache.nifi.kafka.shared.attribute.KafkaFlowFileAttribute; +import org.apache.nifi.kafka.shared.property.KeyEncoding; +import org.apache.nifi.kafka.shared.property.KeyFormat; +import org.apache.nifi.kafka.shared.property.OutputStrategy; +import org.apache.nifi.logging.ComponentLog; +import org.apache.nifi.processor.AbstractProcessor; +import org.apache.nifi.processor.ProcessContext; +import org.apache.nifi.processor.ProcessSession; +import org.apache.nifi.processor.Relationship; +import org.apache.nifi.processor.VerifiableProcessor; +import org.apache.nifi.processor.exception.ProcessException; +import org.apache.nifi.processor.util.StandardValidators; +import org.apache.nifi.serialization.RecordReaderFactory; +import org.apache.nifi.serialization.RecordSetWriterFactory; +import org.apache.nifi.util.StringUtils; + +import java.nio.charset.Charset; +import java.nio.charset.StandardCharsets; +import java.time.Duration; +import java.util.ArrayList; +import java.util.Collection; +import java.util.Collections; +import java.util.Iterator; +import java.util.List; +import java.util.Map; +import java.util.Set; +import java.util.regex.Pattern; + +import static org.apache.nifi.expression.ExpressionLanguageScope.NONE; + +@InputRequirement(InputRequirement.Requirement.INPUT_FORBIDDEN) +@Tags({"kafka", "consumer", "record"}) +public class ConsumeKafka extends AbstractProcessor implements VerifiableProcessor { + + static final AllowableValue TOPIC_NAME = new AllowableValue("names", "names", "Topic is a full topic name or comma separated list of names"); + static final AllowableValue TOPIC_PATTERN = new AllowableValue("pattern", "pattern", "Topic is a regex using the Java Pattern syntax"); + + static final PropertyDescriptor CONNECTION_SERVICE = new PropertyDescriptor.Builder() + .name("Kafka Connection Service") + .displayName("Kafka Connection Service") + .description("Provides connections to Kafka Broker for publishing Kafka Records") + .identifiesControllerService(KafkaConnectionService.class) + .expressionLanguageSupported(NONE) + .required(true) + .build(); + + static final PropertyDescriptor GROUP_ID = new PropertyDescriptor.Builder() + .name("Group ID") Review Comment: I'll work on a list of these, where we can reach consensus as a coherent set, rather than one at a time. -- This is an automated message from the Apache Git Service. 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