Hi @Muki Soomar Thanks for extending your help on this. I have created the custom processor to solve the above issue. But the answer for your question and the issue which I currently stuck with during HL7 message processing are posted in the link https://community.hortonworks.com/questions/226511/extracthl7attribute-processor-throws-error-cauhnhl.html. Please have a look on that and let me know your inputs on that. Thanks again.. ... View more

@Muki Soomar Thanks for the template it will help me during my implementation. But I am stuck with the first step that is listening for the message over ListenTCP Processor. In the template which you shared It has generate flow file which send HL7 message and it flow through PutTCP. This work for me. But instead of generate flow file I tried using different HL7 simulators. But I am not able to receive in ListenTCP Processor. Now I am in the process of creating a custom processor on top of ListenTCP which will receive the HL7 message and also send back the acknowledgement. ... View more

As I am new to Kafka I followed the steps for installing Kafka. Also tested Kafka using the Kafka Producer and Consumer bat file. As a next step instead of Kafka Consumer console, I used NiFi ConsumeKafka Processor as a Consumer. Whatever data I send from Kafka Producer console I am able to receive it in ConsumeKafka Processor which I tested by sending the data through PutFile Processor. So as per my understanding the Topic name mentioned in the Producer console application and the ConsumeKafka Processor matches the topic name. Hence the Processor is able to read the message from the stream. In my scenario I want to receive the HL7 message from a HL7simulator or through some asset which send the HL7 message to the configured IP:Port. I tried receiving HL7 message through ListenTCP or GetTCP with both of these Processor. But I am unable to receive the HL7 message in NiFi. So I tried to follow the steps mentioned here (I thought If I use consumeKafka I may able to receive the HL7 message). But here the problem is I don't have a configuration section where I can mention topic. I can only set the IP, Port and Message in the simulator app. Any help on receiving HL7 message into NiFi will be really helpful. Thanks.. ... View more