Questions as a developer

[my//▄︻┳一 → you← <13...@qq.com.INVALID>]

Dear friends: I am a java development engineer. Recently, my company needs Apache NIFI to help me with my work, but I can't find what I need to learn on the Internet. I think the official documents are very obscure. Let me illustrate my question with examples: I have a Demo.jar project, and the company needs to inherit Demo.jar into Apache NIFI and use it as a component. In other words, secondary development is carried out on the original use. Now that the source code and dependencies have been downloaded, how can we inherit jar into nar and use it as a component? Please let me know if there is a better url link. thank




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Re: Questions as a developer

[Lehel Boér <le...@hotmail.com>]

Dear my//�{���һ �� you��,

In case you'd like to create a custom Apache NiFi component you have to implement it as a nar and add it to NiFi's lib directory. I recommend starting off from an existing component or following any of the online tutorials on creating custom components.

Here's a short summary of a structured nar of a processor component:


nifi-{myBundle}-bundle

 ������ nifi-{myBundle}-processors

 ������ nifi-{myBundle}-processors-nar

nifi-{myBundle}-processors

This module contains the implementation of the Processor with all the necessary internal structures. This might include internal data representations, custom validators, etc.



The following requirements are set for the processor bundle:

  *   It must contain the Processor implementations with all necessary helper classes.

  *   Within the folder resources/META-INF/services it must contain the file named org.apache.nifi.processor.Processor, with the list of all the Processors published.

  *   It should use jar packaging.

  *   The nifi-api dependency must be provided. (As Processor implementations needs to be inherited from pre-defined interface or abstract class)

  *   It must depend on Service API and not the service implementation. The dependency should be provided. It will be contained by the relevant NAR.

nifi-{myBundle}-processors-nar

The module is responsible for creating the NAR packaging of the Processor JAR. Should not contain anything else then the POM descriptor! The following requirements are apply:

  *   The packaging must be nar.

  *   It must depend on the Processor module. (Not provided!)


A detailed example of a custom processor and controller service:
https://medium.com/hashmapinc/creating-custom-processors-and-controllers-in-apache-nifi-e14148740ea


Best Regards,
Lehel B
________________________________
From: my//�{���һ �� you�� <13...@qq.com.INVALID>
Sent: Thursday, April 13, 2023 9:58
To: dev <de...@nifi.apache.org>
Subject: Questions as a developer

Dear friends: I am a java development engineer. Recently, my company needs Apache NIFI to help me with my work, but I can't find what I need to learn on the Internet. I think the official documents are very obscure. Let me illustrate my question with examples: I have a Demo.jar project, and the company needs to inherit Demo.jar into Apache NIFI and use it as a component. In other words, secondary development is carried out on the original use. Now that the source code and dependencies have been downloaded, how can we inherit jar into nar and use it as a component? Please let me know if there is a better url link. thank




my//�{���һ&nbsp;&nbsp;��&nbsp;you��
1305382505@qq.com



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