> For the complete documentation index, see [llms.txt](https://lern.sunbird.org/llms.txt). Markdown versions of documentation pages are available by appending `.md` to page URLs; this page is available as [Markdown](https://lern.sunbird.org/use/developer-guide/ml-service/data-pipeline-flink-jobs/program-flink-job/folder-structure.md).

# Folder Structure

Program User Info Service folder structure is designed to organize the different modules and files that constitute the program user info flink job. It follows a modular approach, facilitating easy management and development of the service.

### The structure is as follows

```
.  
│
└── ml-jobs
    ├── pom.xml
    └── program-user-info
        ├── pom.xml
        └── src
            ├── main
            │   ├── resources
            │   │   └── program-user-info.conf
            │   └── scala
            │       └── org
            │           └── sunbird
            │               └── dp
            │                   └── userinfo
            │                       ├── domain
            │                       │   └── Event.scala
            │                       ├── functions
            │                       │   └── ProgramUserInfoFunction.scala
            │                       ├── task
            │                       │   ├── ProgramUserInfoConfig.scala
            │                       │   └── ProgramUserInfoStreamTask.scala
            │                       └── util
            │                           └── Commons.scala
            └── test
                ├── resources
                │   ├── test.conf
                │   └── test.cql
                └── scala
                    └── org
                        └── sunbird
                            └── dp
                                ├── fixture
                                │   └── EventFixture.scala
                                └── spec
                                    └── ProgramUserInfoTaskTestSpec.scala
       
    
```

**ml-jobs** 

This is the main directory that contains one Flink job called program-user-info.

**program-user-info**

This folder contains all the required directory for actual implementation of logics. 

**resources \[main]**

This folder contains application related configurations in a file called *program-user-info.conf*

**domain**

This directory contains a file called *Even.scala* which is used to declare methods to get specific keys out of JSON.

**functions**

This folder contains the file *ProgramUserInfoFunction.scala* which helps in processing and flattening the JSON into one-level key-value pairs. This file also contains the logic to store the flattened data into Cassandra database.

**task**

This folder contains a file called *ProgramUserInfoStreamTask.scala* which is an entry point for this service. and another file called *ProgramUserInfoConfig.scala* which holds the variable constants.

**resources \[test]**

This folder contains test related configurations values in a file called *test.conf*. Also contains *test.cql* file which holds the Cassandra query to create keyspace for the testing purpose. 

**fixture**

This directory contains a hard coded kafka events for the testing purpose.

**spec**

In the spec folder we have the main test case file called *ProgramUserInfoTaskTestSpec.scala* that is used to test our stream processing task.

### **Source code**

{% embed url="<https://github.com/Sunbird-Lern/data-pipeline/tree/release-5.3.0/ml-jobs/program-user-info>" %}


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