Data Converter

Name	Data Converter
Version	v1.0.3
DockerHub	data-converter
Authors	Ghassen Barbouchi

---

Table of Content

• Data Converter
  • Table of Content
  • Description
    • Features
  • Module Variables
    • Module Specific
    • Set by the weeve Agent on the edge-node
  • Dependencies
  • Input
  • Output

---

Description

The function of this module is to convert the selected input of the previous module to another type. Available options are hex string, int, ieee754 float, text, and data can be converted from and to those types.

Features

1. Detect the value to convert from the incoming JSON data.
2. Validate the selected from type.
3. Convert the detected value from selected input Type to selected out Type.
4. Forward the new converted JSON to the next module.

Module Variables

Module Specific

Environment Variables	type	Description
INPUT_KEY	string	Input Key eg "Device.pc.price"
FROM_TYPE	string	Input type
TO_TYPE	string	Output type

Set by the weeve Agent on the edge-node

There are 5 module variables that are required by each module to correctly function within weeve ecosystem. In development, these variables can overridden for testing purposes. In production, these variables are set by weeve Agent.

Environment Variables	type	Description
MODULE_NAME	string	Name of the module
MODULE_TYPE	string	Type of the module (Input, Processing, Output)
LOG_LEVEL	string	Allowed log levels: DEBUG, INFO, WARNING, ERROR, CRITICAL. Refer to logging package documentation.
INGRESS_HOST	string	Host to which data will be received
INGRESS_PORT	string	Port to which data will be received
EGRESS_URLS	string	HTTP ReST endpoint for the next module

Dependencies

The following are module dependencies:

• bottle
• requests

The following are developer dependencies:

• pytest
• flake8
• black

Input

Input example:

{
"manufacturer" : "weeve",
"device" :{
"SN" : "1232",
"newobj":{
      "a":12,
      "b":"0xFD"
},
"year" : 2021
}
}

Output

output example in case the input key is : "device.newobj.b" , the fromType :"hex" and the toType :"int"

{
"manufacturer" : "weeve",
"device" :{
"SN" : "1232",
"newobj":{
      "a":12,
      "b":253
},
"year" : 2021
}
}