Implementing metadata model for supporting edge nodes and visualization

[n-jay]

Purpose

Resolving issue of IoT Server not being able to understand multi-layered arrangements of edge devices

Goals

Adds ability for the IoT Server to support multi-layered edge nodes in a deployment.

Approach

Added a parent/child table to hold the device organization metadata. Added a UI component to display device organizational arrangement.

User stories

As a User I can view the organizational structure of my edge devices in a clear visualization.

Release note

Implementation of metadata model for supporting edge nodes and its visualization.

Documentation

N/A

Training

N/A

Certification

N/A

Marketing

N/A

Automation tests

• Unit tests

  Unit tests written for Device Organization DAO operations

• Integration tests

  N/A

Security checks

• Followed secure coding standards in http://wso2.com/technical-reports/wso2-secure-engineering-guidelines? yes
• Ran FindSecurityBugs plugin and verified report? yes
• Confirmed that this PR doesn't commit any keys, passwords, tokens, usernames, or other secrets? yes

Samples

N/A

Related PRs

N/A

Migrations (if applicable)

N/A

Test environment

JDK version: java 1.8.0_141 Operating System: Linux Ubuntu Databases: H2 Browser version: Google Chrome 63, Mozilla FIrefox 57

Learning

Blog posts: https://medium.com/@nuwanjaya/visualizing-the-internet-of-things-the-design-3cc2d22d16f6 Libraries used: For visualization - http://visjs.org/