Skip to content
Snippets Groups Projects
Select Git revision
  • master default protected
1 result
user avatar
SARATHI.DEV added observer icon
kshatilov authored
b77e068b
History
user avatar b77e068b
History
Name Last commit Last update
app
gradle/wrapper
README.md
build.gradle
gradle.properties
settings.gradle
README.md

Sarathi

Experimental app for configuration of the traffic offloading.

Concept

Sarathi application connects to configuration channel using MQQT protocol. Configuration chanel provides settings, that could be simplified to the list of pairs <Application name, Proxy server parameters>. Each entry of this list is then represented as a tumbler which in theory should enable/disable traffic offloading for certain app (e.g. YouTube).

Additionally, Sarathi app provides service for sending traffic data and means to configure and observe this service.

Overview

Sarathi application provides three screens:

  1. Settings

    Allows to configure both configuration subscription channel and metadata publishing channel. Configuration includes server URI, client's ID and topic name.

  2. Applications List

    List of supported applications is converted to the list of tumblers each of which enables/disables traffic metadata sending for specific app.

  3. Observer

    Provides a log view for Sarathi service. Sarathi application observes all broadcasted events emitted by service each time it is being triggered.

Points of extension

As far as this application is supposed to be only a small part of traffic's metadata offloading ecosystem, it includes following points of integration:

  • Middle boxes protocol

    me/shatilov/symlab/sarathi/model/MiddleBoxModel.java

    This class supposed to be refactored in order to meet requirement and data format for configuration protocol. It will also require to adjust (de)serialization and displaying procedures.

  • Enabling/disabling metadata offloading

    me/shatilov/symlab/sarathi/adapters/AppListArrayAdapter.java:49

    This is the place where on/off event is observed. With full access to middle box configuration data, handler should call external app (which is in general should be a traffic interceptor for specific app).

  • Sarathi service interaction

    Setting screen provides an extensive configuration for traffic's metadata publishing mqqt connection. Ones "Reconnect" button is trigger newly entered settings are being applied to service configuration.

    me/shatilov/symlab/sarathi/activities/SarathiMainActivity.java:217

    Example of binding activity to the Sarathi Service.

    me/shatilov/symlab/sarathi/activities/SarathiMainActivity.java:201

    Example of triggering binded service.