EasyHarvest

EasyHarvest aims to simplify the deployment and controlled execution of large-scale sensing applications on smartphones. On the one hand, application owners submit to a server sensing tasks for distribution on smartphones, and collect the data produced by them in a simple manner. On the other hand, smartphone owners control the execution of sensing tasks on their devices through a single interface, without having to repeatedly download, install and configure individual sensing applications. The interaction between the smartphone and the server occurs in a transparent way, with tolerance to intermittent connectivity and support for disconnected operation.

For more information read here (slightly outdated) and here.

Initial Setup

Database

CREATE DATABASE server;

USE server;

CREATE TABLE users(
  username TEXT,
  password TEXT,
  email    TEXT
);

CREATE TABLE tasks(
  id         NUMERIC,
  filename   TEXT,
  username   TEXT,
  ready      TEXT,
  downloaded NUMERIC
);

CREATE TABLE devices(
  id        INT NOT NULL AUTO_INCREMENT PRIMARY KEY,
  username  TEXT,
  model     TEXT,
  os        TEXT,
  reg_date  TEXT,
  reg_time  TEXT,
  last_date TEXT,
  last_time TEXT
);

CREATE TABLE pms(
  id       NUMERIC,
  filename TEXT,
  username TEXT,
  sensing  NUMERIC,
  ready    TEXT
);

Paths and Variables

com.www​.server > Globals.java

Parameter	Value
db_dir	This is where user data and files are saved. Simply create a folder and enter its path.
db_server	The address of the MySQL database (“jdbc:mysql://localhost:port/server”).
db_username	The username of the MySQL database we previously created.
db_password	The password of the MySQL database user.
server_irl	The localhost url with the apache port and the application name (Server).
lib_url	The location of the android.jar library file (e.g. “…/Android/sdk/platforms/android-X/android.jar”).
console_cmd	The console application (e.g. for Windows it is “cmd”).
javac_cmd	The location of the javac binary.
dx_cmd	The location of the android dx tool (e.g. “…/Android/sdk/build-tools/X/lib/dx”).
zip_cmd	Preferred compressing application.
zip_args	Zip command arguments (if any).

Start the Server

When the Server starts, to check if everything is OK, run from your browser the URL:

http://localhost:port/Server/webresources/tasks

The above URL should show the message “TaskService is ready.”

To start using the EasyHarvest Server, simply create an account by signing up.