Tsunami Warning System

Welcome to the official repository of Tsunami Warning System.

Requirements

TWS mainly requires

Apache ActiveMQ

Apache ActiveMQ => 5.6.0 ActiveMQ is an open source Java JMS message queue. It supports the Stomp protocol, which ActiveMessaging uses to send and receive messages.

Get ActiveMQ

Download the installation files:

wget http://archive.apache.org/dist/activemq/apache-activemq/5.6.0/apache-activemq-5.6.0-bin.tar.gz

Extract the files:

tar xvf http://archive.apache.org/dist/activemq/apache-activemq/5.6.0/apache-activemq-5.6.0-bin.tar.gz

Configure ActiveMQ

Edit conf/activemq.xml and add the following connector, the port number 61613 is important:

<transportConnectors>
    <transportConnector name="stomp" uri="stomp://0.0.0.0:61613"/>
</transportConnectors>

Start ActiveMQ

./bin/activemq console

Node.JS

node.js => 0.10 Node.js is a platform built on Chrome's JavaScript runtime for easily building fast, scalable network applications. Node.js uses an event-driven, non-blocking I/O model that makes it lightweight and efficient, perfect for data-intensive real-time applications that run across distributed devices.

sudo apt-get install nodejs npm

Other Dependencies

Socket.io, stomp.js and configure For installing these dependencies we need to install Node.js package manager first.

sudo apt-get install npm

Get socket.io

Socket.IO aims to make realtime apps possible in every browser and mobile device, blurring the differences between the different transport mechanisms. It's care-free realtime 100% in JavaScript.

npm install socket.io

Get Stomp

STOMP provides an interoperable wire format so that STOMP clients can communicate with any STOMP message broker to provide easy and widespread messaging interoperability among many languages, platforms and brokers.

npm install stomp

Get Configure

A simple multiple-configuration management module By default the nodejs binary is created in /usr/bin upon installing node.js. The Configure will be installed using the command node install.js, what we need to is to create a symbolic link to /usr/bin/node from nodejs binary.

sudo ln -s /usr/bin/nodejs /usr/bin/node

npm install configure

Run the server.js

node server.js --config config.json

Run the sensor buoys program

node sensor-buoy.js <ALERT-TYPE> <BUOY-NAMES> --config config.json

ALERT-TYPES:

reg-alert : Regular Alert
low-alert : Low Alert
med-alert : Medium Alert
high-alert: High Alert

BUOY-NAMES:

buoy1
buoy2
buoy3

Deploy the Web Server

TWS comes along with a web service You could deploy it in either apache or nginix.

For the simplicity, I prefer, apache

Install Apache

sudo apt-get install apache2

Copy web-service to /var/www directory

cp -r web-server /var/www

Configure Apache

Change the DocumentRoot to /var/www/web-service in /etc/apache2/sites-available/000-default.conf file. Restart the apache to apply the changes

sudo service apache2 restart

You could now open your browser and see what's running on your localhost webserver http://localhost

soumajit / TsunamiWarningSystem

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