killrtaxi

This is a Web demo application using Patrick Callaghan DataStax/Cassandra demo API found here https://github.com/PatrickCallaghan/datastax-taxi-app

As Patrick says "This demo traces moving vehicles as they pass through geohash tiles. It also keeps track of a vehicle movements on a day to day basis. Similar to a vessel tracking or taxi application."

This Web application use Python Flask Web framework and Flask-GoogleMap extension.

Installation

• Install the Python Flask framework

  Full instructions for Virtualenv here http://flask.pocoo.org/docs/0.10/installation/#installation or just run

  pip install flask
  

• Install Flask-GoogleMap extension

  All details here https://github.com/rochacbruno/Flask-GoogleMaps but simple to install it run

  pip install flask-googlemaps
  

• Install Python modules

  Download and unzip Geohash from https://github.com/vinsci/geohash or from https://pypi.python.org/pypi/Geohash/ and run

  python ./setup.py install
  

  Install requests http://docs.python-requests.org/en/latest/user/install/

  pip install requests
  

• Install DataStax Enterprise with Apache Solr activated

  Free download here https://academy.datastax.com/downloads

  Installation documentation here http://docs.datastax.com/en/datastax_enterprise/4.8/datastax_enterprise/install/installTOC.html

• Install and setup Patrick API

  Get source code and instructions from my fork https://github.com/victorcouste/datastax-taxi-app

  Create CQL schemas and Solr core as explained.

• Install the killrtaxi Web app

  Clone this repo

  git clone https://github.com/victorcouste/killrtaxi.git
  

Running

1/ Start DataStax Enterprise with Search activated

Documentation here http://docs.datastax.com/en/datastax_enterprise/4.8/datastax_enterprise/srch/srchInstall.html

2/ Start datastax-taxi-app API

To continuously update the locations of the vehicles run

mvn clean compile exec:java -Dexec.mainClass="com.datastax.taxi.Main" -DcontactPoints=localhost

To start the API web server, in another terminal run

mvn jetty:run

To test your installation and run,for example find all movements of a vehicle use http://localhost:8080/datastax-taxi-app/rest/getmovements/{vehicle}/{date} e.g.

http://localhost:8080/datastax-taxi-app/rest/getmovements/1/20160112

Or

select * from vehicle where vehicle = '1' and day='20160112';

3/ Start the Flask Web app

In the killrtaxi directory run

python killrtaxi.py

Now you must be able to go to http://127.0.0.1:5000/ and play with the application