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helenos

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Helenos is a free web based environment that simplifies a data exploring & schema managament with Apache Cassandra database.

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## Helenos

### Introduction

Helenos is a free web based environment that simplifies a data exploring & schema managament with Apache Cassandra database.

### Features list

* Exploring schema 
* Viewing properties of keyspaces and column families
* Add / remove / truncate column family
* Add / Drop keyspace
* Data browsing via:
    * keyRange
    * predicate
* Results pagination
* CQL support
* Authentication
* Admin and read only roles

### Current version

1.5

> **Important:** when upgrading to version 1.5 or above please note that you'll lose all your configuration (stored in local sql db). Please read changelog...

### Changelog

See [here](https://github.com/tomekkup/helenos/wiki/Changelog) for all changes in current and all previous releases

### Download

Packages are available to download via [Sourceforge.net](https://sourceforge.net/projects/helenos-gui/files/) as WAR files and Apache Tomcat bundles.

### Gallery

[![CF properties] (https://raw.github.com/tomekkup/helenos/gh-pages/gallery/helenos1_small.png)](https://raw.github.com/tomekkup/helenos/gh-pages/gallery/helenos1.png)  [![CQL] (https://raw.github.com/tomekkup/helenos/gh-pages/gallery/helenos2_small.png)](https://raw.github.com/tomekkup/helenos/gh-pages/gallery/helenos2.png)  [![Browse] (https://raw.github.com/tomekkup/helenos/gh-pages/gallery/helenos3_small.png)](https://raw.github.com/tomekkup/helenos/gh-pages/gallery/helenos3.png)

Click here for [preview on Youtube](http://www.youtube.com/watch?v=gOWHN6bCybQ&hd=1&autoplay=1)

### Installation

* Make sure that a user account which your application server runs as, has write permission to home directory
* Download war package and deploy to your servlet container (tested with Jetty 8, Tomcat 6, Resin 4)
* When running on Resin, additionally make sure that fileServlet is enabled and configured (see web.xml or Resin manual)
* Start app
* Make sure your web browser supports Flash 10
* Open your web browser to http://localhost:8080/{yourdeploypath}/index.html
* Sign in with your credentials (default is admin:admin) 
* Edit your connections by clicking icon in upper right corner
* After editing click button 'Connect to'

### Building manually

You can build manually with Maven but first install all prerequisities:

* Qooxdoo SDK 2.1.2 [download] (http://sourceforge.net/projects/qooxdoo/)
* Python 2.x [download] (http://www.python.org/downloads/)

Next download this archive: [https://github.com/cboulanger/qx-contrib-Dialog/archive/v1.2.zip] (https://github.com/cboulanger/qx-contrib-Dialog/archive/v1.2.zip)
and unpack to directory src/main/frontend/contribs and change destination folder name to 'dialog'. Next apply patch file 'src/main/frontent/Login.js.patch'.

### Wish list

* Browse with indexed columns
* Results export to file
* Manually setting serializers
* Persisting default filter criteria to reuse at anytime
* JMX monitor
* Schema editing
* Queries log

### FAQ

* I see a cluster structure in a left pane but how to do anything more !? - Use the force Luke ...I mean right mouse button
 * My Cassandra instance is not listening on localhost:9160. How to change the CassandraHost after installation ? - put your values into defaults.properties file, then restart

### Author

My name is Tomek Kuprowski and I'm java enthusiast, father, husband and IBMer.
You can find me on [LinkedIn] (http://www.linkedin.com/in/tomekkuprowski) and contact via tomekkuprowski@gmail.com

### Licence and disclaimer

Helenos is distributed free, AS-IS, without any warranty under GPL v2 [licence] (http://www.gnu.org/licences/gpl.html)

helenos

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