Human Computer Interaction » History » Revision 10
Revision 9 (Aleksander Bešir, 28.12.2010 13:29) → Revision 10/16 (Aleksander Bešir, 28.12.2010 13:42)
h1. Human Computer Interaction
{{toc}}
h2. 1 Basic concept
h3. 1.1 Hardware
p. The HCI will will be realised as a website. It will run on an Apache Tomcat http server, which will not run on the same device as Eneraptor's logic. Instead it will run on an independent proxy server.
p=. !HMI_website_overall.png!
p. The intended server-side html generating aplication is Tomcat's Jasper, making JSP the intended website programming language.
h3. 1.2 HCI features
The picture below shows basic HCI features:
!HCI_basic.png!
h2. 2 Communication with other parts
h3. Logged data (instructions for syslog dev)
All logged data has to be written in a *PostgreSQL* database. Database's name must be *eneraptor-db*. Data must be writen in *standard public schema* (default).
The database table will exist prior to logging unit's (Janez) first run, so logging unit does not need to create the table. The logging unit *must* know, how to add a log entry to the database correctly, so that HCI will be able to use this data:
Every new log entry should be added with the following SQL query:
<pre>
INSERT INTO logged_data(
id, "version", date_recieved, device_id, reported_data)
VALUES (nextval('hibernate_sequence'), 0, now(), 'enterDeviceIdHere', 'enterReportedDataHere');
</pre>
enterDeviceIdHere and enterReportedDataHere should be replaced with actual data. Logging unit *must not* change other parts of the SQL query above.
While developing the logging unit (Janez) it may be useful to have a test database like the one HCI will create in the final product. You can create such a database with the following SQL query:
[[createEneraptorDatabase.backup]]
h2. References
# Chopra, Vivek, et al., _Professional Apache Tomcat 6_, Wrox - Wiley, 2007
# Basham, Bryan, et al., _Head First Servlets and JSP™_, O’Reilly, 2008
h2. Attachments