This evening I tested the success of my DeployCalibratorTool project, such as it is, from outside the firewall via my home wireless connection with SDC Internet.
Initially, when you visit the Calibrator Tool web site, nothing obvious happens. If you read the text on that page, however, you will be instructed to install the Sun Java Plug-In for your web browser. On Windows, this generally means the Sun Java Runtime Environment (JRE) 1.4.1 for Internet Explorer.
I followed the link on the Calibrator Tool page, which took me directly to Suns Java installation site. The installation process was automatic, and seemed to go very smoothly up until the very last bit, at which point I received this rather intimidating error message:
However, as the error message appeared, in the background screen there you see that the Java Cup logo with a congratulatory message was showing up. So I let the process continue before I clicked the OK button to dismiss the error dialog; nothing obvious resulted from this error.
Here you see Honglins Calibrator Tool in all its glory. In the upper-right corner we have the primary display, which is the first thing to appear. I entered some arbitrary values for RA and DEC and waited a bit for the database to respond.
In general, there is little indication that the system is doing anything while its waiting for responses from the database server.
Its best to open the Java Console, here shown in the upper-left corner, so you can get more-detailed indications of what the application is doing at any moment.
With the Windows Java Plug-In, you open the Java Console by clicking on the tiny Java Cup logo/icon that sits in the system tray area at the bottom-right corner of the computer screen. You see it in this screen shot as the second little icon to the right in the row of little icons at the bottom of the screen. I just double-clicked on that Java logo to open the Java Console, so I knew that the system was still working while I was waiting for a server response!
It is not clear to me why the system is slow here. The web server is no performance champ,but is only acting as a network proxy to the database server. The database server is a rather beefy SPARC Ultra workstation running Oracle, so I would expect nice performance there.
We are waiting 30-100 seconds for a response from the database server. I don't know why that should be!
Slow but working! I will try to determine the reason for the delay from the database server.