Oracles OLTP numbers vs. Clean Speak

Oracle is hosting a webinar today covering the awesome performance of their Exadata system. Sure Oracle’s OLTP tests probably do slightly more than Clean Speak does, but 1,870 transactions in 2 minutes hardly seems like something to rave about. The Clean Speak profanity filter handles between 5,000 and 10,000 messages per second. The profanity filter […]

Escaping JSON in FreeMaker

The ?js_string doesn’t work quite right for JSON since it ends up escaping single-quotes. This isn’t quite right for JSON since it only allows Strings to be specified using double-quotes. Therefore, in order to properly escape Strings in FreeMarker for JSON, you need to write a custom method and add it to the model. Here’s […]

Friendster can't even send email

I’m surprised that Friendster is even still around, but today I got an email from their CEO and it had the entire MIME body in the message. These guys can’t even figure out how to send email. X-Campaign-ID: 8002 X-Campaign-Type: 1 X-Message-Ref: 19lGRwmaJkSjEf8FZP7XSCijJOJhOejGu832ySW13bA* Content-Type: multipart/alternative; boundary=”—-_=_FSter_001_3251309519900466″ MIME-Version: 1.0 This is a MIME email, the first […]

JDBC Batch vs. Multi-Row Inserts

I recently had a requirement to insert a few hudred rows into a relational database ever couple of seconds. Generally this could be accomplished during the request, but I didn’t want to introduce issues if there were spikes. Therefore, I figured I would cache the data and then write it out in a background thread […]

iMac vs. build-your-own

I’ve been meaning to do this comparison for a while now, but this morning I decided to just jump in and do it. A lot of people are constantly complaining about how expensive Macs are and I’ve long held the notion that they are quite reasonably priced. Here’s my break down: CPU (i7 2600K 3.4GHz […]

Java Road Trip – Where have all our heroes gone?

I got an email from Oracle about the Java Road Trip. Looking over the website I wasn’t immediately excited to attend the event here in Denver. But even more than that, I looked at the profiles for the speakers and the staff and all I can say is, “Where have all our heroes gone?” I […]

Parsing JSON via ScriptEngine in the JDK

I’m writing some REST WebServices that return JSON and wanted to ensure that my JSON was correctly formatted and parsable. Since the JDK ships with a JavaScript engine built into it now, I figured it would be simplest to just use that and avoid any external dependencies. Here’s my code: ScriptEngine se = new ScriptEngineManager().getEngineByExtension(“js”); […]