At work we’ve been having some discussions about sharing content between two websites: the natural first option was an XML solution, in this case RSS. Site A would subscribe to the RSS feeds of the site B, periodically retrieving the updated feeds, caching the contents of each feed for a specified period of [...]
A couple of weeks ago on the DWR users list, in the context of needing to wire up DWR without using an XML file, Joe Walker pointed to a blog posting by Martin Fowler. In it, Martin discusses an interface style called a ‘fluent interface’. It’s a little difficult to describe in words (so check [...]
For the last couple weeks I’ve been working on the ‘Deep, Real-time Reporting’ features of Wildfire Enterprise, which officially launched today (if you’ve ever thought about messing around with instant messaging / XMPP / Jabber, I’d highly recommend checking it out and that’s the last corporate pitch you’ll hear out of me). Herewith (as [...]
If you’re one of the 3 people in the world that need to create a transparent PNG image using JFreeChart, you’ve come to the right place:
JFreeChart chart = ChartFactory.createXYBarChart(…);
chart.setBackgroundPaint(new Color(255,255,255,0));
…
KeypointPNGEncoderAdapter encoder = new KeypointPNGEncoderAdapter();
encoder.setEncodingAlpha(true);
encoder.encode(chart.createBufferedImage(width, height, BufferedImage.BITMASK, null));
The key is that you must use the KeyPointPNGEncoderAdapter, which is slower for big charts, but is the only [...]
I submitted a skeleton of the article that follows to JDJ, was told they would like to ‘commission’ it and then finally submitted it only to never hear anything back from them. So instead you get to read it here. Enjoy!
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Anyone who has spent any time working a application that sends emails has [...]
FYI: If you’re developing a Java web application using Tomcat on Mac OS X and you see:
org.apache.catalina.startup.Bootstrap
appearing in the dock, you need to add:
export JAVA_OPTS=”-Djava.awt.headless=true”
to your startup script.
Source:
· Installing Tomcat on OS X
· Decapitating java.awt
This morning I spent some time playing with WSE, .NET and Java. I knew Fiddler could listen in on conversations between IE and the world, but I never was able to get it to listen to conversations between me and well, me (ie: localhost). Turns out, according to the well named help page, that
“….NET will [...]
It’s been awhile since I mentioned anything about Lucene, my favorite Java based open source indexing and search library (which I built the karakoram spider / search application around). Doug Cutting, who created Lucene and who has spent the last couple years working on Nutch, was recently hired by Yahoo!. I just have a couple [...]
It’s wicked cold this weekend in Massachusetts so I stayed inside and had some fun with Apache James and Smack (an open source library for communicating with XMPP servers from Jive Software). See, I was looking over this page of Mailet ideas on the Apache James wiki and I saw two different people wanting instant [...]
I spent some quality time with Joshua Bloch this week and by that I mean his book Effective Java. In item number four (the book is organized as a series of fifty items, a format he borrowed from the Effective C++ book by Scott Meyers) he discusses the practice of reusing a single object (instead [...]
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