There's also a couple of other things you can do to make this a LOT
faster.
If you're using JDK 1.5, you can use String.replace(CharSequence,
CharSequence) instead of String.replaceAll(String, String). The
reason is that String.replaceAll(String, String) uses regex which is
very costly. In this case the pattern of characters that you're
searching for is always going to be the same - "&" - so using
regex is serious overkill.
If you're not using JDK 1.5 you might try just using:
url = NSArray.componentsSeparatedByString(url,
"&").componentsJoinedByString("&");
Even though you're creating a temporary array it might still be
faster than using regex.
On Jul 30, 2007, at 12:47 PM, Alex Johnson wrote:
Hi,
Back in Feb 2006, there was a discussion about a bug in WebObjects
5.3.x that caused WOHyperlink to generate doubly-escaped ampersands
its URLs (see: <http://lists.apple.com/archives/webobjects-dev/2006/
Feb/msg00324.html>). I've been using Daniel Muller's patch <http://
lists.apple.com/archives/webobjects-dev/2006/Feb/msg00451.html>
ever since.
Recently, I ran up against the performance limitations of this fix:
A page with a few hundred links on it takes ~30 seconds to
generate, 2/3 of which are spent in the patch code. So, I tweaked
the patch to improve its performance, and wanted to share my
results (below). Using this version, the page generation is well
under one second. The performance improvement comes from in-place
manipulation of the response's content, as opposed to replacing the
content with a modified copy. This results in a much smaller memory
footprint, which greatly reduces the time spent allocating and
garbage-collecting throughout the application.
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