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pack:tag
What is pack:tag
pack:tag is a JSP-Taglib that minifies, compresses and combines resources (like JavaScript and CSS) and caches them in memory or in a generated file. It works transparent to the user/developer and the compressing-algorithms are pluggable.
pack:tag - one minute quick start tutorial
pack:tag - a packed guide to website performance optimization.pdf
download pack:tag
Features
pack:tag offers many advantages to your development and deployment:
- Minification of JavaScript and Cascading Style Sheets
- Caching to memory (default) or file system
- The minified content is delivered gzipped (memory)
- Combination of resources
- Combination of subdirectories (wildcard syntax)
- External resources can be packed and then served locally
- Cached resources are updated automatically on change
- Minification and compression adjustable on single resources
- Relative path support (memory)
- Charset support
- Strict XHTML conformity
- Apache Standard taglib support for evaluations
- Advanced caching techniques (etag configuration, 304 status header, expire header, ..)
- No resource will be written out twice
- Cloaking of resources
- Caching Provider are pluggable (Ehcache Provider is included)
Benefits you get when compressing static resources with pack:tag:
- Reduced bandwidth
- Reduced number of requests
- Faster loading time for the client
- Browser caching side-effects of JavaScript files solved
- Obfuscation of the content (depending on the strategy, at least uglyfying) and the resource names, cloaking is also possible
Lets take a look at the big picture:
And this is what happens to a resource (here JavaScript compressed with JSMin):
Requirements
Feedback
If you have suggestions, found bugs or want to give feedback in general, please go to the project page, hosted on sourceforge, and leave a message:
http://www.sourceforge.net/projects/packtag
About
Developed by Daniel Galán y Martins in 2007-2008, Licensed under LGPL 2.1
