[COMPRESS-68] Filename suffix mappings for compression formats

• Type: New Feature
• Status: Resolved
• Priority: Minor
• Resolution: Fixed
• Fix Version/s: 1.0
• Assignee: Unassigned
• Reporter: Jukka Zitting
• Created: 02/Apr/09 21:13
• Updated: 08/Mar/13 05:09
• Resolved: 03/Apr/09 00:37

Description

There are many file name suffix conventions like .tgz for gzipped .tar files and .svgz for gzipped .svg files. It would be useful if Commons Compress knew about these conventions and provided tools to help client applications to use these conventions.

For example in Apache Tika we currently have the following custom code to deduce the original filename from a gzipped file:

if (name.endsWith(".tgz")) {
    name = name.substring(0, name.length() - 4) + ".tar";
} else if (name.endsWith(".gz") || name.endsWith("-gz")) {
    name = name.substring(0, name.length() - 3);
} else if (name.toLowerCase().endsWith(".svgz")) {
    name = name.substring(0, name.length() - 1);
} else if (name.toLowerCase().endsWith(".wmz")) {
    name = name.substring(0, name.length() - 1) + "f";
} else if (name.toLowerCase().endsWith(".emz")) {
    name = name.substring(0, name.length() - 1) + "f";
}

It would be nice if we instead could do something like this:

    name = GzipUtils.getGunzipFilename(name);