Sar extraction control

Users need to be able to control exactly how artefacts in .sar are extracted, updated, deleted etc. The best way is to allow the user to specify a new configuration file such as;

SAR-INF/filesystem.xml

In it we would contain a list of file filesets and associated actions to take with the filesets. Some example actions include;

• extract to temporary work directory when deployed
• extract to base directory of application
• when upgrading a .sar (ie .sar is newer) then extract this
• when upgrading a .sar (ie .sar is newer) then extract this if and only if there is no corresponding file with a modify time greater than file in .sar file

A sample descriptor may be

<filesystem version="1.0">

<extractToBaseDir>
<fileset dir="SAR-INF">
<include name="*.xml"/>
</fileset>
<fileset dir=".">
<exclude name="SAR-INF/**"/>
</fileset>
</extractToBaseDir>

<extractToWorkDir>
<fileset dir=".">
<include name="SAR-INF//*"/>
</fileset>
</extractToWorkDir>

</filesystem>

You can use the PatternMatcher from Spice to perform the pattern matching.