Re: Retrieving data from inside Jar/Zip files

Hi Ian,

With OpenMap 4.2.X, the layers can read data from within a jar file only
if you are running as an application. The jar file should be in the
classpath, and the paths set in the layer should be a relative path to
the desired file/directory inside the jar file, from the root.

For instance, let's say I put my vmap level 0 data in /vmaplv0/[disk0,
disk1, disk2, disk3]. If I wrapped them in the jar file in a data/vpf
directory, the openmap.properties entry for my VPFLayer would be

vpflayer.paths=data/vpf/vmaplv0/disk0;data/vpf/vmaplv0/disk1;etc...

and my data.jar file would be in the classpath.

Hope this helps,

Don

On Monday, July 16, 2001, at 09:28 AM, Ian Mayo wrote:

> Hi,
> I'm currently investigating how to store a subset of VPF data in a
> zip/jar
> file to allow me to distribute it to the my users more simply.
> From experimenting with the code, there appears to be problems with java
> being more fussy about how the pathnames are formed when reading from a
> jar.
>
> Has anybody experimenting with Zipping up VPF data for use directly from
> OpenMap? If so, do they have any "golden nuggets" to share on how they
> did
> this?
>
> thanks in advance,
> Ian Mayo
>
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