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Writing to zip file with Eclipse EFS [message #656156]

Thu, 24 February 2011 11:21

Anders S

Messages: 29
Registered: February 2011

Junior Member

I have a plugin where I want to mount a zip file in the file system;
this file should be part of the project (not the project itself).
As a lot of other Eclipse related stuff, I can't find any good documentation Razz

To implement the reading I have used this tutorial: http://www.eclipsezone.com/articles/efs/.
The problem I have is to implement the write support. I have figured I have to implement openOutputStream, but I can't figure out how to do it.

Does anyone know how to do this? Is there any existing implementations?

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Re: Writing to zip file with Eclipse EFS [message #657336 is a reply to message #656156]

Wed, 02 March 2011 13:40

Anders S

Messages: 29
Registered: February 2011

Junior Member

It appears my question was a bit vague, so I'll try to clarify a bit.

When implementing a writable file system, you need to override mkdir, delete and openOutputStream.
Specifically I'm having a hard time implementing openOutputStream.
As of now I'm returning a ZipOutputStream from ZipRootItem when openOuputStream is called. This doesnt make much sense though, as I need to append ZipEntry's and the actual files that should be written.

What is the best strategy to solve this?
Is it possible to to write only one file to the zip file?

I'll provide more info if needed Smile

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Re: Writing to zip file with Eclipse EFS [message #657382 is a reply to message #657336]

Wed, 02 March 2011 15:57

Ed Merks

Messages: 33142
Registered: July 2009

Senior Member

You might want to look into how EMF implements ArchiveURIHandlerImpl and
ArchiveURLConnection as an example for how to implement delete and
update only a single entry.

navlelo wrote:
> It appears my question was a bit vague, so I'll try to clarify a bit.
>
> When implementing a writable file system, you need to override mkdir,
> delete and openOutputStream. Specifically I'm having a hard time
> implementing openOutputStream. As of now I'm returning a
> ZipOutputStream from ZipRootItem when openOuputStream is called. This
> doesnt make much sense though, as I need to append ZipEntry's and the
> actual files that should be written.
> What is the best strategy to solve this?
> Is it possible to to write only one file to the zip file?
>
> I'll provide more info if needed :)

Ed Merks
Professional Support: https://www.macromodeling.com/

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