Sign Up to our social questions and Answers Engine to ask questions, answer people’s questions, and connect with other people.
Login to our social questions & Answers Engine to ask questions answer people’s questions & connect with other people.
Lost your password? Please enter your email address. You will receive a link and will create a new password via email.
Please briefly explain why you feel this question should be reported.
Please briefly explain why you feel this answer should be reported.
Please briefly explain why you feel this user should be reported.
The osgi R4 specification on ‘initial provisioning page 231’ talks about
‘The result of the request must be a ZIP file(content type application/ZIP)’…’The zip file may contain only four types of dictionary entries: text, binary, bundle or bundle-url. The types are specified in the ZIP entry’s extra field’
I don’t know a ZIP file other than having files with a single name.
Has anyone found an example which shows such a zip file ?
Many thanks!
As I understand it, the ZipEntry name is the “name” part of the name-value pair, the data is the “value” part, and – here’s the whacky bit – the “extra” field of ZipEntry holds a MIME type which explains how the data is to be interpreted, e.g. as a byte array, as String data, or as a URL pointing to the “real” data. Quite ingenious really.
We tend to think of a zip file as holding just file names and contents, but in fact each entry in a zip file holds or can hold quite a bit of metatdata; name, “extra” data, comment, CRC, compression method used, etc.. Java.util.zip.ZipEntry allows you to set all of these fields, so it’s no problem to create such files in Java – even if none of us ever saw such a beast before.