Re: [xwiki-devs] State of filesystem attachment storage.

On 01/26/2011 02:10 PM, Paul Libbrecht wrote: Yes, the attachment content goes into a file named whatever the attachment is named. It will be something like this: <storage dir>/xwiki/Sandbox/Test/~this/attachments/file.txt/file.txt The metadata such as date, uploader, and version will be made into an XML file by the serializer. That will look something like this: <?xml version="1.0" encoding="UTF-8"?> <attachment serializer="attachment-meta/1.0"> <filename>file1</filename> <filesize>10</filesize> <author>me</author> <version>1.1</version> <comment>something whitty</comment> <date>1293045632168</date> </attachment> serializer="attachment-meta/1.0" That is the component lookup name of the serializer which makes way for future xml serializer implementations. Versions of the file will be in the same directory: The naming rule is as follows: The filename is URL encoded and the version has "~v" prepended so that it cannot be mistaken for part of the filename. If the filename contains one or more '.' characters then the version is inserted before the last '.' character. Otherwise it is appended to the file name. This means a file such as: file.txt version 1.1 will become file~v1.1.txt and will still be recognized by a text editor A file with no extension such as myUnknownFile version 1.1 will become myUnknownFile~v1.1 Because of URL encoding, a file named file~v1.3.txt of version 1.1 will become file%7Ev1.3~1.1.txt and thus will not collide with file.txt version 1.1. Caleb