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Re: [eclipse-dev] resolve(URL) and asLocalURL()

After some discussion it has been decided to revert back to the previous behavior for resolve(URL) to return a file or jar URL.

The reason the change was done was to prepare for running plugins out of jars instead of running out directories.  The problem is the resource that a platform URL could reference might not be an actual file on the filesystem.  It may reference a zipentry in a zipped up plugin.  Or if you are trying to run plugins from a remote server then it may actually be an http URL.  The resolve API makes no gaurantee on the type of URL that it returns.  With that said it is a bit brutal to change the URL type to something other than a default java supplied protocol (file, jar, http etc).  So the behavior of resolve(URL) will be to return a URL that uses one of the java supplied protocols.  For plugins running out of directories this will continue to be a file URL.  But for plugins that run out of jars this will be a jar URL.  This should allow our current usecases of resolve(URL) to work because eclipse currently runs out of directories so a file URL will always be returned.  But please note that if eclipse is to ever run out of jars and you have code that requires a file URL then you must use the asLocalURL() since this will force a cache of the resource the platform URL references so that a proper file URL can be created.

Thomas Watson
Pervasive Development
Phone: 512-838-4533 Tie: 678-4533
tjwatson@xxxxxxxxxx


Dejan Glozic <dejan@xxxxxxxxxx>
Sent by: eclipse-dev-admin@xxxxxxxxxxx

01/19/2004 10:46 AM
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        Subject:        [eclipse-dev] resolve(URL) and asLocalURL()







This change is causing a lot of breakage. Can you describe the benefit of
this breaking change that justifies the pain?

Regards,

Dejan Glozic, Ph.D.
Manager, Eclipse Development 1A
D2/R0Q/8200/MKM
IBM Canada Ltd.
Tel. 905 413-2745  T/L 969-2745
Fax. 905 413-4854

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