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how to extract additional file types from bundle [message #651521]

Mon, 31 January 2011 14:34

Bo Ens

Messages: 10
Registered: January 2010

Junior Member

In our RCP app, we have a set of data files that are required to be read by in by one of our plug-ins. When the plug-in is extracted into "configuration/org.eclipse.osgi/bundles", these data files are not extracted from the plug-in jar file. How do I add support for these file types so they are extracted?

Thanks.

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Re: how to extract additional file types from bundle [message #651534 is a reply to message #651521]

Mon, 31 January 2011 15:24

Paul Webster

Messages: 6859
Registered: July 2009
Location: Ottawa

Senior Member

On 01/31/2011 09:34 AM, Ens wrote:
> In our RCP app, we have a set of data files that are required to be read
> by in by one of our plug-ins. When the plug-in is extracted into
> "configuration/org.eclipse.osgi/bundles", these data files are not
> extracted from the plug-in jar file. How do I add support for these file
> types so they are extracted?

In general, you make sure the files are included in your bundle using
the build.properties file (for files that are in the root of your plugin
project, as resources within the source tree are included automatically).

If they really were resources, you simply use
getClass().getResourceAsStream(*).

If they were included in your plugin, you use Bundle.getEntry(*) to get
the InputStream from the URL.

If you need files on the disk ... first I'd ask why, then send you to
FileLocator (which for a given bundle entry, will return a URL that
points to a file on disk).

PW

--
Paul Webster
http://wiki.eclipse.org/Platform_Command_Framework
http://wiki.eclipse.org/Command_Core_Expressions
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http://help.eclipse.org/galileo/index.jsp?topic=/org.eclipse .platform.doc.isv/guide/workbench.htm

Paul Webster
http://wiki.eclipse.org/Platform_Command_Framework
http://wiki.eclipse.org/Command_Core_Expressions
http://wiki.eclipse.org/Menu_Contributions

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Re: how to extract additional file types from bundle [message #651566 is a reply to message #651534]

Mon, 31 January 2011 16:38

Bo Ens

Messages: 10
Registered: January 2010

Junior Member

These files are included in the build.properties (and exist in the jar file).

We have a 3rd-party map wrapped by our plug-in and we are including a basic set of default shape files inside the plug-in. We do get the shape files using the getResource and FileLocator, but unfortunately, the shape files have 5 or 6 additional supporting files that we may not know about in the code.

Is it possible to enumerate all files in the map data directory and use the getResource/FileLocator to extract them. If we cannot determine at runtime which files are there, then we could just use a zip file and extract it at startup (this would be a last resort).

We just want all files required by 3rd-party application to be extracted from bundle, regardless of file type. they are all located under the same directory.

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Re: how to extract additional file types from bundle [message #651585 is a reply to message #651566]

Mon, 31 January 2011 17:50

Paul Webster

Messages: 6859
Registered: July 2009
Location: Ottawa

Senior Member

On 01/31/2011 11:38 AM, Ens wrote:
> Is it possible to enumerate all files in the map data directory and use
> the getResource/FileLocator to extract them. If we cannot determine at
> runtime which files are there, then we could just use a zip file and
> extract it at startup (this would be a last resort).

getResource(*) works on specific resources. But bundle entries can
enumerate all entries, and even without that FileLocator can extract an
entire folder with one call. Just use getEntry(*) with the folder name
(AFAIK).

PW

--
Paul Webster
http://wiki.eclipse.org/Platform_Command_Framework
http://wiki.eclipse.org/Command_Core_Expressions
http://wiki.eclipse.org/Platform_Expression_Framework
http://wiki.eclipse.org/Menu_Contributions
http://wiki.eclipse.org/Menus_Extension_Mapping
http://help.eclipse.org/galileo/index.jsp?topic=/org.eclipse .platform.doc.isv/guide/workbench.htm

Paul Webster
http://wiki.eclipse.org/Platform_Command_Framework
http://wiki.eclipse.org/Command_Core_Expressions
http://wiki.eclipse.org/Menu_Contributions

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Re: how to extract additional file types from bundle [message #651618 is a reply to message #651585]

Mon, 31 January 2011 22:06

Bo Ens

Messages: 10
Registered: January 2010

Junior Member

Thanks for the info. I ended up having to use Bundle.getEntryPaths to list all files inside the directory and then called Bundle.getResource/FileLocator.toFileURL on each file in the directory. Calling Bundle.getEntry did not pull any files from the bundle jar file into the cache.

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