How to get FileChannel from resource

Ulf Zibis Ulf.Zibis at
Mon Mar 2 12:15:30 UTC 2009

Sherman, yes, you are right. That's not what I'm looking for.

This would be slower, than reading the stream directly, because the 
underlying byte array will be copied 2 times by 
BufferedInputStream#<init> + Channels.ReadableByteChannelImpl#read(),
... but maybe not, because looping BufferedInputStream#readChar() could 
be slower than twice System.arraycopy().

Anyway, I'm looking for a DirectBuffer directly from a resource file.
So I think there is something missing:
URL.openChannel() or Class#getResourceAsChannel()

Maybe there is a way to get a RamdomAccessFile from URL to get the 
Channel from. Anybody knows ?

Should I file a bug ?
Somebody any objections ?


Am 02.03.2009 08:50, Xueming Shen schrieb:
> You can use java.nio.channels.Channels.newChannel()  to get a 
> ReadableByteChannel on top of the
> InputStream you get from URL.openStream()...
> but if my guess of what you want to do is correct, that channel is 
> probably not that useful:-)
> Sherman
> Ulf Zibis wrote:
>> Hi all
>> there is a { URL getResource(String name) } in class Class.
>> Does anybody know, how to get a java.nio.channels.Channel or 
>> FileChannel from this URL?
>> Thanks in advance,
>> -Ulf

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