Hello all,
I'm using VFS to download and upload files from/to my machines. This is
the code I use for uploading a file.
FileSystemOptions fsOptions = new FileSystemOptions();
try {
SftpFileSystemConfigBuilder.getInstance().setStrictHostKeyChecking(fsOptions,
"no");
FileSystemManager fsManager = VFS.getManager();
String uri = "sftp://usr:[EMAIL PROTECTED]/work/newfile";
FileObject file = fsManager.resolveFile(uri, fsOptions);
FileObject localFile =
fsManager.resolveFile("d:\\lost.yuv.264.yuv");
file.copyFrom(localFile, Selectors.SELECT_SELF);
} catch (FileSystemException e) {
// TODO Auto-generated catch block
e.printStackTrace();
} catch (IOException e) {
// TODO Auto-generated catch block
e.printStackTrace();
}
When I try to upload a file larger than 20MB, I get an out of memory
exception:
Exception in thread "main" java.lang.OutOfMemoryError: Java heap space
at java.util.Arrays.copyOf(Unknown Source)
at java.io.ByteArrayOutputStream.write(Unknown Source)
at java.io.BufferedOutputStream.write(Unknown Source)
at java.io.BufferedOutputStream.flushBuffer(Unknown Source)
at java.io.BufferedOutputStream.flush(Unknown Source)
at java.io.FilterOutputStream.close(Unknown Source)
at
org.apache.commons.vfs.util.MonitorOutputStream.close(MonitorOutputStream.java:53)
at
org.apache.commons.vfs.provider.DefaultFileContent$FileContentOutputStream.close(DefaultFileContent.java:595)
at org.apache.commons.vfs.FileUtil.copyContent(FileUtil.java:107)
at
org.apache.commons.vfs.provider.AbstractFileObject.copyFrom(AbstractFileObject.java:893)
at SFTPTest.upload(SFTPTest.java:107)
I know I can increase the Heap size of the virtual machine, but I don't
want to do that because my files can become extremely big (>1GB).
Is there any other way to do SFTP without the transferred data being
stored in memory. Personally I think this is a bug, because transferring
files through ftp should not store them in memory but flushing them now
and then.
regards,
--
Nick Vercammen
Ghent University - IBCN - IBBT
Department of Information Technology
Gaston Crommenlaan 8 bus 201
9050 Gent, Belgium
E-mail: [EMAIL PROTECTED]
Tel. +32 9 33 14978
Fax +32 9 33 14899
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