Yes. Actually, that is exactly what I am looking for. Not clear how to use that yet, though.
Thank you so much for all your help on this. Chopin --- On Fri, 10/9/09, Tim Cronin <tim.cro...@autonomy.com> wrote: > From: Tim Cronin <tim.cro...@autonomy.com> > Subject: RE: How to Cache A Physical File > To: "JCS Users List" <jcs-users@jakarta.apache.org> > Date: Friday, October 9, 2009, 11:48 AM > You should follow this as it seems > like what you are looking to do. > > https://issues.apache.org/jira/browse/JCS-58 > > > -----Original Message----- > From: fox1964 [mailto:hucho...@yahoo.com] > > Sent: Wednesday, October 07, 2009 7:01 PM > To: jcs-users@jakarta.apache.org > Subject: RE: How to Cache A Physical File > > > Tim, > > Thank you so much for your reply. There > are two requirements for this > cache: first, the files shall be cached to the disk; > second Also, that > a > whole file content shall be cached instead of just a > filename. I am > not > using java much, and have not been using that for a long > time. Can you > point me to what object I should rebuild the input stream, > which I think > can > be serialized for use in JCS? > > do appreciate any input on this. > > fox1964 > > > > Tim Cronin-2 wrote: > > > > If you're only using the memory cache you should be > able to cache > those > > input streams, but you can't serialize them to disk as > they have > native > > file handles tied to them. > > > > You would need to wrap them and basically rebuild the > input stream > > completely. > > > > It might just be simpler to cache the file name and > build the input > > stream. > > > > If you're concerned about performance I think the > reading will be the > > biggest issue and not the creation of the input stream > itself. > > > > > > -----Original Message----- > > From: fox1964 [mailto:hucho...@yahoo.com] > > > Sent: Tuesday, October 06, 2009 10:17 PM > > To: jcs-users@jakarta.apache.org > > Subject: How to Cache A Physical File > > > > > > I have a large physical file downloaded to my > server. I'd like to > > cache the > > file so that my program can read faster. I've > configured JCS > properly. > > I > > can see the "mycache.key" and "mycache.data" files are > updated every > > time I > > use a string for both a key/value pair. > But how can I put a > physical > > file > > into cache? Right now, I use an > "FileInputStream" object to read the > > file, > > and put into the cache. > > > > FileInputStream input = new FileInputStream(file); > > > cache.put(input); > > > > This seems to go thru without prompting any error > message. But when > I > > tried to retrieve it, I got a message > "java.lang.NullPointerException" > > when > > > cache.get(key); > > > > I can see the mycache.key file updated, but can NOT > see any updates in > > mycache.data file by looking at the timestamp. > > > > Any guru can show me what I may do > wrong? Or do you have any sample > > code > > to do this? Thanks a lot in advance. > > > > > > -- > > View this message in context: > > > http://www.nabble.com/How-to-Cache-A-Physical-File-tp25779933p25779933.h > > tml > > Sent from the JCS - Users mailing list archive at > Nabble.com. > > > > > > > --------------------------------------------------------------------- > > To unsubscribe, e-mail: jcs-users-unsubscr...@jakarta.apache.org > > For additional commands, e-mail: jcs-users-h...@jakarta.apache.org > > > > > > > --------------------------------------------------------------------- > > To unsubscribe, e-mail: jcs-users-unsubscr...@jakarta.apache.org > > For additional commands, e-mail: jcs-users-h...@jakarta.apache.org > > > > > > > > -- > View this message in context: > http://www.nabble.com/How-to-Cache-A-Physical-File-tp25779933p25796503.h > tml > Sent from the JCS - Users mailing list archive at > Nabble.com. > > > --------------------------------------------------------------------- > To unsubscribe, e-mail: jcs-users-unsubscr...@jakarta.apache.org > For additional commands, e-mail: jcs-users-h...@jakarta.apache.org > > > --------------------------------------------------------------------- > To unsubscribe, e-mail: jcs-users-unsubscr...@jakarta.apache.org > For additional commands, e-mail: jcs-users-h...@jakarta.apache.org > > --------------------------------------------------------------------- To unsubscribe, e-mail: jcs-users-unsubscr...@jakarta.apache.org For additional commands, e-mail: jcs-users-h...@jakarta.apache.org
