Jeff, You are my hero for today. Can you please send me some code prototype on how to make that work? Is "ByteBuffer" the actual type you used? I definitely will try that out soon? but any piece of your code sample is a great help to me.
Chopin --- On Fri, 10/9/09, Jeffrey Kesselman <jef...@gmail.com> wrote: > From: Jeffrey Kesselman <jef...@gmail.com> > Subject: Re: How to Cache A Physical File > To: "JCS Users List" <jcs-users@jakarta.apache.org> > Date: Friday, October 9, 2009, 1:14 PM > I cache file contents in my cache. > > The trick is this... the cache will attempt to serialize > and cache the java > object you pass it. So passing it the input stream is > wrong... it will try > to cache the input stream object not the contents of the > stream. > > What I do is read my content into a ByteBuffer and then > cache that. > > On Fri, Oct 9, 2009 at 12:04 PM, Chopin hu <hucho...@yahoo.com> > wrote: > > > 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 > > > > > > > -- > ~~ Microsoft help desk says: reply hazy, ask again later. > ~~ > --------------------------------------------------------------------- To unsubscribe, e-mail: jcs-users-unsubscr...@jakarta.apache.org For additional commands, e-mail: jcs-users-h...@jakarta.apache.org
