RE: Best place to store files ?
Hi, What Wendy said is right on, so I'm glad you're already down that path. If the files are temporary, i.e. you don't mind them being erased when the server restarts, you can use the javax.servlet.context.tempdir context attribute. That's the portable, preferred way to handle temporary files. For permanent files, do what Wendy said. Tomcat is not deficient or lacking here in any way: if something is lacking, it's the Servlet Spec, but I personally don't think it's lacking because there's still a use-case for the no-filesystem servlet container. Yoav Shapira http://www.yoavshapira.com -Original Message- From: Eric VERGNAUD [mailto:[EMAIL PROTECTED] Sent: Tuesday, December 07, 2004 8:52 PM To: Tomcat Users List Subject: Re: Best place to store files ? le 8/12/04 0:15, Wendy Smoak à [EMAIL PROTECTED] a écrit : From: Eric VERGNAUD [EMAIL PROTECTED] Yes it's simple. I was just wondering whether there was a preferred method for this, and maybe a folder in the Tomcat directory for that purpose. Nothing in the Servlet Specification requires Tomcat to provide you with a permanent place to put uploaded files. My advice would be to put them outside of Tomcat, and write a thin layer to insulate the Servlet from whatever decisions you're making today. That way, if you decide at some point in the future to put the files in a database, or do something else with them, you don't have to mess with the Servlet code. Your Servlet shouldn't know or care where the files are, it should just call 'read' or 'write' and let the data access layer deal with the details. Which is what I already do. As a matter of fact, the layer I'm using makes it look like a database. The only thing I was looking for is the preferred place for storing files. If there is none, that's ok. --- Eric VERGNAUD - JLynx Software Cutting-edge technologies and services for software companies web: http://www.jlynx.com --- - To unsubscribe, e-mail: [EMAIL PROTECTED] For additional commands, e-mail: [EMAIL PROTECTED] This e-mail, including any attachments, is a confidential business communication, and may contain information that is confidential, proprietary and/or privileged. This e-mail is intended only for the individual(s) to whom it is addressed, and may not be saved, copied, printed, disclosed or used by anyone else. If you are not the(an) intended recipient, please immediately delete this e-mail from your computer system and notify the sender. Thank you. - To unsubscribe, e-mail: [EMAIL PROTECTED] For additional commands, e-mail: [EMAIL PROTECTED]
RE: Best place to store files ?
From: Shapira, Yoav [mailto:[EMAIL PROTECTED] Tomcat is not deficient or lacking here in any way: if something is lacking, it's the Servlet Spec, but I personally don't think it's lacking because there's still a use-case for the no-filesystem servlet container. Hmm. Sorry, Yoav, but I think that's specious. There's still a use-case for the motorcycle, but it doesn't invalidate the use-case for the station wagon. Similarly, there is a use-case for the no-filesystem servlet container, but I would argue that that is a special case (possibly achieved via configuration) of a more general servlet container. - Peter - To unsubscribe, e-mail: [EMAIL PROTECTED] For additional commands, e-mail: [EMAIL PROTECTED]
RE: Best place to store files ?
Hi, From: Shapira, Yoav [mailto:[EMAIL PROTECTED] Tomcat is not deficient or lacking here in any way: if something is lacking, it's the Servlet Spec, but I personally don't think it's lacking because there's still a use-case for the no-filesystem servlet container. Hmm. Sorry, Yoav, but I think that's specious. There's still a use-case for the motorcycle, but it doesn't invalidate the use-case for the station wagon. Similarly, there is a use-case for the no-filesystem servlet container, but I would argue that that is a special case (possibly achieved via configuration) of a more general servlet container. I didn't say the no-filesystem container use-case pre-empts the one with filesystem. So specious is not a good word. But then again, I don't really care if you think it's specious or not, as I said, this is Spec-mandated and not Tomcat's call to make. Accordingly, any complaints of the specious and other type should be directed to the Servlet Expert Group. Yoav Shapira http://www.yoavshapira.com This e-mail, including any attachments, is a confidential business communication, and may contain information that is confidential, proprietary and/or privileged. This e-mail is intended only for the individual(s) to whom it is addressed, and may not be saved, copied, printed, disclosed or used by anyone else. If you are not the(an) intended recipient, please immediately delete this e-mail from your computer system and notify the sender. Thank you. - To unsubscribe, e-mail: [EMAIL PROTECTED] For additional commands, e-mail: [EMAIL PROTECTED]
Best place to store files ?
Hi, I'm developing a servlet which needs to handle file uploads and downloads. I manage to store the files in a directory inside my servlet, but each time I upload a new version of my servlet, the files are destroyed. Is there a preferred place to store such files in Tomcat, or is this entirely up to the developer and the catalina.policy file ? Is there a way to tell Tomcat NOT to erase existing files in a servlet, but only overwrite them with files from the war file ? --- Eric VERGNAUD - JLynx Software Cutting-edge technologies and services for software companies web: http://www.jlynx.com --- - To unsubscribe, e-mail: [EMAIL PROTECTED] For additional commands, e-mail: [EMAIL PROTECTED]
Re: Best place to store files ?
Put them in a database instead? [EMAIL PROTECTED] 12/07/04 3:11 PM Hi, I'm developing a servlet which needs to handle file uploads and downloads. I manage to store the files in a directory inside my servlet, but each time I upload a new version of my servlet, the files are destroyed. Is there a preferred place to store such files in Tomcat, or is this entirely up to the developer and the catalina.policy file ? Is there a way to tell Tomcat NOT to erase existing files in a servlet, but only overwrite them with files from the war file ? --- Eric VERGNAUD - JLynx Software Cutting-edge technologies and services for software companies web: http://www.jlynx.com --- - To unsubscribe, e-mail: [EMAIL PROTECTED] For additional commands, e-mail: [EMAIL PROTECTED] - To unsubscribe, e-mail: [EMAIL PROTECTED] For additional commands, e-mail: [EMAIL PROTECTED]
Re: Best place to store files ?
le 7/12/04 23:20, Larry Meadors à [EMAIL PROTECTED] a écrit : Put them in a database instead? Thanks, but not an option in this case. --- Eric VERGNAUD - JLynx Software Cutting-edge technologies and services for software companies web: http://www.jlynx.com --- - To unsubscribe, e-mail: [EMAIL PROTECTED] For additional commands, e-mail: [EMAIL PROTECTED]
Re: Best place to store files ?
I use a directory that belongs to the owner of Tomcat and is located outside of the Tomcat directory. It really is a matter of preference. As for not overwriting the files, I have yet to read anything on this. How would you determine which file to keep and which to overwrite? If you never deleted any files then the directory would fill with abandoned file that belonged to prior versions of your app. That means you would have to manage the files manually and with that is the chance to delete a file belonging to your app. Simple terms, pick a place just for them use it. Doug - Original Message - From: Eric VERGNAUD [EMAIL PROTECTED] To: Tomcat Users List [EMAIL PROTECTED] Sent: Tuesday, December 07, 2004 5:11 PM Subject: Best place to store files ? Hi, I'm developing a servlet which needs to handle file uploads and downloads. I manage to store the files in a directory inside my servlet, but each time I upload a new version of my servlet, the files are destroyed. Is there a preferred place to store such files in Tomcat, or is this entirely up to the developer and the catalina.policy file ? Is there a way to tell Tomcat NOT to erase existing files in a servlet, but only overwrite them with files from the war file ? --- Eric VERGNAUD - JLynx Software Cutting-edge technologies and services for software companies web: http://www.jlynx.com --- - To unsubscribe, e-mail: [EMAIL PROTECTED] For additional commands, e-mail: [EMAIL PROTECTED] - To unsubscribe, e-mail: [EMAIL PROTECTED] For additional commands, e-mail: [EMAIL PROTECTED]
Re: Best place to store files ?
le 7/12/04 23:33, Parsons Technical Services à [EMAIL PROTECTED] a écrit : I use a directory that belongs to the owner of Tomcat and is located outside of the Tomcat directory. It really is a matter of preference. As for not overwriting the files, I have yet to read anything on this. How would you determine which file to keep and which to overwrite? If you never deleted any files then the directory would fill with abandoned file that belonged to prior versions of your app. That means you would have to manage the files manually and with that is the chance to delete a file belonging to your app. Simple terms, pick a place just for them use it. Doug Yes it's simple. I was just wondering whether there was a preferred method for this, and maybe a folder in the Tomcat directory for that purpose. --- Eric VERGNAUD - JLynx Software Cutting-edge technologies and services for software companies web: http://www.jlynx.com --- - To unsubscribe, e-mail: [EMAIL PROTECTED] For additional commands, e-mail: [EMAIL PROTECTED]
Re: Best place to store files ?
Not to my knowledge. But it has been known to be lacking at times. Doug - Original Message - From: Eric VERGNAUD [EMAIL PROTECTED] To: Tomcat Users List [EMAIL PROTECTED] Sent: Tuesday, December 07, 2004 5:55 PM Subject: Re: Best place to store files ? le 7/12/04 23:33, Parsons Technical Services à [EMAIL PROTECTED] a écrit : I use a directory that belongs to the owner of Tomcat and is located outside of the Tomcat directory. It really is a matter of preference. As for not overwriting the files, I have yet to read anything on this. How would you determine which file to keep and which to overwrite? If you never deleted any files then the directory would fill with abandoned file that belonged to prior versions of your app. That means you would have to manage the files manually and with that is the chance to delete a file belonging to your app. Simple terms, pick a place just for them use it. Doug Yes it's simple. I was just wondering whether there was a preferred method for this, and maybe a folder in the Tomcat directory for that purpose. --- Eric VERGNAUD - JLynx Software Cutting-edge technologies and services for software companies web: http://www.jlynx.com --- - To unsubscribe, e-mail: [EMAIL PROTECTED] For additional commands, e-mail: [EMAIL PROTECTED] - To unsubscribe, e-mail: [EMAIL PROTECTED] For additional commands, e-mail: [EMAIL PROTECTED]
Re: Best place to store files ?
From: Eric VERGNAUD [EMAIL PROTECTED] Yes it's simple. I was just wondering whether there was a preferred method for this, and maybe a folder in the Tomcat directory for that purpose. Nothing in the Servlet Specification requires Tomcat to provide you with a permanent place to put uploaded files. My advice would be to put them outside of Tomcat, and write a thin layer to insulate the Servlet from whatever decisions you're making today. That way, if you decide at some point in the future to put the files in a database, or do something else with them, you don't have to mess with the Servlet code. Your Servlet shouldn't know or care where the files are, it should just call 'read' or 'write' and let the data access layer deal with the details. -- Wendy Smoak - To unsubscribe, e-mail: [EMAIL PROTECTED] For additional commands, e-mail: [EMAIL PROTECTED]
Re: Best place to store files ?
le 8/12/04 0:15, Wendy Smoak à [EMAIL PROTECTED] a écrit : From: Eric VERGNAUD [EMAIL PROTECTED] Yes it's simple. I was just wondering whether there was a preferred method for this, and maybe a folder in the Tomcat directory for that purpose. Nothing in the Servlet Specification requires Tomcat to provide you with a permanent place to put uploaded files. My advice would be to put them outside of Tomcat, and write a thin layer to insulate the Servlet from whatever decisions you're making today. That way, if you decide at some point in the future to put the files in a database, or do something else with them, you don't have to mess with the Servlet code. Your Servlet shouldn't know or care where the files are, it should just call 'read' or 'write' and let the data access layer deal with the details. Which is what I already do. As a matter of fact, the layer I'm using makes it look like a database. The only thing I was looking for is the preferred place for storing files. If there is none, that's ok. --- Eric VERGNAUD - JLynx Software Cutting-edge technologies and services for software companies web: http://www.jlynx.com --- - To unsubscribe, e-mail: [EMAIL PROTECTED] For additional commands, e-mail: [EMAIL PROTECTED]
