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Re: Deployed Applications can't access file system
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Re: Deployed Applications can't access file system


  • Subject: Re: Deployed Applications can't access file system
  • From: Chuck Hill <email@hidden>
  • Date: Fri, 16 Jan 2009 11:43:14 -0800


On Jan 16, 2009, at 11:31 AM, Louis Demers wrote:

Hi,
my webobjects/wonder app needs to access/create files/directories in a directory of the server where it runs. When I debug in eclipse the application on my powerbook it works correctly but once installed on the server I get the message below. I assume that the applications runs as _appserver so, In Workgroup Manager, I added this user to the group who has access to this directory. but still does not works.


Any advice ? Is there any special procedures in Java or WebObjects to access files ?

No, you just have a permissions problem that you are not seeing. Follow the path down from / using these commands:
http://www.gvcsitemaker.com/gvc.webobjects/faq&mode=single&recordID=37272


If it is a mounted volume on another machine, you can be in for extra fun.

Also be aware that anything you _create_ will not be group or world writable. Only _appserver will have write access. So if you are sharing this with other applications and users that can be a problem. The only solution for Java 5 is to use ERXFileUtilities.chmod() on the file / directory after you create it. There is also ERXFileUtilities.chmodRecusively


Chuck



Jan 16 14:08:32 Obzerv[2001] DEBUG com.obzerv.eo.Spec - making directories /Obzerv/Spec & Parts/ASM/ASM-0117/Spec/Dot/
java.io.FileNotFoundException: /Obzerv/Spec & Parts/DotPreamble (Permission denied)
at java.io.FileInputStream.open(Native Method)
at java.io.FileInputStream.<init>(FileInputStream.java:106)
at java.io.FileReader.<init>(FileReader.java:55)
at com.obzerv.Obzerv.getContents(Obzerv.java:82)
at com.obzerv.eo.Spec.createDotFiles(Spec.java:189)
at com .obzerv.component.SpecHierarchy.appendToResponse(SpecHierarchy.java: 38)
at com.webobjects.appserver.WOSession.appendToResponse(WOSession.java: 1381)
at er.extensions.appserver.ERXSession.appendToResponse(ERXSession.java: 536)
at com .webobjects .appserver.WOApplication.appendToResponse(WOApplication.java:1785)
at er .extensions .appserver.ERXApplication.appendToResponse(ERXApplication.java:1546)
at com .webobjects .appserver ._private .WOComponentRequestHandler ._dispatchWithPreparedPage(WOComponentRequestHandler.java:242)
at com .webobjects .appserver ._private .WOComponentRequestHandler ._dispatchWithPreparedSession(WOComponentRequestHandler.java:298)
at com .webobjects .appserver ._private .WOComponentRequestHandler ._dispatchWithPreparedApplication(WOComponentRequestHandler.java:332)
at com .webobjects .appserver ._private .WOComponentRequestHandler ._handleRequest(WOComponentRequestHandler.java:369)
at com .webobjects .appserver ._private .WOComponentRequestHandler .handleRequest(WOComponentRequestHandler.java:442)
at com .webobjects .appserver.WOApplication.dispatchRequest(WOApplication.java:1678)
at er .extensions .appserver .ERXApplication.dispatchRequestImmediately(ERXApplication.java:1646)
at er .extensions .appserver.ERXApplication.dispatchRequest(ERXApplication.java:1610)
at com .webobjects .appserver._private.WOWorkerThread.runOnce(WOWorkerThread.java:144)
at com .webobjects .appserver._private.WOWorkerThread.run(WOWorkerThread.java:226)
at java.lang.Thread.run(Thread.java:613)


Jan 16 14:05:02 Obzerv[2001] ERROR com.obzerv.eo.Spec - Error: dot: can't open /Obzerv/Spec & Parts/ASM/ASM-0117/Spec/Dot/ASM-0117.BH.dot
Jan 16 14:05:02 Obzerv[2001] ERROR com.obzerv.eo.Spec - Error: dot: can't open /Obzerv/Spec & Parts/ASM/ASM-0117/Spec/Dot/ASM-0117.BH.dot
java.io.IOException: Permission denied
at java.io.UnixFileSystem.createFileExclusively(Native Method)
at java.io.File.createNewFile(File.java:850)
at com.obzerv.Obzerv.setContents(Obzerv.java:128)
at com.obzerv.eo.Spec.createDotFiles(Spec.java:212)
at com .obzerv.component.SpecHierarchy.appendToResponse(SpecHierarchy.java: 38)
at com.webobjects.appserver.WOSession.appendToResponse(WOSession.java: 1381)
at er.extensions.appserver.ERXSession.appendToResponse(ERXSession.java: 536)
at com .webobjects .appserver.WOApplication.appendToResponse(WOApplication.java:1785)
at er .extensions .appserver.ERXApplication.appendToResponse(ERXApplication.java:1546)
at com .webobjects .appserver ._private .WOComponentRequestHandler ._dispatchWithPreparedPage(WOComponentRequestHandler.java:242)
at com .webobjects .appserver ._private .WOComponentRequestHandler ._dispatchWithPreparedSession(WOComponentRequestHandler.java:298)
at com .webobjects .appserver ._private .WOComponentRequestHandler ._dispatchWithPreparedApplication(WOComponentRequestHandler.java:332)
at com .webobjects .appserver ._private .WOComponentRequestHandler ._handleRequest(WOComponentRequestHandler.java:369)
at com .webobjects .appserver ._private .WOComponentRequestHandler .handleRequest(WOComponentRequestHandler.java:442)
at com .webobjects .appserver.WOApplication.dispatchRequest(WOApplication.java:1678)
at er .extensions .appserver .ERXApplication.dispatchRequestImmediately(ERXApplication.java:1646)
at er .extensions .appserver.ERXApplication.dispatchRequest(ERXApplication.java:1610)
at com .webobjects .appserver._private.WOWorkerThread.runOnce(WOWorkerThread.java:144)
at com .webobjects .appserver._private.WOWorkerThread.run(WOWorkerThread.java:226)
at java.lang.Thread.run(Thread.java:613)
Jan 16 14:05:02 Obzerv[2001] ERROR com.obzerv.eo.Spec - Error: dot: can't open /Obzerv/Spec & Parts/ASM/ASM-0117/Spec/Dot/ASM-0117.HH.dot
Jan 16 14:05:02 Obzerv[2001] ERROR com.obzerv.eo.Spec - Error: dot: can't open /Obzerv/Spec & Parts/ASM/ASM-0117/Spec/Dot/ASM-0117.HH.dot



PS: I know there are spaces in the name but these are escaped and work properly when executed locally on my portable.
PPS: I'm new to this part of Java io...



Louis Demers eng. www.obzerv.com


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-- Chuck Hill Senior Consultant / VP Development

Practical WebObjects - for developers who want to increase their overall knowledge of WebObjects or who are trying to solve specific problems.
http://www.global-village.net/products/practical_webobjects







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