Getting error when trying to read file : java.lang.IllegalArgumentException: File /data/testing.txt contains a path separator

[Chandrakar Aravind-rqj386]

Hi,



I am trying to read non-local txt file, but I am getting error:



java.lang.IllegalArgumentException: File /data/testing.txt
contains a path separator



Any one has any idea?



My code is like that:

FileInputStream orifile = openFileInput("/data//samplefile.txt");

BufferedReader bufReader = new BufferedReader(new
FileReader(orifile.getFD()));

I am able to read local file (created on my package).

Arvind


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[Mark Murphy]

Post by Chandrakar Aravind-rqj386
java.lang.IllegalArgumentException: File /data/testing.txt
contains a path separator

You probably don't have a file at /data/testing.txt.

Post by Chandrakar Aravind-rqj386
FileInputStream _orifile_ =
openFileInput("/data//_samplefile_._txt_");

openFileInput() accepts relative paths only. No leading slashes are
allowed. openFileInput() represents files stored in an
application-specific storage area. getFilesDir() will tell you where
this is, IIRC.

[Chandrakar Aravind-rqj386]

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Hi Mark,

Thanks for reply, is there any methods to read non-local file (file
present outside my application specific area).

Arvind

-----Original Message-----
From: android-***@googlegroups.com
[mailto:android-***@googlegroups.com] On Behalf Of Mark Murphy
Sent: Wednesday, December 10, 2008 7:52 PM
To: android-***@googlegroups.com
Subject: [android-developers] Re: Getting error when trying to read file
: java.lang.IllegalArgumentException: File /data/testing.txt contains a
path separator

Post by Chandrakar Aravind-rqj386
java.lang.IllegalArgumentException: File /data/testing.txt
contains a path separator

You probably don't have a file at /data/testing.txt.

Post by Chandrakar Aravind-rqj386
FileInputStream _orifile_ =
openFileInput("/data//_samplefile_._txt_");

openFileInput() accepts relative paths only. No leading slashes are
allowed. openFileInput() represents files stored in an
application-specific storage area. getFilesDir() will tell you where
this is, IIRC.

--
Mark Murphy (a Commons Guy)
http://commonsware.com
_The Busy Coder's Guide to Android Development_ Version 1.9 Available!

[kelly]

You might try just using java.io.File, which works well for me:

File file = new File("/whatever/path/to/file.txt");
try {
InputStream in = new FileInputStream(file);

...
}
catch(Exception ex)
{
...
}

I've noticed in the documentation that openFileInput() is supposed to
be what you use, but I haven't determined if the above is not okay,
and if not, why not. I'm doing this in several places, and it has
never caused a problem.

Post by Chandrakar Aravind-rqj386
Hi Mark,
Thanks for reply, is there any methods to read non-local file (file
present outside my application specific area).
Arvind
-----Original Message-----
Sent: Wednesday, December 10, 2008 7:52 PM
Subject: [android-developers] Re: Getting error when trying to read file
: java.lang.IllegalArgumentException: File /data/testing.txt contains a
path separator

      java.lang.IllegalArgumentException: File /data/testing.txt
contains a path separator

You probably don't have a file at /data/testing.txt.

      FileInputStream _orifile_ =
openFileInput("/data//_samplefile_._txt_");

openFileInput() accepts relative paths only. No leading slashes are
allowed. openFileInput() represents files stored in an
application-specific storage area. getFilesDir() will tell you where
this is, IIRC.
--
Mark Murphy (a Commons Guy)http://commonsware.com
_The Busy Coder's Guide to Android Development_ Version 1.9 Available!

[Mark Murphy]

Post by kelly
File file = new File("/whatever/path/to/file.txt");
try {
InputStream in = new FileInputStream(file);
...
}
catch(Exception ex)
{
...
}

That works, so long as you have read access to whatever it is you're
trying to read. And, so long as you are able to put files wherever it is
you're trying to read them from.

Post by kelly
I've noticed in the documentation that openFileInput() is supposed to
be what you use, but I haven't determined if the above is not okay,
and if not, why not. I'm doing this in several places, and it has
never caused a problem.

openFileInput() gives you a storage spot unique to your application in
the on-board flash. It is not for use for, say, accessing /sdcard.

[kelly]

Ah, that makes sense. What I'm doing with the java.io.File approach is
reading/writing to/from areas on the sd card.

Post by Mark Murphy

Post by kelly
File file = new File("/whatever/path/to/file.txt");
try {
  InputStream in = new FileInputStream(file);
  ...
}
catch(Exception ex)
{
  ...
}

That works, so long as you have read access to whatever it is you're
trying to read. And, so long as you are able to put files wherever it is
you're trying to read them from.

Post by kelly
I've noticed in the documentation that openFileInput() is supposed to
be what you use, but I haven't determined if the above is not okay,
and if not, why not. I'm doing this in several places, and it has
never caused a problem.

openFileInput() gives you a storage spot unique to your application in
the on-board flash. It is not for use for, say, accessing /sdcard.
--
Mark Murphy (a Commons Guy)http://commonsware.com
_The Busy Coder's Guide to Android Development_ Version 1.9 Available!

[e***@gmail.com]

Post by Mark Murphy
openFileInput() gives you a storage spot unique to your application in
the on-board flash. It is not for use for, say, accessing /sdcard.

This brings up a question I have: is there an etiquette for apps
putting stuff on
the sdcard? If there were some app specific storage area on the sdcard like
openFileInput does on the internal memory, it would seemingly help for
namespace collisions and other untidy stuff on the sdcard...

Mike

[Michael]

I noticed that lots of apps have been making a mess of my SD card. So
when I had to store some data there, I made the decision to keep
things cleaner. The path I used is /var/MyProgramName/ and then
various directories below.