Re: Brain cramp: reading an IFS file from program running on PC

Hi David,

Yep, sort of. In your case - cross platform - it's only because a
certain method in IFSTextFileInputStream does it for you.

Or doesn't do, in this case.

From the IFSTextFileInputStream javadoc I saw, which was for V5R1, the documentation for:

public java.lang.String read(int length)

is the only place I saw CCSID or conversion mentioned.

I wouldn't be surprised at all, in fact I would expect, that the
"properties" file doesn't load properly even using Java on the AS/400.
If it does, it's a convenience IBM decided to supply.

Using the IFSFileInputStream probably won't work running
on the 400 (without my modification) ... but I do know that using
a normal FileInputStream does work on the 400. I use it all the
time.

What I meant by the above was that I wouldn't expect a file using an
encoding other than (effectively) ISO 8859-1 to work on any system, given
the expectations documented in the Properties class.

From another mail:

Oddly enough, when Properties loads the InputStream ...
it creates a reader internally. You would think there
should be a way to load properties passing in a Reader
instead of an InputStream.

There is, as of Java 6.


Joe Sam

Joe Sam Shirah - http://www.conceptgo.com
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----- Original Message ----- From: "David Gibbs" <david@xxxxxxxxxxxx>
To: "Java Programming on and around the iSeries / AS400"
<java400-l@xxxxxxxxxxxx>
Sent: Monday, May 04, 2009 5:17 PM
Subject: Re: Brain cramp: reading an IFS file from program running on PC

Joe Sam Shirah wrote:

This is what I assumed the IFSTextFileInputStream class would do.
Reading
from a text file in Java should convert from >EBCDIC to Unicode
automatically.

Yep, sort of. In your case - cross platform - it's only because a
certain method in IFSTextFileInputStream does it for you.

Or doesn't do, in this case.

I'm 95% sure it DOES do that ... but I just can't figure out what I'm
doing wrong.

You're making some invalid assumptions.

True ... the assumption was that the code worked. The problem was that
there is clearly a bug in the IFSTextFileInputStream class.

After a bit of digging I was able to correct problem and will be
submitting a correction to the JT400 project.

I added the following method to IFSTextFileInputStream ...

----------
public int read(byte[] b) throws IOException {

String input = read(b.

byte[] inputBytes = input.getBytes();

int inputLength = input.length();

System.arraycopy(inputBytes, 0, b, 0, inputLength);

return inputLength;
}
----------

I wouldn't be surprised at all, in fact I would expect, that the
"properties" file doesn't load properly even using Java on the AS/400.
If
it does, it's a convenience IBM decided to supply.

Using the IFSFileInputStream probably won't work running on the 400
(without my modification) ... but I do know that using a normal
FileInputStream does work on the 400. I use it all the time.

david