org.apache.xml.serialize.XMLSerializer problem with UTF-8

[Jim Cobban]

I must be missing something.

I am using org.apache.xml. serialize.XMLSe rializer to save a DOM but I am not
getting non-basic characters converted to UTF-8.

I create Text nodes in the DOM by, for example:

Document doc;
JTextArea textPrompt;
Text newTextNode;
Element descElt;
....
newTextNode = doc.createTextN ode(textPrompt. getText());
descElt.appendC hild(newTextNod e);

The code to serialize the DOM is:

private void saveXml(Documen t document)
{
// rename the existing layout file
new File(fileName). renameTo(new File(fileName + "~"));
// write the document out
OutputFormat format = new OutputFormat(do cument);
format.setInden ting(true);
format.setLineW idth(0);
format.setPrese rveSpace(true);
try {
XMLSerializer serializer;
serializer = new XMLSerializer (
new FileWriter(file Name),
format);
serializer.asDO MSerializer();
serializer.seri alize(document) ;
}
catch (IOException ioe)
{
....
}
}

If I enter a character such as e' (e with acute accent) into the JTextArea
and I look at the XML file using a non-UTF-8-aware editor I see that the e'
has been inserted as a single byte, not as the 2 character UTF-8 escaped
value. If I subsequently try to read the XML file using XERCES it blows up
because of the invalid escape sequence.

How do I get a valid serialization of this DOM into XML using UTF-8?


--
Jim Cobban jcobban@magma.c a
34 Palomino Dr.
Kanata, ON, CANADA
K2M 1M1
+1-613-592-9438

[Soren Kuula]

Re: org.apache.xml. serialize.XMLSe rializer problem with UTF-8

Jim Cobban wrote:
[color=blue]
> I must be missing something.[/color]
[color=blue]
> XMLSerializer serializer;
> serializer = new XMLSerializer (
> new FileWriter(file Name),
> format);
> serializer.asDO MSerializer();
> If I enter a character such as e' (e with acute accent) into the JTextArea
> and I look at the XML file using a non-UTF-8-aware editor I see that the e'
> has been inserted as a single byte, not as the 2 character UTF-8 escaped
> value. If I subsequently try to read the XML file using XERCES it blows up
> because of the invalid escape sequence.
>
> How do I get a valid serialization of this DOM into XML using UTF-8?[/color]

As far as I know it is the Writer responsible for the encoding.

From FileWriter API doc:

public class FileWriter
extends OutputStreamWri ter

Convenience class for writing character files. The constructors of this
class assume that the default character encoding and the default
byte-buffer size are acceptable. To specify these values yourself,
construct an OutputStreamWri ter on a FileOutputStrea m.


- try that.

Soren

--
Fjern de 4 bogstaver i min mailadresse som er indsat for at hindre s...
Remove the 4 letter word meaning "junk mail" in my mail address.

[Jim Cobban]

Re: org.apache.xml. serialize.XMLSe rializer problem with UTF-8


"Soren Kuula" <dongfangspam@b itplanet.net> wrote in message
news:5K7Db.5914 7$jf4.3408968@n ews000.worldonl ine.dk...[color=blue]
>
> As far as I know it is the Writer responsible for the encoding.
>
> From FileWriter API doc:
>
> public class FileWriter
> extends OutputStreamWri ter
>
> Convenience class for writing character files. The constructors of this
> class assume that the default character encoding and the default
> byte-buffer size are acceptable. To specify these values yourself,
> construct an OutputStreamWri ter on a FileOutputStrea m.[/color]

Thank you.

The problem was that I copied the code from one of the examples that came
with Xerces. It was that example which constructed the default FileWriter.
Since their is a version of the XMLSerializer constructor which takes an
OutpuStream and internally constructs a Writer with the correct "utf-8"
encoding, that is the form of the constructor which I needed to use. I
should have read the documentation in more detail rather than trusting that
the example had been written correctly.