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<font size="-1"><font face="Verdana">Greetings,<br>
<br>
I've compiled MapServer from the CVS HEAD 4.9-dev (2006-07-28) and
I'm suposing the msIO_getStdoutBufferBytes is not working properly when
used in Java Mapscript. I've written a very simple example to explain
how it happens. Please take a look at it : <br>
<br>
</font></font>
<blockquote>
<pre><font face="Lucida Console" size="-1"> public void doPost(HttpServletRequest req, HttpServletResponse resp) throws ServletException, IOExcept</font></pre>
<pre><font face="Lucida Console" size="-1"> {
PrintWriter p = resp.getWriter();
mapObj map = new mapObj("/home/maps/rs.wms.map");</font></pre>
<pre><font face="Lucida Console" size="-1"> OWSRequest reqOWS = new OWSRequest();
reqOWS.setParameter("SERVICE", "WMS");
reqOWS.setParameter("VERSION", "1.1.0");
reqOWS.setParameter("REQUEST", "GetCapabilities");
</font></pre>
<pre><font face="Lucida Console" size="-1"> mapscript.msIO_installStdoutToBuffer();
map.OWSDispatch(reqOWS);
</font></pre>
<pre><font face="Lucida Console" size="-1"> String contentType = mapscript.msIO_stripStdoutBufferContentType();
byte[] content = mapscript.msIO_getStdoutBufferBytes();
p.print(new String(content));</font></pre>
<pre><font face="Lucida Console" size="-1"> } </font></pre>
</blockquote>
<font face="Verdana" size="-1"><br>
The "byte[] content" stores the result of
msIO_stripStdoutBufferContentType and it has some garbage data at the
end. After the > 0x3E we have an NL 0x0A and finally a EOF 0x00, BUT
the content doesn't stop at this point, there are more data after the
0x00 and the Java Mapscript can "see" it. That's a big problem, because
when this "content" is returned, the resulting XML is corrupted. Please
check this example bellow.</font><font size="-1"><font face="Verdana"><br>
</font></font><font size="-1"><font face="Verdana"><small><font
face="Lucida Console"><br>
</font></small></font></font>
<blockquote>
<pre>000018a0 20 20 20 20 20 20 20 20 20 3c 2f 4c 65 67 65 6e | </Legen|
000018b0 64 55 52 4c 3e 0a 20 20 20 20 20 20 20 20 3c 2f |dURL>. </|
000018c0 53 74 79 6c 65 3e 0a 20 20 20 20 3c 2f 4c 61 79 |Style>. </Lay|
000018d0 65 72 3e 0a 20 20 3c 2f 4c 61 79 65 72 3e 0a 3c |er>. </Layer>.<|
000018e0 2f 43 61 70 61 62 69 6c 69 74 79 3e 0a 3c 2f 57 |/Capability>.</W|
000018f0 4d 54 5f 4d 53 5f 43 61 70 61 62 69 6c 69 74 69 |MT_MS_Capabiliti|
00001900 65 73 3e 0a 00 14 00 00 00 14 00 00 00 14 00 00 |es>.............|
00001910 00 14 00 00 00 14 00 00 00 14 00 00 00 14 00 00 |................|
00001920 00 14 00 00 00 14 00 00 00 14 00 00 00 14 00 |...............|</pre>
</blockquote>
<small><font face="Verdana">Is it a known bug? I'm afraid this kind of
garbage can produce undesirable effects in WMS support. For this
simples example I can "manually" remove it but I'm not sure how to deal
with it in other cases. I'll be greatful if you could give me some
light.</font></small><br>
<br>
<br>
<font size="-1"><font face="Verdana">Best regards,</font></font><br>
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