I've run into an issue downloading content using the OpenCMIS 0.4.0 build
running under WL 10.3.5. Our code works ok under Tomcat v7 and also when unit
tested in Eclipse Helios. But under WL 10.3.5, the OpenCMIS code path that gets
invoked for downloading content (through CmisObject.getContentStream())
eventually makes an HTTP POST request using the HttpUtils.invoke() method. In
that class in the 0.4.0 code base, there's a line of code (line 167) that looks
like this:
OutputStream out = new BufferedOutputStream(conn.getOutputStream(),
BUFFER_SIZE);
In the 0.4.0 code base, the value for BUFFER_SIZE is set to this:
private static final int BUFFER_SIZE = 2 * 1024 * 1024;
The code then sets HTTP 1.1 chunking with this fragment of code:
// send data
if (writer != null) {
conn.setChunkedStreamingMode(BUFFER_SIZE);
OutputStream out = new
BufferedOutputStream(conn.getOutputStream(), BUFFER_SIZE);
writer.write(out);
out.flush();
}
Under WL 10.3, trying to do a POST with this big a buffer causes the write to
fail with an error message that the buffer size must be < 64kb in size. This
code worked ok under WL 9 but doesn't work under 10.3.5. Apparently there's
some new throttling policy on max buffer size that is given to applications. We
changed the definition of BUFFER_SIZE to be a bit less than 64k and this solved
the issue.
Seems like this change should be put back into the mainstream code base? If
this seems right, I'll post a bug on this and you guys can fix it in 0.5.0.
thx,
g
---
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George Florentine
VP, Engineering
+1 (303) 542-2173 | Office
+1 (303) 669-8628 | Cell
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http://www.flatironssolutions.com<http://www.flatironssolutions.com/>
