public void appendHead(Response res) throws IOException {
if (log.isDebugEnabled())
log.debug("COMMIT sending headers " + res + " " + res.getMimeHeaders());
C2BConverter c2b = mc.getConverter();
outputMsg.reset();
outputMsg.appendByte(AjpConstants.JK_AJP13_SEND_HEADERS);
outputMsg.appendInt(res.getStatus());
String message = null;
if (org.apache.coyote.Constants.USE_CUSTOM_STATUS_MSG_IN_HEADER
&& HttpMessages.isSafeInHttpHeader(res.getMessage())) {
message = res.getMessage();
}
if (message == null) {
message = HttpMessages.getMessage(res.getStatus());
}
if (message == null) {
// mod_jk + httpd 2.x fails with a null status message - bug 45026
message = Integer.toString(res.getStatus());
}
tempMB.setString(message);
c2b.convert(tempMB);
outputMsg.appendBytes(tempMB);
// XXX add headers
MimeHeaders headers = res.getMimeHeaders();
String contentType = res.getContentType();
if (contentType != null) {
headers.setValue("Content-Type").setString(contentType);
}
String contentLanguage = res.getContentLanguage();
if (contentLanguage != null) {
headers.setValue("Content-Language").setString(contentLanguage);
}
long contentLength = res.getContentLengthLong();
if (contentLength >= 0) {
headers.setValue("Content-Length").setLong(contentLength);
}
int numHeaders = headers.size();
outputMsg.appendInt(numHeaders);
for (int i = 0; i < numHeaders; i++) {
MessageBytes hN = headers.getName(i);
// no header to sc conversion - there's little benefit
// on this direction
outputMsg.appendBytes(hN);
MessageBytes hV = headers.getValue(i);
outputMsg.appendBytes(hV);
}
mc.getSource().send(outputMsg, mc);
}
/**
* Has the specified header been set already in this response?
*
* @param name Name of the header to check
*/
@Override
public boolean containsHeader(String name) {
// Need special handling for Content-Type and Content-Length due to
// special handling of these in coyoteResponse
char cc = name.charAt(0);
if (cc == 'C' || cc == 'c') {
if (name.equalsIgnoreCase("Content-Type")) {
// Will return null if this has not been set
return (coyoteResponse.getContentType() != null);
}
if (name.equalsIgnoreCase("Content-Length")) {
// -1 means not known and is not sent to client
return (coyoteResponse.getContentLengthLong() != -1);
}
}
return coyoteResponse.containsHeader(name);
}
/**
* Close the output buffer. This tries to calculate the response size if the response has not been
* committed yet.
*
* @throws IOException An underlying IOException occurred
*/
@Override
public void close() throws IOException {
if (closed) return;
if (suspended) return;
if ((!coyoteResponse.isCommitted()) && (coyoteResponse.getContentLengthLong() == -1)) {
// If this didn't cause a commit of the response, the final content
// length can be calculated
if (!coyoteResponse.isCommitted()) {
coyoteResponse.setContentLength(bb.getLength());
}
}
doFlush(false);
closed = true;
coyoteResponse.finish();
}