private void sendUsingOutputStream(MessageContext msgContext) throws AxisFault {
OMOutputFormat format = NhttpUtil.getOMOutputFormat(msgContext);
MessageFormatter messageFormatter =
MessageFormatterDecoratorFactory.createMessageFormatterDecorator(msgContext);
OutputStream out = (OutputStream) msgContext.getProperty(MessageContext.TRANSPORT_OUT);
if (msgContext.isServerSide()) {
OutTransportInfo transportInfo =
(OutTransportInfo) msgContext.getProperty(Constants.OUT_TRANSPORT_INFO);
if (transportInfo != null) {
transportInfo.setContentType(
messageFormatter.getContentType(msgContext, format, msgContext.getSoapAction()));
} else {
throw new AxisFault(Constants.OUT_TRANSPORT_INFO + " has not been set");
}
}
try {
messageFormatter.writeTo(msgContext, format, out, false);
out.close();
} catch (IOException e) {
handleException("IO Error sending response message", e);
}
}
/**
* Write the stream to a temporary storage and calculate the content length
*
* @param entity HTTPEntity
* @param messageFormatter message formatter
* @param msgContext current message context
* @param format message format
* @throws IOException if an exception occurred while writing data
*/
private void setStreamAsTempData(
BasicHttpEntity entity,
MessageFormatter messageFormatter,
MessageContext msgContext,
OMOutputFormat format)
throws IOException {
TemporaryData serialized = new TemporaryData(256, 4096, "http-nio_", ".dat");
OutputStream out = serialized.getOutputStream();
try {
messageFormatter.writeTo(msgContext, format, out, true);
} finally {
out.close();
}
msgContext.setProperty(NhttpConstants.SERIALIZED_BYTES, serialized);
entity.setContentLength(serialized.getLength());
}
/**
* Send the passed in response message, asynchronously
*
* @param msgContext the message context to be sent
* @throws AxisFault on error
*/
private void sendAsyncResponse(MessageContext msgContext) throws AxisFault {
int contentLength = extractContentLength(msgContext);
// remove unwanted HTTP headers (if any from the current message)
removeUnwantedHeaders(msgContext);
Map transportHeaders = (Map) msgContext.getProperty(MessageContext.TRANSPORT_HEADERS);
ServerWorker worker = (ServerWorker) msgContext.getProperty(Constants.OUT_TRANSPORT_INFO);
HttpResponse response = worker.getResponse();
OMOutputFormat format = NhttpUtil.getOMOutputFormat(msgContext);
MessageFormatter messageFormatter =
MessageFormatterDecoratorFactory.createMessageFormatterDecorator(msgContext);
Boolean noEntityBody = (Boolean) msgContext.getProperty(NhttpConstants.NO_ENTITY_BODY);
if (noEntityBody == null || Boolean.FALSE == noEntityBody) {
response.setHeader(
HTTP.CONTENT_TYPE,
messageFormatter.getContentType(msgContext, format, msgContext.getSoapAction()));
} else if (Boolean.TRUE == noEntityBody) {
((BasicHttpEntity) response.getEntity()).setChunked(false);
((BasicHttpEntity) response.getEntity()).setContentLength(0);
// Since HTTP HEAD request doesn't contain message body content length of the is set to be 0.
// To handle
// content length 0 while serving head method, content length of the backend response is set
// as the content
// as synapse cannot calculate content length without providing message body.
if (transportHeaders.get(NhttpConstants.HTTP_REQUEST_METHOD) != null
&& NhttpConstants.HTTP_HEAD.equals(
transportHeaders.get(NhttpConstants.HTTP_REQUEST_METHOD))
&& transportHeaders.get(NhttpConstants.ORIGINAL_CONTENT_LEN) != null) {
((BasicHttpEntity) response.getEntity())
.setContentLength(
Long.parseLong(
String.valueOf(transportHeaders.get(NhttpConstants.ORIGINAL_CONTENT_LEN))));
transportHeaders.remove(NhttpConstants.ORIGINAL_CONTENT_LEN);
transportHeaders.remove(NhttpConstants.HTTP_REQUEST_METHOD);
}
}
response.setStatusCode(determineHttpStatusCode(msgContext, response));
// Override the Standard Reason Phrase
if (msgContext.getProperty(NhttpConstants.HTTP_REASON_PHRASE) != null
&& !msgContext.getProperty(NhttpConstants.HTTP_REASON_PHRASE).equals("")) {
response.setReasonPhrase(
msgContext.getProperty(NhttpConstants.HTTP_REASON_PHRASE).toString());
}
// set any transport headers
if (transportHeaders != null && !transportHeaders.values().isEmpty()) {
Iterator iter = transportHeaders.keySet().iterator();
while (iter.hasNext()) {
Object header = iter.next();
Object value = transportHeaders.get(header);
if (value != null && header instanceof String && value instanceof String) {
response.addHeader((String) header, (String) value);
String excessProp = NhttpConstants.EXCESS_TRANSPORT_HEADERS;
Map map = (Map) msgContext.getProperty(excessProp);
if (map != null && map.get(header) != null) {
log.debug(
"Number of excess values for "
+ header
+ " header is : "
+ ((Collection) (map.get(header))).size());
for (Iterator iterator = map.keySet().iterator(); iterator.hasNext(); ) {
String key = (String) iterator.next();
for (String excessVal : (Collection<String>) map.get(key)) {
if (header.equals(key)) {
response.addHeader((String) header, (String) excessVal);
}
}
}
}
}
}
}
boolean forceContentLength =
msgContext.isPropertyTrue(NhttpConstants.FORCE_HTTP_CONTENT_LENGTH);
boolean forceContentLengthCopy =
msgContext.isPropertyTrue(NhttpConstants.COPY_CONTENT_LENGTH_FROM_INCOMING);
BasicHttpEntity entity = (BasicHttpEntity) response.getEntity();
MetricsCollector lstMetrics = worker.getServiceHandler().getMetrics();
try {
if (forceContentLength) {
entity.setChunked(false);
if (forceContentLengthCopy && contentLength > 0) {
entity.setContentLength(contentLength);
} else {
setStreamAsTempData(entity, messageFormatter, msgContext, format);
}
}
worker.getServiceHandler().commitResponse(worker.getConn(), response);
lstMetrics.reportResponseCode(response.getStatusLine().getStatusCode());
OutputStream out = worker.getOutputStream();
/*
* if this is a dummy message to handle http 202 case with non-blocking IO
* write an empty byte array as body
*/
if (msgContext.isPropertyTrue(NhttpConstants.SC_ACCEPTED) || Boolean.TRUE == noEntityBody) {
out.write(new byte[0]);
} else {
if (forceContentLength) {
if (forceContentLengthCopy && contentLength > 0) {
messageFormatter.writeTo(msgContext, format, out, false);
} else {
writeMessageFromTempData(out, msgContext);
}
} else {
messageFormatter.writeTo(msgContext, format, out, false);
}
}
out.close();
if (lstMetrics != null) {
lstMetrics.incrementMessagesSent();
}
} catch (ProtocolException e) {
log.error(e + " (Synapse may be trying to send an exact response more than once )");
} catch (HttpException e) {
if (lstMetrics != null) {
lstMetrics.incrementFaultsSending();
}
handleException(
"Unexpected HTTP protocol error sending response to : " + worker.getRemoteAddress(), e);
} catch (ConnectionClosedException e) {
if (lstMetrics != null) {
lstMetrics.incrementFaultsSending();
}
log.warn("Connection closed by client : " + worker.getRemoteAddress());
} catch (IllegalStateException e) {
if (lstMetrics != null) {
lstMetrics.incrementFaultsSending();
}
log.warn("Connection closed by client : " + worker.getRemoteAddress());
} catch (IOException e) {
if (lstMetrics != null) {
lstMetrics.incrementFaultsSending();
}
handleException("IO Error sending response message to : " + worker.getRemoteAddress(), e);
} catch (Exception e) {
if (lstMetrics != null) {
lstMetrics.incrementFaultsSending();
}
handleException(
"General Error sending response message to : " + worker.getRemoteAddress(), e);
}
InputStream is = worker.getIs();
if (is != null) {
try {
is.close();
} catch (IOException ignore) {
}
}
}
