/**
* Generate http request entity from Spring Integration message.
*
* @param requestMessage
* @param method
* @return
*/
private HttpEntity<?> generateRequest(Message<?> requestMessage, HttpMethod method) {
HttpHeaders httpHeaders = new HttpHeaders();
headerMapper.fromHeaders(requestMessage.getHeaders(), httpHeaders);
Map<String, ?> messageHeaders = requestMessage.getHeaders();
for (Entry<String, ?> header : messageHeaders.entrySet()) {
if (!header.getKey().startsWith(CitrusMessageHeaders.PREFIX)
&& !MessageUtils.isSpringInternalHeader(header.getKey())
&& !httpHeaders.containsKey(header.getKey())) {
httpHeaders.add(header.getKey(), header.getValue().toString());
}
}
Object payload = requestMessage.getPayload();
if (httpHeaders.getContentType() == null) {
httpHeaders.setContentType(
MediaType.parseMediaType(
contentType.contains("charset") ? contentType : contentType + ";charset=" + charset));
}
if (HttpMethod.POST.equals(method) || HttpMethod.PUT.equals(method)) {
return new HttpEntity<Object>(payload, httpHeaders);
}
return new HttpEntity<Object>(httpHeaders);
}
/**
* Message headers consist of standard HTTP message headers and custom headers. This method
* assumes that all header entries that were not initially mapped by header mapper implementations
* are custom headers.
*
* @param httpHeaders all message headers in their pre nature.
* @param mappedHeaders the previously mapped header entries (all standard headers).
* @return
*/
private Map<String, String> getCustomHeaders(
HttpHeaders httpHeaders, Map<String, ?> mappedHeaders) {
Map<String, String> customHeaders = new HashMap<String, String>();
for (Entry<String, List<String>> header : httpHeaders.entrySet()) {
if (!mappedHeaders.containsKey(header.getKey())) {
customHeaders.put(
header.getKey(), StringUtils.collectionToCommaDelimitedString(header.getValue()));
}
}
return customHeaders;
}
/**
* Handles requests with message handler implementation. Previously sets Http request method as
* header parameter.
*
* @param method
* @param requestEntity
* @return
*/
private ResponseEntity<String> handleRequestInternal(
HttpMethod method, HttpEntity<String> requestEntity) {
Map<String, ?> httpRequestHeaders = headerMapper.toHeaders(requestEntity.getHeaders());
Map<String, String> customHeaders = new HashMap<String, String>();
for (Entry<String, List<String>> header : requestEntity.getHeaders().entrySet()) {
if (!httpRequestHeaders.containsKey(header.getKey())) {
customHeaders.put(
header.getKey(), StringUtils.collectionToCommaDelimitedString(header.getValue()));
}
}
HttpServletRequest request =
((ServletRequestAttributes) RequestContextHolder.getRequestAttributes()).getRequest();
UrlPathHelper pathHelper = new UrlPathHelper();
customHeaders.put(CitrusHttpMessageHeaders.HTTP_REQUEST_URI, pathHelper.getRequestUri(request));
customHeaders.put(
CitrusHttpMessageHeaders.HTTP_CONTEXT_PATH, pathHelper.getContextPath(request));
String queryParams = pathHelper.getOriginatingQueryString(request);
customHeaders.put(
CitrusHttpMessageHeaders.HTTP_QUERY_PARAMS, queryParams != null ? queryParams : "");
customHeaders.put(CitrusHttpMessageHeaders.HTTP_REQUEST_METHOD, method.toString());
Message<?> response =
messageHandler.handleMessage(
MessageBuilder.withPayload(requestEntity.getBody())
.copyHeaders(convertHeaderTypes(httpRequestHeaders))
.copyHeaders(customHeaders)
.build());
return generateResponse(response);
}
/**
* Checks for collection typed header values and convert them to comma delimited String. We need
* this for further header processing e.g when forwarding headers to JMS queues.
*
* @param headers the http request headers.
*/
private Map<String, Object> convertHeaderTypes(Map<String, ?> headers) {
Map<String, Object> convertedHeaders = new HashMap<String, Object>();
for (Entry<String, ?> header : headers.entrySet()) {
if (header.getValue() instanceof Collection<?>) {
Collection<?> value = (Collection<?>) header.getValue();
convertedHeaders.put(header.getKey(), StringUtils.collectionToCommaDelimitedString(value));
} else if (header.getValue() instanceof MediaType) {
convertedHeaders.put(header.getKey(), header.getValue().toString());
} else {
convertedHeaders.put(header.getKey(), header.getValue());
}
}
return convertedHeaders;
}
/**
* Generates the Http response message from given Spring Integration message.
*
* @param responseMessage message received from the message handler
* @return an HTTP entity as response
*/
private ResponseEntity<String> generateResponse(Message<?> responseMessage) {
if (responseMessage == null) {
return new ResponseEntity<String>(HttpStatus.OK);
}
HttpHeaders httpHeaders = new HttpHeaders();
headerMapper.fromHeaders(responseMessage.getHeaders(), httpHeaders);
Map<String, ?> messageHeaders = responseMessage.getHeaders();
for (Entry<String, ?> header : messageHeaders.entrySet()) {
if (!header.getKey().startsWith(CitrusMessageHeaders.PREFIX)
&& !MessageUtils.isSpringInternalHeader(header.getKey())
&& !httpHeaders.containsKey(header.getKey())) {
httpHeaders.add(header.getKey(), header.getValue().toString());
}
}
if (httpHeaders.getContentType() == null) {
httpHeaders.setContentType(
MediaType.parseMediaType(
contentType.contains("charset") ? contentType : contentType + ";charset=" + charset));
}
HttpStatus status = HttpStatus.OK;
if (responseMessage.getHeaders().containsKey(CitrusHttpMessageHeaders.HTTP_STATUS_CODE)) {
status =
HttpStatus.valueOf(
Integer.valueOf(
responseMessage
.getHeaders()
.get(CitrusHttpMessageHeaders.HTTP_STATUS_CODE)
.toString()));
}
responseCache =
new ResponseEntity<String>(responseMessage.getPayload().toString(), httpHeaders, status);
return responseCache;
}
