/**
* Remove unwanted headers from the given header map.
*
* @param headers Header map
* @param nHttpConfiguration NHttp transporter base configurations
*/
private void removeUnwantedHeadersFromHeaderMap(
Map headers, NHttpConfiguration nHttpConfiguration) {
Iterator iter = headers.keySet().iterator();
while (iter.hasNext()) {
String headerName = (String) iter.next();
if (HTTP.CONN_DIRECTIVE.equalsIgnoreCase(headerName)
|| HTTP.TRANSFER_ENCODING.equalsIgnoreCase(headerName)
|| HTTP.CONTENT_TYPE.equalsIgnoreCase(headerName)
|| HTTP.CONTENT_LEN.equalsIgnoreCase(headerName)) {
iter.remove();
}
if (HTTP.SERVER_HEADER.equalsIgnoreCase(headerName)
&& !nHttpConfiguration.isPreserveHttpHeader(HTTP.SERVER_HEADER)) {
iter.remove();
}
if (HTTP.USER_AGENT.equalsIgnoreCase(headerName)
&& !nHttpConfiguration.isPreserveHttpHeader(HTTP.USER_AGENT)) {
iter.remove();
}
if (HTTP.DATE_HEADER.equalsIgnoreCase(headerName)
&& !nHttpConfiguration.isPreserveHttpHeader(HTTP.DATE_HEADER)) {
iter.remove();
}
}
}
/**
* Add the given headers to the given HTTP request.
*
* @param httpRequest the request to add the headers to
* @param headers the headers to add
*/
static void addHeaders(HttpUriRequest httpRequest, HttpHeaders headers) {
for (Map.Entry<String, List<String>> entry : headers.entrySet()) {
String headerName = entry.getKey();
if (HttpHeaders.COOKIE.equalsIgnoreCase(headerName)) { // RFC 6265
String headerValue = StringUtils.collectionToDelimitedString(entry.getValue(), "; ");
httpRequest.addHeader(headerName, headerValue);
} else if (!HTTP.CONTENT_LEN.equalsIgnoreCase(headerName)
&& !HTTP.TRANSFER_ENCODING.equalsIgnoreCase(headerName)) {
for (String headerValue : entry.getValue()) {
httpRequest.addHeader(headerName, headerValue);
}
}
}
}
/**
* Extract the content length from the incoming message
*
* @param msgContext current MessageContext
* @return the length of the message
*/
private int extractContentLength(MessageContext msgContext) {
Map headers = (Map) msgContext.getProperty(MessageContext.TRANSPORT_HEADERS);
if (headers == null || headers.isEmpty()) {
return -1;
}
for (Object o : headers.keySet()) {
String headerName = (String) o;
if (HTTP.CONTENT_LEN.equalsIgnoreCase(headerName)) {
Object value = headers.get(headerName);
if (value != null && value instanceof String) {
try {
return Integer.parseInt((String) value);
} catch (NumberFormatException e) {
return -1;
}
}
}
}
return -1;
}