public static void invokeRequest(Valve pipelineHead, Request request)
throws ServletException, IOException {
pipelineHead.invoke(request, request.getResponse());
// StandardHostValve calls request.getSession(false) on way out, so we will too
request.getSession(false);
request.recycle();
}
private void doInvoke(Request request, Response response, boolean chaining)
throws IOException, ServletException {
if ((valves.length > 0) || (basic != null)) {
// Set the status so that if there are no valves (other than the
// basic one), the basic valve's request processing logic will
// be invoked
int status = GlassFishValve.INVOKE_NEXT;
// Iterate over all the valves in the pipeline and invoke
// each valve's processing logic and then move onto to the
// next valve in the pipeline only if the previous valve indicated
// that the pipeline should proceed.
int i;
for (i = 0; i < valves.length; i++) {
Request req = request;
Response resp = response;
if (chaining) {
req = getRequest(request);
resp = getResponse(request, response);
}
status = valves[i].invoke(req, resp);
if (status != GlassFishValve.INVOKE_NEXT) break;
}
// Save a reference to the valve[], to ensure that postInvoke()
// is invoked on the original valve[], in case a valve gets added
// or removed during the invocation of the basic valve (e.g.,
// in case access logging is enabled or disabled by some kind of
// admin servlet), in which case the indices used for postInvoke
// invocations below would be off
GlassFishValve[] savedValves = valves;
// Invoke the basic valve's request processing and post-request
// logic only if the pipeline was not aborted (i.e. no valve
// returned END_PIPELINE).
// In addition, the basic valve needs to be invoked by the
// pipeline only if no Tomcat-style valves have been added.
// Otherwise, it will be invoked by the last Tomcat-style valve
// directly.
if (status == GlassFishValve.INVOKE_NEXT) {
if (firstTcValve != null) {
firstTcValve.invoke(
(org.apache.catalina.connector.Request) request,
(org.apache.catalina.connector.Response) response);
} else if (basic != null) {
Request req = request;
Response resp = response;
if (chaining) {
req = getRequest(request);
resp = getResponse(request, response);
}
basic.invoke(req, resp);
basic.postInvoke(req, resp);
}
}
// Invoke the post-request processing logic only on those valves
// that returned a status of INVOKE_NEXT
for (int j = i - 1; j >= 0; j--) {
Request req = request;
Response resp = response;
if (chaining) {
req = getRequest(request);
resp = getResponse(request, response);
}
savedValves[j].postInvoke(req, resp);
}
savedValves = null;
} else {
throw new ServletException(rb.getString(NO_VALVES_IN_PIPELINE_EXCEPTION));
}
// Calls the protocol handler's init method if the request is marked to be upgraded
if (request instanceof org.apache.catalina.connector.Request) {
org.apache.catalina.connector.Request req = (org.apache.catalina.connector.Request) request;
if (req.isUpgrade()) {
HttpUpgradeHandler handler = req.getHttpUpgradeHandler();
if (handler != null) {
WebConnectionImpl wc =
new WebConnectionImpl(
req.getInputStream(),
((org.apache.catalina.connector.Response) req.getResponse()).getOutputStream());
wc.setRequest(req);
req.setWebConnection(wc);
if (response instanceof org.apache.catalina.connector.Response) {
wc.setResponse((org.apache.catalina.connector.Response) response);
}
Context context = req.getContext();
try {
context.fireContainerEvent(ContainerEvent.BEFORE_UPGRADE_HANDLER_INITIALIZED, handler);
handler.init(wc);
} finally {
context.fireContainerEvent(ContainerEvent.AFTER_UPGRADE_HANDLER_INITIALIZED, handler);
}
} else {
log.log(Level.SEVERE, PROTOCOL_HANDLER_REQUIRED_EXCEPTION);
}
req.setUpgrade(false);
}
}
}
