@Override
public void route(
MutableHttpServletRequest servletRequest, MutableHttpServletResponse servletResponse)
throws IOException, ServletException, URISyntaxException {
DestinationLocation location = null;
if (!StringUtilities.isBlank(defaultDst)) {
servletRequest.addDestination(defaultDst, servletRequest.getRequestURI(), -1);
}
RouteDestination routingDestination = servletRequest.getDestination();
String rootPath = "";
if (routingDestination != null) {
Destination configDestinationElement =
destinations.get(routingDestination.getDestinationId());
if (configDestinationElement == null) {
LOG.warn(
"Invalid routing destination specified: "
+ routingDestination.getDestinationId()
+ " for domain: "
+ domain.getId());
((HttpServletResponse) servletResponse).setStatus(HttpStatusCode.NOT_FOUND.intValue());
} else {
location =
locationBuilder.build(
configDestinationElement, routingDestination.getUri(), servletRequest);
rootPath = configDestinationElement.getRootPath();
}
}
if (location != null) {
// According to the Java 6 javadocs the routeDestination passed into getContext:
// "The given path [routeDestination] must begin with /, is interpreted relative to the
// server's document root
// and is matched against the context roots of other web applications hosted on this
// container."
final ServletContext targetContext = context.getContext(location.getUri().toString());
if (targetContext != null) {
// Capture this for Location header processing
final HttpServletRequest originalRequest = (HttpServletRequest) servletRequest.getRequest();
String uri =
new DispatchPathBuilder(location.getUri().getPath(), targetContext.getContextPath())
.build();
final RequestDispatcher dispatcher = targetContext.getRequestDispatcher(uri);
servletRequest.setRequestUrl(new StringBuffer(location.getUrl().toExternalForm()));
servletRequest.setRequestUri(location.getUri().getPath());
requestHeaderService.setVia(servletRequest);
requestHeaderService.setXForwardedFor(servletRequest);
if (dispatcher != null) {
LOG.debug("Attempting to route to " + location.getUri());
LOG.debug("Request URL: " + ((HttpServletRequest) servletRequest).getRequestURL());
LOG.debug("Request URI: " + ((HttpServletRequest) servletRequest).getRequestURI());
LOG.debug("Context path = " + targetContext.getContextPath());
final long startTime = System.currentTimeMillis();
try {
reportingService.incrementRequestCount(routingDestination.getDestinationId());
dispatcher.forward(servletRequest, servletResponse);
final long stopTime = System.currentTimeMillis();
reportingService.recordServiceResponse(
routingDestination.getDestinationId(),
servletResponse.getStatus(),
(stopTime - startTime));
responseHeaderService.fixLocationHeader(
originalRequest,
servletResponse,
routingDestination,
location.getUri().toString(),
rootPath);
} catch (ClientHandlerException e) {
if (e.getCause() instanceof ReadLimitReachedException) {
LOG.error("Error reading request content", e);
servletResponse.sendError(
HttpStatusCode.REQUEST_ENTITY_TOO_LARGE.intValue(),
"Error reading request content");
servletResponse.setLastException(e);
} else {
LOG.error("Connection Refused to " + location.getUri() + " " + e.getMessage(), e);
((HttpServletResponse) servletResponse)
.setStatus(HttpStatusCode.SERVICE_UNAVAIL.intValue());
}
}
}
}
}
}
