@Override
protected void handleOnException(
Throwable ex, HttpServletRequest request, HttpServletResponse response) {
super.handleOnException(ex, request, response);
Logger.getLogger(ForwarderServlet.class.getName())
.log(
Level.WARNING,
"Error when forwarding request: {0} {1}",
new Object[] {ex.getMessage(), Arrays.toString(ex.getStackTrace())});
}
/** @return true if the request was served. */
private boolean proxyRemoteUrl(
HttpServletRequest req, HttpServletResponse resp, final URL mappedURL, boolean failEarlyOn404)
throws IOException, ServletException, UnknownHostException {
ProxyServlet proxy = new RemoteURLProxyServlet(mappedURL, failEarlyOn404);
proxy.init(getServletConfig());
try {
traceRequest(req);
try {
proxy.service(req, resp);
} catch (NotFoundException ex) {
// This exception is only thrown in the "fail early on 404" case, in which case
// no output was written and we didn't serve the request.
return false;
}
} finally {
proxy.destroy();
}
// We served this request
return true;
}
@Override
public void init(ServletConfig config) throws ServletException {
super.init(config);
}