/** Initializes the servlet. */
@Override
public void init(ServletConfig config) throws ServletException {
super.init(config);
// It seems that if the servlet fails to initialize the first time,
// init can be called again (it has been observed in Tomcat log files
// but not explained).
if (initAttempted) {
// This happens - the query and update servlets share this class
// log.info("Re-initialization of servlet attempted") ;
return;
}
initAttempted = true;
servletConfig = config;
// Modify the (Jena) global filemanager to include loading by servlet context
FileManager fileManager = FileManager.get();
if (config != null) {
servletContext = config.getServletContext();
fileManager.addLocator(new LocatorServletContext(servletContext));
}
printName = config.getServletName();
String configURI = config.getInitParameter(Joseki.configurationFileProperty);
servletEnv();
try {
Dispatcher.initServiceRegistry(fileManager, configURI);
} catch (ConfigurationErrorException confEx) {
throw new ServletException("Joseki configuration error", confEx);
}
}
protected void doCommon(HttpServletRequest httpRequest, HttpServletResponse httpResponse) {
try {
if (log.isDebugEnabled()) log.debug(HttpUtils.fmtRequest(httpRequest));
// getRequestURL is the exact string used by the caller in the request.
// Internally, it's the "request URI" that names the service
// String requestURL = httpRequest.getRequestURL().toString() ;
String uri = httpRequest.getRequestURI();
if (uri.length() > urlLimit) {
httpResponse.setStatus(HttpServletResponse.SC_REQUEST_URI_TOO_LONG);
return;
}
String serviceURI = chooseServiceURI(uri, httpRequest);
serviceURI = Service.canonical(serviceURI);
String sender = httpRequest.getRemoteAddr();
log.info("[" + sender + "] Service URI = <" + serviceURI + ">");
// MIME-Type
String contentType = httpRequest.getContentType();
// if ( Joseki.contentSPARQLUpdate.equals(contentType) ||
// Joseki.contentSPARQLUpdate_X.equals(contentType) )
// {}
Request request = setupRequest(serviceURI, httpRequest);
request.setParam(Joseki.VERB, httpRequest.getMethod());
Response response = new ResponseHttp(request, httpRequest, httpResponse);
Dispatcher.dispatch(serviceURI, request, response);
} catch (Exception ex) {
try {
log.warn("Internal server error", ex);
// httpResponse.setStatus(HttpServletResponse.SC_INTERNAL_SERVER_ERROR) ;
// httpResponse.flushBuffer() ;
// httpResponse.getWriter().close() ;
httpResponse.sendError(HttpServletResponse.SC_INTERNAL_SERVER_ERROR);
} catch (Exception e) {
}
}
}
