@Override
public final void service(final HttpServletRequest req, final HttpServletResponse res)
throws IOException {
final HTTPContext http = new HTTPContext(req, res, this);
final boolean restxq = this instanceof RestXqServlet;
try {
run(http);
http.log("", SC_OK);
} catch (final HTTPException ex) {
http.status(ex.getStatus(), Util.message(ex), restxq);
} catch (final LoginException ex) {
http.status(SC_UNAUTHORIZED, Util.message(ex), restxq);
} catch (final IOException ex) {
http.status(SC_BAD_REQUEST, Util.message(ex), restxq);
} catch (final QueryException ex) {
http.status(SC_BAD_REQUEST, Util.message(ex), restxq);
} catch (final Exception ex) {
final String msg = Util.bug(ex);
Util.errln(msg);
http.status(SC_INTERNAL_SERVER_ERROR, Util.info(UNEXPECTED, msg), restxq);
} finally {
if (Prop.debug) {
Util.outln("_ REQUEST _________________________________" + Prop.NL + req);
final Enumeration<String> en = req.getHeaderNames();
while (en.hasMoreElements()) {
final String key = en.nextElement();
Util.outln(Text.LI + key + Text.COLS + req.getHeader(key));
}
Util.out("_ RESPONSE ________________________________" + Prop.NL + res);
}
http.close();
}
}
/**
* Sets a status and sends an info message.
*
* @param code status code
* @param message info message
* @param error treat as error (use web server standard output)
* @throws IOException I/O exception
*/
public void status(final int code, final String message, final boolean error) throws IOException {
try {
log(message, code);
res.resetBuffer();
if (code == SC_UNAUTHORIZED) res.setHeader(WWW_AUTHENTICATE, BASIC);
if (error && code >= SC_BAD_REQUEST) {
res.sendError(code, message);
} else {
res.setStatus(code);
if (message != null) res.getOutputStream().write(token(message));
}
} catch (final IllegalStateException ex) {
log(Util.message(ex), SC_INTERNAL_SERVER_ERROR);
}
}
/**
* Initializes the database context, based on the initial servlet context. Parses all context
* parameters and passes them on to the database context.
*
* @param sc servlet context
* @throws IOException I/O exception
*/
public static synchronized void init(final ServletContext sc) throws IOException {
// check if HTTP context has already been initialized
if (init) return;
init = true;
// set web application path as home directory and HTTPPATH
final String webapp = sc.getRealPath("/");
Options.setSystem(Prop.PATH, webapp);
Options.setSystem(GlobalOptions.WEBPATH, webapp);
// bind all parameters that start with "org.basex." to system properties
final Enumeration<String> en = sc.getInitParameterNames();
while (en.hasMoreElements()) {
final String key = en.nextElement();
if (!key.startsWith(Prop.DBPREFIX)) continue;
String val = sc.getInitParameter(key);
if (key.endsWith("path") && !new File(val).isAbsolute()) {
// prefix relative path with absolute servlet path
Util.debug(key.toUpperCase(Locale.ENGLISH) + ": " + val);
val = new IOFile(webapp, val).path();
}
Options.setSystem(key, val);
}
// create context, update options
if (context == null) {
context = new Context(false);
} else {
context.globalopts.setSystem();
context.options.setSystem();
}
// start server instance
if (!context.globalopts.get(GlobalOptions.HTTPLOCAL)) new BaseXServer(context);
}