@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 {
http.authorize();
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 | QueryException ex) {
http.status(SC_BAD_REQUEST, Util.message(ex), restxq);
} catch (final ProcException ex) {
http.status(SC_BAD_REQUEST, Text.INTERRUPTED, 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);
}
}
}
/**
* Checks if the produced content type matches.
*
* @param http http context
* @return result of check
*/
private boolean produces(final HTTPContext http) {
// return true if no type is given
if (produces.isEmpty()) return true;
// check if any combination matches
for (final String pr : http.produces()) {
for (final String p : produces) {
if (MimeTypes.matches(p, pr)) return true;
}
}
return false;
}
/**
* Checks if the consumed content type matches.
*
* @param http http context
* @return result of check
*/
private boolean consumes(final HTTPContext http) {
// return true if no type is given
if (consumes.isEmpty()) return true;
// return true if no content type is specified by the user
final String ct = http.contentType();
if (ct == null) return true;
// check if any combination matches
for (final String c : consumes) {
if (MimeTypes.matches(c, ct)) return true;
}
return false;
}
@Override
public void init(final ServletConfig config) throws ServletException {
super.init(config);
try {
HTTPContext.init(config.getServletContext());
final Enumeration<String> en = config.getInitParameterNames();
while (en.hasMoreElements()) {
String key = en.nextElement().toLowerCase(Locale.ENGLISH);
final String val = config.getInitParameter(key);
if (key.startsWith(Prop.DBPREFIX)) key = key.substring(Prop.DBPREFIX.length());
if (key.equalsIgnoreCase(MainProp.USER[0].toString())) {
user = val;
} else if (key.equalsIgnoreCase(MainProp.PASSWORD[0].toString())) {
pass = val;
}
}
} catch (final IOException ex) {
throw new ServletException(ex);
}
}
@Override
public void init(final ServletConfig config) throws ServletException {
super.init(config);
try {
HTTPContext.init(config.getServletContext());
final Enumeration<String> en = config.getInitParameterNames();
while (en.hasMoreElements()) {
String key = en.nextElement().toLowerCase(Locale.ENGLISH);
final String val = config.getInitParameter(key);
if (key.startsWith(Prop.DBPREFIX)) key = key.substring(Prop.DBPREFIX.length());
if (key.equalsIgnoreCase(StaticOptions.USER.name())) {
username = val;
} else if (key.equalsIgnoreCase(StaticOptions.PASSWORD.name())) {
password = val;
} else if (key.equalsIgnoreCase(StaticOptions.AUTHMETHOD.name())) {
auth = AuthMethod.valueOf(val);
}
}
} catch (final IOException ex) {
throw new ServletException(ex);
}
}
/**
* Binds the annotated variables.
*
* @param http http context
* @param arg argument array
* @throws QueryException query exception
* @throws IOException I/O exception
*/
void bind(final HTTPContext http, final Expr[] arg) throws QueryException, IOException {
// bind variables from segments
for (int s = 0; s < path.size; s++) {
final Matcher m = TEMPLATE.matcher(path.segment[s]);
if (!m.find()) continue;
final QNm qnm = new QNm(token(m.group(1)), context);
bind(qnm, arg, new Atm(http.segment(s)));
}
// cache request body
final String ct = http.contentType();
IOContent body = null;
if (requestBody != null) {
body = cache(http, null);
try {
// bind request body in the correct format
body.name(http.method + IO.XMLSUFFIX);
bind(requestBody, arg, Parser.item(body, context.context.prop, ct));
} catch (final IOException ex) {
error(INPUT_CONV, ex);
}
}
// bind query parameters
final Map<String, String[]> params = http.params();
for (final RestXqParam rxp : queryParams) bind(rxp, arg, params.get(rxp.key));
// bind form parameters
if (!formParams.isEmpty()) {
if (MimeTypes.APP_FORM.equals(ct)) {
// convert parameters encoded in a form
body = cache(http, body);
addParams(body.toString(), params);
}
for (final RestXqParam rxp : formParams) bind(rxp, arg, params.get(rxp.key));
}
// bind header parameters
for (final RestXqParam rxp : headerParams) {
final StringList sl = new StringList();
final Enumeration<?> en = http.req.getHeaders(rxp.key);
while (en.hasMoreElements()) {
for (final String s : en.nextElement().toString().split(", *")) sl.add(s);
}
bind(rxp, arg, sl.toArray());
}
// bind cookie parameters
final Cookie[] ck = http.req.getCookies();
for (final RestXqParam rxp : cookieParams) {
String v = null;
if (ck != null) {
for (final Cookie c : ck) {
if (rxp.key.equals(c.getName())) v = c.getValue();
}
}
if (v == null) bind(rxp, arg);
else bind(rxp, arg, v);
}
}