/** Saves the displayed text. */
private void save() {
final BaseXFileChooser fc =
new BaseXFileChooser(SAVE_AS, gui.gopts.get(GUIOptions.WORKPATH), gui).suffix(IO.XMLSUFFIX);
final IO file = fc.select(Mode.FSAVE);
if (file == null) return;
gui.gopts.set(GUIOptions.WORKPATH, file.path());
gui.cursor(CURSORWAIT, true);
final MainOptions opts = gui.context.options;
final int mh = opts.get(MainOptions.MAXHITS);
opts.set(MainOptions.MAXHITS, -1);
opts.set(MainOptions.CACHEQUERY, false);
try (final PrintOutput out = new PrintOutput(file.toString())) {
if (cmd != null) {
cmd.execute(gui.context, out);
} else if (ns != null) {
ns.serialize(Serializer.get(out));
} else {
final byte[] txt = text.getText();
for (final byte t : txt) if (t < 0 || t > ' ' || ws(t)) out.write(t);
}
} catch (final IOException ex) {
BaseXDialog.error(gui, Util.info(FILE_NOT_SAVED_X, file));
} finally {
opts.set(MainOptions.MAXHITS, mh);
opts.set(MainOptions.CACHEQUERY, true);
gui.cursor(CURSORARROW, true);
}
}
/**
* Serializes the specified nodes.
*
* @param n nodes to display
*/
private void setText(final DBNodes n) {
if (visible()) {
try {
final ArrayOutput ao = new ArrayOutput();
ao.setLimit(gui.gopts.get(GUIOptions.MAXTEXT));
if (n != null) n.serialize(Serializer.get(ao));
setText(ao);
cmd = null;
ns = ao.finished() ? n : null;
} catch (final IOException ex) {
Util.debug(ex);
}
} else {
home.setEnabled(gui.context.data() != null);
}
}
/**
* Evaluates the specified function and creates a response.
*
* @throws Exception exception (including unexpected ones)
*/
void create() throws Exception {
// bind variables
final StaticFunc sf = function.function;
final Expr[] args = new Expr[sf.args.length];
function.bind(http, args, error);
// wrap function with a function call
final MainModule mm = new MainModule(sf, args);
// assign main module and http context and register process
query.mainModule(mm);
query.http(http);
query.context.register(query);
String redirect = null, forward = null;
RestXqRespBuilder resp = null;
try {
// compile and evaluate query
query.compile();
final Iter iter = query.iter();
Item item = iter.next();
// handle response element
if (item != null && item instanceof ANode) {
final ANode node = (ANode) item;
// send redirect to browser
if (REST_REDIRECT.eq(node)) {
final ANode ch = node.children().next();
if (ch == null || ch.type != NodeType.TXT) throw function.error(NO_VALUE, node.name());
redirect = string(ch.string()).trim();
return;
}
// server-side forwarding
if (REST_FORWARD.eq(node)) {
final ANode ch = node.children().next();
if (ch == null || ch.type != NodeType.TXT) throw function.error(NO_VALUE, node.name());
forward = string(ch.string()).trim();
return;
}
if (REST_RESPONSE.eq(node)) {
resp = new RestXqRespBuilder();
resp.build(node, function, iter, http);
return;
}
}
// HEAD method must return a single response element
if (function.methods.size() == 1 && function.methods.contains(HTTPMethod.HEAD.name()))
throw function.error(HEAD_METHOD);
// serialize result
final SerializerOptions sp = function.output;
http.sopts(sp);
http.initResponse();
final Serializer ser = Serializer.get(http.res.getOutputStream(), sp);
for (; item != null; item = iter.next()) ser.serialize(item);
ser.close();
} finally {
query.close();
query.context.unregister(query);
if (redirect != null) {
http.res.sendRedirect(redirect);
} else if (forward != null) {
http.req.getRequestDispatcher(forward).forward(http.req, http.res);
} else if (resp != null) {
if (resp.status != 0) http.status(resp.status, resp.message, resp.error);
http.res.getOutputStream().write(resp.cache.toArray());
}
}
}