/** Launches the console mode, which reads and executes user input. */
private void console() {
Util.outln(header() + NL + TRY_MORE_X);
verbose = true;
// create console reader
try (final ConsoleReader cr = ConsoleReader.get()) {
// loop until console is set to false (may happen in server mode)
while (console) {
// get next line
final String in = cr.readLine(PROMPT);
// end of input: break loop
if (in == null) break;
// skip empty lines
if (in.isEmpty()) continue;
try {
if (!execute(new CommandParser(in, context).pwReader(cr.pwReader()))) {
// show goodbye message if method returns false
Util.outln(BYE[new Random().nextInt(4)]);
break;
}
} catch (final IOException ex) {
// output error messages
Util.errln(ex);
}
}
}
}
/**
* Main method, launching the standalone mode. Command-line arguments are listed with the {@code
* -h} argument.
*
* @param args command-line arguments
*/
public static void main(final String... args) {
try {
new BaseX(args);
} catch (final IOException ex) {
Util.errln(ex);
System.exit(1);
}
}
@Override
public DiskData build() throws IOException {
meta.assign(parser);
meta.dirty = true;
// calculate optimized output buffer sizes to reduce disk fragmentation
final Runtime rt = Runtime.getRuntime();
final long max = Math.min(1 << 22, rt.maxMemory() - rt.freeMemory() >> 2);
int bs = (int) Math.min(meta.filesize, max);
bs = Math.max(IO.BLOCKSIZE, bs - bs % IO.BLOCKSIZE);
// drop old database (if available) and create new one
DropDB.drop(dbname, sopts);
sopts.dbpath(dbname).md();
elemNames = new Names(meta);
attrNames = new Names(meta);
try {
tout = new DataOutput(new TableOutput(meta, DATATBL));
xout = new DataOutput(meta.dbfile(DATATXT), bs);
vout = new DataOutput(meta.dbfile(DATAATV), bs);
sout = new DataOutput(meta.dbfile(DATATMP), bs);
final Performance perf = Prop.debug ? new Performance() : null;
Util.debug(tit() + DOTS);
parse();
if (Prop.debug) Util.errln(" " + perf + " (" + Performance.getMemory() + ')');
} catch (final IOException ex) {
try {
close();
} catch (final IOException ignored) {
}
throw ex;
}
close();
// copy temporary values into database table
try (final DataInput in = new DataInput(meta.dbfile(DATATMP))) {
final TableAccess ta = new TableDiskAccess(meta, true);
for (; spos < ssize; ++spos) ta.write4(in.readNum(), 8, in.readNum());
ta.close();
}
meta.dbfile(DATATMP).delete();
// return database instance
return new DiskData(meta, elemNames, attrNames, path, ns);
}