@Override
public void mousePressed(final MouseEvent e) {
Performance.gc(3);
repaint();
final Runtime rt = Runtime.getRuntime();
final long max = rt.maxMemory();
final long total = rt.totalMemory();
final long used = total - rt.freeMemory();
final String inf =
TOTAL_MEM_C
+ Performance.format(max, true)
+ NL
+ RESERVED_MEM_C
+ Performance.format(total, true)
+ NL
+ MEMUSED_C
+ Performance.format(used, true)
+ NL
+ NL
+ H_USED_MEM;
BaseXDialog.info(gui, inf);
}
/** Notifies all views of a data reference change. */
public void init() {
final Data data = initHistory(gui.context);
if (data != null) {
// if a large database is opened, the user is asked if complex
/// visualizations should be closed first
final long size = data.meta.dbsize();
boolean open = false;
for (final View v : view) open |= v.visible() && v.db();
if (open
&& size > LARGEDB
&& BaseXDialog.confirm(gui, Util.info(H_LARGE_DB, Performance.format(size)))) {
for (final View v : view) if (v.visible() && v.db()) v.visible(false);
}
} else {
// database closed: close open dialogs
for (final Window w : gui.getOwnedWindows()) {
if (w.isVisible() && w instanceof BaseXDialog) ((BaseXDialog) w).cancel();
}
}
gui.context.focused = -1;
for (final View v : view) v.refreshInit();
gui.layoutViews();
gui.setTitle(data != null ? data.meta.name : null);
}
/**
* Runs the command without permission, data and concurrency checks.
*
* @param ctx database context
* @param os output stream
* @return result of check
*/
public boolean run(final Context ctx, final OutputStream os) {
perf = new Performance();
context = ctx;
prop = ctx.prop;
mprop = ctx.mprop;
out = PrintOutput.get(os);
try {
return run();
} catch (final ProgressException ex) {
// process was interrupted by the user or server
abort();
return error(INTERRUPTED);
} catch (final Throwable ex) {
// unexpected error
Performance.gc(2);
abort();
if (ex instanceof OutOfMemoryError) {
Util.debug(ex);
return error(OUT_OF_MEM + (createWrite() ? H_OUT_OF_MEM : ""));
}
return error(Util.bug(ex) + NL + info.toString());
} finally {
// flushes the output
try {
if (out != null) out.flush();
} catch (final IOException ignored) {
}
}
}
/**
* Parses the query.
*
* @param p performance
* @throws QueryException query exception
*/
private void parse(final Performance p) throws QueryException {
qp.http(http);
for (final Entry<String, String[]> entry : vars.entrySet()) {
final String name = entry.getKey();
final String[] value = entry.getValue();
if (name == null) qp.context(value[0], value[1]);
else qp.bind(name, value[0], value[1]);
}
qp.parse();
if (p != null) info.parsing += p.time();
}
@Override
public synchronized byte[] info(final MainOptions options) {
final TokenBuilder tb = new TokenBuilder();
final long l = inX.length() + inY.length() + inZ.length();
tb.add(LI_NAMES).add(data.meta.ftinclude).add(NL);
tb.add(LI_SIZE + Performance.format(l, true) + NL);
final IndexStats stats = new IndexStats(options.get(MainOptions.MAXSTAT));
addOccs(stats);
stats.print(tb);
return tb.finish();
}
@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);
}
@Override
public void paintComponent(final Graphics g) {
super.paintComponent(g);
final Runtime rt = Runtime.getRuntime();
final long max = rt.maxMemory();
final long total = rt.totalMemory();
final long used = total - rt.freeMemory();
final int ww = getWidth();
final int hh = getHeight();
// draw memory box
g.setColor(Color.white);
g.fillRect(0, 0, ww - 3, hh - 3);
g.setColor(GRAY);
g.drawLine(0, 0, ww - 4, 0);
g.drawLine(0, 0, 0, hh - 4);
g.drawLine(ww - 3, 0, ww - 3, hh - 3);
g.drawLine(0, hh - 3, ww - 3, hh - 3);
// show total memory usage
g.setColor(color1);
g.fillRect(2, 2, Math.max(1, (int) (total * (ww - 6) / max)), hh - 6);
// show current memory usage
final boolean full = used * 6 / 5 > max;
g.setColor(full ? colormark4 : color3);
g.fillRect(2, 2, Math.max(1, (int) (used * (ww - 6) / max)), hh - 6);
// print current memory usage
final FontMetrics fm = g.getFontMetrics();
final String mem = Performance.format(used, true);
final int fw = (ww - fm.stringWidth(mem)) / 2;
final int h = fm.getHeight() - 3;
g.setColor(full ? colormark3 : DGRAY);
g.drawString(mem, fw, h);
}
/**
* Evaluates the specified query.
*
* @param query query
* @return success flag
*/
final boolean query(final String query) {
final Performance p = new Performance();
String error;
if (exception != null) {
error = Util.message(exception);
} else {
try {
long hits = 0;
final boolean run = options.get(MainOptions.RUNQUERY);
final boolean serial = options.get(MainOptions.SERIALIZE);
final int runs = Math.max(1, options.get(MainOptions.RUNS));
for (int r = 0; r < runs; ++r) {
// reuse existing processor instance
if (r != 0) qp = null;
qp(query, context);
parse(p);
if (r == 0) plan(false);
qp.compile();
info.compiling += p.time();
if (r == 0) plan(true);
if (!run) continue;
final PrintOutput po = r == 0 && serial ? out : new NullOutput();
try (final Serializer ser = qp.getSerializer(po)) {
if (maxResults >= 0) {
result = qp.cache(maxResults);
info.evaluating += p.time();
result.serialize(ser);
hits = result.size();
} else {
hits = 0;
final Iter ir = qp.iter();
info.evaluating += p.time();
for (Item it; (it = ir.next()) != null; ) {
ser.serialize(it);
++hits;
checkStop();
}
}
}
qp.close();
info.serializing += p.time();
}
// dump some query info
// out.flush();
// remove string list if global locking is used and if query is updating
if (soptions.get(StaticOptions.GLOBALLOCK) && qp.updating) {
info.readLocked = null;
info.writeLocked = null;
}
return info(info.toString(qp, out.size(), hits, options.get(MainOptions.QUERYINFO)));
} catch (final QueryException | IOException ex) {
exception = ex;
error = Util.message(ex);
} catch (final ProcException ex) {
error = INTERRUPTED;
} catch (final StackOverflowError ex) {
Util.debug(ex);
error = BASX_STACKOVERFLOW.desc;
} catch (final RuntimeException ex) {
extError("");
Util.debug(info());
throw ex;
} finally {
// close processor after exceptions
if (qp != null) qp.close();
}
}
return extError(error);
}
/**
* Prints performance information if the {@link Prop#debug} flag is set.
*
* @param perf performance reference
*/
public static void memory(final Performance perf) {
if (!Prop.debug) return;
errln(" " + perf + " (" + Performance.getMemory() + ')');
}