@Override
public byte[] info() {
final TokenBuilder tb = new TokenBuilder(LI_STRUCTURE).add(SORTED_LIST).add(NL);
final IndexStats stats = new IndexStats(data);
for (int m = 1; m < size; ++m) {
final int oc = len[m];
if (stats.adding(oc)) stats.add(key(m));
}
stats.print(tb);
return tb.finish();
}
@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 byte[] info(final MainOptions options) {
final TokenBuilder tb = new TokenBuilder();
tb.add(LI_STRUCTURE).add(HASH).add(NL);
tb.add(LI_NAMES).add(data.meta.names(type)).add(NL);
final IndexStats stats = new IndexStats(options.get(MainOptions.MAXSTAT));
final int s = values.size();
for (int p = 1; p <= s; p++) {
final int oc = lenList.get(p);
if (oc > 0 && stats.adding(oc)) stats.add(values.key(p), oc);
}
stats.print(tb);
return tb.finish();
}
/**
* 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) {
}
}
}
/**
* Caches and returns all unique tokens specified in a query.
*
* @param list token list
* @return token set
*/
private TokenSet unique(final TokenList list) {
// cache all query tokens in a set (duplicates are removed)
final TokenSet ts = new TokenSet();
switch (mode) {
case ALL:
case ANY:
for (final byte[] t : list) ts.add(t);
break;
case ALL_WORDS:
case ANY_WORD:
final FTLexer l = new FTLexer(ftt.opt);
for (final byte[] t : list) {
l.init(t);
while (l.hasNext()) ts.add(l.nextToken());
}
break;
case PHRASE:
final TokenBuilder tb = new TokenBuilder();
for (final byte[] t : list) tb.add(t).add(' ');
ts.add(tb.trim().finish());
}
return ts;
}
/**
* Returns a string representation of a path summary node.
*
* @param data data reference
* @param level level
* @return string representation
*/
byte[] info(final Data data, final int level) {
final TokenBuilder tb = new TokenBuilder();
if (level != 0) tb.add(Text.NL);
for (int i = 0; i < level << 1; ++i) tb.add(' ');
switch (kind) {
case Data.DOC:
tb.add(DOC);
break;
case Data.ELEM:
tb.add(data.elemNames.key(name));
break;
case Data.TEXT:
tb.add(TEXT);
break;
case Data.ATTR:
tb.add(ATT);
tb.add(data.attrNames.key(name));
break;
case Data.COMM:
tb.add(COMMENT);
break;
case Data.PI:
tb.add(PI);
break;
}
tb.add(": " + stats);
for (final PathNode p : children) tb.add(p.info(data, level + 1));
return tb.finish();
}
/**
* Returns a string representation of the index structure.
*
* @param all include database contents in the representation. During updates, database lookups
* must be avoided, as the data structures will be inconsistent.
* @return string
*/
public String toString(final boolean all) {
final TokenBuilder tb = new TokenBuilder();
tb.addExt(type).add(" INDEX, '").add(data.meta.name).add("':\n");
final int s = lenList.size();
for (int m = 1; m < s; m++) {
final int len = lenList.get(m);
if (len == 0) continue;
final int[] ids = idsList.get(m);
tb.add(" ").addInt(m);
if (all)
tb.add(", key: \"").add(data.text(data.pre(ids[0]), type == IndexType.TEXT)).add('"');
tb.add(", ids");
if (all) tb.add("/pres");
tb.add(": ");
for (int n = 0; n < len; n++) {
if (n != 0) tb.add(",");
tb.addInt(ids[n]);
if (all) tb.add('/').addInt(data.pre(ids[n]));
}
tb.add("\n");
}
return tb.toString();
}
/**
* Adds information on command execution.
*
* @param str information to be added
* @param ext extended info
* @return {@code true}
*/
protected final boolean info(final String str, final Object... ext) {
info.addExt(str, ext).add(NL);
return true;
}
/**
* Adds the error message to the message buffer {@link #info}.
*
* @param msg error message
* @param ext error extension
* @return {@code false}
*/
protected final boolean error(final String msg, final Object... ext) {
info.reset();
info.addExt(msg == null ? "" : msg, ext);
return false;
}
/**
* Returns command information.
*
* @return info string
*/
public final String info() {
return info.toString();
}
