/**
* Write the map to the specified file.
*
* @param file file to write to
* @throws IOException I/O error while writing to the file
*/
public void write(final IOFile file) throws IOException {
try (final DataOutput out = new DataOutput(file)) {
out.writeNum(baseid);
out.writeNum(rows);
out.writeNums(pres);
out.writeNums(fids);
out.writeNums(nids);
out.writeNums(incs);
out.writeNums(oids);
}
}
/**
* Writes the node to the specified output stream.
*
* @param out output stream
* @throws IOException I/O exception
*/
void write(final DataOutput out) throws IOException {
out.writeNum(name);
out.write1(kind);
out.writeNum(0);
out.writeNum(children.length);
out.writeDouble(1);
// update leaf flag
boolean leaf = stats.isLeaf();
for (final PathNode child : children) {
leaf &= child.kind == Data.TEXT || child.kind == Data.ATTR;
}
stats.setLeaf(leaf);
stats.write(out);
for (final PathNode child : children) child.write(out);
}
/**
* Writes full-text data for a single token to disk.<br>
* Format: {@code score? pre1 pos1 pre2 pos2 ... (0 score)? pre...}
*
* @param out DataOutput for disk access
* @param vpre compressed pre values
* @param vpos compressed pos values
* @throws IOException IOException
*/
final void writeFTData(final DataOutput out, final byte[] vpre, final byte[] vpos)
throws IOException {
int np = 4, pp = 4, lp = -1, lu = -1;
final int ns = Num.size(vpre);
while (np < ns) {
if (scm > 0) {
final int p = Num.get(vpre, np);
if (lp != p) {
// new pre value: find document root
int u = unit.sortedIndexOf(p);
if (u < 0) u = -u - 1;
if (lu != u) {
// new unit: store scoring
final int s = Scoring.tfIDF(freq.get(fc++), maxfreq[u], unit.size(), ntoken[token]);
if (max < s) max = s;
if (min > s) min = s;
if (np != 4) out.write(0);
out.writeNum(s);
lu = u;
}
lp = p;
}
}
// full-text data is stored here, with -scoreU, pre1, pos1, ...,
// -scoreU, preU, posU
for (final int l = np + Num.length(vpre, np); np < l; ++np) out.write(vpre[np]);
for (final int l = pp + Num.length(vpos, pp); pp < l; ++pp) out.write(vpos[pp]);
}
++token;
}
@Override
public synchronized void flush() throws IOException {
for (final Buffer b : bm.all()) if (b.dirty) writeBlock(b);
if (!dirty) return;
try (final DataOutput out = new DataOutput(meta.dbfile(DATATBL + 'i'))) {
out.writeNum(blocks);
out.writeNum(used);
// due to legacy issues, number of blocks is written several times
out.writeNum(blocks);
for (int a = 0; a < blocks; a++) out.writeNum(fpres[a]);
out.writeNum(blocks);
for (int a = 0; a < blocks; a++) out.writeNum(pages[a]);
out.writeLongs(usedPages.toArray());
}
dirty = false;
}
/**
* Writes a single node to disk.
*
* @param out output stream
* @throws IOException I/O exception
*/
void write(final DataOutput out) throws IOException {
out.writeNum(pr);
out.writeNums(values);
out.writeNum(sz);
for (int c = 0; c < sz; ++c) children[c].write(out);
}
@Override
protected void setSize(final int pre, final int size) throws IOException {
sout.writeNum(pre);
sout.writeNum(size);
++ssize;
}