/**
* Advances to the next document matching the query. <br>
* The iterator over the matching documents is buffered using {@link TermDocs#read(int[],int[])}.
*
* @return true iff there is another document matching the query.
*/
public boolean next() throws IOException {
pointer++;
if (pointer >= pointerMax) {
pointerMax = termDocs.read(docs, freqs); // refill buffer
if (pointerMax != 0) {
pointer = 0;
} else {
termDocs.close(); // close stream
doc = Integer.MAX_VALUE; // set to sentinel value
return false;
}
}
doc = docs[pointer];
return true;
}
public boolean AddTFcollection() throws IOException {
HashMap CTF = new HashMap();
termEum = reader.terms();
while (termEum.next()) {
term = termEum.term();
termDocs = reader.termDocs(term);
if (termDocs == null) {
return false;
}
next();
tf = 0.0d;
while (doc < Integer.MAX_VALUE) { // for docs in window
int f = freqs[pointer];
tf += f * 1.0d;
if (++pointer >= pointerMax) {
pointerMax = termDocs.read(docs, freqs); // refill buffers
if (pointerMax != 0) {
pointer = 0;
} else {
termDocs.close(); // close stream
doc = Integer.MAX_VALUE; // set to sentinel value
break;
}
}
doc = docs[pointer];
}
// System.out.println(term.text()+" "+ tf);
CTF.put(term.text(), tf);
}
termEum.close();
FileOutputStream result = new FileOutputStream(new File(indexDir + "ExtendedCTF"));
ByteArrayOutputStream bo = new ByteArrayOutputStream();
ObjectOutputStream oo = new ObjectOutputStream(bo);
oo.writeObject(CTF);
result.write(bo.toByteArray());
result.close();
return true;
}