/*
* listPostings displays the first n postings for a term in a
* field in an index (specified by reader). Set n to MAX_VALUE
* to display all postings.
*/
static void listPostings(IndexReader reader, String termString, String field, Integer n)
throws IOException {
System.out.println("\nPostings: " + termString + " " + field);
/*
* Prepare to access the index.
*/
BytesRef termBytes = new BytesRef(termString);
Term term = new Term(field, termBytes);
Bits liveDocs = MultiFields.getLiveDocs(reader);
/*
* Lookup the collection term frequency (ctf).
*/
long df = reader.docFreq(term);
System.out.println("\tdf: " + df);
long ctf = reader.totalTermFreq(term);
System.out.println("\tctf: " + ctf);
if (df < 1) return;
/*
* Lookup the inverted list.
*/
DocsAndPositionsEnum postings =
MultiFields.getTermPositionsEnum(reader, liveDocs, field, termBytes);
/*
* Iterate through the first n postings.
*/
long count = 0;
while ((count < n) && (postings.nextDoc() != DocIdSetIterator.NO_MORE_DOCS)) {
System.out.println("\tdocid: " + postings.docID());
int tf = postings.freq();
System.out.println("\ttf: " + tf);
System.out.print("\tPositions: ");
for (int j = 0; j < tf; j++) {
int pos = postings.nextPosition();
System.out.print(pos + " ");
}
System.out.println("");
count++;
}
;
return;
}
public static void verifyEquals(Fields d1, Fields d2) throws IOException {
if (d1 == null) {
assertTrue(d2 == null || d2.size() == 0);
return;
}
assertTrue(d2 != null);
Iterator<String> fieldsEnum2 = d2.iterator();
for (String field1 : d1) {
String field2 = fieldsEnum2.next();
assertEquals(field1, field2);
Terms terms1 = d1.terms(field1);
assertNotNull(terms1);
TermsEnum termsEnum1 = terms1.iterator(null);
Terms terms2 = d2.terms(field2);
assertNotNull(terms2);
TermsEnum termsEnum2 = terms2.iterator(null);
DocsAndPositionsEnum dpEnum1 = null;
DocsAndPositionsEnum dpEnum2 = null;
DocsEnum dEnum1 = null;
DocsEnum dEnum2 = null;
BytesRef term1;
while ((term1 = termsEnum1.next()) != null) {
BytesRef term2 = termsEnum2.next();
assertEquals(term1, term2);
assertEquals(termsEnum1.totalTermFreq(), termsEnum2.totalTermFreq());
dpEnum1 = termsEnum1.docsAndPositions(null, dpEnum1);
dpEnum2 = termsEnum2.docsAndPositions(null, dpEnum2);
if (dpEnum1 != null) {
assertNotNull(dpEnum2);
int docID1 = dpEnum1.nextDoc();
dpEnum2.nextDoc();
// docIDs are not supposed to be equal
// int docID2 = dpEnum2.nextDoc();
// assertEquals(docID1, docID2);
assertTrue(docID1 != DocIdSetIterator.NO_MORE_DOCS);
int freq1 = dpEnum1.freq();
int freq2 = dpEnum2.freq();
assertEquals(freq1, freq2);
OffsetAttribute offsetAtt1 =
dpEnum1.attributes().hasAttribute(OffsetAttribute.class)
? dpEnum1.attributes().getAttribute(OffsetAttribute.class)
: null;
OffsetAttribute offsetAtt2 =
dpEnum2.attributes().hasAttribute(OffsetAttribute.class)
? dpEnum2.attributes().getAttribute(OffsetAttribute.class)
: null;
if (offsetAtt1 != null) {
assertNotNull(offsetAtt2);
} else {
assertNull(offsetAtt2);
}
for (int posUpto = 0; posUpto < freq1; posUpto++) {
int pos1 = dpEnum1.nextPosition();
int pos2 = dpEnum2.nextPosition();
assertEquals(pos1, pos2);
if (offsetAtt1 != null) {
assertEquals(offsetAtt1.startOffset(), offsetAtt2.startOffset());
assertEquals(offsetAtt1.endOffset(), offsetAtt2.endOffset());
}
}
assertEquals(DocIdSetIterator.NO_MORE_DOCS, dpEnum1.nextDoc());
assertEquals(DocIdSetIterator.NO_MORE_DOCS, dpEnum2.nextDoc());
} else {
dEnum1 = TestUtil.docs(random(), termsEnum1, null, dEnum1, DocsEnum.FLAG_FREQS);
dEnum2 = TestUtil.docs(random(), termsEnum2, null, dEnum2, DocsEnum.FLAG_FREQS);
assertNotNull(dEnum1);
assertNotNull(dEnum2);
int docID1 = dEnum1.nextDoc();
dEnum2.nextDoc();
// docIDs are not supposed to be equal
// int docID2 = dEnum2.nextDoc();
// assertEquals(docID1, docID2);
assertTrue(docID1 != DocIdSetIterator.NO_MORE_DOCS);
int freq1 = dEnum1.freq();
int freq2 = dEnum2.freq();
assertEquals(freq1, freq2);
assertEquals(DocIdSetIterator.NO_MORE_DOCS, dEnum1.nextDoc());
assertEquals(DocIdSetIterator.NO_MORE_DOCS, dEnum2.nextDoc());
}
}
assertNull(termsEnum2.next());
}
assertFalse(fieldsEnum2.hasNext());
}
public void verifyEquals(DirectoryReader r1, DirectoryReader r2, String idField)
throws Throwable {
if (VERBOSE) {
System.out.println("\nr1 docs:");
printDocs(r1);
System.out.println("\nr2 docs:");
printDocs(r2);
}
if (r1.numDocs() != r2.numDocs()) {
assert false : "r1.numDocs()=" + r1.numDocs() + " vs r2.numDocs()=" + r2.numDocs();
}
boolean hasDeletes = !(r1.maxDoc() == r2.maxDoc() && r1.numDocs() == r1.maxDoc());
int[] r2r1 = new int[r2.maxDoc()]; // r2 id to r1 id mapping
// create mapping from id2 space to id2 based on idField
final Fields f1 = MultiFields.getFields(r1);
if (f1 == null) {
// make sure r2 is empty
assertNull(MultiFields.getFields(r2));
return;
}
final Terms terms1 = f1.terms(idField);
if (terms1 == null) {
assertTrue(
MultiFields.getFields(r2) == null || MultiFields.getFields(r2).terms(idField) == null);
return;
}
final TermsEnum termsEnum = terms1.iterator(null);
final Bits liveDocs1 = MultiFields.getLiveDocs(r1);
final Bits liveDocs2 = MultiFields.getLiveDocs(r2);
Fields fields = MultiFields.getFields(r2);
if (fields == null) {
// make sure r1 is in fact empty (eg has only all
// deleted docs):
Bits liveDocs = MultiFields.getLiveDocs(r1);
DocsEnum docs = null;
while (termsEnum.next() != null) {
docs = TestUtil.docs(random(), termsEnum, liveDocs, docs, DocsEnum.FLAG_NONE);
while (docs.nextDoc() != DocIdSetIterator.NO_MORE_DOCS) {
fail("r1 is not empty but r2 is");
}
}
return;
}
Terms terms2 = fields.terms(idField);
TermsEnum termsEnum2 = terms2.iterator(null);
DocsEnum termDocs1 = null;
DocsEnum termDocs2 = null;
while (true) {
BytesRef term = termsEnum.next();
// System.out.println("TEST: match id term=" + term);
if (term == null) {
break;
}
termDocs1 = TestUtil.docs(random(), termsEnum, liveDocs1, termDocs1, DocsEnum.FLAG_NONE);
if (termsEnum2.seekExact(term)) {
termDocs2 = TestUtil.docs(random(), termsEnum2, liveDocs2, termDocs2, DocsEnum.FLAG_NONE);
} else {
termDocs2 = null;
}
if (termDocs1.nextDoc() == DocIdSetIterator.NO_MORE_DOCS) {
// This doc is deleted and wasn't replaced
assertTrue(termDocs2 == null || termDocs2.nextDoc() == DocIdSetIterator.NO_MORE_DOCS);
continue;
}
int id1 = termDocs1.docID();
assertEquals(DocIdSetIterator.NO_MORE_DOCS, termDocs1.nextDoc());
assertTrue(termDocs2.nextDoc() != DocIdSetIterator.NO_MORE_DOCS);
int id2 = termDocs2.docID();
assertEquals(DocIdSetIterator.NO_MORE_DOCS, termDocs2.nextDoc());
r2r1[id2] = id1;
// verify stored fields are equivalent
try {
verifyEquals(r1.document(id1), r2.document(id2));
} catch (Throwable t) {
System.out.println("FAILED id=" + term + " id1=" + id1 + " id2=" + id2 + " term=" + term);
System.out.println(" d1=" + r1.document(id1));
System.out.println(" d2=" + r2.document(id2));
throw t;
}
try {
// verify term vectors are equivalent
verifyEquals(r1.getTermVectors(id1), r2.getTermVectors(id2));
} catch (Throwable e) {
System.out.println("FAILED id=" + term + " id1=" + id1 + " id2=" + id2);
Fields tv1 = r1.getTermVectors(id1);
System.out.println(" d1=" + tv1);
if (tv1 != null) {
DocsAndPositionsEnum dpEnum = null;
DocsEnum dEnum = null;
for (String field : tv1) {
System.out.println(" " + field + ":");
Terms terms3 = tv1.terms(field);
assertNotNull(terms3);
TermsEnum termsEnum3 = terms3.iterator(null);
BytesRef term2;
while ((term2 = termsEnum3.next()) != null) {
System.out.println(
" " + term2.utf8ToString() + ": freq=" + termsEnum3.totalTermFreq());
dpEnum = termsEnum3.docsAndPositions(null, dpEnum);
if (dpEnum != null) {
assertTrue(dpEnum.nextDoc() != DocIdSetIterator.NO_MORE_DOCS);
final int freq = dpEnum.freq();
System.out.println(" doc=" + dpEnum.docID() + " freq=" + freq);
for (int posUpto = 0; posUpto < freq; posUpto++) {
System.out.println(" pos=" + dpEnum.nextPosition());
}
} else {
dEnum = TestUtil.docs(random(), termsEnum3, null, dEnum, DocsEnum.FLAG_FREQS);
assertNotNull(dEnum);
assertTrue(dEnum.nextDoc() != DocIdSetIterator.NO_MORE_DOCS);
final int freq = dEnum.freq();
System.out.println(" doc=" + dEnum.docID() + " freq=" + freq);
}
}
}
}
Fields tv2 = r2.getTermVectors(id2);
System.out.println(" d2=" + tv2);
if (tv2 != null) {
DocsAndPositionsEnum dpEnum = null;
DocsEnum dEnum = null;
for (String field : tv2) {
System.out.println(" " + field + ":");
Terms terms3 = tv2.terms(field);
assertNotNull(terms3);
TermsEnum termsEnum3 = terms3.iterator(null);
BytesRef term2;
while ((term2 = termsEnum3.next()) != null) {
System.out.println(
" " + term2.utf8ToString() + ": freq=" + termsEnum3.totalTermFreq());
dpEnum = termsEnum3.docsAndPositions(null, dpEnum);
if (dpEnum != null) {
assertTrue(dpEnum.nextDoc() != DocIdSetIterator.NO_MORE_DOCS);
final int freq = dpEnum.freq();
System.out.println(" doc=" + dpEnum.docID() + " freq=" + freq);
for (int posUpto = 0; posUpto < freq; posUpto++) {
System.out.println(" pos=" + dpEnum.nextPosition());
}
} else {
dEnum = TestUtil.docs(random(), termsEnum3, null, dEnum, DocsEnum.FLAG_FREQS);
assertNotNull(dEnum);
assertTrue(dEnum.nextDoc() != DocIdSetIterator.NO_MORE_DOCS);
final int freq = dEnum.freq();
System.out.println(" doc=" + dEnum.docID() + " freq=" + freq);
}
}
}
}
throw e;
}
}
// System.out.println("TEST: done match id");
// Verify postings
// System.out.println("TEST: create te1");
final Fields fields1 = MultiFields.getFields(r1);
final Iterator<String> fields1Enum = fields1.iterator();
final Fields fields2 = MultiFields.getFields(r2);
final Iterator<String> fields2Enum = fields2.iterator();
String field1 = null, field2 = null;
TermsEnum termsEnum1 = null;
termsEnum2 = null;
DocsEnum docs1 = null, docs2 = null;
// pack both doc and freq into single element for easy sorting
long[] info1 = new long[r1.numDocs()];
long[] info2 = new long[r2.numDocs()];
for (; ; ) {
BytesRef term1 = null, term2 = null;
// iterate until we get some docs
int len1;
for (; ; ) {
len1 = 0;
if (termsEnum1 == null) {
if (!fields1Enum.hasNext()) {
break;
}
field1 = fields1Enum.next();
Terms terms = fields1.terms(field1);
if (terms == null) {
continue;
}
termsEnum1 = terms.iterator(null);
}
term1 = termsEnum1.next();
if (term1 == null) {
// no more terms in this field
termsEnum1 = null;
continue;
}
// System.out.println("TEST: term1=" + term1);
docs1 = TestUtil.docs(random(), termsEnum1, liveDocs1, docs1, DocsEnum.FLAG_FREQS);
while (docs1.nextDoc() != DocIdSetIterator.NO_MORE_DOCS) {
int d = docs1.docID();
int f = docs1.freq();
info1[len1] = (((long) d) << 32) | f;
len1++;
}
if (len1 > 0) break;
}
// iterate until we get some docs
int len2;
for (; ; ) {
len2 = 0;
if (termsEnum2 == null) {
if (!fields2Enum.hasNext()) {
break;
}
field2 = fields2Enum.next();
Terms terms = fields2.terms(field2);
if (terms == null) {
continue;
}
termsEnum2 = terms.iterator(null);
}
term2 = termsEnum2.next();
if (term2 == null) {
// no more terms in this field
termsEnum2 = null;
continue;
}
// System.out.println("TEST: term1=" + term1);
docs2 = TestUtil.docs(random(), termsEnum2, liveDocs2, docs2, DocsEnum.FLAG_FREQS);
while (docs2.nextDoc() != DocIdSetIterator.NO_MORE_DOCS) {
int d = r2r1[docs2.docID()];
int f = docs2.freq();
info2[len2] = (((long) d) << 32) | f;
len2++;
}
if (len2 > 0) break;
}
assertEquals(len1, len2);
if (len1 == 0) break; // no more terms
assertEquals(field1, field2);
assertTrue(term1.bytesEquals(term2));
if (!hasDeletes) assertEquals(termsEnum1.docFreq(), termsEnum2.docFreq());
assertEquals("len1=" + len1 + " len2=" + len2 + " deletes?=" + hasDeletes, term1, term2);
// sort info2 to get it into ascending docid
Arrays.sort(info2, 0, len2);
// now compare
for (int i = 0; i < len1; i++) {
assertEquals(
"i="
+ i
+ " len="
+ len1
+ " d1="
+ (info1[i] >>> 32)
+ " f1="
+ (info1[i] & Integer.MAX_VALUE)
+ " d2="
+ (info2[i] >>> 32)
+ " f2="
+ (info2[i] & Integer.MAX_VALUE)
+ " field="
+ field1
+ " term="
+ term1.utf8ToString(),
info1[i],
info2[i]);
}
}
}