@Override
public FieldsProducer fieldsProducer(SegmentReadState state) throws IOException {
PostingsReaderBase postingsReader =
new SepPostingsReader(
state.dir,
state.segmentInfo,
state.context,
new MockIntFactory(blockSize),
state.segmentSuffix);
TermsIndexReaderBase indexReader;
boolean success = false;
try {
indexReader =
new FixedGapTermsIndexReader(
state.dir,
state.fieldInfos,
state.segmentInfo.name,
state.termsIndexDivisor,
BytesRef.getUTF8SortedAsUnicodeComparator(),
state.segmentSuffix,
IOContext.DEFAULT);
success = true;
} finally {
if (!success) {
postingsReader.close();
}
}
success = false;
try {
FieldsProducer ret =
new BlockTermsReader(
indexReader,
state.dir,
state.fieldInfos,
state.segmentInfo.name,
postingsReader,
state.context,
1024,
state.segmentSuffix);
success = true;
return ret;
} finally {
if (!success) {
try {
postingsReader.close();
} finally {
indexReader.close();
}
}
}
}
@Override
public FieldsProducer fieldsProducer(SegmentReadState state) throws IOException {
final String seedFileName =
IndexFileNames.segmentFileName(state.segmentInfo.name, state.segmentSuffix, SEED_EXT);
final IndexInput in = state.dir.openInput(seedFileName, state.context);
final long seed = in.readLong();
if (LuceneTestCase.VERBOSE) {
System.out.println(
"MockRandomCodec: reading from seg="
+ state.segmentInfo.name
+ " formatID="
+ state.segmentSuffix
+ " seed="
+ seed);
}
in.close();
final Random random = new Random(seed);
int readBufferSize = _TestUtil.nextInt(random, 1, 4096);
if (LuceneTestCase.VERBOSE) {
System.out.println("MockRandomCodec: readBufferSize=" + readBufferSize);
}
PostingsReaderBase postingsReader;
if (random.nextBoolean()) {
if (LuceneTestCase.VERBOSE) {
System.out.println("MockRandomCodec: reading Sep postings");
}
postingsReader =
new SepPostingsReader(
state.dir,
state.segmentInfo,
state.context,
new MockIntStreamFactory(random),
state.segmentSuffix);
} else {
if (LuceneTestCase.VERBOSE) {
System.out.println("MockRandomCodec: reading Standard postings");
}
postingsReader =
new Lucene40PostingsReader(
state.dir, state.segmentInfo, state.context, state.segmentSuffix);
}
if (random.nextBoolean()) {
final int totTFCutoff = _TestUtil.nextInt(random, 1, 20);
if (LuceneTestCase.VERBOSE) {
System.out.println(
"MockRandomCodec: reading pulsing postings with totTFCutoff=" + totTFCutoff);
}
postingsReader = new PulsingPostingsReader(postingsReader);
}
final FieldsProducer fields;
if (random.nextBoolean()) {
// Use BlockTree terms dict
if (LuceneTestCase.VERBOSE) {
System.out.println("MockRandomCodec: reading BlockTree terms dict");
}
boolean success = false;
try {
fields =
new BlockTreeTermsReader(
state.dir,
state.fieldInfos,
state.segmentInfo.name,
postingsReader,
state.context,
state.segmentSuffix,
state.termsIndexDivisor);
success = true;
} finally {
if (!success) {
postingsReader.close();
}
}
} else {
if (LuceneTestCase.VERBOSE) {
System.out.println("MockRandomCodec: reading Block terms dict");
}
final TermsIndexReaderBase indexReader;
boolean success = false;
try {
final boolean doFixedGap = random.nextBoolean();
// randomness diverges from writer, here:
if (state.termsIndexDivisor != -1) {
state.termsIndexDivisor = _TestUtil.nextInt(random, 1, 10);
}
if (doFixedGap) {
// if termsIndexDivisor is set to -1, we should not touch it. It means a
// test explicitly instructed not to load the terms index.
if (LuceneTestCase.VERBOSE) {
System.out.println(
"MockRandomCodec: fixed-gap terms index (divisor=" + state.termsIndexDivisor + ")");
}
indexReader =
new FixedGapTermsIndexReader(
state.dir,
state.fieldInfos,
state.segmentInfo.name,
state.termsIndexDivisor,
BytesRef.getUTF8SortedAsUnicodeComparator(),
state.segmentSuffix,
state.context);
} else {
final int n2 = random.nextInt(3);
if (n2 == 1) {
random.nextInt();
} else if (n2 == 2) {
random.nextLong();
}
if (LuceneTestCase.VERBOSE) {
System.out.println(
"MockRandomCodec: variable-gap terms index (divisor="
+ state.termsIndexDivisor
+ ")");
}
indexReader =
new VariableGapTermsIndexReader(
state.dir,
state.fieldInfos,
state.segmentInfo.name,
state.termsIndexDivisor,
state.segmentSuffix,
state.context);
}
success = true;
} finally {
if (!success) {
postingsReader.close();
}
}
final int termsCacheSize = _TestUtil.nextInt(random, 1, 1024);
success = false;
try {
fields =
new BlockTermsReader(
indexReader,
state.dir,
state.fieldInfos,
state.segmentInfo.name,
postingsReader,
state.context,
termsCacheSize,
state.segmentSuffix);
success = true;
} finally {
if (!success) {
try {
postingsReader.close();
} finally {
indexReader.close();
}
}
}
}
return fields;
}