@Override
public FieldsConsumer fieldsConsumer(SegmentWriteState state) throws IOException {
PostingsWriterBase postingsWriter = new SepPostingsWriter(state, new MockIntFactory(blockSize));
boolean success = false;
TermsIndexWriterBase indexWriter;
try {
indexWriter = new FixedGapTermsIndexWriter(state);
success = true;
} finally {
if (!success) {
postingsWriter.close();
}
}
success = false;
try {
FieldsConsumer ret = new BlockTermsWriter(indexWriter, state, postingsWriter);
success = true;
return ret;
} finally {
if (!success) {
try {
postingsWriter.close();
} finally {
indexWriter.close();
}
}
}
}
@Override
public FieldsConsumer fieldsConsumer(SegmentWriteState state) throws IOException {
PostingsWriterBase docsWriter = new Lucene40PostingsWriter(state);
boolean success = false;
try {
FieldsConsumer ret =
new AppendingTermsWriter(
state,
docsWriter,
BlockTreeTermsWriter.DEFAULT_MIN_BLOCK_SIZE,
BlockTreeTermsWriter.DEFAULT_MAX_BLOCK_SIZE);
success = true;
return ret;
} finally {
if (!success) {
docsWriter.close();
}
}
}
@Override
public FieldsConsumer fieldsConsumer(SegmentWriteState state) throws IOException {
// we pull this before the seed intentionally: because its not consumed at runtime
// (the skipInterval is written into postings header)
int skipInterval = _TestUtil.nextInt(seedRandom, 2, 10);
if (LuceneTestCase.VERBOSE) {
System.out.println("MockRandomCodec: skipInterval=" + skipInterval);
}
final long seed = seedRandom.nextLong();
if (LuceneTestCase.VERBOSE) {
System.out.println(
"MockRandomCodec: writing to seg="
+ state.segmentName
+ " formatID="
+ state.segmentSuffix
+ " seed="
+ seed);
}
final String seedFileName =
IndexFileNames.segmentFileName(state.segmentName, state.segmentSuffix, SEED_EXT);
final IndexOutput out = state.directory.createOutput(seedFileName, state.context);
try {
out.writeLong(seed);
} finally {
out.close();
}
final Random random = new Random(seed);
random.nextInt(); // consume a random for buffersize
PostingsWriterBase postingsWriter;
if (random.nextBoolean()) {
postingsWriter = new SepPostingsWriter(state, new MockIntStreamFactory(random), skipInterval);
} else {
if (LuceneTestCase.VERBOSE) {
System.out.println("MockRandomCodec: writing Standard postings");
}
postingsWriter = new Lucene40PostingsWriter(state, skipInterval);
}
if (random.nextBoolean()) {
final int totTFCutoff = _TestUtil.nextInt(random, 1, 20);
if (LuceneTestCase.VERBOSE) {
System.out.println(
"MockRandomCodec: writing pulsing postings with totTFCutoff=" + totTFCutoff);
}
postingsWriter = new PulsingPostingsWriter(totTFCutoff, postingsWriter);
}
final FieldsConsumer fields;
if (random.nextBoolean()) {
// Use BlockTree terms dict
if (LuceneTestCase.VERBOSE) {
System.out.println("MockRandomCodec: writing BlockTree terms dict");
}
// TODO: would be nice to allow 1 but this is very
// slow to write
final int minTermsInBlock = _TestUtil.nextInt(random, 2, 100);
final int maxTermsInBlock = Math.max(2, (minTermsInBlock - 1) * 2 + random.nextInt(100));
boolean success = false;
try {
fields = new BlockTreeTermsWriter(state, postingsWriter, minTermsInBlock, maxTermsInBlock);
success = true;
} finally {
if (!success) {
postingsWriter.close();
}
}
} else {
if (LuceneTestCase.VERBOSE) {
System.out.println("MockRandomCodec: writing Block terms dict");
}
boolean success = false;
final TermsIndexWriterBase indexWriter;
try {
if (random.nextBoolean()) {
state.termIndexInterval = _TestUtil.nextInt(random, 1, 100);
if (LuceneTestCase.VERBOSE) {
System.out.println(
"MockRandomCodec: fixed-gap terms index (tii=" + state.termIndexInterval + ")");
}
indexWriter = new FixedGapTermsIndexWriter(state);
} else {
final VariableGapTermsIndexWriter.IndexTermSelector selector;
final int n2 = random.nextInt(3);
if (n2 == 0) {
final int tii = _TestUtil.nextInt(random, 1, 100);
selector = new VariableGapTermsIndexWriter.EveryNTermSelector(tii);
if (LuceneTestCase.VERBOSE) {
System.out.println("MockRandomCodec: variable-gap terms index (tii=" + tii + ")");
}
} else if (n2 == 1) {
final int docFreqThresh = _TestUtil.nextInt(random, 2, 100);
final int tii = _TestUtil.nextInt(random, 1, 100);
selector =
new VariableGapTermsIndexWriter.EveryNOrDocFreqTermSelector(docFreqThresh, tii);
} else {
final long seed2 = random.nextLong();
final int gap = _TestUtil.nextInt(random, 2, 40);
if (LuceneTestCase.VERBOSE) {
System.out.println("MockRandomCodec: random-gap terms index (max gap=" + gap + ")");
}
selector =
new VariableGapTermsIndexWriter.IndexTermSelector() {
final Random rand = new Random(seed2);
@Override
public boolean isIndexTerm(BytesRef term, TermStats stats) {
return rand.nextInt(gap) == gap / 2;
}
@Override
public void newField(FieldInfo fieldInfo) {}
};
}
indexWriter = new VariableGapTermsIndexWriter(state, selector);
}
success = true;
} finally {
if (!success) {
postingsWriter.close();
}
}
success = false;
try {
fields = new BlockTermsWriter(indexWriter, state, postingsWriter);
success = true;
} finally {
if (!success) {
try {
postingsWriter.close();
} finally {
indexWriter.close();
}
}
}
}
return fields;
}
@Override
public void close() throws IOException {
wrappedPostingsWriter.close();
}