@Override
public void close() throws IOException {
IOException ioe = null;
try {
final long dirStart = out.getFilePointer();
final long indexDirStart = indexOut.getFilePointer();
out.writeVInt(fields.size());
for (FieldMetaData field : fields) {
// System.out.println(" field " + field.fieldInfo.name + " " + field.numTerms + " terms");
out.writeVInt(field.fieldInfo.number);
out.writeVLong(field.numTerms);
out.writeVInt(field.rootCode.length);
out.writeBytes(field.rootCode.bytes, field.rootCode.offset, field.rootCode.length);
if (field.fieldInfo.getIndexOptions() != IndexOptions.DOCS_ONLY) {
out.writeVLong(field.sumTotalTermFreq);
}
out.writeVLong(field.sumDocFreq);
out.writeVInt(field.docCount);
indexOut.writeVLong(field.indexStartFP);
}
writeTrailer(out, dirStart);
writeIndexTrailer(indexOut, indexDirStart);
} catch (IOException ioe2) {
ioe = ioe2;
} finally {
IOUtils.closeWhileHandlingException(ioe, out, indexOut, postingsWriter);
}
}
@Override
public void write(Directory dir, SegmentInfo si, IOContext context) throws IOException {
String dataFile = IndexFileNames.segmentFileName(si.name, "", DATA_EXTENSION);
int numFiles = si.files().size();
String names[] = si.files().toArray(new String[numFiles]);
Arrays.sort(names);
long startOffsets[] = new long[numFiles];
long endOffsets[] = new long[numFiles];
BytesRefBuilder scratch = new BytesRefBuilder();
try (IndexOutput out = dir.createOutput(dataFile, context)) {
for (int i = 0; i < names.length; i++) {
// write header for file
SimpleTextUtil.write(out, HEADER);
SimpleTextUtil.write(out, names[i], scratch);
SimpleTextUtil.writeNewline(out);
// write bytes for file
startOffsets[i] = out.getFilePointer();
try (IndexInput in = dir.openInput(names[i], IOContext.READONCE)) {
out.copyBytes(in, in.length());
}
endOffsets[i] = out.getFilePointer();
}
long tocPos = out.getFilePointer();
// write CFS table
SimpleTextUtil.write(out, TABLE);
SimpleTextUtil.write(out, Integer.toString(numFiles), scratch);
SimpleTextUtil.writeNewline(out);
for (int i = 0; i < names.length; i++) {
SimpleTextUtil.write(out, TABLENAME);
SimpleTextUtil.write(out, names[i], scratch);
SimpleTextUtil.writeNewline(out);
SimpleTextUtil.write(out, TABLESTART);
SimpleTextUtil.write(out, Long.toString(startOffsets[i]), scratch);
SimpleTextUtil.writeNewline(out);
SimpleTextUtil.write(out, TABLEEND);
SimpleTextUtil.write(out, Long.toString(endOffsets[i]), scratch);
SimpleTextUtil.writeNewline(out);
}
DecimalFormat df =
new DecimalFormat(OFFSETPATTERN, DecimalFormatSymbols.getInstance(Locale.ROOT));
SimpleTextUtil.write(out, TABLEPOS);
SimpleTextUtil.write(out, df.format(tocPos), scratch);
SimpleTextUtil.writeNewline(out);
}
}
@Override
public void resetSkip() {
super.resetSkip();
Arrays.fill(lastSkipDoc, 0);
Arrays.fill(
lastSkipPayloadLength, -1); // we don't have to write the first length in the skip list
Arrays.fill(
lastSkipOffsetLength, -1); // we don't have to write the first length in the skip list
Arrays.fill(lastSkipFreqPointer, freqOutput.getFilePointer());
if (proxOutput != null) Arrays.fill(lastSkipProxPointer, proxOutput.getFilePointer());
}
/** Sets the values for the current skip data. */
public void setSkipData(
int doc, boolean storePayloads, int payloadLength, boolean storeOffsets, int offsetLength) {
assert storePayloads || payloadLength == -1;
assert storeOffsets || offsetLength == -1;
this.curDoc = doc;
this.curStorePayloads = storePayloads;
this.curPayloadLength = payloadLength;
this.curStoreOffsets = storeOffsets;
this.curOffsetLength = offsetLength;
this.curFreqPointer = freqOutput.getFilePointer();
if (proxOutput != null) this.curProxPointer = proxOutput.getFilePointer();
}
// encodes values as sparse array: keys[] and values[]
// access is log(N) where N = keys.length (slow!)
// so this is only appropriate as an exception table for patched, or when common value is 0 (wont
// be accessed by searching)
private void addIndirect(
FieldInfo field,
final Iterable<Number> values,
int count,
final NormMap uniqueValues,
final int minOrd)
throws IOException {
int commonCount = uniqueValues.freqs[minOrd];
meta.writeVInt(count - commonCount);
meta.writeByte(INDIRECT);
meta.writeLong(data.getFilePointer());
// write docs with value
writeDocsWithValue(values, uniqueValues, minOrd);
// write actual values
writeNormsField(
field,
new Iterable<Number>() {
@Override
public Iterator<Number> iterator() {
return new FilterIterator<Number, Number>(values.iterator()) {
@Override
protected boolean predicateFunction(Number value) {
return uniqueValues.ord(value.byteValue()) > minOrd;
}
};
}
},
1);
}
public void close() throws IOException {
try {
final long dirStart = out.getFilePointer();
final int fieldCount = fields.size();
int nonNullFieldCount = 0;
for (int i = 0; i < fieldCount; i++) {
FSTFieldWriter field = fields.get(i);
if (field.fst != null) {
nonNullFieldCount++;
}
}
out.writeVInt(nonNullFieldCount);
for (int i = 0; i < fieldCount; i++) {
FSTFieldWriter field = fields.get(i);
if (field.fst != null) {
out.writeVInt(field.fieldInfo.number);
out.writeVLong(field.indexStart);
}
}
writeTrailer(dirStart);
} finally {
out.close();
}
}
private void addUncompressed(Iterable<Number> values, int count) throws IOException {
meta.writeVInt(count);
meta.writeByte(UNCOMPRESSED); // uncompressed byte[]
meta.writeLong(data.getFilePointer());
for (Number nv : values) {
data.writeByte(nv.byteValue());
}
}
/**
* This test that writes larger than the size of the buffer output will correctly increment the
* file pointer.
*/
public void testLargeWrites() throws IOException {
IndexOutput os = dir.createOutput("testBufferStart.txt");
byte[] largeBuf = new byte[2048];
for (int i = 0; i < largeBuf.length; i++) {
largeBuf[i] = (byte) (Math.random() * 256);
}
long currentPos = os.getFilePointer();
os.writeBytes(largeBuf, largeBuf.length);
try {
assertEquals(currentPos + largeBuf.length, os.getFilePointer());
} finally {
os.close();
}
}
@Override
public void flushTermsBlock(int start, int count) throws IOException {
if (DEBUG)
System.out.println(
"PW: flushTermsBlock start="
+ start
+ " count="
+ count
+ " pendingTerms.size()="
+ pendingTerms.size());
int wrappedCount = 0;
assert buffer.getFilePointer() == 0;
assert start >= count;
final int limit = pendingTerms.size() - start + count;
for (int idx = pendingTerms.size() - start; idx < limit; idx++) {
final PendingTerm term = pendingTerms.get(idx);
if (term == null) {
wrappedCount++;
} else {
buffer.writeVInt(term.bytes.length);
buffer.writeBytes(term.bytes, 0, term.bytes.length);
}
}
termsOut.writeVInt((int) buffer.getFilePointer());
buffer.writeTo(termsOut);
buffer.reset();
// TDOO: this could be somewhat costly since
// pendingTerms.size() could be biggish?
int futureWrappedCount = 0;
final int limit2 = pendingTerms.size();
for (int idx = limit; idx < limit2; idx++) {
if (pendingTerms.get(idx) == null) {
futureWrappedCount++;
}
}
// Remove the terms we just wrote:
pendingTerms.subList(pendingTerms.size() - start, limit).clear();
if (DEBUG)
System.out.println(
"PW: len="
+ buffer.getFilePointer()
+ " fp="
+ termsOut.getFilePointer()
+ " futureWrappedCount="
+ futureWrappedCount
+ " wrappedCount="
+ wrappedCount);
// TODO: can we avoid calling this if all terms
// were inlined...? Eg for a "primary key" field, the
// wrapped codec is never invoked...
wrappedPostingsWriter.flushTermsBlock(futureWrappedCount + wrappedCount, wrappedCount);
}
private void addTableCompressed(
Iterable<Number> values, FormatAndBits compression, int count, NormMap uniqueValues)
throws IOException {
meta.writeVInt(count);
meta.writeByte(TABLE_COMPRESSED); // table-compressed
meta.writeLong(data.getFilePointer());
writeTable(values, compression, count, uniqueValues, uniqueValues.size);
}
public void testEncodeDecode() throws IOException {
final int iterations = RandomInts.randomIntBetween(random(), 1, 1000);
final float acceptableOverheadRatio = random().nextFloat();
final int[] values = new int[(iterations - 1) * BLOCK_SIZE + ForUtil.MAX_DATA_SIZE];
for (int i = 0; i < iterations; ++i) {
final int bpv = random().nextInt(32);
if (bpv == 0) {
final int value = RandomInts.randomIntBetween(random(), 0, Integer.MAX_VALUE);
for (int j = 0; j < BLOCK_SIZE; ++j) {
values[i * BLOCK_SIZE + j] = value;
}
} else {
for (int j = 0; j < BLOCK_SIZE; ++j) {
values[i * BLOCK_SIZE + j] =
RandomInts.randomIntBetween(random(), 0, (int) PackedInts.maxValue(bpv));
}
}
}
final Directory d = new RAMDirectory();
final long endPointer;
{
// encode
IndexOutput out = d.createOutput("test.bin", IOContext.DEFAULT);
final ForUtil forUtil = new ForUtil(acceptableOverheadRatio, out);
for (int i = 0; i < iterations; ++i) {
forUtil.writeBlock(
Arrays.copyOfRange(values, i * BLOCK_SIZE, values.length),
new byte[MAX_ENCODED_SIZE],
out);
}
endPointer = out.getFilePointer();
out.close();
}
{
// decode
IndexInput in = d.openInput("test.bin", IOContext.READONCE);
final ForUtil forUtil = new ForUtil(in);
for (int i = 0; i < iterations; ++i) {
if (random().nextBoolean()) {
forUtil.skipBlock(in);
continue;
}
final int[] restored = new int[MAX_DATA_SIZE];
forUtil.readBlock(in, new byte[MAX_ENCODED_SIZE], restored);
assertArrayEquals(
Arrays.copyOfRange(values, i * BLOCK_SIZE, (i + 1) * BLOCK_SIZE),
Arrays.copyOf(restored, BLOCK_SIZE));
}
assertEquals(endPointer, in.getFilePointer());
in.close();
}
}
private void writeField() throws IOException {
// remember where this field is written
currentField.tvfPointer = tvf.getFilePointer();
// System.out.println("Field Pointer: " + currentField.tvfPointer);
final int size = terms.size();
tvf.writeVInt(size);
boolean storePositions = currentField.storePositions;
boolean storeOffsets = currentField.storeOffsets;
byte bits = 0x0;
if (storePositions) bits |= STORE_POSITIONS_WITH_TERMVECTOR;
if (storeOffsets) bits |= STORE_OFFSET_WITH_TERMVECTOR;
tvf.writeByte(bits);
String lastTermText = "";
for (int i = 0; i < size; i++) {
TVTerm term = (TVTerm) terms.elementAt(i);
int start = StringHelper.stringDifference(lastTermText, term.termText);
int length = term.termText.length() - start;
tvf.writeVInt(start); // write shared prefix length
tvf.writeVInt(length); // write delta length
tvf.writeChars(term.termText, start, length); // write delta chars
tvf.writeVInt(term.freq);
lastTermText = term.termText;
if (storePositions) {
if (term.positions == null)
throw new IllegalStateException("Trying to write positions that are null!");
// use delta encoding for positions
int position = 0;
for (int j = 0; j < term.freq; j++) {
tvf.writeVInt(term.positions[j] - position);
position = term.positions[j];
}
}
if (storeOffsets) {
if (term.offsets == null)
throw new IllegalStateException("Trying to write offsets that are null!");
// use delta encoding for offsets
int position = 0;
for (int j = 0; j < term.freq; j++) {
tvf.writeVInt(term.offsets[j].getStartOffset() - position);
tvf.writeVInt(
term.offsets[j].getEndOffset()
- term.offsets[j].getStartOffset()); // Save the diff between the two.
position = term.offsets[j].getEndOffset();
}
}
}
}
@Override
public void messageReceived(final RecoveryFileChunkRequest request, TransportChannel channel)
throws Exception {
try (RecoveriesCollection.StatusRef statusRef =
onGoingRecoveries.getStatusSafe(request.recoveryId(), request.shardId())) {
final RecoveryStatus recoveryStatus = statusRef.status();
final Store store = recoveryStatus.store();
recoveryStatus.state().getTranslog().totalOperations(request.totalTranslogOps());
final RecoveryState.Index indexState = recoveryStatus.state().getIndex();
if (request.sourceThrottleTimeInNanos() != RecoveryState.Index.UNKNOWN) {
indexState.addSourceThrottling(request.sourceThrottleTimeInNanos());
}
IndexOutput indexOutput;
if (request.position() == 0) {
indexOutput =
recoveryStatus.openAndPutIndexOutput(request.name(), request.metadata(), store);
} else {
indexOutput = recoveryStatus.getOpenIndexOutput(request.name());
}
BytesReference content = request.content();
if (!content.hasArray()) {
content = content.toBytesArray();
}
RateLimiter rl = recoverySettings.rateLimiter();
if (rl != null) {
long bytes = bytesSinceLastPause.addAndGet(content.length());
if (bytes > rl.getMinPauseCheckBytes()) {
// Time to pause
bytesSinceLastPause.addAndGet(-bytes);
long throttleTimeInNanos = rl.pause(bytes);
indexState.addTargetThrottling(throttleTimeInNanos);
recoveryStatus.indexShard().recoveryStats().addThrottleTime(throttleTimeInNanos);
}
}
indexOutput.writeBytes(content.array(), content.arrayOffset(), content.length());
indexState.addRecoveredBytesToFile(request.name(), content.length());
if (indexOutput.getFilePointer() >= request.length() || request.lastChunk()) {
try {
Store.verify(indexOutput);
} finally {
// we are done
indexOutput.close();
}
// write the checksum
recoveryStatus.legacyChecksums().add(request.metadata());
final String temporaryFileName = recoveryStatus.getTempNameForFile(request.name());
assert Arrays.asList(store.directory().listAll()).contains(temporaryFileName);
store.directory().sync(Collections.singleton(temporaryFileName));
IndexOutput remove = recoveryStatus.removeOpenIndexOutputs(request.name());
assert remove == null || remove == indexOutput; // remove maybe null if we got finished
}
}
channel.sendResponse(TransportResponse.Empty.INSTANCE);
}
private void addDeltaCompressed(Iterable<Number> values, int count) throws IOException {
meta.writeVInt(count);
meta.writeByte(DELTA_COMPRESSED); // delta-compressed
meta.writeLong(data.getFilePointer());
data.writeVInt(PackedInts.VERSION_CURRENT);
data.writeVInt(BLOCK_SIZE);
final BlockPackedWriter writer = new BlockPackedWriter(data, BLOCK_SIZE);
for (Number nv : values) {
writer.add(nv.longValue());
}
writer.finish();
}
// encodes common values in a table, and the rest of the values as exceptions using INDIRECT.
// the exceptions should not be accessed very often, since the values are uncommon
private void addPatchedTable(
FieldInfo field,
final Iterable<Number> values,
final int numCommonValues,
int commonValuesCount,
int count,
final NormMap uniqueValues)
throws IOException {
meta.writeVInt(count);
meta.writeByte(PATCHED_TABLE);
meta.writeLong(data.getFilePointer());
assert numCommonValues == 3 || numCommonValues == 15;
FormatAndBits compression = fastestFormatAndBits(numCommonValues);
writeTable(values, compression, count, uniqueValues, numCommonValues);
meta.writeVInt(field.number);
addIndirect(field, values, count - commonValuesCount, uniqueValues, numCommonValues);
}
// encodes only uncommon values in a sparse bitset
// access is constant time, and the common case is predictable
// exceptions nest either to CONST (if there are only 2 values), or INDIRECT (if there are > 2
// values)
private void addPatchedBitset(
FieldInfo field, final Iterable<Number> values, int count, NormMap uniqueValues)
throws IOException {
int commonCount = uniqueValues.freqs[0];
meta.writeVInt(count - commonCount);
meta.writeByte(PATCHED_BITSET);
meta.writeLong(data.getFilePointer());
// write docs with value
writeDocsWithValue(values, uniqueValues, 0);
// write exceptions: only two cases make sense
// bpv = 1 (folded into sparse bitset already)
// bpv > 1 (add indirect exception table)
meta.writeVInt(field.number);
if (uniqueValues.size == 2) {
// special case: implicit in bitset
addConstant(uniqueValues.values[1]);
} else {
// exception table
addIndirect(field, values, count, uniqueValues, 0);
}
}
@Override
public long getFilePointer() {
return tempOut.getFilePointer();
}
@Override
public long getFilePointer() {
return wrapped.getFilePointer();
}
@Override
public long getFilePointer() {
return delegate.getFilePointer();
}
public final void openDocument() throws IOException {
closeDocument();
currentDocPointer = tvd.getFilePointer();
}
