spike-liu commented on a change in pull request #464: URL: https://github.com/apache/lucene/pull/464#discussion_r782719730
########## File path: lucene/codecs/src/java/org/apache/lucene/codecs/memory/DirectDocValuesConsumer.java ########## @@ -0,0 +1,1101 @@ +/* + * Licensed to the Apache Software Foundation (ASF) under one or more + * contributor license agreements. See the NOTICE file distributed with + * this work for additional information regarding copyright ownership. + * The ASF licenses this file to You under the Apache License, Version 2.0 + * (the "License"); you may not use this file except in compliance with + * the License. You may obtain a copy of the License at + * + * http://www.apache.org/licenses/LICENSE-2.0 + * + * Unless required by applicable law or agreed to in writing, software + * distributed under the License is distributed on an "AS IS" BASIS, + * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. + * See the License for the specific language governing permissions and + * limitations under the License. + */ +package org.apache.lucene.codecs.memory; + + +import org.apache.lucene.codecs.CodecUtil; +import org.apache.lucene.codecs.DocValuesConsumer; +import org.apache.lucene.codecs.DocValuesProducer; +import org.apache.lucene.index.BaseTermsEnum; +import org.apache.lucene.index.BinaryDocValues; +import org.apache.lucene.index.DocValues; +import org.apache.lucene.index.EmptyDocValuesProducer; +import org.apache.lucene.index.FieldInfo; +import org.apache.lucene.index.ImpactsEnum; +import org.apache.lucene.index.IndexFileNames; +import org.apache.lucene.index.NumericDocValues; +import org.apache.lucene.index.PostingsEnum; +import org.apache.lucene.index.SegmentWriteState; +import org.apache.lucene.index.SortedDocValues; +import org.apache.lucene.index.SortedNumericDocValues; +import org.apache.lucene.index.SortedSetDocValues; +import org.apache.lucene.index.TermsEnum; +import org.apache.lucene.search.DocIdSetIterator; +import org.apache.lucene.store.IndexOutput; +import org.apache.lucene.util.ArrayUtil; +import org.apache.lucene.util.BytesRef; +import org.apache.lucene.util.BytesRefBuilder; +import org.apache.lucene.util.IOUtils; +import org.apache.lucene.util.LongsRef; + +import java.io.IOException; + +import static org.apache.lucene.codecs.memory.DirectDocValuesProducer.BYTES; +import static org.apache.lucene.codecs.memory.DirectDocValuesProducer.NUMBER; +import static org.apache.lucene.codecs.memory.DirectDocValuesProducer.SORTED; +import static org.apache.lucene.codecs.memory.DirectDocValuesProducer.SORTED_NUMERIC; +import static org.apache.lucene.codecs.memory.DirectDocValuesProducer.SORTED_NUMERIC_SINGLETON; +import static org.apache.lucene.codecs.memory.DirectDocValuesProducer.SORTED_SET; +import static org.apache.lucene.codecs.memory.DirectDocValuesProducer.SORTED_SET_SINGLETON; +import static org.apache.lucene.codecs.memory.DirectDocValuesProducer.VERSION_CURRENT; +import static org.apache.lucene.index.SortedSetDocValues.NO_MORE_ORDS; +import static org.apache.lucene.search.DocIdSetIterator.NO_MORE_DOCS; + +/** + * Writer for {@link DirectDocValuesFormat} + */ + +class DirectDocValuesConsumer extends DocValuesConsumer { + final int maxDoc; + IndexOutput data, meta; + + DirectDocValuesConsumer(SegmentWriteState state, String dataCodec, String dataExtension, String metaCodec, String metaExtension) throws IOException { + maxDoc = state.segmentInfo.maxDoc(); + boolean success = false; + try { + String dataName = IndexFileNames.segmentFileName(state.segmentInfo.name, state.segmentSuffix, dataExtension); + data = state.directory.createOutput(dataName, state.context); + CodecUtil.writeIndexHeader(data, dataCodec, VERSION_CURRENT, state.segmentInfo.getId(), state.segmentSuffix); + String metaName = IndexFileNames.segmentFileName(state.segmentInfo.name, state.segmentSuffix, metaExtension); + meta = state.directory.createOutput(metaName, state.context); + CodecUtil.writeIndexHeader(meta, metaCodec, VERSION_CURRENT, state.segmentInfo.getId(), state.segmentSuffix); + success = true; + } finally { + if (!success) { + IOUtils.closeWhileHandlingException(this); + } + } + } + + @Override + public void addNumericField(FieldInfo field, DocValuesProducer valuesProducer) throws IOException { + meta.writeVInt(field.number); + meta.writeByte(NUMBER); + addNumericFieldValues(field, new EmptyDocValuesProducer() { + @Override + public SortedNumericDocValues getSortedNumeric(FieldInfo field) throws IOException { + return new SortedNumericDocNullableValues() { + final NumericDocValues in = valuesProducer.getNumeric(field); + long[] values = LongsRef.EMPTY_LONGS; + long[] nullValues = LongsRef.EMPTY_LONGS; + int docIDUpto, i, docValueCount; + + @Override + public boolean isNextValueNull() { + return nullValues[i-1] == 1; + } + + @Override + public long nextValue() { + return values[i++]; + } + + @Override + public int docValueCount() { + return docValueCount; + } + + @Override + public boolean advanceExact(int target) { + throw new UnsupportedOperationException(); + } + + @Override + public int docID() { + throw new UnsupportedOperationException(); + } + + @Override + public int nextDoc() throws IOException { + if (docIDUpto == maxDoc) { + return NO_MORE_DOCS; + } + int docID = in.nextDoc(); + if (docID == NO_MORE_DOCS) { + docID = -1; + } + docValueCount = 0; + nullValues = LongsRef.EMPTY_LONGS; + while (docIDUpto <= in.docID() && docIDUpto < maxDoc) { + values = ArrayUtil.grow(values, docValueCount + 1); + nullValues = ArrayUtil.grow(nullValues, docValueCount + 1); + if (docIDUpto++ == in.docID()) { + values[docValueCount++] = in.longValue(); + } else { + nullValues[docValueCount++] = 1; + } + } + i = 0; + return docID; + } + + @Override + public int advance(int target) { + throw new UnsupportedOperationException(); + } + + @Override + public long cost() { + throw new UnsupportedOperationException(); + } + }; + } + }); + } + + private abstract static class SortedNumericDocNullableValues extends SortedNumericDocValues { + public boolean isNextValueNull() { + return false; + } + } + + private abstract static class DocNullableValuesIterator extends DocIdSetIterator { + public abstract boolean isValueNull(); + } + + private void addNumericFieldValues(FieldInfo field, final DocValuesProducer valuesProducer) throws IOException { + meta.writeLong(data.getFilePointer()); + long minValue = Long.MAX_VALUE; + long maxValue = Long.MIN_VALUE; + boolean missing = false; + + long count = 0; + SortedNumericDocNullableValues values = (SortedNumericDocNullableValues) valuesProducer.getSortedNumeric(field); + for (int docID = values.nextDoc(); docID != DocIdSetIterator.NO_MORE_DOCS; docID = values.nextDoc()) { + for (int i = 0, docValueCount = values.docValueCount(); i < docValueCount; ++i) { + long v = values.nextValue(); + if (values.isNextValueNull()) { + missing = true; + } else { + minValue = Math.min(minValue, v); + maxValue = Math.max(maxValue, v); + } + count++; + if (count >= DirectDocValuesFormat.MAX_SORTED_SET_ORDS) { + throw new IllegalArgumentException("DocValuesField \"" + field.name + "\" is too large, must be <= " + DirectDocValuesFormat.MAX_SORTED_SET_ORDS + " values/total ords"); + } + } + } + + meta.writeInt((int) count); + + if (missing) { + long start = data.getFilePointer(); + writeMissingBitset(new DocNullableValuesIterator() { + final SortedNumericDocNullableValues values = (SortedNumericDocNullableValues) valuesProducer.getSortedNumeric(field); + int docID = values.nextDoc(); + int i; + int docValueCount = values.docValueCount(); + boolean isValueMissing = false; + + @Override + public boolean isValueNull() { + return isValueMissing; + } + + @Override + public int docID() { + throw new UnsupportedOperationException(); + } + + @Override + public int nextDoc() throws IOException { + isValueMissing = false; + if (i < docValueCount) { + i++; + } else { + docID = values.nextDoc(); + if (docID == NO_MORE_DOCS) return NO_MORE_DOCS; + i = 1; + docValueCount = values.docValueCount(); + } + values.nextValue(); + if (values.isNextValueNull()) { + isValueMissing = true; + } + return docID; + } + + @Override + public int advance(int target) { + throw new UnsupportedOperationException(); + } + + @Override + public long cost() { + throw new UnsupportedOperationException(); + } + }); + + meta.writeLong(start); + meta.writeLong(data.getFilePointer() - start); + } else { + meta.writeLong(-1L); + } + + byte byteWidth; + if (minValue >= Byte.MIN_VALUE && maxValue <= Byte.MAX_VALUE) { + byteWidth = 1; + } else if (minValue >= Short.MIN_VALUE && maxValue <= Short.MAX_VALUE) { + byteWidth = 2; + } else if (minValue >= Integer.MIN_VALUE && maxValue <= Integer.MAX_VALUE) { + byteWidth = 4; + } else { + byteWidth = 8; + } + meta.writeByte(byteWidth); + + values = (SortedNumericDocNullableValues) valuesProducer.getSortedNumeric(field); + for (int doc = values.nextDoc(); doc != DocIdSetIterator.NO_MORE_DOCS; doc = values.nextDoc()) { + for (int i = 0, docValueCount = values.docValueCount(); i < docValueCount; ++i) { + long v = values.nextValue(); + if (values.isNextValueNull()) { + v = 0; + } + + switch (byteWidth) { + case 1: + data.writeByte((byte) v); + break; + case 2: + data.writeShort((short) v); + break; + case 4: + data.writeInt((int) v); + break; + case 8: + data.writeLong(v); + break; + } + } + } + } + + @Override + public void close() throws IOException { + boolean success = false; + try { + if (meta != null) { + meta.writeVInt(-1); // write EOF marker + CodecUtil.writeFooter(meta); // write checksum + } + if (data != null) { + CodecUtil.writeFooter(data); + } + success = true; + } finally { + if (success) { + IOUtils.close(data, meta); + } else { + IOUtils.closeWhileHandlingException(data, meta); + } + data = meta = null; + } + } + + @Override + public void addBinaryField(FieldInfo field, final DocValuesProducer valuesProducer) throws IOException { + meta.writeVInt(field.number); + meta.writeByte(BYTES); + addBinaryFieldValues(field, new EmptyDocValuesProducer() { + @Override + public SortedSetDocValues getSortedSet(FieldInfo field) throws IOException { + return new SortedSetDocValues() { + final BinaryDocValues values = valuesProducer.getBinary(field); + + @Override + public long nextOrd() { + return 0; + } + + @Override + public BytesRef lookupOrd(long ord) throws IOException { + if (ord > values.docID()) { + values.nextDoc(); + } + BytesRef result; + if (ord == values.docID()) { + result = values.binaryValue(); + } else { + result = new BytesRef(); + result.bytes = null; + } + return result; + } + + @Override + public long getValueCount() { + return maxDoc; + } + + @Override + public boolean advanceExact(int target) { + return false; + } + + @Override + public int docID() { + return values.docID(); + } + + @Override + public int nextDoc() { + return 0; + } + + @Override + public int advance(int target) { + return 0; + } + + @Override + public long cost() { + return 0; Review comment: fixed. -- This is an automated message from the Apache Git Service. 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