+++ /dev/null
-package org.apache.lucene.index;
-
-/**
- * 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.
- */
-
-import org.apache.lucene.store.IndexOutput;
-import org.apache.lucene.store.RAMOutputStream;
-import org.apache.lucene.util.ArrayUtil;
-import org.apache.lucene.util.IOUtils;
-import org.apache.lucene.util.RamUsageEstimator;
-
-import java.io.IOException;
-import java.util.Collection;
-
-import java.util.Map;
-
-final class TermVectorsTermsWriter extends TermsHashConsumer {
-
- final DocumentsWriter docWriter;
- PerDoc[] docFreeList = new PerDoc[1];
- int freeCount;
- IndexOutput tvx;
- IndexOutput tvd;
- IndexOutput tvf;
- int lastDocID;
- boolean hasVectors;
-
- public TermVectorsTermsWriter(DocumentsWriter docWriter) {
- this.docWriter = docWriter;
- }
-
- @Override
- public TermsHashConsumerPerThread addThread(TermsHashPerThread termsHashPerThread) {
- return new TermVectorsTermsWriterPerThread(termsHashPerThread, this);
- }
-
- @Override
- synchronized void flush(Map<TermsHashConsumerPerThread,Collection<TermsHashConsumerPerField>> threadsAndFields, final SegmentWriteState state) throws IOException {
- if (tvx != null) {
- // At least one doc in this run had term vectors enabled
- fill(state.numDocs);
- IOUtils.close(tvx, tvf, tvd);
- tvx = tvd = tvf = null;
- assert state.segmentName != null;
- String idxName = IndexFileNames.segmentFileName(state.segmentName, IndexFileNames.VECTORS_INDEX_EXTENSION);
- if (4 + ((long) state.numDocs) * 16 != state.directory.fileLength(idxName)) {
- throw new RuntimeException("after flush: tvx size mismatch: " + state.numDocs + " docs vs " + state.directory.fileLength(idxName) + " length in bytes of " + idxName + " file exists?=" + state.directory.fileExists(idxName));
- }
-
- lastDocID = 0;
- state.hasVectors = hasVectors;
- hasVectors = false;
- }
-
- for (Map.Entry<TermsHashConsumerPerThread,Collection<TermsHashConsumerPerField>> entry : threadsAndFields.entrySet()) {
- for (final TermsHashConsumerPerField field : entry.getValue() ) {
- TermVectorsTermsWriterPerField perField = (TermVectorsTermsWriterPerField) field;
- perField.termsHashPerField.reset();
- perField.shrinkHash();
- }
-
- TermVectorsTermsWriterPerThread perThread = (TermVectorsTermsWriterPerThread) entry.getKey();
- perThread.termsHashPerThread.reset(true);
- }
- }
-
- int allocCount;
-
- synchronized PerDoc getPerDoc() {
- if (freeCount == 0) {
- allocCount++;
- if (allocCount > docFreeList.length) {
- // Grow our free list up front to make sure we have
- // enough space to recycle all outstanding PerDoc
- // instances
- assert allocCount == 1+docFreeList.length;
- docFreeList = new PerDoc[ArrayUtil.oversize(allocCount, RamUsageEstimator.NUM_BYTES_OBJECT_REF)];
- }
- return new PerDoc();
- } else {
- return docFreeList[--freeCount];
- }
- }
-
- /** Fills in no-term-vectors for all docs we haven't seen
- * since the last doc that had term vectors. */
- void fill(int docID) throws IOException {
- if (lastDocID < docID) {
- final long tvfPosition = tvf.getFilePointer();
- while(lastDocID < docID) {
- tvx.writeLong(tvd.getFilePointer());
- tvd.writeVInt(0);
- tvx.writeLong(tvfPosition);
- lastDocID++;
- }
- }
- }
-
- synchronized void initTermVectorsWriter() throws IOException {
- if (tvx == null) {
- boolean success = false;
- try {
- // If we hit an exception while init'ing the term
- // vector output files, we must abort this segment
- // because those files will be in an unknown
- // state:
- hasVectors = true;
- tvx = docWriter.directory.createOutput(IndexFileNames.segmentFileName(docWriter.getSegment(), IndexFileNames.VECTORS_INDEX_EXTENSION));
- tvd = docWriter.directory.createOutput(IndexFileNames.segmentFileName(docWriter.getSegment(), IndexFileNames.VECTORS_DOCUMENTS_EXTENSION));
- tvf = docWriter.directory.createOutput(IndexFileNames.segmentFileName(docWriter.getSegment(), IndexFileNames.VECTORS_FIELDS_EXTENSION));
-
- tvx.writeInt(TermVectorsReader.FORMAT_CURRENT);
- tvd.writeInt(TermVectorsReader.FORMAT_CURRENT);
- tvf.writeInt(TermVectorsReader.FORMAT_CURRENT);
- success = true;
- } finally {
- if (!success) {
- IOUtils.closeWhileHandlingException(tvx, tvd, tvf);
- }
- }
- lastDocID = 0;
- }
- }
-
- synchronized void finishDocument(PerDoc perDoc) throws IOException {
-
- assert docWriter.writer.testPoint("TermVectorsTermsWriter.finishDocument start");
-
- initTermVectorsWriter();
-
- fill(perDoc.docID);
-
- // Append term vectors to the real outputs:
- tvx.writeLong(tvd.getFilePointer());
- tvx.writeLong(tvf.getFilePointer());
- tvd.writeVInt(perDoc.numVectorFields);
- if (perDoc.numVectorFields > 0) {
- for(int i=0;i<perDoc.numVectorFields;i++) {
- tvd.writeVInt(perDoc.fieldNumbers[i]);
- }
- assert 0 == perDoc.fieldPointers[0];
- long lastPos = perDoc.fieldPointers[0];
- for(int i=1;i<perDoc.numVectorFields;i++) {
- long pos = perDoc.fieldPointers[i];
- tvd.writeVLong(pos-lastPos);
- lastPos = pos;
- }
- perDoc.perDocTvf.writeTo(tvf);
- perDoc.numVectorFields = 0;
- }
-
- assert lastDocID == perDoc.docID: "lastDocID=" + lastDocID + " perDoc.docID=" + perDoc.docID;
-
- lastDocID++;
-
- perDoc.reset();
- free(perDoc);
- assert docWriter.writer.testPoint("TermVectorsTermsWriter.finishDocument end");
- }
-
- @Override
- public void abort() {
- hasVectors = false;
- try {
- IOUtils.closeWhileHandlingException(tvx, tvd, tvf);
- } catch (IOException e) {
- // cannot happen since we suppress exceptions
- throw new RuntimeException(e);
- }
-
- try {
- docWriter.directory.deleteFile(IndexFileNames.segmentFileName(docWriter.getSegment(), IndexFileNames.VECTORS_INDEX_EXTENSION));
- } catch (IOException ignored) {
- }
-
- try {
- docWriter.directory.deleteFile(IndexFileNames.segmentFileName(docWriter.getSegment(), IndexFileNames.VECTORS_DOCUMENTS_EXTENSION));
- } catch (IOException ignored) {
- }
-
- try {
- docWriter.directory.deleteFile(IndexFileNames.segmentFileName(docWriter.getSegment(), IndexFileNames.VECTORS_FIELDS_EXTENSION));
- } catch (IOException ignored) {
- }
-
- tvx = tvd = tvf = null;
- lastDocID = 0;
- }
-
- synchronized void free(PerDoc doc) {
- assert freeCount < docFreeList.length;
- docFreeList[freeCount++] = doc;
- }
-
- class PerDoc extends DocumentsWriter.DocWriter {
-
- final DocumentsWriter.PerDocBuffer buffer = docWriter.newPerDocBuffer();
- RAMOutputStream perDocTvf = new RAMOutputStream(buffer);
-
- int numVectorFields;
-
- int[] fieldNumbers = new int[1];
- long[] fieldPointers = new long[1];
-
- void reset() {
- perDocTvf.reset();
- buffer.recycle();
- numVectorFields = 0;
- }
-
- @Override
- void abort() {
- reset();
- free(this);
- }
-
- void addField(final int fieldNumber) {
- if (numVectorFields == fieldNumbers.length) {
- fieldNumbers = ArrayUtil.grow(fieldNumbers);
- }
- if (numVectorFields == fieldPointers.length) {
- fieldPointers = ArrayUtil.grow(fieldPointers);
- }
- fieldNumbers[numVectorFields] = fieldNumber;
- fieldPointers[numVectorFields] = perDocTvf.getFilePointer();
- numVectorFields++;
- }
-
- @Override
- public long sizeInBytes() {
- return buffer.getSizeInBytes();
- }
-
- @Override
- public void finish() throws IOException {
- finishDocument(this);
- }
- }
-}
fnp / pylucene.git / blobdiff