| 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 java.io.IOException; |
| |
| import org.apache.lucene.analysis.tokenattributes.OffsetAttribute; |
| import org.apache.lucene.analysis.tokenattributes.PayloadAttribute; |
| import org.apache.lucene.codecs.TermVectorsWriter; |
| import org.apache.lucene.util.ByteBlockPool; |
| import org.apache.lucene.util.BytesRef; |
| import org.apache.lucene.util.RamUsageEstimator; |
| |
| final class TermVectorsConsumerPerField extends TermsHashConsumerPerField { |
| |
| final TermsHashPerField termsHashPerField; |
| final TermVectorsConsumer termsWriter; |
| final FieldInfo fieldInfo; |
| final DocumentsWriterPerThread.DocState docState; |
| final FieldInvertState fieldState; |
| |
| boolean doVectors; |
| boolean doVectorPositions; |
| boolean doVectorOffsets; |
| boolean doVectorPayloads; |
| |
| int maxNumPostings; |
| OffsetAttribute offsetAttribute; |
| PayloadAttribute payloadAttribute; |
| boolean hasPayloads; // if enabled, and we actually saw any for this field |
| |
| public TermVectorsConsumerPerField(TermsHashPerField termsHashPerField, TermVectorsConsumer termsWriter, FieldInfo fieldInfo) { |
| this.termsHashPerField = termsHashPerField; |
| this.termsWriter = termsWriter; |
| this.fieldInfo = fieldInfo; |
| docState = termsHashPerField.docState; |
| fieldState = termsHashPerField.fieldState; |
| } |
| |
| @Override |
| int getStreamCount() { |
| return 2; |
| } |
| |
| @Override |
| boolean start(IndexableField[] fields, int count) { |
| doVectors = false; |
| doVectorPositions = false; |
| doVectorOffsets = false; |
| doVectorPayloads = false; |
| hasPayloads = false; |
| |
| for(int i=0;i<count;i++) { |
| IndexableField field = fields[i]; |
| if (field.fieldType().indexed()) { |
| if (field.fieldType().storeTermVectors()) { |
| doVectors = true; |
| doVectorPositions |= field.fieldType().storeTermVectorPositions(); |
| doVectorOffsets |= field.fieldType().storeTermVectorOffsets(); |
| if (doVectorPositions) { |
| doVectorPayloads |= field.fieldType().storeTermVectorPayloads(); |
| } else if (field.fieldType().storeTermVectorPayloads()) { |
| // TODO: move this check somewhere else, and impl the other missing ones |
| throw new IllegalArgumentException("cannot index term vector payloads without term vector positions (field=\"" + field.name() + "\")"); |
| } |
| } else { |
| if (field.fieldType().storeTermVectorOffsets()) { |
| throw new IllegalArgumentException("cannot index term vector offsets when term vectors are not indexed (field=\"" + field.name() + "\")"); |
| } |
| if (field.fieldType().storeTermVectorPositions()) { |
| throw new IllegalArgumentException("cannot index term vector positions when term vectors are not indexed (field=\"" + field.name() + "\")"); |
| } |
| if (field.fieldType().storeTermVectorPayloads()) { |
| throw new IllegalArgumentException("cannot index term vector payloads when term vectors are not indexed (field=\"" + field.name() + "\")"); |
| } |
| } |
| } else { |
| if (field.fieldType().storeTermVectors()) { |
| throw new IllegalArgumentException("cannot index term vectors when field is not indexed (field=\"" + field.name() + "\")"); |
| } |
| if (field.fieldType().storeTermVectorOffsets()) { |
| throw new IllegalArgumentException("cannot index term vector offsets when field is not indexed (field=\"" + field.name() + "\")"); |
| } |
| if (field.fieldType().storeTermVectorPositions()) { |
| throw new IllegalArgumentException("cannot index term vector positions when field is not indexed (field=\"" + field.name() + "\")"); |
| } |
| if (field.fieldType().storeTermVectorPayloads()) { |
| throw new IllegalArgumentException("cannot index term vector payloads when field is not indexed (field=\"" + field.name() + "\")"); |
| } |
| } |
| } |
| |
| if (doVectors) { |
| termsWriter.hasVectors = true; |
| if (termsHashPerField.bytesHash.size() != 0) { |
| // Only necessary if previous doc hit a |
| // non-aborting exception while writing vectors in |
| // this field: |
| termsHashPerField.reset(); |
| } |
| } |
| |
| // TODO: only if needed for performance |
| //perThread.postingsCount = 0; |
| |
| return doVectors; |
| } |
| |
| public void abort() {} |
| |
| /** Called once per field per document if term vectors |
| * are enabled, to write the vectors to |
| * RAMOutputStream, which is then quickly flushed to |
| * the real term vectors files in the Directory. */ @Override |
| void finish() { |
| if (!doVectors || termsHashPerField.bytesHash.size() == 0) { |
| return; |
| } |
| |
| termsWriter.addFieldToFlush(this); |
| } |
| |
| void finishDocument() throws IOException { |
| assert docState.testPoint("TermVectorsTermsWriterPerField.finish start"); |
| |
| final int numPostings = termsHashPerField.bytesHash.size(); |
| |
| final BytesRef flushTerm = termsWriter.flushTerm; |
| |
| assert numPostings >= 0; |
| |
| if (numPostings > maxNumPostings) |
| maxNumPostings = numPostings; |
| |
| // This is called once, after inverting all occurrences |
| // of a given field in the doc. At this point we flush |
| // our hash into the DocWriter. |
| |
| assert termsWriter.vectorFieldsInOrder(fieldInfo); |
| |
| TermVectorsPostingsArray postings = (TermVectorsPostingsArray) termsHashPerField.postingsArray; |
| final TermVectorsWriter tv = termsWriter.writer; |
| |
| final int[] termIDs = termsHashPerField.sortPostings(); |
| |
| tv.startField(fieldInfo, numPostings, doVectorPositions, doVectorOffsets, hasPayloads); |
| |
| final ByteSliceReader posReader = doVectorPositions ? termsWriter.vectorSliceReaderPos : null; |
| final ByteSliceReader offReader = doVectorOffsets ? termsWriter.vectorSliceReaderOff : null; |
| |
| final ByteBlockPool termBytePool = termsHashPerField.termBytePool; |
| |
| for(int j=0;j<numPostings;j++) { |
| final int termID = termIDs[j]; |
| final int freq = postings.freqs[termID]; |
| |
| // Get BytesRef |
| termBytePool.setBytesRef(flushTerm, postings.textStarts[termID]); |
| tv.startTerm(flushTerm, freq); |
| |
| if (doVectorPositions || doVectorOffsets) { |
| if (posReader != null) { |
| termsHashPerField.initReader(posReader, termID, 0); |
| } |
| if (offReader != null) { |
| termsHashPerField.initReader(offReader, termID, 1); |
| } |
| tv.addProx(freq, posReader, offReader); |
| } |
| tv.finishTerm(); |
| } |
| tv.finishField(); |
| |
| termsHashPerField.reset(); |
| |
| fieldInfo.setStoreTermVectors(); |
| } |
| |
| @Override |
| void start(IndexableField f) { |
| if (doVectorOffsets) { |
| offsetAttribute = fieldState.attributeSource.addAttribute(OffsetAttribute.class); |
| } else { |
| offsetAttribute = null; |
| } |
| if (doVectorPayloads && fieldState.attributeSource.hasAttribute(PayloadAttribute.class)) { |
| payloadAttribute = fieldState.attributeSource.getAttribute(PayloadAttribute.class); |
| } else { |
| payloadAttribute = null; |
| } |
| } |
| |
| void writeProx(TermVectorsPostingsArray postings, int termID) { |
| if (doVectorOffsets) { |
| int startOffset = fieldState.offset + offsetAttribute.startOffset(); |
| int endOffset = fieldState.offset + offsetAttribute.endOffset(); |
| |
| termsHashPerField.writeVInt(1, startOffset - postings.lastOffsets[termID]); |
| termsHashPerField.writeVInt(1, endOffset - startOffset); |
| postings.lastOffsets[termID] = endOffset; |
| } |
| |
| if (doVectorPositions) { |
| final BytesRef payload; |
| if (payloadAttribute == null) { |
| payload = null; |
| } else { |
| payload = payloadAttribute.getPayload(); |
| } |
| |
| final int pos = fieldState.position - postings.lastPositions[termID]; |
| if (payload != null && payload.length > 0) { |
| termsHashPerField.writeVInt(0, (pos<<1)|1); |
| termsHashPerField.writeVInt(0, payload.length); |
| termsHashPerField.writeBytes(0, payload.bytes, payload.offset, payload.length); |
| hasPayloads = true; |
| } else { |
| termsHashPerField.writeVInt(0, pos<<1); |
| } |
| postings.lastPositions[termID] = fieldState.position; |
| } |
| } |
| |
| @Override |
| void newTerm(final int termID) { |
| assert docState.testPoint("TermVectorsTermsWriterPerField.newTerm start"); |
| TermVectorsPostingsArray postings = (TermVectorsPostingsArray) termsHashPerField.postingsArray; |
| |
| postings.freqs[termID] = 1; |
| postings.lastOffsets[termID] = 0; |
| postings.lastPositions[termID] = 0; |
| |
| writeProx(postings, termID); |
| } |
| |
| @Override |
| void addTerm(final int termID) { |
| assert docState.testPoint("TermVectorsTermsWriterPerField.addTerm start"); |
| TermVectorsPostingsArray postings = (TermVectorsPostingsArray) termsHashPerField.postingsArray; |
| |
| postings.freqs[termID]++; |
| |
| writeProx(postings, termID); |
| } |
| |
| @Override |
| void skippingLongTerm() {} |
| |
| @Override |
| ParallelPostingsArray createPostingsArray(int size) { |
| return new TermVectorsPostingsArray(size); |
| } |
| |
| static final class TermVectorsPostingsArray extends ParallelPostingsArray { |
| public TermVectorsPostingsArray(int size) { |
| super(size); |
| freqs = new int[size]; |
| lastOffsets = new int[size]; |
| lastPositions = new int[size]; |
| } |
| |
| int[] freqs; // How many times this term occurred in the current doc |
| int[] lastOffsets; // Last offset we saw |
| int[] lastPositions; // Last position where this term occurred |
| |
| @Override |
| ParallelPostingsArray newInstance(int size) { |
| return new TermVectorsPostingsArray(size); |
| } |
| |
| @Override |
| void copyTo(ParallelPostingsArray toArray, int numToCopy) { |
| assert toArray instanceof TermVectorsPostingsArray; |
| TermVectorsPostingsArray to = (TermVectorsPostingsArray) toArray; |
| |
| super.copyTo(toArray, numToCopy); |
| |
| System.arraycopy(freqs, 0, to.freqs, 0, size); |
| System.arraycopy(lastOffsets, 0, to.lastOffsets, 0, size); |
| System.arraycopy(lastPositions, 0, to.lastPositions, 0, size); |
| } |
| |
| @Override |
| int bytesPerPosting() { |
| return super.bytesPerPosting() + 3 * RamUsageEstimator.NUM_BYTES_INT; |
| } |
| } |
| } |