| /* |
| * 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.index; |
| |
| |
| import java.io.IOException; |
| |
| import org.apache.lucene.codecs.NormsConsumer; |
| import org.apache.lucene.codecs.NormsProducer; |
| import org.apache.lucene.search.DocIdSetIterator; |
| import org.apache.lucene.util.Counter; |
| import org.apache.lucene.util.packed.PackedInts; |
| import org.apache.lucene.util.packed.PackedLongValues; |
| |
| /** Buffers up pending long per doc, then flushes when |
| * segment flushes. */ |
| class NormValuesWriter { |
| |
| private DocsWithFieldSet docsWithField; |
| private PackedLongValues.Builder pending; |
| private final Counter iwBytesUsed; |
| private long bytesUsed; |
| private final FieldInfo fieldInfo; |
| private int lastDocID = -1; |
| |
| public NormValuesWriter(FieldInfo fieldInfo, Counter iwBytesUsed) { |
| docsWithField = new DocsWithFieldSet(); |
| pending = PackedLongValues.deltaPackedBuilder(PackedInts.COMPACT); |
| bytesUsed = pending.ramBytesUsed() + docsWithField.ramBytesUsed(); |
| this.fieldInfo = fieldInfo; |
| this.iwBytesUsed = iwBytesUsed; |
| iwBytesUsed.addAndGet(bytesUsed); |
| } |
| |
| public void addValue(int docID, long value) { |
| if (docID <= lastDocID) { |
| throw new IllegalArgumentException("Norm for \"" + fieldInfo.name + "\" appears more than once in this document (only one value is allowed per field)"); |
| } |
| |
| pending.add(value); |
| docsWithField.add(docID); |
| |
| updateBytesUsed(); |
| |
| lastDocID = docID; |
| } |
| |
| private void updateBytesUsed() { |
| final long newBytesUsed = pending.ramBytesUsed() + docsWithField.ramBytesUsed(); |
| iwBytesUsed.addAndGet(newBytesUsed - bytesUsed); |
| bytesUsed = newBytesUsed; |
| } |
| |
| public void finish(int maxDoc) { |
| } |
| |
| public void flush(SegmentWriteState state, Sorter.DocMap sortMap, NormsConsumer normsConsumer) throws IOException { |
| final PackedLongValues values = pending.build(); |
| final NumericDocValuesWriter.NumericDVs sorted; |
| if (sortMap != null) { |
| sorted = NumericDocValuesWriter.sortDocValues(state.segmentInfo.maxDoc(), sortMap, |
| new BufferedNorms(values, docsWithField.iterator())); |
| } else { |
| sorted = null; |
| } |
| normsConsumer.addNormsField(fieldInfo, |
| new NormsProducer() { |
| @Override |
| public NumericDocValues getNorms(FieldInfo fieldInfo2) { |
| if (fieldInfo != NormValuesWriter.this.fieldInfo) { |
| throw new IllegalArgumentException("wrong fieldInfo"); |
| } |
| if (sorted == null) { |
| return new BufferedNorms(values, docsWithField.iterator()); |
| } else { |
| return new NumericDocValuesWriter.SortingNumericDocValues(sorted); |
| } |
| } |
| |
| @Override |
| public void checkIntegrity() { |
| } |
| |
| @Override |
| public void close() { |
| } |
| |
| @Override |
| public long ramBytesUsed() { |
| return 0; |
| } |
| }); |
| } |
| |
| // TODO: norms should only visit docs that had a field indexed!! |
| |
| // iterates over the values we have in ram |
| private static class BufferedNorms extends NumericDocValues { |
| final PackedLongValues.Iterator iter; |
| final DocIdSetIterator docsWithField; |
| private long value; |
| |
| BufferedNorms(PackedLongValues values, DocIdSetIterator docsWithFields) { |
| this.iter = values.iterator(); |
| this.docsWithField = docsWithFields; |
| } |
| |
| @Override |
| public int docID() { |
| return docsWithField.docID(); |
| } |
| |
| @Override |
| public int nextDoc() throws IOException { |
| int docID = docsWithField.nextDoc(); |
| if (docID != NO_MORE_DOCS) { |
| value = iter.next(); |
| } |
| return docID; |
| } |
| |
| @Override |
| public int advance(int target) { |
| throw new UnsupportedOperationException(); |
| } |
| |
| @Override |
| public boolean advanceExact(int target) throws IOException { |
| throw new UnsupportedOperationException(); |
| } |
| |
| @Override |
| public long cost() { |
| return docsWithField.cost(); |
| } |
| |
| @Override |
| public long longValue() { |
| return value; |
| } |
| } |
| } |
| |