| /* |
| * 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.solr.schema; |
| |
| import java.io.IOException; |
| import java.util.Map; |
| |
| import org.apache.lucene.index.DocValues; |
| import org.apache.lucene.index.LeafReaderContext; |
| import org.apache.lucene.index.SortedDocValues; |
| import org.apache.lucene.index.SortedSetDocValues; |
| import org.apache.solr.legacy.LegacyNumericUtils; |
| import org.apache.lucene.queries.function.FunctionValues; |
| import org.apache.lucene.queries.function.ValueSource; |
| import org.apache.lucene.queries.function.docvalues.FloatDocValues; |
| import org.apache.lucene.queries.function.valuesource.SortedSetFieldSource; |
| import org.apache.lucene.search.SortedSetSelector; |
| import org.apache.lucene.util.BytesRef; |
| import org.apache.lucene.util.NumericUtils; |
| import org.apache.lucene.util.mutable.MutableValue; |
| import org.apache.lucene.util.mutable.MutableValueFloat; |
| |
| /** |
| * A numeric field that can contain single-precision 32-bit IEEE 754 |
| * floating point values. |
| * |
| * <ul> |
| * <li>Min Value Allowed: 1.401298464324817E-45</li> |
| * <li>Max Value Allowed: 3.4028234663852886E38</li> |
| * </ul> |
| * |
| * <b>NOTE:</b> The behavior of this class when given values of |
| * {@link Float#NaN}, {@link Float#NEGATIVE_INFINITY}, or |
| * {@link Float#POSITIVE_INFINITY} is undefined. |
| * |
| * @see Float |
| * @see <a href="http://java.sun.com/docs/books/jls/third_edition/html/typesValues.html#4.2.3">Java Language Specification, s4.2.3</a> |
| * @deprecated Trie fields are deprecated as of Solr 7.0 |
| */ |
| @Deprecated |
| public class TrieFloatField extends TrieField implements FloatValueFieldType { |
| { |
| type = NumberType.FLOAT; |
| } |
| |
| @Override |
| public Object toNativeType(Object val) { |
| if(val==null) return null; |
| if (val instanceof Number) return ((Number) val).floatValue(); |
| if (val instanceof CharSequence) return Float.parseFloat(val.toString()); |
| return super.toNativeType(val); |
| } |
| |
| @Override |
| protected ValueSource getSingleValueSource(SortedSetSelector.Type choice, SchemaField f) { |
| |
| return new SortedSetFieldSource(f.getName(), choice) { |
| @Override |
| public FunctionValues getValues(@SuppressWarnings({"rawtypes"})Map context, LeafReaderContext readerContext) throws IOException { |
| SortedSetFieldSource thisAsSortedSetFieldSource = this; // needed for nested anon class ref |
| |
| SortedSetDocValues sortedSet = DocValues.getSortedSet(readerContext.reader(), field); |
| SortedDocValues view = SortedSetSelector.wrap(sortedSet, selector); |
| |
| return new FloatDocValues(thisAsSortedSetFieldSource) { |
| private int lastDocID; |
| |
| private boolean setDoc(int docID) throws IOException { |
| if (docID < lastDocID) { |
| throw new IllegalArgumentException("docs out of order: lastDocID=" + lastDocID + " docID=" + docID); |
| } |
| if (docID > view.docID()) { |
| return docID == view.advance(docID); |
| } else { |
| return docID == view.docID(); |
| } |
| } |
| |
| @Override |
| public float floatVal(int doc) throws IOException { |
| if (setDoc(doc)) { |
| BytesRef bytes = view.binaryValue(); |
| assert bytes.length > 0; |
| return NumericUtils.sortableIntToFloat(LegacyNumericUtils.prefixCodedToInt(bytes)); |
| } else { |
| return 0F; |
| } |
| } |
| |
| @Override |
| public boolean exists(int doc) throws IOException { |
| return setDoc(doc); |
| } |
| |
| @Override |
| public ValueFiller getValueFiller() { |
| return new ValueFiller() { |
| private final MutableValueFloat mval = new MutableValueFloat(); |
| |
| @Override |
| public MutableValue getValue() { |
| return mval; |
| } |
| |
| @Override |
| public void fillValue(int doc) throws IOException { |
| if (setDoc(doc)) { |
| mval.exists = true; |
| mval.value = NumericUtils.sortableIntToFloat(LegacyNumericUtils.prefixCodedToInt(view.binaryValue())); |
| } else { |
| mval.exists = false; |
| mval.value = 0F; |
| } |
| } |
| }; |
| } |
| }; |
| } |
| }; |
| } |
| |
| } |