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/*
* Licensed to ElasticSearch and Shay Banon under one
* or more contributor license agreements. See the NOTICE file
* distributed with this work for additional information
* regarding copyright ownership. ElasticSearch 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.elasticsearch.index.mapper.core;
import org.apache.lucene.analysis.NumericTokenStream;
import org.apache.lucene.document.Field;
import org.apache.lucene.document.FieldType;
import org.apache.lucene.index.FieldInfo.IndexOptions;
import org.apache.lucene.search.Filter;
import org.apache.lucene.search.Query;
import org.apache.lucene.util.NumericUtils;
import org.elasticsearch.common.Explicit;
import org.elasticsearch.common.Nullable;
import org.elasticsearch.common.settings.Settings;
import org.elasticsearch.common.xcontent.XContentBuilder;
import org.elasticsearch.index.analysis.NamedAnalyzer;
import org.elasticsearch.index.codec.postingsformat.PostingsFormatProvider;
import org.elasticsearch.index.fielddata.IndexFieldDataService;
import org.elasticsearch.index.mapper.*;
import org.elasticsearch.index.mapper.internal.AllFieldMapper;
import org.elasticsearch.index.query.QueryParseContext;
import org.elasticsearch.index.similarity.SimilarityProvider;
import java.io.IOException;
import java.io.Reader;
/**
*
*/
public abstract class NumberFieldMapper extends AbstractFieldMapper implements AllFieldMapper.IncludeInAll {
public static class Defaults extends AbstractFieldMapper.Defaults {
public static final int PRECISION_STEP = NumericUtils.PRECISION_STEP_DEFAULT;
public static final FieldType FIELD_TYPE = new FieldType(AbstractFieldMapper.Defaults.FIELD_TYPE);
static {
FIELD_TYPE.setTokenized(false);
FIELD_TYPE.setOmitNorms(true);
FIELD_TYPE.setIndexOptions(IndexOptions.DOCS_ONLY);
FIELD_TYPE.setStoreTermVectors(false);
FIELD_TYPE.freeze();
}
public static final Explicit IGNORE_MALFORMED = new Explicit(false, false);
}
public abstract static class Builder extends AbstractFieldMapper.Builder {
protected int precisionStep = Defaults.PRECISION_STEP;
private Boolean ignoreMalformed;
public Builder(String name, FieldType fieldType) {
super(name, fieldType);
}
@Override
public T store(boolean store) {
return super.store(store);
}
@Override
public T boost(float boost) {
return super.boost(boost);
}
@Override
public T indexName(String indexName) {
return super.indexName(indexName);
}
@Override
public T includeInAll(Boolean includeInAll) {
return super.includeInAll(includeInAll);
}
public T precisionStep(int precisionStep) {
this.precisionStep = precisionStep;
return builder;
}
public T ignoreMalformed(boolean ignoreMalformed) {
this.ignoreMalformed = ignoreMalformed;
return builder;
}
protected Explicit ignoreMalformed(BuilderContext context) {
if (ignoreMalformed != null) {
return new Explicit(ignoreMalformed, true);
}
if (context.indexSettings() != null) {
return new Explicit(context.indexSettings().getAsBoolean("index.mapping.ignore_malformed", Defaults.IGNORE_MALFORMED.value()), false);
}
return Defaults.IGNORE_MALFORMED;
}
}
protected int precisionStep;
protected Boolean includeInAll;
protected Explicit ignoreMalformed;
private ThreadLocal tokenStream = new ThreadLocal() {
@Override
protected NumericTokenStream initialValue() {
return new NumericTokenStream(precisionStep);
}
};
protected NumberFieldMapper(Names names, int precisionStep, float boost, FieldType fieldType,
Explicit ignoreMalformed, NamedAnalyzer indexAnalyzer,
NamedAnalyzer searchAnalyzer, PostingsFormatProvider provider, SimilarityProvider similarity,
@Nullable Settings fieldDataSettings) {
// LUCENE 4 UPGRADE: Since we can't do anything before the super call, we have to push the boost check down to subclasses
super(names, boost, fieldType, indexAnalyzer, searchAnalyzer, provider, similarity, fieldDataSettings);
if (precisionStep <= 0 || precisionStep >= maxPrecisionStep()) {
this.precisionStep = Integer.MAX_VALUE;
} else {
this.precisionStep = precisionStep;
}
this.ignoreMalformed = ignoreMalformed;
}
@Override
public void includeInAll(Boolean includeInAll) {
if (includeInAll != null) {
this.includeInAll = includeInAll;
}
}
@Override
public void includeInAllIfNotSet(Boolean includeInAll) {
if (includeInAll != null && this.includeInAll == null) {
this.includeInAll = includeInAll;
}
}
protected abstract int maxPrecisionStep();
public int precisionStep() {
return this.precisionStep;
}
@Override
protected Field parseCreateField(ParseContext context) throws IOException {
RuntimeException e;
try {
return innerParseCreateField(context);
} catch (IllegalArgumentException e1) {
e = e1;
} catch (MapperParsingException e2) {
e = e2;
}
if (ignoreMalformed.value()) {
return null;
} else {
throw e;
}
}
protected abstract Field innerParseCreateField(ParseContext context) throws IOException;
/**
* Use the field query created here when matching on numbers.
*/
@Override
public boolean useTermQueryWithQueryString() {
return true;
}
/**
* Numeric field level query are basically range queries with same value and included. That's the recommended
* way to execute it.
*/
@Override
public Query termQuery(Object value, @Nullable QueryParseContext context) {
return rangeQuery(value, value, true, true, context);
}
/**
* Numeric field level filter are basically range queries with same value and included. That's the recommended
* way to execute it.
*/
@Override
public Filter termFilter(Object value, @Nullable QueryParseContext context) {
return rangeFilter(value, value, true, true, context);
}
@Override
public abstract Query rangeQuery(Object lowerTerm, Object upperTerm, boolean includeLower, boolean includeUpper, @Nullable QueryParseContext context);
@Override
public abstract Filter rangeFilter(Object lowerTerm, Object upperTerm, boolean includeLower, boolean includeUpper, @Nullable QueryParseContext context);
@Override
public abstract Query fuzzyQuery(String value, String minSim, int prefixLength, int maxExpansions, boolean transpositions);
/**
* A range filter based on the field data cache.
*/
public abstract Filter rangeFilter(IndexFieldDataService fieldData, Object lowerTerm, Object upperTerm, boolean includeLower, boolean includeUpper, @Nullable QueryParseContext context);
/**
* Override the default behavior (to return the string, and return the actual Number instance).
*
* @param value
*/
@Override
public Object valueForSearch(Object value) {
return value(value);
}
@Override
public void merge(Mapper mergeWith, MergeContext mergeContext) throws MergeMappingException {
super.merge(mergeWith, mergeContext);
if (!this.getClass().equals(mergeWith.getClass())) {
return;
}
if (!mergeContext.mergeFlags().simulate()) {
NumberFieldMapper nfmMergeWith = (NumberFieldMapper) mergeWith;
this.precisionStep = nfmMergeWith.precisionStep;
this.includeInAll = nfmMergeWith.includeInAll;
if (nfmMergeWith.ignoreMalformed.explicit()) {
this.ignoreMalformed = nfmMergeWith.ignoreMalformed;
}
}
}
@Override
public void close() {
tokenStream.remove();
}
protected NumericTokenStream popCachedStream() {
return tokenStream.get();
}
// used to we can use a numeric field in a document that is then parsed twice!
public abstract static class CustomNumericField extends Field {
protected final NumberFieldMapper mapper;
public CustomNumericField(NumberFieldMapper mapper, Number value, FieldType fieldType) {
super(mapper.names().indexName(), fieldType);
this.mapper = mapper;
if (value != null) {
this.fieldsData = value;
}
}
@Override
public String stringValue() {
return null;
}
@Override
public Reader readerValue() {
return null;
}
public abstract String numericAsString();
}
@Override
protected void doXContentBody(XContentBuilder builder) throws IOException {
super.doXContentBody(builder);
if (ignoreMalformed.explicit()) {
builder.field("ignore_malformed", ignoreMalformed.value());
}
}
@Override
public boolean isNumeric() {
return true;
}
}
