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/*
* Licensed to Elastic Search and Shay Banon under one
* or more contributor license agreements. See the NOTICE file
* distributed with this work for additional information
* regarding copyright ownership. Elastic Search 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.xcontent;
import org.apache.lucene.document.Field;
import org.apache.lucene.document.Fieldable;
import org.apache.lucene.search.*;
import org.apache.lucene.util.NumericUtils;
import org.elasticsearch.index.analysis.NamedAnalyzer;
import org.elasticsearch.index.analysis.NumericLongAnalyzer;
import org.elasticsearch.index.mapper.MapperParsingException;
import org.elasticsearch.util.Numbers;
import org.elasticsearch.util.Strings;
import org.elasticsearch.util.xcontent.XContentParser;
import org.elasticsearch.util.xcontent.builder.XContentBuilder;
import java.io.IOException;
import java.util.Map;
import static org.elasticsearch.index.mapper.xcontent.XContentMapperBuilders.*;
import static org.elasticsearch.index.mapper.xcontent.XContentTypeParsers.*;
import static org.elasticsearch.util.xcontent.support.XContentMapValues.*;
/**
* @author kimchy (shay.banon)
*/
public class XContentLongFieldMapper extends XContentNumberFieldMapper {
public static final String CONTENT_TYPE = "long";
public static class Defaults extends XContentNumberFieldMapper.Defaults {
public static final Long NULL_VALUE = null;
}
public static class Builder extends XContentNumberFieldMapper.Builder {
protected Long nullValue = Defaults.NULL_VALUE;
public Builder(String name) {
super(name);
builder = this;
}
public Builder nullValue(long nullValue) {
this.nullValue = nullValue;
return this;
}
@Override public XContentLongFieldMapper build(BuilderContext context) {
XContentLongFieldMapper fieldMapper = new XContentLongFieldMapper(buildNames(context),
precisionStep, index, store, boost, omitNorms, omitTermFreqAndPositions, nullValue);
fieldMapper.includeInAll(includeInAll);
return fieldMapper;
}
}
public static class TypeParser implements XContentTypeParser {
@Override public XContentMapper.Builder parse(String name, Map node, ParserContext parserContext) throws MapperParsingException {
XContentLongFieldMapper.Builder builder = longField(name);
parseNumberField(builder, name, node, parserContext);
for (Map.Entry entry : node.entrySet()) {
String propName = Strings.toUnderscoreCase(entry.getKey());
Object propNode = entry.getValue();
if (propName.equals("null_value")) {
builder.nullValue(nodeLongValue(propNode));
}
}
return builder;
}
}
private final Long nullValue;
private final String nullValueAsString;
protected XContentLongFieldMapper(Names names, int precisionStep, Field.Index index, Field.Store store,
float boost, boolean omitNorms, boolean omitTermFreqAndPositions,
Long nullValue) {
super(names, precisionStep, index, store, boost, omitNorms, omitTermFreqAndPositions,
new NamedAnalyzer("_long/" + precisionStep, new NumericLongAnalyzer(precisionStep)),
new NamedAnalyzer("_long/max", new NumericLongAnalyzer(Integer.MAX_VALUE)));
this.nullValue = nullValue;
this.nullValueAsString = nullValue == null ? null : nullValue.toString();
}
@Override protected int maxPrecisionStep() {
return 64;
}
@Override public Long value(Fieldable field) {
byte[] value = field.getBinaryValue();
if (value == null) {
return null;
}
return Numbers.bytesToLong(value);
}
@Override public String indexedValue(String value) {
return indexedValue(Long.parseLong(value));
}
@Override public String indexedValue(Long value) {
return NumericUtils.longToPrefixCoded(value);
}
@Override public Object valueFromTerm(String term) {
final int shift = term.charAt(0) - NumericUtils.SHIFT_START_LONG;
if (shift > 0 && shift <= 63) {
return null;
}
return NumericUtils.prefixCodedToLong(term);
}
@Override public Object valueFromString(String text) {
return Long.parseLong(text);
}
@Override public Query rangeQuery(String lowerTerm, String upperTerm, boolean includeLower, boolean includeUpper) {
return NumericRangeQuery.newLongRange(names.indexName(), precisionStep,
lowerTerm == null ? null : Long.parseLong(lowerTerm),
upperTerm == null ? null : Long.parseLong(upperTerm),
includeLower, includeUpper);
}
@Override public Filter rangeFilter(String lowerTerm, String upperTerm, boolean includeLower, boolean includeUpper) {
return NumericRangeFilter.newLongRange(names.indexName(), precisionStep,
lowerTerm == null ? null : Long.parseLong(lowerTerm),
upperTerm == null ? null : Long.parseLong(upperTerm),
includeLower, includeUpper);
}
@Override protected Field parseCreateField(ParseContext context) throws IOException {
long value;
if (context.externalValueSet()) {
Object externalValue = context.externalValue();
if (externalValue == null) {
if (nullValue == null) {
return null;
}
value = nullValue;
} else {
value = ((Number) externalValue).longValue();
}
if (includeInAll == null || includeInAll) {
context.allEntries().addText(names.fullName(), Long.toString(value), boost);
}
} else {
if (context.parser().currentToken() == XContentParser.Token.VALUE_NULL) {
if (nullValue == null) {
return null;
}
value = nullValue;
if (nullValueAsString != null && (includeInAll == null || includeInAll)) {
context.allEntries().addText(names.fullName(), nullValueAsString, boost);
}
} else {
value = context.parser().longValue();
if (includeInAll == null || includeInAll) {
context.allEntries().addText(names.fullName(), context.parser().text(), boost);
}
}
}
Field field = null;
if (stored()) {
field = new Field(names.indexName(), Numbers.longToBytes(value), store);
if (indexed()) {
field.setTokenStream(popCachedStream(precisionStep).setLongValue(value));
}
} else if (indexed()) {
field = new Field(names.indexName(), popCachedStream(precisionStep).setLongValue(value));
}
return field;
}
@Override public int sortType() {
return SortField.LONG;
}
@Override protected String contentType() {
return CONTENT_TYPE;
}
@Override protected void doXContentBody(XContentBuilder builder) throws IOException {
super.doXContentBody(builder);
if (nullValue != null) {
builder.field("null_value", nullValue);
}
if (includeInAll != null) {
builder.field("include_in_all", includeInAll);
}
}
}