com.qwazr.search.field.DoubleDocValuesType.java Source code

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Here is the source code for com.qwazr.search.field.DoubleDocValuesType.java

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/**
 * Copyright 2015-2016 Emmanuel Keller / QWAZR
 * <p>
 * Licensed 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
 * <p>
 * http://www.apache.org/licenses/LICENSE-2.0
 * <p>
 * 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 com.qwazr.search.field;

import com.qwazr.search.index.FieldConsumer;
import com.qwazr.search.index.QueryDefinition;
import org.apache.lucene.document.DoubleDocValuesField;
import org.apache.lucene.index.LeafReader;
import org.apache.lucene.index.NumericDocValues;
import org.apache.lucene.search.SortField;

import java.io.IOException;

class DoubleDocValuesType extends FieldTypeAbstract {

    DoubleDocValuesType(final String fieldName, final FieldDefinition fieldDef) {
        super(fieldName, fieldDef);
    }

    @Override
    final public void fillValue(final Object value, final FieldConsumer consumer) {
        if (value instanceof Number)
            consumer.accept(new DoubleDocValuesField(fieldName, ((Number) value).doubleValue()));
        else
            consumer.accept(new DoubleDocValuesField(fieldName, Double.parseDouble(value.toString())));
    }

    @Override
    final public SortField getSortField(final QueryDefinition.SortEnum sortEnum) {
        final SortField sortField = new SortField(fieldName, SortField.Type.DOUBLE,
                SortUtils.sortReverse(sortEnum));
        SortUtils.sortDoubleMissingValue(sortEnum, sortField);
        return sortField;
    }

    @Override
    final public ValueConverter getConverter(final LeafReader reader) throws IOException {
        NumericDocValues docValues = reader.getNumericDocValues(fieldName);
        if (docValues == null)
            return super.getConverter(reader);
        return new ValueConverter.DoubleDVConverter(docValues);
    }

}