org.lambdamatic.internal.elasticsearch.codec.RangeQuerySerializer.java Source code

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Here is the source code for org.lambdamatic.internal.elasticsearch.codec.RangeQuerySerializer.java

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/*******************************************************************************
 * Copyright (c) 2016 Red Hat. All rights reserved. This program and the accompanying materials are
 * made available under the terms of the Eclipse Public License v1.0 which accompanies this
 * distribution, and is available at http://www.eclipse.org/legal/epl-v10.html
 *
 * Contributors: Red Hat - Initial Contribution
 *******************************************************************************/

package org.lambdamatic.internal.elasticsearch.codec;

import java.io.IOException;

import org.lambdamatic.elasticsearch.exceptions.CodecException;
import org.lambdamatic.internal.elasticsearch.searchdsl.RangeQuery;

import com.fasterxml.jackson.core.JsonGenerator;
import com.fasterxml.jackson.core.JsonProcessingException;
import com.fasterxml.jackson.databind.JsonSerializer;
import com.fasterxml.jackson.databind.SerializerProvider;

/**
 * A custom {@link JsonSerializer} for {@link RangeQuery} objects.
 */
public class RangeQuerySerializer extends JsonSerializer<RangeQuery> {

    @Override
    public void serialize(final RangeQuery rangeQuery, final JsonGenerator generator,
            final SerializerProvider serializers) throws IOException, JsonProcessingException {
        generator.writeStartObject();
        generator.writeObjectFieldStart("range");
        generator.writeObjectFieldStart(rangeQuery.getFieldName());
        switch (rangeQuery.getType()) {
        case GT:
            generator.writeObjectField("gt", rangeQuery.getValue());
            break;
        case GTE:
            generator.writeObjectField("gte", rangeQuery.getValue());
            break;
        default:
            throw new CodecException("Unsupported (yet range type: " + rangeQuery.getType());
        }
        if (rangeQuery.getBoostFactor() != 1.0f) {
            generator.writeNumberField("boost", rangeQuery.getBoostFactor());
        }
        generator.writeEndObject();
        generator.writeEndObject();
        generator.writeEndObject();
    }
}