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/**
 * ============LICENSE_START=======================================================
 * org.onap.aai
 * ================================================================================
 * Copyright © 2017-2018 AT&T Intellectual Property. All rights reserved.
 * Copyright © 2017-2018 Amdocs
 * ================================================================================
 * 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
 *
 *       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.
 * ============LICENSE_END=========================================================
 */
package org.onap.aai.sa.searchdbabstraction.searchapi;

import com.fasterxml.jackson.annotation.JsonProperty;
import org.radeox.util.logging.Logger;

/**
 * This class represents the structure of a search statement.
 *
 * <p>
 * The expected JSON structure to represent a Completion suggest search statement is as follows:
 *
 * { "suggest-vnf" : { "text" : "VNFs", "completion" : { "field" : "entity_suggest", "size": 1 } } }
 */
public class SuggestionStatement {

    @JsonProperty("results-size")
    private Integer size;

    @JsonProperty("suggest-field")
    private String field;

    @JsonProperty("suggest-text")
    private String text;

    public Integer getSize() {
        return size;
    }

    public void setSize(Integer size) {
        this.size = size;
    }

    public String getField() {
        return field;
    }

    public void setField(String field) {
        this.field = field;
    }

    public String getText() {
        return text;
    }

    public void setText(String text) {
        this.text = text;
    }

    /**
     * This method returns a string which represents this statement in syntax that is understandable
     * by ElasticSearch and is suitable for inclusion in an ElasticSearch query string.
     *
     * @return - ElasticSearch syntax string.
     */
    public String toElasticSearch() {

        StringBuilder sb = new StringBuilder();

        sb.append("{");
        sb.append("\"suggest-vnf\": {");
        sb.append("\"text\": ").append("\"" + text + "\"").append(", ");
        sb.append("\"completion\": {");
        sb.append("\"field\": ").append("\"" + field + "\"").append(", ");
        sb.append("\"size\": ").append(size);
        sb.append("}");
        sb.append("}");
        sb.append("}");

        Logger.debug("Generated raw ElasticSearch suggest statement: " + sb.toString());
        return sb.toString();
    }

}