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/**
 * ============LICENSE_START=======================================================
 * org.onap.aai
 * ================================================================================
 * Copyright © 2017 AT&T Intellectual Property. All rights reserved.
 * Copyright © 2017 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=========================================================
 *
 * ECOMP is a trademark and service mark of AT&T Intellectual Property.
 */
package org.openecomp.sa.searchdbabstraction.searchapi;

public class Sort {

  private String field;
  private SortDirection order = null;

  public enum SortDirection {
    ascending,
    descending
  }

  public String getField() {
    return field;
  }

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

  public SortDirection getOrder() {
    return order;
  }

  public void setOrder(SortDirection order) {
    this.order = order;
  }

  public String toElasticSearch() {

    StringBuilder sb = new StringBuilder();

    sb.append("{ \"").append(field).append("\": { \"order\": ");

    // If a sort order wasn't explicitly supplied, default to 'ascending'.
    if (order != null) {
      switch (order) {
        case ascending:
          sb.append("\"asc\"}}");
          break;
        case descending:
          sb.append("\"desc\"}}");
          break;
        default:
      }
    } else {
      sb.append("\"asc\"}}");
    }

    return sb.toString();
  }
}