QueryField.java

package nl.knaw.huygens.alexandria.api.model.search;

/*
 * #%L
 * alexandria-api
 * =======
 * Copyright (C) 2015 - 2017 Huygens ING (KNAW)
 * =======
 * This program is free software: you can redistribute it and/or modify
 * it under the terms of the GNU General Public License as
 * published by the Free Software Foundation, either version 3 of the
 * License, or (at your option) any later version.
 * 
 * This program is distributed in the hope that it will be useful,
 * but WITHOUT ANY WARRANTY; without even the implied warranty of
 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
 * GNU General Public License for more details.
 * 
 * You should have received a copy of the GNU General Public
 * License along with this program.  If not, see
 * <http://www.gnu.org/licenses/gpl-3.0.html>.
 * #L%
 */

import static java.util.stream.Collectors.toList;

import java.util.Arrays;
import java.util.List;

import com.google.common.collect.ImmutableList;

public enum QueryField {
  id, //
  url, //
  when, //
  who, //
  why, //
  type, //
  value, //
  state, //
  resource_id, //
  subresource_id, //
  resource_ref, //
  subresource_sub, //
  resource_url, //
  subresource_url;

  public static final ImmutableList<QueryField> RESOURCE_FIELDS = ImmutableList.of(//
      resource_id, resource_url, resource_ref, //
      subresource_id, subresource_url, subresource_sub//
  );

  public static final List<String> ALL_EXTERNAL_NAMES = Arrays.stream(values())//
      .map(QueryField::externalName)//
      .collect(toList());

  public String externalName() {
    return name().replace('_', '.');
  }

  public static QueryField fromExternalName(String externalName) {
    return valueOf(externalName.replace('.', '_'));
  }

}