MonomorphToJson.java

/* ========================================================================
 * PlantUML : a free UML diagram generator
 * ========================================================================
 *
 * (C) Copyright 2009-2024, Arnaud Roques
 *
 * Project Info:  https://plantuml.com
 * 
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 * under the terms of the GNU General Public License as published by
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 * PlantUML 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 library; if not, write to the Free Software
 * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA  02110-1301,
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 * Original Author:  Arnaud Roques
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 */
package net.sourceforge.plantuml.yaml.parser;

import net.sourceforge.plantuml.json.Json;
import net.sourceforge.plantuml.json.JsonArray;
import net.sourceforge.plantuml.json.JsonObject;
import net.sourceforge.plantuml.json.JsonValue;

public class MonomorphToJson {

	public static JsonValue convert(Monomorph input) {
		if (input.getType() == MonomorphType.SCALAR)
			return Json.value(input.getValue());
		if (input.getType() == MonomorphType.LIST)
			return convertToArray(input);
		if (input.getType() == MonomorphType.MAP)
			return convertToObject(input);
		return null;

	}

	private static JsonArray convertToArray(Monomorph input) {
		final JsonArray result = new JsonArray();
		for (int i = 0; i < input.size(); i++) {
			final Monomorph element = input.getElementAt(i);
			if (element.getType() == MonomorphType.SCALAR)
				result.add(element.getValue());
			else if (element.getType() == MonomorphType.MAP)
				result.add(convertToObject(element));
			else
				throw new UnsupportedOperationException();
		}
		return result;
	}

	private static JsonObject convertToObject(Monomorph input) {
		final JsonObject result = new JsonObject();

		for (String key : input.keys()) {
			final Monomorph element = input.getMapValue(key);
			if (element.getType() == MonomorphType.SCALAR)
				result.add(key, element.getValue());
			else if (element.getType() == MonomorphType.MAP)
				result.add(key, convertToObject(element));
			else if (element.getType() == MonomorphType.LIST)
				result.add(key, convertToArray(element));
			else
				throw new UnsupportedOperationException();

		}
		return result;
	}

}