com.googlecode.wicket.kendo.ui.widget.treeview.TreeNodeFactory Maven / Gradle / Ivy

Go to download
/*
 * Licensed to the Apache Software Foundation (ASF) under one or more
 * contributor license agreements.  See the NOTICE file distributed with
 * this work for additional information regarding copyright ownership.
 * The ASF licenses this file to You 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.
 */
package com.googlecode.wicket.kendo.ui.widget.treeview;

import org.apache.wicket.util.io.IClusterable;
import com.github.openjson.JSONObject;

/**
 * Provides a factory for building {@link TreeNode}{@code s} as JSON
 * 
 * @author Sebastien Briquet - sebfz1
 *
 */
public class TreeNodeFactory implements IClusterable
{
	private static final long serialVersionUID = 1L;

	/** node-id (also identifies the request parameter on ajax call */
	public static final String ID_FIELD = "nid";

	public static final String URL_FIELD = "url";
	public static final String TEXT_FIELD = "text";
	public static final String CHILDREN_FIELD = "hasChildren";

	/**
	 * Converts a {@link TreeNode} to a {@link JSONObject}
	 *
	 * @param index the node's index
	 * @param node the {@code TreeNode}
	 * @return the {@code JSONObject}
	 */
	public JSONObject toJson(int index, TreeNode node)
	{
		JSONObject json = new JSONObject();

		if (node != null)
		{
			json.put(ID_FIELD, node.getId());
			json.put(TEXT_FIELD, node.getText());
			json.put(CHILDREN_FIELD, node.hasChildren());

			if (node.hasUrl())
			{
				json.put(URL_FIELD, node.getUrl());
			}
		}

		return json;
	}
}