Java List Cast listToJsonArray(List ll, Class toCast, String jsonArrayKey)

Description

list To Json Array

License

Open Source License

Declaration

public static String listToJsonArray(List ll, Class toCast, String jsonArrayKey) 

Method Source Code

//package com.java2s;
/*//w  w w .  j  ava 2s. c o  m
 * Copyright (C) 2012  Krawler Information Systems Pvt Ltd
 * All rights reserved.
 * 
 * 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 2
 * 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, write to the Free Software
 * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA  02110-1301, USA.
*/

import java.util.Iterator;
import java.util.List;

public class Main {
    public static String listToJsonArray(List ll, Class toCast, String jsonArrayKey) {
        StringBuilder temp = new StringBuilder();
        try {
            boolean hasData = false;
            Iterator ite = ll.listIterator();
            temp.append("{\"");
            temp.append(jsonArrayKey);
            temp.append("\":[");
            while (ite.hasNext()) {
                Object newInstance = toCast.cast(ite.next());
                temp.append(newInstance.toString());
                temp.append(",");
                hasData = true;
            }
            if (hasData)
                temp.deleteCharAt(temp.toString().lastIndexOf(','));
            temp.append("]}");
        } catch (Exception e) {
            System.out.print(e.getMessage());
        } finally {
            return temp.toString();
        }
    }
}

Related

1. castTo(final List list, final Class clasz)
2. castToDocumentList(Object obj)
3. castToList(U[] array, Class clazz)
4. castToStringList(Object value)
5. IS_CASTABLE_LIST(Class className, Object obj)
6. toStringList(List