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/*   Copyright 2013 Rajesh Putta

   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.
 * 
 * 
 */

package com.codesnippets4all.json.parsers;

import java.util.LinkedList;
import java.util.List;
import java.util.Map;
import java.util.TreeMap;

import com.codesnippets4all.json.config.handlers.ConfigHandler;
import com.codesnippets4all.json.config.handlers.JsonConfigHandler;
import com.codesnippets4all.json.config.handlers.ValidationConfigType;
import com.codesnippets4all.json.config.handlers.XmlConfigHandler;
import com.codesnippets4all.json.types.CollectionTypes;

public class JsonParserFactory {
	private static JsonParserFactory instance=null;
	
	private JsonParserFactory()
	{
	}
	
	public static JsonParserFactory getInstance()
	{
		if(instance==null)
		{
			synchronized (JsonParserFactory.class) {
				if(instance==null)
				{
					instance=new JsonParserFactory();
				}
			}
		}
		
		return instance;
	}
	
	public JSONParser newJsonParser()
	{
		JSONParser parser=new JSONParser();
		
		ConfigHandler configHandler=new XmlConfigHandler();
		
		parser.setConfigHandler(configHandler);
		
		return parser;
	}
	
	@SuppressWarnings("rawtypes")
	public JSONParser newJsonParser(ValidationConfigType type)
	{
		JSONParser parser=new JSONParser();
		
		ConfigHandler configHandler=null;
		
		switch(type)
		{
			case JSON: configHandler=new JsonConfigHandler();
					   break;
			case XML:
			default: configHandler=new XmlConfigHandler();
		}

		configHandler.setParserSelfInstance(parser);
		
		parser.setConfigHandler(configHandler);
		
		parser.setCollectionTypes(new CollectionTypes(){
			
			public List getListType() {
				return new LinkedList();
			}
			
			public Map getMapType() {
				return new TreeMap();
			}
		});
		
		return parser;
	}
	
	public JSONParser newJsonParser(CollectionTypes collectionTypes)
	{
		JSONParser parser= newJsonParser();
		parser.setCollectionTypes(collectionTypes);
		return parser;
	}
	
	public JSONParser newJsonParser(ValidationConfigType type, CollectionTypes collectionTypes)
	{
		JSONParser parser=newJsonParser(type);
		parser.setCollectionTypes(collectionTypes);
		return parser;
	}
}