/**
 * Copyright 1999-2014 dangdang.com.
 *  
 * 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.dangdang.config.service.support.spring;

import com.dangdang.config.service.ConfigGroup;
import org.springframework.core.env.MutablePropertySources;
import org.springframework.core.env.PropertySources;

/**
 * Factory to create PropertySource for configuration group
 * 
 * @author Wang Yuxuan
 *
 */
public class ConfigGroupSourceFactory {

	public static PropertySources create(ConfigGroup... configGroups) {
		final MutablePropertySources sources = new MutablePropertySources();
		for (ConfigGroup configGroup : configGroups) {
			if (configGroup.isEnumerable()) {
				sources.addLast(new ConfigGroupEnumerableResource(configGroup));
			} else {
				sources.addLast(new ConfigGroupResource(configGroup));
			}
		}
		return sources;
	}

}