// 
// Copyright 2011 Kuali Foundation, Inc. Licensed under the
// Educational Community 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.opensource.org/licenses/ecl2.php
// 
// 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 org.kuali.continuity.dao.jpa;

import java.util.HashMap;
import java.util.List;
import java.util.Map;

import org.kuali.continuity.domain.UIImage;
import org.kuali.continuity.domain.UIImageEnum;

public class UIImageUtil {
	
	private static UIImageUtil instance = new UIImageUtil();
	
	private UIImageUtil() {
		
	}

	public static UIImageUtil getInstance() {
		return instance;
	}
	
	public Map<UIImageEnum, UIImage> getUIImages(List<? extends UIImage> uiImageList) {
		Map<UIImageEnum, UIImage> uiImageMap = new HashMap<UIImageEnum, UIImage>();
		for (UIImage uiImage : uiImageList) {
			String name = uiImage.getName();
			UIImageEnum uiImageEnum = this.getUIImageEnum(name);
			if (uiImageEnum == null) continue;
			uiImageMap.put(uiImageEnum, uiImage);
		}
		return uiImageMap;
	}
	
	private UIImageEnum getUIImageEnum(String name) {
		try {
			// check instruction enums
			UIImageEnum uiImageEnum = (UIImageEnum) Enum.valueOf(UIImageEnum.class, name);
			return uiImageEnum;
		} catch (IllegalArgumentException e) {
			// ignore;
			return null;
		}
	}

}
