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Common and utility library for the Service Grid Server Software and java web services.

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/*
 * This is a program for Language Grid Core Node. This combines multiple language resources and provides composite language services.
 * Copyright (C) 2005-2012 NICT Language Grid Project.
 *
 * This program is free software: you can redistribute it and/or modify it 
 * under the terms of the GNU Lesser General Public License as published by 
 * the Free Software Foundation, either version 2.1 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 Lesser 
 * General Public License for more details.
 *
 * You should have received a copy of the GNU Lesser General Public License 
 * along with this program. If not, see .
 */
package jp.go.nict.langrid.commons.lang;

import java.lang.annotation.Annotation;
import java.lang.reflect.Array;

/**
 * 
 * 
 * @author Takao Nakaguchi
 */
public class AnnotationUtil {
	/**
	 * 
	 * 
	 */
	public static  T find(Annotation[] annots, Class clazz){
		for(Annotation a : annots){
			if(a.annotationType().equals(clazz)){
				return clazz.cast(a);
			}
		}
		return null;
	}

	/**
	 * 
	 * 
	 */
	@SuppressWarnings("unchecked")
	public static  T[] find(Annotation[][] annots, Class clazz){
		Object[] ret = new Object[annots.length];
		for(int i = 0; i < ret.length; i++){
			ret[i] = find(annots[i], clazz);
		}
		Object arr = Array.newInstance(clazz, ret.length);
		System.arraycopy(ret, 0, arr, 0, ret.length);
		return (T[])arr;
	}
}