stringutils.java

来自「Speedframework--基于类型元数据的羽量级ORM.完全基于Java类」· Java 代码 · 共 75 行

package org.speedframework.util;

import java.io.Serializable;
import java.lang.reflect.Array;

/**
 * 字符串工具类
 * 
 * @author victorching
 * 
 */

public final class StringUtils {
	/**
	 * 
	 * @param id
	 * @return
	 */

	public static String[] getSerializableID(Serializable id) throws Exception {
		return getkeyList(id);
	}

	/**
	 * 传入的对象序列转换成缓存队列的key值
	 * 
	 * @param id
	 * @return
	 */
	public static String getCacheKey(Serializable id) throws Exception {

		String key = "";
		String[] param = getkeyList(id);
		for (int i = 0; i < param.length; i++) {
			if (i == (param.length - 1)) {
				key += param[i];
			} else {
				key += param[i] + "_";
			}
		}

		return key;

	}
	/**
	 * 对象队列名称
	 * @param clz
	 * @return
	 * @throws Exception
	 */
	public static String getObjectQueueReqion(Class clz)throws Exception{
		return SQLHelper.getExcuteTableName(clz)+"_queue";
		
	}

	private static String[] getkeyList(Serializable id) throws Exception {
		String[] param = null;
		if (id == null) {
			throw new Exception("the id of object is null");
		}
		if (id.getClass().isArray()) {
			int length = Array.getLength(id);
			param = new String[length];
			for (int i = 0; i < length; i++) {
				param[i] = (String) Array.get(id, i);
			}

		} else if (!id.getClass().isArray()) {
			param = new String[] { id.toString() };
		}
		return param;
	}

}