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package com.github.qq275860560.common.util;

import org.apache.commons.lang3.StringUtils;

/**
 * @author [email protected]
 * 
 * 
 *
 */
public class ArrayUtil {

	// @param ids 逗号区分的整型字符串，格式如"1,2,3,4" 返回整型数组

	public static Integer[] convert(String ids) {
		if (StringUtils.isBlank(ids))
			return new Integer[] {};
		String[] idsArr = ids.split(",");
		Integer[] intIds = new Integer[idsArr.length];
		for (int i = 0; i < idsArr.length; ++i) {
			intIds[i] = Integer.valueOf(idsArr[i]);
		}
		return intIds;
	}

	public static String getHexString(byte b) {
		return getHexString(new byte[] { b });
	}

	public static String getHexString(byte[] bytes) {

		StringBuilder sb = new StringBuilder();
		for (byte b : bytes) {
			/*
			 * String hex=Integer.toHexString(b & 0xFF); if(hex.length()==1) { hex="0"+hex;
			 * }
			 */
			String hex = String.format("%02x", b);
			// String hex= String.format("%#04x", b);
			sb.append(hex).append(" ");
		}
		return sb.toString();

	}

	public static String getBinaryString(byte b) {
		return getBinaryString(new byte[] { b });
	}

	public static String getBinaryString(byte[] bytes) {
		StringBuilder sb = new StringBuilder();
		for (byte b : bytes) {
			String hex = String.format("%08d", Integer.valueOf(Integer.toBinaryString(b & 0xff)));
			sb.append(hex).append(" ");
		}
		return sb.toString();

	}

}