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Noah_Developer

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[Java] ๊ธธ์ด๋งŒํผ ๋ฌธ์ž์ฑ„์šฐ๊ธฐ
BACK-END/JAVA

[Java] ๊ธธ์ด๋งŒํผ ๋ฌธ์ž์ฑ„์šฐ๊ธฐ

2021. 10. 26. 10:15
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๐Ÿ‘€ ์ž‘์„ฑ๊ณ„๊ธฐ


SFTP ํ˜•์‹์˜ ํŒŒ์ผ ๊ตํ™˜์‹œ์— ๊ธธ์ด๋ฅผ ๊ณ ์ •ํ•œ ์ƒํƒœ๋กœ ๋นˆ ๋ฌธ์ž์—ด์„ 0์œผ๋กœ ์ฑ„์›Œ์•ผํ•˜๋Š” ์—…๋ฌด๊ฐ€ ์žˆ์—ˆ๋‹ค.
์–ด๋–ป๊ฒŒ ํ•ด๊ฒฐํ•ด์•ผ ํ• ์ง€ ๊ณ ๋ฏผ ํ•˜๋‹ค๊ฐ€ ๋นˆ๊ฐ’์„ ์ฑ„์šฐ๋Š” ์•Œ๊ณ ๋ฆฌ์ฆ˜์„ ๋งŒ๋“ค์–ด ๋‘” ์†Œ์Šค๋ฅผ ์ฐพ์„ ์ˆ˜ ์žˆ์—ˆ๋‹ค.

์ž์„ธํ•œ ์„ค๋ช…์€ ์†Œ์Šค์ƒ์— ์ฃผ์„์„ ๋‹ฌ์•„ ์„ค๋ช…ํ•ด๋‘์—ˆ์œผ๋‹ˆ ์ฐธ๊ณ ํ•˜๊ธธ ๋ฐ”๋ž๋‹ˆ๋‹ค.


๐Ÿ’ป ์˜ˆ์ œ์†Œ์Šค

	private final static int LEFT = 0;
	private final static int RIGHT = 1;
	
	/**
	 *	String ํ˜•์˜ ์ž๋ฃŒ๋ฅผ ์ž…๋ ฅ๋ฐ›์•„ ๊ธธ์ด๋งŒํผ ๋ฌธ์ž๋ฅผ ์ฑ„์›Œ์„œ ๋ฆฌํ„ดํ•˜๋Š” method
	 *
	 *	inputData : ์›๋ฐ์ดํƒ€
	 *	align     : 0 - left, 1 - right (์–ด๋А์ชฝ์— ์› ๋ฐ์ดํƒ€๋ฅผ ๋‘˜๊ฑด์ง€...)
	 *	fillSize  : ๋Š˜๋ฆฌ๊ณ ์žํ•˜๋Š” ๊ธธ์ด
	 *	fillChar  : ์ฑ„์šธ ๋ฌธ์ž
	 *
	 *	์˜ˆ) : fmt("string", 1, 10, '0')  =>  "0000string"
	 */
	public static String formatData(String data, int align, int fillSize, char fillChar) {
		if (data == null) {
			data = "";
		}
		byte[] bytes = data.getBytes();
		int len = bytes.length;
		if (len < fillSize) {	// ๋ชจ์ž๋ผ๋Š” ๊ธธ์ด๋งŒํผ ์ฑ„์šธ ๋ฌธ์ž์—ด์„ ๋งŒ๋“ ๋‹ค.
			if (align == LEFT) {
				StringBuffer strbuf = new StringBuffer(data);
				for (int i = len; i < fillSize; i++) {
					strbuf.append(fillChar);
				}
				return strbuf.toString();
			}
			else {
				StringBuffer strbuf = new StringBuffer();
				for (int i = len; i < fillSize; i++) {
					strbuf.append(fillChar);
				}
				strbuf.append(data);
				return strbuf.toString();
			}
		}
		else {	
        	// ์›ํ•˜๋Š” ๊ธธ์ด๋ณด๋‹ค ํฌ๋ฉด ์ž˜๋ผ ๋ณด๋‚ธ๋‹ค.
			// ํ•œ๊ธ€์ด ์ž˜๋ฆฌ๋Š” ๊ฒฝ์šฐ ์ž˜๋ฆฌ๋Š” ๊ธ€์ž๋Š” ์ œ์™ธ
			String tmp = "";
			if(align == LEFT){
				int idx = getUniLength(bytes, fillSize, LEFT);
				tmp = new String(bytes, 0, idx);
				if(idx < fillSize){
					StringBuffer strbuf = new StringBuffer(tmp);
					for(int i=idx; i<fillSize; i++){
						strbuf.append(fillChar);
					}
					return strbuf.toString();
				}else{
					if(tmp.equals("")) tmp = new String(bytes, 0, fillSize-1) + " ";
					return tmp;
				}
			}
			else {
				int idx = getUniLength(bytes, fillSize, RIGHT);
				tmp = new String(bytes, idx, bytes.length-idx);
				if(bytes.length-idx < fillSize){
					StringBuffer strbuf = new StringBuffer();
					for(int i=bytes.length-idx; i<fillSize; i++){
						strbuf.append(fillChar);
					}
					strbuf.append(tmp);
					return strbuf.toString();
				}else{
					if(tmp.equals("")) tmp = new String(bytes, len - fillSize + 1, fillSize) + " ";
					return tmp;
				}
			}
		}
	}
	
	private static int getUniLength(byte[] bytes, int size, int align) {
		
		int idx = 0;
		
		if(align == LEFT) {
			
			for(idx = 0; idx < bytes.length && idx < size ; idx++) {
				if(bytes[idx] > 127 || bytes[idx] < 0) {
					idx++;
				}
			}
			if(idx> size) idx = idx - 2;
			
		} else {
			
			for(idx = 0; idx < bytes.length - size ; idx++) {
				if(bytes[idx] > 127 || bytes[idx] < 0) {
					idx++;
				}
			}
			
		}
		
		return idx;
		
	}
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