分布式场景全局唯一ID生成工具类(非雪花算法)

public class BizSequenceGenarator {

	private static final String TIME_PATTERN = "yyMMddHHmmss";
	private static String[] paddingzeros = new String[]{"","0","00","000","0000","00000","000000","0000000","00000000","000000000"};
	private static final String WORKER_ID =  String.valueOf(RandomUtils.nextInt(100, 999));

	private final AtomicInteger NEXT_COUNTER;
	private String prefix;
	private int incrMin;
	private int incrMax;
	
	

	public BizSequenceGenarator(String prefix, int incrMax) {
		this.prefix = StringUtils.stripToNull(prefix);
		if(this.prefix != null)this.prefix = this.prefix.toUpperCase();
		this.incrMin = Integer.parseInt("1" + String.valueOf(incrMax).substring(1).replaceAll("[0-9]{1}", "0"));
		this.incrMax = incrMax;
		NEXT_COUNTER = new AtomicInteger(RandomUtils.nextInt(incrMin, incrMax/2));
	}

	public String next() {
		StringBuilder sb = new StringBuilder();
		if(prefix != null)sb.append(prefix);
		sb.append(DateUtils.format(new Date(),TIME_PATTERN));
		sb.append(WORKER_ID);
		sb.append(buildIncrNumSequence());
		return sb.toString();
	}

	private String buildIncrNumSequence() {
		int next = NEXT_COUNTER.incrementAndGet();
		if(incrMax - next < 5){
			next = NEXT_COUNTER.updateAndGet( (x) -> x >= incrMax ? RandomUtils.nextInt(incrMin, incrMax/2) : x + 1);
		}
		String seq = String.valueOf(next);
		//补0
		int len = 5 - seq.length();
		if(len > 0){
			seq = paddingzeros[len] + seq;   
		}
		return seq;
	}
	
	public static void main(String[] args) {
		BizSequenceGenarator genarator = new BizSequenceGenarator("TEST", 9999);
		
		for (int i = 0; i < 10; i++) {
			System.out.println(genarator.next());
		}
	}

}