content: package com.aliyun.gmsse;
  
  import java.io.ByteArrayOutputStream;
  import java.io.IOException;
  import java.io.PrintWriter;
  import java.io.StringWriter;
  
  public class ClientRandom {
      public int gmtUnixTime;
      public byte[] randomBytes;
  
      public ClientRandom(int gmtUnixTime, byte[] randomBytes) {
        this.gmtUnixTime = gmtUnixTime;
        this.randomBytes = randomBytes;
      }
  
      public byte[] getBytes() throws IOException {
          ByteArrayOutputStream ba = new ByteArrayOutputStream();
          ba.write((gmtUnixTime >>> 24) & 0xFF);
          ba.write((gmtUnixTime >>> 16) & 0xFF);
          ba.write((gmtUnixTime >>> 8) & 0xFF);
          ba.write(gmtUnixTime & 0xFF);
          ba.write(randomBytes);
          return ba.toByteArray();
      }
  
      @Override
      public String toString() {
          StringWriter str = new StringWriter();
          PrintWriter out = new PrintWriter(str);
          out.println("struct {");
          out.println("  gmt_unix_time = " + gmtUnixTime + ";");
          out.println("  random_bytes = " + Util.hexString(randomBytes) + ";");
          out.println("} Random;");
          return str.toString();
      }
  
  }