如何在wso2 das中查看哪个分析表绑定到仪表板(How to see which analytic table is bound to the dashboard in wso2 das)

 在1.8中， String#[]方法返回一个Fixnum，它是指定索引处的字节。 在1.9中， String#[]返回一个String，因为字符串由字符组成，字符到字节的映射取决于编码。 看起来您正在使用String作为字节缓冲区，因此您应该使用Array而不是String： 
 
class Array
    def xor(key)
        a = dup
        a.length.times { |n| a[n] ^= key[n % key.size] }
        a
    end
end
 
 然后使用它： 
 
mangled_array = string.codepoints.to_a.xor(key.codepoints.to_a)
 
 然后，如果你真的想要一个String（它将包含一堆不可打印的控制字符和零字节等等），那么： 
 
mangled_string = mangled_array.inject('') { |s,c| s << c }
 
 然后打开包装： 
 
mangled_string.
    codepoints.
    to_a.
    xor(key.codepoints.to_a).
    inject('') { |s,c| s << c }
 
 所有这一切都应该始终保持UTF-8，这就是你想要的。 
 
 您可以将xor修补为Enumerable，并在需要时跳过to_a业务。 您也可以将其调整为String的补丁。 
 
 你不应该再使用String作为字节缓冲区了，你最好使用Fixnum数组来实现显式编码处理。 

In 1.8, the String#[] method returned a Fixnum which was the byte at the specified index. In newer version, String#[] returns a String because strings are made of characters and the character-to-byte mapping depends on the encoding. Looks like you're using a String as a byte buffer so you should be working in Array instead of String:
 
class Array
  def xor(key)
     a = dup
     a.length.times { |n| a[n] ^= key[n % key.size] }
     a
  end
end
 
And then to use it:
 
mangled_array = string.codepoints.to_a.xor(key.codepoints.to_a)
 
Then if you really want a String (which will contain a bunch of unprintable control characters and zero bytes and such things), then:
 
mangled_string = mangled_array.inject('') { |s,c| s << c }
 
And then to unpack:
 
mangled_string.
  codepoints.
  to_a.
  xor(key.codepoints.to_a).
  inject('') { |s,c| s << c }
 
All of this should maintain UTF-8 all the way through and that's what you want.
 
You could probably patch your xor into Enumerable and skip the to_a business if desired. You could probably also adapt this to patch for String as well.
 
You shouldn't be using String for byte buffers anymore, you're better off using arrays of Fixnum for that with explicit encoding handling.