public static Map parseQueryString()

in gateway-util-common/src/main/java/org/apache/knox/gateway/util/HttpUtils.java [64:108]

• 45 lines of code
• 13 McCabe index (conditional complexity)

  public static Map<String,String[]> parseQueryString( String queryString ) {
    Map<String,String[]> map = new LinkedHashMap<>();
    if( queryString != null && !queryString.isEmpty() ) {
      StringTokenizer parser = new StringTokenizer( queryString, "&?;=", true );
      String name = null;
      String value = null;
      while( parser.hasMoreTokens() ) {
        String token = parser.nextToken();
        String ttoken = token.trim();
        if( ttoken.length() == 1 ) {
          char c = ttoken.charAt( 0 );
          switch( c ) {
            case '&':
            case '?':
            case ';':
              addQueryStringParam( map, name, value );
              name = null;
              value = null;
              continue;
            case '=':
              if( name == null ) {
                name = "";
                value = "";
              } else if( name.isEmpty() ) {
                addQueryStringParam( map, name, value );
                name = "";
                value = "";
              } else {
                value = "";
              }
              continue;
          }
        }
        if( name == null ) {
          name = token;
        } else {
          value = token;
        }
      } // while
      if( name != null ) {
        addQueryStringParam( map, name, value );
      }
    }
    return map;
  }