public String getName()

in empire-db/src/main/java/org/apache/empire/db/expr/column/DBValueExpr.java [131:160]

• 30 lines of code
• 14 McCabe index (conditional complexity)

    public String getName()
    {
        if (name==null)
        {   // generate name
            String str = String.valueOf(value);
            int i = 0;
            int l = Math.min(str.length(), 20);
            for (boolean valid = true; i<l; i++)
            {   char c = str.charAt(i);
                if (c=='-' && i==0)
                    continue;
                valid = (c==' ' || (c>='0' && c<='9') || (c>='A' && c<='Z') || (c>='a' && c<='z'));
                if (!valid)
                    break;
            }
            str = str.substring((str.charAt(0)=='-' ? 1 : 0), i);
            if (StringUtils.isNotEmpty(str))
            {   // generate from value string
                char c = str.charAt(0);
                if (c>='0' && c<='9')
                    str = "N"+str;
                name = "VAL_"+str.replace(' ','_').toUpperCase(); 
            }
            else
            {   // default
                name = "VALUE";
            }
        }
        return name;
    }