public static String toTable()

in dubbo-remoting/dubbo-remoting-api/src/main/java/org/apache/dubbo/remoting/telnet/support/TelnetUtils.java [62:158]

• 86 lines of code
• 21 McCabe index (conditional complexity)

    public static String toTable(List<String> header, List<List<String>> table) {
        int totalWidth = 0;
        int[] widths = new int[header.size()];
        int maxwidth = 70;
        int maxcountbefore = 0;
        for (int j = 0; j < widths.length; j++) {
            widths[j] = Math.max(widths[j], header.get(j).length());
        }
        for (List<String> row : table) {
            int countbefore = 0;
            for (int j = 0; j < widths.length; j++) {
                widths[j] = Math.max(widths[j], row.get(j).length());
                totalWidth = (totalWidth + widths[j]) > maxwidth ? maxwidth : (totalWidth + widths[j]);
                if (j < widths.length - 1) {
                    countbefore = countbefore + widths[j];
                }
            }
            maxcountbefore = Math.max(countbefore, maxcountbefore);
        }
        widths[widths.length - 1] = Math.min(widths[widths.length - 1], maxwidth - maxcountbefore);
        StringBuilder buf = new StringBuilder();
        // line
        buf.append('+');
        for (int j = 0; j < widths.length; j++) {
            for (int k = 0; k < widths[j] + 2; k++) {
                buf.append('-');
            }
            buf.append('+');
        }
        buf.append("\r\n");
        // header
        buf.append('|');
        for (int j = 0; j < widths.length; j++) {
            String cell = header.get(j);
            buf.append(' ');
            buf.append(cell);
            int pad = widths[j] - cell.length();
            if (pad > 0) {
                for (int k = 0; k < pad; k++) {
                    buf.append(' ');
                }
            }
            buf.append(" |");
        }
        buf.append("\r\n");
        // line
        buf.append('+');
        for (int j = 0; j < widths.length; j++) {
            for (int k = 0; k < widths[j] + 2; k++) {
                buf.append('-');
            }
            buf.append('+');
        }
        buf.append("\r\n");
        // content
        for (List<String> row : table) {
            StringBuilder rowbuf = new StringBuilder();
            rowbuf.append('|');
            for (int j = 0; j < widths.length; j++) {
                String cell = row.get(j);
                rowbuf.append(' ');
                int remaining = cell.length();
                while (remaining > 0) {

                    if (rowbuf.length() >= totalWidth) {
                        buf.append(rowbuf.toString());
                        rowbuf = new StringBuilder();
                        //                        for(int m = 0;m < maxcountbefore && maxcountbefore < totalWidth ;
                        // m++){
                        //                            rowbuf.append(" ");
                        //                        }
                    }

                    rowbuf.append(cell, cell.length() - remaining, cell.length() - remaining + 1);
                    remaining--;
                }
                int pad = widths[j] - cell.length();
                if (pad > 0) {
                    for (int k = 0; k < pad; k++) {
                        rowbuf.append(' ');
                    }
                }
                rowbuf.append(" |");
            }
            buf.append(rowbuf).append("\r\n");
        }
        // line
        buf.append('+');
        for (int j = 0; j < widths.length; j++) {
            for (int k = 0; k < widths[j] + 2; k++) {
                buf.append('-');
            }
            buf.append('+');
        }
        buf.append("\r\n");
        return buf.toString();
    }