@Override
    public boolean accept(List<SpanBo> acceptSpanList) {
        for (SpanBo spanBo : acceptSpanList) {
            if (logger.isDebugEnabled()) {
                logger.debug("urlPattern:{} rpc:{}", urlPattern, spanBo.getRpc());
            }
            if (matcher.match(urlPattern, spanBo.getRpc())) {
                return ACCEPT;
            }
        }
        return REJECT;
    }
There are two kinds of URL. ( URL requested by user, URL requesting a backend server)

@author netspider
web/src/main/java/com/navercorp/pinpoint/web/filter/AcceptUrlFilter.java