public BootstrapServer getCache(final String selectorName) {
        return cache.get(selectorName);
    }
getCache.

@param selectorName selectorName
@return BootstrapServer
shenyu-plugin/shenyu-plugin-proxy/shenyu-plugin-tcp/src/main/java/org/apache/shenyu/plugin/tcp/handler/TcpBootstrapFactory.java