/*
* Copyright 2015 The Netty Project
*
* The Netty Project licenses this file to you under the Apache License,
* version 2.0 (the "License"); you may not use this file except in compliance
* with the License. You may obtain a copy of the License at:
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS, WITHOUT
* WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. See the
* License for the specific language governing permissions and limitations
* under the License.
*/
package io.netty.handler.ssl;
/**
* Provides a way to get the application-level protocol name from ALPN or NPN.
*/
interface ApplicationProtocolAccessor {
/**
* Returns the name of the negotiated application-level protocol.
*
* @return the application-level protocol name or
* {@code null} if the negotiation failed or the client does not have ALPN/NPN extension
*/
String getApplicationProtocol();
}