/*
 * JBoss, Home of Professional Open Source.
 * Copyright 2018 Red Hat, Inc., and individual contributors
 * as indicated by the @author tags.
 * Licensed 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.undertow.protocols.alpn;

import java.util.function.Function;

import javax.net.ssl.SSLEngine;

public interface ALPNEngineManager {

    /**
     * @return The priority of this provider, higher priority managers will be tried first
     */
    int getPriority();

    /**
     * @param engine           The original SSL Engine
     * @param selectedFunction A function that must be called when the Underlying SSL engine has been selected. The return value of this callback may be a wrapped engine, which must replace the selected engine
     * @return <code>true</code> if the engine was registered, false otherwise
     */
    boolean registerEngine(SSLEngine engine, Function<SSLEngine, SSLEngine> selectedFunction);

}
