io.undertow.protocols.alpn.JDK8HackAlpnProvider Maven / Gradle / Ivy

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This artifact provides a single jar that contains all classes required to use remote Jakarta Enterprise Beans and Jakarta Messaging, including all dependencies. It is intended for use by those not using maven, maven users should just import the Jakarta Enterprise Beans and Jakarta Messaging BOM's instead (shaded JAR's cause lots of problems with maven, as it is very easy to inadvertently end up with different versions on classes on the class path).

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/*
 * JBoss, Home of Professional Open Source.
 * Copyright 2014 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.Arrays;
import javax.net.ssl.SSLEngine;

import io.undertow.protocols.ssl.ALPNHackSSLEngine;

/**
 * Open listener adaptor for ALPN connections that uses the SSLExplorer based approach and hack into the JDK8
 * SSLEngine via reflection.
 *
 * @author Stuart Douglas
 */
public class JDK8HackAlpnProvider implements ALPNProvider {

    @Override
    public boolean isEnabled(SSLEngine sslEngine) {
        return ALPNHackSSLEngine.isEnabled(sslEngine);
    }

    @Override
    public SSLEngine setProtocols(SSLEngine engine, String[] protocols) {
        ALPNHackSSLEngine newEngine = engine instanceof ALPNHackSSLEngine ? (ALPNHackSSLEngine) engine : new ALPNHackSSLEngine(engine);
        newEngine.setApplicationProtocols(Arrays.asList(protocols));
        return newEngine;
    }

    @Override
    public String getSelectedProtocol(SSLEngine engine) {
        return ((ALPNHackSSLEngine) engine).getSelectedApplicationProtocol();
    }

    @Override
    public int getPriority() {
        return 200;
    }

    @Override
    public String toString() {
        return "JDK8AlpnProvider";
    }
}