JdkBaseApplicationProtocolNegotiator.java — netty Source File

Source Code

/*
 * Copyright 2014 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:
 *
 *   https://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;

import static io.netty.handler.ssl.ApplicationProtocolUtil.toList;
import static io.netty.util.internal.ObjectUtil.checkNotNull;

import java.util.Collections;
import java.util.List;
import java.util.Set;

import javax.net.ssl.SSLEngine;
import javax.net.ssl.SSLHandshakeException;

/**
 * Common base class for {@link JdkApplicationProtocolNegotiator} classes to inherit from.
 */
class JdkBaseApplicationProtocolNegotiator implements JdkApplicationProtocolNegotiator {
    private final List<String> protocols;
    private final ProtocolSelectorFactory selectorFactory;
    private final ProtocolSelectionListenerFactory listenerFactory;
    private final SslEngineWrapperFactory wrapperFactory;

    /**
     * Create a new instance.
     * @param wrapperFactory Determines which application protocol will be used by wrapping the SSLEngine in use.
     * @param selectorFactory How the peer selecting the protocol should behave.
     * @param listenerFactory How the peer being notified of the selected protocol should behave.
     * @param protocols The order of iteration determines the preference of support for protocols.
     */
    JdkBaseApplicationProtocolNegotiator(SslEngineWrapperFactory wrapperFactory,
            ProtocolSelectorFactory selectorFactory, ProtocolSelectionListenerFactory listenerFactory,
            Iterable<String> protocols) {
        this(wrapperFactory, selectorFactory, listenerFactory, toList(protocols));
    }

    /**
     * Create a new instance.
     * @param wrapperFactory Determines which application protocol will be used by wrapping the SSLEngine in use.
     * @param selectorFactory How the peer selecting the protocol should behave.
     * @param listenerFactory How the peer being notified of the selected protocol should behave.
     * @param protocols The order of iteration determines the preference of support for protocols.
     */
    JdkBaseApplicationProtocolNegotiator(SslEngineWrapperFactory wrapperFactory,
            ProtocolSelectorFactory selectorFactory, ProtocolSelectionListenerFactory listenerFactory,
            String... protocols) {
        this(wrapperFactory, selectorFactory, listenerFactory, toList(protocols));
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