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/*
 * Copyright 2018 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 io.netty.util.ReferenceCounted;

import javax.net.ssl.SSLException;
import javax.net.ssl.SSLSession;
import java.security.cert.Certificate;

/**
 * {@link SSLSession} that is specific to our native implementation and {@link ReferenceCounted} to track native
 * resources.
 */
interface OpenSslSession extends SSLSession {

    /**
     * Return the {@link OpenSslSessionId} that can be used to identify this session.
     */
    OpenSslSessionId sessionId();

    /**
     * Set the local certificate chain that is used. It is not expected that this array will be changed at all
     * and so its ok to not copy the array.
     */
    void setLocalCertificate(Certificate[] localCertificate);

    /**
     * Set the {@link OpenSslSessionId} for the {@link OpenSslSession}.
     */
    void setSessionId(OpenSslSessionId id);

    @Override
    OpenSslSessionContext getSessionContext();

    /**
     * Expand (or increase) the value returned by {@link #getApplicationBufferSize()} if necessary.
     * 
     * This is only called in a synchronized block, so no need to use atomic operations.
     * @param packetLengthDataOnly The packet size which exceeds the current {@link #getApplicationBufferSize()}.
     */
    void tryExpandApplicationBufferSize(int packetLengthDataOnly);

    /**
     * Called once the handshake has completed.
     */
    void handshakeFinished(byte[] id, String cipher, String protocol, byte[] peerCertificate,
                           byte[][] peerCertificateChain, long creationTime, long timeout) throws SSLException;
}