DeflateFrameClientExtensionHandshaker.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.codec.http.websocketx.extensions.compression;

import io.netty.handler.codec.http.websocketx.extensions.WebSocketClientExtension;
import io.netty.handler.codec.http.websocketx.extensions.WebSocketClientExtensionHandshaker;
import io.netty.handler.codec.http.websocketx.extensions.WebSocketExtensionData;
import io.netty.handler.codec.http.websocketx.extensions.WebSocketExtensionDecoder;
import io.netty.handler.codec.http.websocketx.extensions.WebSocketExtensionEncoder;
import io.netty.handler.codec.http.websocketx.extensions.WebSocketExtensionFilterProvider;

import java.util.Collections;

import static io.netty.handler.codec.http.websocketx.extensions.compression.DeflateFrameServerExtensionHandshaker.*;
import static io.netty.util.internal.ObjectUtil.*;

/**
 * <a href="https://tools.ietf.org/id/draft-tyoshino-hybi-websocket-perframe-deflate-06.txt">perframe-deflate</a>
 * handshake implementation.
 */
public final class DeflateFrameClientExtensionHandshaker implements WebSocketClientExtensionHandshaker {

    private final int compressionLevel;
    private final boolean useWebkitExtensionName;
    private final WebSocketExtensionFilterProvider extensionFilterProvider;
    private final int maxAllocation;

    /**
     * Constructor with default configuration.
     *
     * @deprecated
     *            Use {@link DeflateFrameClientExtensionHandshaker#DeflateFrameClientExtensionHandshaker(boolean, int)}.
     */
    @Deprecated
    public DeflateFrameClientExtensionHandshaker(boolean useWebkitExtensionName) {
        this(6, useWebkitExtensionName, 0);
    }

    /**
     * Constructor with default configuration.
     *
     * @param maxAllocation
     *            Maximum size of the decompression buffer. Must be &gt;= 0. If zero, maximum size is not limited.
     */
    public DeflateFrameClientExtensionHandshaker(boolean useWebkitExtensionName, int maxAllocation) {
        this(6, useWebkitExtensionName, maxAllocation);
    }
// ... (120 more lines)