BrotliEncoder.java — netty Source File

Source Code

/*
 * Copyright 2021 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.compression;

import com.aayushatharva.brotli4j.encoder.BrotliEncoderChannel;
import com.aayushatharva.brotli4j.encoder.Encoder;
import io.netty.buffer.ByteBuf;
import io.netty.buffer.Unpooled;
import io.netty.channel.Channel;
import io.netty.channel.ChannelFuture;
import io.netty.channel.ChannelHandler;
import io.netty.channel.ChannelHandlerContext;
import io.netty.channel.ChannelPromise;
import io.netty.handler.codec.MessageToByteEncoder;
import io.netty.util.AttributeKey;
import io.netty.util.ReferenceCountUtil;
import io.netty.util.internal.ObjectUtil;

import java.io.IOException;
import java.nio.ByteBuffer;
import java.nio.channels.ClosedChannelException;
import java.nio.channels.WritableByteChannel;

/**
 * Compress a {@link ByteBuf} with the Brotli compression.
 * <p>
 * See <a href="https://github.com/google/brotli">brotli</a>.
 */
@ChannelHandler.Sharable
public final class BrotliEncoder extends MessageToByteEncoder<ByteBuf> {

    private static final AttributeKey<Writer> ATTR = AttributeKey.valueOf("BrotliEncoderWriter");

    private final Encoder.Parameters parameters;
    private final boolean isSharable;
    private Writer writer;

    /**
     * Create a new {@link BrotliEncoder} Instance with {@link BrotliOptions#DEFAULT}
     * and {@link #isSharable()} set to {@code true}
     */
    public BrotliEncoder() {
        this(BrotliOptions.DEFAULT);
    }

    /**
     * Create a new {@link BrotliEncoder} Instance
// ... (220 more lines)