SpdyHeaderBlockRawDecoder.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.spdy;

import io.netty.buffer.ByteBuf;
import io.netty.buffer.ByteBufAllocator;
import io.netty.util.internal.ObjectUtil;

import java.nio.charset.StandardCharsets;

import static io.netty.handler.codec.spdy.SpdyCodecUtil.getSignedInt;

public class SpdyHeaderBlockRawDecoder extends SpdyHeaderBlockDecoder {

    private static final int LENGTH_FIELD_SIZE = 4;

    private final int maxHeaderSize;

    private State state;

    private ByteBuf cumulation;

    private int headerSize;
    private int numHeaders;
    private int length;
    private String name;

    private enum State {
        READ_NUM_HEADERS,
        READ_NAME_LENGTH,
        READ_NAME,
        SKIP_NAME,
        READ_VALUE_LENGTH,
        READ_VALUE,
        SKIP_VALUE,
        END_HEADER_BLOCK,
        ERROR
    }

    public SpdyHeaderBlockRawDecoder(SpdyVersion spdyVersion, int maxHeaderSize) {
        ObjectUtil.checkNotNull(spdyVersion, "spdyVersion");
        this.maxHeaderSize = maxHeaderSize;
        state = State.READ_NUM_HEADERS;
    }

    private static int readLengthField(ByteBuf buffer) {
        int length = getSignedInt(buffer, buffer.readerIndex());
// ... (249 more lines)