Http2FrameLogger.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.http2;

import io.netty.buffer.ByteBuf;
import io.netty.buffer.ByteBufUtil;
import io.netty.channel.ChannelHandlerAdapter;
import io.netty.channel.ChannelHandlerContext;
import io.netty.handler.logging.LogLevel;
import io.netty.util.internal.logging.InternalLogLevel;
import io.netty.util.internal.logging.InternalLogger;
import io.netty.util.internal.logging.InternalLoggerFactory;

import static io.netty.util.internal.ObjectUtil.checkNotNull;

/**
 * Logs HTTP2 frames for debugging purposes.
 */
public class Http2FrameLogger extends ChannelHandlerAdapter {

    public enum Direction {
        INBOUND,
        OUTBOUND
    }

    private static final int BUFFER_LENGTH_THRESHOLD = 64;
    private final InternalLogger logger;
    private final InternalLogLevel level;

    public Http2FrameLogger(LogLevel level) {
        this(checkAndConvertLevel(level), InternalLoggerFactory.getInstance(Http2FrameLogger.class));
    }

    public Http2FrameLogger(LogLevel level, String name) {
        this(checkAndConvertLevel(level), InternalLoggerFactory.getInstance(checkNotNull(name, "name")));
    }

    public Http2FrameLogger(LogLevel level, Class<?> clazz) {
        this(checkAndConvertLevel(level), InternalLoggerFactory.getInstance(checkNotNull(clazz, "clazz")));
    }

    private Http2FrameLogger(InternalLogLevel level, InternalLogger logger) {
        this.level = level;
        this.logger = logger;
    }

    private static InternalLogLevel checkAndConvertLevel(LogLevel level) {
// ... (115 more lines)