MqttDecoder.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.mqtt;

import io.netty.buffer.ByteBuf;
import io.netty.channel.ChannelHandlerContext;
import io.netty.handler.codec.DecoderException;
import io.netty.handler.codec.ReplayingDecoder;
import io.netty.handler.codec.TooLongFrameException;
import io.netty.handler.codec.mqtt.MqttDecoder.DecoderState;
import io.netty.handler.codec.mqtt.MqttProperties.IntegerProperty;
import io.netty.util.CharsetUtil;
import io.netty.util.internal.ObjectUtil;

import java.util.ArrayList;
import java.util.List;

import static io.netty.handler.codec.mqtt.MqttCodecUtil.isValidClientId;
import static io.netty.handler.codec.mqtt.MqttCodecUtil.isValidMessageId;
import static io.netty.handler.codec.mqtt.MqttCodecUtil.isValidPublishTopicName;
import static io.netty.handler.codec.mqtt.MqttCodecUtil.resetUnusedFields;
import static io.netty.handler.codec.mqtt.MqttCodecUtil.validateFixedHeader;
import static io.netty.handler.codec.mqtt.MqttConstant.DEFAULT_MAX_BYTES_IN_MESSAGE;
import static io.netty.handler.codec.mqtt.MqttConstant.DEFAULT_MAX_CLIENT_ID_LENGTH;
import static io.netty.handler.codec.mqtt.MqttProperties.ASSIGNED_CLIENT_IDENTIFIER;
import static io.netty.handler.codec.mqtt.MqttProperties.AUTHENTICATION_DATA;
import static io.netty.handler.codec.mqtt.MqttProperties.AUTHENTICATION_METHOD;
import static io.netty.handler.codec.mqtt.MqttProperties.CONTENT_TYPE;
import static io.netty.handler.codec.mqtt.MqttProperties.CORRELATION_DATA;
import static io.netty.handler.codec.mqtt.MqttProperties.MAXIMUM_PACKET_SIZE;
import static io.netty.handler.codec.mqtt.MqttProperties.MAXIMUM_QOS;
import static io.netty.handler.codec.mqtt.MqttProperties.PAYLOAD_FORMAT_INDICATOR;
import static io.netty.handler.codec.mqtt.MqttProperties.PUBLICATION_EXPIRY_INTERVAL;
import static io.netty.handler.codec.mqtt.MqttProperties.REASON_STRING;
import static io.netty.handler.codec.mqtt.MqttProperties.RECEIVE_MAXIMUM;
import static io.netty.handler.codec.mqtt.MqttProperties.REQUEST_PROBLEM_INFORMATION;
import static io.netty.handler.codec.mqtt.MqttProperties.REQUEST_RESPONSE_INFORMATION;
import static io.netty.handler.codec.mqtt.MqttProperties.RESPONSE_INFORMATION;
import static io.netty.handler.codec.mqtt.MqttProperties.RESPONSE_TOPIC;
import static io.netty.handler.codec.mqtt.MqttProperties.RETAIN_AVAILABLE;
import static io.netty.handler.codec.mqtt.MqttProperties.SERVER_KEEP_ALIVE;
import static io.netty.handler.codec.mqtt.MqttProperties.SERVER_REFERENCE;
import static io.netty.handler.codec.mqtt.MqttProperties.SESSION_EXPIRY_INTERVAL;
import static io.netty.handler.codec.mqtt.MqttProperties.SHARED_SUBSCRIPTION_AVAILABLE;
import static io.netty.handler.codec.mqtt.MqttProperties.SUBSCRIPTION_IDENTIFIER;
import static io.netty.handler.codec.mqtt.MqttProperties.SUBSCRIPTION_IDENTIFIER_AVAILABLE;
// ... (778 more lines)