9d62deeb6f
Motivation: We can use the diamond operator these days. Modification: Use diamond operator whenever possible. Result: More modern code and less boiler-plate.
61 lines
1.9 KiB
Java
61 lines
1.9 KiB
Java
/*
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* Copyright 2014 The Netty Project
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*
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* The Netty Project licenses this file to you under the Apache License,
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* version 2.0 (the "License"); you may not use this file except in compliance
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* with the License. You may obtain a copy of the License at:
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*
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* http://www.apache.org/licenses/LICENSE-2.0
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*
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* Unless required by applicable law or agreed to in writing, software
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* distributed under the License is distributed on an "AS IS" BASIS, WITHOUT
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* WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. See the
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* License for the specific language governing permissions and limitations
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* under the License.
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*/
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package io.netty.handler.codec.mqtt;
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import java.util.Collections;
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import java.util.HashMap;
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import java.util.Map;
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/**
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* Return Code of {@link MqttConnAckMessage}
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*/
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public enum MqttConnectReturnCode {
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CONNECTION_ACCEPTED((byte) 0x00),
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CONNECTION_REFUSED_UNACCEPTABLE_PROTOCOL_VERSION((byte) 0X01),
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CONNECTION_REFUSED_IDENTIFIER_REJECTED((byte) 0x02),
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CONNECTION_REFUSED_SERVER_UNAVAILABLE((byte) 0x03),
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CONNECTION_REFUSED_BAD_USER_NAME_OR_PASSWORD((byte) 0x04),
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CONNECTION_REFUSED_NOT_AUTHORIZED((byte) 0x05);
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private static final Map<Byte, MqttConnectReturnCode> VALUE_TO_CODE_MAP;
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static {
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final Map<Byte, MqttConnectReturnCode> valueMap = new HashMap<>();
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for (MqttConnectReturnCode code: values()) {
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valueMap.put(code.byteValue, code);
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}
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VALUE_TO_CODE_MAP = Collections.unmodifiableMap(valueMap);
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}
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private final byte byteValue;
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MqttConnectReturnCode(byte byteValue) {
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this.byteValue = byteValue;
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}
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public byte byteValue() {
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return byteValue;
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}
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public static MqttConnectReturnCode valueOf(byte b) {
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if (VALUE_TO_CODE_MAP.containsKey(b)) {
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return VALUE_TO_CODE_MAP.get(b);
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}
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throw new IllegalArgumentException("unknown connect return code: " + (b & 0xFF));
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}
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}
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