1 /* 2 * Licensed to the Apache Software Foundation (ASF) under one 3 * or more contributor license agreements. See the NOTICE file 4 * distributed with this work for additional information 5 * regarding copyright ownership. The ASF licenses this file 6 * to you under the Apache License, Version 2.0 (the 7 * "License"); you may not use this file except in compliance 8 * with the License. You may obtain a copy of the License at 9 * 10 * http://www.apache.org/licenses/LICENSE-2.0 11 * 12 * Unless required by applicable law or agreed to in writing, 13 * software distributed under the License is distributed on an 14 * "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY 15 * KIND, either express or implied. See the License for the 16 * specific language governing permissions and limitations 17 * under the License. 18 * 19 */ 20 package org.apache.mina.coap; 21 22 /** 23 * Type of CoAP message : 24 * <ul> 25 * <li>CONFIMABLE : need to be confirmed by a ACK 26 * <li>NON_CONFIRMABLE : fire and forget message 27 * <li>ACK : confirmation of a CONFIRMABLE message 28 * <li>RESET : to reset the session (see the RFC for details) 29 * </ul> 30 * 31 * @author <a href="http://mina.apache.org">Apache MINA Project</a> 32 */ 33 public enum MessageType { 34 CONFIRMABLE(0), NON_CONFIRMABLE(1), ACK(2), RESET(3); 35 36 private final int code; 37 38 private MessageType(int code) { 39 this.code = code; 40 } 41 42 /** 43 * @return the numeric code for this message type 44 */ 45 public int getCode() { 46 return code; 47 } 48 49 /** 50 * Find the {@link MessageType} for the given value code (<code>null</code> if not found) 51 */ 52 public static MessageType fromCode(int code) { 53 for (MessageType t : MessageType.values()) { 54 if (t.getCode() == code) { 55 return t; 56 } 57 } 58 return null; 59 } 60 }