1/* 2 * Licensed to the Apache Software Foundation (ASF) under one or more 3 * contributor license agreements. See the NOTICE file distributed with 4 * this work for additional information regarding copyright ownership. 5 * The ASF licenses this file to You under the Apache License, Version 2.0 6 * (the "License"); you may not use this file except in compliance with 7 * the License. You may obtain a copy of the License at 8 * 9 * http://www.apache.org/licenses/LICENSE-2.0 10 * 11 * Unless required by applicable law or agreed to in writing, software 12 * distributed under the License is distributed on an "AS IS" BASIS, 13 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. 14 * See the License for the specific language governing permissions and 15 * limitations under the License. 16 */ 17 18package org.conscrypt; 19 20import javax.net.ssl.SSLException; 21import javax.net.ssl.SSLHandshakeException; 22 23/** 24 * 25 * Base class for handshake messages 26 */ 27public abstract class Message { 28 29 /* 30 * Message length 31 */ 32 protected int length; 33 34 /** 35 * Returns message type 36 */ 37 abstract int getType(); 38 39 /** 40 * Returns message length 41 */ 42 public int length() { 43 return length; 44 } 45 46 /** 47 * Sends message 48 * @param out 49 */ 50 abstract void send(HandshakeIODataStream out); 51 52 /** 53 * Sends fatal alert 54 * @param description 55 * @param reason 56 */ 57 protected void fatalAlert(byte description, String reason) { 58 throw new AlertException(description, new SSLHandshakeException(reason)); 59 } 60 61 /** 62 * Sends fatal alert 63 * @param description 64 * @param reason 65 * @param cause 66 */ 67 protected void fatalAlert(byte description, String reason, Throwable cause) { 68 throw new AlertException(description, new SSLException(reason, cause)); 69 } 70} 71