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.apache.harmony.xnet.provider.jsse; 19 20import org.apache.harmony.xnet.provider.jsse.AlertException; 21 22import javax.net.ssl.SSLException; 23import javax.net.ssl.SSLHandshakeException; 24 25/** 26 * 27 * Base class for handshake messages 28 */ 29public abstract class Message { 30 31 /* 32 * Message length 33 */ 34 protected int length; 35 36 /** 37 * Returns message type 38 * @return 39 */ 40 abstract int getType(); 41 42 /** 43 * Returns message length 44 * @return 45 */ 46 public int length() { 47 return length; 48 } 49 50 /** 51 * Sends message 52 * @param out 53 */ 54 abstract void send(HandshakeIODataStream out); 55 56 /** 57 * Sends fatal alert 58 * @param description 59 * @param reason 60 */ 61 protected void fatalAlert(byte description, String reason) { 62 throw new AlertException(description, new SSLHandshakeException(reason)); 63 } 64 65 /** 66 * Sends fatal alert 67 * @param description 68 * @param reason 69 * @param cause 70 */ 71 protected void fatalAlert(byte description, String reason, Throwable cause) { 72 throw new AlertException(description, new SSLException(reason, cause)); 73 } 74} 75