1 /* 2 * CDDL HEADER START 3 * 4 * The contents of this file are subject to the terms of the 5 * Common Development and Distribution License (the "License"). 6 * You may not use this file except in compliance with the License. 7 * 8 * You can obtain a copy of the license at usr/src/OPENSOLARIS.LICENSE 9 * or http://www.opensolaris.org/os/licensing. 10 * See the License for the specific language governing permissions 11 * and limitations under the License. 12 * 13 * When distributing Covered Code, include this CDDL HEADER in each 14 * file and include the License file at usr/src/OPENSOLARIS.LICENSE. 15 * If applicable, add the following below this CDDL HEADER, with the 16 * fields enclosed by brackets "[]" replaced with your own identifying 17 * information: Portions Copyright [yyyy] [name of copyright owner] 18 * 19 * CDDL HEADER END 20 */ 21 /* 22 * Copyright (c) 2001 by Sun Microsystems, Inc. 23 * All rights reserved. 24 */ 25 26 // 27 // Assert.java : Handles assertions in a central fashion. 28 // 29 // Author: Erik Guttman 30 // 31 // 32 33 package com.sun.slp; 34 35 import java.util.*; 36 import java.text.*; 37 38 /** 39 * The Assert class is used to test assertions and end the program 40 * execution if the assertion fails. 41 * 42 * @author Erik Guttman 43 */ 44 45 class Assert { slpassert(boolean bool, String msgTag, Object[] params)46 static void slpassert(boolean bool, String msgTag, Object[] params) { 47 if (bool == false) { 48 SLPConfig conf = SLPConfig.getSLPConfig(); 49 printMessageAndDie(conf, msgTag, params); 50 } 51 } 52 53 // Print message and die. Used within SLPConfig during initialization. 54 static void printMessageAndDie(SLPConfig conf, String msgTag, Object[] params)55 printMessageAndDie(SLPConfig conf, String msgTag, Object[] params) { 56 ResourceBundle msgs = conf.getMessageBundle(conf.getLocale()); 57 String failed = msgs.getString("assert_failed"); 58 String msg = conf.formatMessage(msgTag, params); 59 System.err.println(failed+msg); 60 (new Exception()).printStackTrace(); // tells where we are at... 61 System.exit(-1); 62 } 63 64 // Assert that a parameter is nonnull. 65 // Throw IllegalArgumentException if so. 66 nonNullParameter(Object obj, String param)67 static void nonNullParameter(Object obj, String param) { 68 if (obj == null) { 69 SLPConfig conf = SLPConfig.getSLPConfig(); 70 String msg = 71 conf.formatMessage("null_parameter", new Object[] {param}); 72 throw 73 new IllegalArgumentException(msg); 74 } 75 } 76 } 77