1 /* 2 * Copyright (c) 2015, 2017, Oracle and/or its affiliates. All rights reserved. 3 * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER. 4 * 5 * This code is free software; you can redistribute it and/or modify it 6 * under the terms of the GNU General Public License version 2 only, as 7 * published by the Free Software Foundation. 8 * 9 * This code is distributed in the hope that it will be useful, but WITHOUT 10 * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or 11 * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License 12 * version 2 for more details (a copy is included in the LICENSE file that 13 * accompanied this code). 14 * 15 * You should have received a copy of the GNU General Public License version 16 * 2 along with this work; if not, write to the Free Software Foundation, 17 * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA. 18 * 19 * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA 20 * or visit www.oracle.com if you need additional information or have any 21 * questions. 22 */ 23 package c; 24 25 import java.security.Provider; 26 import java.security.Security; 27 import java.util.Iterator; 28 import java.util.ServiceLoader; 29 30 /** 31 * A Test client using different mechanism to search the custom security 32 * provider. It uses ClassLoader, ServiceLoader and default mechanism to find 33 * a provider registered through "java.security" extension file. 34 */ 35 public class TestClient { 36 37 public static void main(String[] args) throws Exception { 38 39 Provider p = null; 40 if (args != null && args.length > 1) { 41 switch (args[0]) { 42 case "CL": 43 p = (Provider) Class.forName(args[1]).newInstance(); 44 if (Security.addProvider(p) == -1) { 45 throw new RuntimeException("Failed to add provider"); 46 } 47 break; 48 case "SL": 49 ServiceLoader<Provider> services 50 = ServiceLoader.load(java.security.Provider.class); 51 Iterator<Provider> iterator = services.iterator(); 52 while (iterator.hasNext()) { 53 Provider spr = iterator.next(); 54 if (spr.getName().equals(args[1])) { 55 p = spr; 56 if (Security.addProvider(p) == -1) { 57 throw new RuntimeException( 58 "Failed to add provider"); 59 } 60 break; 61 } 62 } 63 break; 64 case "SPN": 65 case "SPT": 66 p = Security.getProvider(args[1]); 67 break; 68 default: 69 throw new RuntimeException("Invalid argument."); 70 } 71 } 72 if (p == null) { 73 throw new RuntimeException("Provider TestProvider not found"); 74 } 75 System.out.printf("Client: found provider %s", p.getName()); 76 } 77 }