ServiceRegistryRestriction.java revision 12639:baa9838343d8
1/* 2 * Copyright (c) 2015, 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 24/* 25 * @test 26 * @bug 8068749 27 * @run main ServiceRegistryRestriction 28 * @summary Tests ServiceRegistry's restriction on handling 29 * only standard Image I/O service types. 30 */ 31 32import java.util.*; 33import java.util.function.Consumer; 34import javax.imageio.spi.*; 35 36public class ServiceRegistryRestriction { 37 static class DummyTestSpi { 38 } 39 40 ClassLoader cl = ServiceRegistryRestriction.class.getClassLoader(); 41 42 <T> void construct(Class<T> clazz) { 43 List<Class<?>> list = Arrays.<Class<?>>asList(clazz); 44 ServiceRegistry sr = new ServiceRegistry(list.iterator()); 45 } 46 47 <T> void lookup(Class<T> clazz) { 48 Iterator<T> i = ServiceRegistry.lookupProviders(clazz); 49 } 50 51 <T> void lookupCL(Class<T> clazz) { 52 Iterator<T> i = ServiceRegistry.lookupProviders(clazz, cl); 53 } 54 55 <T> void doOneTest(String label, Class<T> clazz, boolean expectFail, Consumer<Class<T>> op) { 56 System.out.printf("testing %s with %s...", label, clazz.getName()); 57 try { 58 op.accept(clazz); 59 if (expectFail) { 60 throw new AssertionError("fail, operation succeeded unexpectedly"); 61 } else { 62 System.out.println("success"); 63 } 64 } catch (IllegalArgumentException iae) { 65 if (expectFail) { 66 System.out.println("success, got expected IAE"); 67 } else { 68 throw new AssertionError("fail, unexpected exception", iae); 69 } 70 } 71 } 72 73 void doTests(Class<?> clazz, boolean expectFail) { 74 doOneTest("constructor", clazz, expectFail, this::construct); 75 doOneTest("lookup", clazz, expectFail, this::lookup); 76 doOneTest("lookupCL", clazz, expectFail, this::lookupCL); 77 } 78 79 void run() { 80 doTests(ImageInputStreamSpi.class, false); 81 doTests(ImageOutputStreamSpi.class, false); 82 doTests(ImageReaderSpi.class, false); 83 doTests(ImageTranscoderSpi.class, false); 84 doTests(ImageWriterSpi.class, false); 85 doTests(DummyTestSpi.class, true); 86 } 87 88 public static void main(String[] args) { 89 new ServiceRegistryRestriction().run(); 90 } 91} 92