1 /* 2 * Copyright (c) 2005, 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 24 /* 25 * @test 26 * @bug 6275112 27 * @summary Test verifies that imageReaders for base image formats return 28 * meaningful name of service provider interface (SPI) for base image 29 * formats 30 * @modules java.desktop/com.sun.imageio.plugins.gif 31 * java.desktop/com.sun.imageio.plugins.png 32 * java.desktop/com.sun.imageio.plugins.jpeg 33 * java.desktop/com.sun.imageio.plugins.bmp 34 * java.desktop/com.sun.imageio.plugins.wbmp 35 */ 36 37 import javax.imageio.ImageIO; 38 import javax.imageio.ImageReader; 39 import javax.imageio.ImageWriter; 40 import javax.imageio.spi.ImageReaderSpi; 41 42 public class PluginSpiTest { 43 44 public static void main(String[] args) { 45 String format[] = { "GIF", "PNG", "JPEG", "BMP", "WBMP" }; 46 for (int i = 0; i < format.length; i++) { 47 System.out.println("\nFormat " + format[i]); 48 testFormat(format[i]); 49 } 50 } 51 52 public static void testFormat(String format) { 53 ImageReader reader = 54 ImageIO.getImageReadersByFormatName(format).next(); 55 if (reader == null) { 56 throw new RuntimeException("Failed to get reader for " + format); 57 } 58 59 ImageReaderSpi readerSpi = reader.getOriginatingProvider(); 60 System.out.println(format + " Reader SPI: " + readerSpi); 61 62 String writerSpiNames[] = readerSpi.getImageWriterSpiNames(); 63 if (writerSpiNames == null || writerSpiNames.length == 0) { 64 throw new RuntimeException("Failed to get writer spi names for " + 65 format); 66 } 67 68 System.out.println("Available writer spi names:"); 69 for (int i = 0; i < writerSpiNames.length; i++) { 70 System.out.println(writerSpiNames[i]); 71 try { 72 Class spiClass = Class.forName(writerSpiNames[i]); 73 if (spiClass == null) { 74 throw new RuntimeException("Failed to get spi class " + 75 writerSpiNames[i]); 76 } 77 System.out.println("Got class " + spiClass.getName()); 78 79 Object spiObject = spiClass.newInstance(); 80 if (spiObject == null) { 81 throw new RuntimeException("Failed to instantiate spi " + 82 writerSpiNames[i]); 83 } 84 System.out.println("Got instance " + spiObject); 85 } catch (Throwable e) { 86 throw new RuntimeException("Failed to test spi " + 87 writerSpiNames[i]); 88 } 89 } 90 91 ImageWriter writer = ImageIO.getImageWriter(reader); 92 if (writer == null) { 93 throw new RuntimeException("Failed to get writer for " + format); 94 } 95 } 96 }