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1: /* DefaultContentHandlerFactory.java 2: Copyright (C) 2004 Free Software Foundation, Inc. 3: 4: This file is part of GNU Classpath. 5: 6: GNU Classpath is free software; you can redistribute it and/or modify 7: it under the terms of the GNU General Public License as published by 8: the Free Software Foundation; either version 2, or (at your option) 9: any later version. 10: 11: GNU Classpath is distributed in the hope that it will be useful, but 12: WITHOUT ANY WARRANTY; without even the implied warranty of 13: MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU 14: General Public License for more details. 15: 16: You should have received a copy of the GNU General Public License 17: along with GNU Classpath; see the file COPYING. If not, write to the 18: Free Software Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 19: 02110-1301 USA. 20: 21: Linking this library statically or dynamically with other modules is 22: making a combined work based on this library. Thus, the terms and 23: conditions of the GNU General Public License cover the whole 24: combination. 25: 26: As a special exception, the copyright holders of this library give you 27: permission to link this library with independent modules to produce an 28: executable, regardless of the license terms of these independent 29: modules, and to copy and distribute the resulting executable under 30: terms of your choice, provided that you also meet, for each linked 31: independent module, the terms and conditions of the license of that 32: module. An independent module is a module which is not derived from 33: or based on this library. If you modify this library, you may extend 34: this exception to your version of the library, but you are not 35: obligated to do so. If you do not wish to do so, delete this 36: exception statement from your version. */ 37: 38: 39: package gnu.java.net; 40: 41: import java.awt.Toolkit; 42: import java.io.IOException; 43: import java.net.ContentHandler; 44: import java.net.ContentHandlerFactory; 45: import java.net.URLConnection; 46: import java.util.Arrays; 47: import java.util.HashSet; 48: 49: import gnu.java.awt.ClasspathToolkit; 50: 51: /** Content Handler for Image types, using the AWT Toolkit's image decoder. */ 52: class ImageHandler extends ContentHandler 53: { 54: static ImageHandler instance = new ImageHandler(); 55: 56: public Object getContent(URLConnection urlc) throws IOException 57: { 58: // FIXME: implement using ImageIO 59: // ClasspathToolkit tk = (ClasspathToolkit) Toolkit.getDefaultToolkit(); 60: // java.awt.image.ImageProducer ip = tk.createImageProducer(urlc.getURL()); 61: // return ip; 62: return null; 63: } 64: } 65: 66: /** 67: */ 68: public class DefaultContentHandlerFactory implements ContentHandlerFactory 69: { 70: /** For now, hard code the list of types that we assume should 71: * be supported by the Toolkit. ClasspathToolkit should perhaps provide 72: * an API to express what Image MIME types the Toolkit understands. 73: */ 74: private static String[] known_image_types = 75: { 76: "image/bmp", 77: "image/gif", 78: "image/jpeg", 79: "image/png", 80: "image/tiff", 81: "image/x-portable-anymap", 82: "image/x-cmu-raster", 83: "image/x-xbitmap", 84: "image/x-xpixmap" 85: }; 86: 87: private static HashSet imageTypes 88: = new HashSet(Arrays.asList(known_image_types)); 89: 90: public ContentHandler createContentHandler(String mimeType) 91: { 92: if (imageTypes.contains(mimeType)) 93: return ImageHandler.instance; 94: // Currently, only image types are handled. 95: return null; 96: } 97: }