JarImageSource.java revision 0
0N/A/*
2362N/A * Copyright 1996-1998 Sun Microsystems, Inc. All Rights Reserved.
0N/A * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
0N/A *
0N/A * This code is free software; you can redistribute it and/or modify it
0N/A * under the terms of the GNU General Public License version 2 only, as
0N/A * published by the Free Software Foundation. Sun designates this
0N/A * particular file as subject to the "Classpath" exception as provided
0N/A * by Sun in the LICENSE file that accompanied this code.
0N/A *
0N/A * This code is distributed in the hope that it will be useful, but WITHOUT
0N/A * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
0N/A * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
0N/A * version 2 for more details (a copy is included in the LICENSE file that
0N/A * accompanied this code).
0N/A *
0N/A * You should have received a copy of the GNU General Public License version
0N/A * 2 along with this work; if not, write to the Free Software Foundation,
2362N/A * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
2362N/A *
2362N/A * Please contact Sun Microsystems, Inc., 4150 Network Circle, Santa Clara,
0N/A * CA 95054 USA or visit www.sun.com if you need additional information or
0N/A * have any questions.
0N/A */
0N/A
0N/A
0N/Apackage sun.tools.jar;
0N/A
0N/Aimport sun.awt.image.URLImageSource;
0N/Aimport sun.awt.image.ImageDecoder;
0N/Aimport java.net.URL;
0N/Aimport java.net.JarURLConnection;
0N/Aimport java.util.jar.JarFile;
0N/Aimport java.util.jar.JarEntry;
0N/Aimport java.io.InputStream;
0N/Aimport java.io.IOException;
0N/A
0N/A
0N/Apublic class JarImageSource extends URLImageSource {
0N/A String mimeType;
0N/A String entryName = null;
827N/A URL url;
0N/A
0N/A /**
0N/A * Create an image source from a Jar entry URL with the specified
0N/A * mime type.
0N/A */
0N/A public JarImageSource(URL u, String type) {
0N/A super(u);
0N/A url = u;
0N/A mimeType = type;
0N/A }
0N/A
0N/A /**
0N/A * Create an image source from a Jar file/entry URL
0N/A * with the specified entry name and mime type.
0N/A */
0N/A public JarImageSource(URL u, String name, String type) {
0N/A this(u, type);
0N/A this.entryName = name;
0N/A }
0N/A
0N/A protected ImageDecoder getDecoder() {
0N/A InputStream is = null;
0N/A try {
0N/A JarURLConnection c = (JarURLConnection)url.openConnection();
0N/A JarFile f = c.getJarFile();
0N/A JarEntry e = c.getJarEntry();
0N/A
0N/A if (entryName != null && e == null) {
0N/A e = f.getJarEntry(entryName);
0N/A }
0N/A if (e == null || (e != null && entryName != null
0N/A && (!(entryName.equals(e.getName()))))) {
0N/A return null;
0N/A }
0N/A is = f.getInputStream(e);
0N/A } catch (IOException e) {
0N/A return null;
0N/A }
0N/A
ImageDecoder id = decoderForType(is, mimeType);
if (id == null) {
id = getDecoder(is);
}
return id;
}
}