1 /* 2 * Copyright (c) 2007, 2011, Oracle and/or its affiliates. All rights reserved. 3 * 4 * Redistribution and use in source and binary forms, with or without 5 * modification, are permitted provided that the following conditions 6 * are met: 7 * 8 * - Redistributions of source code must retain the above copyright 9 * notice, this list of conditions and the following disclaimer. 10 * 11 * - Redistributions in binary form must reproduce the above copyright 12 * notice, this list of conditions and the following disclaimer in the 13 * documentation and/or other materials provided with the distribution. 14 * 15 * - Neither the name of Oracle nor the names of its 16 * contributors may be used to endorse or promote products derived 17 * from this software without specific prior written permission. 18 * 19 * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS 20 * IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, 21 * THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR 22 * PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR 23 * CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, 24 * EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, 25 * PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR 26 * PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF 27 * LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING 28 * NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS 29 * SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. 30 */ 31 32 /* 33 * This source code is provided to illustrate the usage of a given feature 34 * or technique and has been deliberately simplified. Additional steps 35 * required for a production-quality application, such as security checks, 36 * input validation and proper error handling, might not be present in 37 * this sample code. 38 */ 39 40 package com.sun.nio.zipfs; 41 42 import java.nio.file.*; 43 import java.nio.file.spi.*; 44 import java.nio.file.attribute.*; 45 import java.nio.file.spi.FileSystemProvider; 46 47 import java.net.URI; 48 import java.io.IOException; 49 import java.net.URISyntaxException; 50 import java.nio.channels.FileChannel; 51 import java.util.HashMap; 52 import java.util.Map; 53 import java.util.Set; 54 55 public class JarFileSystemProvider extends ZipFileSystemProvider 56 { 57 58 @Override 59 public String getScheme() { 60 return "jar"; 61 } 62 63 @Override 64 protected Path uriToPath(URI uri) { 65 String scheme = uri.getScheme(); 66 if ((scheme == null) || !scheme.equalsIgnoreCase(getScheme())) { 67 throw new IllegalArgumentException("URI scheme is not '" + getScheme() + "'"); 68 } 69 try { 70 String uristr = uri.toString(); 71 int end = uristr.indexOf("!/"); 72 uristr = uristr.substring(4, (end == -1) ? uristr.length() : end); 73 uri = new URI(uristr); 74 return Paths.get(new URI("file", uri.getHost(), uri.getPath(), null)) 75 .toAbsolutePath(); 76 } catch (URISyntaxException e) { 77 throw new AssertionError(e); //never thrown 78 } 79 } 80 81 @Override 82 public Path getPath(URI uri) { 83 FileSystem fs = getFileSystem(uri); 84 String path = uri.getFragment(); 85 if (path == null) { 86 String uristr = uri.toString(); 87 int off = uristr.indexOf("!/"); 88 if (off != -1) 89 path = uristr.substring(off + 2); 90 } 91 if (path != null) 92 return fs.getPath(path); 93 throw new IllegalArgumentException("URI: " 94 + uri 95 + " does not contain path fragment ex. jar:///c:/foo.zip!/BAR"); 96 } 97 }