Showing the changes to java/pkg/java/nio/file/FileSystemException.java (1 of 18352 files). Show all
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| 1 | +/* | |
| 2 | + * Copyright (c) 2007, 2009, 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. Oracle designates this | |
| 8 | + * particular file as subject to the "Classpath" exception as provided | |
| 9 | + * by Oracle in the LICENSE file that accompanied this code. | |
| 10 | + * | |
| 11 | + * This code is distributed in the hope that it will be useful, but WITHOUT | |
| 12 | + * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or | |
| 13 | + * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License | |
| 14 | + * version 2 for more details (a copy is included in the LICENSE file that | |
| 15 | + * accompanied this code). | |
| 16 | + * | |
| 17 | + * You should have received a copy of the GNU General Public License version | |
| 18 | + * 2 along with this work; if not, write to the Free Software Foundation, | |
| 19 | + * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA. | |
| 20 | + * | |
| 21 | + * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA | |
| 22 | + * or visit www.oracle.com if you need additional information or have any | |
| 23 | + * questions. | |
| 24 | + */ | |
| 25 | + | |
| 26 | +package java.nio.file; | |
| 27 | + | |
| 28 | +import java.io.IOException; | |
| 29 | + | |
| 30 | +/** | |
| 31 | + * Thrown when a file system operation fails on one or two files. This class is | |
| 32 | + * the general class for file system exceptions. | |
| 33 | + * | |
| 34 | + * @since 1.7 | |
| 35 | + */ | |
| 36 | + | |
| 37 | +public class FileSystemException | |
| 38 | + extends IOException | |
| 39 | +{ | |
| 40 | + static final long serialVersionUID = -3055425747967319812L; | |
| 41 | + | |
| 42 | + private final String file; | |
| 43 | + private final String other; | |
| 44 | + | |
| 45 | + /** | |
| 46 | + * Constructs an instance of this class. This constructor should be used | |
| 47 | + * when an operation involving one file fails and there isn't any additional | |
| 48 | + * information to explain the reason. | |
| 49 | + * | |
| 50 | + * @param file | |
| 51 | + * a string identifying the file or {@code null} if not known. | |
| 52 | + */ | |
| 53 | + public FileSystemException(String file) { | |
| 54 | + super((String)null); | |
| 55 | + this.file = file; | |
| 56 | + this.other = null; | |
| 57 | + } | |
| 58 | + | |
| 59 | + /** | |
| 60 | + * Constructs an instance of this class. This constructor should be used | |
| 61 | + * when an operation involving two files fails, or there is additional | |
| 62 | + * information to explain the reason. | |
| 63 | + * | |
| 64 | + * @param file | |
| 65 | + * a string identifying the file or {@code null} if not known. | |
| 66 | + * @param other | |
| 67 | + * a string identifying the other file or {@code null} if there | |
| 68 | + * isn't another file or if not known | |
| 69 | + * @param reason | |
| 70 | + * a reason message with additional information or {@code null} | |
| 71 | + */ | |
| 72 | + public FileSystemException(String file, String other, String reason) { | |
| 73 | + super(reason); | |
| 74 | + this.file = file; | |
| 75 | + this.other = other; | |
| 76 | + } | |
| 77 | + | |
| 78 | + /** | |
| 79 | + * Returns the file used to create this exception. | |
| 80 | + * | |
| 81 | + * @return the file (can be {@code null}) | |
| 82 | + */ | |
| 83 | + public String getFile() { | |
| 84 | + return file; | |
| 85 | + } | |
| 86 | + | |
| 87 | + /** | |
| 88 | + * Returns the other file used to create this exception. | |
| 89 | + * | |
| 90 | + * @return the other file (can be {@code null}) | |
| 91 | + */ | |
| 92 | + public String getOtherFile() { | |
| 93 | + return other; | |
| 94 | + } | |
| 95 | + | |
| 96 | + /** | |
| 97 | + * Returns the string explaining why the file system operation failed. | |
| 98 | + * | |
| 99 | + * @return the string explaining why the file system operation failed | |
| 100 | + */ | |
| 101 | + public String getReason() { | |
| 102 | + return super.getMessage(); | |
| 103 | + } | |
| 104 | + | |
| 105 | + /** | |
| 106 | + * Returns the detail message string. | |
| 107 | + */ | |
| 108 | + @Override | |
| 109 | + public String getMessage() { | |
| 110 | + if (file == null && other == null) | |
| 111 | + return getReason(); | |
| 112 | + StringBuilder sb = new StringBuilder(); | |
| 113 | + if (file != null) | |
| 114 | + sb.append(file); | |
| 115 | + if (other != null) { | |
| 116 | + sb.append(" -> "); | |
| 117 | + sb.append(other); | |
| 118 | + } | |
| 119 | + if (getReason() != null) { | |
| 120 | + sb.append(": "); | |
| 121 | + sb.append(getReason()); | |
| 122 | + } | |
| 123 | + return sb.toString(); | |
| 124 | + } | |
| 125 | +} | |