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126 lines
2.9 KiB
126 lines
2.9 KiB
/*
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* Copyright (c) 2007, 2009, Oracle and/or its affiliates. All rights reserved.
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* ORACLE PROPRIETARY/CONFIDENTIAL. Use is subject to license terms.
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*
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*
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*
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*
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*
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*
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*
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*
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*
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*
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*
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*
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*
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*
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*
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*
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*
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*
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*
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*
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*/
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package java.nio.file;
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import java.io.IOException;
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/**
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* Thrown when a file system operation fails on one or two files. This class is
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* the general class for file system exceptions.
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*
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* @since 1.7
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*/
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public class FileSystemException
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extends IOException
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{
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static final long serialVersionUID = -3055425747967319812L;
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private final String file;
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private final String other;
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/**
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* Constructs an instance of this class. This constructor should be used
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* when an operation involving one file fails and there isn't any additional
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* information to explain the reason.
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*
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* @param file
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* a string identifying the file or {@code null} if not known.
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*/
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public FileSystemException(String file) {
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super((String)null);
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this.file = file;
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this.other = null;
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}
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/**
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* Constructs an instance of this class. This constructor should be used
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* when an operation involving two files fails, or there is additional
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* information to explain the reason.
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*
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* @param file
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* a string identifying the file or {@code null} if not known.
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* @param other
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* a string identifying the other file or {@code null} if there
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* isn't another file or if not known
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* @param reason
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* a reason message with additional information or {@code null}
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*/
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public FileSystemException(String file, String other, String reason) {
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super(reason);
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this.file = file;
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this.other = other;
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}
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/**
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* Returns the file used to create this exception.
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*
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* @return the file (can be {@code null})
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*/
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public String getFile() {
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return file;
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}
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/**
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* Returns the other file used to create this exception.
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*
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* @return the other file (can be {@code null})
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*/
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public String getOtherFile() {
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return other;
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}
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/**
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* Returns the string explaining why the file system operation failed.
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*
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* @return the string explaining why the file system operation failed
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*/
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public String getReason() {
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return super.getMessage();
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}
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/**
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* Returns the detail message string.
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*/
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@Override
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public String getMessage() {
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if (file == null && other == null)
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return getReason();
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StringBuilder sb = new StringBuilder();
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if (file != null)
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sb.append(file);
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if (other != null) {
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sb.append(" -> ");
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sb.append(other);
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}
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if (getReason() != null) {
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sb.append(": ");
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sb.append(getReason());
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}
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return sb.toString();
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}
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}
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