/*
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 * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
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 * particular file as subject to the "Classpath" exception as provided
 * by Oracle in the LICENSE file that accompanied this code.
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 * This code is distributed in the hope that it will be useful, but WITHOUT
 * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
 * FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License
 * version 2 for more details (a copy is included in the LICENSE file that
 * accompanied this code).
 *
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package sun.nio.fs;

import java.nio.file.*;
import java.io.IOException;

import static sun.nio.fs.WindowsConstants.*;

Internal exception thrown when a Win32 calls fails.
/** * Internal exception thrown when a Win32 calls fails. */
class WindowsException extends Exception { static final long serialVersionUID = 2765039493083748820L; private int lastError; private String msg; WindowsException(int lastError) { this.lastError = lastError; this.msg = null; } WindowsException(String msg) { this.lastError = 0; this.msg = msg; } int lastError() { return lastError; } String errorString() { if (msg == null) { msg = WindowsNativeDispatcher.FormatMessage(lastError); if (msg == null) { msg = "Unknown error: 0x" + Integer.toHexString(lastError); } } return msg; } @Override public String getMessage() { return errorString(); } @Override public Throwable fillInStackTrace() { // This is an internal exception; the stack trace is irrelevant. return this; } private IOException translateToIOException(String file, String other) { // not created with last error if (lastError() == 0) return new IOException(errorString()); // handle specific cases if (lastError() == ERROR_FILE_NOT_FOUND || lastError() == ERROR_PATH_NOT_FOUND) return new NoSuchFileException(file, other, null); if (lastError() == ERROR_FILE_EXISTS || lastError() == ERROR_ALREADY_EXISTS) return new FileAlreadyExistsException(file, other, null); if (lastError() == ERROR_ACCESS_DENIED) return new AccessDeniedException(file, other, null); // fallback to the more general exception return new FileSystemException(file, other, errorString()); } void rethrowAsIOException(String file) throws IOException { IOException x = translateToIOException(file, null); throw x; } void rethrowAsIOException(WindowsPath file, WindowsPath other) throws IOException { String a = (file == null) ? null : file.getPathForExceptionMessage(); String b = (other == null) ? null : other.getPathForExceptionMessage(); IOException x = translateToIOException(a, b); throw x; } void rethrowAsIOException(WindowsPath file) throws IOException { rethrowAsIOException(file, null); } IOException asIOException(WindowsPath file) { return translateToIOException(file.getPathForExceptionMessage(), null); } }