/*
* Copyright (c) 2008, 2009, Oracle and/or its affiliates. All rights reserved.
* DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
*
* This code is free software; you can redistribute it and/or modify it
* under the terms of the GNU General Public License version 2 only, as
* published by the Free Software Foundation. Oracle designates this
* particular file as subject to the "Classpath" exception as provided
* by Oracle in the LICENSE file that accompanied this code.
*
* 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).
*
* You should have received a copy of the GNU General Public License version
* 2 along with this work; if not, write to the Free Software Foundation,
* Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
*
* Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
* or visit www.oracle.com if you need additional information or have any
* questions.
*/
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.
*/
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();
}
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);
}
}