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annotate src/org/tmatesoft/hg/core/HgInvalidFileException.java @ 338:3cfa4d908fc9

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Add options to control DataAccessProvider, allow to turn off use of file memory mapping in particular to solve potential sharing violation (os file handle gets released on MappedByteByffer being GC'd, not on FileChannel.close())
author Artem Tikhomirov <tikhomirov.artem@gmail.com>
date Tue, 15 Nov 2011 04:47:03 +0100
parents 981f9f50bb6c
children 856517285256
rev   line source
295
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1 /*
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2 * Copyright (c) 2011 TMate Software Ltd
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3 *
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4 * This program is free software; you can redistribute it and/or modify
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5 * it under the terms of the GNU General Public License as published by
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6 * the Free Software Foundation; version 2 of the License.
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7 *
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8 * This program is distributed in the hope that it will be useful,
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9 * but WITHOUT ANY WARRANTY; without even the implied warranty of
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10 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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11 * GNU General Public License for more details.
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12 *
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13 * For information on how to redistribute this software under
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14 * the terms of a license other than GNU General Public License
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15 * contact TMate Software at support@hg4j.com
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16 */
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17 package org.tmatesoft.hg.core;
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18
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19 import java.io.File;
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20 import java.io.IOException;
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21
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22 /**
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23 * Thrown when there are troubles working with local file. Most likely (but not necessarily) wraps IOException. Might be
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24 * perceived as specialized IOException with optional File and other repository information.
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25 *
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26 * <b>Hg4J</b> tries to minimize chances for IOException to occur (i.e. {@link File#canRead()} is checked before attempt to
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27 * read a file that might not exist, and doesn't use this exception to wrap each and any {@link IOException} source (e.g.
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28 * <code>#close()</code> calls are unlikely to yield it), hence it is likely to address real cases when I/O error occurs.
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29 *
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30 * On the other hand, when a file is supposed to exist and be readable, this exception might get thrown as well to indicate
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31 * that's not true.
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32 *
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33 * @author Artem Tikhomirov
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34 * @author TMate Software Ltd.
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35 */
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36 @SuppressWarnings("serial")
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37 public class HgInvalidFileException extends HgException {
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38
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39 private File localFile;
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40
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41 public HgInvalidFileException(String message, Throwable th) {
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42 super(message, th);
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43 }
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44
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45 public HgInvalidFileException(String message, Throwable th, File file) {
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46 super(message, th);
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47 localFile = file;
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48 }
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49
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50 public HgInvalidFileException setFile(File file) {
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51 assert file != null;
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52 localFile = file;
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53 return this;
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54 }
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55
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56 /**
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57 * @return file object that causes troubles, or <code>null</code> if specific file is unknown
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58 */
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59 public File getFile() {
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60 return localFile;
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61 }
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62 }