Classes in this File | Line Coverage | Branch Coverage | Complexity | ||||
RawLDBackendState |
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| 2.142857142857143;2.143 |
1 | /** | |
2 | * Distribution License: | |
3 | * JSword is free software; you can redistribute it and/or modify it under | |
4 | * the terms of the GNU Lesser General Public License, version 2.1 or later | |
5 | * as published by the Free Software Foundation. This program is distributed | |
6 | * in the hope that it will be useful, but WITHOUT ANY WARRANTY; without even | |
7 | * the implied warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. | |
8 | * See the GNU Lesser General Public License for more details. | |
9 | * | |
10 | * The License is available on the internet at: | |
11 | * http://www.gnu.org/copyleft/lgpl.html | |
12 | * or by writing to: | |
13 | * Free Software Foundation, Inc. | |
14 | * 59 Temple Place - Suite 330 | |
15 | * Boston, MA 02111-1307, USA | |
16 | * | |
17 | * © CrossWire Bible Society, 2013 - 2016 | |
18 | * | |
19 | */ | |
20 | package org.crosswire.jsword.book.sword.state; | |
21 | ||
22 | import java.io.File; | |
23 | import java.io.IOException; | |
24 | import java.io.RandomAccessFile; | |
25 | import java.net.URI; | |
26 | ||
27 | import org.crosswire.common.util.FileUtil; | |
28 | import org.crosswire.common.util.IOUtil; | |
29 | import org.crosswire.common.util.Reporter; | |
30 | import org.crosswire.jsword.JSMsg; | |
31 | import org.crosswire.jsword.book.BookException; | |
32 | import org.crosswire.jsword.book.BookMetaData; | |
33 | import org.crosswire.jsword.book.sword.RawLDBackend; | |
34 | import org.crosswire.jsword.book.sword.SwordConstants; | |
35 | import org.crosswire.jsword.book.sword.SwordUtil; | |
36 | import org.slf4j.Logger; | |
37 | import org.slf4j.LoggerFactory; | |
38 | ||
39 | /** | |
40 | * State for {@link RawLDBackend} | |
41 | * | |
42 | * | |
43 | * @see gnu.lgpl.License The GNU Lesser General Public License for details. | |
44 | * @author DM Smith | |
45 | */ | |
46 | public class RawLDBackendState extends AbstractOpenFileState { | |
47 | /** | |
48 | * This is default package access for forcing the use of the | |
49 | * OpenFileStateManager to manage the creation. Not doing so may result in | |
50 | * new instances of OpenFileState being created for no reason, and as a | |
51 | * result, if they are released to the OpenFileStateManager by mistake this | |
52 | * would result in leakage | |
53 | * | |
54 | * @param bookMetaData the appropriate metadata for the book | |
55 | */ | |
56 | RawLDBackendState(BookMetaData bookMetaData) throws BookException { | |
57 | 0 | super(bookMetaData); |
58 | 0 | URI path = null; |
59 | try { | |
60 | 0 | path = SwordUtil.getExpandedDataPath(bookMetaData); |
61 | 0 | } catch (BookException e) { |
62 | 0 | Reporter.informUser(this, e); |
63 | 0 | throw e; |
64 | 0 | } |
65 | ||
66 | try { | |
67 | 0 | idxFile = new File(path.getPath() + SwordConstants.EXTENSION_INDEX); |
68 | 0 | datFile = new File(path.getPath() + SwordConstants.EXTENSION_DATA); |
69 | ||
70 | 0 | if (!idxFile.canRead()) { |
71 | // TRANSLATOR: Common error condition: The file could not be | |
72 | // read. There can be many reasons. | |
73 | // {0} is a placeholder for the file. | |
74 | 0 | Reporter.informUser(this, new BookException(JSMsg.gettext("Error reading {0}", idxFile.getAbsolutePath()))); |
75 | ||
76 | // As per previous behaviour, we continue with state half made, having informed the user of the error | |
77 | 0 | return; |
78 | } | |
79 | ||
80 | 0 | if (!datFile.canRead()) { |
81 | // Throwing exception, as if we can't read our data file, then we might as well give up | |
82 | ||
83 | // TRANSLATOR: Common error condition: The file could not be | |
84 | // read. There can be many reasons. | |
85 | // {0} is a placeholder for the file. | |
86 | 0 | BookException prob = new BookException(JSMsg.gettext("Error reading {0}", datFile.getAbsolutePath())); |
87 | 0 | Reporter.informUser(this, prob); |
88 | 0 | throw prob; |
89 | } | |
90 | ||
91 | // Open the files | |
92 | 0 | idxRaf = new RandomAccessFile(idxFile, FileUtil.MODE_READ); |
93 | 0 | datRaf = new RandomAccessFile(datFile, FileUtil.MODE_READ); |
94 | 0 | } catch (IOException ex) { |
95 | //failed to open the files, so close them now | |
96 | 0 | IOUtil.close(idxRaf); |
97 | 0 | IOUtil.close(datRaf); |
98 | ||
99 | 0 | LOGGER.error("failed to open files", ex); |
100 | 0 | idxRaf = null; |
101 | 0 | datRaf = null; |
102 | // TRANSLATOR: Common error condition: The file could not be read. | |
103 | // There can be many reasons. | |
104 | // {0} is a placeholder for the file. | |
105 | 0 | throw new BookException(JSMsg.gettext("Error reading {0}", datFile.getAbsolutePath()), ex); |
106 | 0 | } |
107 | 0 | } |
108 | ||
109 | public void releaseResources() { | |
110 | 0 | size = -1; |
111 | 0 | IOUtil.close(idxRaf); |
112 | 0 | IOUtil.close(datRaf); |
113 | 0 | idxRaf = null; |
114 | 0 | datRaf = null; |
115 | 0 | } |
116 | ||
117 | /** | |
118 | * @return the size | |
119 | */ | |
120 | public int getSize() { | |
121 | 0 | return size; |
122 | } | |
123 | ||
124 | /** | |
125 | * @return the idxFile | |
126 | */ | |
127 | public File getIdxFile() { | |
128 | 0 | return idxFile; |
129 | } | |
130 | ||
131 | /** | |
132 | * @return the idxRaf | |
133 | */ | |
134 | public RandomAccessFile getIdxRaf() { | |
135 | 0 | return idxRaf; |
136 | } | |
137 | ||
138 | /** | |
139 | * @return the datRaf | |
140 | */ | |
141 | public RandomAccessFile getDatRaf() { | |
142 | 0 | return datRaf; |
143 | } | |
144 | ||
145 | /** | |
146 | * @param size | |
147 | * the size to set | |
148 | */ | |
149 | public void setSize(int size) { | |
150 | 0 | this.size = size; |
151 | 0 | } |
152 | ||
153 | /** | |
154 | * The number of entries in the book. | |
155 | */ | |
156 | 0 | private int size = -1; |
157 | ||
158 | /** | |
159 | * The index file | |
160 | */ | |
161 | private File idxFile; | |
162 | ||
163 | /** | |
164 | * The index random access file | |
165 | */ | |
166 | private RandomAccessFile idxRaf; | |
167 | ||
168 | /** | |
169 | * The data file | |
170 | */ | |
171 | private File datFile; | |
172 | ||
173 | /** | |
174 | * The data random access file | |
175 | */ | |
176 | private RandomAccessFile datRaf; | |
177 | ||
178 | /** | |
179 | * The log stream | |
180 | */ | |
181 | 0 | private static final Logger LOGGER = LoggerFactory.getLogger(RawLDBackend.class); |
182 | } |