1 | |
|
2 | |
|
3 | |
|
4 | |
|
5 | |
|
6 | |
|
7 | |
|
8 | |
|
9 | |
|
10 | |
|
11 | |
|
12 | |
|
13 | |
|
14 | |
|
15 | |
|
16 | |
|
17 | |
|
18 | |
|
19 | |
|
20 | |
package org.crosswire.jsword.book.sword; |
21 | |
|
22 | |
import java.io.IOException; |
23 | |
import java.io.RandomAccessFile; |
24 | |
|
25 | |
import org.crosswire.jsword.JSMsg; |
26 | |
import org.crosswire.jsword.book.BookException; |
27 | |
import org.crosswire.jsword.book.BookMetaData; |
28 | |
import org.crosswire.jsword.book.sword.state.OpenFileStateManager; |
29 | |
import org.crosswire.jsword.book.sword.state.RawBackendState; |
30 | |
import org.crosswire.jsword.passage.BitwisePassage; |
31 | |
import org.crosswire.jsword.passage.Key; |
32 | |
import org.crosswire.jsword.passage.KeyUtil; |
33 | |
import org.crosswire.jsword.passage.RocketPassage; |
34 | |
import org.crosswire.jsword.passage.Verse; |
35 | |
import org.crosswire.jsword.versification.Testament; |
36 | |
import org.crosswire.jsword.versification.Versification; |
37 | |
import org.crosswire.jsword.versification.system.Versifications; |
38 | |
import org.slf4j.Logger; |
39 | |
import org.slf4j.LoggerFactory; |
40 | |
|
41 | |
|
42 | |
|
43 | |
|
44 | |
|
45 | |
|
46 | |
|
47 | |
|
48 | |
|
49 | 0 | public class RawBackend<T extends RawBackendState> extends AbstractBackend<RawBackendState> { |
50 | |
|
51 | |
|
52 | |
|
53 | |
|
54 | |
|
55 | |
|
56 | |
|
57 | |
public RawBackend(SwordBookMetaData sbmd, int datasize) { |
58 | 0 | super(sbmd); |
59 | 0 | this.datasize = datasize; |
60 | 0 | this.entrysize = OFFSETSIZE + datasize; |
61 | |
|
62 | 0 | assert datasize == 2 || datasize == 4; |
63 | 0 | } |
64 | |
|
65 | |
|
66 | |
|
67 | |
|
68 | |
@Override |
69 | |
public boolean contains(Key key) { |
70 | 0 | return getRawTextLength(key) > 0; |
71 | |
} |
72 | |
|
73 | |
|
74 | |
|
75 | |
|
76 | |
@Override |
77 | |
public int getRawTextLength(Key key) { |
78 | 0 | String v11nName = getBookMetaData().getProperty(BookMetaData.KEY_VERSIFICATION); |
79 | 0 | Versification v11n = Versifications.instance().getVersification(v11nName); |
80 | 0 | Verse verse = KeyUtil.getVerse(key); |
81 | |
|
82 | 0 | RawBackendState initState = null; |
83 | |
try { |
84 | 0 | int index = verse.getOrdinal(); |
85 | 0 | Testament testament = v11n.getTestament(index); |
86 | 0 | index = v11n.getTestamentOrdinal(index); |
87 | 0 | initState = initState(); |
88 | 0 | RandomAccessFile idxRaf = initState.getIdxRaf(testament); |
89 | |
|
90 | |
|
91 | 0 | if (idxRaf == null) { |
92 | 0 | return 0; |
93 | |
} |
94 | |
|
95 | 0 | DataIndex dataIndex = getIndex(idxRaf, index); |
96 | |
|
97 | 0 | return dataIndex.getSize(); |
98 | 0 | } catch (IOException ex) { |
99 | 0 | return 0; |
100 | 0 | } catch (BookException e) { |
101 | 0 | return 0; |
102 | |
} finally { |
103 | 0 | OpenFileStateManager.instance().release(initState); |
104 | |
} |
105 | |
} |
106 | |
|
107 | |
@Override |
108 | |
public Key getGlobalKeyList() throws BookException { |
109 | 0 | RawBackendState rafBook = null; |
110 | |
try { |
111 | 0 | rafBook = initState(); |
112 | |
|
113 | 0 | String v11nName = getBookMetaData().getProperty(BookMetaData.KEY_VERSIFICATION); |
114 | 0 | Versification v11n = Versifications.instance().getVersification(v11nName); |
115 | |
|
116 | 0 | Testament[] testaments = new Testament[] { |
117 | |
Testament.OLD, Testament.NEW |
118 | |
}; |
119 | |
|
120 | 0 | BitwisePassage passage = new RocketPassage(v11n); |
121 | 0 | passage.raiseEventSuppresion(); |
122 | 0 | passage.raiseNormalizeProtection(); |
123 | |
|
124 | 0 | for (Testament currentTestament : testaments) { |
125 | 0 | RandomAccessFile idxRaf = rafBook.getIdxRaf(currentTestament); |
126 | |
|
127 | |
|
128 | 0 | if (idxRaf == null) { |
129 | |
|
130 | 0 | continue; |
131 | |
} |
132 | |
|
133 | 0 | int maxIndex = v11n.getCount(currentTestament) - 1; |
134 | |
|
135 | |
|
136 | 0 | byte[] temp = SwordUtil.readRAF(idxRaf, 0, entrysize * maxIndex); |
137 | |
|
138 | |
|
139 | |
|
140 | 0 | if (datasize == 2) { |
141 | 0 | for (int ii = 0; ii < temp.length; ii += entrysize) { |
142 | |
|
143 | |
|
144 | |
|
145 | 0 | if (temp[ii + 4] != 0 || temp[ii + 5] != 0) { |
146 | 0 | int ordinal = ii / entrysize; |
147 | 0 | passage.addVersifiedOrdinal(v11n.getOrdinal(currentTestament, ordinal)); |
148 | |
} |
149 | |
} |
150 | |
} else { |
151 | 0 | for (int ii = 0; ii < temp.length; ii += entrysize) { |
152 | |
|
153 | |
|
154 | |
|
155 | 0 | if (temp[ii + 4] != 0 || temp[ii + 5] != 0 || temp[ii + 6] != 0 || temp[ii + 7] != 0) { |
156 | 0 | int ordinal = ii / entrysize; |
157 | 0 | passage.addVersifiedOrdinal(v11n.getOrdinal(currentTestament, ordinal)); |
158 | |
} |
159 | |
} |
160 | |
} |
161 | |
} |
162 | |
|
163 | 0 | passage.lowerNormalizeProtection(); |
164 | 0 | passage.lowerEventSuppressionAndTest(); |
165 | |
|
166 | 0 | return passage; |
167 | 0 | } catch (IOException e) { |
168 | 0 | throw new BookException(JSMsg.gettext("Unable to read key list from book.")); |
169 | |
} finally { |
170 | 0 | OpenFileStateManager.instance().release(rafBook); |
171 | |
} |
172 | |
} |
173 | |
|
174 | |
public T initState() throws BookException { |
175 | 0 | return (T) OpenFileStateManager.instance().getRawBackendState(getBookMetaData()); |
176 | |
} |
177 | |
|
178 | |
public String getRawText(RawBackendState state, Key key) throws IOException { |
179 | 0 | return readRawContent(state, key); |
180 | |
} |
181 | |
|
182 | |
|
183 | |
|
184 | |
|
185 | |
public String readRawContent(RawBackendState state, Key key) throws IOException { |
186 | 0 | String v11nName = getBookMetaData().getProperty(BookMetaData.KEY_VERSIFICATION); |
187 | 0 | Versification v11n = Versifications.instance().getVersification(v11nName); |
188 | 0 | Verse verse = KeyUtil.getVerse(key); |
189 | |
|
190 | 0 | int index = verse.getOrdinal(); |
191 | |
|
192 | 0 | Testament testament = v11n.getTestament(index); |
193 | 0 | index = v11n.getTestamentOrdinal(index); |
194 | 0 | RawBackendState initState = null; |
195 | |
try { |
196 | 0 | initState = initState(); |
197 | 0 | return getEntry(state, verse.getName(), testament, index); |
198 | 0 | } catch (BookException e) { |
199 | 0 | return ""; |
200 | |
} finally { |
201 | 0 | OpenFileStateManager.instance().release(initState); |
202 | |
} |
203 | |
} |
204 | |
|
205 | |
|
206 | |
|
207 | |
|
208 | |
public void setRawText(RawBackendState state, Key key, String text) throws BookException, IOException { |
209 | 0 | } |
210 | |
|
211 | |
|
212 | |
|
213 | |
|
214 | |
@Override |
215 | |
public boolean isWritable() { |
216 | 0 | RawBackendState rawBackendState = null; |
217 | |
try { |
218 | 0 | rawBackendState = initState(); |
219 | 0 | return rawBackendState.isWritable(); |
220 | 0 | } catch (BookException e) { |
221 | 0 | return false; |
222 | |
} finally { |
223 | 0 | OpenFileStateManager.instance().release(rawBackendState); |
224 | |
} |
225 | |
} |
226 | |
|
227 | |
|
228 | |
|
229 | |
|
230 | |
public void setAliasKey(RawBackendState state, Key alias, Key source) throws IOException { |
231 | 0 | throw new UnsupportedOperationException(); |
232 | |
} |
233 | |
|
234 | |
|
235 | |
|
236 | |
|
237 | |
|
238 | |
|
239 | |
|
240 | |
|
241 | |
protected DataIndex getIndex(RandomAccessFile raf, long entry) throws IOException { |
242 | |
|
243 | 0 | byte[] buffer = SwordUtil.readRAF(raf, entry * entrysize, entrysize); |
244 | 0 | if (buffer == null || buffer.length == 0) { |
245 | 0 | return new DataIndex(0, 0); |
246 | |
} |
247 | |
|
248 | 0 | int entryOffset = SwordUtil.decodeLittleEndian32(buffer, 0); |
249 | 0 | int entrySize = -1; |
250 | 0 | switch (datasize) { |
251 | |
case 2: |
252 | 0 | entrySize = SwordUtil.decodeLittleEndian16(buffer, 4); |
253 | 0 | break; |
254 | |
case 4: |
255 | 0 | entrySize = SwordUtil.decodeLittleEndian32(buffer, 4); |
256 | 0 | break; |
257 | |
default: |
258 | 0 | assert false : datasize; |
259 | |
} |
260 | 0 | return new DataIndex(entryOffset, entrySize); |
261 | |
} |
262 | |
|
263 | |
|
264 | |
|
265 | |
|
266 | |
|
267 | |
|
268 | |
|
269 | |
|
270 | |
|
271 | |
|
272 | |
|
273 | |
|
274 | |
|
275 | |
|
276 | |
|
277 | |
protected String getEntry(RawBackendState state, String name, Testament testament, long index) throws IOException { |
278 | |
final RandomAccessFile idxRaf; |
279 | |
final RandomAccessFile txtRaf; |
280 | 0 | idxRaf = state.getIdxRaf(testament); |
281 | 0 | txtRaf = state.getTextRaf(testament); |
282 | |
|
283 | |
|
284 | 0 | if (idxRaf == null) { |
285 | 0 | return ""; |
286 | |
} |
287 | |
|
288 | 0 | DataIndex dataIndex = getIndex(idxRaf, index); |
289 | |
|
290 | 0 | int size = dataIndex.getSize(); |
291 | 0 | if (size == 0) { |
292 | 0 | return ""; |
293 | |
} |
294 | |
|
295 | 0 | if (size < 0) { |
296 | 0 | log.error("In {}: Verse {} has a bad index size of {}", getBookMetaData().getInitials(), name, Integer.toString(size)); |
297 | 0 | return ""; |
298 | |
} |
299 | |
|
300 | 0 | byte[] data = SwordUtil.readRAF(txtRaf, dataIndex.getOffset(), size); |
301 | |
|
302 | 0 | decipher(data); |
303 | |
|
304 | 0 | return SwordUtil.decode(name, data, getBookMetaData().getBookCharset()); |
305 | |
} |
306 | |
|
307 | |
|
308 | |
|
309 | |
|
310 | |
protected final int datasize; |
311 | |
|
312 | |
|
313 | |
|
314 | |
|
315 | |
protected final int entrysize; |
316 | |
|
317 | |
|
318 | |
|
319 | |
|
320 | |
protected static final int OFFSETSIZE = 4; |
321 | |
|
322 | |
|
323 | |
|
324 | |
|
325 | 0 | private static final Logger log = LoggerFactory.getLogger(RawBackend.class); |
326 | |
|
327 | |
|
328 | |
} |