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[nikiroo-utils.git] / src / be / nikiroo / fanfix / reader / BasicReader.java
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1package be.nikiroo.fanfix.reader;
2
3b2b638f 3import java.io.File;
89cb07a6 4import java.io.IOException;
3b2b638f 5import java.net.MalformedURLException;
89cb07a6 6import java.net.URL;
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7import java.text.ParseException;
8import java.text.SimpleDateFormat;
df6e2d88 9import java.util.Date;
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10import java.util.Map;
11import java.util.TreeMap;
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12
13import be.nikiroo.fanfix.Instance;
d0114000 14import be.nikiroo.fanfix.bundles.Config;
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15import be.nikiroo.fanfix.bundles.UiConfig;
16import be.nikiroo.fanfix.data.MetaData;
89cb07a6 17import be.nikiroo.fanfix.data.Story;
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18import be.nikiroo.fanfix.library.BasicLibrary;
19import be.nikiroo.fanfix.library.LocalLibrary;
89cb07a6 20import be.nikiroo.fanfix.supported.BasicSupport;
3b2b638f 21import be.nikiroo.utils.Progress;
df6e2d88 22import be.nikiroo.utils.StringUtils;
9119671d 23import be.nikiroo.utils.serial.SerialUtils;
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24
25/**
dd56a893 26 * The class that handles the different {@link Story} readers you can use.
89cb07a6 27 * <p>
dd56a893 28 * All the readers should be accessed via {@link BasicReader#getReader()}.
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29 *
30 * @author niki
31 */
e42573a0 32public abstract class BasicReader implements Reader {
68e2c6d2 33 private static BasicLibrary defaultLibrary = Instance.getLibrary();
c1873e56 34 private static ReaderType defaultType = ReaderType.GUI;
b0e88ebd 35
68e2c6d2 36 private BasicLibrary lib;
bc2ea776 37 private MetaData meta;
89cb07a6 38 private Story story;
bc2ea776 39 private int chapter;
3727aae2 40
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41 /**
42 * Take the default reader type configuration from the config file.
43 */
3727aae2 44 static {
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45 String typeString = Instance.getConfig().getString(Config.READER_TYPE);
46 if (typeString != null && !typeString.isEmpty()) {
47 try {
48 ReaderType type = ReaderType.valueOf(typeString.toUpperCase());
49 defaultType = type;
50 } catch (IllegalArgumentException e) {
51 // Do nothing
52 }
53 }
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54 }
55
211f7ddb 56 @Override
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57 public synchronized Story getStory(Progress pg) {
58 if (story == null) {
59 story = getLibrary().getStory(meta.getLuid(), pg);
60 }
61
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62 return story;
63 }
64
211f7ddb 65 @Override
68e2c6d2 66 public BasicLibrary getLibrary() {
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67 if (lib == null) {
68 lib = defaultLibrary;
69 }
70
71 return lib;
72 }
73
211f7ddb 74 @Override
bc2ea776 75 public void setLibrary(BasicLibrary lib) {
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76 this.lib = lib;
77 }
78
211f7ddb 79 @Override
9fe3f177 80 public synchronized MetaData getMeta() {
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81 return meta;
82 }
83
211f7ddb 84 @Override
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85 public synchronized void setMeta(MetaData meta) throws IOException {
86 setMeta(meta == null ? null : meta.getLuid()); // must check the library
87 }
88
211f7ddb 89 @Override
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90 public synchronized void setMeta(String luid) throws IOException {
91 story = null;
92 meta = getLibrary().getInfo(luid);
93
94 if (meta == null) {
92fb0719 95 throw new IOException("Cannot retrieve story from library: " + luid);
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96 }
97 }
98
211f7ddb 99 @Override
350bc060 100 public synchronized void setMeta(URL url, Progress pg) throws IOException {
e0fb1417 101 BasicSupport support = BasicSupport.getSupport(url);
89cb07a6 102 if (support == null) {
e0fb1417 103 throw new IOException("URL not supported: " + url.toString());
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104 }
105
0ffa4754 106 story = support.process(pg);
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107 if (story == null) {
108 throw new IOException(
109 "Cannot retrieve story from external source: "
e0fb1417 110 + url.toString());
89cb07a6 111 }
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112
113 meta = story.getMeta();
114 }
115
211f7ddb 116 @Override
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117 public int getChapter() {
118 return chapter;
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119 }
120
211f7ddb 121 @Override
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122 public void setChapter(int chapter) {
123 this.chapter = chapter;
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124 }
125
3727aae2 126 /**
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127 * Return a new {@link BasicReader} ready for use if one is configured.
128 * <p>
129 * Can return NULL if none are configured.
3727aae2 130 *
d0114000 131 * @return a {@link BasicReader}, or NULL if none configured
3727aae2 132 */
e42573a0 133 public static Reader getReader() {
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134 try {
135 if (defaultType != null) {
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136 return (Reader) SerialUtils.createObject(defaultType
137 .getTypeName());
d0114000 138 }
9119671d 139 } catch (Exception e) {
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140 Instance.getTraceHandler().error(
141 new Exception("Cannot create a reader of type: "
142 + defaultType + " (Not compiled in?)", e));
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143 }
144
145 return null;
146 }
147
148 /**
bc2ea776 149 * The default {@link Reader.ReaderType} used when calling
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150 * {@link BasicReader#getReader()}.
151 *
152 * @return the default type
153 */
154 public static ReaderType getDefaultReaderType() {
155 return defaultType;
156 }
157
158 /**
bc2ea776 159 * The default {@link Reader.ReaderType} used when calling
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160 * {@link BasicReader#getReader()}.
161 *
162 * @param defaultType
163 * the new default type
164 */
165 public static void setDefaultReaderType(ReaderType defaultType) {
166 BasicReader.defaultType = defaultType;
167 }
3b2b638f 168
b0e88ebd 169 /**
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170 * Change the default {@link LocalLibrary} to open with the
171 * {@link BasicReader}s.
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172 *
173 * @param lib
68e2c6d2 174 * the new {@link LocalLibrary}
b0e88ebd 175 */
68e2c6d2 176 public static void setDefaultLibrary(BasicLibrary lib) {
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177 BasicReader.defaultLibrary = lib;
178 }
179
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180 /**
181 * Return an {@link URL} from this {@link String}, be it a file path or an
182 * actual {@link URL}.
183 *
184 * @param sourceString
185 * the source
186 *
187 * @return the corresponding {@link URL}
188 *
189 * @throws MalformedURLException
190 * if this is neither a file nor a conventional {@link URL}
191 */
192 public static URL getUrl(String sourceString) throws MalformedURLException {
193 if (sourceString == null || sourceString.isEmpty()) {
194 throw new MalformedURLException("Empty url");
195 }
196
197 URL source = null;
198 try {
199 source = new URL(sourceString);
200 } catch (MalformedURLException e) {
201 File sourceFile = new File(sourceString);
202 source = sourceFile.toURI().toURL();
203 }
204
205 return source;
206 }
c1873e56 207
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208 /**
209 * Describe a {@link Story} from its {@link MetaData} and return a list of
210 * title/value that represent this {@link Story}.
211 *
212 * @param meta
213 * the {@link MetaData} to represent
214 *
215 * @return the information
216 */
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217 public static Map<String, String> getMetaDesc(MetaData meta) {
218 Map<String, String> metaDesc = new TreeMap<String, String>();
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219
220 // TODO: i18n
221
222 StringBuilder tags = new StringBuilder();
223 for (String tag : meta.getTags()) {
224 if (tags.length() > 0) {
225 tags.append(", ");
226 }
227 tags.append(tag);
228 }
229
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230 metaDesc.put("Author", meta.getAuthor());
231 metaDesc.put("Publication date", formatDate(meta.getDate()));
232 metaDesc.put("Published on", meta.getPublisher());
233 metaDesc.put("URL", meta.getUrl());
a98e49ee 234 if (meta.isImageDocument()) {
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235 metaDesc.put("Number of images",
236 StringUtils.formatNumber(meta.getWords()));
a98e49ee 237 } else {
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238 metaDesc.put("Number of words",
239 StringUtils.formatNumber(meta.getWords()));
a98e49ee 240 }
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241 metaDesc.put("Source", meta.getSource());
242 metaDesc.put("Subject", meta.getSubject());
243 metaDesc.put("Language", meta.getLang());
244 metaDesc.put("Tags", tags.toString());
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245
246 return metaDesc;
247 }
248
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249 /**
250 * Open the {@link Story} with an external reader (the program will be
251 * passed the main file associated with this {@link Story}).
252 *
253 * @param lib
254 * the {@link BasicLibrary} to select the {@link Story} from
255 * @param luid
256 * the {@link Story} LUID
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257 * @param sync
258 * execute the process synchronously (wait until it is terminated
259 * before returning)
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260 *
261 * @throws IOException
262 * in case of I/O error
263 */
16a81ef7 264 @Override
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265 public void openExternal(BasicLibrary lib, String luid, boolean sync)
266 throws IOException {
b0e88ebd 267 MetaData meta = lib.getInfo(luid);
ff05b828 268 File target = lib.getFile(luid, null);
c1873e56 269
350bc060 270 openExternal(meta, target, sync);
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271 }
272
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273 /**
274 * Open the {@link Story} with an external reader (the program will be
275 * passed the given target file).
276 *
277 * @param meta
278 * the {@link Story} to load
279 * @param target
280 * the target {@link File}
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281 * @param sync
282 * execute the process synchronously (wait until it is terminated
283 * before returning)
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284 *
285 * @throws IOException
286 * in case of I/O error
287 */
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288 protected void openExternal(MetaData meta, File target, boolean sync)
289 throws IOException {
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290 String program = null;
291 if (meta.isImageDocument()) {
292 program = Instance.getUiConfig().getString(
293 UiConfig.IMAGES_DOCUMENT_READER);
294 } else {
295 program = Instance.getUiConfig().getString(
296 UiConfig.NON_IMAGES_DOCUMENT_READER);
297 }
298
299 if (program != null && program.trim().isEmpty()) {
300 program = null;
301 }
302
350bc060 303 start(target, program, sync);
16a81ef7 304 }
c1873e56 305
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306 /**
307 * Start a file and open it with the given program if given or the first
308 * default system starter we can find.
309 *
310 * @param target
311 * the target to open
312 * @param program
313 * the program to use or NULL for the default system starter
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314 * @param sync
315 * execute the process synchronously (wait until it is terminated
316 * before returning)
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317 *
318 * @throws IOException
319 * in case of I/O error
320 */
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321 protected void start(File target, String program, boolean sync)
322 throws IOException {
323
324 Process proc = null;
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325 if (program == null) {
326 boolean ok = false;
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327 for (String starter : new String[] { "xdg-open", "open", "see",
328 "start", "run" }) {
16a81ef7 329 try {
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330 Instance.getTraceHandler().trace(
331 "starting external program");
350bc060 332 proc = Runtime.getRuntime().exec(
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333 new String[] { starter, target.getAbsolutePath() });
334 ok = true;
335 break;
336 } catch (IOException e) {
337 }
338 }
339 if (!ok) {
340 throw new IOException("Cannot find a program to start the file");
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341 }
342 } else {
9e2fad36 343 Instance.getTraceHandler().trace("starting external program");
350bc060 344 proc = Runtime.getRuntime().exec(
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345 new String[] { program, target.getAbsolutePath() });
346 }
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347
348 if (proc != null && sync) {
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349 try {
350 proc.waitFor();
351 } catch (InterruptedException e) {
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352 }
353 }
c1873e56 354 }
df6e2d88 355
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356 static private String formatDate(String date) {
357 long ms = 0;
358
359 try {
360 ms = StringUtils.toTime(date);
361 } catch (ParseException e) {
362 }
363
364 if (ms <= 0) {
365 SimpleDateFormat sdf = new SimpleDateFormat(
a4a94451 366 "yyyy-MM-dd'T'HH:mm:ssSSS");
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367 try {
368 ms = sdf.parse(date).getTime();
369 } catch (ParseException e) {
370 }
371 }
372
373 if (ms > 0) {
374 SimpleDateFormat sdf = new SimpleDateFormat("yyyy-MM-dd");
375 return sdf.format(new Date(ms));
376 }
377
378 // :(
379 return date;
380 }
89cb07a6 381}