private Document buildDoc(EntityBaseBean bean) throws IcatException {
Map<Field, Integer> stringFields = ei.getStringFields(bean.getClass());
StringBuilder sb = new StringBuilder();
for (Entry<Field, Integer> item : stringFields.entrySet()) {
Field field = item.getKey();
Method getter = ei.getGetters(bean.getClass()).get(field);
try {
String text = (String) getter.invoke(bean);
if (text != null) {
if (sb.length() != 0) {
sb.append(' ');
}
sb.append(text);
}
} catch (IllegalArgumentException e) {
throw new IcatException(IcatExceptionType.INTERNAL, e.getMessage());
} catch (IllegalAccessException e) {
throw new IcatException(IcatExceptionType.INTERNAL, e.getMessage());
} catch (InvocationTargetException e) {
throw new IcatException(IcatExceptionType.INTERNAL, e.getMessage());
}
}
Document doc = new Document();
String id = bean.getClass().getSimpleName() + ":" + bean.getId();
doc.add(new StringField("id", id, Store.YES));
doc.add(new StringField("entity", bean.getClass().getSimpleName(), Store.NO));
doc.add(new TextField("all", sb.toString(), Store.NO));
logger.debug("Created document '" + sb.toString() + "' to index for " + id);
return doc;
}
@PostConstruct
private void init() {
luceneDirectory = propertyHandler.getLuceneDirectory();
active = luceneDirectory != null;
if (active) {
luceneRefreshSeconds = propertyHandler.getLuceneRefreshSeconds() * 1000L;
luceneCommitCount = propertyHandler.getLuceneCommitCount();
ei = EntityInfoHandler.getInstance();
try {
directory = FSDirectory.open(new File(luceneDirectory));
logger.debug("Opened FSDirectory with lockid " + directory.getLockID());
Analyzer analyzer = new IcatAnalyzer(Version.LUCENE_43);
IndexWriterConfig config = new IndexWriterConfig(Version.LUCENE_43, analyzer);
iwriter = new IndexWriter(directory, config);
String[] files = directory.listAll();
if (files.length == 1 && files[0].equals("write.lock")) {
logger.debug("Directory only has the write.lock file so commit and reopen");
iwriter.commit();
iwriter.close();
iwriter = new IndexWriter(directory, config);
}
searcherManager = new SearcherManager(directory, new SearcherFactory());
isearcher = searcherManager.acquire();
logger.debug("Got a new IndexSearcher " + isearcher);
parser = new StandardQueryParser();
StandardQueryConfigHandler qpConf =
(StandardQueryConfigHandler) parser.getQueryConfigHandler();
qpConf.set(ConfigurationKeys.ANALYZER, analyzer);
qpConf.set(ConfigurationKeys.ALLOW_LEADING_WILDCARD, true);
} catch (Exception e) {
StringWriter errors = new StringWriter();
e.printStackTrace(new PrintWriter(errors));
logger.fatal(errors.toString());
if (directory != null) {
try {
String lockId = directory.getLockID();
directory.clearLock(lockId);
logger.warn("Cleared lock " + lockId);
} catch (IOException e1) {
// Ignore
}
}
throw new IllegalStateException(errors.toString());
}
timer = new Timer("Lucene");
timer.schedule(
new TimerTask() {
@Override
public void run() {
try {
commit();
} catch (IcatException e) {
logger.error(e.getMessage());
} catch (Throwable t) {
logger.error(t.getMessage());
}
}
},
luceneRefreshSeconds,
luceneRefreshSeconds);
logger.debug("Created LuceneSingleton");
}
}
