/** Generate a spelling suggestion for the definitions stored in defs */
public void createSpellingSuggestions() {
IndexReader indexReader = null;
SpellChecker checker;
try {
log.info("Generating spelling suggestion index ... ");
indexReader = DirectoryReader.open(indexDirectory);
checker = new SpellChecker(spellDirectory);
// TODO below seems only to index "defs" , possible bug ?
Analyzer analyzer = AnalyzerGuru.getAnalyzer();
IndexWriterConfig iwc = new IndexWriterConfig(SearchEngine.LUCENE_VERSION, analyzer);
iwc.setOpenMode(OpenMode.CREATE_OR_APPEND);
checker.indexDictionary(new LuceneDictionary(indexReader, QueryBuilder.DEFS), iwc, false);
log.info("done");
} catch (IOException e) {
log.log(Level.SEVERE, "ERROR: Generating spelling: {0}", e);
} finally {
if (indexReader != null) {
try {
indexReader.close();
} catch (IOException e) {
log.log(Level.WARNING, "An error occured while closing reader", e);
}
}
if (spellDirectory != null) {
spellDirectory.close();
}
}
}
@Override
public void stop(BundleContext context) throws Exception {
super.stop(context);
if (directory != null) directory.close();
INSTANCE = null;
directory = null;
logger.info("Stopping Lucene Index");
}
private RAMDirectory(FSDirectory dir, boolean closeDir, IOContext context) throws IOException {
this();
for (String file : dir.listAll()) {
if (!Files.isDirectory(dir.getDirectory().resolve(file))) {
copyFrom(dir, file, file, context);
}
}
if (closeDir) {
dir.close();
}
}
public void stop() {
@SuppressWarnings("unused")
int readCurrentState =
current; // Another unneeded value, to ensure visibility of state protected by memory
// barrier
timer.cancel();
task.stop();
try {
directory.close();
} catch (Exception e) {
log.unableToCloseLuceneDirectory(directory.getDirectory(), e);
}
}
@PreDestroy
private void exit() {
timer.cancel();
try {
logger.debug("Closing IndexWriter for directory lockid " + directory.getLockID());
iwriter.commit();
iwriter.close();
iwriter = null;
logger.debug("IndexWriter closed for directory lockid " + directory.getLockID());
searcherManager.close();
logger.debug("SearcherManager closed for directory lockid " + directory.getLockID());
directory.close();
directory = null;
logger.info("Directory closed");
} catch (Exception e) {
StringWriter errors = new StringWriter();
e.printStackTrace(new PrintWriter(errors));
logger.fatal(errors.toString());
}
}
/**
* Index the fileset.
*
* @exception IOException if Lucene I/O exception TODO: refactor!!!!!
*/
private void indexDocs() throws IOException {
Date start = new Date();
boolean create = overwrite;
// If the index directory doesn't exist,
// create it and force create mode
if (indexDir.mkdirs() && !overwrite) {
create = true;
}
FSDirectory dir = FSDirectory.open(indexDir);
try {
Searcher searcher = null;
boolean checkLastModified = false;
if (!create) {
try {
searcher = new IndexSearcher(dir, true);
checkLastModified = true;
} catch (IOException ioe) {
log("IOException: " + ioe.getMessage());
// Empty - ignore, which indicates to index all
// documents
}
}
log("checkLastModified = " + checkLastModified, Project.MSG_VERBOSE);
IndexWriterConfig conf =
new IndexWriterConfig(Version.LUCENE_CURRENT, analyzer)
.setOpenMode(create ? OpenMode.CREATE : OpenMode.APPEND);
LogMergePolicy lmp = (LogMergePolicy) conf.getMergePolicy();
lmp.setUseCompoundFile(useCompoundIndex);
lmp.setMergeFactor(mergeFactor);
IndexWriter writer = new IndexWriter(dir, conf);
int totalFiles = 0;
int totalIndexed = 0;
int totalIgnored = 0;
try {
for (int i = 0; i < rcs.size(); i++) {
ResourceCollection rc = rcs.elementAt(i);
if (rc.isFilesystemOnly()) {
Iterator resources = rc.iterator();
while (resources.hasNext()) {
Resource r = (Resource) resources.next();
if (!r.isExists() || !(r instanceof FileResource)) {
continue;
}
totalFiles++;
File file = ((FileResource) r).getFile();
if (!file.exists() || !file.canRead()) {
throw new BuildException(
"File \"" + file.getAbsolutePath() + "\" does not exist or is not readable.");
}
boolean indexIt = true;
if (checkLastModified) {
Term pathTerm = new Term("path", file.getPath());
TermQuery query = new TermQuery(pathTerm);
ScoreDoc[] hits = searcher.search(query, null, 1).scoreDocs;
// if document is found, compare the
// indexed last modified time with the
// current file
// - don't index if up to date
if (hits.length > 0) {
Document doc = searcher.doc(hits[0].doc);
String indexModified = doc.get("modified").trim();
if (indexModified != null) {
long lastModified = 0;
try {
lastModified = DateTools.stringToTime(indexModified);
} catch (ParseException e) {
// if modified time is not parsable, skip
}
if (lastModified == file.lastModified()) {
// TODO: remove existing document
indexIt = false;
}
}
}
}
if (indexIt) {
try {
log("Indexing " + file.getPath(), Project.MSG_VERBOSE);
Document doc = handler.getDocument(file);
if (doc == null) {
totalIgnored++;
} else {
// Add the path of the file as a field named "path". Use a Keyword field, so
// that the index stores the path, and so that the path is searchable
doc.add(
new Field(
"path", file.getPath(), Field.Store.YES, Field.Index.NOT_ANALYZED));
// Add the last modified date of the file a field named "modified". Use a
// Keyword field, so that it's searchable, but so that no attempt is made
// to tokenize the field into words.
doc.add(
new Field(
"modified",
DateTools.timeToString(
file.lastModified(), DateTools.Resolution.MILLISECOND),
Field.Store.YES,
Field.Index.NOT_ANALYZED));
writer.addDocument(doc);
totalIndexed++;
}
} catch (DocumentHandlerException e) {
throw new BuildException(e);
}
}
}
// for j
}
// if (fs != null)
}
// for i
writer.optimize();
}
// try
finally {
// always make sure everything gets closed,
// no matter how we exit.
writer.close();
if (searcher != null) {
searcher.close();
}
}
Date end = new Date();
log(
totalIndexed
+ " out of "
+ totalFiles
+ " indexed ("
+ totalIgnored
+ " ignored) in "
+ (end.getTime() - start.getTime())
+ " milliseconds");
} finally {
dir.close();
}
}
public void convert(Application app, File dbhome) throws Exception {
FSDirectory indexDir = FSDirectory.getDirectory(dbhome, false);
if (indexDir instanceof TransFSDirectory) {
FSDirectory.setDisableLocks(true);
TransFSDirectory d = (TransFSDirectory) indexDir;
TransSource source = app.getTransSource();
d.setDriverClass(source.getDriverClass());
d.setUrl(source.getUrl());
d.setUser(source.getUser());
d.setPassword(source.getPassword());
}
File ndbhome = new File(dbhome.getParentFile(), dbhome.getName() + "_tmp");
File olddbhome = new File(dbhome.getParentFile(), dbhome.getName() + "_old");
FSDirectory nindexDir = FSDirectory.getDirectory(ndbhome, true);
if (nindexDir instanceof TransFSDirectory) {
FSDirectory.setDisableLocks(true);
TransFSDirectory d = (TransFSDirectory) nindexDir;
TransSource source = app.getTransSource();
d.setDriverClass(source.getDriverClass());
d.setUrl(source.getUrl());
d.setUser(source.getUser());
d.setPassword(source.getPassword());
}
IndexSearcher searcher = null;
IndexWriter writer = null;
LuceneManager lmgr = null;
try {
searcher = new IndexSearcher(indexDir);
PerFieldAnalyzerWrapper a = LuceneManager.buildAnalyzer();
writer = IndexWriterManager.getWriter(nindexDir, a, true);
final int numDocs = searcher.getIndexReader().numDocs();
HashSet deldocs = new HashSet();
HashMap infos = new HashMap();
for (int i = 0; i < numDocs; i++) {
Document doc = searcher.doc(i);
String delprop = doc.get(DeletedInfos.DELETED);
String layerStr = doc.get(LuceneManager.LAYER_OF_SAVE);
int layer = -1;
try {
layer = Integer.parseInt(layerStr);
} catch (Exception ex) {
layer = -1;
}
final String id =
doc.get(LuceneManager.ID)
+ DeletedInfos.KEY_SEPERATOR
+ doc.get(LuceneManager.LAYER_OF_SAVE);
if (delprop != null && "true".equals(delprop) /* && layer == DbKey.LIVE_LAYER*/) {
deldocs.add(id);
} else {
Object v;
if ((v = infos.get(id)) == null) {
infos.put(id, new Integer(i));
} else {
final String lmod = doc.get(LuceneManager.LASTMODIFIED);
final String lmod_prev = searcher.doc(((Integer) v).intValue()).get("_lastmodified");
if (lmod_prev == null || (lmod != null && lmod.compareTo(lmod_prev) > 0)) {
infos.put(id, new Integer(i));
}
}
}
}
ArrayList listOfMaps = new ArrayList();
for (int i = 0; i < numDocs; i++) {
Document doc = searcher.doc(i);
String delprop = doc.get(DeletedInfos.DELETED);
String layerStr = doc.get(LuceneManager.LAYER_OF_SAVE);
int layer = -1;
try {
layer = Integer.parseInt(layerStr);
} catch (Exception ex) {
layer = -1;
}
final String id =
doc.get(LuceneManager.ID)
+ DeletedInfos.KEY_SEPERATOR
+ doc.get(LuceneManager.LAYER_OF_SAVE);
if (delprop != null && "true".equals(delprop)) {
continue;
} else if (id != null && deldocs.contains(id) /* && layer == DbKey.LIVE_LAYER*/) {
continue;
}
Integer idx = (Integer) infos.get(id);
if (idx != null && i != idx.intValue()) {
continue;
}
Document ndoc = convertDocument(doc);
if (this.recordNodes) {
listOfMaps.add(LuceneManager.luceneDocumentToMap(doc));
}
if (ndoc != null) {
writer.addDocument(ndoc);
}
}
if (this.recordNodes) {
lmgr = new LuceneManager(this.app, false, true);
this.allNodes = new HashMap();
final int size = listOfMaps.size();
for (int i = 0; i < size; i++) {
HashMap m = (HashMap) listOfMaps.get(i);
INode n = lmgr.mapToNode(m);
this.allNodes.put(n.getID(), getPath(n));
n = null;
}
}
} catch (Exception ex) {
ex.printStackTrace();
throw new RuntimeException(ex);
} finally {
if (searcher != null) {
try {
searcher.close();
} catch (Exception ex) {
app.logError(ErrorReporter.errorMsg(this.getClass(), "convert"), ex);
}
}
if (lmgr != null) {
lmgr.shutdown();
lmgr = null;
}
indexDir.close();
SegmentInfos sinfos = IndexObjectsFactory.getFSSegmentInfos(indexDir);
sinfos.clear();
IndexObjectsFactory.removeDeletedInfos(indexDir);
}
Connection conn = null;
boolean exceptionOccured = false;
try {
if (writer != null) {
TransSource ts = app.getTransSource();
conn = ts.getConnection();
DatabaseMetaData dmd = conn.getMetaData();
ResultSet rs = dmd.getColumns(null, null, "Lucene", "version");
if (!rs.next()) {
final String alterTbl = "ALTER TABLE Lucene ADD version INT NOT NULL DEFAULT 1";
PreparedStatement pstmt = null;
try {
pstmt = conn.prepareStatement(alterTbl);
pstmt.execute();
} catch (SQLException sqle) {
app.logError(ErrorReporter.errorMsg(this.getClass(), "convert"), sqle);
} finally {
if (pstmt != null) {
pstmt.close();
pstmt = null;
}
}
}
rs.close();
rs = null;
writer.close();
writer.flushCache(); // TODO:writer.writeSegmentsFile();
LuceneManager.commitSegments(conn, app, writer.getDirectory());
writer.finalizeTrans();
this.updateSQL(conn);
}
} catch (Exception ex) {
ex.printStackTrace();
exceptionOccured = true;
throw new RuntimeException(ex);
} finally {
if (conn != null) {
try {
if (!conn.getAutoCommit()) {
if (!exceptionOccured) {
conn.commit();
} else {
conn.rollback();
}
}
conn.close();
} catch (Exception ex) {
app.logError(ErrorReporter.errorMsg(this.getClass(), "convert"), ex);
}
conn = null;
}
nindexDir.close();
SegmentInfos sinfos = IndexObjectsFactory.getFSSegmentInfos(nindexDir);
sinfos.clear();
IndexObjectsFactory.removeDeletedInfos(nindexDir);
}
if (!dbhome.renameTo(olddbhome)) {
throw new Exception("Could not move the old version of the db into " + olddbhome);
}
if (!ndbhome.renameTo(dbhome)) {
throw new Exception("Could not move the newer version of the db into " + dbhome);
}
File oldBlobDir = new File(olddbhome, "blob");
File newBlobDir = new File(ndbhome, "blob");
oldBlobDir.renameTo(newBlobDir);
if (!FileUtils.deleteDir(olddbhome)) {
throw new Exception("Could not delete the old version of the db at " + olddbhome);
}
}
