/**
* Add a file to the Lucene index (and generate a xref file)
*
* @param file The file to add
* @param path The path to the file (from source root)
* @throws java.io.IOException if an error occurs
*/
private void addFile(File file, String path) throws IOException {
try (InputStream in = new BufferedInputStream(new FileInputStream(file))) {
FileAnalyzer fa = AnalyzerGuru.getAnalyzer(in, path);
for (IndexChangedListener listener : listeners) {
listener.fileAdd(path, fa.getClass().getSimpleName());
}
fa.setCtags(ctags);
fa.setProject(Project.getProject(path));
Document d;
try {
d = analyzerGuru.getDocument(file, in, path, fa);
} catch (Exception e) {
log.log(
Level.INFO,
"Skipped file ''{0}'' because the analyzer didn''t " + "understand it.",
path);
StringBuilder stack = new StringBuilder();
for (StackTraceElement ste : e.getStackTrace()) {
stack.append(ste.toString()).append(System.lineSeparator());
}
StringBuilder sstack = new StringBuilder();
for (Throwable t : e.getSuppressed()) {
for (StackTraceElement ste : t.getStackTrace()) {
sstack.append(ste.toString()).append(System.lineSeparator());
}
}
log.log(
Level.FINE,
"Exception from analyzer {0}: {1} {2}{3}{4}{5}{6}",
new String[] {
fa.getClass().getName(),
e.toString(),
System.lineSeparator(),
stack.toString(),
System.lineSeparator(),
sstack.toString()
});
return;
}
writer.addDocument(d, fa);
Genre g = fa.getFactory().getGenre();
if (xrefDir != null && (g == Genre.PLAIN || g == Genre.XREFABLE)) {
File xrefFile = new File(xrefDir, path);
// If mkdirs() returns false, the failure is most likely
// because the file already exists. But to check for the
// file first and only add it if it doesn't exists would
// only increase the file IO...
if (!xrefFile.getParentFile().mkdirs()) {
assert xrefFile.getParentFile().exists();
}
fa.writeXref(xrefDir, path);
}
setDirty();
for (IndexChangedListener listener : listeners) {
listener.fileAdded(path, fa.getClass().getSimpleName());
}
}
}
/**
* Remove a stale file (uidIter.term().text()) from the index database (and the xref file)
*
* @throws java.io.IOException if an error occurs
*/
private void removeFile() throws IOException {
String path = Util.uid2url(uidIter.term().utf8ToString());
for (IndexChangedListener listener : listeners) {
listener.fileRemove(path);
}
writer.deleteDocuments(new Term(QueryBuilder.U, uidIter.term()));
writer.prepareCommit();
writer.commit();
File xrefFile;
if (RuntimeEnvironment.getInstance().isCompressXref()) {
xrefFile = new File(xrefDir, path + ".gz");
} else {
xrefFile = new File(xrefDir, path);
}
File parent = xrefFile.getParentFile();
if (!xrefFile.delete() && xrefFile.exists()) {
log.log(Level.INFO, "Failed to remove obsolete xref-file: {0}", xrefFile.getAbsolutePath());
}
// Remove the parent directory if it's empty
if (parent.delete()) {
log.log(Level.FINE, "Removed empty xref dir:{0}", parent.getAbsolutePath());
}
setDirty();
for (IndexChangedListener listener : listeners) {
listener.fileRemoved(path);
}
}