public void deleteSegment(SegmentDescriptor descriptor) throws IOException {
indexService.deleteIndex(descriptor);
File segmentFile = fileService.createSegmentFile(descriptor);
if (segmentFile.exists()) {
assert segmentFile.delete();
}
}
public Segment createSegment(SegmentDescriptor descriptor) throws IOException {
File segmentFile = fileService.createSegmentFile(descriptor);
if (!segmentFile.exists()) {
if (!segmentFile.createNewFile()) {
throw new IOException("Error create new file: " + segmentFile);
}
}
return new Segment(
segmentFile, descriptor, indexService.createIndex(descriptor), streamService);
}