How to use

SegmentLoaderConfig

in

org.apache.druid.segment.loading

 public SegmentLoader manufacturate(File storageDir)
 {
  return loader.withConfig(
    new SegmentLoaderConfig().withLocations(Collections.singletonList(new StorageLocationConfig().setPath(storageDir)))
  );
 }
}

    new BackgroundSegmentAnnouncer(announcer, exec, config.getAnnounceIntervalMillis())) {
loadingExecutor = Execs.multiThreaded(config.getNumBootstrapThreads(), "Segment-Load-Startup-%s");

 @Override
 public void run()
 {
  try {
   synchronized (segmentDeleteLock) {
    if (segmentsToDelete.remove(segment)) {
     segmentManager.dropSegment(segment);
     File segmentInfoCacheFile = new File(config.getInfoDir(), segment.getId().toString());
     if (!segmentInfoCacheFile.delete()) {
      log.warn("Unable to delete segmentInfoCacheFile[%s]", segmentInfoCacheFile);
     }
    }
   }
  }
  catch (Exception e) {
   log.makeAlert(e, "Failed to remove segment! Possible resource leak!")
     .addData("segment", segment)
     .emit();
  }
 }
};

public SegmentLoaderConfig withLocations(List<StorageLocationConfig> locations)
{
 SegmentLoaderConfig retVal = new SegmentLoaderConfig();
 retVal.locations = Lists.newArrayList(locations);
 retVal.deleteOnRemove = this.deleteOnRemove;
 retVal.infoDir = this.infoDir;
 return retVal;
}

 @Inject
 public DruidSysMonitor(
   SegmentLoaderConfig config
 )
 {
  final List<StorageLocationConfig> locs = config.getLocations();
  List<String> dirs = Lists.newArrayListWithExpectedSize(locs.size());
  for (StorageLocationConfig loc : locs) {
   dirs.add(loc.getPath().toString());
  }

  addDirectoriesToMonitor(dirs.toArray(new String[0]));
 }
}

  "Completely removing [%s] in [%,d] millis",
  segment.getId(),
  config.getDropSegmentDelayMillis()
);
exec.schedule(
  runnable,
  config.getDropSegmentDelayMillis(),
  TimeUnit.MILLISECONDS
);

new SegmentLoaderConfig(),
EasyMock.createNiceMock(DataSegmentAnnouncer.class),
EasyMock.createNiceMock(DataSegmentServerAnnouncer.class),

@Inject
public SegmentLoaderLocalCacheManager(
  IndexIO indexIO,
  SegmentLoaderConfig config,
  @Json ObjectMapper mapper
)
{
 this.indexIO = indexIO;
 this.config = config;
 this.jsonMapper = mapper;
 this.locations = new ArrayList<>();
 for (StorageLocationConfig locationConfig : config.getLocations()) {
  locations.add(new StorageLocation(
    locationConfig.getPath(),
    locationConfig.getMaxSize(),
    locationConfig.getFreeSpacePercent()
  ));
 }
}

  "Completely removing [%s] in [%,d] millis",
  segment.getIdentifier(),
  config.getDropSegmentDelayMillis()
);
exec.schedule(
  runnable,
  config.getDropSegmentDelayMillis(),
  TimeUnit.MILLISECONDS
);

   .toInstance(new SegmentLoaderConfig().withLocations(Collections.emptyList()));
binder.bind(CoordinatorClient.class).in(LazySingleton.class);

public SegmentLoaderConfig withLocations(List<StorageLocationConfig> locations)
{
 SegmentLoaderConfig retVal = new SegmentLoaderConfig();
 retVal.locations = Lists.newArrayList(locations);
 retVal.deleteOnRemove = this.deleteOnRemove;
 retVal.infoDir = this.infoDir;
 return retVal;
}

    new BackgroundSegmentAnnouncer(announcer, exec, config.getAnnounceIntervalMillis())) {
loadingExecutor = Execs.multiThreaded(config.getNumBootstrapThreads(), "Segment-Load-Startup-%s");

File segmentInfoCacheFile = new File(config.getInfoDir(), segment.getId().toString());
if (!segmentInfoCacheFile.exists()) {
 try {

 @Inject
 public DruidSysMonitor(
   SegmentLoaderConfig config
 )
 {
  final List<StorageLocationConfig> locs = config.getLocations();
  List<String> dirs = Lists.newArrayListWithExpectedSize(locs.size());
  for (StorageLocationConfig loc : locs) {
   dirs.add(loc.getPath().toString());
  }

  addDirectoriesToMonitor(dirs.toArray(new String[0]));
 }
}

@Before
public void setUp() throws Exception
{
 EmittingLogger.registerEmitter(new NoopServiceEmitter());
 localSegmentCacheFolder = tmpFolder.newFolder("segment_cache_folder");
 final List<StorageLocationConfig> locations = new ArrayList<>();
 final StorageLocationConfig locationConfig = new StorageLocationConfig();
 locationConfig.setPath(localSegmentCacheFolder);
 locationConfig.setMaxSize(10000000000L);
 locations.add(locationConfig);
 manager = new SegmentLoaderLocalCacheManager(
   TestHelper.getTestIndexIO(),
   new SegmentLoaderConfig().withLocations(locations),
   jsonMapper
 );
}

private void loadLocalCache()
 File baseDir = config.getInfoDir();
 if (!baseDir.isDirectory()) {
  if (baseDir.exists()) {

@Inject
public SegmentLoaderLocalCacheManager(
  IndexIO indexIO,
  SegmentLoaderConfig config,
  @Json ObjectMapper mapper
)
{
 this.indexIO = indexIO;
 this.config = config;
 this.jsonMapper = mapper;
 this.locations = Lists.newArrayList();
 for (StorageLocationConfig locationConfig : config.getLocations()) {
  locations.add(new StorageLocation(
    locationConfig.getPath(),
    locationConfig.getMaxSize(),
    locationConfig.getFreeSpacePercent()
  ));
 }
}

  new SegmentLoaderConfig().withLocations(locations),
  jsonMapper
);

File segmentInfoCacheFile = new File(config.getInfoDir(), segment.getIdentifier());
if (!segmentInfoCacheFile.exists()) {
 try {

  new SegmentLoaderConfig().withLocations(locations),
  jsonMapper
);