How to use

StorageLocationConfig

in

org.apache.druid.segment.loading

 @Override
 public List<StorageLocationConfig> getLocations()
 {
  return Collections.singletonList(
    new StorageLocationConfig().setPath(cacheDir)
  );
 }
},

@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()
  ));
 }
}

@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
 );
}

public File getInfoDir()
{
 if (infoDir == null) {
  if (locations == null || locations.size() == 0) {
   throw new ISE("You have no segment cache locations defined. Please configure druid.segmentCache.locations to use one or more locations.");
  }
  infoDir = new File(locations.get(0).getPath(), "info_dir");
 }
 return infoDir;
}

final StorageLocationConfig locationConfig = new StorageLocationConfig();
final File localStorageFolder = tmpFolder.newFolder("local_storage_folder");
locationConfig.setPath(localStorageFolder);
locationConfig.setMaxSize(1000000000L);
locations.add(locationConfig);
final StorageLocationConfig locationConfig2 = new StorageLocationConfig();
final File localStorageFolder2 = tmpFolder.newFolder("local_storage_folder2");
locationConfig2.setPath(localStorageFolder2);
locationConfig2.setMaxSize(10000000L);
locations.add(locationConfig2);

 @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]));
 }
}

final StorageLocationConfig locationConfig = new StorageLocationConfig();
locationConfig.setPath(localStorageFolder);
locationConfig.setMaxSize(10000000000L);
locations.add(locationConfig);
final StorageLocationConfig locationConfig2 = new StorageLocationConfig();
final File localStorageFolder2 = tmpFolder.newFolder("local_storage_folder2");
locationConfig2.setPath(localStorageFolder2);
locationConfig2.setMaxSize(1000000000L);
locations.add(locationConfig2);

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

@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()
  ));
 }
}

public File getInfoDir()
{
 if (infoDir == null) {
  if (locations == null || locations.size() == 0) {
   throw new ISE("You have no segment cache locations defined. Please configure druid.segmentCache.locations to use one or more locations.");
  }
  infoDir = new File(locations.get(0).getPath(), "info_dir");
 }
 return infoDir;
}

final StorageLocationConfig locationConfig = new StorageLocationConfig();
final File localStorageFolder = tmpFolder.newFolder("local_storage_folder");
locationConfig.setPath(localStorageFolder);
locationConfig.setMaxSize(1000000000L);
locations.add(locationConfig);
final StorageLocationConfig locationConfig2 = new StorageLocationConfig();
final File localStorageFolder2 = tmpFolder.newFolder("local_storage_folder2");
locationConfig2.setPath(localStorageFolder2);
locationConfig2.setMaxSize(10000000L);
locations.add(locationConfig2);

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

 @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]));
 }
}

final StorageLocationConfig locationConfig = new StorageLocationConfig();
final File localStorageFolder = tmpFolder.newFolder("local_storage_folder");
localStorageFolder.setWritable(true);
locationConfig.setPath(localStorageFolder);
locationConfig.setMaxSize(10L);
locations.add(locationConfig);
final StorageLocationConfig locationConfig2 = new StorageLocationConfig();
final File localStorageFolder2 = tmpFolder.newFolder("local_storage_folder2");
localStorageFolder2.setWritable(true);
locationConfig2.setPath(localStorageFolder2);
locationConfig2.setMaxSize(10L);
locations.add(locationConfig2);