Package io.trino.plugin.raptor.legacy.storage

Class FileStorageService

java.lang.Object
io.trino.plugin.raptor.legacy.storage.FileStorageService
All Implemented Interfaces:
StorageService
public class FileStorageService extends Object implements StorageService

  • Constructor Details

    • FileStorageService

      @Inject public FileStorageService(StorageManagerConfig config)

    • FileStorageService

      public FileStorageService(File dataDirectory)

  • Method Details

    • start

      @PostConstruct public void start()
      Specified by:
      start in interface StorageService

    • getAvailableBytes

      public long getAvailableBytes()
      Specified by:
      getAvailableBytes in interface StorageService

    • stop

      @PreDestroy public void stop() throws IOException
      Throws:
      IOException

    • getStorageFile

      public File getStorageFile(UUID shardUuid)
      Specified by:
      getStorageFile in interface StorageService

    • getStagingFile

      public File getStagingFile(UUID shardUuid)
      Specified by:
      getStagingFile in interface StorageService

    • getQuarantineFile

      public File getQuarantineFile(UUID shardUuid)
      Specified by:
      getQuarantineFile in interface StorageService

    • getStorageShards

      public Set<UUID> getStorageShards()
      Specified by:
      getStorageShards in interface StorageService

    • createParents

      public void createParents(File file)
      Specified by:
      createParents in interface StorageService

    • getFileSystemPath

      public static File getFileSystemPath(File base, UUID shardUuid)
      Generate a file system path for a shard UUID. This creates a three level deep directory structure where the first two levels each contain two hex digits (lowercase) of the UUID and the final level contains the full UUID. Example: 
       UUID: 701e1a79-74f7-4f56-b438-b41e8e7d019d
 Path: /base/70/1e/701e1a79-74f7-4f56-b438-b41e8e7d019d.orc
      This ensures that files are spread out evenly through the tree while a path can still be easily navigated by a human being.