org.apache.spark.sql.execution.streaming.HDFSMetadataLog

FileManager

trait FileManager extends AnyRef

A simple trait to abstract out the file management operations needed by HDFSMetadataLog.

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Abstract Value Members

  1. abstract def create(path: Path): FSDataOutputStream

    Create path, or throw exception if it already exists

  2. abstract def delete(path: Path): Unit

    Recursively delete a path if it exists.

    Recursively delete a path if it exists. Should not throw exception if file doesn't exist.

  3. abstract def exists(path: Path): Boolean

    Whether path exists

  4. abstract def list(path: Path, filter: PathFilter): Array[FileStatus]

    List the files in a path that matches a filter.

  5. abstract def mkdirs(path: Path): Unit

    Make directory at the give path and all its parent directories as needed.

  6. abstract def open(path: Path): FSDataInputStream

    Open a file for reading, or throw exception if it does not exist.

  7. abstract def rename(srcPath: Path, destPath: Path): Unit

    Atomically rename path, or throw exception if it cannot be done.

    Atomically rename path, or throw exception if it cannot be done. Should throw FileNotFoundException if srcPath does not exist. Should throw FileAlreadyExistsException if destPath already exists.

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