Trait

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

FileManager

Related Doc: package HDFSMetadataLog

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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

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    Create path, or throw exception if it already exists

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

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    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

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    Whether path exists

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

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    List the files in a path that matches a filter.

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

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

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

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

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

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    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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