Package net.bytebuddy.utility

Class FileSystem

  • Direct Known Subclasses:
    FileSystem.ForLegacyVm, FileSystem.ForNio2CapableVm
    public abstract class FileSystem
extends java.lang.Object
    A dispatcher to interact with the file system. If NIO2 is available, the API is used. Otherwise, byte streams are used.

    • Nested Class Summary

      Nested Classes 
      Modifier and Type Class Description
      protected static class  FileSystem.ForLegacyVm
      A file system representation for a VM that does not support NIO2.
      protected static class  FileSystem.ForNio2CapableVm
      A file system representation for a VM that does support NIO2.

    • Constructor Summary

      Constructors 
      Constructor Description
      FileSystem()  

    • Method Summary

      All Methods Static Methods Instance Methods Abstract Methods Concrete Methods 
      Modifier and Type Method Description
      abstract void copy​(java.io.File source, java.io.File target)
      Copies a file.
      private static <T> T doPrivileged​(java.security.PrivilegedAction<T> action)
      A proxy for java.security.AccessController#doPrivileged that is activated if available.
      static FileSystem getInstance()
      Returns the FileSystem instance to use.
      void link​(java.io.File source, java.io.File target)
      Links a file as a hard-link.
      abstract void move​(java.io.File source, java.io.File target)
      Moves a file.

      • Methods inherited from class java.lang.Object

        clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

    • Constructor Detail

      • FileSystem

        public FileSystem()

    • Method Detail

      • doPrivileged

        @Enhance
private static <T> T doPrivileged​(java.security.PrivilegedAction<T> action)
        A proxy for java.security.AccessController#doPrivileged that is activated if available.
        Type Parameters:
        T - The type of the action's resolved value.
        Parameters:
        action - The action to execute from a privileged context.
        Returns:
        The action's resolved value.

      • copy

        public abstract void copy​(java.io.File source,
                          java.io.File target)
                   throws java.io.IOException
        Copies a file.
        Parameters:
        source - The source file.
        target - The target file.
        Throws:
        java.io.IOException - If an I/O exception occurs.

      • link

        public void link​(java.io.File source,
                 java.io.File target)
          throws java.io.IOException
        Links a file as a hard-link. If linking is not supported, a copy is made.
        Parameters:
        source - The source file.
        target - The target file.
        Throws:
        java.io.IOException - If an I/O exception occurs.

      • move

        public abstract void move​(java.io.File source,
                          java.io.File target)
                   throws java.io.IOException
        Moves a file.
        Parameters:
        source - The source file.
        target - The target file.
        Throws:
        java.io.IOException - If an I/O exception occurs.