名前

       guestfs-java - Java から libguestfs を使用する方法

書式

        import com.redhat.et.libguestfs.*;

        GuestFS g = new GuestFS ();
        g.add_drive ("disk.img",
                     new HashMap<String,Object>() {
                       {
                           put ("readonly", Boolean.TRUE);
                           put ("format", "raw");
                       }
                     });
        g.launch ();

説明

       This manual page documents how to call libguestfs from the Java programming language.
       This page just documents the differences from the C API and gives some examples.  If you
       are not familiar with using libguestfs, you also need to read guestfs(3).

   ハンドルの閉じ方
       The handle is closed when it is reaped by the garbage collector.  Because libguestfs
       handles include a lot of state, it is also possible to close (and hence free) them
       explicitly by calling the "close" method.

   例外
       Errors from libguestfs functions are mapped into the "LibGuestFSException" exception.
       This has a single parameter which is the error message (a "String").

       Calling any method on a closed handle raises the same exception.

   イベント
       The libguestfs event API is fully supported from Java.  Create a class which implements
       the "EventCallback" interface, create an instance of this class, and then call the
       "GuestFS#set_event_callback" method to register this instance.  The "event" method of the
       class is called when libguestfs generates an event.

       For example, this will print all trace events:

        GuestFS g = new GuestFS ();
        g.set_trace (true);
        g.set_event_callback (
          new EventCallback () {
            public void event (long event, int eh,
                               String buffer, long[] array) {
              System.out.println (GuestFS.eventToString (event) +
                                  ": " + buffer);
            }
          },
          GuestFS.EVENT_TRACE);
        g.add_drive_ro ("disk.img");
        // etc.

       The output looks similar to this:

        EVENT_TRACE: add_drive_ro "disk.img"
        EVENT_TRACE: add_drive_ro = 0
        // etc.

例 1: ディスクイメージの作成

       @EXAMPLE1@

例 2: 仮想マシンのディスクイメージの検査

       @EXAMPLE2@

関連項目

       guestfs(3), guestfs-examples(3), guestfs-erlang(3), guestfs-golang(3), guestfs-lua(3),
       guestfs-ocaml(3), guestfs-perl(3), guestfs-python(3), guestfs-recipes(1), guestfs-ruby(3),
       http://libguestfs.org/, http://caml.inria.fr/.

著者

       Richard W.M. Jones ("rjones at redhat dot com")

COPYRIGHT

       Copyright (C) 2011-2012 Red Hat Inc.

LICENSE

BUGS

       To get a list of bugs against libguestfs, use this link:
       https://bugzilla.redhat.com/buglist.cgi?component=libguestfs&product=Virtualization+Tools

       To report a new bug against libguestfs, use this link:
       https://bugzilla.redhat.com/enter_bug.cgi?component=libguestfs&product=Virtualization+Tools

       When reporting a bug, please supply:

       •   The version of libguestfs.

       •   Where you got libguestfs (eg. which Linux distro, compiled from source, etc)

       •   Describe the bug accurately and give a way to reproduce it.

       •   Run libguestfs-test-tool(1) and paste the complete, unedited output into the bug
           report.