/// <exception cref="System.IO.IOException"/>
public static void TrashNonDefaultFS(Configuration conf)
{
conf.SetLong(FsTrashIntervalKey, 10);
{
// 10 minute
// attempt non-default FileSystem trash
FileSystem lfs = FileSystem.GetLocal(conf);
Path p = TestDir;
Path f = new Path(p, "foo/bar");
if (lfs.Exists(p))
{
lfs.Delete(p, true);
}
try
{
FileSystemTestHelper.WriteFile(lfs, f, 10);
FileSystem.CloseAll();
FileSystem localFs = FileSystem.Get(URI.Create("file:///"), conf);
Trash lTrash = new Trash(localFs, conf);
lTrash.MoveToTrash(f.GetParent());
CheckTrash(localFs, lTrash.GetCurrentTrashDir(), f);
}
finally
{
if (lfs.Exists(p))
{
lfs.Delete(p, true);
}
}
}
}
/// <exception cref="System.IO.IOException"/>
protected internal virtual Trash GetTrash()
{
if (this.trash == null)
{
this.trash = new Trash(GetConf());
}
return(this.trash);
}
/// <exception cref="System.IO.IOException"/>
public virtual void TestPluggableTrash()
{
Configuration conf = new Configuration();
// Test plugged TrashPolicy
conf.SetClass("fs.trash.classname", typeof(TestTrash.TestTrashPolicy), typeof(TrashPolicy
));
Trash trash = new Trash(conf);
Assert.True(trash.GetTrashPolicy().GetType().Equals(typeof(TestTrash.TestTrashPolicy
)));
}
/// <exception cref="System.Exception"/>
public virtual void TestTrashEmptier()
{
Configuration conf = new Configuration();
// Trash with 12 second deletes and 6 seconds checkpoints
conf.Set(FsTrashIntervalKey, "0.2");
// 12 seconds
conf.SetClass("fs.file.impl", typeof(TestTrash.TestLFS), typeof(FileSystem));
conf.Set(FsTrashCheckpointIntervalKey, "0.1");
// 6 seconds
FileSystem fs = FileSystem.GetLocal(conf);
conf.Set("fs.default.name", fs.GetUri().ToString());
Trash trash = new Trash(conf);
// Start Emptier in background
Runnable emptier = trash.GetEmptier();
Thread emptierThread = new Thread(emptier);
emptierThread.Start();
FsShell shell = new FsShell();
shell.SetConf(conf);
shell.Init();
// First create a new directory with mkdirs
Path myPath = new Path(TestDir, "test/mkdirs");
Mkdir(fs, myPath);
int fileIndex = 0;
ICollection <string> checkpoints = new HashSet <string>();
while (true)
{
// Create a file with a new name
Path myFile = new Path(TestDir, "test/mkdirs/myFile" + fileIndex++);
FileSystemTestHelper.WriteFile(fs, myFile, 10);
// Delete the file to trash
string[] args = new string[2];
args[0] = "-rm";
args[1] = myFile.ToString();
int val = -1;
try
{
val = shell.Run(args);
}
catch (Exception e)
{
System.Console.Error.WriteLine("Exception raised from Trash.run " + e.GetLocalizedMessage
());
}
Assert.True(val == 0);
Path trashDir = shell.GetCurrentTrashDir();
FileStatus[] files = fs.ListStatus(trashDir.GetParent());
// Scan files in .Trash and add them to set of checkpoints
foreach (FileStatus file in files)
{
string fileName = file.GetPath().GetName();
checkpoints.AddItem(fileName);
}
// If checkpoints has 4 objects it is Current + 3 checkpoint directories
if (checkpoints.Count == 4)
{
// The actual contents should be smaller since the last checkpoint
// should've been deleted and Current might not have been recreated yet
Assert.True(checkpoints.Count > files.Length);
break;
}
Thread.Sleep(5000);
}
emptierThread.Interrupt();
emptierThread.Join();
}