private void CheckDiskFull(byte[] b, int offset, DataInput @in, long len)
{
long freeSpace = dir.maxSize == 0 ? 0 : dir.maxSize - dir.GetSizeInBytes();
long realUsage = 0;
// Enforce disk full:
if (dir.maxSize != 0 && freeSpace <= len)
{
// Compute the real disk free. this will greatly slow
// down our test but makes it more accurate:
realUsage = dir.GetRecomputedActualSizeInBytes();
freeSpace = dir.maxSize - realUsage;
}
if (dir.maxSize != 0 && freeSpace <= len)
{
if (freeSpace > 0)
{
realUsage += freeSpace;
if (b != null)
{
@delegate.WriteBytes(b, offset, (int)freeSpace);
}
else
{
@delegate.CopyBytes(@in, len);
}
}
if (realUsage > dir.maxUsedSize)
{
dir.maxUsedSize = realUsage;
}
string message = "fake disk full at " + dir.GetRecomputedActualSizeInBytes() + " bytes when writing " + name + " (file length=" + @delegate.Length;
if (freeSpace > 0)
{
message += "; wrote " + freeSpace + " of " + len + " bytes";
}
message += ")";
// LUCENENET TODO: Finish implementation
/*if (LuceneTestCase.VERBOSE)
* {
* Console.WriteLine(Thread.CurrentThread.Name + ": MDW: now throw fake disk full");
* (new Exception()).printStackTrace(System.out);
* }*/
throw new IOException(message);
}
}
public virtual void TestImmediateDiskFull([ValueSource(typeof(ConcurrentMergeSchedulerFactories), "Values")] Func <IConcurrentMergeScheduler> newScheduler)
{
MockDirectoryWrapper dir = NewMockDirectory();
var config = NewIndexWriterConfig(TEST_VERSION_CURRENT, new MockAnalyzer(Random))
.SetMaxBufferedDocs(2)
.SetMergeScheduler(newScheduler());
IndexWriter writer = new IndexWriter(dir, config);
dir.MaxSizeInBytes = Math.Max(1, dir.GetRecomputedActualSizeInBytes());
Document doc = new Document();
FieldType customType = new FieldType(TextField.TYPE_STORED);
doc.Add(NewField("field", "aaa bbb ccc ddd eee fff ggg hhh iii jjj", customType));
try
{
writer.AddDocument(doc);
Assert.Fail("did not hit disk full");
}
catch (IOException)
{
}
// Without fix for LUCENE-1130: this call will hang:
try
{
writer.AddDocument(doc);
Assert.Fail("did not hit disk full");
}
catch (IOException)
{
}
try
{
writer.Dispose(false);
Assert.Fail("did not hit disk full");
}
catch (IOException)
{
}
// Make sure once disk space is avail again, we can
// cleanly close:
dir.MaxSizeInBytes = 0;
writer.Dispose(false);
dir.Dispose();
}
