public SimpleFileStorage(FileSystemAbstraction fileSystem, File directory, string name, ChannelMarshal <T> marshal, LogProvider logProvider)
{
this._fileSystem = fileSystem;
this._log = logProvider.getLog(this.GetType());
this._file = new File(DurableStateStorage.StateDir(directory, name), name);
this._marshal = marshal;
}
internal LongState(FileSystemAbstraction fileSystemAbstraction, File stateDir, int numberOfEntriesBeforeRotation)
{
LifeSupport.start();
StateMarshal <long> byteBufferMarshal = new SafeStateMarshalAnonymousInnerClass(this);
this.StateStorage = LifeSupport.add(new DurableStateStorage <>(fileSystemAbstraction, stateDir, FILENAME, byteBufferMarshal, numberOfEntriesBeforeRotation, NullLogProvider.Instance));
this.TheStateConflict = this.StateStorage.InitialState;
}
//JAVA TO C# CONVERTER TODO TASK: Most Java annotations will not have direct .NET equivalent attributes:
//ORIGINAL LINE: @Test public void shouldClearFileOnFirstUse() throws Throwable
//JAVA TO C# CONVERTER WARNING: Method 'throws' clauses are not available in C#:
public virtual void ShouldClearFileOnFirstUse()
{
// given
EphemeralFileSystemAbstraction fsa = _fileSystemRule.get();
fsa.Mkdir(_testDir.directory());
int rotationCount = 10;
DurableStateStorage <AtomicInteger> storage = new DurableStateStorage <AtomicInteger>(fsa, _testDir.directory(), "state", new AtomicIntegerMarshal(), rotationCount, NullLogProvider.Instance);
int largestValueWritten = 0;
using (Lifespan lifespan = new Lifespan(storage))
{
for ( ; largestValueWritten < rotationCount * 2; largestValueWritten++)
{
storage.PersistStoreData(new AtomicInteger(largestValueWritten));
}
}
// now both files are full. We reopen, then write some more.
storage = _lifeRule.add(new DurableStateStorage <>(fsa, _testDir.directory(), "state", new AtomicIntegerMarshal(), rotationCount, NullLogProvider.Instance));
storage.PersistStoreData(new AtomicInteger(largestValueWritten++));
storage.PersistStoreData(new AtomicInteger(largestValueWritten++));
storage.PersistStoreData(new AtomicInteger(largestValueWritten));
/*
* We have written stuff in fileA but not gotten to the end (resulting in rotation). The largestValueWritten
* should nevertheless be correct
*/
ByteBuffer forReadingBackIn = ByteBuffer.allocate(10_000);
StoreChannel lastWrittenTo = fsa.Open(StateFileA(), OpenMode.READ);
lastWrittenTo.read(forReadingBackIn);
forReadingBackIn.flip();
AtomicInteger lastRead = null;
while (true)
{
try
{
lastRead = new AtomicInteger(forReadingBackIn.Int);
}
catch (BufferUnderflowException)
{
break;
}
}
// then
assertNotNull(lastRead);
assertEquals(largestValueWritten, lastRead.get());
}
//JAVA TO C# CONVERTER TODO TASK: Most Java annotations will not have direct .NET equivalent attributes:
//ORIGINAL LINE: @Test public void shouldMaintainStateGivenAnEmptyInitialStore() throws Exception
//JAVA TO C# CONVERTER WARNING: Method 'throws' clauses are not available in C#:
public virtual void ShouldMaintainStateGivenAnEmptyInitialStore()
{
// given
EphemeralFileSystemAbstraction fsa = _fileSystemRule.get();
fsa.Mkdir(_testDir.directory());
DurableStateStorage <AtomicInteger> storage = _lifeRule.add(new DurableStateStorage <AtomicInteger>(fsa, _testDir.directory(), "state", new AtomicIntegerMarshal(), 100, NullLogProvider.Instance));
// when
storage.PersistStoreData(new AtomicInteger(99));
// then
assertEquals(4, fsa.GetFileSize(StateFileA()));
}
//JAVA TO C# CONVERTER TODO TASK: Most Java annotations will not have direct .NET equivalent attributes:
//ORIGINAL LINE: @Test public void shouldRotateToOtherStoreFileAfterSufficientEntries() throws Exception
//JAVA TO C# CONVERTER WARNING: Method 'throws' clauses are not available in C#:
public virtual void ShouldRotateToOtherStoreFileAfterSufficientEntries()
{
// given
EphemeralFileSystemAbstraction fsa = _fileSystemRule.get();
fsa.Mkdir(_testDir.directory());
const int numberOfEntriesBeforeRotation = 100;
DurableStateStorage <AtomicInteger> storage = _lifeRule.add(new DurableStateStorage <AtomicInteger>(fsa, _testDir.directory(), "state", new AtomicIntegerMarshal(), numberOfEntriesBeforeRotation, NullLogProvider.Instance));
// when
for (int i = 0; i < numberOfEntriesBeforeRotation; i++)
{
storage.PersistStoreData(new AtomicInteger(i));
}
// Force the rotation
storage.PersistStoreData(new AtomicInteger(9999));
// then
assertEquals(4, fsa.GetFileSize(StateFileB()));
assertEquals(numberOfEntriesBeforeRotation * 4, fsa.GetFileSize(StateFileA()));
}
