/// <summary>
/// Creates a new id file.
/// </summary>
/// <param name="file"> The name of the id generator </param>
/// <param name="throwIfFileExists"> if {@code true} will cause an <seealso cref="System.InvalidOperationException"/> to be thrown if
/// the file already exists. if {@code false} will truncate the file writing the header in it. </param>
public static void CreateEmptyIdFile(FileSystemAbstraction fs, File file, long highId, bool throwIfFileExists)
{
// sanity checks
if (fs == null)
{
throw new System.ArgumentException("Null filesystem");
}
if (file == null)
{
throw new System.ArgumentException("Null filename");
}
if (throwIfFileExists && fs.FileExists(file))
{
throw new System.InvalidOperationException("Can't create id file [" + file + "], file already exists");
}
try
{
using (StoreChannel channel = fs.Create(file))
{
// write the header
channel.Truncate(0);
ByteBuffer buffer = ByteBuffer.allocate(HeaderSize);
buffer.put(_cleanGenerator).putLong(highId).flip();
channel.WriteAll(buffer);
channel.Force(false);
}
}
catch (IOException e)
{
throw new UnderlyingStorageException("Unable to create id file " + file, e);
}
}
//JAVA TO C# CONVERTER WARNING: Method 'throws' clauses are not available in C#:
//ORIGINAL LINE: private static java.io.File createNeoStoreFile(org.neo4j.io.fs.FileSystemAbstraction fileSystem, org.neo4j.io.layout.DatabaseLayout databaseLayout) throws java.io.IOException
private static File CreateNeoStoreFile(FileSystemAbstraction fileSystem, DatabaseLayout databaseLayout)
{
File neoStoreFile = databaseLayout.MetadataStore();
fileSystem.Create(neoStoreFile).close();
return(neoStoreFile);
}
//JAVA TO C# CONVERTER TODO TASK: Most Java annotations will not have direct .NET equivalent attributes:
//ORIGINAL LINE: @Test public void shouldHandleStoreConsistingOfOneEmptyFile() throws Exception
//JAVA TO C# CONVERTER WARNING: Method 'throws' clauses are not available in C#:
public virtual void ShouldHandleStoreConsistingOfOneEmptyFile()
{
StoreFactory storeFactory = storeFactory(Config.defaults());
FileSystemAbstraction fs = _fsRule.get();
fs.Create(_testDirectory.databaseLayout().file("neostore.nodestore.db.labels"));
storeFactory.OpenAllNeoStores(true).close();
}
//JAVA TO C# CONVERTER WARNING: Method 'throws' clauses are not available in C#:
//ORIGINAL LINE: private java.io.File emptyFile(org.neo4j.io.fs.FileSystemAbstraction fs) throws java.io.IOException
private File EmptyFile(FileSystemAbstraction fs)
{
File shortFile = _directory.file("empty");
fs.DeleteFile(shortFile);
fs.Create(shortFile).close();
return(shortFile);
}
//JAVA TO C# CONVERTER TODO TASK: Most Java annotations will not have direct .NET equivalent attributes:
//ORIGINAL LINE: @Test public void skipLogFileWithoutHeader() throws java.io.IOException
//JAVA TO C# CONVERTER WARNING: Method 'throws' clauses are not available in C#:
public virtual void SkipLogFileWithoutHeader()
{
FileSystemAbstraction fs = _fileSystemRule.get();
LogFiles logFiles = LogFilesBuilder.builder(_directory.databaseLayout(), fs).withTransactionIdStore(_transactionIdStore).withLogVersionRepository(_logVersionRepository).build();
_life.add(logFiles);
_life.start();
// simulate new file without header presence
_logVersionRepository.incrementAndGetVersion();
fs.Create(logFiles.GetLogFileForVersion(_logVersionRepository.CurrentLogVersion)).close();
_transactionIdStore.transactionCommitted(5L, 5L, 5L);
PhysicalLogicalTransactionStore.LogVersionLocator versionLocator = new PhysicalLogicalTransactionStore.LogVersionLocator(4L);
logFiles.Accept(versionLocator);
LogPosition logPosition = versionLocator.LogPosition;
assertEquals(1, logPosition.LogVersion);
}
//JAVA TO C# CONVERTER WARNING: Method 'throws' clauses are not available in C#:
//ORIGINAL LINE: public org.neo4j.io.fs.StoreChannel create(java.io.File fileName) throws java.io.IOException
public override StoreChannel Create(File fileName)
{
return(@delegate.Create(fileName));
}