//JAVA TO C# CONVERTER TODO TASK: Most Java annotations will not have direct .NET equivalent attributes:
//ORIGINAL LINE: @Test public void shouldReadFromMultipleChannels() throws Exception
//JAVA TO C# CONVERTER WARNING: Method 'throws' clauses are not available in C#:
public virtual void ShouldReadFromMultipleChannels()
{
// GIVEN
WriteSomeData(File(0), element =>
{
for (int i = 0; i < 10; i++)
{
element.putLong(i);
}
return(true);
});
WriteSomeData(File(1), element =>
{
for (int i = 10; i < 20; i++)
{
element.putLong(i);
}
return(true);
});
StoreChannel storeChannel = FileSystemRule.get().open(File(0), OpenMode.READ);
PhysicalLogVersionedStoreChannel versionedStoreChannel = new PhysicalLogVersionedStoreChannel(storeChannel, -1, ( sbyte )-1);
try (ReadAheadLogChannel channel = new ReadAheadLogChannel(versionedStoreChannel, new LogVersionBridgeAnonymousInnerClass(this)
, 10))
{
// THEN
for (long i = 0; i < 20; i++)
{
assertEquals(i, channel.Long);
}
}
}
//JAVA TO C# CONVERTER TODO TASK: Most Java annotations will not have direct .NET equivalent attributes:
//ORIGINAL LINE: @Test public void shouldOpenTheNextChannelWhenItExists() throws java.io.IOException
//JAVA TO C# CONVERTER WARNING: Method 'throws' clauses are not available in C#:
public virtual void ShouldOpenTheNextChannelWhenItExists()
{
// given
//JAVA TO C# CONVERTER WARNING: The original Java variable was marked 'final':
//ORIGINAL LINE: final org.neo4j.io.fs.StoreChannel newStoreChannel = mock(org.neo4j.io.fs.StoreChannel.class);
StoreChannel newStoreChannel = mock(typeof(StoreChannel));
//JAVA TO C# CONVERTER WARNING: The original Java variable was marked 'final':
//ORIGINAL LINE: final org.neo4j.kernel.impl.transaction.log.ReaderLogVersionBridge bridge = new org.neo4j.kernel.impl.transaction.log.ReaderLogVersionBridge(logFiles);
ReaderLogVersionBridge bridge = new ReaderLogVersionBridge(_logFiles);
when(_channel.Version).thenReturn(_version);
when(_channel.LogFormatVersion).thenReturn(CURRENT_LOG_VERSION);
when(_fs.fileExists(any(typeof(File)))).thenReturn(true);
when(_fs.open(any(typeof(File)), eq(OpenMode.READ))).thenReturn(newStoreChannel);
when(newStoreChannel.read(ArgumentMatchers.any <ByteBuffer>())).then(invocationOnMock =>
{
ByteBuffer buffer = invocationOnMock.getArgument(0);
buffer.putLong(encodeLogVersion(_version + 1));
buffer.putLong(42);
return(LOG_HEADER_SIZE);
});
// when
//JAVA TO C# CONVERTER WARNING: The original Java variable was marked 'final':
//ORIGINAL LINE: final org.neo4j.kernel.impl.transaction.log.LogVersionedStoreChannel result = bridge.next(channel);
LogVersionedStoreChannel result = bridge.Next(_channel);
// then
PhysicalLogVersionedStoreChannel expected = new PhysicalLogVersionedStoreChannel(newStoreChannel, _version + 1, CURRENT_LOG_VERSION);
assertEquals(expected, result);
verify(_channel, times(1)).close();
}
/// <summary>
/// Opens a file in given {@code fileSystem} as a <seealso cref="LogVersionedStoreChannel"/>.
/// </summary>
/// <param name="fileSystem"> <seealso cref="FileSystemAbstraction"/> containing the file to open. </param>
/// <param name="file"> file to open as a channel. </param>
/// <returns> <seealso cref="LogVersionedStoreChannel"/> for the file. Its version is determined by its log header. </returns>
/// <exception cref="IOException"> on I/O error. </exception>
//JAVA TO C# CONVERTER WARNING: Method 'throws' clauses are not available in C#:
//ORIGINAL LINE: public static org.neo4j.kernel.impl.transaction.log.PhysicalLogVersionedStoreChannel openVersionedChannel(org.neo4j.io.fs.FileSystemAbstraction fileSystem, java.io.File file) throws java.io.IOException
public static PhysicalLogVersionedStoreChannel OpenVersionedChannel(FileSystemAbstraction fileSystem, File file)
{
StoreChannel fileChannel = fileSystem.Open(file, OpenMode.READ);
LogHeader logHeader = readLogHeader(ByteBuffer.allocate(LOG_HEADER_SIZE), fileChannel, true, file);
PhysicalLogVersionedStoreChannel channel = new PhysicalLogVersionedStoreChannel(fileChannel, logHeader.LogVersion, logHeader.LogFormatVersion);
return(channel);
}
//JAVA TO C# CONVERTER TODO TASK: Most Java annotations will not have direct .NET equivalent attributes:
//ORIGINAL LINE: @Test public void shouldReadFromSingleChannel() throws Exception
//JAVA TO C# CONVERTER WARNING: Method 'throws' clauses are not available in C#:
public virtual void ShouldReadFromSingleChannel()
{
// GIVEN
File file = file(0);
//JAVA TO C# CONVERTER WARNING: The original Java variable was marked 'final':
//ORIGINAL LINE: final byte byteValue = (byte) 5;
sbyte byteValue = ( sbyte )5;
//JAVA TO C# CONVERTER WARNING: The original Java variable was marked 'final':
//ORIGINAL LINE: final short shortValue = (short) 56;
short shortValue = ( short )56;
const int intValue = 32145;
const long longValue = 5689456895869L;
const float floatValue = 12.12345f;
const double doubleValue = 3548.45748D;
//JAVA TO C# CONVERTER WARNING: The original Java variable was marked 'final':
//ORIGINAL LINE: final byte[] byteArrayValue = new byte[] {1, 2, 3, 4, 5, 6, 7, 8, 9};
sbyte[] byteArrayValue = new sbyte[] { 1, 2, 3, 4, 5, 6, 7, 8, 9 };
WriteSomeData(file, element =>
{
element.put(byteValue);
element.putShort(shortValue);
element.putInt(intValue);
element.putLong(longValue);
element.putFloat(floatValue);
element.putDouble(doubleValue);
element.put(byteArrayValue);
return(true);
});
StoreChannel storeChannel = FileSystemRule.get().open(file, OpenMode.READ);
PhysicalLogVersionedStoreChannel versionedStoreChannel = new PhysicalLogVersionedStoreChannel(storeChannel, -1, ( sbyte )-1);
using (ReadAheadLogChannel channel = new ReadAheadLogChannel(versionedStoreChannel, NO_MORE_CHANNELS, 16))
{
// THEN
assertEquals(byteValue, channel.Get());
assertEquals(shortValue, channel.Short);
assertEquals(intValue, channel.Int);
assertEquals(longValue, channel.Long);
assertEquals(floatValue, channel.Float, 0.1f);
assertEquals(doubleValue, channel.Double, 0.1d);
sbyte[] bytes = new sbyte[byteArrayValue.Length];
channel.Get(bytes, byteArrayValue.Length);
assertArrayEquals(byteArrayValue, bytes);
}
}
//JAVA TO C# CONVERTER WARNING: Method 'throws' clauses are not available in C#:
//ORIGINAL LINE: static void filterTransactionLogFile(org.neo4j.io.fs.FileSystemAbstraction fileSystem, java.io.File file, final LogHook<org.neo4j.kernel.impl.transaction.log.entry.LogEntry> filter) throws java.io.IOException
//JAVA TO C# CONVERTER WARNING: 'final' parameters are ignored unless the option to convert to C# 7.2 'in' parameters is selected:
internal static void FilterTransactionLogFile(FileSystemAbstraction fileSystem, File file, LogHook <LogEntry> filter)
{
filter.File(file);
using (StoreChannel @in = fileSystem.Open(file, OpenMode.READ))
{
LogHeader logHeader = readLogHeader(ByteBuffer.allocate(LOG_HEADER_SIZE), @in, true, file);
PhysicalLogVersionedStoreChannel inChannel = new PhysicalLogVersionedStoreChannel(@in, logHeader.LogVersion, logHeader.LogFormatVersion);
ReadableLogChannel inBuffer = new ReadAheadLogChannel(inChannel);
LogEntryReader <ReadableLogChannel> entryReader = new VersionAwareLogEntryReader <ReadableLogChannel>();
LogEntry entry;
while ((entry = entryReader.ReadLogEntry(inBuffer)) != null)
{
filter.test(entry);
}
}
}
