private static ILogBuffer Listen(ILogSource logSource)
{
var data = new LogBufferList(logSource.Columns);
var listener = new Mock <ILogSourceListener>();
listener.Setup(x => x.OnLogFileModified(It.IsAny <ILogSource>(), It.IsAny <LogSourceModification>()))
.Callback((ILogSource file, LogSourceModification modification) =>
{
if (modification.IsReset())
{
data.Clear();
}
else if (modification.IsRemoved(out var removedSection))
{
data.RemoveRange((int)removedSection.Index, removedSection.Count);
}
else if (modification.IsAppended(out var appendedSection))
{
var destinationIndex = data.Count;
data.Resize(data.Count + appendedSection.Count);
file.GetEntries(appendedSection, data, destinationIndex);
}
});
logSource.AddListener(listener.Object, TimeSpan.Zero, 1);
return(data);
}
public void TestCopyFromArray_PartiallyFilled()
{
var entries = new LogBufferList(Core.Columns.LogLevel);
entries.Add(new ReadOnlyLogEntry(new Dictionary <IColumnDescriptor, object> {
{ Core.Columns.LogLevel, LevelFlags.Info }
}));
entries.Add(new ReadOnlyLogEntry(new Dictionary <IColumnDescriptor, object> {
{ Core.Columns.LogLevel, LevelFlags.Trace }
}));
var buffer = new LevelFlags[]
{
LevelFlags.All,
LevelFlags.Debug,
LevelFlags.Error,
LevelFlags.Warning
};
entries.Resize(4);
entries.Count.Should().Be(buffer.Length);
entries.CopyFrom(Core.Columns.LogLevel, 0, buffer, 0, buffer.Length);
entries[0].LogLevel.Should().Be(LevelFlags.All, "because the first entry's level should have been overwritten");
entries[1].LogLevel.Should().Be(LevelFlags.Debug, "because the second entry's level should have been overwritten");
entries[2].LogLevel.Should().Be(LevelFlags.Error, "because the third log entry should been added");
entries[3].LogLevel.Should().Be(LevelFlags.Warning, "because the third log entry should been added");
}
public void TestFill_NullColumn()
{
var buffer = new LogBufferList(Core.Columns.LineNumber);
buffer.Resize(10);
new Action(() => buffer.Fill(null, 42, 2, 4)).Should().Throw <ArgumentNullException>();
}
public void TestResizeAddRows()
{
var entries = new LogBufferList(Core.Columns.RawContent);
entries.Add(new ReadOnlyLogEntry(new Dictionary <IColumnDescriptor, object> {
{ Core.Columns.RawContent, "Hello!" }
}));
entries.Resize(3);
entries.Count.Should().Be(3);
entries[0].RawContent.Should().Be("Hello!", "because the content of the first cell should have been left untouched");
entries[1].RawContent.Should().BeNull("because an default value should have been placed in the newly added cell");
entries[2].RawContent.Should().BeNull("because an default value should have been placed in the newly added cell");
}
public void TestFillInvalidLength()
{
var buffer = new LogBufferList(Core.Columns.LineNumber);
buffer.Resize(10);
buffer.Fill(Core.Columns.LineNumber, 42, 0, 10);
new Action(() => buffer.Fill(Core.Columns.LineNumber, 9001, 0, 11))
.Should().Throw <ArgumentException>();
for (int i = 0; i < 10; ++i)
{
buffer[i].LineNumber.Should().Be(42, "because nothing may have been overwritten");
}
}
public void TestResizeRemoveRows()
{
var entries = new LogBufferList(Core.Columns.RawContent);
entries.Add(new ReadOnlyLogEntry(new Dictionary <IColumnDescriptor, object> {
{ Core.Columns.RawContent, "Hello," }
}));
entries.Add(new ReadOnlyLogEntry(new Dictionary <IColumnDescriptor, object> {
{ Core.Columns.RawContent, "World!" }
}));
entries.Resize(1);
entries.Count.Should().Be(1, "because we just removed a cell");
entries[0].RawContent.Should().Be("Hello,", "Because the content of the first cell should been left untouched");
}
public void TestResizeInvalidCount()
{
var entries = new LogBufferList(Core.Columns.RawContent);
entries.Add(new ReadOnlyLogEntry(new Dictionary <IColumnDescriptor, object> {
{ Core.Columns.RawContent, "Hello," }
}));
entries.Add(new ReadOnlyLogEntry(new Dictionary <IColumnDescriptor, object> {
{ Core.Columns.RawContent, "World!" }
}));
new Action(() => entries.Resize(-1)).Should().Throw <ArgumentOutOfRangeException>();
entries.Count.Should().Be(2, "because the list shouldn't have been modified");
entries[0].RawContent.Should().Be("Hello,", "Because the content of the first cell should been left untouched");
entries[1].RawContent.Should().Be("World!", "Because the content of the second cell should been left untouched");
}
public void TestFill()
{
var buffer = new LogBufferList(Core.Columns.LineNumber);
buffer.Resize(10);
buffer.Fill(Core.Columns.LineNumber, 42, 2, 4);
buffer.Fill(Core.Columns.LineNumber, 1337, 7, 2);
buffer[0].LineNumber.Should().Be(Core.Columns.LineNumber.DefaultValue);
buffer[1].LineNumber.Should().Be(Core.Columns.LineNumber.DefaultValue);
buffer[2].LineNumber.Should().Be(42);
buffer[3].LineNumber.Should().Be(42);
buffer[4].LineNumber.Should().Be(42);
buffer[5].LineNumber.Should().Be(42);
buffer[6].LineNumber.Should().Be(Core.Columns.LineNumber.DefaultValue);
buffer[7].LineNumber.Should().Be(1337);
buffer[8].LineNumber.Should().Be(1337);
buffer[9].LineNumber.Should().Be(Core.Columns.LineNumber.DefaultValue);
}
public void TestCopyFromArray_Empty()
{
var entries = new LogBufferList(Core.Columns.LogLevel);
var buffer = new LevelFlags[]
{
LevelFlags.All,
LevelFlags.Debug,
LevelFlags.Error,
LevelFlags.Warning
};
entries.Resize(4);
entries.Count.Should().Be(buffer.Length);
entries.CopyFrom(Core.Columns.LogLevel, 0, buffer, 0, buffer.Length);
entries[0].LogLevel.Should().Be(LevelFlags.All);
entries[1].LogLevel.Should().Be(LevelFlags.Debug);
entries[2].LogLevel.Should().Be(LevelFlags.Error);
entries[3].LogLevel.Should().Be(LevelFlags.Warning);
}
public void TestContainsAny()
{
var buffer = new LogBufferList(Core.Columns.LineNumber);
buffer.Resize(3);
buffer[0].LineNumber = 1;
buffer[1].LineNumber = 2;
buffer[2].LineNumber = 3;
buffer.ContainsAny(Core.Columns.LineNumber, 1, new Int32Range(0, 1)).Should().BeTrue();
buffer.ContainsAny(Core.Columns.LineNumber, 1, new Int32Range(0, 2)).Should().BeTrue();
buffer.ContainsAny(Core.Columns.LineNumber, 1, new Int32Range(0, 3)).Should().BeTrue();
buffer.ContainsAny(Core.Columns.LineNumber, 1, new Int32Range(1, 1)).Should().BeFalse();
buffer.ContainsAny(Core.Columns.LineNumber, 1, new Int32Range(1, 2)).Should().BeFalse();
buffer.ContainsAny(Core.Columns.LineNumber, 1, new Int32Range(2, 1)).Should().BeFalse();
buffer.ContainsAny(Core.Columns.LineNumber, 2, new Int32Range(0, 3)).Should().BeTrue();
buffer.ContainsAny(Core.Columns.LineNumber, 2, new Int32Range(0, 1)).Should().BeFalse();
buffer.ContainsAny(Core.Columns.LineNumber, 2, new Int32Range(2, 1)).Should().BeFalse();
}
public void UpdateVisibleLines()
{
_visibleTextLines.Clear();
if (_logSource == null)
{
return;
}
try
{
_visibleBufferBuffer.Clear();
_visibleBufferBuffer.Resize(_currentlyVisibleSection.Count);
if (_currentlyVisibleSection.Count > 0)
{
// We don't want to block the UI thread for very long at all so we instruct the log source to only
// fetch data from the cache, but to fetch missing data for later (from the source).
var queryOptions = new LogSourceQueryOptions(LogSourceQueryMode.FromCache | LogSourceQueryMode.FetchForLater, TimeSpan.Zero);
_logSource.GetEntries(_currentlyVisibleSection, _visibleBufferBuffer, 0, queryOptions);
// Now comes the fun part. We need to detect if we could fetch *all* the data.
// This is done by inspecting the BufferedLogSource.RetrievalState - if we encounter any NotCached value,
// then the entry is part of the source, but was not cached at the time of trying to access it.
// If that's the case, we will instruct this canvas to re-fetch the once more in a bit. This loop will terminate once the
// cache has managed to fetch the desired data which should happen some time...
if (_visibleBufferBuffer.ContainsAny(PageBufferedLogSource.RetrievalState,
RetrievalState.NotCached,
new Int32Range(offset: 0, _currentlyVisibleSection.Count)))
{
if (!_requiresFurtherUpdate)
{
Log.DebugFormat("Requires further update (at least one entry is not in cache)");
_requiresFurtherUpdate = true;
_updateStart = DateTime.Now;
}
}
else
{
if (_requiresFurtherUpdate)
{
var elapsed = DateTime.Now - _updateStart;
Log.DebugFormat("No longer requires further update (all retrieved log entries are in cache), took {0:F1}ms", elapsed.TotalMilliseconds);
_requiresFurtherUpdate = false;
}
}
for (int i = 0; i < _currentlyVisibleSection.Count; ++i)
{
var line = new TextLine(_visibleBufferBuffer[i], _hoveredIndices, _selectedIndices,
_colorByLevel, _textSettings, _textBrushes)
{
IsFocused = IsFocused,
SearchResults = _searchResults
};
_visibleTextLines.Add(line);
}
}
Action fn = VisibleLinesChanged;
fn?.Invoke();
InvalidateVisual();
}
catch (ArgumentOutOfRangeException e)
{
Log.DebugFormat("Caught exception while trying to update text: {0}", e);
}
catch (IndexOutOfRangeException e)
{
Log.DebugFormat("Caught exception while trying to update text: {0}", e);
}
}