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Move partitioning to message renderer facade

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This commit is contained in:
Alexey Golub 2020-01-11 14:18:04 +02:00
parent bf56902134
commit 5c2e725739
2 changed files with 34 additions and 29 deletions
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47
DiscordChatExporter.Core.Rendering/FacadeMessageRenderer.cs
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@ -10,16 +10,19 @@ namespace DiscordChatExporter.Core.Rendering
private readonly string _baseFilePath;
private readonly ExportFormat _format;
private readonly RenderContext _context;
private readonly int? _partitionLimit;
private long _renderedMessageCount;
private int _partitionIndex;
private TextWriter _writer;
private IMessageRenderer _innerRenderer;
public FacadeMessageRenderer(string baseFilePath, ExportFormat format, RenderContext context)
public FacadeMessageRenderer(string baseFilePath, ExportFormat format, RenderContext context, int? partitionLimit)
{
_baseFilePath = baseFilePath;
_format = format;
_context = context;
_partitionLimit = partitionLimit;
}
private void EnsureInnerRendererInitialized()
@ -35,7 +38,7 @@ namespace DiscordChatExporter.Core.Rendering
if (!string.IsNullOrWhiteSpace(dirPath))
Directory.CreateDirectory(dirPath);
// Create writer (will be disposed by renderer)
// Create writer
_writer = File.CreateText(filePath);
// Create inner renderer
@ -61,31 +64,41 @@ namespace DiscordChatExporter.Core.Rendering
}
}
public async Task NextPartitionAsync()
private async Task ResetInnerRendererAsync()
{
// Dispose writer and inner renderer
await DisposeAsync();
_writer = null;
_innerRenderer = null;
if (_innerRenderer != null)
{
await _innerRenderer.DisposeAsync();
_innerRenderer = null;
}
// Increment partition index
_partitionIndex++;
if (_writer != null)
{
await _writer.DisposeAsync();
_writer = null;
}
}
public async Task RenderMessageAsync(Message message)
{
// Ensure underlying writer and renderer are initialized
EnsureInnerRendererInitialized();
// Render the actual message
await _innerRenderer.RenderMessageAsync(message);
// Increment count
_renderedMessageCount++;
// Update partition if necessary
if (_partitionLimit != null && _partitionLimit != 0 && _renderedMessageCount % _partitionLimit == 0)
{
await ResetInnerRendererAsync();
_partitionIndex++;
}
}
public async ValueTask DisposeAsync()
{
if (_innerRenderer != null)
await _innerRenderer.DisposeAsync();
if (_writer != null)
await _writer.DisposeAsync();
}
public async ValueTask DisposeAsync() => await ResetInnerRendererAsync();
}
public partial class FacadeMessageRenderer