/// <summary>
/// Resolve <paramref name="line"/> into <see cref="LineResourceStream"/>.
/// If Stream (<see cref="LineResourceStream.Value"/>) is provided, then the caller is responsible for disposing it.
///
/// Applies contextual information, such as culture, from the executing context.
///
/// Status codes:
/// <list type="bullet">
/// <item><see cref="LineStatus.ResolveOkFromAsset"/>Resource was acquired</item>
/// <item><see cref="LineStatus.ResolveOkFromInline"/>Resource was acquired</item>
/// <item><see cref="LineStatus.ResolveOkFromLine"/>Resource was acquired</item>
/// <item><see cref="LineStatus.ResolveFailedNoValue"/>If resource could not be found</item>
/// <item><see cref="LineStatus.ResolveFailedNoResult"/>Request was not processed</item>
/// <item><see cref="LineStatus.ResolveFailedException"/>Unexpected exception was thrown, <see cref="LineResourceStream.Exception"/></item>
/// <item><see cref="LineStatus.ResolveFailedNoResourceResolver"/>Resolver was not found.</item>
/// </list>
/// </summary>
/// <param name="line"></param>
/// <returns>result status</returns>
public static LineResourceStream ResolveStream(this ILine line)
{
LineResourceStream result = new LineResourceStream(line, (Exception)null, LineStatus.ResolveFailedNoResourceResolver);
for (ILine k = line; k != null; k = k.GetPreviousPart())
{
IResourceResolver resolver;
if (k is ILineResourceResolver resolverAssigned && ((resolver = resolverAssigned.ResourceResolver) != null))
{
LineResourceStream str = resolver.ResolveStream(line);
// Return an open stream
if (str.Value != null)
{
return(str);
}
// Got better code, move on
if (str.Severity <= result.Severity)
{
result = str;
}
}
}
return(result);
}
/// <summary>
/// Log resource resolve
/// </summary>
/// <param name="value"></param>
public void OnNext(LineResourceStream value)
{
// Get reference
var _logger = Logger(value.Line);
// Is disposed?
if (_logger == null)
{
return;
}
// Get severity
LineStatusSeverity severity = value.Severity;
// Write status
if (_logger.IsEnabled(LogLevel.Trace) && severity == LineStatusSeverity.Ok)
{
_logger.LogInformation(value.Exception, value.DebugInfo); return;
}
if (_logger.IsEnabled(LogLevel.Warning) && severity == LineStatusSeverity.Warning)
{
_logger.LogWarning(value.Exception, value.DebugInfo); return;
}
if (_logger.IsEnabled(LogLevel.Error) && severity >= LineStatusSeverity.Error)
{
_logger.LogError(value.Exception, value.DebugInfo); return;
}
}
/// <summary>
/// Log stream resolve
/// </summary>
/// <param name="value"></param>
public void OnNext(LineResourceStream value)
{
// Get reference
var _logger = logger;
// Is disposed?
if (_logger == null)
{
return;
}
// Get severity
LineStatusSeverity severity = value.Severity;
// Severity under threshold?
if (severity < this.severity)
{
return;
}
// Write status
if (value.Exception == null)
{
_logger.WriteLine(value.DebugInfo);
}
else
{
_logger.WriteLine("{0} {1}: {2}", value.DebugInfo, value.Exception.GetType().Name, value.Exception.Message);
}
}
/// <summary>
/// Log resource resolve
/// </summary>
/// <param name="value"></param>
public void OnNext(LineResourceStream value)
{
// Get reference
var _logger = Logger(value.Line);
// Is disposed?
if (_logger == null)
{
return;
}
// Get severity
LineStatusSeverity severity = value.Severity;
// Write status
if (severity == LineStatusSeverity.Ok && _logger.IsInfoEnabled)
{
_logger.Info(value.Exception, value.DebugInfo); return;
}
if (severity == LineStatusSeverity.Warning && _logger.IsWarnEnabled)
{
_logger.Warn(value.Exception, value.DebugInfo); return;
}
if (severity >= LineStatusSeverity.Error && _logger.IsErrorEnabled)
{
_logger.Error(value.Exception, value.DebugInfo); return;
}
}
/// <summary>
/// Try to open a stream to a resource by matching <paramref name="key"/> to the asset's resources.
/// If Stream (<see cref="LineResourceStream.Value"/>) is provided, then the caller is responsible for disposing it.
///
/// Does not apply contextual information from the executing context. (See <see cref="ILineExtensions.ResolveStream(ILine)"/> to match in context.)
///
/// Status codes:
/// <list type="bullet">
/// <item><see cref="LineStatus.ResolveOkFromAsset"/>Resource was acquired</item>
/// <item><see cref="LineStatus.ResolveOkFromInline"/>Resource was acquired</item>
/// <item><see cref="LineStatus.ResolveOkFromLine"/>Resource was acquired</item>
/// <item><see cref="LineStatus.ResolveFailedNoValue"/>If resource could not be found</item>
/// <item><see cref="LineStatus.ResolveFailedNoResult"/>Request was not processed</item>
/// <item><see cref="LineStatus.ResolveFailedException"/>Unexpected exception was thrown, <see cref="LineResourceStream.Exception"/></item>
/// </list>
/// </summary>
/// <param name="asset"></param>
/// <param name="key"></param>
/// <returns>result info</returns>
public static LineResourceStream GetResourceStream(this IAsset asset, ILine key)
{
if (asset is IResourceAsset casted)
{
LineResourceStream data = casted.GetResourceStream(key);
if (data.Value != null)
{
return(data);
}
}
if (asset is IAssetComposition composition)
{
foreach (IResourceAsset component in composition.GetComponents <IResourceAsset>(true) ?? Enumerable.Empty <IResourceAsset>())
{
LineResourceStream data = component.GetResourceStream(key);
if (data.Value != null)
{
return(data);
}
}
foreach (IAssetProvider component in composition.GetComponents <IAssetProvider>(true) ?? Enumerable.Empty <IAssetProvider>())
{
IEnumerable <IAsset> assets = component.LoadAssets(key);
if (assets != null)
{
foreach (IAsset loaded_asset in assets)
{
LineResourceStream data = loaded_asset.GetResourceStream(key);
if (data.Value != null)
{
return(data);
}
}
}
}
}
if (asset is IAssetProvider provider)
{
IEnumerable <IAsset> assets = provider.LoadAssets(key);
if (assets != null)
{
foreach (IAsset loaded_asset in assets)
{
LineResourceStream data = loaded_asset.GetResourceStream(key);
if (data.Value != null)
{
return(data);
}
}
}
}
// No result
return(new LineResourceStream(key, (Exception)null, LineStatus.ResolveFailedNoResult));
}
/// <summary>
/// Log resource resolve
/// </summary>
/// <param name="value"></param>
public void OnNext(LineResourceStream value)
{
if (disposed)
{
return;
}
// Get severity
LineStatusSeverity severity = value.Severity;
// Threshold
if (severity < this.severity)
{
return;
}
// Write status
if (value.Exception == null)
{
// No exception
switch (severity)
{
case LineStatusSeverity.Ok:
Trace.TraceInformation(value.DebugInfo);
return;
case LineStatusSeverity.Warning:
Trace.TraceWarning(value.DebugInfo);
return;
case LineStatusSeverity.Error:
case LineStatusSeverity.Failed:
Trace.TraceError(value.DebugInfo);
return;
}
}
else
{
// With exception
switch (severity)
{
case LineStatusSeverity.Ok:
Trace.TraceInformation("{0} {1}: {2}", value.DebugInfo, value.Exception.GetType().Name, value.Exception);
return;
case LineStatusSeverity.Warning:
Trace.TraceWarning("{0} {1}: {2}", value.DebugInfo, value.Exception.GetType().Name, value.Exception);
return;
case LineStatusSeverity.Error:
case LineStatusSeverity.Failed:
Trace.TraceError("{0} {1}: {2}", value.DebugInfo, value.Exception.GetType().Name, value.Exception);
return;
}
}
}
public static void Main(string[] args)
{
// 1. Line
{
#region Snippet_1a
ILine key = LineRoot.Global.PluralRules("Unicode.CLDR35").Key("Key").Format("Hello, {0}");
#endregion Snippet_1a
}
{
#region Snippet_1b
ILineRoot root = new LineRoot();
ILine hint1 = root.PluralRules("Unicode.CLDR35");
ILine section1 = hint1.Section("Section2");
ILine section1_1 = hint1.Section("Section1.1");
ILine key1_1_1 = section1_1.Key("Key1");
ILine key1_1_2 = section1_1.Key("Key2");
ILine value1_1_1 = key1_1_1.Format("Hello, {0}");
// ...
#endregion Snippet_1b
}
// 2. Parts
{
#region Snippet_2a
IAsset resourceAsset = new ResourceDictionary(new Dictionary <ILine, byte[]>());
ILine line = LineRoot.Global.Asset(resourceAsset);
#endregion Snippet_2a
}
{
#region Snippet_2b
ILine line = LineRoot.Global.Logger(Console.Out, LineStatusSeverity.Ok);
#endregion Snippet_2b
}
{
#region Snippet_2c
ICulturePolicy culturePolicy = new CulturePolicy().SetToCurrentCulture();
ILine line = LineRoot.Global.CulturePolicy(culturePolicy);
#endregion Snippet_2c
}
{
#region Snippet_2d
#endregion Snippet_2d
}
{
#region Snippet_2e
#endregion Snippet_2e
}
{
#region Snippet_2f
#endregion Snippet_2f
}
{
#region Snippet_2g
#endregion Snippet_2g
}
{
#region Snippet_2h
#endregion Snippet_2h
}
// 3. Hints
{
#region Snippet_3_
IAsset asset = LineReaderMap.Default.FileAsset("ILine\\Hints.ini");
ILineRoot root = new LineRoot(asset);
Console.WriteLine(root.Key("Error").Value(DateTime.Now));
Console.WriteLine(root.Key("Ok"));
#endregion Snippet_3_
}
{
#region Snippet_3a
ILine line1 = LineRoot.Global.StringFormat(TextFormat.Default).String("Text");
ILine line2 = LineRoot.Global.StringFormat("Lexical.Localization.StringFormat.TextFormat,Lexical.Localization")
.String("Text");
#endregion Snippet_3a
Console.WriteLine(line2);
}
{
#region Snippet_3b
IPluralRules pluralRules = PluralRulesResolver.Default.Resolve("Unicode.CLDR35");
ILine line1 = LineRoot.Global.PluralRules(pluralRules);
ILine line2 = LineRoot.Global.PluralRules("Unicode.CLDR35");
ILine line3 = LineRoot.Global.PluralRules("[Category=cardinal,Case=one]n=1[Category=cardinal,Case=other]true");
#endregion Snippet_3b
Console.WriteLine(line2);
}
{
#region Snippet_3c
IFormatProvider customFormat = new CustomFormat();
ILine line1 = LineRoot.Global.FormatProvider(customFormat).Format("{0:DATE}").Value(DateTime.Now);
ILine line2 = LineRoot.Global.FormatProvider("docs.CustomFormat,docs").Format("{0:DATE}").Value(DateTime.Now);
#endregion Snippet_3c
Console.WriteLine(line1);
Console.WriteLine(line2);
}
{
#region Snippet_3e
ResolveSource[] resolveSequence =
new ResolveSource[] { ResolveSource.Inline, ResolveSource.Asset, ResolveSource.Line };
IStringResolver stringResolver = new StringResolver(Resolvers.Default, resolveSequence);
ILine line = LineRoot.Global.StringResolver(stringResolver);
#endregion Snippet_3e
Console.WriteLine(line);
}
{
#region Snippet_3f
ILine line = LineRoot.Global.StringResolver("Lexical.Localization.StringFormat.StringResolver");
#endregion Snippet_3f
Console.WriteLine(line);
}
{
#region Snippet_3g
ResolveSource[] resolveSequence =
new ResolveSource[] { ResolveSource.Inline, ResolveSource.Asset, ResolveSource.Line };
IResourceResolver resourceResolver = new ResourceResolver(Resolvers.Default, resolveSequence);
ILine line = LineRoot.Global.ResourceResolver(resourceResolver);
#endregion Snippet_3g
Console.WriteLine(line);
}
{
#region Snippet_3h
ILine line = LineRoot.Global.ResourceResolver("Lexical.Localization.Resource.ResourceResolver");
#endregion Snippet_3h
Console.WriteLine(line);
}
// 4. Keys
{
#region Snippet_4a
#endregion Snippet_4a
}
{
#region Snippet_4b
#endregion Snippet_4b
}
{
#region Snippet_4c
#endregion Snippet_4c
}
{
#region Snippet_4d
#endregion Snippet_4d
}
{
#region Snippet_4e
#endregion Snippet_4e
}
{
#region Snippet_4f
#endregion Snippet_4f
}
{
#region Snippet_4g
#endregion Snippet_4g
}
{
#region Snippet_4h
#endregion Snippet_4h
}
// 5. Non-canonicals
{
#region Snippet_5a
Assembly asm = typeof(ILine_Examples).Assembly;
ILine line1 = LineRoot.Global.Assembly(asm);
ILine line2 = LineRoot.Global.Assembly("docs");
#endregion Snippet_5a
}
{
#region Snippet_5b
CultureInfo culture = CultureInfo.GetCultureInfo("en");
ILine line1 = LineRoot.Global.Culture(culture);
ILine line2 = LineRoot.Global.Culture("en");
#endregion Snippet_5b
}
{
#region Snippet_5c
ILine line1 = LineRoot.Global.Type <ILine_Examples>();
ILine line2 = LineRoot.Global.Type(typeof(ILine_Examples));
#endregion Snippet_5c
}
{
#region Snippet_5d
#endregion Snippet_5d
}
{
#region Snippet_5e
#endregion Snippet_5e
}
{
#region Snippet_5f
#endregion Snippet_5f
}
{
#region Snippet_5g
#endregion Snippet_5g
}
{
#region Snippet_5h
#endregion Snippet_5h
}
// 6. Canonicals
{
#region Snippet_6a
ILine line = LineRoot.Global.Key("Ok");
#endregion Snippet_6a
}
{
#region Snippet_6b
ILine line = LineRoot.Global.Section("Resources").Key("Ok");
#endregion Snippet_6b
}
{
#region Snippet_6c
ILine line = LineRoot.Global.Location(@"c:\dir");
#endregion Snippet_6c
}
{
#region Snippet_6d
ILine line = LineRoot.Global.BaseName("docs.Resources");
#endregion Snippet_6d
}
{
#region Snippet_6e
#endregion Snippet_6e
}
{
#region Snippet_6f
#endregion Snippet_6f
}
{
#region Snippet_6g
#endregion Snippet_6g
}
{
#region Snippet_6h
#endregion Snippet_6h
}
// 7. Strings
{
#region Snippet_7a
IString str = CSharpFormat.Default.Parse("ErrorCode = 0x{0:X8}");
ILine line = LineRoot.Global.Key("Error").String(str);
#endregion Snippet_7a
}
{
#region Snippet_7b
ILine line = LineRoot.Global.Key("Error").StringFormat(CSharpFormat.Default).String("ErrorCode = 0x{0:X8}");
#endregion Snippet_7b
}
{
#region Snippet_7c
ILine line = LineRoot.Global.Key("Error").Format("ErrorCode = 0x{0:X8}");
#endregion Snippet_7c
}
{
#region Snippet_7c2
int code = 0x100;
ILine line = LineRoot.Global.Key("Error").Format($"ErrorCode = 0x{code:X8}");
#endregion Snippet_7c2
Console.WriteLine(line);
}
{
#region Snippet_7d
ILine line = LineRoot.Global.Key("Hello").Text("Hello World");
#endregion Snippet_7d
}
{
#region Snippet_7e
ILine line = LineRoot.Global.Section("Section").Key("Success")
.Format("Success") // Add inlining to the root culture ""
.Inline("Culture:en", "Success") // Add inlining to culture "en"
.Inline("Culture:fi", "Onnistui") // Add inlining to culture "fi"
.Inline("Culture:sv", "Det funkar"); // Add inlining to culture "sv"
#endregion Snippet_7e
}
{
#region Snippet_7f
ILine line = LineRoot.Global.Section("Section").Key("Success")
.Format("Success") // Add inlining to the root culture ""
.en("Success") // Add inlining to culture "en"
.fi("Onnistui") // Add inlining to culture "fi"
.sv("Det funkar"); // Add inlining to culture "sv"
#endregion Snippet_7f
}
// Enumerations
{
#region Snippet_7l
ILine carFeature = LineRoot.Global.Assembly("docs").Type <CarFeature>().Format("{0}");
#endregion Snippet_7l
}
{
#region Snippet_7l2
ILine carFeature = LineRoot.Global.Assembly("docs").Type <CarFeature>().InlineEnum <CarFeature>().Format("{0}");
#endregion Snippet_7l2
}
{
#region Snippet_7l3
IAssetSource assetSource = LineReaderMap.Default.FileAssetSource(@"ILine\CarFeature.ini");
LineRoot.Builder.AddSource(assetSource).Build();
#endregion Snippet_7l3
}
{
#region Snippet_7m
ILine carFeature = LineRoot.Global.Assembly("docs").Type <CarFeature>()
.InlineEnum <CarFeature>()
.InlineEnum(CarFeature.Electric, "fi", "Sähkö")
.InlineEnum(CarFeature.Petrol, "fi", "Bensiini")
.InlineEnum(CarFeature.NaturalGas, "fi", "Maakaasu")
.InlineEnum(CarFeature.TwoDoors, "fi", "Kaksiovinen")
.InlineEnum(CarFeature.FourDoors, "fi", "Neliovinen")
.InlineEnum(CarFeature.FiveDoors, "fi", "Viisiovinen")
.InlineEnum(CarFeature.Red, "fi", "Punainen")
.InlineEnum(CarFeature.Black, "fi", "Musta")
.InlineEnum(CarFeature.White, "fi", "Valkoinen")
.Format("{0}");
#endregion Snippet_7m
CultureInfo.CurrentCulture = CultureInfo.GetCultureInfo("");
#region Snippet_7m2
Console.WriteLine(carFeature.Key(CarFeature.Petrol));
Console.WriteLine(carFeature.Key(CarFeature.Petrol).Culture("fi"));
Console.WriteLine(carFeature.Key(CarFeature.Petrol).Culture("sv"));
#endregion Snippet_7m2
#region Snippet_7m3
CarFeature features = CarFeature.Petrol | CarFeature.FiveDoors | CarFeature.Black;
Console.WriteLine(carFeature.Value(features));
#endregion Snippet_7m3
#region Snippet_7m5
Console.WriteLine(carFeature.Formulate($"{CarFeature.Petrol | CarFeature.Black:|}").Culture("fi"));
Console.WriteLine(carFeature.Formulate($"{CarFeature.Petrol | CarFeature.Black: |}").Culture("fi"));
#endregion Snippet_7m5
}
{
#region Snippet_7m6
ILine carFeature = LineRoot.Global.Assembly("docs").Type <CarFeature>().InlineEnum <CarFeature>()
.InlineEnum(CarFeature.Electric, "de", "Elektroauto")
.InlineEnum(CarFeature.Petrol, "de", "Benzinwagen")
.InlineEnum(CarFeature.NaturalGas, "de", "Erdgasauto")
.InlineEnum(CarFeature.TwoDoors, "de", "Zweitürig")
.InlineEnum(CarFeature.FourDoors, "de", "Viertürig")
.InlineEnum(CarFeature.FiveDoors, "de", "Fünftürige")
.InlineEnum(CarFeature.Red, "de", "Rot")
.InlineEnum(CarFeature.Black, "de", "Schwartz")
.InlineEnum(CarFeature.White, "de", "Weiß")
.Format("{0}");
ILine message = LineRoot.Global.Assembly("docs").Type("MyClass").Key("Msg")
.Format("Your car has following features: {0}")
.de("Ihr Auto hat folgende Eigenschaften: {0}");
Console.WriteLine(message.Value(CarFeature.Petrol | CarFeature.Red | CarFeature.TwoDoors).Culture("fi"));
Console.WriteLine(message.Value(CarFeature.Petrol | CarFeature.Red | CarFeature.TwoDoors).Culture("sv"));
Console.WriteLine(message.Value(CarFeature.Petrol | CarFeature.Red | CarFeature.TwoDoors).Culture("de"));
#endregion Snippet_7m6
}
{
#region Snippet_7m7
ILine carFeature = LineRoot.Global.Assembly("docs").Type <CarFeature>().InlineEnum <CarFeature>()
.InlineEnum(CarFeature.Electric, "de", "Elektroauto")
.InlineEnum(CarFeature.Petrol, "de", "Benzinwagen")
.InlineEnum(CarFeature.NaturalGas, "de", "Erdgasauto")
.InlineEnum(CarFeature.TwoDoors, "de", "Zweitürig")
.InlineEnum(CarFeature.FourDoors, "de", "Viertürig")
.InlineEnum(CarFeature.FiveDoors, "de", "Fünftürige")
.InlineEnum(CarFeature.Red, "de", "Rot")
.InlineEnum(CarFeature.Black, "de", "Schwartz")
.InlineEnum(CarFeature.White, "de", "Weiß")
.Format("{0}");
ILine message = LineRoot.Global.Assembly("docs").Type("MyClass").Key("Msg")
.Format("Your car has following features: {0}")
.de("Ihr Auto hat folgende Eigenschaften: {0}");
CarFeature features = CarFeature.Petrol | CarFeature.Red | CarFeature.TwoDoors;
// Inlined enum strings don't work as Enum (unless tool is used)
Console.WriteLine(message.Value(features).Culture("de"));
// But works when ILine reference is used.
Console.WriteLine(message.Value(carFeature.Value(features)).Culture("de"));
#endregion Snippet_7m7
}
{
ILine carFeature = LineRoot.Global.Assembly("docs").Type <CarFeature>().InlineEnum <CarFeature>();
CarFeature features = CarFeature.Petrol | CarFeature.FiveDoors | CarFeature.Black;
Console.WriteLine(carFeature.Formulate($"{features:g}").Culture("fi"));
Console.WriteLine(carFeature.Formulate($"{features:G}").Culture("fi"));
Console.WriteLine(carFeature.Formulate($"{features:f}").Culture("fi"));
Console.WriteLine(carFeature.Formulate($"{features:F}").Culture("fi"));
Console.WriteLine(carFeature.Formulate($"{features:d}").Culture("fi"));
Console.WriteLine(carFeature.Formulate($"{features:D}").Culture("fi"));
Console.WriteLine(carFeature.Formulate($"{features:x}").Culture("fi"));
Console.WriteLine(carFeature.Formulate($"{features:X}").Culture("fi"));
}
// 8. Values
{
#region Snippet_8a
ILine line = LineRoot.Global.Key("Error").Format("ErrorCode={0}").Value(0x100);
LineString result = line.ResolveString();
#endregion Snippet_8a
}
{
#region Snippet_8b
#endregion Snippet_8b
}
{
#region Snippet_8c
#endregion Snippet_8c
}
{
#region Snippet_8d
#endregion Snippet_8d
}
{
#region Snippet_8e
#endregion Snippet_8e
}
{
#region Snippet_8f
#endregion Snippet_8f
}
{
#region Snippet_8g
#endregion Snippet_8g
}
{
#region Snippet_8h
#endregion Snippet_8h
}
// 10. Resources
{
#region Snippet_10a
ILine line = LineRoot.Global.Key("Error").Resource(new byte[] { 1, 2, 3 });
LineResourceBytes result = line.ResolveBytes();
#endregion Snippet_10a
}
{
#region Snippet_10b
ILine line = LineRoot.Global.Key("Error").Resource(new byte[] { 1, 2, 3 });
using (LineResourceStream result = line.ResolveStream())
{
}
#endregion Snippet_10b
}
{
#region Snippet_10c
#endregion Snippet_10c
}
{
#region Snippet_10d
#endregion Snippet_10d
}
{
#region Snippet_10e
#endregion Snippet_10e
}
{
#region Snippet_10f
#endregion Snippet_10f
}
{
#region Snippet_10g
#endregion Snippet_10g
}
{
#region Snippet_10h
#endregion Snippet_10h
}
}
/// <summary>
/// Open stream
/// </summary>
/// <param name="key"></param>
/// <returns></returns>
public LineResourceStream GetResourceStream(ILine key)
{
Cache _cache = this.cache;
// Try to read previously cached value
LineResourceBytes value = default;
_cache.m_lock.EnterReadLock();
try
{
if (_cache.data.TryGetValue(key, out value))
{
if (value.Value != null)
{
return(new LineResourceStream(value.Line, value.Value == null ? null : new MemoryStream(value.Value), value.Exception, value.Status));
}
}
}
finally
{
_cache.m_lock.ExitReadLock();
}
// Open stream
LineResourceStream stream = Source.GetResourceStream(key);
// Store into cache?
if (Options.GetCacheStreams())
{
ILine cacheKey = Options.GetCloneKeys() ? key.CloneKey(LineAppender.NonResolving) : key;
// Cache null value
if (stream.Value == null)
{
_cache.m_lock.EnterWriteLock();
try
{
_cache.data[cacheKey] = new LineResourceBytes(value.Line, value.Exception, value.Status);
return(stream);
}
finally
{
_cache.m_lock.ExitWriteLock();
}
}
// Read stream completely and then cache it
long position = -1;
int ix = 0;
try
{
// Try to read stream length, if fails, throws an exception
long len = stream.Value.Length;
if (len < Options.GetMaxResourceSize())
{
// Try to read position.
position = stream.Value.Position;
// Try to read stream completely.
int len_ = (int)len;
byte[] data = new byte[len];
// Read chunks
while (ix < len_)
{
int count = stream.Value.Read(data, ix, len_ - ix);
//
// "returns zero (0) if the end of the stream has been reached."
//
if (count == 0)
{
break;
}
ix += count;
}
// Write data to cache
if (ix == len_)
{
_cache.m_lock.EnterWriteLock();
try
{
_cache.data[cacheKey] = new LineResourceBytes(value.Line, data, value.Status);
// Wrap to new stream.
return(new LineResourceStream(value.Line, new MemoryStream(data), value.Status));
}
finally
{
_cache.m_lock.ExitWriteLock();
}
}
else
{
// Reading completely failed, revert position
stream.Value.Position = position;
ix = 0;
}
}
}
catch (Exception)
{
try
{
// Return position.
if (position > 0L)
{
stream.Value.Position = position; ix = 0;
}
}
catch (Exception)
{
// Failed to rewind stream.
}
// Stream has not been rewound. Let's open it again.
if (ix > 0)
{
stream.Value.Dispose();
return(Source.GetResourceStream(key));
}
}
}
return(new LineResourceStream(key, (Exception)null, LineStatus.ResolveFailedNoResult));
}
