public LexFormatScanners Compile(
string segmentScannerCode,
string recordScannerCode,
Stream saveAssemblyTo = null)
{
segmentScannerCode = Trim(segmentScannerCode);
recordScannerCode = Trim(recordScannerCode);
var result = new LexFormatScanners();
this.Diagnostics.WriteLine("Compiling segments scanner");
var name = string.Format("LexFileFormat-{0}", Guid.NewGuid().ToString("N"));
var segmentsSyntaxTree = this.CreateSyntaxTree(
new StringBuilder()
.AppendFormat("%using {0};\n", typeof (ScanBase).Namespace).AppendLine()
.AppendLine("%namespace LogWatch.Features.Formats.Lex.Segments")
.AppendLine("%{")
.AppendLine(BufferWithEncodingAndByteCounterCode)
.AppendLine(SegmentsScannerClassCode)
.AppendLine(CommonScannerClassCode)
.AppendLine("%}")
.AppendLine()
.AppendLine(segmentScannerCode)
.ToString());
if (segmentsSyntaxTree == null)
return result;
this.Diagnostics.WriteLine("Compiling records scanner");
var recordsSyntaxTree = this.CreateSyntaxTree(
new StringBuilder()
.AppendFormat("%using {0};\n", typeof (ScanBase).Namespace)
.AppendLine("%namespace LogWatch.Features.Formats.Lex.Records")
.AppendLine("%{")
.AppendLine(RecordsScannerClassCode)
.AppendLine(CommonScannerClassCode)
.AppendLine("%}")
.AppendLine(recordScannerCode)
.ToString());
if (recordsSyntaxTree == null)
return result;
this.Diagnostics.WriteLine("Creating assembly");
var compilation = this.CreateCompilation(name, segmentsSyntaxTree, recordsSyntaxTree);
var assembly = AppDomain.CurrentDomain.DefineDynamicAssembly(
new AssemblyName(name), AssemblyBuilderAccess.RunAndCollect);
var module = assembly.DefineDynamicModule(name);
var emitResult = compilation.Emit(module);
foreach (var diagnostic in emitResult.Diagnostics)
this.Diagnostics.WriteLine(diagnostic);
if (!emitResult.Success)
return result;
if (saveAssemblyTo != null)
compilation.Emit(saveAssemblyTo);
return new LexFormatScanners {
SegmentsScannerType = assembly.GetType(SegmentsScannerTypeName),
RecordsScannerType = assembly.GetType(RecordsScannerTypeName),
Success = true
};
}
public LexFormatScanners Compile(
string segmentScannerCode,
string recordScannerCode,
Stream saveAssemblyTo = null)
{
segmentScannerCode = Trim(segmentScannerCode);
recordScannerCode = Trim(recordScannerCode);
var result = new LexFormatScanners();
this.Diagnostics.WriteLine("Compiling segments scanner");
var name = string.Format("LexFileFormat-{0}", Guid.NewGuid().ToString("N"));
var segmentsSyntaxTree = this.CreateSyntaxTree(
new StringBuilder()
.AppendFormat("%using {0};\n", typeof(ScanBase).Namespace).AppendLine()
.AppendLine("%namespace LogWatch.Features.Formats.Lex.Segments")
.AppendLine("%{")
.AppendLine(BufferWithEncodingAndByteCounterCode)
.AppendLine(SegmentsScannerClassCode)
.AppendLine(CommonScannerClassCode)
.AppendLine("%}")
.AppendLine()
.AppendLine(segmentScannerCode)
.ToString());
if (segmentsSyntaxTree == null)
{
return(result);
}
this.Diagnostics.WriteLine("Compiling records scanner");
var recordsSyntaxTree = this.CreateSyntaxTree(
new StringBuilder()
.AppendFormat("%using {0};\n", typeof(ScanBase).Namespace)
.AppendLine("%namespace LogWatch.Features.Formats.Lex.Records")
.AppendLine("%{")
.AppendLine(RecordsScannerClassCode)
.AppendLine(CommonScannerClassCode)
.AppendLine("%}")
.AppendLine(recordScannerCode)
.ToString());
if (recordsSyntaxTree == null)
{
return(result);
}
this.Diagnostics.WriteLine("Creating assembly");
var compilation = this.CreateCompilation(name, segmentsSyntaxTree, recordsSyntaxTree);
var assembly = AppDomain.CurrentDomain.DefineDynamicAssembly(
new AssemblyName(name), AssemblyBuilderAccess.RunAndCollect);
var module = assembly.DefineDynamicModule(name);
var emitResult = compilation.Emit(module);
foreach (var diagnostic in emitResult.Diagnostics)
{
this.Diagnostics.WriteLine(diagnostic);
}
if (!emitResult.Success)
{
return(result);
}
if (saveAssemblyTo != null)
{
compilation.Emit(saveAssemblyTo);
}
return(new LexFormatScanners {
SegmentsScannerType = assembly.GetType(SegmentsScannerTypeName),
RecordsScannerType = assembly.GetType(RecordsScannerTypeName),
Success = true
});
}
