public ConfigPreprocessorEnvironment(Uri input_file_path, PreprocessorUrlResolver resolver)
{
// Bottom-most stack frame
_env_stack.Push(new ConstantDict());
// Record the input file as the outer-most "include"
_include_stack.Push(input_file_path);
_fileset[input_file_path.LocalPath] = true;
_resolver = resolver;
}
public ConfigPreprocessorEnvironment( Uri input_file_path, PreprocessorUrlResolver resolver )
{
// Bottom-most stack frame
_env_stack.Push( new ConstantDict() );
// Record the input file as the outer-most "include"
_include_stack.Push( input_file_path );
_fileset[ input_file_path.LocalPath ] = true;
_resolver = resolver;
}
/// <summary>
/// Run the given input reader through the preprocessor, writing it
/// to the given output writer.
/// </summary>
/// <param name="input"></param>
/// <param name="output"></param>
/// <returns></returns>
/// <param name="resolver"></param>
/// <param name="input_uri"></param>
/// <exception cref="EvaluationException">Error occurred during the evaluation of a constant</exception>
public ConfigPreprocessorEnvironment PreProcess(XmlReader input,
XmlWriter output,
PreprocessorUrlResolver resolver,
Uri input_uri
)
{
XsltSettings xslt_settings = new XsltSettings(true, true);
#if DEBUG
XslCompiledTransform xslt_preprocess = new XslCompiledTransform(true);
#else
XslCompiledTransform xslt_preprocess = new XslCompiledTransform( false );
#endif
using (XmlReader xslt_reader = XmlReader.Create(Utils.GetAssemblyResourceStream(
"ThoughtWorks.CruiseControl.Core.configuration.preprocessor.ConfigPreprocessor.xslt")))
{
xslt_preprocess.Load(
xslt_reader, xslt_settings, new XmlUrlResolver());
}
// Install a special XmlResolver for the resolution of
// preprocessor includes (which use the xslt document() function).
// The resolver keeps track of the URI path of the outermost document and any includes
// and uses it to resolve relative include paths.
if ( resolver == null )
{
resolver = new PreprocessorUrlResolver();
}
XsltArgumentList xslt_args = new XsltArgumentList();
Uri base_uri = input_uri ??
( String.IsNullOrEmpty( input.BaseURI )
? new Uri(
Path.Combine(
programDataFolder,
"nofile.xml" ) )
: new Uri( input.BaseURI ) );
_current_env = new ConfigPreprocessorEnvironment( base_uri, resolver );
// The XSLT calls extension functions in _current_env.
xslt_args.AddExtensionObject("environment", _current_env);
try
{
xslt_preprocess.Transform( input, xslt_args, output, null );
}
catch( XsltException ex )
{
if ( ex.InnerException != null )
{
// Get the _remoteStackTraceString of the Exception class
FieldInfo remoteStackTraceString = typeof(Exception).GetField("_remoteStackTraceString",
BindingFlags.Instance | BindingFlags.NonPublic );
// TODO: Remove this workaround after Mono Bug 425512 is resolved (CCNET-1244)
if (remoteStackTraceString == null)
remoteStackTraceString = typeof(Exception).GetField("remote_stack_trace",
BindingFlags.Instance | BindingFlags.NonPublic);
// Set the InnerException._remoteStackTraceString to the current InnerException.StackTrace
remoteStackTraceString.SetValue( ex.InnerException,
ex.InnerException.StackTrace + Environment.NewLine );
// Throw the new exception
throw ex.InnerException;
}
throw;
}
// Notify listeners of all files encountered.
if ( SubfileLoaded != null )
{
foreach ( string path in _current_env.Fileset )
{
SubfileLoaded( path );
}
}
return _current_env;
}