public TemplatingContext(ObjectCache cache, CompositionContainer container, IFileProvider outputFileProvider, TemplateData data, IEnumerable<IAssetUriResolver> resolvers, IFileProvider templateFileProvider)
{
this.Container = container;
this.OutputFileProvider = outputFileProvider;
this.TemplateData = data;
this.AssetUriResolvers = resolvers.ToArray();
this.TemplateFileProvider = templateFileProvider;
this.Cache = cache;
XPathDocument xpathDoc;
using (var reader = data.Document.CreateReader(ReaderOptions.OmitDuplicateNamespaces))
xpathDoc = new XPathDocument(reader);
this.Document = xpathDoc.CreateNavigator();
this.DocumentIndex = new XPathNavigatorIndex(this.Document.Clone());
}
private IEnumerable<UnitOfWork> DiscoverWork(TemplateData templateData, XPathVariable[] parameters, Resource[] resources)
{
CustomXsltContext xpathContext = CreateCustomXsltContext(templateData.IgnoredVersionComponent);
xpathContext.PushVariableScope(templateData.Document.Root, parameters);
for (int i = 0; i < resources.Length; i++)
{
xpathContext.PushVariableScope(templateData.Document.Root, resources[i].Variables);
if (EvalCondition(xpathContext, templateData.Document.Root, resources[i].ConditionExpression))
{
string expandedSource = EvalValue(xpathContext, templateData.Document.Root, resources[i].Source);
string expandedOutput = EvalValue(xpathContext, templateData.Document.Root, resources[i].Output);
List<IResourceTransform> transforms = new List<IResourceTransform>();
foreach (var resourceTransform in resources[i].Transforms)
{
using (CompositionContainer localContainer = new CompositionContainer(this._container.Catalog))
{
string dirName = Path.GetDirectoryName(expandedSource);
CompositionBatch batch = new CompositionBatch();
var exportMetadata = new Dictionary<string, object>();
exportMetadata.Add(CompositionConstants.ExportTypeIdentityMetadataName,
AttributedModelServices.GetTypeIdentity(typeof(IFileProvider)));
exportMetadata.Add(CompositionConstants.PartCreationPolicyMetadataName,
CreationPolicy.Shared);
batch.AddExport(new Export(ContractNames.ResourceFileProvider,
exportMetadata,
() => new ScopedFileProvider(resources[i].FileProvider, dirName)));
// TODO export resourceTransform.Parameters into localContainer using CompositionBatch
localContainer.Compose(batch);
var requiredMetadata = new[]
{
new Tuple<string, object, IEqualityComparer>("Name",
resourceTransform.Name,
StringComparer.OrdinalIgnoreCase)
};
ImportDefinition importDefinition =
new MetadataContractBasedImportDefinition(
typeof(IResourceTransform),
null,
requiredMetadata,
ImportCardinality.ExactlyOne,
false,
true,
CreationPolicy.NonShared);
Export transformExport = localContainer.GetExports(importDefinition).Single();
transforms.Add((IResourceTransform)transformExport.Value);
}
}
yield return
new ResourceDeployment(resources[i].FileProvider,
expandedSource,
expandedOutput, // TODO this needs a 'writable' file provider
transforms.ToArray());
}
xpathContext.PopVariableScope();
}
xpathContext.PopVariableScope();
}
/// <summary>
/// This method will construct a three folder structure inside <paramref name="targetDirectory"/> containing: Html, Index, and Source
/// </summary>
/// <param name="sourceDirectory">
/// Directory containing ldoc files
/// </param>
/// <param name="targetDirectory">
/// Output directory
/// </param>
public void Build(string sourceDirectory, string targetDirectory)
{
if (Directory.Exists(targetDirectory) && Directory.EnumerateFileSystemEntries(targetDirectory).Any())
throw new InvalidOperationException("Target path is not empty.");
this.OnStateChanged(State.Preparing);
string htmlRoot = Path.Combine(targetDirectory, "Html");
string indexRoot = Path.Combine(targetDirectory, "Index");
string sourceRoot = Path.Combine(targetDirectory, "Source");
string logRoot = Path.Combine(targetDirectory, "Logs");
DirectoryInfo htmlDir = Directory.CreateDirectory(htmlRoot);
DirectoryInfo indexDir = Directory.CreateDirectory(indexRoot);
DirectoryInfo sourceDir = Directory.CreateDirectory(sourceRoot);
DirectoryInfo logDir = Directory.CreateDirectory(logRoot);
var sourceFiles = Directory.EnumerateFiles(sourceDirectory, "*.ldoc", SearchOption.TopDirectoryOnly);
// copy all source files to output directory and add to bundle
Bundle bundle = new Bundle(this.IgnoreVersionComponent);
foreach (var sourceFile in sourceFiles)
{
string targetFile = Path.Combine(sourceDir.FullName, Path.GetFileName(sourceFile));
File.Copy(sourceFile, targetFile);
bundle.Add(XDocument.Load(targetFile));
}
TemplateOutput templateOutput;
// wire up logging
string templateLogFile = Path.Combine(logDir.FullName,
string.Format("template_{0:yyyy'_'MM'_'dd'__'HH'_'mm'_'ss}.log", DateTime.Now));
using (TextWriterTraceListener traceListener = new TextWriterTraceListener(templateLogFile))
{
// log everything
traceListener.Filter = new EventTypeFilter(SourceLevels.All);
LostDoc.Diagnostics.TraceSources.TemplateSource.Switch.Level = SourceLevels.All;
LostDoc.Diagnostics.TraceSources.BundleSource.Switch.Level = SourceLevels.All;
LostDoc.Diagnostics.TraceSources.AssetResolverSource.Switch.Level = SourceLevels.All;
LostDoc.Diagnostics.TraceSources.TemplateSource.Listeners.Add(traceListener);
LostDoc.Diagnostics.TraceSources.BundleSource.Listeners.Add(traceListener);
LostDoc.Diagnostics.TraceSources.AssetResolverSource.Listeners.Add(traceListener);
// merge ldoc files
this.OnStateChanged(State.Merging);
AssetRedirectCollection assetRedirects;
var mergedDoc = bundle.Merge(out assetRedirects);
// generate output
var templateData = new TemplateData(mergedDoc)
{
AssetRedirects = assetRedirects,
IgnoredVersionComponent = this.IgnoreVersionComponent,
OutputFileProvider =
new ScopedFileProvider(new DirectoryFileProvider(), htmlDir.FullName),
//TargetDirectory = htmlDir.FullName,
Arguments = new Dictionary<string, object> { { "SearchUri", "/search/" } },
KeepTemporaryFiles = true,
TemporaryFilesPath = Path.Combine(logDir.FullName, "temp")
};
this.OnStateChanged(State.Templating);
templateOutput = this.Template.Generate(templateData);
LostDoc.Diagnostics.TraceSources.TemplateSource.Listeners.Remove(traceListener);
LostDoc.Diagnostics.TraceSources.BundleSource.Listeners.Remove(traceListener);
LostDoc.Diagnostics.TraceSources.AssetResolverSource.Listeners.Remove(traceListener);
}
this.OnStateChanged(State.Indexing);
string indexLogFile = Path.Combine(logDir.FullName,
string.Format("index_{0:yyyy'_'MM'_'dd'__'HH'_'mm'_'ss}.log", DateTime.Now));
using (TextWriterTraceListener traceListener = new TextWriterTraceListener(indexLogFile))
{
// log everything
traceListener.Filter = new EventTypeFilter(SourceLevels.All);
TraceSources.ContentBuilderSource.Switch.Level = SourceLevels.All;
TraceSources.ContentBuilderSource.Listeners.Add(traceListener);
// one stop-word per line
StringReader stopWordsReader = new StringReader(@"missing");
// index output
using (var directory = FSDirectory.Open(indexDir))
using (stopWordsReader)
{
Analyzer analyzer = new StandardAnalyzer(global::Lucene.Net.Util.Version.LUCENE_30, stopWordsReader);
Analyzer titleAnalyzer = new TitleAnalyzer();
IDictionary<string, Analyzer> fieldAnalyzers = new Dictionary<string, Analyzer>
{
{ "title", titleAnalyzer }
};
PerFieldAnalyzerWrapper analyzerWrapper = new PerFieldAnalyzerWrapper(analyzer, fieldAnalyzers);
using (
var writer = new IndexWriter(directory, analyzerWrapper, IndexWriter.MaxFieldLength.UNLIMITED))
{
var saResults =
templateOutput.Results.Select(wur => wur.WorkUnit).OfType<StylesheetApplication>();
var saDict = saResults.ToDictionary(sa => sa.Asset);
var indexResults = saDict.Values.Where(sa => sa.SaveAs.EndsWith(".xml"));
foreach (var sa in indexResults)
{
string absPath = Path.Combine(htmlDir.FullName, sa.SaveAs);
XDocument indexDoc = XDocument.Load(absPath);
string assetId = indexDoc.Root.Attribute("assetId").Value;
string title = indexDoc.Root.Element("title").Value.Trim();
string summary = indexDoc.Root.Element("summary").Value.Trim();
string text = indexDoc.Root.Element("text").Value.Trim();
var ssApplication = saDict[AssetIdentifier.Parse(assetId)];
var doc = new Document();
doc.Add(new Field("uri",
new Uri(ssApplication.SaveAs, UriKind.Relative).ToString(),
Field.Store.YES,
Field.Index.NO));
doc.Add(new Field("aid", ssApplication.Asset, Field.Store.YES, Field.Index.NOT_ANALYZED));
foreach (AssetIdentifier aid in ssApplication.Aliases)
doc.Add(new Field("alias", aid, Field.Store.NO, Field.Index.NOT_ANALYZED));
foreach (var section in ssApplication.Sections)
{
doc.Add(new Field("section",
section.AssetIdentifier,
Field.Store.NO,
Field.Index.NOT_ANALYZED));
}
doc.Add(new Field("title", title, Field.Store.YES, Field.Index.ANALYZED));
doc.Add(new Field("summary", summary, Field.Store.YES, Field.Index.ANALYZED));
doc.Add(new Field("content", text, Field.Store.NO, Field.Index.ANALYZED));
TraceSources.ContentBuilderSource.TraceVerbose("Indexing document: {0}", doc.ToString());
writer.AddDocument(doc);
}
writer.Optimize();
writer.Commit();
}
analyzerWrapper.Close();
analyzer.Close();
}
TraceSources.ContentBuilderSource.Listeners.Remove(traceListener);
}
this.OnStateChanged(State.Finalizing);
var infoDoc = new XDocument(
new XElement("content",
new XAttribute("created",
XmlConvert.ToString(DateTime.UtcNow, XmlDateTimeSerializationMode.Utc)),
templateOutput.Results.Select(this.ConvertToXml)));
infoDoc.Save(Path.Combine(targetDirectory, "info.xml"));
this.OnStateChanged(State.Idle);
}
protected virtual ParsedTemplate PrepareTemplate(TemplateData templateData, Stack<IFileProvider> providers = null)
{
// set up temp file container
TempFileCollection tempFiles = new TempFileCollection(templateData.TemporaryFilesPath,
templateData.KeepTemporaryFiles);
if (!Directory.Exists(tempFiles.TempDir))
Directory.CreateDirectory(tempFiles.TempDir);
if (providers == null)
{
providers = new Stack<IFileProvider>();
providers.Push(new HttpFileProvider());
providers.Push(new DirectoryFileProvider());
}
// clone orig doc
XDocument workingDoc;
// this is required to preserve the line information
using (var xmlReader = this._templateDefinition.CreateReader())
workingDoc = XDocument.Load(xmlReader, LoadOptions.SetLineInfo);
// template inheritence
//XAttribute templateInheritsAttr = workingDoc.Root.Attribute("inherits");
if (this._templateInfo.Inherits != null)
{
int depth = providers.Count + 1;
Template inheritedTemplate = _templateInfo.Inherits.Load(this._container);
ParsedTemplate parsedTemplate = inheritedTemplate.PrepareTemplate(templateData, providers);
providers.Push(inheritedTemplate.GetScopedFileProvider());
// a little hacky but it should work with the Reverse()/AddFirst()
foreach (XElement elem in parsedTemplate.Source.Root.Elements().Reverse())
{
workingDoc.Root.AddFirst(new XElement(elem));
}
// create and register temp file (this can be overriden later if there are meta-template directives
// in the template
this._templateSourcePath = this.SaveTempFile(tempFiles, workingDoc, "inherited." + depth + '.' + _templateInfo.Name);
}
// add our file provider to the top of the stack
providers.Push(this.GetScopedFileProvider());
// create stacked provider
IFileProvider provider = new StackedFileProvider(providers);
// start by loading any parameters as they are needed for meta-template evaluation
CustomXsltContext customContext = CreateCustomXsltContext(templateData.IgnoredVersionComponent);
XElement[] paramNodes = workingDoc.Root.Elements("parameter").ToArray();
List<XPathVariable> globalParams = new List<XPathVariable>();
foreach (XElement paramNode in paramNodes)
{
string name = this.GetAttributeValue(paramNode, "name");
object argValue;
if (templateData.Arguments.TryGetValue(name, out argValue))
globalParams.Add(new ConstantXPathVariable(name, argValue));
else
{
string expr = this.GetAttributeValueOrDefault(paramNode, "select");
globalParams.Add(new ExpressionXPathVariable(name, expr));
}
}
customContext.PushVariableScope(workingDoc, globalParams.ToArray());
var arguments = templateData.Arguments
.Select(argument => new ConstantXPathVariable(argument.Key, argument.Value))
.ToArray();
customContext.PushVariableScope(workingDoc, arguments);
// expand any meta-template directives
workingDoc = ApplyMetaTransforms(workingDoc, customContext, provider, tempFiles);
// there was neither inheretance, nor any meta-template directives
if (this._templateSourcePath == null)
{
// save current template to disk
this._templateSourcePath = this.SaveTempFile(tempFiles, workingDoc);
}
// loading template
List<Stylesheet> stylesheets = new List<Stylesheet>();
List<Resource> resources = new List<Resource>();
List<Index> indices = new List<Index>();
foreach (XElement elem in workingDoc.Root.Elements())
{
// we alread proessed the parameters
if (elem.Name.LocalName == "parameter")
continue;
if (elem.Name.LocalName == "apply-stylesheet")
{
stylesheets.Add(this.ParseStylesheet(provider, stylesheets, elem));
}
else if (elem.Name.LocalName == "index")
{
indices.Add(this.ParseIndexDefinition(elem));
}
else if (elem.Name.LocalName == "include-resource")
{
resources.Add(ParseResouceDefinition(provider, elem));
}
else
{
throw new Exception("Unknown element: " + elem.Name.LocalName);
}
}
return new ParsedTemplate
{
Parameters = globalParams.ToArray(),
Source = workingDoc,
Resources = resources.ToArray(),
Stylesheets = stylesheets.ToArray(),
Indices = indices.ToArray(),
TemporaryFiles = tempFiles,
};
}
/// <summary>
/// Applies the loaded templates to <paramref name="templateData"/>.
/// </summary>
/// <param name="templateData">
/// Instance of <see cref="TemplateData"/> containing the various input data needed.
/// </param>
public virtual TemplateOutput Generate(TemplateData templateData)
{
Stopwatch timer = Stopwatch.StartNew();
this._fileResolver.Clear();
ParsedTemplate tmpl = this.PrepareTemplate(templateData);
// collect all work that has to be done
List<UnitOfWork> work = new List<UnitOfWork>();
// resource work units
work.AddRange(this.DiscoverWork(templateData, tmpl.Parameters, tmpl.Resources));
// stylesheet work units
{
List<StylesheetApplication> stylesheetApplications = new List<StylesheetApplication>();
foreach (Stylesheet stylesheet in tmpl.Stylesheets)
{
stylesheetApplications.AddRange(this.DiscoverWork(templateData, tmpl.Parameters, stylesheet));
}
var duplicates =
stylesheetApplications.GroupBy(sa => sa.SaveAs, StringComparer.OrdinalIgnoreCase)
.Where(g => g.Count() > 1);
foreach (var group in duplicates)
{
TraceSources.TemplateSource.TraceError("Duplicate work unit target ({0}) generated from: {1}",
group.Key,
string.Join(", ",
group.Select(sa => '\'' + sa.StylesheetName + '\'')));
foreach (var workunit in group.Skip(1))
{
stylesheetApplications.Remove(workunit);
}
}
work.AddRange(stylesheetApplications);
}
TraceSources.TemplateSource.TraceInformation("Generating {0:N0} documents from {1:N0} stylesheets.",
work.Count, tmpl.Stylesheets.Length);
ConcurrentBag<WorkUnitResult> results = new ConcurrentBag<WorkUnitResult>();
// create context
ITemplatingContext context = new TemplatingContext(this._cache,
this._container,
templateData.OutputFileProvider, // TODO fix this (this._basePath)
templateData,
this._resolvers,
this._templateInfo.Source);
// fill indices
using (TraceSources.TemplateSource.TraceActivity("Indexing input document"))
{
var customXsltContext = CreateCustomXsltContext(templateData.IgnoredVersionComponent);
foreach (var index in tmpl.Indices)
{
TraceSources.TemplateSource.TraceVerbose("Adding index {0} (match: '{1}', key: '{1}')",
index.Name,
index.MatchExpr,
index.KeyExpr);
context.DocumentIndex.AddKey(index.Name, index.MatchExpr, index.KeyExpr, customXsltContext);
}
TraceSources.TemplateSource.TraceInformation("Indexing...");
context.DocumentIndex.BuildIndexes();
}
int totalCount = work.Count;
long lastProgress = Stopwatch.GetTimestamp();
int processed = 0;
// process all units of work
ParallelOptions parallelOptions = new ParallelOptions
{
//MaxDegreeOfParallelism = 1
};
IEnumerable<UnitOfWork> unitsOfWork = work;
if (templateData.Filter != null)
{
unitsOfWork = unitsOfWork
.Where(uow =>
{
if (templateData.Filter(uow))
return true;
TraceSources.TemplateSource.TraceInformation("Filtered unit of work: [{0}] {1}",
uow.GetType().Name,
uow.ToString());
return false;
});
}
Parallel.ForEach(unitsOfWork,
parallelOptions,
uow =>
{
results.Add(uow.Execute(context));
int c = Interlocked.Increment(ref processed);
long lp = Interlocked.Read(ref lastProgress);
if ((Stopwatch.GetTimestamp() - lp) / (double)Stopwatch.Frequency > 5.0)
{
if (Interlocked.CompareExchange(ref lastProgress,
Stopwatch.GetTimestamp(),
lp) == lp)
{
TraceSources.TemplateSource.TraceInformation(
"Progress: {0:P1} ({1:N0}/{2:N0})",
c / (double)totalCount,
c,
totalCount);
}
}
});
// stop timing
timer.Stop();
Stopwatch statsTimer = new Stopwatch();
// prepare stats
Dictionary<Type, WorkUnitResult[]> resultGroups =
results.GroupBy(ps => ps.WorkUnit.GetType()).ToDictionary(g => g.Key, g => g.ToArray());
var stylesheetStats =
resultGroups[typeof(StylesheetApplication)]
.GroupBy(r => ((StylesheetApplication)r.WorkUnit).StylesheetName);
foreach (var statGroup in stylesheetStats)
{
long min = statGroup.Min(ps => ps.Duration);
long max = statGroup.Max(ps => ps.Duration);
TraceSources.TemplateSource.TraceInformation("Applied stylesheet '{0}' {1:N0} times in {2:N0} ms (min: {3:N0}, mean {4:N0}, max {5:N0}, avg: {6:N0})",
statGroup.Key,
statGroup.Count(),
statGroup.Sum(ps => ps.Duration) / 1000.0,
min / 1000.0,
statGroup.Skip(statGroup.Count() / 2).Take(1).Single().Duration / 1000.0,
max / 1000.0,
statGroup.Average(ps => ps.Duration) / 1000.0);
// TODO this is quick and dirty, should be cleaned up
long[] buckets = new long[20];
int rows = 6;
/*
┌────────────────────┐ ◄ 230
│█ █│
│█ █│
│█ █│
│█ █│
│█ █│
│█__________________█│
└────────────────────┘ ◄ 0
▲ 12ms ▲ 12ms
*/
// this is a little hacky, but it will do for now
WorkUnitResult[] sortedResults = statGroup.OrderBy(r => r.Duration).ToArray();
double bucketSize = (max - min) / (double)buckets.Length;
int bucketNum = 0;
long bucketMax = 0;
foreach (WorkUnitResult result in sortedResults)
{
while ((result.Duration - min) > (bucketNum + 1) * bucketSize)
bucketNum++;
buckets[bucketNum] += 1;
bucketMax = Math.Max(buckets[bucketNum], bucketMax);
}
double rowHeight = bucketMax / (double)rows;
StringBuilder graph = new StringBuilder();
graph.AppendLine("Graph:");
const int gutter = 2;
int columnWidth = graph.Length;
graph.Append('┌').Append('─', buckets.Length).Append('┐').Append('◄').Append(' ').Append(bucketMax.ToString("N0"));
int firstLineLength = graph.Length - columnWidth;
columnWidth = graph.Length - columnWidth + gutter;
StringBuilder lastLine = new StringBuilder();
lastLine.Append('▲').Append(' ').Append((min / 1000.0).ToString("N0")).Append("ms");
lastLine.Append(' ', (buckets.Length + 2) - lastLine.Length - 1);
lastLine.Append('▲').Append(' ').Append((max / 1000.0).ToString("N0")).Append("ms");
columnWidth = Math.Max(columnWidth, lastLine.Length + gutter);
if (columnWidth > firstLineLength)
graph.Append(' ', columnWidth - firstLineLength);
graph.AppendLine("Percentage of the applications processed within a certain time (ms)");
for (int row = 0; row < rows; row++)
{
// │┌┐└┘─
graph.Append('│');
for (int col = 0; col < buckets.Length; col++)
{
if (buckets[col] > (rowHeight * (rows - (row + 1)) + rowHeight / 2.0))
graph.Append('█');
else if (buckets[col] > rowHeight * (rows - (row + 1)))
graph.Append('▄');
else if (row == rows - 1)
graph.Append('_');
else
graph.Append(' ');
}
graph.Append('│');
graph.Append(' ', columnWidth - (buckets.Length + 2));
switch (row)
{
case 0:
graph.Append(" 100% ").Append((max / 1000.0).ToString("N0"));
break;
case 1:
graph.Append(" 95% ").Append((sortedResults[((int)Math.Floor(sortedResults.Length * 0.95))].Duration / 1000.0).ToString("N0"));
break;
case 2:
graph.Append(" 90% ").Append((sortedResults[((int)Math.Floor(sortedResults.Length * .9))].Duration / 1000.0).ToString("N0"));
break;
case 3:
graph.Append(" 80% ").Append((sortedResults[((int)Math.Floor(sortedResults.Length * 0.8))].Duration / 1000.0).ToString("N0"));
break;
case 4:
graph.Append(" 70% ").Append((sortedResults[((int)Math.Floor(sortedResults.Length * 0.7))].Duration / 1000.0).ToString("N0"));
break;
case 5:
graph.Append(" 50% ").Append((sortedResults[((int)Math.Floor(sortedResults.Length * 0.5))].Duration / 1000.0).ToString("N0"));
break;
}
graph.AppendLine();
}
int len = graph.Length;
graph.Append('└').Append('─', buckets.Length).Append('┘').Append('◄').Append(" 0");
len = graph.Length - len;
if (columnWidth > len)
graph.Append(' ', columnWidth - len);
graph.Append(" 10% ").Append((sortedResults[((int)Math.Floor(sortedResults.Length * .1))].Duration / 1000.0).ToString("N0"));
graph.AppendLine();
lastLine.Append(' ', columnWidth - lastLine.Length);
lastLine.Append(" 1% ").Append((sortedResults[((int)Math.Floor(sortedResults.Length * .01))].Duration / 1000.0).ToString("N0"));
graph.Append(lastLine.ToString());
TraceSources.TemplateSource.TraceVerbose(graph.ToString());
}
var resourceStats = resultGroups[typeof(ResourceDeployment)];
foreach (var statGroup in resourceStats)
{
TraceSources.TemplateSource.TraceInformation("Deployed resource '{0}' in {1:N0} ms",
((ResourceDeployment)statGroup.WorkUnit).ResourcePath,
statGroup.Duration);
}
TraceSources.TemplateSource.TraceInformation("Documentation generated in {0:N1} seconds (processing time: {1:N1} seconds)",
timer.Elapsed.TotalSeconds,
results.Sum(ps => ps.Duration) / 1000000.0);
TraceSources.TemplateSource.TraceInformation("Statistics generated in {0:N1} seconds",
statsTimer.Elapsed.TotalSeconds);
return new TemplateOutput(results.ToArray(), tmpl.TemporaryFiles);
}
protected virtual IEnumerable<StylesheetApplication> DiscoverWork(TemplateData templateData, XPathVariable[] parameters, Stylesheet stylesheet)
{
TraceSources.TemplateSource.TraceInformation("Processing stylesheet instructions: {0}",
(object)stylesheet.Name);
CustomXsltContext xpathContext = CreateCustomXsltContext(templateData.IgnoredVersionComponent);
xpathContext.PushVariableScope(templateData.Document.Root, parameters); // 1
XElement[] inputElements =
templateData.Document.XPathSelectElements(stylesheet.SelectExpression, xpathContext).ToArray();
foreach (XElement inputElement in inputElements)
{
xpathContext.PushVariableScope(inputElement, stylesheet.Variables); // 2
string saveAs = ResultToString(inputElement.XPathEvaluate(stylesheet.OutputExpression, xpathContext));
string version = ResultToString(inputElement.XPathEvaluate(stylesheet.VersionExpression, xpathContext));
string assetId = ResultToString(inputElement.XPathEvaluate(stylesheet.AssetIdExpression, xpathContext));
List<AssetIdentifier> aliases = new List<AssetIdentifier>();
List<AssetSection> sections = new List<AssetSection>();
// eval condition, shortcut and log instead of wrapping entire loop in if
if (!EvalCondition(xpathContext, inputElement, stylesheet.ConditionExpression))
{
TraceSources.TemplateSource.TraceVerbose("{0}, {1} => Condition not met", assetId, version);
xpathContext.PopVariableScope(); // 2
continue;
}
Uri newUri = new Uri(saveAs, UriKind.RelativeOrAbsolute);
// register url
this._fileResolver.Add(assetId, new Version(version), ref newUri);
TraceSources.TemplateSource.TraceVerbose("{0}, {1} => {2}", assetId, version, newUri.ToString());
// aliases
foreach (AliasRegistration alias in stylesheet.AssetAliases)
{
XElement[] aliasInputElements =
inputElement.XPathSelectElements(alias.SelectExpression, xpathContext).ToArray();
foreach (XElement aliasInputElement in aliasInputElements)
{
xpathContext.PushVariableScope(aliasInputElement, alias.Variables); // 3
string aliasVersion =
ResultToString(aliasInputElement.XPathEvaluate(alias.VersionExpression, xpathContext));
string aliasAssetId =
ResultToString(aliasInputElement.XPathEvaluate(alias.AssetIdExpression, xpathContext));
// eval condition
if (EvalCondition(xpathContext, aliasInputElement, alias.ConditionExpression))
{
this._fileResolver.Add(aliasAssetId, new Version(aliasVersion), newUri);
aliases.Add(AssetIdentifier.Parse(aliasAssetId));
TraceSources.TemplateSource.TraceVerbose("{0}, {1} (Alias) => {2}", aliasAssetId,
aliasVersion,
newUri.ToString());
}
else
{
TraceSources.TemplateSource.TraceVerbose("{0}, {1} (Alias) => Condition not met",
assetId,
version);
}
xpathContext.PopVariableScope(); // 3
}
}
// sections
foreach (SectionRegistration section in stylesheet.Sections)
{
XElement[] sectionInputElements = inputElement.XPathSelectElements(section.SelectExpression, xpathContext).ToArray();
foreach (XElement sectionInputElement in sectionInputElements)
{
xpathContext.PushVariableScope(sectionInputElement, section.Variables); // 4
string sectionName =
ResultToString(sectionInputElement.XPathEvaluate(section.NameExpression, xpathContext));
string sectionVersion =
ResultToString(sectionInputElement.XPathEvaluate(section.VersionExpression, xpathContext));
string sectionAssetId =
ResultToString(sectionInputElement.XPathEvaluate(section.AssetIdExpression, xpathContext));
// eval condition
if (EvalCondition(xpathContext, sectionInputElement, section.ConditionExpression))
{
Uri sectionUri = new Uri(newUri + "#" + sectionName, UriKind.Relative);
this._fileResolver.Add(sectionAssetId, new Version(sectionVersion), sectionUri);
TraceSources.TemplateSource.TraceVerbose("{0}, {1}, (Section: {2}) => {3}",
sectionAssetId,
sectionVersion,
sectionName,
sectionUri.ToString());
sections.Add(new AssetSection(AssetIdentifier.Parse(sectionAssetId), sectionName, sectionUri));
}
else
{
TraceSources.TemplateSource.TraceVerbose("{0}, {1}, (Section: {2}) => Condition not met",
sectionAssetId,
sectionVersion,
sectionName);
}
xpathContext.PopVariableScope(); // 4
}
}
var xsltParams = ResolveXsltParams(stylesheet.XsltParams, inputElement, xpathContext).ToArray();
xpathContext.PopVariableScope(); // 2
yield return new StylesheetApplication
{
StylesheetName = stylesheet.Name,
Asset = new AssetIdentifier(assetId, new Version(version)),
Aliases = aliases, /* list of AssetIdentifiers */
Sections = sections, /* list of AssetSection */
SaveAs = newUri.ToString(),
Transform = stylesheet.Transform,
InputElement = inputElement,
XsltParams = xsltParams
};
}
xpathContext.PopVariableScope(); // 1
}
public override void Invoke(CompositionContainer container)
{
var traceListener = new ConsolidatedConsoleTraceListener
{
{ TraceSources.TemplateSource, "Template" },
{ TraceSources.BundleSource, "Bundle" },
{ TraceSources.AssetResolverSource, "Resolve" }
};
using (traceListener)
{
this.ConfigureTraceLevels(traceListener);
LinkedList<FileInfo> includedFiles = new LinkedList<FileInfo>();
if (File.Exists(this.Path))
includedFiles.AddLast(new FileInfo(this.Path));
else if (Directory.Exists(this.Path))
{
Directory.GetFiles(this.Path, "*.ldoc", SearchOption.AllDirectories)
.Aggregate(includedFiles, (l, f) => l.AddLast(new FileInfo(f)).List);
}
else
throw new FileNotFoundException(System.IO.Path.GetFullPath(this.Path));
Bundle bundle = new Bundle(this.IgnoreVersionComponent);
TraceSources.TemplateSource.TraceInformation("Merging LostDoc files into bundle.");
foreach (FileInfo file in includedFiles)
{
TraceSources.TemplateSource.TraceEvent(TraceEventType.Information, 0, "Source: {0}", file.Name);
XDocument fileDoc = XDocument.Load(file.FullName);
bundle.Add(fileDoc);
}
var lazyProviders = container.GetExports<IFileProvider>(ContractNames.TemplateProvider);
var realProviders = lazyProviders.Select(lazy => lazy.Value);
TemplateResolver templateResolver = new TemplateResolver(realProviders.ToArray());
TemplateInfo templateInfo = templateResolver.Resolve(this.Template);
Template template = templateInfo.Load(container);
string outputDir = this.Output
?? (Directory.Exists(this.Path)
? this.Path
: System.IO.Path.GetDirectoryName(this.Path));
AssetRedirectCollection assetRedirects;
XDocument mergedDoc = bundle.Merge(out assetRedirects);
var templateData = new TemplateData(mergedDoc)
{
AssetRedirects = assetRedirects,
OverwriteExistingFiles = this.Force.IsPresent,
IgnoredVersionComponent = this.IgnoreVersionComponent,
Arguments = this.Arguments,
OutputFileProvider = new ScopedFileProvider(new DirectoryFileProvider(), outputDir)
};
template.Generate(templateData);
}
}
public void Invoke(CompositionContainer container)
{
var traceListener = new ConsolidatedConsoleTraceListener(
new Dictionary<string, string>
{
{
"LostDoc.Core.Template",
"Template"
},
{
"LostDoc.Core.Bundle",
"Bundle"
},
{
"LostDoc.Core.Template.AssetResolver",
"Resolve"
}
});
TraceSources.TemplateSource.Listeners.Add(traceListener);
TraceSources.AssetResolverSource.Listeners.Add(traceListener);
try
{
if (this.Quiet.IsPresent)
{
const SourceLevels quietLevel = SourceLevels.Error | SourceLevels.Warning | SourceLevels.Critical;
TraceSources.TemplateSource.Switch.Level = quietLevel;
TraceSources.AssetResolverSource.Switch.Level = quietLevel;
TraceSources.BundleSource.Listeners.Add(traceListener);
}
else if (this.Verbose.IsPresent)
{
const SourceLevels verboseLevel = SourceLevels.All;
TraceSources.TemplateSource.Switch.Level = verboseLevel;
TraceSources.AssetResolverSource.Switch.Level = verboseLevel;
TraceSources.BundleSource.Listeners.Add(traceListener);
}
else
{
const SourceLevels normalLevel = SourceLevels.Information | SourceLevels.Warning | SourceLevels.Error | SourceLevels.ActivityTracing;
TraceSources.TemplateSource.Switch.Level = normalLevel;
TraceSources.AssetResolverSource.Switch.Level = normalLevel;
}
LinkedList<FileInfo> includedFiles = new LinkedList<FileInfo>();
if (File.Exists(this.Path))
includedFiles.AddLast(new FileInfo(this.Path));
else if (Directory.Exists(this.Path))
{
Directory.GetFiles(this.Path, "*.ldoc", SearchOption.AllDirectories)
.Aggregate(includedFiles,
(l, f) => l.AddLast(new FileInfo(f)).List);
}
else
throw new FileNotFoundException(System.IO.Path.GetFullPath(this.Path));
Bundle bundle = new Bundle(this.IgnoreVersionComponent);
TraceSources.TemplateSource.TraceInformation("Merging LostDoc files into bundle.");
foreach (FileInfo file in includedFiles)
{
TraceSources.TemplateSource.TraceEvent(TraceEventType.Information, 0, "Source: {0}", file.Name);
XDocument fileDoc = XDocument.Load(file.FullName);
bundle.Add(fileDoc);
}
var lazyProviders = container.GetExports<IFileProvider>(ContractNames.TemplateProvider);
var realProviders = lazyProviders.Select(lazy => lazy.Value);
TemplateResolver templateResolver = new TemplateResolver(realProviders.ToArray());
Template template = new Template(container);
template.Load(templateResolver, this.Template);
string outputDir = this.Output
?? (Directory.Exists(this.Path)
? this.Path
: System.IO.Path.GetDirectoryName(this.Path));
AssetRedirectCollection assetRedirects;
XDocument mergedDoc = bundle.Merge(out assetRedirects);
var templateData = new TemplateData(mergedDoc)
{
AssetRedirects = assetRedirects,
OverwriteExistingFiles = this.Force.IsPresent,
IgnoredVersionComponent = this.IgnoreVersionComponent,
Arguments = this.Arguments,
OutputFileProvider = new ScopedFileProvider(new DirectoryFileProvider(), outputDir)
};
template.Generate(templateData);
}
finally
{
TraceSources.TemplateSource.Listeners.Remove(traceListener);
TraceSources.AssetResolverSource.Listeners.Remove(traceListener);
}
}
private IEnumerable<UnitOfWork> DiscoverWork(TemplateData templateData, XPathVariable[] parameters, Resource[] resources)
{
CustomXsltContext xpathContext = CreateCustomXsltContext(templateData.IgnoredVersionComponent);
xpathContext.PushVariableScope(templateData.Document.Root, parameters);
for (int i = 0; i < resources.Length; i++)
{
xpathContext.PushVariableScope(templateData.Document.Root, resources[i].Variables);
if (EvalCondition(xpathContext, templateData.Document.Root, resources[i].ConditionExpression))
{
List<IResourceTransform> transforms = new List<IResourceTransform>();
foreach (var resourceTransform in resources[i].Transforms)
{
CompositionContainer paramContainer = new CompositionContainer(this._container);
// TODO export resourceTransform.Parameters into paramContainer
ImportDefinition importDefinition =
new MetadataContractBasedImportDefinition(
typeof(IResourceTransform),
null,
new[] {new Tuple<string, object, IEqualityComparer>("Name", resourceTransform.Name, StringComparer.OrdinalIgnoreCase) },
ImportCardinality.ExactlyOne,
false,
false,
CreationPolicy.NonShared);
Export transformExport = paramContainer.GetExports(importDefinition).Single();
transforms.Add((IResourceTransform)transformExport.Value);
}
yield return
new ResourceDeployment(resources[i].FileProvider,
resources[i].Source,
resources[i].Output, // TODO this needs a 'writable' file provider
transforms.ToArray());
}
xpathContext.PopVariableScope();
}
xpathContext.PopVariableScope();
}
public TemplatingContext(ObjectCache cache, CompositionContainer container, IFileProvider outputFileProvider, TemplateData data, IEnumerable <IAssetUriResolver> resolvers, IFileProvider templateFileProvider)
{
this.Container = container;
this.OutputFileProvider = outputFileProvider;
this.TemplateData = data;
this.AssetUriResolvers = resolvers.ToArray();
this.TemplateFileProvider = templateFileProvider;
this.Cache = cache;
XPathDocument xpathDoc;
using (var reader = data.Document.CreateReader(ReaderOptions.OmitDuplicateNamespaces))
xpathDoc = new XPathDocument(reader);
this.Document = xpathDoc.CreateNavigator();
this.DocumentIndex = new XPathNavigatorIndex(this.Document.Clone());
}
