protected virtual void SerializeModel(object model, Stream stream)
{
using (var sw = new StreamWriter(stream, Encoding.UTF8, 0x100, true))
using (var lease = _serializerPool.Rent())
{
lease.Resource.Serialize(sw, model);
}
}
/// <summary>
/// Transform from view model to the final result using template
/// Supported template languages are mustache and liquid
/// </summary>
/// <param name="model">The input view model</param>
/// <returns>The output after applying template</returns>
public string Transform(object model)
{
if (_rendererPool == null || model == null)
{
return(null);
}
using (var lease = _rendererPool.Rent())
{
return(lease.Resource.Render(model));
}
}
public object GetOptions(object model)
{
if (!ContainsGetOptions)
{
return(null);
}
using var lease = _preprocessorPool.Rent();
try
{
return(lease.Resource.GetOptions(model));
}
catch (Exception e)
{
throw new InvalidPreprocessorException($"Error running GetOptions function inside template preprocessor: {e.Message}");
}
}
public string Render(object model)
{
if (model == null)
{
return(null);
}
using var lease = _rendererPool.Rent();
return(lease.Resource?.Render(model));
}
private object ProcessWithJint(object model, object attrs, object global)
{
var argument1 = JintProcessorHelper.ConvertStrongTypeToJsValue(model);
var argument2 = JintProcessorHelper.ConvertStrongTypeToJsValue(attrs);
var argument3 = JintProcessorHelper.ConvertStrongTypeToJsValue(global);
using (var lease = _enginePool.Rent())
{
return(lease.Resource.Invoke("transform", argument1, argument2, argument3).ToObject());
}
}
public RendererWithResourcePool(Func <ITemplateRenderer> creater, int maxParallelism)
{
_rendererPool = ResourcePool.Create(creater, maxParallelism);
using var lease = _rendererPool.Rent();
var inner = lease.Resource;
Raw = inner.Raw;
Dependencies = inner.Dependencies;
Path = inner.Path;
Name = inner.Name;
}
public Template(string name, DocumentBuildContext context, TemplateRendererResource templateResource, TemplatePreprocessorResource scriptResource, ResourceCollection resourceCollection, int maxParallelism)
{
if (string.IsNullOrEmpty(name))
{
throw new ArgumentNullException(nameof(name));
}
Name = name;
var templateInfo = GetTemplateInfo(Name);
Extension = templateInfo.Extension;
Type = templateInfo.DocumentType;
TemplateType = templateInfo.TemplateType;
_script = scriptResource?.Content;
if (!string.IsNullOrWhiteSpace(_script))
{
ScriptName = Name + ".js";
_preprocessorPool = ResourcePool.Create(() => CreatePreprocessor(resourceCollection, scriptResource, context), maxParallelism);
try
{
using (var preprocessor = _preprocessorPool.Rent())
{
ContainsGetOptions = preprocessor.Resource.GetOptionsFunc != null;
ContainsModelTransformation = preprocessor.Resource.TransformModelFunc != null;
}
}
catch (Exception e)
{
_preprocessorPool = null;
Logger.LogWarning($"{ScriptName} is not a valid template preprocessor, ignored: {e.Message}");
}
}
if (!string.IsNullOrEmpty(templateResource?.Content) && resourceCollection != null)
{
_rendererPool = ResourcePool.Create(() => CreateRenderer(resourceCollection, templateResource), maxParallelism);
ContainsTemplateRenderer = true;
}
if (!ContainsGetOptions && !ContainsModelTransformation && !ContainsTemplateRenderer)
{
Logger.LogWarning($"Template {name} contains neither preprocessor to process model nor template to render model. Please check if the template is correctly defined. Allowed preprocessor functions are [exports.getOptions] and [exports.transform].");
}
Resources = ExtractDependentResources(Name);
}
public Template(string name, DocumentBuildContext context, TemplateRendererResource templateResource, TemplatePreprocessorResource scriptResource, ResourceCollection resourceCollection, int maxParallelism)
{
if (string.IsNullOrEmpty(name))
{
throw new ArgumentNullException(nameof(name));
}
Name = name;
var templateInfo = GetTemplateInfo(Name);
Extension = templateInfo.Extension;
Type = templateInfo.DocumentType;
TemplateType = templateInfo.TemplateType;
_script = scriptResource?.Content;
if (!string.IsNullOrWhiteSpace(_script))
{
ScriptName = Name + ".js";
_preprocessorPool = ResourcePool.Create(() => CreatePreprocessor(resourceCollection, scriptResource, context), maxParallelism);
try
{
using (var preprocessor = _preprocessorPool.Rent())
{
ContainsGetOptions = preprocessor.Resource.GetOptionsFunc != null;
ContainsModelTransformation = preprocessor.Resource.TransformModelFunc != null;
}
}
catch (Exception e)
{
_preprocessorPool = null;
Logger.LogWarning($"{ScriptName} is not a valid template preprocessor, ignored: {e.Message}");
}
}
if (!string.IsNullOrEmpty(templateResource?.Content) && resourceCollection != null)
{
_rendererPool = ResourcePool.Create(() => CreateRenderer(resourceCollection, templateResource), maxParallelism);
ContainsTemplateRenderer = true;
}
if (!ContainsGetOptions && !ContainsModelTransformation && !ContainsTemplateRenderer)
{
Logger.LogWarning($"Template {name} contains neither preprocessor to process model nor template to render model. Please check if the template is correctly defined. Allowed preprocessor functions are [exports.getOptions] and [exports.transform].");
}
Resources = ExtractDependentResources(Name);
}
public PreprocessorWithResourcePool(Func <ITemplatePreprocessor> creater, int maxParallelism)
{
_preprocessorPool = ResourcePool.Create(creater, maxParallelism);
try
{
using (var preprocessor = _preprocessorPool.Rent())
{
var inner = preprocessor.Resource;
ContainsGetOptions = inner.ContainsGetOptions;
ContainsModelTransformation = inner.ContainsModelTransformation;
Path = inner.Path;
Name = inner.Name;
}
}
catch (Exception e)
{
_preprocessorPool = null;
Logger.LogWarning($"Not a valid template preprocessor, ignored: {e.Message}");
}
}