/// <summary>
/// Initializes a new instance of the <see cref="TemplateEngineLanguageGenerator"/> class.
/// </summary>
/// <param name="lgText">lg template text.</param>
/// <param name="id">optional label for the source of the templates (used for labeling source of template errors).</param>
/// <param name="resourceMapping">template resource loader delegate (locale) -> <see cref="ImportResolverDelegate"/>.</param>
public TemplateEngineLanguageGenerator(string lgText, string id, Dictionary <string, IList <IResource> > resourceMapping)
{
this.Id = id ?? DEFAULTLABEL;
var(_, locale) = LGResourceLoader.ParseLGFileName(id);
var importResolver = LanguageGeneratorManager.ResourceExplorerResolver(locale, resourceMapping);
this.lg = LanguageGeneration.Templates.ParseText(lgText ?? string.Empty, Id, importResolver);
}
public TemplateEngineLanguageGenerator(string lgText, string id, Dictionary <string, IList <Resource> > resourceMapping)
{
Id = id ?? DEFAULTLABEL;
var(_, locale) = LGResourceLoader.ParseLGFileName(id);
var importResolver = LanguageGeneratorManager.ResourceExplorerResolver(locale, resourceMapping);
var lgResource = new LGResource(Id, Id, lgText ?? string.Empty);
_lg = new Lazy <Task <LanguageGeneration.Templates> >(() => Task.FromResult(LanguageGeneration.Templates.ParseResource(lgResource, importResolver)));
}
/// <summary>
/// Initializes a new instance of the <see cref="TemplateEngineLanguageGenerator"/> class.
/// </summary>
/// <param name="filePath">lg template file absolute path.</param>
/// <param name="resourceMapping">template resource loader delegate (locale) -> <see cref="ImportResolverDelegate"/>.</param>
public TemplateEngineLanguageGenerator(string filePath, Dictionary <string, IList <IResource> > resourceMapping)
{
filePath = PathUtils.NormalizePath(filePath);
this.Id = Path.GetFileName(filePath);
var(_, locale) = LGResourceLoader.ParseLGFileName(Id);
var importResolver = LanguageGeneratorManager.ResourceExplorerResolver(locale, resourceMapping);
this.lg = LanguageGeneration.Templates.ParseFile(filePath, importResolver);
}
/// <summary>
/// Initializes a new instance of the <see cref="LanguageGeneratorManager"/> class.
/// </summary>
/// <param name="resourceExplorer">resourceExplorer to manage LG files from.</param>
public LanguageGeneratorManager(ResourceExplorer resourceExplorer)
{
_resourceExplorer = resourceExplorer ?? throw new ArgumentNullException(nameof(resourceExplorer));
_multilanguageResources = LGResourceLoader.GroupByLocale(resourceExplorer);
PopulateLanguageGenerators();
// listen for resource changes
_resourceExplorer.Changed += ResourceExplorer_Changed;
}
/// <summary>
/// Initializes a new instance of the <see cref="TemplateEngineLanguageGenerator"/> class.
/// </summary>
/// <param name="resource">Resource.</param>
/// <param name="resourceMapping">template resource loader delegate (locale) -> <see cref="ImportResolverDelegate"/>.</param>
public TemplateEngineLanguageGenerator(Resource resource, Dictionary <string, IList <Resource> > resourceMapping)
{
this.Id = resource.Id;
var(_, locale) = LGResourceLoader.ParseLGFileName(Id);
var importResolver = LanguageGeneratorManager.ResourceExplorerResolver(locale, resourceMapping);
var content = resource.ReadTextAsync().GetAwaiter().GetResult();
var lgResource = new LGResource(Id, resource.FullName, content);
this.lg = LanguageGeneration.Templates.ParseResource(lgResource, importResolver);
}
public TemplateEngineLanguageGenerator(string filePath, Dictionary <string, IList <Resource> > resourceMapping)
{
filePath = PathUtils.NormalizePath(filePath);
Id = Path.GetFileName(filePath);
var(_, locale) = LGResourceLoader.ParseLGFileName(Id);
var importResolver = LanguageGeneratorManager.ResourceExplorerResolver(locale, resourceMapping);
var resource = new LGResource(Id, filePath, File.ReadAllText(filePath));
_lg = new Lazy <Task <LanguageGeneration.Templates> >(() => Task.FromResult(LanguageGeneration.Templates.ParseResource(resource, importResolver)));
}
/// <summary>
/// Loads language generation templates asynchronously.
/// </summary>
/// <param name="resource">Resource.</param>
/// <param name="resourceMapping">template resource loader delegate (locale) -> <see cref="ImportResolverDelegate"/>.</param>
/// <returns>The loaded language generation templates.</returns>
private async Task <LanguageGeneration.Templates> CreateTemplatesAsync(Resource resource, Dictionary <string, IList <Resource> > resourceMapping)
{
var(_, locale) = LGResourceLoader.ParseLGFileName(Id);
var importResolver = LanguageGeneratorManager.ResourceExplorerResolver(locale, resourceMapping);
var content = await resource.ReadTextAsync().ConfigureAwait(false);
var lgResource = new LGResource(Id, resource.FullName, content);
var lg = LanguageGeneration.Templates.ParseResource(lgResource, importResolver);
RegisterSourcemap(lg, resource);
return(lg);
}
/// <summary>
/// Initializes a new instance of the <see cref="LanguageGeneratorManager"/> class.
/// </summary>
/// <param name="resourceExplorer">resourceExplorer to manage LG files from.</param>
public LanguageGeneratorManager(ResourceExplorer resourceExplorer)
{
this.resourceExplorer = resourceExplorer;
multilanguageResources = LGResourceLoader.GroupByLocale(resourceExplorer);
// load all LG resources
foreach (var resource in this.resourceExplorer.GetResources("lg"))
{
LanguageGenerators[resource.Id] = GetTemplateEngineLanguageGenerator(resource);
}
// listen for resource changes
this.resourceExplorer.Changed += ResourceExplorer_Changed;
}
/// <summary>
/// Returns the resolver to resolve LG import id to template text based on language and a template resource loader delegate.
/// </summary>
/// <param name="locale">Locale to identify language.</param>
/// <param name="resourceMapping">Template resource loader delegate.</param>
/// <returns>The delegate to resolve the resource.</returns>
public static ImportResolverDelegate ResourceExplorerResolver(string locale, Dictionary <string, IList <Resource> > resourceMapping)
{
return((LGResource lgResource, string id) =>
{
var fallbackLocale = LGResourceLoader.FallbackLocale(locale, resourceMapping.Keys.ToList());
var resources = resourceMapping[fallbackLocale];
var resourceName = Path.GetFileName(PathUtils.NormalizePath(id));
var resource = resources.FirstOrDefault(u => LGResourceLoader.ParseLGFileName(u.Id).prefix.ToLowerInvariant() == LGResourceLoader.ParseLGFileName(resourceName).prefix.ToLowerInvariant());
if (resource == null)
{
throw new InvalidOperationException($"There is no matching LG resource for {resourceName}");
}
var content = resource.ReadTextAsync().GetAwaiter().GetResult();
return new LGResource(resource.Id, resource.FullName, content);
});
}
