/
ServicesCollectionExtensions.cs
265 lines (238 loc) · 11.3 KB
/
ServicesCollectionExtensions.cs
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using System;
using System.Collections.Generic;
using System.IO;
using System.Linq;
using Examine.Lucene;
using Examine.Lucene.Directories;
using Examine.Lucene.Providers;
using Lucene.Net.Analysis;
using Lucene.Net.Facet;
using Microsoft.Extensions.DependencyInjection;
using Microsoft.Extensions.DependencyInjection.Extensions;
using Microsoft.Extensions.Options;
namespace Examine
{
/// <summary>
/// Extensions for <see cref="IServiceCollection"/>
/// </summary>
public static class ServicesCollectionExtensions
{
/// <summary>
/// Registers a file system based Lucene Examine index
/// </summary>
[Obsolete("To remove in Examine V5")]
public static IServiceCollection AddExamineLuceneIndex(
this IServiceCollection serviceCollection,
string name,
FieldDefinitionCollection? fieldDefinitions = null,
Analyzer? analyzer = null,
IValueSetValidator? validator = null,
IReadOnlyDictionary<string, IFieldValueTypeFactory>? indexValueTypesFactory = null)
=> serviceCollection.AddExamineLuceneIndex<LuceneIndex>(name, fieldDefinitions, analyzer, validator, indexValueTypesFactory);
/// <summary>
/// Registers a file system based Lucene Examine index
/// </summary>
[Obsolete("To remove in Examine V5")]
public static IServiceCollection AddExamineLuceneIndex<TIndex>(
this IServiceCollection serviceCollection,
string name,
FieldDefinitionCollection? fieldDefinitions = null,
Analyzer? analyzer = null,
IValueSetValidator? validator = null,
IReadOnlyDictionary<string, IFieldValueTypeFactory>? indexValueTypesFactory = null)
where TIndex : LuceneIndex
{
Action<ExamineLuceneIndexConfiguration<TIndex, FileSystemDirectoryFactory>> config = opt =>
{
opt.FieldDefinitions = fieldDefinitions;
opt.Analyzer = analyzer;
opt.UseTaxonomyIndex = false;
opt.FacetsConfig = null;
opt.IndexValueTypesFactory = indexValueTypesFactory;
opt.Validator = validator;
};
return serviceCollection.AddExamineLuceneIndex<TIndex, FileSystemDirectoryFactory>(name, config);
}
/// <summary>
/// Registers an Examine index
/// </summary>
[Obsolete("To remove in Examine V5")]
public static IServiceCollection AddExamineLuceneIndex<TIndex, TDirectoryFactory>(
this IServiceCollection serviceCollection,
string name,
FieldDefinitionCollection? fieldDefinitions = null,
Analyzer? analyzer = null,
IValueSetValidator? validator = null,
IReadOnlyDictionary<string, IFieldValueTypeFactory>? indexValueTypesFactory = null)
where TIndex : LuceneIndex
where TDirectoryFactory : class, IDirectoryFactory
{
Action<ExamineLuceneIndexConfiguration<TIndex, TDirectoryFactory>> config = opt =>
{
opt.FieldDefinitions = fieldDefinitions;
opt.Analyzer = analyzer;
opt.UseTaxonomyIndex = false;
opt.FacetsConfig = null;
opt.IndexValueTypesFactory = indexValueTypesFactory;
opt.Validator = validator;
};
return serviceCollection.AddExamineLuceneIndex<TIndex, TDirectoryFactory>(name, config);
}
/// <summary>
/// Registers an Examine index
/// </summary>
public static IServiceCollection AddExamineLuceneIndex<TIndex, TDirectoryFactory>(
this IServiceCollection serviceCollection,
string name,
Action<ExamineLuceneIndexConfiguration<TIndex, TDirectoryFactory>> configuration)
where TIndex : LuceneIndex
where TDirectoryFactory : class, IDirectoryFactory
{
var config = new ExamineLuceneIndexConfiguration<TIndex, TDirectoryFactory>(name);
configuration.Invoke(config);
// This is the long way to add IOptions but gives us access to the
// services collection which we need to get the dir factory
serviceCollection.AddSingleton<IConfigureOptions<LuceneDirectoryIndexOptions>>(
services => new ConfigureNamedOptions<LuceneDirectoryIndexOptions>(
name,
(options) =>
{
options.Analyzer = config.Analyzer;
options.Validator = config.Validator;
options.IndexValueTypesFactory = config.IndexValueTypesFactory;
options.FieldDefinitions = config.FieldDefinitions ?? options.FieldDefinitions;
options.DirectoryFactory = services.GetRequiredService<TDirectoryFactory>();
options.FacetsConfig = config.FacetsConfig ?? new FacetsConfig();
options.UseTaxonomyIndex = config.UseTaxonomyIndex;
}));
return serviceCollection.AddSingleton<IIndex>(services =>
{
var options
= services.GetRequiredService<IOptionsMonitor<LuceneDirectoryIndexOptions>>();
var index = ActivatorUtilities.CreateInstance<TIndex>(
services,
new object[] { name, options });
return index;
});
}
/// <summary>
/// Registers a file system based Lucene Examine index
/// </summary>
public static IServiceCollection AddExamineLuceneIndex(
this IServiceCollection serviceCollection,
string name,
Action<ExamineLuceneIndexConfiguration<LuceneIndex, FileSystemDirectoryFactory>> configuration) => serviceCollection.AddExamineLuceneIndex<LuceneIndex, FileSystemDirectoryFactory>(name, configuration);
/// <summary>
/// Registers a file system based Lucene Examine index
/// </summary>
public static IServiceCollection AddExamineLuceneIndex<TIndex>(
this IServiceCollection serviceCollection,
string name,
Action<ExamineLuceneIndexConfiguration<TIndex, FileSystemDirectoryFactory>> configuration)
where TIndex : LuceneIndex => serviceCollection.AddExamineLuceneIndex<TIndex, FileSystemDirectoryFactory>(name, configuration);
/// <summary>
/// Registers a standalone Examine searcher
/// </summary>
/// <typeparam name="TSearcher"></typeparam>
/// <param name="serviceCollection"></param>
/// <param name="name"></param>
/// <param name="parameterFactory">
/// A factory to fullfill the custom searcher construction parameters excluding the name that are not already registerd in DI.
/// </param>
/// <returns></returns>
public static IServiceCollection AddExamineSearcher<TSearcher>(
this IServiceCollection serviceCollection,
string name,
Func<IServiceProvider, IList<object>> parameterFactory)
where TSearcher : ISearcher
=> serviceCollection.AddTransient<ISearcher>(services =>
{
var parameters = parameterFactory(services);
parameters.Insert(0, name);
var searcher = ActivatorUtilities.CreateInstance<TSearcher>(
services,
parameters.ToArray());
return searcher;
});
/// <summary>
/// Registers a lucene multi index searcher
/// </summary>
[Obsolete("Will be removed in Examine V5")]
public static IServiceCollection AddExamineLuceneMultiSearcher(
this IServiceCollection serviceCollection,
string name,
string[] indexNames,
Analyzer? analyzer = null)
{
var cfg = new Action<ExamineLuceneMultiSearcherConfiguration>(opt =>
{
opt.Analyzer = analyzer;
opt.FacetConfiguration = default;
});
return AddExamineLuceneMultiSearcher(serviceCollection, name, indexNames, cfg);
}
/// <summary>
/// Registers a lucene multi index searcher
/// </summary>
public static IServiceCollection AddExamineLuceneMultiSearcher(
this IServiceCollection serviceCollection,
string name,
string[] indexNames,
Action<ExamineLuceneMultiSearcherConfiguration>? configuration = null)
{
var cfg = new ExamineLuceneMultiSearcherConfiguration(name, indexNames);
configuration?.Invoke(cfg);
return serviceCollection.AddExamineSearcher<MultiIndexSearcher>(name, s =>
{
var matchedIndexes = s.GetServices<IIndex>()
.Where(x => indexNames.Contains(x.Name));
var parameters = new List<object>
{
matchedIndexes,
};
if (cfg.FacetConfiguration != null)
{
parameters.Add(cfg.FacetConfiguration);
}
if (cfg.Analyzer != null)
{
parameters.Add(cfg.Analyzer);
}
return parameters;
});
}
/// <summary>
/// Adds the Examine core services
/// </summary>
/// <param name="services"></param>
/// <param name="appRootDirectory"></param>
/// <returns></returns>
public static IServiceCollection AddExamine(this IServiceCollection services, DirectoryInfo? appRootDirectory = null)
{
services.TryAddSingleton<IApplicationRoot, CurrentEnvironmentApplicationRoot>();
services.TryAddSingleton<IExamineManager, ExamineManager>();
services.TryAddSingleton<IApplicationIdentifier, AspNetCoreApplicationIdentifier>();
services.TryAddSingleton<ILockFactory, DefaultLockFactory>();
services.TryAddSingleton<TempEnvFileSystemDirectoryFactory>();
services.TryAddSingleton<FileSystemDirectoryFactory>(
s => ActivatorUtilities.CreateInstance<FileSystemDirectoryFactory>(
s,
new[] { appRootDirectory ?? s.GetRequiredService<IApplicationRoot>().ApplicationRoot }));
services.TryAddSingleton<SyncedFileSystemDirectoryFactory>(
s =>
{
var baseDir = appRootDirectory ?? s.GetRequiredService<IApplicationRoot>().ApplicationRoot;
var tempDir = TempEnvFileSystemDirectoryFactory.GetTempPath(
s.GetRequiredService<IApplicationIdentifier>());
return ActivatorUtilities.CreateInstance<SyncedFileSystemDirectoryFactory>(
s,
new object[]
{
new DirectoryInfo(tempDir),
appRootDirectory ?? s.GetRequiredService<IApplicationRoot>().ApplicationRoot
});
});
return services;
}
}
}