private static async Task Main()
{
using var pool = new SingleNodeConnectionPool(new Uri("http://localhost:9200"));
using var connectionSettings = new ConnectionSettings(pool)
.PrettyJson()
.DefaultIndex(nameof(SocialMediaLists).ToLower())
.DisableDirectStreaming()
.OnRequestCompleted(ElasticSearchLogHandler.Handle);
var elasticClient = new ElasticClient(connectionSettings);
using var dbContext = new SocialMediaListsContextFactory().CreateDbContext(null);
var cancellationToken = CancellationToken.None;
await UpdateDatabaseAsync(dbContext, elasticClient, cancellationToken);
var seedSource = new DataSeedCollection();
await SeedDataAsync(dbContext, elasticClient, seedSource, cancellationToken);
var queryTerm = GenerateQueryTermFromSample(seedSource);
var filter = GenerateSearchPostRequest(queryTerm);
var result = await GetPostQueryService(dbContext, elasticClient)
.SearchAsync(filter, cancellationToken);
PrintPostSearchResponse(queryTerm, result);
}
public SampleDataSeeder(IElasticClient elasticClient,
SocialMediaListsDbContext socialMediaListsDbContext,
DataSeedCollection dataSeedCollection)
{
_elasticClient = elasticClient;
_socialMediaListsDbContext = socialMediaListsDbContext;
_dataSeedCollection = dataSeedCollection;
}
private static async Task SeedDataAsync(SocialMediaListsDbContext dbContext,
IElasticClient elasticClient,
DataSeedCollection seedCollection,
CancellationToken cancellationToken)
{
var dataSeeder = new SampleDataSeeder(elasticClient, dbContext, seedCollection);
await dataSeeder.SeedAsync(cancellationToken);
}
private static string GenerateQueryTermFromSample(DataSeedCollection seedSource)
{
char[] delimiterChars = { ' ', ',', '.', ':', '\t' };
var word = seedSource.Posts.GetSample()
.Take(10)
.SelectMany(x => x.Content.Split(delimiterChars))
.First(x => x.Length > 5);
return(word);
}
public void ConfigureSeedData(IApplicationBuilder app, IWebHostEnvironment env)
{
using var serviceScope = app.ApplicationServices.CreateScope();
using var dbContext = serviceScope.ServiceProvider.GetService <SocialMediaListsDbContext>();
var elasticClient = serviceScope.ServiceProvider.GetService <IElasticClient>();
var seedSource = new DataSeedCollection();
var dataSeeder = new SampleDataSeeder(elasticClient, dbContext, seedSource);
dataSeeder.Seed();
}
