/// <summary>
/// Initializes a new instance of the Indexer class.
/// </summary>
/// <param name="name">Gets or sets the name of the indexer.</param>
/// <param name="dataSourceName">Gets or sets the name of the
/// datasource from which this indexer reads data.</param>
/// <param name="targetIndexName">Gets or sets the name of the index to
/// which this indexer writes data.</param>
/// <param name="description">Gets or sets the description of the
/// indexer.</param>
/// <param name="schedule">Gets or sets the schedule for this
/// indexer.</param>
/// <param name="parameters">Gets or sets parameters for indexer
/// execution.</param>
public Indexer(string name, string dataSourceName, string targetIndexName, string description = default(string), IndexingSchedule schedule = default(IndexingSchedule), IndexingParameters parameters = default(IndexingParameters))
{
Name = name;
Description = description;
DataSourceName = dataSourceName;
TargetIndexName = targetIndexName;
Schedule = schedule;
Parameters = parameters;
CustomInit();
}
private void AssertSchedulesEqual(IndexingSchedule expected, IndexingSchedule actual)
{
if (expected == null)
{
Assert.Null(actual);
}
else
{
Assert.NotNull(actual);
Assert.Equal(expected.Interval, actual.Interval);
Assert.Equal(expected.StartTime, actual.StartTime);
}
}
public static async Task Main(string[] args)
{
IConfigurationBuilder builder = new ConfigurationBuilder().AddJsonFile("appsettings.json");
IConfigurationRoot configuration = builder.Build();
if (configuration["SearchServiceEndPoint"] == "Put your search service endpoint here")
{
Console.Error.WriteLine("Specify SearchServiceEndPoint in appsettings.json");
Environment.Exit(-1);
}
if (configuration["SearchServiceAdminApiKey"] == "Put your search service admin API key here")
{
Console.Error.WriteLine("Specify SearchServiceAdminApiKey in appsettings.json");
Environment.Exit(-1);
}
if (configuration["AzureSQLConnectionString"] == "Put your Azure SQL database connection string here")
{
Console.Error.WriteLine("Specify AzureSQLConnectionString in appsettings.json");
Environment.Exit(-1);
}
SearchIndexClient indexClient = new SearchIndexClient(new Uri(configuration["SearchServiceEndPoint"]), new AzureKeyCredential(configuration["SearchServiceAdminApiKey"]));
SearchIndexerClient indexerClient = new SearchIndexerClient(new Uri(configuration["SearchServiceEndPoint"]), new AzureKeyCredential(configuration["SearchServiceAdminApiKey"]));
Console.WriteLine("Creating index...");
FieldBuilder fieldBuilder = new FieldBuilder();
var searchFields = fieldBuilder.Build(typeof(Hotel));
var searchIndex = new SearchIndex("hotels-sql-idx", searchFields);
// If we have run the sample before, this index will be populated
// We can clear the index by deleting it if it exists and creating
// it again
CleanupSearchIndexClientResources(indexClient, searchIndex);
indexClient.CreateOrUpdateIndex(searchIndex);
Console.WriteLine("Creating data source...");
// The sample data set has a table name of "hotels"
// The sample data set table has a "soft delete" column named IsDeleted
// When this column is set to true and the indexer sees it, it will remove the
// corresponding document from the search service
// See this link for more information
// https://docs.microsoft.com/en-us/dotnet/api/microsoft.azure.search.models.softdeletecolumndeletiondetectionpolicy
// The sample data set uses SQL integrated change tracking for change detection
// This means that when the indexer runs, it will be able to detect which data has
// changed since the last run using built in change tracking
// See this link for more information
// https://docs.microsoft.com/en-us/sql/relational-databases/track-changes/about-change-tracking-sql-server
var dataSource =
new SearchIndexerDataSourceConnection(
"hotels-sql-ds",
SearchIndexerDataSourceType.AzureSql,
configuration["AzureSQLConnectionString"],
new SearchIndexerDataContainer("hotels"));
// The data source does not need to be deleted if it was already created,
// but the connection string may need to be updated if it was changed
indexerClient.CreateOrUpdateDataSourceConnection(dataSource);
Console.WriteLine("Creating Azure SQL indexer...");
var schedule = new IndexingSchedule(TimeSpan.FromDays(1))
{
StartTime = DateTimeOffset.Now
};
var parameters = new IndexingParameters()
{
BatchSize = 100,
MaxFailedItems = 0,
MaxFailedItemsPerBatch = 0
};
// Indexer declarations require a data source and search index.
// Common optional properties include a schedule, parameters, and field mappings
// The field mappings below are redundant due to how the Hotel class is defined, but
// we included them anyway to show the syntax
var indexer = new SearchIndexer("hotels-sql-idxr", dataSource.Name, searchIndex.Name)
{
Description = "Data indexer",
Schedule = schedule,
Parameters = parameters,
FieldMappings =
{
new FieldMapping("_id")
{
TargetFieldName = "HotelId"
},
new FieldMapping("Amenities")
{
TargetFieldName = "Tags"
}
}
};
// Indexers contain metadata about how much they have already indexed
// If we already ran the sample, the indexer will remember that it already
// indexed the sample data and not run again
// To avoid this, reset the indexer if it exists
CleanupSearchIndexerClientResources(indexerClient, indexer);
await indexerClient.CreateOrUpdateIndexerAsync(indexer);
// We created the indexer with a schedule, but we also
// want to run it immediately
Console.WriteLine("Running Azure SQL indexer...");
try
{
await indexerClient.RunIndexerAsync(indexer.Name);
}
catch (CloudException e) when(e.Response.StatusCode == (HttpStatusCode)429)
{
Console.WriteLine("Failed to run indexer: {0}", e.Response.Content);
}
// Wait 5 seconds for indexing to complete before checking status
Console.WriteLine("Waiting for indexing...\n");
System.Threading.Thread.Sleep(5000);
// After an indexer run, you can retrieve status.
CheckIndexerStatus(indexerClient, indexer);
Console.WriteLine("Press any key to continue...");
Console.ReadKey();
Environment.Exit(0);
}
// This method requires index and datasource
private async Task CreateIndexerAsync()
{
var indexSchedule = new IndexingSchedule(TimeSpan.FromMinutes(30), DateTimeOffset.Now);
var indexer = new Indexer(INDEXER_NAME, DATASOURCE_NAME, INDEX_NAME, "hourly scheduled", indexSchedule);
await _client.Indexers.CreateOrUpdateWithHttpMessagesAsync(indexer);
}
public void CreateIndex <T>()
{
string azureSQLConnectionStr = ConfigurationManager.AppSettings["AzureSqlConnectionString"].ToString();
Uri Uri = new Uri(ConfigurationManager.AppSettings["SearchServiceEndPoint"]);
string searchServiceKey = ConfigurationManager.AppSettings["SearchServiceAdminApiKey"];
AzureKeyCredential keyCredential = new AzureKeyCredential(searchServiceKey);
SearchIndexClient indexClient = new SearchIndexClient(Uri, keyCredential);
SearchIndexerClient indexerClient = new SearchIndexerClient(Uri, keyCredential);
Console.WriteLine("Creating index...");
_logger.LogInformation("Creating index for Orion Customer");
FieldBuilder fieldBuilder = new FieldBuilder();
var searchFields = fieldBuilder.Build(typeof(T));
var searchIndex = new SearchIndex(GetIndexName(HdsConstants.Orion, typeof(T).ToString()), searchFields);
CleanupSearchIndexClientResources(indexClient, searchIndex);
indexClient.CreateOrUpdateIndex(searchIndex);
Console.WriteLine("Creating data source...");
_logger.LogInformation("Creating data source for Orion Customer");
var dataSource =
new SearchIndexerDataSourceConnection(
GetDataSourceName(HdsConstants.Orion, typeof(T).ToString()),
SearchIndexerDataSourceType.AzureSql,
azureSQLConnectionStr,
new SearchIndexerDataContainer($"[{GetTableName(typeof(T).ToString())}]"));
indexerClient.CreateOrUpdateDataSourceConnection(dataSource);
//Creating indexer
Console.WriteLine("Creating Azure SQL indexer...");
_logger.LogInformation("Creating Azure SQL indexer for Orion Customer");
var schedule = new IndexingSchedule(TimeSpan.FromDays(1))
{
StartTime = DateTimeOffset.Now
};
var parameters = new IndexingParameters()
{
BatchSize = 100,
MaxFailedItems = 0,
MaxFailedItemsPerBatch = 0
};
var indexer = new SearchIndexer(GetIndexerName(HdsConstants.Orion, typeof(T).ToString()), dataSource.Name, searchIndex.Name)
{
Description = "Data indexer",
Schedule = schedule,
Parameters = parameters,
};
indexerClient.CreateOrUpdateIndexerAsync(indexer);
Console.WriteLine("Running Azure SQL indexer...");
try
{
indexerClient.RunIndexerAsync(indexer.Name);
}
catch (CloudException e) when(e.Response.StatusCode == (HttpStatusCode)429)
{
Console.WriteLine("Failed to run indexer: {0}", e.Response.Content);
_logger.LogError("Failed to run indexer: {0}", e.Response.Content);
}
}