private async Task ExecuteScriptStrategiesAsync(Assembly migrationAssembly)
{
//read all the migration embed in CosmosDB/Migrations
var ressources = migrationAssembly.GetManifestResourceNames()
.Where(r => r.Contains("." + options.Value.MigrationFolder + "."))
.OrderBy(r => r)
.ToList();
//for each migration
foreach (var migration in ressources)
{
string migrationContent;
using (var stream = migrationAssembly.GetManifestResourceStream(migration))
{
using (var reader = new StreamReader(stream))
{
migrationContent = await reader.ReadToEndAsync();
}
}
var parsedMigration = new ParsedMigrationName(migration, options);
var strategy = scriptStrategies.FirstOrDefault(s => s.Handle(parsedMigration));
if (strategy == null)
{
throw new InvalidOperationException(string.Format("No strategy found for migration '{0}", migration));
}
await client.CreateDatabaseIfNotExistsAsync(parsedMigration.DataBase);
await client.CreateDocumentCollectionIfNotExistsAsync(UriFactory.CreateDatabaseUri(parsedMigration.DataBase.Id), parsedMigration.Collection);
await strategy.ApplyMigrationAsync(client, parsedMigration, migrationContent);
}
}
public async Task ApplyMigrationAsync(DocumentClient client, ParsedMigrationName migration, string content)
{
await client.UpsertStoredProcedureAsync(
UriFactory.CreateDocumentCollectionUri(migration.DataBase.Id, migration.Collection.Id),
new StoredProcedure()
{
Body = content,
Id = migration.Name
});
}
public async Task ApplyMigrationAsync(DocumentClient client, ParsedMigrationName migration, string content)
{
var nameSplit = migration.Name.Split('-');
Trigger trigger = new Trigger()
{
Body = content,
Id = nameSplit[2],
TriggerOperation = (TriggerOperation)Enum.Parse(typeof(TriggerOperation), nameSplit[1]),
TriggerType = (TriggerType)Enum.Parse(typeof(TriggerType), nameSplit[0])
};
await client.UpsertTriggerAsync(
UriFactory.CreateDocumentCollectionUri(migration.DataBase.Id, migration.Collection.Id),
trigger);
}
public bool Handle(ParsedMigrationName name)
{
return(name.Type == "StoredProcedure");
}
public bool Handle(ParsedMigrationName migration)
{
return(migration.Type == "Trigger");
}
public bool Handle(ParsedMigrationName name)
{
return(name.Type == "Function");
}