public async Task EnumerateObjectsInDatabases(
SqlConnectionViewModel connection,
IEnumerable <DatabaseViewModel> databases,
string nameSearchString,
string schemaSearchString,
string definitionSearchString,
IEventAggregator eventAggregator)
{
Contract.Requires(databases != null);
//int databaseCount = databases.Count();
var log = LogManager.GetLog(typeof(SchemaDBContext));
var tasks = new List <Task>();
eventAggregator.PublishOnUIThread(new ObjectEnumerationStartingMessage());
foreach (var db in databases)
{
var t = Task.Factory.StartNew(() =>
{
try
{
log.Info("Sch DB Ctx begin foreach DB {0}", db.db_name);
var connectionString = ConnectionViewModel.ConnectionString();
var cnStringBuilder = new SqlConnectionStringBuilder(connectionString);
cnStringBuilder.InitialCatalog = db.db_name;
using (var cn = new SqlConnection(cnStringBuilder.ConnectionString))
{
cn.Open();
var objectNameSearchParam = new SqlParameter("@objectNameSearchParam______", (nameSearchString ?? "").Trim());
var objectSchemaSearchParam = new SqlParameter("@objectSchemaSearchParam______", (schemaSearchString ?? "").Trim());
var objectDefinitionSearchParam = new SqlParameter("@objectDefinitionSearchParam______", (definitionSearchString ?? "").Trim());
var cmd = cn.CreateCommand();
cmd.CommandTimeout = 0;
cmd.CommandText = objectsQuery;
cmd.Parameters.Add(objectNameSearchParam);
cmd.Parameters.Add(objectSchemaSearchParam);
cmd.Parameters.Add(objectDefinitionSearchParam);
using (var result = cmd.ExecuteReader())
{
var objects = SysObject.MapFrom(result).ToArray();
var message = new EnumerateObjectsInDatabaseMessage(ConnectionViewModel, objects, db.db_name, connection.ServerAndInstance);
eventAggregator.PublishOnUIThread(message);
}
}
}
catch (Exception ex)
{
connection.ErrorMessage = ex.ToString();
eventAggregator.PublishOnUIThread(ex);
}
}, TaskCreationOptions.LongRunning);
tasks.Add(t);
}
await Task.Factory.StartNew(() => Task.WaitAll(tasks.ToArray()));
return;
}
public EnumerateObjectsInDatabaseMessage(SqlConnectionViewModel vm, IEnumerable <Data.SysObject> dbObjects, string dbName, string serverInstanceName)
{
Contract.Requires(vm != null);
Contract.Requires(dbObjects != null);
Contract.Requires(dbObjects.Count() > 0);
Contract.Requires(string.IsNullOrWhiteSpace(dbName) == false);
Contract.Requires(string.IsNullOrWhiteSpace(serverInstanceName) == false);
DatabaseName = dbName;
ServerInstanceName = serverInstanceName;
ConnectionViewModel = vm;
DBObjects = dbObjects;
}
public static async Task <IEnumerable <DatabaseViewModel> > GetDatabases(SqlConnectionViewModel vm)
{
using (var cn = new SqlConnection(vm.ConnectionString()))
{
await cn.OpenAsync();
using (var cmd = cn.CreateCommand())
{
cmd.CommandText = getDBsQuery;
cmd.CommandType = CommandType.Text;
using (var rdr = await cmd.ExecuteReaderAsync())
{
return(DatabaseViewModel.FromDataReader(rdr).ToArray());
}
}
}
}
public DBObjectViewModel(Data.SysObject dbObject, SqlConnectionViewModel cnvm, IEventAggregator eventAgg, IShell shell)
{
Contract.Requires(dbObject != null);
Contract.Requires(cnvm != null);
Contract.Requires(eventAgg != null);
this.shell = shell;
EventAggregator = eventAgg;
SearchText =
string.Format("{0} {1} {2} {3} {4}",
dbObject.server_name,
dbObject.db_name,
dbObject.type_desc,
dbObject.full_name,
dbObject.parent_fq_name);
ConnectionViewModel = cnvm;
SysObject = dbObject;
}
public SchemaDBContext(SqlConnectionViewModel vm)
{
ConnectionViewModel = vm;
}
