/// <summary>
/// Creates a new copy of the processTask and all it's arguments in the database, this clone is then hooked up to the
/// new LoadMetadata at the specified stage
/// </summary>
/// <param name="loadMetadata">The new LoadMetadata parent for the clone</param>
/// <param name="loadStage">The new load stage to put the clone in </param>
/// <returns>the new ProcessTask (the clone has a different ID to the parent)</returns>
public ProcessTask CloneToNewLoadMetadataStage(LoadMetadata loadMetadata, LoadStage loadStage)
{
var cataRepository = ((CatalogueRepository)Repository);
//clone only accepts sql connections so make sure we aren't in mysql land or something
using (cataRepository.BeginNewTransactedConnection())
{
try
{
//get list of arguments to also clone (will happen outside of transaction
ProcessTaskArgument[] toCloneArguments = ProcessTaskArguments.ToArray();
//create a new transaction for all the cloning - note that once all objects are cloned the transaction is committed then all the objects are adjusted outside the transaction
ProcessTask clone = new ProcessTask(CatalogueRepository, LoadMetadata, loadStage);
CopyShallowValuesTo(clone);
//foreach of our child arguments
foreach (ProcessTaskArgument argument in toCloneArguments)
{
//clone it but rewire it to the proper ProcessTask parent (the clone)
argument.ShallowClone(clone);
}
//the values passed into parameter
clone.LoadMetadata_ID = loadMetadata.ID;
clone.LoadStage = loadStage;
clone.SaveToDatabase();
//it worked
cataRepository.EndTransactedConnection(true);
//return the clone
return(clone);
}
catch (Exception)
{
cataRepository.EndTransactedConnection(false);
throw;
}
}
}
private void CheckForProblemsInSQLFile(ICheckNotifier notifier)
{
try
{
var sql = File.ReadAllText(Path);
//lets check for any SQL that indicates user is trying to modify a STAGING table in a RAW script (for example)
foreach (TableInfo tableInfo in LoadMetadata.GetDistinctTableInfoList(false))
{
//for each stage get all the object names that are in that stage
foreach (var stage in new[] { LoadStage.AdjustRaw, LoadStage.AdjustStaging, LoadStage.PostLoad })
{
//process task belongs in that stage anyway so nothing is prohibited
if (stage == (LoadStage == LoadStage.Mounting? LoadStage.AdjustRaw:LoadStage))
{
continue;
}
//figure out what is prohibited
string prohibitedSql = tableInfo.GetQuerySyntaxHelper().EnsureFullyQualified(tableInfo.GetDatabaseRuntimeName(stage), null, tableInfo.GetRuntimeName(stage));
//if we reference it, complain
if (sql.Contains(prohibitedSql))
{
notifier.OnCheckPerformed(
new CheckEventArgs(
"Sql in file '" + Path + "' contains a reference to '" + prohibitedSql +
"' which is prohibited since the ProcessTask ('" + Name + "') runs in LoadStage " +
LoadStage, CheckResult.Warning));
}
}
}
}
catch (Exception e)
{
notifier.OnCheckPerformed(new CheckEventArgs("Failed to check the contents of the SQL file '" + Path + "'", CheckResult.Fail, e));
}
}
/// <summary>
/// Returns all tables loaded by the parent <see cref="LoadMetadata"/>
/// </summary>
/// <returns></returns>
public IEnumerable <TableInfo> GetTableInfos()
{
return(LoadMetadata.GetDistinctTableInfoList(true));
}