protected Pattern(Vulcan.Packages.VulcanPackage vulcanPackage, DTS.IDTSSequence parentContainer)
{
_vulcanPackage = vulcanPackage;
_parentContainer = parentContainer;
_firstExecutableGeneratedByPattern = null;
_lastExecutableGeneratedByPattern = null;
}
public override void Emit(XPathNavigator patternNavigator)
{
string name = patternNavigator.SelectSingleNode("@Name").Value;
string constraintMode = patternNavigator.SelectSingleNode("@ConstraintMode").Value;
DTS.Sequence newParentContainer = VulcanPackage.AddSequenceContainer(name, ParentContainer);
DTS.Executable previousExec = null;
Pattern p = null;
foreach (XPathNavigator nav in patternNavigator.SelectChildren(XPathNodeType.Element))
{
p = PatternFactory.ProcessPattern(VulcanPackage, newParentContainer, nav, p);
switch (constraintMode)
{
case "Linear":
VulcanPackage.AddPrecedenceConstraint(previousExec, p.FirstExecutableGeneratedByPattern, newParentContainer);
break;
case "Parallel":
break;
default:
Message.Trace(Severity.Error, "Unknown ConstraintMode {0}", constraintMode);
break;
}
previousExec = p.LastExecutableGeneratedByPattern;
}
this.FirstExecutableGeneratedByPattern = newParentContainer;
this.LastExecutableGeneratedByPattern = this.FirstExecutableGeneratedByPattern;
}
protected Pattern(Vulcan.Packages.VulcanPackage vulcanPackage,DTS.IDTSSequence parentContainer)
{
_vulcanPackage = vulcanPackage;
_parentContainer = parentContainer;
_firstExecutableGeneratedByPattern = null;
_lastExecutableGeneratedByPattern = null;
}
protected void ExecuteDuringDesignTime(XPathNavigator patternNavigator, DTS.Executable task)
{
bool executeNow = patternNavigator.SelectSingleNode("@ExecuteDuringDesignTime").ValueAsBoolean;
if (executeNow)
{
Message.Trace(Severity.Alert, "Executing DTS Package {0}", VulcanPackage.ExtractNameFromDTSExecutable(task));
this.SafeExecute(task);
}
}
public DTS.Executable AppendExecutable(string moniker)
{
DTS.Executable executable = _dtsSequence.Executables.Add(moniker);
if (_constraintMode == "Linear")
{
if (_lastExecutable != null)
{
_dtsSequence.PrecedenceConstraints.Add(_lastExecutable, executable);
}
_lastExecutable = executable;
}
return executable;
}
public string ExtractNameFromDTSExecutable(DTS.Executable exec)
{
PropertyInfo namePropertyInfo = exec.GetType().GetProperty("Name");
if (namePropertyInfo != null)
{
return((string)namePropertyInfo.GetValue(exec, null));
}
else
{
return("");
}
}
public DTS.Executable AppendExecutable(string moniker)
{
DTS.Executable executable = _dtsSequence.Executables.Add(moniker);
if (_constraintMode == "Linear")
{
if (_lastExecutable != null)
{
_dtsSequence.PrecedenceConstraints.Add(_lastExecutable, executable);
}
_lastExecutable = executable;
}
return(executable);
}
public void AddPrecedenceConstraint(DTS.Executable from, DTS.Executable to, DTS.IDTSSequence parentContainer)
{
if (from != null && to != null && parentContainer != null)
{
if (
parentContainer.Executables.Contains(this.ExtractNameFromDTSExecutable(from)) &&
parentContainer.Executables.Contains(this.ExtractNameFromDTSExecutable(to))
)
{
DTS.PrecedenceConstraint pc =
parentContainer.PrecedenceConstraints.Add(from, to);
pc.Name = ExtractNameFromDTSExecutable(from) + "_" + ExtractNameFromDTSExecutable(to);
}
}
}
protected void ConfigurePatterns()
{
Pattern p = null;
foreach (XPathNavigator patternNavigator in _packageNavigator.Select("rc:Patterns", _vulcanConfig.NamespaceManager))
{
DTS.Executable previousExec = null;
foreach (XPathNavigator nav in patternNavigator.SelectChildren(XPathNodeType.Element))
{
p = PatternFactory.ProcessPattern(this, this.DTSPackage, nav, null);
if (p != null)
{
AddPrecedenceConstraint(previousExec, p.FirstExecutableGeneratedByPattern, this.DTSPackage);
previousExec = p.LastExecutableGeneratedByPattern;
}
}
}
}
protected void SafeExecute(DTS.Executable executable)
{
Vulcan.Common.ErrorEvents errorHandler = new Vulcan.Common.ErrorEvents();
DTS.DTSExecResult execResult = executable.Execute(null, null, errorHandler, null, null);
if (execResult == Microsoft.SqlServer.Dts.Runtime.DTSExecResult.Success && errorHandler.ValidationErrorCount == 0)
{
Message.Trace(
Severity.Notification,
"Success executing Task {0}",
VulcanPackage.ExtractNameFromDTSExecutable(executable)
);
}
else
{
Message.Trace(
Severity.Error,
"Error executing Task {0}: Result = {1} (BugBug: SSIS always returns success) but ErrorCount = {2}",
VulcanPackage.ExtractNameFromDTSExecutable(executable),
execResult, errorHandler.ValidationErrorCount
);
}
}
public SsisExecutable(DTS.Executable executable)
{
_executable = executable;
}
public void ProcessTaskBinding(Executable executable)
{
if (executable.BindingList != null && executable.BindingList.Count > 0)
{
foreach (var binding in executable.BindingList)
{
var parentExecutable = DtsSequence.Executables[((AST.AstNamedNode)binding.AstTaskflowInput.OutputPath.ParentItem).Name];
if (parentExecutable == null)
{
throw new InvalidOperationException("Could not find " + binding.AstTaskflowInput.OutputPath.Name);
}
var constraint = DtsSequence.PrecedenceConstraints.Add(parentExecutable, executable.DtsExecutable);
constraint.Name = GetPrecedenceConstraintEmissionName(binding.AstTaskflowPrecedenceConstraints, binding.AstTaskflowInput);
switch (binding.AstTaskflowInput.EvaluationOperation)
{
case TaskEvaluationOperationType.Constraint:
constraint.EvalOp = Microsoft.SqlServer.Dts.Runtime.DTSPrecedenceEvalOp.Constraint;
break;
case TaskEvaluationOperationType.Expression:
constraint.EvalOp = Microsoft.SqlServer.Dts.Runtime.DTSPrecedenceEvalOp.Expression;
constraint.Expression = binding.AstTaskflowInput.Expression;
break;
case TaskEvaluationOperationType.ExpressionAndConstraint:
constraint.EvalOp = Microsoft.SqlServer.Dts.Runtime.DTSPrecedenceEvalOp.ExpressionAndConstraint;
constraint.Expression = binding.AstTaskflowInput.Expression;
break;
case TaskEvaluationOperationType.ExpressionOrConstraint:
constraint.EvalOp = Microsoft.SqlServer.Dts.Runtime.DTSPrecedenceEvalOp.ExpressionOrConstraint;
constraint.Expression = binding.AstTaskflowInput.Expression;
break;
default:
throw new NotImplementedException(String.Format(CultureInfo.InvariantCulture, "TaskEvaluationOperationType {0} is not supported.", binding.AstTaskflowInput.EvaluationOperation));
}
switch (binding.AstTaskflowInput.EvaluationValue)
{
case TaskEvaluationOperationValue.Completion:
constraint.Value = Microsoft.SqlServer.Dts.Runtime.DTSExecResult.Completion;
break;
case TaskEvaluationOperationValue.Failure:
constraint.Value = Microsoft.SqlServer.Dts.Runtime.DTSExecResult.Failure;
break;
case TaskEvaluationOperationValue.Success:
constraint.Value = Microsoft.SqlServer.Dts.Runtime.DTSExecResult.Success;
break;
default:
throw new NotImplementedException(String.Format(CultureInfo.InvariantCulture, "EvaluationValue {0} is not supported.", binding.AstTaskflowInput.EvaluationValue));
}
switch (binding.AstTaskflowPrecedenceConstraints.LogicalType)
{
case LogicalOperationType.And:
constraint.LogicalAnd = true;
break;
case LogicalOperationType.Or:
constraint.LogicalAnd = false;
break;
default:
break;
}
}
}
else
{
if (ConstraintMode == ContainerConstraintMode.Linear)
{
if (_lastExecutable != null)
{
var constraint = DtsSequence.PrecedenceConstraints.Add(_lastExecutable, executable.DtsExecutable);
constraint.Name = String.Format(CultureInfo.InvariantCulture, "__DefaultLinear_Sink_{0}", executable.Name);
}
if (DtsSequence.Executables.Count > 0)
{
_lastExecutable = executable.DtsExecutable;
}
}
}
}
public static Pattern ProcessPattern(Packages.VulcanPackage vulcanPackage, DTS.IDTSSequence parentContainer, XPathNavigator patternNavigator, Pattern previousPattern)
{
DTS.Executable lastExecutableInPattern = null;
if (previousPattern != null)
{
lastExecutableInPattern = previousPattern.FirstExecutableGeneratedByPattern;
}
Pattern p = null;
Message.Trace(Severity.Debug, "Emitting Pattern {0}", patternNavigator.Name);
try
{
switch (patternNavigator.Name)
{
case "HelperTables":
p = new HelperTablePattern(vulcanPackage, parentContainer);
p.Emit(patternNavigator);
break;
case "ETL":
p = new ETLPattern(vulcanPackage, parentContainer);
p.Emit(patternNavigator);
break;
case "StoredProc":
p = new StoredProcPattern(vulcanPackage, parentContainer);
p.Emit(patternNavigator);
break;
case "Dimensions":
p = new DimensionsPattern(vulcanPackage, parentContainer);
p.Emit(patternNavigator);
break;
case "Logtainer":
p = new LogtainerPattern(vulcanPackage, parentContainer);
p.Emit(patternNavigator);
break;
case "LogUpdate":
p = new LogUpdatePattern(vulcanPackage, parentContainer);
p.Emit(patternNavigator);
break;
case "Container":
p = new ContainerPattern(vulcanPackage, parentContainer);
p.Emit(patternNavigator);
break;
case "FileSystemTask":
p = new FileSystemTaskPattern(vulcanPackage, parentContainer);
p.Emit(patternNavigator);
break;
case "ExecuteSQL":
p = new ExecuteSQLPattern(vulcanPackage, parentContainer);
p.Emit(patternNavigator);
break;
case "FactTable":
p = new FactTablePattern(vulcanPackage, parentContainer);
p.Emit(patternNavigator);
break;
case "ExecutePackage":
p = new ExecutePackagePattern(vulcanPackage, parentContainer);
p.Emit(patternNavigator);
break;
case "FTPTask":
p = new FTPTaskPattern(vulcanPackage, parentContainer);
p.Emit(patternNavigator);
break;
default:
break;
}
}
catch (System.Runtime.InteropServices.COMException ce)
{
Message.Trace(Severity.Error, ce, "Exception in Pattern {0}\n {1}\n", patternNavigator.Name, ce.Message);
}
catch (Exception e)
{
Message.Trace(Severity.Error, e, "Exception in Pattern {0}\n {1}\n", patternNavigator.Name, e.Message);
}
return(p);
}
public DTS.Executable AppendExecutable(string moniker)
{
DTS.Executable executable = DtsSequence.Executables.Add(moniker);
return(executable);
}
public override void Emit(XPathNavigator patternNavigator)
{
if (patternNavigator != null)
{
string taskName = patternNavigator.SelectSingleNode("@Name").Value;
string connectionName = patternNavigator.SelectSingleNode("@Connection").Value;
string varPrefix = patternNavigator.SelectSingleNode("@PreviousLogEntryVariablePrefix").Value;
string sourceColumn = patternNavigator.SelectSingleNode("@SourceColumn") == null ? null : patternNavigator.SelectSingleNode("@SourceColumn").Value;
string destinationColumn = patternNavigator.SelectSingleNode("@DestinationColumn") == null ? null : patternNavigator.SelectSingleNode("@DestinationColumn").Value;
string table = patternNavigator.SelectSingleNode("@Table") == null ? null : patternNavigator.SelectSingleNode("@Table").Value;
string tableConnectionName = patternNavigator.SelectSingleNode("@TableConnection") == null ? null : patternNavigator.SelectSingleNode("@TableConnection").Value;
if (varPrefix.ToUpperInvariant() == "varLog")
{
Message.Trace(Severity.Error, "Name: {0}: Error in PreviousLogEntryVariablePrefix: varLog is a reserved variable name.", taskName);
return;
}
Connection connection =
Connection.GetExistingConnection(VulcanPackage, connectionName);
LogtainerLog ll = new LogtainerLog(
VulcanPackage,
Resources.LogVariablePrefix + VulcanPackage.Name + taskName,
sourceColumn,
destinationColumn,
table,
tableConnectionName
);
string execSqlTaskName = Resources.Log + Resources.Seperator + VulcanPackage.Name + Resources.Seperator + taskName + Resources.Seperator;
SQLTask logStartTask = new SQLTask(VulcanPackage, execSqlTaskName + Resources.Start, execSqlTaskName + Resources.Start, ParentContainer, connection);
TemplateEmitter te = new TemplateEmitter(VulcanPackage.TemplateManager["LogStart"]);
te.SetNamedParameter("ETLName", VulcanPackage.Name);
te.SetNamedParameter("TaskName", taskName);
if (_logStack.Count > 0)
{
te.SetNamedParameter("ParentLogID", "?");
// Yes you have to hard code the data type as there is no lookup or cross-reference source, and the intger is dependent on the connection you create... bugbug!
logStartTask.BindParameter(CurrentLog.LogVariable, Microsoft.SqlServer.Dts.Tasks.ExecuteSQLTask.ParameterDirections.Input, 3);
}
else
{
te.SetNamedParameter("ParentLogID", "NULL");
}
logStartTask.BindParameter(ll.LogVariable, Microsoft.SqlServer.Dts.Tasks.ExecuteSQLTask.ParameterDirections.Output, 3);
logStartTask.BindParameter(ll.LastRecordLogVariable, Microsoft.SqlServer.Dts.Tasks.ExecuteSQLTask.ParameterDirections.Output, 3);
logStartTask.BindParameter(ll.IsAnotherInstanceCurrentlyRunningLogVariable, Microsoft.SqlServer.Dts.Tasks.ExecuteSQLTask.ParameterDirections.Output, 3);
string sqlExpression;
te.Emit(out sqlExpression);
logStartTask.TransmuteToExpressionTask(sqlExpression);
te = new TemplateEmitter(VulcanPackage.TemplateManager["LogGetValue"]);
te.SetNamedParameter("LogID", ll.LastRecordLogVariable.QualifiedName);
this.FirstExecutableGeneratedByPattern = logStartTask.SQLTaskHost;
// Push the current log variable onto the stack!
_logStack.Push(ll);
//Add a new SQL Task to read the previous log
te = new TemplateEmitter("LogGetValue", VulcanPackage, ll.LastRecordLogVariable.QualifiedName);
string readPreviousLogValuesQuery;
te.Emit(out readPreviousLogValuesQuery);
SQLTask readPreviousLogValues = new SQLTask(VulcanPackage, Resources.Log + Resources.LoadInto + varPrefix, Resources.Log + Resources.LoadInto + varPrefix, ParentContainer, connection);
readPreviousLogValues.TransmuteToExpressionTask(readPreviousLogValuesQuery);
VulcanPackage.AddPrecedenceConstraint(this.FirstExecutableGeneratedByPattern, readPreviousLogValues.SQLTaskHost, ParentContainer);
//Bind and create variables for the SQL Task that reads the previous log. This is kinda hacky
readPreviousLogValues.BindParameter(
VulcanPackage.AddVariable(varPrefix + "StartTime", new DateTime(1980, 1, 1)),
Microsoft.SqlServer.Dts.Tasks.ExecuteSQLTask.ParameterDirections.Output,
(int)System.Data.OleDb.OleDbType.DBTimeStamp,
255);
readPreviousLogValues.BindParameter(
VulcanPackage.AddVariable(varPrefix + "EndTime", new DateTime(1980, 1, 1)),
Microsoft.SqlServer.Dts.Tasks.ExecuteSQLTask.ParameterDirections.Output,
(int)System.Data.OleDb.OleDbType.DBTimeStamp,
255);
readPreviousLogValues.BindParameter(
VulcanPackage.AddVariable(varPrefix + "FirstSourceRecord", String.Empty),
Microsoft.SqlServer.Dts.Tasks.ExecuteSQLTask.ParameterDirections.Output,
(int)System.Data.OleDb.OleDbType.WChar,
255);
readPreviousLogValues.BindParameter(
VulcanPackage.AddVariable(varPrefix + "FirstDestinationRecord", String.Empty),
Microsoft.SqlServer.Dts.Tasks.ExecuteSQLTask.ParameterDirections.Output,
(int)System.Data.OleDb.OleDbType.WChar,
255);
readPreviousLogValues.BindParameter(
VulcanPackage.AddVariable(varPrefix + "LastSourceRecord", String.Empty),
Microsoft.SqlServer.Dts.Tasks.ExecuteSQLTask.ParameterDirections.Output,
(int)System.Data.OleDb.OleDbType.WChar,
255);
readPreviousLogValues.BindParameter(
VulcanPackage.AddVariable(varPrefix + "LastDestinationRecord", String.Empty),
Microsoft.SqlServer.Dts.Tasks.ExecuteSQLTask.ParameterDirections.Output,
(int)System.Data.OleDb.OleDbType.WChar,
255);
readPreviousLogValues.BindParameter(
VulcanPackage.AddVariable(varPrefix + "Status", String.Empty),
Microsoft.SqlServer.Dts.Tasks.ExecuteSQLTask.ParameterDirections.Output,
(int)System.Data.OleDb.OleDbType.WChar,
255);
readPreviousLogValues.BindParameter(
VulcanPackage.AddVariable(varPrefix + "Notes", String.Empty),
Microsoft.SqlServer.Dts.Tasks.ExecuteSQLTask.ParameterDirections.Output,
(int)System.Data.OleDb.OleDbType.WChar,
255);
// Handle the sub-tasks just like the Container pattern
DTS.Executable previousExec = readPreviousLogValues.SQLTaskHost;
Pattern p = null;
foreach (XPathNavigator nav in patternNavigator.SelectChildren(XPathNodeType.Element))
{
p = PatternFactory.ProcessPattern(VulcanPackage, ParentContainer, nav, p);
VulcanPackage.AddPrecedenceConstraint(previousExec, p.FirstExecutableGeneratedByPattern, ParentContainer);
previousExec = p.LastExecutableGeneratedByPattern;
}
this.LastExecutableGeneratedByPattern = previousExec;
// Pop the current log variable off of the stack and end the log.
ll = _logStack.Pop();
te = new TemplateEmitter(VulcanPackage.TemplateManager["LogSetValue"]);
te.SetNamedParameter("LogID", ll.LogVariable.QualifiedName);
StringBuilder writeValuesToLogQuery = new StringBuilder();
foreach (string column in ll.LogColumnDictionary.Keys)
{
string temp;
te.SetNamedParameter("Column", column);
te.SetNamedParameter("Value", ll.LogColumnDictionary[column].QualifiedName);
te.Emit(out temp);
writeValuesToLogQuery.Append(temp);
writeValuesToLogQuery.AppendFormat(" + \n");
}
te = new TemplateEmitter(VulcanPackage.TemplateManager["LogEnd"]);
te.Emit(out sqlExpression);
writeValuesToLogQuery.Append(sqlExpression);
SQLTask logEndTask = new SQLTask(VulcanPackage, execSqlTaskName + Resources.Stop, execSqlTaskName + Resources.Stop, ParentContainer, connection);
logEndTask.TransmuteToExpressionTask(writeValuesToLogQuery.ToString());
logEndTask.BindParameter(ll.LogVariable, Microsoft.SqlServer.Dts.Tasks.ExecuteSQLTask.ParameterDirections.Input, 3);
if (previousExec != null)
{
VulcanPackage.AddPrecedenceConstraint(previousExec, logEndTask.SQLTaskHost, ParentContainer);
}
this.LastExecutableGeneratedByPattern = logEndTask.SQLTaskHost;
}
}
public SsisExecutable(DTS.Executable executable)
{
_executable = executable;
}
protected virtual void AddComponent(ISequence sequence, string ExecutableID)
{
sequence.AddTask(this);
Executable = sequence.Executables.Add(ExecutableID);
}
public void ProcessTaskBinding(Executable executable)
{
if (executable.BindingList != null && executable.BindingList.Count > 0)
{
foreach (var binding in executable.BindingList)
{
var parentExecutable = DtsSequence.Executables[((AST.AstNamedNode)binding.AstTaskflowInput.OutputPath.ParentItem).Name];
if (parentExecutable == null)
{
throw new InvalidOperationException("Could not find " + binding.AstTaskflowInput.OutputPath.Name);
}
var constraint = DtsSequence.PrecedenceConstraints.Add(parentExecutable, executable.DtsExecutable);
constraint.Name = GetPrecedenceConstraintEmissionName(binding.AstTaskflowPrecedenceConstraints, binding.AstTaskflowInput);
switch (binding.AstTaskflowInput.EvaluationOperation)
{
case TaskEvaluationOperationType.Constraint:
constraint.EvalOp = Microsoft.SqlServer.Dts.Runtime.DTSPrecedenceEvalOp.Constraint;
break;
case TaskEvaluationOperationType.Expression:
constraint.EvalOp = Microsoft.SqlServer.Dts.Runtime.DTSPrecedenceEvalOp.Expression;
constraint.Expression = binding.AstTaskflowInput.Expression;
break;
case TaskEvaluationOperationType.ExpressionAndConstraint:
constraint.EvalOp = Microsoft.SqlServer.Dts.Runtime.DTSPrecedenceEvalOp.ExpressionAndConstraint;
constraint.Expression = binding.AstTaskflowInput.Expression;
break;
case TaskEvaluationOperationType.ExpressionOrConstraint:
constraint.EvalOp = Microsoft.SqlServer.Dts.Runtime.DTSPrecedenceEvalOp.ExpressionOrConstraint;
constraint.Expression = binding.AstTaskflowInput.Expression;
break;
default:
throw new NotImplementedException(String.Format(CultureInfo.InvariantCulture, "TaskEvaluationOperationType {0} is not supported.", binding.AstTaskflowInput.EvaluationOperation));
}
switch (binding.AstTaskflowInput.EvaluationValue)
{
case TaskEvaluationOperationValue.Completion:
constraint.Value = Microsoft.SqlServer.Dts.Runtime.DTSExecResult.Completion;
break;
case TaskEvaluationOperationValue.Failure:
constraint.Value = Microsoft.SqlServer.Dts.Runtime.DTSExecResult.Failure;
break;
case TaskEvaluationOperationValue.Success:
constraint.Value = Microsoft.SqlServer.Dts.Runtime.DTSExecResult.Success;
break;
default:
throw new NotImplementedException(String.Format(CultureInfo.InvariantCulture, "EvaluationValue {0} is not supported.", binding.AstTaskflowInput.EvaluationValue));
}
switch (binding.AstTaskflowPrecedenceConstraints.LogicalType)
{
case LogicalOperationType.And:
constraint.LogicalAnd = true;
break;
case LogicalOperationType.Or:
constraint.LogicalAnd = false;
break;
default:
break;
}
}
}
else
{
if (ConstraintMode == ContainerConstraintMode.Linear)
{
if (_lastExecutable != null)
{
var constraint = DtsSequence.PrecedenceConstraints.Add(_lastExecutable, executable.DtsExecutable);
constraint.Name = String.Format(CultureInfo.InvariantCulture, "__DefaultLinear_Sink_{0}", executable.Name);
}
if (DtsSequence.Executables.Count > 0)
{
_lastExecutable = executable.DtsExecutable;
}
}
}
}
