protected void init_task(Action act)
{
var tsk = _curTask == null ? (TaskDef)_currentCompositeTask : _curTask;
string k = DslUtil.TaskScriptKey(tsk.Id, "_paramInit");
_taskScripts[k] = act;
}
protected void prepare_output_data(Action act)
{
var tsk = _curTask == null ? (TaskDef)_currentCompositeTask : _curTask;
string k = DslUtil.TaskScriptKey(tsk.Id, "_variableUpdateOnComplete");
_taskScripts[k] = act;
}
protected void variable_input_binding(Func <object> f, string codeString)
{
if (_curVar == null)
{
throw new Exception("input_binding only in variable def");
}
string k = DslUtil.TaskVarInBindingKey(_curTask != null ? _curTask.Id : _currentCompositeTask.Id, _curVar.Name);
var b = new DataBindingDef
{
BindType = DataBindingType.Expr,
Source = codeString,
Target = _curVar.Name
};
_variableBinds[k] = f;
if (_curTask != null)
{
_curTask.AddInputDataBinding(b);
}
else if (_currentCompositeTask != null)
{
_currentCompositeTask.AddInputDataBinding(b);
}
else
{
throw new Exception();
}
}
protected void output_bindings_code(Func <SC.IDictionary> fun, string codeStr)
{
TaskDef tsk = _curTask != null ? _curTask : (TaskDef)_currentCompositeTask;
string k = DslUtil.TaskOutputDataBindingKey(tsk.Id);
_variableBinds[k] = fun;
}
protected void variable_default(Func <object> f, string codeString)
{
string k = DslUtil.TaskVariableDefaultKey(_curTask == null ? _currentCompositeTask.Id : _curTask.Id, _curVar.Name);
_curVar.DefaultValueExpr = codeString;
_variableBinds[k] = f;
}
protected void multi_instance_split_expression(Func <object> dataSplitQuery, string code)
{
TaskDef tsk = _curTask != null ? _curTask : (TaskDef)_currentCompositeTask;
string k = DslUtil.TaskMultiInstanceSplitKey(tsk.Id);
tsk.MultiInstanceSplitExpression = string.IsNullOrEmpty(code) ? "# compiled code block" : code;
_variableBinds[k] = dataSplitQuery;
}
public Dictionary <string, object> PrepareChildTaskInputData(CompositeTaskInstance cti, TaskDef childTask, ITaskExecutionContext ctx)
{
_pd.SetTaskInstanceInfo(cti, ctx);
string k1 = DslUtil.TaskInputDataBindingKey(childTask.Id);
if (_pd._variableBinds.ContainsKey(k1))
{
//get full data record
SC.IDictionary dic = (SC.IDictionary)_pd._variableBinds[k1]();
return(ToTaskData(dic));
}
Dictionary <string, object> ret = new Dictionary <string, object>();
if (childTask.Variables != null)
{
if (childTask.AutoBindVariables)
{
foreach (var vd in childTask.Variables)
{
if (vd.VariableDir == ProcessModel.Data.VariableDef.Dir.In ||
vd.VariableDir == ProcessModel.Data.VariableDef.Dir.InOut)
{
//TODO add type conversion/control
if (cti.TaskData.ContainsKey(vd.Name))
{
ret[vd.Name] = cti.TaskData[vd.Name];
}
}
}
}
if (childTask.InputDataBindings != null)
{
foreach (var bd in childTask.InputDataBindings)
{
if (bd.BindType == DataBindingType.CopyVar)
{
ret[bd.Target] = cti.TaskData[bd.Source];
}
else if (bd.BindType == DataBindingType.Literal)
{
ret[bd.Target] = bd.Source;
}
else if (bd.BindType == DataBindingType.Expr)
{
string k = DslUtil.TaskVarInBindingKey(childTask.Id, bd.Target);
if (!_pd._variableBinds.ContainsKey(k))
{
throw new Exception("Fail: missing delegate: " + k);
}
ret[bd.Target] = _pd._variableBinds[k]();
}
}
}
}
return(ret);
}
public bool EvalFlowCondition(TaskInstance ti, ProcessModel.FlowDef fd, ITaskExecutionContext ctx)
{
_pd.SetTaskInstanceInfo(ti, ctx);
string k = DslUtil.FlowConditionKey(fd.Parent.Id, fd.From, fd.To);
if (!_pd._flowConditions.ContainsKey(k))
{
throw new Exception("!no flow cond..");
}
_pd.SetTaskInstanceInfo(ti, ctx);
return(_pd._flowConditions[k]());
}
protected void flow_condition(Func <bool> cond, string condString)
{
if (_curFlow != null)
{
_curFlow.InputCondition = condString;
_flowConditions[DslUtil.FlowConditionKey(_currentCompositeTask.Id, _curFlow.From, _curFlow.To)] = cond;
}
else
{
throw new Exception();
}
}
public Dictionary <string, object> GatherOutputData(TaskInstance ti, ITaskExecutionContext ctx)
{
_pd.SetTaskInstanceInfo(ti, ctx);
string ks = DslUtil.TaskScriptKey(ti.TaskId, "_variableUpdateOnComplete");
if (_pd._taskScripts.ContainsKey(ks))
{
_pd._taskScripts[ks]();
}
var td = _def.GetRequiredTask(ti.TaskId);
foreach (var bd in td.OutputParameterBindings)
{
string k = DslUtil.TaskParamOutBindingKey(td.Id, bd.Target);
if (bd.BindType == DataBindingType.Expr)
{
ti.TaskData[bd.Target] = _pd._variableBinds[k]();
}
else if (bd.BindType == DataBindingType.CopyVar)
{
var pi = ti.GetType().GetProperty(bd.Source);
if (pi == null)
{
throw new NGinnBPM.ProcessModel.Exceptions.TaskParameterInvalidException(bd.Source, "Property not found: " + bd.Source).SetTaskId(ti.TaskId);
}
ti.TaskData[bd.Target] = pi.GetValue(ti, null);
}
else if (bd.BindType == DataBindingType.Literal)
{
ti.TaskData[bd.Target] = bd.Source; //todo: type convert
}
else
{
throw new Exception();
}
}
string k2 = DslUtil.TaskOutputDataBindingKey(td.Id);
if (_pd._variableBinds.ContainsKey(k2))
{
SC.IDictionary dic = (SC.IDictionary)_pd._variableBinds[k2]();
return(ToTaskData(dic));
}
Dictionary <string, object> ret = new Dictionary <string, object>();
foreach (var vd in td.Variables.Where(x => x.VariableDir == ProcessModel.Data.VariableDef.Dir.Out || x.VariableDir == ProcessModel.Data.VariableDef.Dir.InOut))
{
ret[vd.Name] = ti.TaskData[vd.Name];
}
return(ret);
}
public void ExecuteChildTaskOutputDataBinding(CompositeTaskInstance ti, TaskDef childTask, Dictionary <string, object> childOutputData, ITaskExecutionContext ctx)
{
if (string.IsNullOrEmpty(ti.InstanceId) ||
string.IsNullOrEmpty(ti.TaskId) ||
string.IsNullOrEmpty(ti.ProcessDefinitionId) ||
string.IsNullOrEmpty(ti.ProcessInstanceId))
{
throw new Exception("Task not inited properly");
}
_pd.SetTaskInstanceInfo(ti, ctx);
_pd.SetOutputData(childOutputData);
var ctd = childTask.Parent;
if (childTask.AutoBindVariables && ctd.Variables != null)
{
foreach (var vd in ctd.Variables)
{
if (childOutputData.ContainsKey(vd.Name))
{
ti.TaskData[vd.Name] = childOutputData[vd.Name];
}
}
}
if (childTask.OutputDataBindings != null)
{
foreach (var bd in childTask.OutputDataBindings)
{
switch (bd.BindType)
{
case DataBindingType.CopyVar:
ti.TaskData[bd.Target] = childOutputData[bd.Source];
break;
case DataBindingType.Literal:
ti.TaskData[bd.Target] = bd.Source;
break;
case DataBindingType.Expr:
string k = DslUtil.TaskVarOutBindingKey(childTask.Id, bd.Target);
if (!_pd._variableBinds.ContainsKey(k))
{
throw new Exception("!");
}
ti.TaskData[bd.Target] = _pd._variableBinds[k]();
break;
}
}
}
}
protected void add_output_binding(string destinationVariable, Func <object> expression, string codeString)
{
var b = new DataBindingDef
{
BindType = DataBindingType.Expr,
Source = codeString,
Target = destinationVariable
};
var k = DslUtil.TaskVarOutBindingKey(_curTask != null ? _curTask.Id : _currentCompositeTask.Id, destinationVariable);
_variableBinds[k] = expression;
if (_curTask != null)
{
_curTask.AddOutputDataBinding(b);
}
else if (_currentCompositeTask != null)
{
_currentCompositeTask.AddOutputDataBinding(b);
}
}
public void InitializeNewTask(TaskInstance ti, Dictionary <string, object> inputData, ITaskExecutionContext ctx)
{
if (string.IsNullOrEmpty(ti.InstanceId) ||
string.IsNullOrEmpty(ti.TaskId) ||
string.IsNullOrEmpty(ti.ProcessDefinitionId) ||
string.IsNullOrEmpty(ti.ProcessInstanceId))
{
throw new Exception("Task not inited properly");
}
_pd.SetTaskInstanceInfo(ti, ctx);
TaskDef td = _def.GetRequiredTask(ti.TaskId);
if (td.Variables != null)
{
foreach (var vd in td.Variables)
{
if (vd.VariableDir == ProcessModel.Data.VariableDef.Dir.In ||
vd.VariableDir == ProcessModel.Data.VariableDef.Dir.InOut)
{
if (inputData.ContainsKey(vd.Name))
{
ti.TaskData[vd.Name] = inputData[vd.Name];
}
}
if (!ti.TaskData.ContainsKey(vd.Name))
{
var k = DslUtil.TaskVariableDefaultKey(td.Id, vd.Name);
if (_pd._variableBinds.ContainsKey(k))
{
ti.TaskData[vd.Name] = _pd._variableBinds[k]();
}
else if (!string.IsNullOrEmpty(vd.DefaultValueExpr))
{
ti.TaskData[vd.Name] = vd.DefaultValueExpr; //TODO: add type conversion
}
else if (vd.IsRequired)
{
throw new NGinnBPM.ProcessModel.Exceptions.DataValidationException("Required variable missing: " + vd.Name).SetTaskId(ti.TaskId).SetProcessDef(ti.ProcessDefinitionId);
}
}
}
}
//now initialize task parameters
if (td.InputParameterBindings != null)
{
foreach (var bd in td.InputParameterBindings)
{
var pi = ti.GetType().GetProperty(bd.Target);
if (pi == null)
{
throw new NGinnBPM.ProcessModel.Exceptions.TaskParameterInvalidException(bd.Target, "Property not found: " + bd.Target).SetTaskId(ti.TaskId);
}
string k = DslUtil.TaskParamInBindingKey(td.Id, bd.Target);
if (bd.BindType == DataBindingType.Expr)
{
pi.SetValue(ti, _pd._variableBinds[k](), null);
}
else if (bd.BindType == DataBindingType.CopyVar)
{
pi.SetValue(ti, ti.TaskData.ContainsKey(bd.Source) ? ti.TaskData[bd.Source] : null, null);
}
else if (bd.BindType == DataBindingType.Literal)
{
pi.SetValue(ti, Convert.ChangeType(bd.Source, pi.PropertyType), null);
}
else
{
throw new Exception();
}
}
}
string ks = DslUtil.TaskScriptKey(ti.TaskId, "_paramInit");
if (_pd._taskScripts.ContainsKey(ks))
{
_pd._taskScripts[ks]();
}
}
public IEnumerable <Dictionary <string, object> > PrepareMultiInstanceTaskInputData(CompositeTaskInstance cti, TaskDef childTask, ITaskExecutionContext ctx)
{
if (!childTask.IsMultiInstance)
{
throw new Exception();
}
var k = DslUtil.TaskMultiInstanceSplitKey(childTask.Id);
Func <object> fun = _pd._variableBinds[k];
if (fun == null)
{
throw new Exception();
}
_pd.SetTaskInstanceInfo(cti, ctx);
SC.IEnumerable enu;
var val = fun();
enu = val is SC.IEnumerable ? (SC.IEnumerable)val : new object[] { val };
List <Dictionary <string, object> > ret = new List <Dictionary <string, object> >();
foreach (object item in enu)
{
if (item is Dictionary <string, object> )
{
ret.Add((Dictionary <string, object>)item);
}
else if (item is SC.IDictionary)
{
ret.Add(ToTaskData((SC.IDictionary)item));
}
else
{
throw new Exception();
}
}
return(ret);
/*
* ITaskScript scr = Context.ScriptManager.GetTaskScript(this.ParentProcess, taskId);
* Task tsk = MyTask.RequireTask(taskId);
* scr.TaskContext = Context;
* Dictionary<string, object> srcData = new Dictionary<string, object>(TaskData);
* scr.SourceData = srcData;
* object obj = scr.EvalMultiInstanceSplitQuery();
* IEnumerable enu;
* if (obj is IEnumerable)
* enu = (IEnumerable)obj;
* else
* {
* ArrayList al = new ArrayList();
* al.Add(obj);
* enu = al;
* }
* List<Dictionary<string, object>> lst = new List<Dictionary<string, object>>();
*
* foreach (object v in enu)
* {
* srcData[tsk.MultiInstanceItemAlias] = v;
* lst.Add(ExecuteInputDataBindings(scr, tsk));
* }
* return lst;
*/
throw new NotImplementedException();
}
