initial working test wf

fluents/workflow.py

@@ -85,45 +85,45 @@ class Workflow:
         print self.name
         for stage in self.stages:
             print '   %s' % stage.name
-            for fun in stage.functions:
+            for task in stage.tasks:
-                print '        %s' % fun.name
+                print '        %s' % task.name
 
 
 class EmptyWorkflow(Workflow):
     name = 'Empty Workflow'
 
     def __init__(self):
-        print "initing empty workflow"
+        logger.log("debug", "initing empty workflow")
         Workflow.__init__(self)
     
 
 class Stage:
     """A stage is a part of the data analysis process.
 
-    Each stage contains a set of functions that can be used to
+    Each stage contains a set of tasks that can be used to
     accomplish the task. A typical early stage is 'preprocessing', which
-    can be done in several ways, each represented by a function.
+    can be done in several ways, each represented by a task.
     """
 
     def __init__(self, id, name):
         self.id = id
         self.name = name
-        self.functions = []
+        self.tasks = []
-        self.functions_by_id = {}
+        self.tasks_by_id = {}
 
-    def add_function(self, fun):
+    def add_task(self, task):
-        self.functions.append(fun)
+        self.tasks.append(task)
-        self.functions_by_id[fun.id] = fun
+        #self.tasks_by_id[task.id] = task
 
 
 class Task:
-    """A Function object encapsulates a function on a data set.
+    """A Task object encapsulates a task on a data set.
 
-    Each Function instance encapsulates some function that can be applied
+    Each Task instance encapsulates some task that can be applied
     to one or more types of data.
     """
 
-    title = ""
+    name = ""
 
     def __init__(self, input):
         self.input = input
@@ -135,7 +135,7 @@ class Task:
 
     # just return a Validation object
     def validate_input(input):
-        return Validation(True,"Validation Not Implemented")
+        return Validation(True, "Validation Not Implemented")
 
     def run(self):
         print self.input
@@ -143,6 +143,7 @@ class Task:
     def show_options_gui(self, editable=False):
         pass
 
+
 class Validation:
     def __init__(self,result, reason):
         self.succeeded = result
@@ -168,12 +169,11 @@ class WorkflowView (gtk.VBox):
             btn_box.show()
             exp.add(btn_align)
             
-            # Add functions in each stage 
+            # Add tasks in each stage 
-            for fun in stage.functions:
+            for task in stage.tasks:
-                btn = gtk.Button(fun.name)
+                btn = gtk.Button(task.name)
                 btn.connect('clicked',
-                            lambda button, f=fun : self.run_function(f))
+                            lambda button, t=task : self.run_task(t))
-
                 btn_box.add(btn)
                 btn.show()
             
@@ -190,53 +190,27 @@ class WorkflowView (gtk.VBox):
         self.remove_workflow()
         self.setup_workflow(workflow)
 
-    def run_function(self, function):
+    def run_task(self, task):
-        logger.log('debug', 'Starting function: %s' % function.name)
+        logger.log('debug', 'Creating task: %s' % task.name)
         parent_data = main.project.current_data
+        task_instance = task(input=["hei"])
+        print task_instance.input
+        1/0
+        #validation  = task.validate_input()
 
-        validation  = function.validate_input()
+        #if not validation.succeeded:
+        #    logger.log('warning','Invalid Inputdata: ' + str(reason))
+        #    return
 
-        if not validation.succeeded:
+        #task_result = task.run(*parent_data)
-            logger.log('warning','Invalid Inputdata: ' + str(reason))
-            return
-
-        args, varargs, varkw, defaults = inspect.getargspec(function.run)
-
-        # first argument is 'self' and second should be the selection
-        # and we don't care about those...
-        args.remove('self')
-        if "selection" in args:
-            pass_selection = True
-            args.remove('selection')
-        else:
-            pass_selection = False
-
-        if varargs and len(parent_data) < len(args):
-            logger.log('warning', "Function requires minimum %d datasets selected." % len(args))
-            return
-        elif not varargs and args and len(args) != len(parent_data):
-            # functions requiring datasets have to have the right number
-            logger.log('warning', "Function requires %d datasets, but only %d selected." % (len(args), len(parent_data)))
-            return
-
-        if not args:
-            # we allow functions requiring no data to be run even if a
-            # dataset is is selected
-            data = []
-        else:
-            data = parent_data
-            
-        if pass_selection:
-            # if the function has a 'selection' argument, we pass in
-            # the selection
-            new_data = function.run(selection=main.project.get_selection(), *data)
-        else:
-            new_data = function.run(*data)
-            
-        if new_data != None:
-            main.project.add_data(parent_data, new_data, function.name)
         
-        logger.log('debug', 'Function ended: %s' % function.name)
+            
+        #if new_data != None:
+        #    main.project.add_data(parent_data, task_result, task.name)
+        #else:
+        #   logger.log('debug', 'Task gave no output: %s' % task.name) 
+        
+        logger.log('debug', 'Task ended: %s' % task.name)
 
 
 class Options(dict):
@@ -261,8 +235,8 @@ class Options(dict):
 class OptionsDialog(gtk.Dialog):
     """The basic input/output dialog box.
     
-    This defines the first page of the function options-gui.
+    This defines the first page of the task options-gui.
-    Any function that invokes a option-gui will inherit from this class.
+    Any task that invokes a option-gui will inherit from this class.
     """
     def __init__(self, data, options, input_names=['X','Y']):
         gtk.Dialog.__init__(self, 'Input-Output dialog',
@@ -454,12 +428,12 @@ class WorkflowMenu (gtk.Menu):
         stage_menu = gtk.Menu()
         stage_menu_item.set_submenu(stage_menu)
 
-        for fun in stage.functions:
+        for task in stage.tasks:
-            stage_menu.append(self._create_function_item(fun))
+            stage_menu.append(self._create_task_item(task))
         return stage_menu_item
 
-    def _create_function_item(self, function):
+    def _create_task_item(self, task):
-        menuitem = gtk.MenuItem(function.name)
+        menuitem = gtk.MenuItem(task.name)
         menuitem.show()
         return menuitem
 

workflows/test_workflow.py

@@ -12,19 +12,19 @@ class TestWorkflow (workflow.Workflow):
     ident = 'test'
     description = 'This workflow currently serves as a general testing workflow.'
 
-    def __init__(self, app):
+    def __init__(self):
-        workflow.Workflow.__init__(self, app)
+        workflow.Workflow.__init__(self)
 
         load = workflow.Stage('load', 'Test Data')
-        load.add_function(TestDataFunction())
+        load.add_task(TestDataTask)
         self.add_stage(load)
 
         
 class TestDataTask(workflow.Task):  
-    title = "Test data"
+    name = "Test data"
 
-    def __init__(self):
+    def __init__(self, input):
-        workflow.Task.__init__(self)
+        workflow.Task.__init__(self, input)
 
     def run(self):
         logger.log('notice', 'Injecting foo test data')