First commit

system/project.py

@@ -0,0 +1,49 @@
+#import logger 
+import dataset
+
+class Project:
+    def __init__(self,name="Testing"):
+        self.name = name
+        self.dim_names = []
+        self._selection_observers = []
+        self.current_selection = {}
+        self.current_data=[]
+        self.datasets=[]
+        
+    def attach(self, observer):
+        if not observer in self._selection_observers:
+            self._selection_observers.append(observer)
+
+    def detach(self, observer):
+       try:
+           self.selection_observers.remove(observer)
+       except ValueError:
+           pass
+
+    def notify(self, modifier=None):
+        for observer in self.selection_observers:
+            if modifier != observer:
+                observer.update(self)
+
+    def set_selection(self,dim_name,selection):
+        current_selection = set(selection)
+        self.current_selection[dim_name] = current_selection
+        self.notify()
+
+    def get_selection(self,sel_obj):
+        return sel_obj.current_selection
+
+    
+    def add_dataset(self,dataset):
+        self.datasets.append(dataset)
+        for dim_name in dataset.ids.keys():
+            if dim_name not in self.dim_names:
+                self.dim_names.append(dim_name)
+
+    def suggest_dim_name(self,dim_name):
+        if dim_name in self.dim_names:
+            dim_name = dim_name + "_t" 
+        return dim_name
+        
+            
+c_p = Project()