Commiting improvements to Collector. Local_dir added to ExperimentController

[nepi.git] / src / nepi / resources / all / collector.py

diff --git a/src/nepi/resources/all/collector.py b/src/nepi/resources/all/collector.py
index 6101cdd..792e25f 100644 (file)
--- a/src/nepi/resources/all/collector.py
+++ b/src/nepi/resources/all/collector.py
@@ -19,16 +19,16 @@
 
 from nepi.execution.attribute import Attribute, Flags, Types
 from nepi.execution.trace import Trace, TraceAttr
-from nepi.execution.resource import ResourceManager, clsinit, ResourceState, \
-        ResourceAction
+from nepi.execution.resource import ResourceManager, clsinit_copy, \
+        ResourceState, ResourceAction
 from nepi.util.sshfuncs import ProcStatus
 
 import os
 import tempfile
 
-@clsinit
+@clsinit_copy
 class Collector(ResourceManager):
-    """ The collector is reponsible of collecting traces
+    """ The collector entity is reponsible of collecting traces
     of a same type associated to RMs into a local directory.
 
     .. class:: Class Args :
@@ -37,26 +37,29 @@ class Collector(ResourceManager):
         :type ec: ExperimentController
         :param guid: guid of the RM
         :type guid: int
-        :param creds: Credentials to communicate with the rm (XmppClient)
-        :type creds: dict
 
     """
     _rtype = "Collector"
+    _help = "A Collector can be attached to a trace name on another " \
+        "ResourceManager and will retrieve and store the trace content " \
+        "in a local file at the end of the experiment"
+    _backend_type = "all"
 
     @classmethod
     def _register_attributes(cls):
-        trace_name = Attribute("traceName", "Name of the trace to be collected", 
-                flags = Flags.ExecReadOnly)
-        store_dir = Attribute("storeDir", "Path to local directory to store trace results", 
-                default = tempfile.gettempdir(),
-                flags = Flags.ExecReadOnly)
-        sub_dir = Attribute("subDir", "Sub directory to collect traces into", 
-                flags = Flags.ExecReadOnly)
-        rename = Attribute("rename", "Name to give to the collected trace file", 
-                flags = Flags.ExecReadOnly)
+        trace_name = Attribute("traceName", 
+                "Name of the trace to be collected", 
+                flags = Flags.Design)
+
+        sub_dir = Attribute("subDir", 
+                "Sub directory to collect traces into", 
+                flags = Flags.Design)
+
+        rename = Attribute("rename", 
+                "Name to give to the collected trace file", 
+                flags = Flags.Design)
 
         cls._register_attribute(trace_name)
-        cls._register_attribute(store_dir)
         cls._register_attribute(sub_dir)
         cls._register_attribute(rename)
 
@@ -67,8 +70,8 @@ class Collector(ResourceManager):
     @property
     def store_path(self):
         return self._store_path
-    
-    def provision(self):
+   
+    def do_provision(self):
         trace_name = self.get("traceName")
         if not trace_name:
             self.fail()
@@ -77,15 +80,14 @@ class Collector(ResourceManager):
             self.error(msg)
             raise RuntimeError, msg
 
-        store_dir = self.get("storeDir")
-        self._store_path = os.path.join(store_dir, self.ec.exp_id, self.ec.run_id)
+        self._store_path = self.ec.run_dir
 
         subdir = self.get("subDir")
         if subdir:
-            self._store_path = os.path.join(self._store_path, subdir)
+            self._store_path = os.path.join(self.store_path, subdir)
         
         msg = "Creating local directory at %s to store %s traces " % (
-            store_dir, trace_name)
+                self.store_path, trace_name)
         self.info(msg)
 
         try:
@@ -93,19 +95,15 @@ class Collector(ResourceManager):
         except OSError:
             pass
 
-        super(Collector, self).provision()
+        super(Collector, self).do_provision()
 
-    def deploy(self):
-        try:
-            self.discover()
-            self.provision()
-        except:
-            self.fail()
-            raise
+    def do_deploy(self):
+        self.do_discover()
+        self.do_provision()
 
-        super(Collector, self).deploy()
+        super(Collector, self).do_deploy()
 
-    def release(self):
+    def do_release(self):
         trace_name = self.get("traceName")
         rename = self.get("rename") or trace_name
 
@@ -123,12 +121,14 @@ class Collector(ResourceManager):
                 f.write(result)
                 f.close()
             except:
+                import traceback
+                err = traceback.format_exc()
                 msg = "Couldn't retrieve trace %s for %d at %s " % (trace_name, 
                         rm.guid, fpath)
-                self.error(msg)
+                self.error(msg, out = "", err = err)
                 continue
 
-        super(Collector, self).release()
+        super(Collector, self).do_release()
 
     def valid_connection(self, guid):
         # TODO: Validate!