applied the except and raise fixers to the master branch to close the gap with py3
[nepi.git] / src / nepi / resources / omf / application.py
index 6ce9923..03db088 100644 (file)
@@ -3,9 +3,8 @@
 #    Copyright (C) 2013 INRIA
 #
 #    This program is free software: you can redistribute it and/or modify
-#    it under the terms of the GNU General Public License as published by
-#    the Free Software Foundation, either version 3 of the License, or
-#    (at your option) any later version.
+#    it under the terms of the GNU General Public License version 2 as
+#    published by the Free Software Foundation;
 #
 #    This program is distributed in the hope that it will be useful,
 #    but WITHOUT ANY WARRANTY; without even the implied warranty of
 # Author: Alina Quereilhac <alina.quereilhac@inria.fr>
 #         Julien Tribino <julien.tribino@inria.fr>
 
+from __future__ import print_function
+
+import os
+
+from nepi.util.timefuncs import tnow
 from nepi.execution.resource import ResourceManager, clsinit_copy, \
-        ResourceState, reschedule_delay
+        ResourceState
+from nepi.execution.trace import Trace, TraceAttr
 from nepi.execution.attribute import Attribute, Flags 
 from nepi.resources.omf.omf_resource import ResourceGateway, OMFResource
-from nepi.resources.omf.node import OMFNode
-from nepi.resources.omf.omf_api import OMFAPIFactory
+from nepi.resources.omf.node import OMFNode, confirmation_counter, reschedule_check
+from nepi.resources.omf.omf_api_factory import OMFAPIFactory
 
 from nepi.util import sshfuncs
 
@@ -36,37 +41,31 @@ class OMFApplication(OMFResource):
         :type ec: ExperimentController
         :param guid: guid of the RM
         :type guid: int
-        :param creds: Credentials to communicate with the rm (XmppClient)
-        :type creds: dict
-
-    .. note::
-
-       This class is used only by the Experiment Controller through the 
-       Resource Factory
 
     """
-    _rtype = "OMFApplication"
-    _authorized_connections = ["OMFNode"]
+    _rtype = "omf::Application"
+    _authorized_connections = ["omf::Node", "wilabt::sfa::Node"]
 
     @classmethod
     def _register_attributes(cls):
         """ Register the attributes of an OMF application
 
         """
-        appid = Attribute("appid", "Name of the application")
-        path = Attribute("path", "Path of the application")
-        args = Attribute("args", "Argument of the application")
+        command = Attribute("command", "Command to execute")
         env = Attribute("env", "Environnement variable of the application")
+
+        # For OMF 5:
+        appid = Attribute("appid", "Name of the application")
         stdin = Attribute("stdin", "Input of the application", default = "")
         sources = Attribute("sources", "Sources of the application", 
-                     flags = Flags.ExecReadOnly)
+                     flags = Flags.Design)
         sshuser = Attribute("sshUser", "user to connect with ssh", 
-                     flags = Flags.ExecReadOnly)
+                     flags = Flags.Design)
         sshkey = Attribute("sshKey", "key to use for ssh", 
-                     flags = Flags.ExecReadOnly)
+                     flags = Flags.Design)
+
         cls._register_attribute(appid)
-        cls._register_attribute(path)
-        cls._register_attribute(args)
+        cls._register_attribute(command)
         cls._register_attribute(env)
         cls._register_attribute(stdin)
         cls._register_attribute(sources)
@@ -85,32 +84,60 @@ class OMFApplication(OMFResource):
         """
         super(OMFApplication, self).__init__(ec, guid)
 
+        self.set('command', "")
         self.set('appid', "")
-        self.set('path', "")
-        self.set('args', "")
+        self._path= ""
+        self._args = ""
         self.set('env', "")
 
         self._node = None
 
         self._omf_api = None
+        self._topic_app = None
+        self.create_id = None
+        self._create_cnt = 0
+        self._start_cnt = 0
+        self.release_id = None
+        self._release_cnt = 0
+
+        # For performance tests
+        self.begin_deploy_time = None
+        self.begin_start_time = None
+        self.begin_release_time = None
+        self.dperf = True
+        self.sperf = True
+        self.rperf = True
 
         self.add_set_hook()
 
+    def _init_command(self):
+        comm = self.get('command').split(' ')
+        self._path= comm[0]
+        if len(comm)>1:
+            self._args = ' '.join(comm[1:])
+
     @property
     def exp_id(self):
         return self.ec.exp_id
 
     @property
     def node(self):
-        rm_list = self.get_connected(OMFNode.rtype())
+        rm_list = self.get_connected(OMFNode.get_rtype())
         if rm_list: return rm_list[0]
         return None
 
     def stdin_hook(self, old_value, new_value):
+        """ Set a hook to the stdin attribute in order to send a message at each time
+        the value of this parameter is changed. Used ofr OMF 5.4 only
+
+        """
         self._omf_api.send_stdin(self.node.get('hostname'), new_value, self.get('appid'))
         return new_value
 
     def add_set_hook(self):
+        """ Initialize the hooks for OMF 5.4 only
+
+        """
         attr = self._attrs["stdin"]
         attr.set_hook = self.stdin_hook
 
@@ -124,10 +151,10 @@ class OMFApplication(OMFResource):
 
         """
         rm = self.ec.get_resource(guid)
-        if rm.rtype() not in self._authorized_connections:
+        if rm.get_rtype() not in self._authorized_connections:
             msg = ("Connection between %s %s and %s %s refused: "
                     "An Application can be connected only to a Node" ) % \
-                (self.rtype(), self._guid, rm.rtype(), guid)
+                (self.get_rtype(), self._guid, rm.get_rtype(), guid)
             self.debug(msg)
 
             return False
@@ -135,14 +162,14 @@ class OMFApplication(OMFResource):
         elif len(self.connections) != 0 :
             msg = ("Connection between %s %s and %s %s refused: "
                     "This Application is already connected" ) % \
-                (self.rtype(), self._guid, rm.rtype(), guid)
+                (self.get_rtype(), self._guid, rm.get_rtype(), guid)
             self.debug(msg)
 
             return False
 
         else :
             msg = "Connection between %s %s and %s %s accepted" % (
-                    self.rtype(), self._guid, rm.rtype(), guid)
+                    self.get_rtype(), self._guid, rm.get_rtype(), guid)
             self.debug(msg)
 
             return True
@@ -150,61 +177,183 @@ class OMFApplication(OMFResource):
     def do_deploy(self):
         """ Deploy the RM. It means nothing special for an application 
         for now (later it will be upload sources, ...)
-        It becomes DEPLOYED after getting the xmpp client.
+        It becomes DEPLOYED after the topic for the application has been created
 
         """
+        if not self.node or self.node.state < ResourceState.READY:
+            self.debug("---- RESCHEDULING DEPLOY ---- node state %s "
+                       % self.node.state )
+            self.ec.schedule(self.reschedule_delay, self.deploy)
+            return
 
-        self.set('xmppSlice',self.node.get('xmppSlice'))
-        self.set('xmppHost',self.node.get('xmppHost'))
+        ## For performance test
+        if self.dperf:
+            self.begin_deploy_time = tnow()
+            self.dperf = False
+
+        self._init_command()
+
+        self.set('xmppUser',self.node.get('xmppUser'))
+        self.set('xmppServer',self.node.get('xmppServer'))
         self.set('xmppPort',self.node.get('xmppPort'))
         self.set('xmppPassword',self.node.get('xmppPassword'))
+        self.set('version',self.node.get('version'))
 
-        if not (self.get('xmppSlice') and self.get('xmppHost')
-              and self.get('xmppPort') and self.get('xmppPassword')):
-            msg = "Credentials are not initialzed. XMPP Connections impossible"
+        if not self.get('xmppServer'):
+            msg = "XmppServer is not initialzed. XMPP Connections impossible"
             self.error(msg)
-            raise RuntimeError, msg
+            raise RuntimeError(msg)
+
+        if not (self.get('xmppUser') or self.get('xmppPort') 
+                   or self.get('xmppPassword')):
+            msg = "Credentials are not all initialzed. Default values will be used"
+            self.warn(msg)
+
+        if not self.get('command') :
+            msg = "Application's Command is not initialized"
+            self.error(msg)
+            raise RuntimeError(msg)
 
         if not self._omf_api :
-            self._omf_api = OMFAPIFactory.get_api(self.get('xmppSlice'), 
-                self.get('xmppHost'), self.get('xmppPort'), 
-                self.get('xmppPassword'), exp_id = self.exp_id)
+            self._omf_api = OMFAPIFactory.get_api(self.get('version'), 
+              self.get('xmppServer'), self.get('xmppUser'), self.get('xmppPort'),
+               self.get('xmppPassword'), exp_id = self.exp_id)
+
+        if self.get('version') == "5":
 
-        if self.get('sources'):
-            gateway = ResourceGateway.AMtoGateway[self.get('xmppHost')]
-            user = self.get('sshUser') or self.get('xmppSlice')
-            dst = user + "@"+ gateway + ":"
-            (out, err), proc = sshfuncs.rcopy(self.get('sources'), dst)
+            self.begin_deploy_time = tnow()
+
+            if self.get('sources'):
+                gateway = ResourceGateway.AMtoGateway[self.get('xmppServer')]
+                user = self.get('sshUser') or self.get('xmppUser')
+                dst = user + "@"+ gateway + ":"
+                (out, err), proc = sshfuncs.rcopy(self.get('sources'), dst)
+        else :
+            # For OMF 6 :
+            if not self.create_id:
+                props = {}
+                if self.get('command'):
+                    props['application:binary_path'] = self.get('command')
+                    props['application:hrn'] = self.get('command')
+                    props['application:membership'] = self._topic_app
+                props['application:type'] = "application"
+    
+                self.create_id = os.urandom(16).encode('hex')
+                self._omf_api.frcp_create( self.create_id, self.node.get('hostname'), "application", props = props)
+   
+            if self._create_cnt > confirmation_counter:
+                msg = "Couldn't retrieve the confirmation of the creation"
+                self.error(msg)
+                raise RuntimeError(msg)
+
+            uid = self.check_deploy(self.create_id)
+            if not uid:
+                self._create_cnt +=1
+                self.ec.schedule(reschedule_check, self.deploy)
+                return
+
+            self._topic_app = uid
+            self._omf_api.enroll_topic(self._topic_app)
 
         super(OMFApplication, self).do_deploy()
 
+    def check_deploy(self, cid):
+        """ Check, through the mail box in the parser, 
+        if the confirmation of the creation has been received
+
+        :param cid: the id of the original message
+        :type guid: string
+
+        """
+        uid = self._omf_api.check_mailbox("create", cid)
+        if uid : 
+            return uid
+        return False
+
+    def trace(self, name, attr = TraceAttr.ALL, block = 512, offset = 0):
+        self.info("Retrieving '%s' trace %s " % (name, attr))
+        if name == 'stdout' :
+            suffix = '.out'
+        elif name == 'stderr' :
+            suffix = '.err'
+        else :
+            suffix = '.misc'
+
+        trace_path = '/tmp/'+ self._topic_app + suffix
+
+        if attr == TraceAttr.PATH:
+            return trace_path
+
+        if attr == TraceAttr.ALL:
+            try:
+                with open(trace_path ,'r') as f:
+                    return f.read()
+            except IOError:
+                print("File with traces has not been found")
+                return False
+
+
     def do_start(self):
         """ Start the RM. It means : Send Xmpp Message Using OMF protocol 
          to execute the application. 
-         It becomes STARTED before the messages are sent (for coordination)
 
         """
-        if not (self.get('appid') and self.get('path')) :
-            msg = "Application's information are not initialized"
-            self.error(msg)
-            raise RuntimeError, msg
+        ## For performance test
+        if self.sperf:
+            self.begin_start_time = tnow()
+            self.sperf = False
 
-        if not self.get('args'):
-            self.set('args', " ")
         if not self.get('env'):
             self.set('env', " ")
 
-        # Some information to check the information in parameter
-        msg = " " + self.rtype() + " ( Guid : " + str(self._guid) +") : " + \
-            self.get('appid') + " : " + self.get('path') + " : " + \
-            self.get('args') + " : " + self.get('env')
-        self.info(msg)
+        if self.get('version') == "5":
+            self.begin_start_time = tnow()
+            # Some information to check the command for OMF5
+            msg = " " + self.get_rtype() + " ( Guid : " + str(self._guid) +") : " + \
+                self.get('appid') + " : " + self._path + " : " + \
+                self._args + " : " + self.get('env')
+            self.debug(msg)
 
-        self._omf_api.execute(self.node.get('hostname'),self.get('appid'), \
-            self.get('args'), self.get('path'), self.get('env'))
+            self._omf_api.execute(self.node.get('hostname'),self.get('appid'), \
+                self._args, self._path, self.get('env'))
+        else:
+            #For OMF 6
+            if self._start_cnt == 0:
+                props = {}
+                props['state'] = "running"
+    
+                guards = {}
+                guards['type'] = "application"
+                guards['name'] = self.get('command')
+
+                self._omf_api.frcp_configure(self._topic_app, props = props, guards = guards )
+
+            if self._start_cnt > confirmation_counter:
+                msg = "Couldn't retrieve the confirmation that the application started"
+                self.error(msg)
+                raise RuntimeError(msg)
+
+            res = self.check_start(self._topic_app)
+            if not res:
+                self._start_cnt +=1
+                self.ec.schedule(reschedule_check, self.start)
+                return
 
         super(OMFApplication, self).do_start()
 
+    def check_start(self, uid):
+        """ Check, through the mail box in the parser, 
+        if the confirmation of the start has been received
+
+        :param uid: the id of the original message
+        :type guid: string
+
+        """
+        res = self._omf_api.check_mailbox("started", uid)
+        if res : 
+            return True
+        return False
+
     def do_stop(self):
         """ Stop the RM. It means : Send Xmpp Message Using OMF protocol to 
         kill the application. 
@@ -212,17 +361,59 @@ class OMFApplication(OMFResource):
 
         """
 
-        self._omf_api.exit(self.node.get('hostname'),self.get('appid'))
+
+        if self.get('version') == 5:
+            self._omf_api.exit(self.node.get('hostname'),self.get('appid'))
         super(OMFApplication, self).do_stop()
 
+    def check_release(self, cid):
+        """ Check, through the mail box in the parser, 
+        if the confirmation of the release has been received
+
+        :param cid: the id of the original message
+        :type guid: string
+
+        """
+        res = self._omf_api.check_mailbox("release", cid)
+        if res : 
+            return res
+        return False
+
     def do_release(self):
         """ Clean the RM at the end of the experiment and release the API.
 
         """
+        ## For performance test
+        if self.rperf:
+            self.begin_release_time = tnow()
+            self.rperf = False
+
         if self._omf_api:
-            OMFAPIFactory.release_api(self.get('xmppSlice'), 
-                self.get('xmppHost'), self.get('xmppPort'), 
-                self.get('xmppPassword'), exp_id = self.exp_id)
+            if self.get('version') == "6" and self._topic_app:
+                if not self.release_id:
+                    self.release_id = os.urandom(16).encode('hex')
+                    self._omf_api.frcp_release( self.release_id, self.node.get('hostname'),self._topic_app, res_id=self._topic_app)
+    
+                if self._release_cnt < confirmation_counter:
+                    cid = self.check_release(self.release_id)
+                    if not cid:
+                        self._release_cnt +=1
+                        self.ec.schedule(reschedule_check, self.release)
+                        return
+                else:
+                    msg = "Couldn't retrieve the confirmation of the release"
+                    self.error(msg)
+
+                # Remove the stdout and stderr of the application
+                try:
+                    os.remove('/tmp/'+self._topic_app +'.out')
+                    os.remove('/tmp/'+self._topic_app +'.err')
+                except OSError:
+                    pass
+
+            OMFAPIFactory.release_api(self.get('version'), 
+              self.get('xmppServer'), self.get('xmppUser'), self.get('xmppPort'),
+               self.get('xmppPassword'), exp_id = self.exp_id)
 
         super(OMFApplication, self).do_release()