src/nepi/resources/linux/ccn/ccnpingserver.py

   1 #
   2 #    NEPI, a framework to manage network experiments
   3 #    Copyright (C) 2013 INRIA
   4 #
   5 #    This program is free software: you can redistribute it and/or modify
   6 #    it under the terms of the GNU General Public License as published by
   7 #    the Free Software Foundation, either version 3 of the License, or
   8 #    (at your option) any later version.
   9 #
  10 #    This program is distributed in the hope that it will be useful,
  11 #    but WITHOUT ANY WARRANTY; without even the implied warranty of
  12 #    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  13 #    GNU General Public License for more details.
  14 #
  15 #    You should have received a copy of the GNU General Public License
  16 #    along with this program.  If not, see <http://www.gnu.org/licenses/>.
  17 #
  18 # Author: Alina Quereilhac <alina.quereilhac@inria.fr>
  19
  20 from nepi.execution.attribute import Attribute, Flags, Types
  21 from nepi.execution.resource import ResourceManager, clsinit_copy, \
  22         ResourceState
  23 from nepi.resources.linux.ccn.ccnapplication import LinuxCCNApplication
  24 from nepi.util.timefuncs import tnow, tdiffsec
  25
  26 import os
  27
  28 @clsinit_copy
  29 class LinuxCCNPingServer(LinuxCCNApplication):
  30     _rtype = "LinuxCCNPingServer"
  31
  32     @classmethod
  33     def _register_attributes(cls):
  34         daemon = Attribute("d",
  35             "Run ccnping server as a daemon in background",
  36             type = Types.Bool,
  37             default = False,
  38             flags = Flags.Design)
  39
  40         freshness = Attribute("x",
  41             "Set FreshnessSeconds",
  42             type = Types.Integer,
  43             flags = Flags.Design)
  44
  45         prefix = Attribute("prefix",
  46             "Prefix to serve content (e.g. ccnx:/name/prefix)",
  47             flags = Flags.Design)
  48
  49         cls._register_attribute(daemon)
  50         cls._register_attribute(freshness)
  51         cls._register_attribute(prefix)
  52
  53     def __init__(self, ec, guid):
  54         super(LinuxCCNPingServer, self).__init__(ec, guid)
  55         self._home = "ccnping-serv-%s" % self.guid
  56
  57     def do_deploy(self):
  58         if not self.get("command"):
  59             self.set("command", self._start_command)
  60
  61         if not self.get("env"):
  62             self.set("env", self._environment)
  63
  64         if not self.get("depends"):
  65             self.set("depends", self._dependencies)
  66
  67         if not self.get("build"):
  68             self.set("build", self._build)
  69
  70         if not self.get("install"):
  71             self.set("install", self._install)
  72
  73         super(LinuxCCNPingServer, self).do_deploy()
  74
  75     @property
  76     def _start_command(self):
  77         args = []
  78         args.append("ccnpingserver")
  79         args.append(self.get("prefix"))
  80         if self.get("d") == True:
  81             args.append("-d")
  82         if self.get("x"):
  83             args.append("-x %d" % self.get("x"))
  84
  85         command = " ".join(args)
  86
  87         return command
  88
  89     @property
  90     def _dependencies(self):
  91         return "git"
  92
  93     @property
  94     def _build(self):
  95         return (
  96             # Evaluate if ccnx binaries are already installed
  97             " ( "
  98                 " test -f ${BIN}/ccnping && "
  99                 " echo 'binaries found, nothing to do' "
 100             " ) || ( "
 101             # If not, untar and build
 102                 " ( "
 103                     " git clone git://github.com/NDN-Routing/ccnping ${SRC}/ccnping "
 104                  " ) && "
 105                     # build
 106                     "cd ${SRC}/ccnping && "
 107                     " ( "
 108                     " ./configure LDFLAGS=-L${SRC}/ccnx-0.7.2/lib CFLAGS=-I${SRC}/ccnx-0.7.2/include "
 109                     " --prefix=${BIN}/ccnping && make "
 110                     " ) "
 111              " )")
 112
 113     @property
 114     def _install(self):
 115         return (
 116             # Evaluate if ccnx binaries are already installed
 117             " ( "
 118                 " test -f ${BIN}/ccnping && "
 119                 " echo 'binaries found, nothing to do' "
 120             " ) || ( "
 121             # If not, install
 122                 "  mkdir -p ${BIN}/ccnping && "
 123                 "  mv ${SRC}/ccnping/ccnping ${BIN}/ccnping/ && "
 124                 "  mv ${SRC}/ccnping/ccnpingserver ${BIN}/ccnping/ "
 125             " )"
 126             )
 127
 128     @property
 129     def _environment(self):
 130         return "%s:%s" % (self.ccnd.path, "${BIN}/ccnping")
 131
 132     def valid_connection(self, guid):
 133         # TODO: Validate!
 134         return True
 135