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