+++ /dev/null
-# -*- coding: utf-8 -*-
-
-##
-# Copyright 2015 Telefónica Investigación y Desarrollo, S.A.U.
-# This file is part of openvim
-# All Rights Reserved.
-#
-# Licensed under the Apache License, Version 2.0 (the "License"); you may
-# not use this file except in compliance with the License. You may obtain
-# a copy of the License at
-#
-# http://www.apache.org/licenses/LICENSE-2.0
-#
-# Unless required by applicable law or agreed to in writing, software
-# distributed under the License is distributed on an "AS IS" BASIS, WITHOUT
-# WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. See the
-# License for the specific language governing permissions and limitations
-# under the License.
-#
-# For those usages not covered by the Apache License, Version 2.0 please
-# contact with: nfvlabs@tid.es
-##
-
-'''
-Common usuful functions
-'''
-
-__author__="Alfonso Tierno, Pablo Montes"
-__date__ ="$10-jul-2014 12:07:15$"
-
-
-import yaml
-import paramiko
-from definitionsClass import definitionsClass
-from definitionsClass import Units
-import random
-from jsonschema import validate as js_v, exceptions as js_e
-
-def check_and_convert_units(value, value_type):
- """TODO: Update description
- This method receives a text with 2 fields using a blank as separator and a list of valid units. The first field must represent a number
- and the second one units.
- In case the second field is not one of valid_units (False, <error description>) is returned.
- In case the second field is a valid unit the first number is converted in the following way:
- Gbps, Mbps, kbps -> Mbps
- GB,MB,KB,B,GiB,MiB,KiB -> B
- GHz,MHz,KHz,Hz -> Hz
- If conversion is done successfully (True, <converted value>) is returned"""
- try:
- if value_type == Units.no_units:
- if not isinstance(value,int) and not isinstance(value,float):
- return (False, 'When no units are used only an integer or float must be used')
- elif value_type == Units.name:
- if not isinstance(value,str):
- return (False, 'For names str must be used')
- elif value_type == Units.boolean:
- if not isinstance(value,bool):
- return (False, 'A boolean or Yes/No mut be used')
- else:
- splitted = value.split(' ')
- if len(splitted) != 2:
- return (False, 'Expected format: <value> <units>')
- (value, units) = splitted
- if ',' in value or '.' in value:
- return (False, 'Use integers to represent numeric values')
-
- value = int(value)
-
-# if not isinstance(value_type, Units):
-# return (False, 'Not valid value_type')
-
- valid_units = definitionsClass.units[value_type]
-
- #Convert everything to upper in order to make comparations easier
- units = units.upper()
- for i in range(0, len(valid_units)):
- valid_units[i] = valid_units[i].upper()
-
- #Check the used units are valid ones
- if units not in valid_units:
- return (False, 'Valid units are: '+', '.join(valid_units))
-
- if units.startswith('GI'):
- value = value *1024*1024*1024
- elif units.startswith('MI'):
- value = value *1024*1024
- elif units.startswith('KI'):
- value = value *1024
- elif units.startswith('G'):
- value = value *1000000000
- elif units.startswith('M'):
- value = value *1000000
- elif units.startswith('K'):
- value = value *1000
- except Exception,e:
- return (False, 'Unexpected error in auxiliary_functions.py - check_and_convert_units:\n'+str(e))
-
- return (True, value)
-
-def get_ssh_connection(machine, user=None, password=None):
- """Stablishes an ssh connection to the remote server. Returns (True, paramiko_ssh) in case of success or (False, <error message>) in case of error"""
- try:
- s = paramiko.SSHClient()
- s.set_missing_host_key_policy(paramiko.AutoAddPolicy())
- s.load_system_host_keys()
- s.connect(machine, 22, user, password, timeout=10)
- except Exception,e:
- return (False, 'It was not possible to connect to '+machine+str(e))
-
- return (True, s)
-
-def run_in_remote_server(s,command):
- """Runs in the remote server the specified command. Returns (True, stdout) in case of success or (False, <error message>) in case of error"""
- try:
- (_, stdout, stderr) = s.exec_command(command)
- error_msg = stderr.read()
- if len(error_msg) > 0:
- return (False, error_msg)
- except Exception,e:
- return (False, str(e))
-
- return (True, stdout)
-
-def read_file(file_):
- """Reads a file specified by 'file' and returns (True,<its content as a string>) in case of success or (False, <error message>) in case of failure"""
- try:
- f = open(file_, 'r')
- read_data = f.read()
- f.close()
- except Exception,e:
- return (False, str(e))
-
- return (True, read_data)
-
-def check_contains(element, keywords):
- """Auxiliary function used to check if a yaml structure contains or not
- an specific field. Returns a bool"""
- for key in keywords:
- if not key in element:
- return False
- return True
-
-def check_contains_(element, keywords):
- """Auxiliary function used to check if a yaml structure contains or not
- an specific field. Returns a bool,missing_variables"""
- for key in keywords:
- if not key in element:
- return False, key
- return True, None
-
-def write_file(file_, content):
- """Generates a file specified by 'file' and fills it using 'content'"""
- f = open(file_, 'w')
- f.write(content)
- f.close()
-
-def nice_print(yaml_element):
- """Print a yaml structure. Used mainly for debugging"""
- print(yaml.dump(yaml_element, default_flow_style=False))
-
-def new_random_mac():
- mac = (0xE2, random.randint(0x00, 0xff), random.randint(0x00, 0xff), random.randint(0x00, 0xff), random.randint(0x00, 0xff), random.randint(0x00, 0xff) )
- return ':'.join(map(lambda x: "%02X" % x, mac))
-
-def parse_dict(var, template):
- if type(var) is not dict: return -1, 'not a dictionary'
- for _,tv in template.items():
- if type(tv) is list:
- return
-
-def delete_nulls(var):
- if type(var) is dict:
- for k in var.keys():
- if var[k] is None: del var[k]
- elif type(var[k]) is dict or type(var[k]) is list or type(var[k]) is tuple:
- if delete_nulls(var[k]): del var[k]
- if len(var) == 0: return True
- elif type(var) is list or type(var) is tuple:
- for k in var:
- if type(k) is dict: delete_nulls(k)
- if len(var) == 0: return True
- return False
-
-def get_next_2pow(var):
- if var==0: return 0
- v=1
- while v<var: v=v*2
- return v
-
-def check_valid_uuid(uuid):
- id_schema = {"type" : "string", "pattern": "^[a-fA-F0-9]{8}(-[a-fA-F0-9]{4}){3}-[a-fA-F0-9]{12}$"}
- try:
- js_v(uuid, id_schema)
- return True
- except js_e.ValidationError:
- return False
-
-def DeleteNone(var):
- '''Removes recursively empty dictionaries or lists
- return True if var is an empty dict or list '''
- if type(var) is dict:
- for k in var.keys():
- if var[k] is None: del var[k]
- elif type(var[k]) is dict or type(var[k]) is list or type(var[k]) is tuple:
- if DeleteNone(var[k]): del var[k]
- if len(var) == 0: return True
- elif type(var) is list or type(var) is tuple:
- for k in var:
- if type(k) is dict: DeleteNone(k)
- if len(var) == 0: return True
- return False
-
-def gen_random_mac():
- '''generates a random mac address. Avoid multicast, broadcast, etc
- '''
- mac = (
- #52,54,00,
- #2 + 4*random.randint(0x00, 0x3f), #4 multiple, unicast local mac address
- 0x52,
- random.randint(0x00, 0xff),
- random.randint(0x00, 0xff),
- random.randint(0x00, 0xff),
- random.randint(0x00, 0xff),
- random.randint(0x00, 0xff)
- )
- return ':'.join(map(lambda x: "%02x" % x, mac))
-
projects / osm / openvim.git / blobdiff