def rename_volume(self, lv_name, new_name):
"Change the name of an existing volume."
try:
self.cmd.execute('lvrename', self.vg_name, lv_name, new_name)
except Exception, e:
raise CustomException("Error: %s" % str(e))
class Http :
def __init__(self) :
self.http_headers = {"User-Agent": "Mozilla/5.0 (Windows; U; Windows NT 5.1; zh-CN; rv:1.9.1) Gecko/20090624 Firefox/3.5",
"Accept": "text/html"}
self.timeout = 30
self.readTimeout = 50
socket.setdefaulttimeout(10.0)
#get方式提交
def doGet(self, url, params, accept="text/html") :
_url = ""
if params not in (None, ''):
_params = urllib.urlencode(params)
if '?' in url > 0 :
_url = "%s&%s" % (url,_params)
else :
_url = "%s?%s" % (url,_params)
else :
_url = url
try:
#time.sleep(self.readTimeout)
req = urllib2.Request(_url, headers=self.http_headers)
req.add_header('Accept', accept)
req.get_method = lambda: 'GET'
page = urllib2.urlopen(req)#, timeout=self.timeout)
code = page.getcode()
ret_data = page.read()
return ret_data
except urllib2.HTTPError, e:
raise CustomException(e)
except urllib2.URLError, e:
raise CustomException(e)
def vg_size(self):
"Return: vg totle_size ;vg free_size"
try:
out = self.cmd.execute("vgs | grep %s | awk {'print $6,$7'} " %
self.vg_name)
except Exception, e:
raise CustomException("Error: %s" % str(e))
def __init__(self, confFile):
if not os.path.isfile(confFile):
raise CustomException("The file %s does not exist!" % confFile)
self.confFile = confFile
self.config = ConfigParser()
#self.config.readfp(codecs.open(confFile, 'r',"utf_16"))
self.config.read(confFile)
def remove_volume(self, lv_dir):
"""Creates a logical volume on the object's VG.
param lv_dir: Name to lv dir
"""
try:
self.cmd.execute('lvremove', '-f', lv_dir)
except Exception, e:
raise CustomException("Error: %s" % str(e))
def create_volume(self, name, size):
"""Creates a logical volume on the object's VG.
param name: Name to use when creating Logical Volume
param size: Size to use when creating Logical Volume
"""
try:
self.cmd.execute('lvcreate', '-n', name, self.vg_name, '-L', size)
except Exception, e:
raise CustomException("Error: %s" % str(e))
def extend_volume(self, lv_name, new_size):
"Extend the size of an existing volume."
try:
self.cmd.execute(
'lvextend',
'-L',
new_size,
'%s/%s' % (self.vg_name, lv_name),
)
except Exception, e:
raise CustomException("Error: %s" % str(e))
def create_table(self, sql):
'''创建数据库表：student'''
if sql is not None and sql != '':
if SHOW_SQL:
print('执行sql:[{0}]'.format(sql))
self.cu.execute(sql)
self.conn.commit()
if SHOW_SQL:
print('创建数据库表[student]成功!')
else:
raise CustomException(
'the [{0}] is empty or equal None!'.format(sql))
def save(self, sql, data):
'''插入数据'''
if sql is not None and sql != '':
if data is not None:
for d in data:
if SHOW_SQL:
print('执行sql:[{0}],参数:[{1}]'.format(sql, d))
self.cu.execute(sql, d)
self.conn.commit()
else:
raise CustomException(
'the [{0}] is empty or equal None!'.format(sql))
def get_lvm_version(self):
"""Static method to get LVM version from system.
:param root_helper: root_helper to use for execute
:returns: version 3-tuple
"""
try:
out = self.cmd.execute('env', 'LC_ALL=C', 'vgs', '--version')
except Exception, e:
raise CustomException("Error: %s" % str(e))
def drop_table(self, table):
'''如果表存在,则删除表，如果表中存在数据的时候，使用该
方法的时候要慎用！'''
if table is not None and table != '':
sql = 'DROP TABLE IF EXISTS ' + table
if SHOW_SQL:
print('执行sql:[{0}]'.format(sql))
self.cu.execute(sql)
self.conn.commit()
if SHOW_SQL:
print('删除数据库表[{0}]成功!'.format(table))
else:
raise CustomException('table is empty or equal None!')
def get_lvm_path(self, lv_name):
"""Static method to get LVM version from system.
:param root_helper: root_helper to use for execute
:returns: lvm path
"""
try:
cmd = ('lvdisplay | grep "LV Path" | grep %s | awk %s' %
(lv_name + '$', ' \'{print $3}\' '))
out = os.popen(cmd, 'r').readline()
#out = self.cmd.execute('lvdisplay | grep "LV Path" | grep %s | awk %s'%(lv_name+'$',' \'{print $3}\' '))
except Exception, e:
raise CustomException("Error: %s" % str(e))
def get_all_physical_volumes(self, vg_name=None):
"""Static method to get all PVs on a system.
:param root_helper: root_helper to use for execute
:param vg_name: optional, gathers info for only the specified VG
:returns: List of Dictionaries with PV info
"""
try:
out = self.cmd.execute('env', 'LC_ALL=C', 'pvs', '--noheadings',
'--unit=g', '-o', 'vg_name,name,size,free',
'--separator', ':', '--nosuffix')
except Exception, e:
raise CustomException("Error: %s" % str(e))
def doPost(self, url, params, accept="text/plain") :
_params = {}
if params not in (None, ''):
_params = urllib.urlencode(params)
try:
req = urllib2.Request(url, data=_params, headers=self.http_headers)
req.add_header('Accept', accept)
req.get_method = lambda: 'POST'
page = urllib2.urlopen(req,timeout=self.timeout)
code = page.getcode()
ret_data = page.read()
return ret_data
except urllib2.HTTPError, e:
raise CustomException(e)
def __init__(self, dbFile):
'''获取到数据库的连接对象，参数为数据库文件的绝对路径
如果传递的参数是存在，并且是文件，那么就返回硬盘上面改
路径下的数据库文件的连接对象；否则，返回内存中的数据接
连接对象'''
conn = sqlite3.connect(dbFile)
if os.path.exists(dbFile) and os.path.isfile(dbFile):
if SHOW_SQL:
print('硬盘上面:[{0}]'.format(dbFile))
self.conn = conn
'''该方法是获取数据库的游标对象，参数为数据库的连接对象
如果数据库的连接对象不为None，则返回数据库连接对象所创
建的游标对象；否则返回一个游标对象，该对象是内存中数据
库连接对象所创建的游标对象'''
self.cu = conn.cursor()
else:
raise CustomException("The file %s create failed!" % dbFile)
def fetchone(self, sql, data):
'''查询一条数据'''
if sql is not None and sql != '':
if data is not None:
#Do this instead
d = (data, )
if SHOW_SQL:
print('执行sql:[{0}],参数:[{1}]'.format(sql, data))
self.cu.execute(sql, d)
r = self.cu.fetchall()
if len(r) > 0:
for e in range(len(r)):
return (r[e])
else:
print('the [{0}] equal None!'.format(data))
else:
raise CustomException(
'the [{0}] is empty or equal None!'.format(sql))
def fetchall(self, sql, data=None):
'''查询所有数据'''
reslut = []
if sql is not None and sql != '':
if SHOW_SQL:
print('执行sql:[{0}]'.format(sql))
if data is None:
self.cu.execute(sql)
else:
self.cu.execute(sql, data)
r = self.cu.fetchall()
if len(r) > 0:
for e in range(len(r)):
reslut.append(r[e])
return reslut
else:
raise CustomException(
'the [{0}] is empty or equal None!'.format(sql))
def get_all_volumes(self, vg_name=None):
"""Static method to get all LV's on a system.
:param vg_name: optional, gathers info for only the specified VG
:returns: List of Dictionaries with LV info
"""
try:
if vg_name is not None:
out = self.cmd.execute('env', 'LC_ALL=C', 'lvs',
'--noheadings', '--unit=g', '-o',
'vg_name,name,size', '--nosuffix',
vg_name)
else:
out = self.cmd.execute('env', 'LC_ALL=C', 'lvs',
'--noheadings', '--unit=g', '-o',
'vg_name,name,size', '--nosuffix')
except Exception, e:
raise CustomException("Error: %s" % str(e))
def doGet(self, url, params, accept="text/html") :
_url = ""
if params not in (None, ''):
_params = urllib.urlencode(params)
if '?' in url > 0 :
_url = "%s&%s" % (url,_params)
else :
_url = "%s?%s" % (url,_params)
else :
_url = url
try:
#time.sleep(self.readTimeout)
req = urllib2.Request(_url, headers=self.http_headers)
req.add_header('Accept', accept)
req.get_method = lambda: 'GET'
page = urllib2.urlopen(req)#, timeout=self.timeout)
code = page.getcode()
ret_data = page.read()
return ret_data
except urllib2.HTTPError, e:
raise CustomException(e)
if params not in (None, ''):
_params = urllib.urlencode(params)
try:
req = urllib2.Request(url, data=_params, headers=self.http_headers)
req.add_header('Accept', accept)
req.get_method = lambda: 'POST'
page = urllib2.urlopen(req,timeout=self.timeout)
code = page.getcode()
ret_data = page.read()
return ret_data
except urllib2.HTTPError, e:
raise CustomException(e)
except urllib2.URLError, e:
raise CustomException(e)
except socket.timeout, e:
raise CustomReqTimeoutException(e)
def download(self, url, fileName, params=None) :
try:
_url = ""
if params not in (None, ''):
_params = urllib.urlencode(params)
if '?' in url > 0 :
_url = "%s&%s" % (url,_params)
else :
_url = "%s?%s" % (url,_params)
else :
_url = url
#print _url
def create_vg(self, vg_name, pv_list):
"Create volume group."
try:
self.cmd.execute('vgcreate', self.vg_name, ' '.join(pv_list))
except Exception, e:
raise CustomException("Error: %s" % str(e))