def __init__(self, host, port, username = "", password = ""):
"""
"""
if not Validator.validate_non_empty_string(host):
raise InvalidParameterError("host", "Must be non-empty String")
if not Validator.validate_integer(port):
raise InvalidParameterError("port", "Must be an integer value")
if not Validator.validate_string(username):
raise InvalidParameterError("username", "Must be a string value")
if not Validator.validate_string(password):
raise InvalidParameterError("password", "Must be a string value")
super(SqlClient, self).__init__()
self.__host = host
self.__port = port
self.__username = username
self.__password = password
self.__platform = Platform.get_current()
def get_instance(cls, project, parameters):
"""
Creates an instance of a SshServer object and returns it.
@param project: An instance of a Project, sent as None the first time get_object is called when supposedly it is asked to create an instance of Project.
@param parameters: A dictionary of parameters that are sent to the constructor.
Expected keys are "id", "os" and "host".
Optional keys are "port", "username", "password", "certificate_file", "passphrase" and "root".
@return: An instance of SshServer
"""
parameters = project.process_node_parameters(
parameters,
["id", "host", "os"],
{"port": 22, "username": "", "password": "", "certificate_file" : "", "passphrase" : "", "root" : ""},
{"id": "variable_name", "host": "non_empty_string", "os" : "non_empty_string", "port": "integer", "username": "******", "password": "******", "certificate_file" : "string", "passphrase" : "string", "root" : "string"}
)
platform_instance = Platform.get_instance(parameters["os"])
return SshServer(parameters["id"], platform_instance, parameters["host"], parameters["port"], parameters["username"], parameters["password"], parameters["certificate_file"], parameters["passphrase"], parameters["root"])
def download(cls, url, destination, replace = False, retry = 1):
"""
downloads a file from the web
@param url: the url of the file to be downloaded
@param destination: the destination where the file will be downloaded to
@param replace: if set True then the downloaded file will replae any existinf file
@param retry: number of retries
@rtype: bool
@return: True on success
@raise FileDownloadError: if error during downloading
"""
if not Validator.validate(url, "url"):
raise InvalidParameterError("url", "should be a non-empty string starts with 'http://'")
if not Validator.validate(destination, "non_empty_string"):
raise InvalidParameterError('destination', 'should be non-empty string')
if not Validator.validate(replace, 'boolean'):
raise InvalidParameterError('replace', 'should be a boolean value')
if not Validator.validate(retry, 'integer'):
raise InvalidParameterError('getting', 'should be an integer value')
separator = Platform.get_current().get_separator()
if not (re.match(r'/', destination) or re.match(r'[a-zA-Z]:\\', destination)):
destination = destination.rstrip(separator)
while retry:
retry -= 1
try:
result = urllib2.urlopen(url, "")
if os.path.exists(destination):
if os.path.isdir(destination):
if result.headers.has_key('content-disposition'):
tmp = result.headers.dict['content-disposition']
index = tmp.find('filename=')
if index == -1:
name = 'attachment'
else:
name = tmp[index+9: ]
name = name.split(' ')[0]
else:
name = result.geturl()
name = name.split('?')[0]
name = name.rstrip('/')
index = name.rfind('/')
name = name[index+1:]
destination = destination + separator + name
else:
if os.path.isfile(destination):
if replace:
os.remove(destination)
else:
raise FileExistsError, 'the destination file already exists'
else:
raise FileExistsError, 'destination is non-file, system cannot replace a non file'
file = open(destination, "wb")
buffer = result.read(4096)
while len(buffer) != 0:
file.write(buffer)
buffer = result.read(4096)
file.close()
except Exception, e:
if retry == 0:
raise FileDownloadError, str(e)
else:
break
def __init__(self, root = ""): platform = Platform.get_current() super(LocalClient, self).__init__(platform, root)
