class VatExecutor(object):
-
def __init__(self):
self._stdout = None
self._stderr = None
logger.trace("stdout: '{0}'".format(self._stdout))
logger.trace("stderr: '{0}'".format(self._stderr))
- # TODO: download vpe_api_test output file
+ # TODO: download vpp_api_test output file
# self._delete_files(node, remote_file_path, remote_file_out)
- def execute_script_json_out(self, vat_name, node, timeout=10,):
+ def execute_script_json_out(self, vat_name, node, timeout=10):
self.execute_script(vat_name, node, timeout, json_out=True)
self._stdout = cleanup_vat_json_output(self._stdout)
- def _delete_files(self, node, *files):
+ @staticmethod
+ def _delete_files(node, *files):
ssh = SSH()
ssh.connect(node)
files = " ".join([str(x) for x in files])
def cmd_from_template(node, vat_template_file, **vat_args):
"""Execute VAT script on specified node. This method supports
script templates with parameters
- :param node: node in topology on witch the scrtipt is executed
+ :param node: node in topology on witch the script is executed
:param vat_template_file: template file of VAT script
:param vat_args: arguments to the template file
:return: list of json objects returned by VAT
"""
- vat = VatTerminal(node)
- ret = vat.vat_terminal_exec_cmd_from_template(vat_template_file,
- **vat_args)
- vat.vat_terminal_close()
- return ret
+ with VatTerminal(node) as vat:
+ return vat.vat_terminal_exec_cmd_from_template(vat_template_file,
+ **vat_args)
@staticmethod
def copy_config_to_remote(node, local_path, remote_path):
"""VAT interactive terminal
:param node: Node to open VAT terminal on.
+ :param json_param: Defines if outputs from VAT are in JSON format.
+ Default is True.
+ :type node: dict
+ :type json_param: bool
+
"""
__VAT_PROMPT = "vat# "
__LINUX_PROMPT = ":~$ "
- def __init__(self, node):
+ def __init__(self, node, json_param=True):
+ json_text = ' json' if json_param else ''
+ self.json = json_param
self._ssh = SSH()
self._ssh.connect(node)
self._tty = self._ssh.interactive_terminal_open()
self._ssh.interactive_terminal_exec_command(
self._tty,
- 'sudo -S {vat} json'.format(vat=Constants.VAT_BIN_NAME),
+ 'sudo -S {}{}'.format(Constants.VAT_BIN_NAME, json_text),
self.__VAT_PROMPT)
+ def __enter__(self):
+ return self
+
+ def __exit__(self, exc_type, exc_val, exc_tb):
+ self.vat_terminal_close()
+
def vat_terminal_exec_cmd(self, cmd):
"""Execute command on the opened VAT terminal.
:param cmd: Command to be executed.
- :return: Command output in python representation of JSON format.
+ :return: Command output in python representation of JSON format or
+ None if not in JSON mode.
"""
- logger.debug("Executing command in VAT terminal: {}".format(cmd));
+ logger.debug("Executing command in VAT terminal: {}".format(cmd))
out = self._ssh.interactive_terminal_exec_command(self._tty,
cmd,
self.__VAT_PROMPT)
- logger.debug("VAT output: {}".format(out));
- json_out = json.loads(out)
- return json_out
+ logger.debug("VAT output: {}".format(out))
+ if self.json:
+ json_out = json.loads(out)
+ return json_out
+ else:
+ return None
def vat_terminal_close(self):
"""Close VAT terminal."""