Current File : //usr/lib/python2.7/site-packages/salt/output/json_out.py
# -*- coding: utf-8 -*-
'''
Display return data in JSON format
==================================
:configuration: The output format can be configured in two ways:
Using the ``--out-indent`` CLI flag and specifying a positive integer or a
negative integer to group JSON from each minion to a single line.
Or setting the ``output_indent`` setting in the Master or Minion
configuration file with one of the following values:
* ``Null``: put each minion return on a single line.
* ``pretty``: use four-space indents and sort the keys.
* An integer: specify the indentation level.
Salt's outputters operate on a per-minion basis. Each minion return will be
output as a single JSON object once it comes in to the master.
Some JSON parsers can guess when an object ends and a new one begins but many
can not. A good way to differentiate between each minion return is to use the
single-line output format and to parse each line individually. Example output
(truncated)::
{"dave": {"en0": {"hwaddr": "02:b0:26:32:4c:69", ...}}}
{"jerry": {"en0": {"hwaddr": "02:26:ab:0d:b9:0d", ...}}}
{"kevin": {"en0": {"hwaddr": "02:6d:7f:ce:9f:ee", ...}}}
{"mike": {"en0": {"hwaddr": "02:48:a2:4b:70:a0", ...}}}
{"phill": {"en0": {"hwaddr": "02:1d:cc:a2:33:55", ...}}}
{"stuart": {"en0": {"hwaddr": "02:9a:e0:ea:9e:3c", ...}}}
'''
from __future__ import absolute_import, print_function, unicode_literals
# Import python libs
import logging
# Import Salt libs
import salt.utils.json
# Import 3rd-party libs
from salt.ext import six
log = logging.getLogger(__name__)
# Define the module's virtual name
__virtualname__ = 'json'
def __virtual__():
'''
Rename to json
'''
return __virtualname__
def output(data, **kwargs): # pylint: disable=unused-argument
'''
Print the output data in JSON
'''
try:
if 'output_indent' not in __opts__:
return salt.utils.json.dumps(data, default=repr, indent=4)
indent = __opts__.get('output_indent')
sort_keys = False
if indent is None:
indent = None
elif indent == 'pretty':
indent = 4
sort_keys = True
elif isinstance(indent, int):
if indent >= 0:
indent = indent
else:
indent = None
return salt.utils.json.dumps(data, default=repr, indent=indent, sort_keys=sort_keys)
except UnicodeDecodeError as exc:
log.error('Unable to serialize output to json')
return salt.utils.json.dumps(
{'error': 'Unable to serialize output to json',
'message': six.text_type(exc)}
)
except TypeError:
log.debug('An error occurred while outputting JSON', exc_info=True)
# Return valid JSON for unserializable objects
return salt.utils.json.dumps({})
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