Coverage for lib/ansible/plugins/filter/json_query.py : 46%

# (c) 2015, Filipe Niero Felisbino <filipenf@gmail.com> 

# 

# This file is part of Ansible 

# 

# Ansible is free software: you can redistribute it and/or modify 

# it under the terms of the GNU General Public License as published by 

# the Free Software Foundation, either version 3 of the License, or 

# (at your option) any later version. 

# 

# Ansible is distributed in the hope that it will be useful, 

# but WITHOUT ANY WARRANTY; without even the implied warranty of 

# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the 

# GNU General Public License for more details. 

# 

# You should have received a copy of the GNU General Public License 

# along with Ansible. If not, see <http://www.gnu.org/licenses/>. 

from __future__ import (absolute_import, division, print_function) 

__metaclass__ = type 

from ansible.errors import AnsibleError, AnsibleFilterError 

try: 

import jmespath 

HAS_LIB = True 

except ImportError: 

HAS_LIB = False 

def json_query(data, expr): 

'''Query data using jmespath query language ( http://jmespath.org ). Example: 

- debug: msg="{{ instance | json_query(tagged_instances[*].block_device_mapping.*.volume_id') }}" 

''' 

if not HAS_LIB: 

raise AnsibleError('You need to install "jmespath" prior to running ' 

'json_query filter') 

try: 

return jmespath.search(expr, data) 

except jmespath.exceptions.JMESPathError as e: 

raise AnsibleFilterError('JMESPathError in json_query filter plugin:\n%s' % e) 

except Exception as e: 

# For older jmespath, we can get ValueError and TypeError without much info. 

raise AnsibleFilterError('Error in jmespath.search in json_query filter plugin:\n%s' % e) 

class FilterModule(object): 

''' Query filter ''' 

def filters(self): 

return { 

'json_query': json_query 

}