old_contents: # Copyright 2019 The resource-policy-evaluation-library Authors. All rights reserved.
  #
  # Licensed under the Apache License, Version 2.0 (the "License");
  # you may not use this file except in compliance with the License.
  # You may obtain a copy of the License at
  #
  #    http://www.apache.org/licenses/LICENSE-2.0
  #
  # Unless required by applicable law or agreed to in writing, software
  # distributed under the License is distributed on an "AS IS" BASIS,
  # WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
  # See the License for the specific language governing permissions and
  # limitations under the License.
  
  
  from .engines import OpenPolicyAgent
  from .engines import PythonPolicyEngine
  
  
  class RPE:
  
      def __init__(self, config):
          self.policy_engines = []
  
          for pe_config in config['policy_engines']:
              self._add_policy_engine(pe_config)
  
      def _add_policy_engine(self, pe_config):
          if pe_config.get('type') == 'opa':
              engine = OpenPolicyAgent(pe_config['url'])
          elif pe_config.get('type') == 'python':
              engine = PythonPolicyEngine(pe_config['path'])
          else:
              raise AttributeError("Unrecognized policy engine configuration")
  
          self.policy_engines.append(engine)
  
      def get_configured_policies(self):
          policies = {}
          for pe in self.policy_engines:
              policies[str(pe)] = pe.configured_policies()
  
          return policies
  
      def violations(self, resource):
          violations = []
          for pe in self.policy_engines:
              for v in pe.violations(resource):
                  violations.append((pe, v))
  
          return violations
  
new_contents: # Copyright 2019 The resource-policy-evaluation-library Authors. All rights reserved.
  #
  # Licensed under the Apache License, Version 2.0 (the "License");
  # you may not use this file except in compliance with the License.
  # You may obtain a copy of the License at
  #
  #    http://www.apache.org/licenses/LICENSE-2.0
  #
  # Unless required by applicable law or agreed to in writing, software
  # distributed under the License is distributed on an "AS IS" BASIS,
  # WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
  # See the License for the specific language governing permissions and
  # limitations under the License.
  
  
  from .engines import OpenPolicyAgent
  from .engines import PythonPolicyEngine
  
  
  class RPE:
  
      def __init__(self, config):
          self.policy_engines = []
  
          for pe_config in config['policy_engines']:
              self._add_policy_engine(pe_config)
  
      def _add_policy_engine(self, pe_config):
          if pe_config.get('type') == 'opa':
              engine = OpenPolicyAgent(pe_config['url'])
          elif pe_config.get('type') == 'python':
              engine = PythonPolicyEngine(pe_config['path'])
          else:
              raise AttributeError("Unrecognized policy engine configuration")
  
          self.policy_engines.append(engine)
  
      def get_configured_policies(self):
          '''Get all configured policies across all engines'''
          policies = {}
          for pe in self.policy_engines:
              policies[str(pe)] = pe.configured_policies()
  
          return policies
  
      def violations(self, resource):
          violations = []
          for pe in self.policy_engines:
              for v in pe.violations(resource):
                  violations.append((pe, v))
  
          return violations
  
      def policies(self, resource):
          '''Get all policies that apply to the given resource'''
          policies = []
          for pe in self.policy_engine:
              policies.extend(pe.policies(resource))
  
          return policies
  
subject: Add per-resource policy retrieval