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1.1.3 Drools controller configuration

TODO

1.2 XACML XML

XACML Policy Designers can use a text or XML editor of their choice to design and test their XACML Policies. The Github:att/XACML project has tools and a GUI available for creating policies and testing those policies.

1.3 APEX JSON

APEX policy development includes three parts - develop the state machine transition using APEX language (i.e. .apex file), develop I/O event schema to each state (i.e. .avro files) and develop processing logic in each state/task (i.e. javascript files). APEX policy developer should follow best practices to develop APEX policies and submit for git review once they are done. Then APEX command line tool can be used to generate the executable JSON for PDP-A.

TBC with Apex team

2. Policy Lifecycle API CRUD Enhancements

Native policies can be supported by TOSCA policy type and policy. As for native Drools policy, since native DRL is packaged in JAR which has been deployed to nexus repo along with other dependency JARs, TOSCA policy for native DRL only needs to include the pointer for native JAR as well as necessary information being used by Drools PDP to instantiate a new controller instance with native DRL loaded into memory. Corresponding policy type should be defined and pre-loaded into policy framework so that TOSCA policy for native policy type can then be created off. As for native XACML policy, its contents are basically encoded in XML which is all XACML PDP needs to load into engine and run. Thus, TOSCA policy for native XACML only needs to include this XML content. An URL-encoded string can be created off composed XACML XML and is populated to a string property.

2.1 Native Drools Policy Support

2.1.1 Policy Type for Native Drools Policy

Below is the policy type defined to support native Drools policies.

Deploying a native policy to Drools PDP eseentially means assigning the policy to a Drools controller that manages the DRL rules and corresponding facts loading in desirable working memory. To avoid unnecessary fact/rule conflict, it might need to have separated working memory dedicated to the native policy required by certain use case. Hence, for some native policies (here, we assume one native policy could include multiple DRL rules), we need to instantiate independent Drools controller for each of them. Drools controller needs to be configured in terms of a custom controller name, source/sink topics, event serialization, serialization filter, etc. (more details will be presented in Sec.2.1.1). All these configurations are use case specific and can be specified in the native policy if policy designers have desirable configurations in mind already. Regarding other installation level configurations like dmaap server, aaf credentials, etc., they would be left in helm charts, instead of in native policy as they are applied over all use cases.

It is worthwhile to note that specifying Drools controller configuration in native policy is optional, which means it can be present or not. If they are not present, current native policy will be assigned to a default Drools controller that is specified in the helm charts and instantiated in Drools PDP when the PDP is up. If policy designers are aware of which existing Drools controller can work for the new native policy, they can specify the existing controller name only without replicating other configuration details. Alternatively, policy designers can also change the Drools controller configurations at runtime by calling exposed telemetry API, e.g. change a source/sink topic, if the current/default Drools controller setup cannot fit the needs.

1.2 XACML XML

XACML Policy Designers can use a text or XML editor of their choice to design and test their XACML Policies. The Github:att/XACML project has tools and a GUI available for creating policies and testing those policies.

1.3 APEX JSON

APEX policy development includes three parts - develop the state machine transition using APEX language (i.e. .apex file), develop I/O event schema to each state (i.e. .avro files) and develop processing logic in each state/task (i.e. javascript files). APEX policy developer should follow best practices to develop APEX policies and submit for git review once they are done. Then APEX command line tool can be used to generate the executable JSON for PDP-A.

The detailed documentation can be found here - https://onap.readthedocs.io/en/latest/submodules/policy/parent.git/docs/apex/apex.html

2. Policy Lifecycle API CRUD Enhancements

Native policies can be supported by TOSCA policy type and policy. As for native Drools policy, since native DRL is packaged in JAR which has been deployed to nexus repo along with other dependency JARs, TOSCA policy for native DRL only needs to include the pointer for native JAR as well as necessary information being used by Drools PDP to instantiate a new controller instance with native DRL loaded into memory. Corresponding policy type should be defined and pre-loaded into policy framework so that TOSCA policy for native policy type can then be created off. As for native XACML policy, its contents are basically encoded in XML which is all XACML PDP needs to load into engine and run. Thus, TOSCA policy for native XACML only needs to include this XML content. An URL-encoded string can be created off composed XACML XML and is populated to a string property.

2.1 Native Drools Policy Support

2.1.1 Policy Type for Native Drools Policy

Below is the policy type defined to support native Drools policies.

Code Block
languageyml
titlePolicy Type for Native Drools Policy
linenumberstrue
collapsetrue
tosca_definitions_version: tosca_simple_yaml_1_0_0
policy_types:
    onap.policies.Native:
        derived_from: tosca.policies.Root
        description: a base policy type for all native PDP policies
        version: 1.0.0
    onap.policies.native.Drools:
        derived_from: onap.policies.Native
Code Block
languageyml
titlePolicy Type for Native Drools Policy
linenumberstrue
collapsetrue
tosca_definitions_version: tosca_simple_yaml_1_0_0
policy_types:
    onap.policies.Native:
        derived_from: tosca.policies.Root
        description: a base policy type for all native PDP policies
        version: 1.0.0
    onap.policies.native.Drools:
        derived_from: onap.policies.Native
        description: a policy type for native drools policies
        version: 1.0.0
        properties:
            rule_artifact:
                type: onap.datatypes.native.rule_artifact
                required: true
                description: specifies rule artifact pointer
            drools_controller:
        description: a policy type for native drools  typepolicies
        version: onap1.datatypes.native.drools_controller0.0
        properties:
        required: true
    rule_artifact:
            description: specifies information for drools controller instantiation

data_types:
    type: onap.datatypes.native.rule_artifact:
        derived_from: tosca.datatypes.Root
        propertiesrequired:
            groupId: true
                typedescription: string
specifies rule               required: trueartifact pointer
            artifactIddrools_controller:
                type: stringonap.datatypes.native.drools_controller
                required: truefalse
            version:
     description: specifies information for drools       type: string
                required: truecontroller instantiation

data_types:
    onap.datatypes.native.droolsrule_controllerartifact:
        derived_from: tosca.datatypes.Root
        properties:
            controllerNamegroupId:
                type: string
                required: true
            sourceTopicsartifactId:
                type: liststring
                required: true
                entry_schemaversion:
                    type: onap.datatypes.native.dmaap_config
            sinkTopics:
                type: liststring
                required: true
                entry_schema:
                    type: onap.datatypes.native.dmaap_config
    onap.datatypes.native.dmaap_configdrools_controller:
        derived_from: tosca.datatypes.Root
        properties:
            topicNamecontrollerName:
                type: string
                required: true
            serializationisNewController:
                type: listboolean
                required: true
                entry_schemadescription:
 a flag to indicate if the controller is a new one to instantiate or not
       type: onap.datatypes.native.dmaap.serialization
    onap.datatypes.native.dmaap.serializationsourceTopics:
        derived_from: tosca.datatypes.Root
       type: properties:list
              eventCanonicalName  required: false
                type: string
entry_schema:
                    requiredtype: trueonap.datatypes.native.dmaap_config
            eventFiltersinkTopics:
                type: stringlist
                required: false
              customSerializer  entry_schema:
                    type: string
onap.datatypes.native.dmaap_config
    onap.datatypes.native.dmaap_config:
        derived_from: tosca.datatypes.Root
        requiredproperties: false

2.1.2 TOSCA Policy for Native Drools Rules

Below is an example of TOSCA policy for native Drools rules

Code Block
languageyml
titleExample TOSCA policy for native Drools rules
linenumberstrue
collapsetrue
tosca_definitions_version: tosca_simple_yaml_1_0_0
topology_template:
  policies:

        - 
    topicName:
    Example_policy_name:
            type: onap.policies.native.Drools
string
                versionrequired: 1.0.0true
            metadataserialization:
                policy-idtype: Example_policy_name
list
                propertiesrequired: true
                ruleentry_artifactschema:
                    groupIdtype: org.onap.policydatatypes.native.dmaap.serialization
                    artifactId: example_controllooponap.datatypes.native.dmaap.serialization:
                    versionderived_from: 1tosca.0datatypes.0-SNAPSHOTRoot
                drools_controllerproperties:
                    controllerName: example_controller_nameeventCanonicalName:
                    sourceTopicstype: string
                        -required: true
            eventFilter:
                topicNametype: POLICY_INPUTstring
                required: false
            serializationcustomSerializer:
                type: string
               - required: false

2.1.2 TOSCA Policy for Native Drools Rules

Below is an example of TOSCA policy for native Drools rules

Code Block
languageyml
titleExample TOSCA policy for native Drools rules
linenumberstrue
collapsetrue
tosca_definitions_version: tosca_simple_yaml_1_0_0
topology_template:
  policies:
    - 
        Example_policy_name:

                       type: onap.policies.native.Drools
            eventCanonicalNameversion: org1.onap.policy.controlloop.event.ControlLoopEvent0.0
            metadata:
                policy-id: Example_policy_name
       eventFilter: [?($.closedLoopControlName == 'example_controlloop_name')]    properties:
                rule_artifact:
                    customSerializergroupId: org.onap.policy.controlloop.utils.serializer,gsonnative
                        -artifactId: example_controlloop
                    version: 1.0.0-SNAPSHOT
       topicName: SDNR_TO_POLICY
        drools_controller:
                    serialization:controllerName: example_controller_name
                    isNewController: true
           - 
        sourceTopics: 
                           eventCanonicalName: org.onap.policy.controlloop.event.Response-
                            topicName: POLICY_INPUT
       eventFilter: [?($.closedLoopControlName == 'example_controlloop_name' && $.action == 'example_action')]
              serialization:
                      customSerializer: org.onap.policy.controlloop.utils.serializer,gson          - 
                    sinkTopics: 
               eventCanonicalName: org.onap.policy.controlloop.event.ControlLoopEvent
        -
                            topicName: POLICY_TO_SDNReventFilter: [?($.closedLoopControlName == 'example_controlloop_name')]
                            serialization:
        customSerializer: org.onap.policy.controlloop.utils.serializer,gson
                        - 
                            topicName: SDNR_TO_POLICY
       eventCanonicalName: org.onap.policy.controlloop.event.Request
                    serialization:
                eventFilter: [?($.closedLoopControlName == 'example_controlloop_name' && $.action == 'example_action')]            - 
                                    customSerializereventCanonicalName: org.onap.policy.controlloop.utils.serializer,gson

2.2 Native XACML Policy Support

2.2.1 Policy Type for Native XACML Policies

Below is the policy type defined to support native XACML policies.

Code Block
languageyml
titlePolicy Type for Native XACML Policy
linenumberstrue
collapsetrue
tosca_definitions_version: tosca_simple_yaml_1_0_0
policy_types:
event.Response
    onap.policies.Native:
        derived_from: tosca.policies.Root
        description: a base policy type for all native PDP policies
        versioneventFilter: 1.0.0
    onap.policies.native.Xacml:
[?($.closedLoopControlName == 'example_controlloop_name' && $.action == 'example_action')]
          derived_from: onap.policies.Native 
           description: a policy type for native xacml policies
        versioncustomSerializer: 1.0.0org.onap.policy.controlloop.utils.serializer,gson
        metadata:
            encodingsinkTopics: URL
            properties:
            policy:-
                type: String
           topicName: POLICY_TO_SDNR
    required: true
                description: The XML XACML 3.0 PolicySet or Policy

2.2.2 TOSCA Policy for Native XACML Rules

Below is an example of TOSCA policy for native XACML rules

Code Block
languageyml
titleExample TOSCA Policy for Native XACML rules
linenumberstrue
collapsetrue
tosca_definitions_version: tosca_simple_yaml_1_0_0
topology_template:
    policies:
 serialization:
                                - 
            usecase_foo_xacml_policy:
                        policyeventCanonicalName: org.onap.policy.controlloop.event.Request
                                    eventFilter: [?($.closedLoopControlName == 'example_controlloop_name' && $.action == 'example_action')]
                                    customSerializer: org.onap.policy.controlloop.utils.serializer,gson

2.2 Native XACML Policy Support

2.2.1 Policy Type for Native XACML Policies

Below is the policy type defined to support native XACML policies.

Code Block
languageyml
titlePolicy Type for Native XACML Policy
linenumberstrue
collapsetrue
tosca_definitions_version: tosca_simple_yaml_1_0_0
policy_types:
    onap.policies.Native:
        derived_from: tosca.policies.Root
        description: a base policy type for all native PDP policies
        version: 1.0.0
    onap.policies.native.Xacml:
        derived_from: onap.policies.Native
        description: a policy type for native xacml policies
        version: 1.0.0
        properties:
            policy:
                type: String
                required: true
                description: The XML XACML 3.0 PolicySet or Policy
                metadata:
                    encoding: URL

2.2.2 TOSCA Policy for Native XACML Rules

Below is an example of TOSCA policy for native XACML rules

Code Block
languageyml
titleExample TOSCA Policy for Native XACML rules
linenumberstrue
collapsetrue
tosca_definitions_version: tosca_simple_yaml_1_0_0
topology_template:
    policies:
        -
            usecase_foo_xacml_policy:
                policy: "%3CPolicy+xmlns%3D%22urn%3Aoasis%3Anames%3Atc%3Axacml%3A3.0%3Acore%3Aschema%3Awd-17%22+PolicyId%3D%22Test.policy%22+Version%3D%221%22+RuleCombiningAlgId%3D%22urn%3Aoasis%3Anames%3Atc%3Axacml%3A1.0%3Arule-combining-algorithm%3Afirst-applicable%22%3E%0D%0A++++%3CTarget%2F%3E%0D%0A++++%3CRule+RuleId%3D%22Test.policy%3Arule%22+Effect%3D%22Permit%22%3E%0D%0A++++++++%3CDescription%3EDefault+is+to+PERMIT+if+the+policy+matches.%3C%2FDescription%3E%0D%0A++++++++%3CTarget%3E%0D%0A++++++++++++"%3CPolicy+xmlns%3D%22urn%3Aoasis%3Anames%3Atc%3Axacml%3A3.0%3Acore%3Aschema%3Awd-17%22+PolicyId%3D%22Test.policy%22+Version%3D%221%22+RuleCombiningAlgId%3D%22urn%3Aoasis%3Anames%3Atc%3Axacml%3A1.0%3Arule-combining-algorithm%3Afirst-applicable%22%3E%0D%0A++++%3CTarget%2F%3E%0D%0A++++%3CRule+RuleId%3D%22Test.policy%3Arule%22+Effect%3D%22Permit%22%3E%0D%0A++++++++%3CDescription%3EDefault+is+to+PERMIT+if+the+policy+matches.%3C%2FDescription%3E%0D%0A++++++++%3CTarget%3E%0D%0A++++++++++++%3CAnyOf%3E%0D%0A++++++++++++++++%3CAllOf%3E%0D%0A++++++++++++++++++++%3CMatch+MatchId%3D%22urn%3Aoasis%3Anames%3Atc%3Axacml%3A1.0%3Afunction%3Astring-equal%22%3E%0D%0A++++++++++++++++++++++++%3CAttributeValue+DataType%3D%22http%3A%2F%2Fwww.w3.org%2F2001%2FXMLSchema%23string%22%3EI+should+be+matched%3C%2FAttributeValue%3E%0D%0A++++++++++++++++++++++++%3CAttributeDesignator+Category%3D%22urn%3Aoasis%3Anames%3Atc%3Axacml%3A3.0%3Aattribute-category%3Aresource%22+AttributeId%3D%22urn%3Aorg%3Aonap%3Amatchable%3AmatchableString%22+DataType%3D%22http%3A%2F%2Fwww.w3.org%2F2001%2FXMLSchema%23string%22+MustBePresent%3D%22false%22%2F%3E%0D%0A++++++++++++++++++++%3C%2FMatch%3E%0D%0A++++++++++++++++%3C%2FAllOf%3E%0D%0A++++++++++++%3C%2FAnyOf%3E%0D%0A++++++++++++%3CAnyOf%3E%0D%0A++++++++++++++++%3CAllOf%3E%0D%0A++++++++++++++++++++%3CMatch+MatchId%3D%22urn%3Aoasis%3Anames%3Atc%3Axacml%3A1.0%3Afunction%3Ainteger-equal%22%3E%0D%0A++++++++++++++++++++++++%3CAttributeValue+DataType%3D%22http%3A%2F%2Fwww.w3.org%2F2001%2FXMLSchema%23integer%22%3E1000%3C%2FAttributeValue%3E%0D%0A++++++++++++++++++++++++%3CAttributeDesignator+Category%3D%22urn%3Aoasis%3Anames%3Atc%3Axacml%3A3.0%3Aattribute-category%3Aresource%22+AttributeId%3D%22urn%3Aorg%3Aonap%3Amatchable%3AmatachableInteger%22+DataType%3D%22http%3A%2F%2Fwww.w3.org%2F2001%2FXMLSchema%23integer%22+MustBePresent%3D%22false%22%2F%3E%0D%0A++++++++++++++++++++%3C%2FMatch%3E%0D%0A++++++++++++++++%3C%2FAllOf%3E%0D%0A++++++++++++%3C%2FAnyOf%3E%0D%0A++++++++++++%3CAnyOf%3E%0D%0A++++++++++++++++%3CAllOf%3E%0D%0A++++++++++++++++++++%3CMatch+MatchId%3D%22urn%3Aoasis%3Anames%3Atc%3Axacml%3A1.0%3Afunction%3Adouble-equal%22%3E%0D%0A++++++++++++++++++++++++%3CAttributeValue+DataType%3D%22http%3A%2F%2Fwww.w3.org%2F2001%2FXMLSchema%23double%22%3E1.1%3C%2FAttributeValue%3E%0D%0A++++++++++++++++++++++++%3CAttributeDesignator+Category%3D%22urn%3Aoasis%3Anames%3Atc%3Axacml%3A3.0%3Aattribute-category%3Aresource%22+AttributeId%3D%22urn%3Aorg%3Aonap%3Amatchable%3AmatchableDouble%22+DataType%3D%22http%3A%2F%2Fwww.w3.org%2F2001%2FXMLSchema%23double%22+MustBePresent%3D%22false%22%2F%3E%0D%0A++++++++++++++++++++%3C%2FMatch%3E%0D%0A++++++++++++++++%3C%2FAllOf%3E%0D%0A++++++++++++%3C%2FAnyOf%3E%0D%0A++++++++++++%3CAnyOf%3E%0D%0A++++++++++++++++%3CAllOf%3E%0D%0A++++++++++++++++++++%3CMatch+MatchId%3D%22urn%3Aoasis%3Anames%3Atc%3Axacml%3A1.0%3Afunction%3Aboolean-equal%22%3E%0D%0A++++++++++++++++++++++++%3CAttributeValue+DataType%3D%22http%3A%2F%2Fwww.w3.org%2F2001%2FXMLSchema%23boolean%22%3Etrue%3C%2FAttributeValue%3E%0D%0A++++++++++++++++++++++++%3CAttributeDesignator+Category%3D%22urn%3Aoasis%3Anames%3Atc%3Axacml%3A3.0%3Aattribute-category%3Aresource%22+AttributeId%3D%22urn%3Aorg%3Aonap%3Amatchable%3AmatachableBoolean%22+DataType%3D%22http%3A%2F%2Fwww.w3.org%2F2001%2FXMLSchema%23boolean%22+MustBePresent%3D%22false%22%2F%3E%0D%0A++++++++++++++++++++%3C%2FMatch%3E%0D%0A++++++++++++++++%3C%2FAllOf%3E%0D%0A++++++++++++%3C%2FAnyOf%3E%0D%0A++++++++++++%3CAnyOf%3E%0D%0A++++++++++++++++%3CAllOf%3E%0D%0A++++++++++++++++++++%3CMatch+MatchId%3D%22urn%3Aoasis%3Anames%3Atc%3Axacml%3A1.0%3Afunction%3Astring-equal%22%3E%0D%0A++++++++++++++++++++++++%3CAttributeValue+DataType%3D%22http%3A%2F%2Fwww.w3.org%2F2001%2FXMLSchema%23string%22%3Ematch+A%3C%2FAttributeValue%3E%0D%0Aorg%2F2001%2FXMLSchema%23string%22%3EI+should+be+matched%3C%2FAttributeValue%3E%0D%0A++++++++++++++++++++++++%3CAttributeDesignator+Category%3D%22urn%3Aoasis%3Anames%3Atc%3Axacml%3A3.0%3Aattribute-category%3Aresource%22+AttributeId%3D%22urn%3Aorg%3Aonap%3Amatchable%3AmatchableListString%22AttributeId%3D%22urn%3Aorg%3Aonap%3Amatchable%3AmatchableString%22+DataType%3D%22http%3A%2F%2Fwww.w3.org%2F2001%2FXMLSchema%23string%22+MustBePresent%3D%22false%22%2F%3E%0D%0A++++++++++++++++++++%3C%2FMatch%3E%0D%0A++++++++++++++++%3C%2FAllOf%3E%0D%0A++++++++++++%3C%2FAnyOf%3E%0D%0A++++++++++++%3CAnyOf%3E%0D%0A++++++++++++++++%3CAllOf%3E%0D%0A++++++++++++++++++++%3CMatch+MatchId%3D%22urn%3Aoasis%3Anames%3Atc%3Axac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2%3E%0D%0A++++++++++++++++++++++++%3CAttributeValue+DataType%3D%22http%3A%2F%2Fwww.w3.org%2F2001%2FXMLSchema%23string%22%3Eonap.policies.Test%3C%2FAttributeValue%3E%0D%0Aorg%2F2001%2FXMLSchema%23string%22%3Ematch+B%3C%2FAttributeValue%3E%0D%0A++++++++++++++++++++++++%3CAttributeDesignator+Category%3D%22urn%3Aoasis%3Anames%3Atc%3Axacml%3A3.0%3Aattribute-category%3Aresource%22+AttributeId%3D%22urn%3Aorg%3Aonap%3Apolicy-type%22AttributeId%3D%22urn%3Aorg%3Aonap%3Amatchable%3AmatchableListString%22+DataType%3D%22http%3A%2F%2Fwww.w3.org%2F2001%2FXMLSchema%23string%22+MustBePresent%3D%22false%22%2F%3E%0D%0A++++++++++++++++++++%3C%2FMatch%3E%0D%0A++++++++++++++++%3C%2FAllOf%3E%0D%0A++++++++++++%3C%2FAnyOf%3E%0D%0A++++++++%3C%2FTarget%3E%0D%0A+++++%3C%2FRule%3E%0D%0A+++%3CCondition%3E%0D%0A+%3CObligationExpressions%3E%0D%0A++++++++%3CObligationExpression+ObligationId%3D%22urn%3Aorg%3Aonap%3Arest%3Abody%22+FulfillOn%3D%22Permit%22%3E%0D%0A+%3CApply+FunctionId%3D%22urn%3Aoasis%3Anames%3Atc%3Axacml%3A1.0%3Afunction%3Aor%22%3E%0D%0A++++++++++%3CAttributeAssignmentExpression+AttributeId%3D%22urn%3Aorg%3Aonap%3A%3Aobligation%3Amonitoring%3Acontents%22%3E%0D%0A+++++%3CDescription%3EIF+exists+and+is+equal%3C%2FDescription%3E%0D%0A+++++++%3CAttributeValue+DataType%3D%22http%3A%2F%2Fwww.w3.org%2F2001%2FXMLSchema%23string%22%3E%7B%22type%22%3A%22onap.policies.Test%22%2C%22type_version%22%3A%221.0.0%22%2C%22properties%22%3A%7B%22nonmatachableString%22%3A%22I+am+NON+matchable%22%2C%22matchableString%22%3A%22I+should+be+matched%22%2C%22nonmatachableInteger%22%3A0%2C%22matachableInteger%22%3A1000%2C%22nonmatachableDouble%22%3A0%2C%22matchableDouble%22%3A1.1%2C%22nonmatachableBoolean%22%3Afalse%2C%22matachableBoolean%22%3Atrue%2C%22matchableListString%22%3A%5B%22match+A%22%2C%22match+B%22%5D%7D%2C%22name%22%3A%22Test.policy%22%2C%22version%22%3A%221.0.0%22%2C%22metadata%22%3A%7B%22policy-id%22%3A%22Test.policy%22%2C%22policy-version%22%3A%221%22%7D%7D%3C%2FAttributeValue%3E%0D%0A+++++++++%3CApply+FunctionId%3D%22urn%3Aoasis%3Anames%3Atc%3Axacml%3A1.0%3Afunction%3Ainteger-equal%22%3E%0D%0A++++++++++++++++++++%3CDescription%3EDoes+the+policy-type+attribute+exist%3F%3C%2FDescription%3E%0D%0A++++++++++++++++++++%3CApply+FunctionId%3D%22urn%3Aoasis%3Anames%3Atc%3Axacml%3A1.0%3Afunction%3Astring-bag-size%22%3E%0D%0A++++++++++++++++%3C%2FAttributeAssignmentExpression%3E%0D%0A++++++++%3C%2FObligationExpression%3E%0D%0A%3CDescription%3EGet+the+size++%3C%2FObligationExpressions%3E%0D%0A%3C%2FPolicy%3E%0D%0A"

The native XACML rules for above TOSCA policy is:

of+policy-type+attributes%3C%2FDescription%3E%0D%0A++++++++++++++++++++++++%3CAttributeDesignator+Category%3D%22urn%3Aoasis%3Anames%3Atc%3Axacml%3A3.0%3Aattribute-category%3Aresource%22+AttributeId%3D%22urn%3Aorg%3Aonap%3Apolicy-type%22+DataType%3D%22http%3A%2F%2Fwww.w3.org%2F2001%2FXMLSchema%23string%22+MustBePresent%3D%22false%22%2F%3E%0D%0A++++++++++++++++++++%3C%2FApply%3E%0D%0A++++++++++++++++++++%3CAttributeValue+DataType%3D%22http%3A%2F%2Fwww.w3.org%2F2001%2FXMLSchema%23integer%22%3E0%3C%2FAttributeValue%3E%0D%0A++++++++++++++++%3C%2FApply%3E%0D%0A++++++++++++++++%3CApply+FunctionId%3D%22urn%3Aoasis%3Anames%3Atc%3Axacml%3A1.0%3Afunction%3Astring-is-in%22%3E%0D%0A++++++++++++++++++++%3CDescription%3EIs+this+policy-type+in+the+list%3F%3C%2FDescription%3E%0D%0A++++++++++++++++++++%3CAttributeValue+DataType%3D%22http%3A%2F%2Fwww.w3.org%2F2001%2FXMLSchema%23string%22%3Eonap.policies.Test%3C%2FAttributeValue%3E%0D%0A++++++++++++++++++++%3CAttributeDesignator+Category%3D%22urn%3Aoasis%3Anames%3Atc%3Axacml%3A3.0%3Aattribute-category%3Aresource%22+AttributeId%3D%22urn%3Aorg%3Aonap%3Apolicy-type%22+DataType%3D%22http%3A%2F%2Fwww.w3.org%2F2001%2FXMLSchema%23string%22+MustBePresent%3D%22false%22%2F%3E%0D%0A++++++++++++++++%3C%2FApply%3E%0D%0A++++++++++++%3C%2FApply%3E%0D%0A++++++++%3C%2FCondition%3E%0D%0A++++%3C%2FRule%3E%0D%0A++++%3CRule+RuleId%3D%22Test.policy%3Arule%3Apolicy-type%22+Effect%3D%22Permit%22%3E%0D%0A++++++++%3CDescription%3EMatch+on+policy-type+onap.policies.Test%3C%2FDescription%3E%0D%0A++++++++%3CTarget%3E%0D%0A++++++++++++%3CAnyOf%3E%0D%0A++++++++++++++++%3CAllOf%3E%0D%0A++++++++++++++++++++%3CMatch+MatchId%3D%22urn%3Aoasis%3Anames%3Atc%3Axacml%3A1.0%3Afunction%3Astring-equal%22%3E%0D%0A++++++++++++++++++++++++%3CAttributeValue+DataType%3D%22http%3A%2F%2Fwww.w3.org%2F2001%2FXMLSchema%23string%22%3Eonap.policies.Test%3C%2FAttributeValue%3E%0D%0A++++++++++++++++++++++++%3CAttributeDesignator+Category%3D%22urn%3Aoasis%3Anames%3Atc%3Axacml%3A3.0%3Aattribute-category%3Aresource%22+AttributeId%3D%22urn%3Aorg%3Aonap%3Apolicy-type%22+DataType%3D%22http%3A%2F%2Fwww.w3.org%2F2001%2FXMLSchema%23string%22+MustBePresent%3D%22false%22%2F%3E%0D%0A++++++++++++++++++++%3C%2FMatch%3E%0D%0A++++++++++++++++%3C%2FAllOf%3E%0D%0A++++++++++++%3C%2FAnyOf%3E%0D%0A++++++++%3C%2FTarget%3E%0D%0A++++%3C%2FRule%3E%0D%0A++++%3CObligationExpressions%3E%0D%0A++++++++%3CObligationExpression+ObligationId%3D%22urn%3Aorg%3Aonap%3Arest%3Abody%22+FulfillOn%3D%22Permit%22%3E%0D%0A++++++++++++%3CAttributeAssignmentExpression+AttributeId%3D%22urn%3Aorg%3Aonap%3A%3Aobligation%3Amonitoring%3Acontents%22%3E%0D%0A++++++++++++++++%3CAttributeValue+DataType%3D%22http%3A%2F%2Fwww.w3.org%2F2001%2FXMLSchema%23string%22%3E%7B%22type%22%3A%22onap.policies.Test%22%2C%22type_version%22%3A%221.0.0%22%2C%22properties%22%3A%7B%22nonmatachableString%22%3A%22I+am+NON+matchable%22%2C%22matchableString%22%3A%22I+should+be+matched%22%2C%22nonmatachableInteger%22%3A0%2C%22matachableInteger%22%3A1000%2C%22nonmatachableDouble%22%3A0%2C%22matchableDouble%22%3A1.1%2C%22nonmatachableBoolean%22%3Afalse%2C%22matachableBoolean%22%3Atrue%2C%22matchableListString%22%3A%5B%22match+A%22%2C%22match+B%22%5D%7D%2C%22name%22%3A%22Test.policy%22%2C%22version%22%3A%221.0.0%22%2C%22metadata%22%3A%7B%22policy-id%22%3A%22Test.policy%22%2C%22policy-version%22%3A%221%22%7D%7D%3C%2FAttributeValue%3E%0D%0A++++++++++++%3C%2FAttributeAssignmentExpression%3E%0D%0A++++++++%3C%2FObligationExpression%3E%0D%0A++++%3C%2FObligationExpressions%3E%0D%0A%3C%2FPolicy%3E%0D%0A"

The native XACML rules for above TOSCA policy is:

Code Block
languageyml
titleNative XACML rules
linenumberstrue
collapsetrue
<Policy
	xmlns
Code Block
languageyml
titleNative XACML rules
linenumberstrue
collapsetrue
<Policy
	xmlns="urn:oasis:names:tc:xacml:3.0:core:schema:wd-17" PolicyId="Test.policy" Version="1" RuleCombiningAlgId="urn:oasis:names:tc:xacml:1.0:rule-combining-algorithm:first-applicable">
	<Target/>
	<Rule RuleId="Test.policy:rule" Effect="Permit">
		<Description>Default is to PERMIT if the policy matches.</Description>
		<Target>
			<AnyOf>
				<AllOf>
					<Match MatchId="urn:oasis:names:tc:xacml:1.0:function:string-equal">
						<AttributeValue DataType="http://www.w3.org/2001/XMLSchema#string">I should be matched</AttributeValue>
						<AttributeDesignator Category="urn:oasis:names:tc:xacml:3.0:attribute-category:resource" AttributeId="urn:org:onap:matchable:matchableString" DataType="http://www.w3.org/2001/XMLSchema#string" MustBePresent="false"/>
					</Match>
				</AllOf>
			</AnyOf>
			<AnyOf>
				<AllOf>
					<Match MatchId="urn:oasis:names:tc:xacml:1.0:function:integer-equal">
						<AttributeValue DataType="http://www.w3.org/2001/XMLSchema#integer">1000</AttributeValue>
						<AttributeDesignator Category="urn:oasis:names:tc:xacml:3.0:attribute-category:resource" AttributeId="urn:org:onap:matchable:matachableInteger" DataType="http://www.w3.org/2001/XMLSchema#integer" MustBePresent="false"/>
					</Match>
				</AllOf>
			</AnyOf>
			<AnyOf>
				<AllOf>
					<Match MatchId="urn:oasis:names:tc:xacml:1.0:function:double-equal">
						<AttributeValue DataType="http://www.w3.org/2001/XMLSchema#double">1.1</AttributeValue>
						<AttributeDesignator Category="urn:oasis:names:tc:xacml:3.0:attribute-category:resource" AttributeId="urn:org:onap:matchable:matchableDouble" DataType="http://www.w3.org/2001/XMLSchema#double" MustBePresent="false"/>
					</Match>
				</AllOf>
			</AnyOf>
			<AnyOf>
				<AllOf>
					<Match MatchId="urn:oasis:names:tc:xacml:1.0:function:boolean-equal">
						<AttributeValue DataType="http://www.w3.org/2001/XMLSchema#boolean">true</AttributeValue>
						<AttributeDesignator Category="urn:oasis:names:tc:xacml:3.0:core:schema:attributewd-category:resource17" AttributeIdPolicyId="urn:org:onap:matchable:matachableBooleanTest.policy" DataTypeVersion="http://www.w3.org/2001/XMLSchema#boolean1" MustBePresent="false"/>
					</Match>
				</AllOf>
			</AnyOf>RuleCombiningAlgId="urn:oasis:names:tc:xacml:1.0:rule-combining-algorithm:first-applicable">
	<Target/>
	<Rule RuleId="Test.policy:rule" Effect="Permit">
		<Description>Default is to PERMIT if the policy matches.</Description>
		<Target>
			<AnyOf>
				<AllOf>
					<Match MatchId="urn:oasis:names:tc:xacml:1.0:function:string-equal">
						<AttributeValue DataType="http://www.w3.org/2001/XMLSchema#string">match A<>I should be matched</AttributeValue>
						<AttributeDesignator Category="urn:oasis:names:tc:xacml:3.0:attribute-category:resource" AttributeId="urn:org:onap:matchable:matchableListStringmatchableString" DataType="http://www.w3.org/2001/XMLSchema#string" MustBePresent="false"/>
					</Match>
				</AllOf>
			</AnyOf>
			<AnyOf>
				<AllOf>
					<Match MatchId="urn:oasis:names:tc:xacml:1.0:function:stringinteger-equal">
						<AttributeValue DataType="http://www.w3.org/2001/XMLSchema#stringXMLSchema#integer">match B<>1000</AttributeValue>
						<AttributeDesignator Category="urn:oasis:names:tc:xacml:3.0:attribute-category:resource" AttributeId="urn:org:onap:matchable:matchableListStringmatachableInteger" DataType="http://www.w3.org/2001/XMLSchema#stringXMLSchema#integer" MustBePresent="false"/>
					</Match>
				</AllOf>
			</AnyOf>
		</Target>	<AnyOf>
		<Condition>		<AllOf>
			<Apply		<Match FunctionIdMatchId="urn:oasis:names:tc:xacml:1.0:function:ordouble-equal">
				<Description>IF exists and is equal</Description>
				<Apply FunctionId<AttributeValue DataType="urn:oasis:names:tc:xacml:1.0:function:integer-equal">
					<Description>Does the policy-type attribute exist?</Description>
					<Apply FunctionId="urn:oasis:names:tc:xacml:1.0:function:string-bag-size">
						<Description>Get the size of policy-type attributes</Description>http://www.w3.org/2001/XMLSchema#double">1.1</AttributeValue>
						<AttributeDesignator Category="urn:oasis:names:tc:xacml:3.0:attribute-category:resource" AttributeId="urn:org:onap:policy-typematchable:matchableDouble" DataType="http://www.w3.org/2001/XMLSchema#stringXMLSchema#double" MustBePresent="false"/>
					</Apply>Match>
				</AllOf>
			<AttributeValue DataType="http://www.w3.org/2001/XMLSchema#integer">0</AttributeValue></AnyOf>
			<AnyOf>
				</Apply><AllOf>
					<Apply<Match FunctionIdMatchId="urn:oasis:names:tc:xacml:1.0:function:stringboolean-is-inequal">
					<Description>Is this policy-type in the list?</Description>
					<AttributeValue DataType="http://www.w3.org/2001/XMLSchema#string">onap.policies.Test<XMLSchema#boolean">true</AttributeValue>
						<AttributeDesignator Category="urn:oasis:names:tc:xacml:3.0:attribute-category:resource" AttributeId="urn:org:onap:matchable:policy-typematachableBoolean" DataType="http://www.w3.org/2001/XMLSchema#stringXMLSchema#boolean" MustBePresent="false"/>
					</Apply>Match>
				</Apply>AllOf>
		</Condition>
	</Rule>AnyOf>
	<Rule RuleId="Test.policy:rule:policy-type" Effect="Permit">
		<Description>Match on policy-type onap.policies.Test</Description>
		<Target>
			<AnyOf>
				<AllOf>
					<Match MatchId="urn:oasis:names:tc:xacml:1.0:function:string-equal">
						<AttributeValue DataType="http://www.w3.org/2001/XMLSchema#string">onap.policies.Test<>match A</AttributeValue>
						<AttributeDesignator Category="urn:oasis:names:tc:xacml:3.0:attribute-category:resource" AttributeId="urn:org:onap:policy-typematchable:matchableListString" DataType="http://www.w3.org/2001/XMLSchema#string" MustBePresent="false"/>
					</Match>
				</AllOf>
				</AnyOf><AllOf>
		</Target>
	</Rule>
	<ObligationExpressions>
		<ObligationExpression<Match ObligationIdMatchId="urn:org:onap:rest:body" FulfillOn="Permit">
			<AttributeAssignmentExpression:oasis:names:tc:xacml:1.0:function:string-equal">
						<AttributeValue DataType="http://www.w3.org/2001/XMLSchema#string">match B</AttributeValue>
						<AttributeDesignator Category="urn:oasis:names:tc:xacml:3.0:attribute-category:resource" AttributeId="urn:org:onap:matchable:obligation:monitoring:contents">
				<AttributeValuematchableListString" DataType="http://www.w3.org/2001/XMLSchema#string">{"type":"onap.policies.Test","type_version":"1.0.0","properties":{"nonmatachableString":"I am NON matchable","matchableString":"I should be matched","nonmatachableInteger":0,"matachableInteger":1000,"nonmatachableDouble":0,"matchableDouble":1.1,"nonmatachableBoolean":false,"matachableBoolean":true,"matchableListString":["match A","match B"]},"name":"Test.policy","version":"1.0.0","metadata":{"policy-id":"Test.policy","policy-version":"1"}}</AttributeValue>
			</AttributeAssignmentExpression>
		</ObligationExpression>
	</ObligationExpressions>
</Policy>

Note that DELETE call should remove TOSCA policy from DB as well as corresponding JAR from nexus

Pamela DragoshJorge Hernandez Question: checking existence of pointed JAR in nexus should happen in API each time new policy is created/updated, or in PAP when this policy gets deployed, or in PDP only???

Question: do we need to return native policy contents, i.e. DRL or XACML XML when GET call is invoked? If not, what if end user wants to view native policy rules???

3. PAP Enhancements

PDP Engines must now register with PAP the new policy types for native policies they support in order for policies to be deployed by PAP to the PDP's. This will require an additional entry to be added into supported policy types list to indicate which native policy type each specific PDP engine can support.

3.1 Example of PDP Register

Only change needed is to add a new supported policy type to PDP status message when it registers itself with PAP. For XACML PDP, new policy type "onap.policies.controlloop.native.Xacml" should be added. Likewise, new policy type "onap.policies.controlloop.native.Drools" should be added when Drools PDP registers itself with PAP. For example

Code Block
languagejs
titleExample XACML PDP status message when it registers itself with PAP
linenumberstrue
collapsetrue
{
  "pdpType": "xacml",
  "state": "PASSIVE",
  "healthy": "HEALTHY",
  "supportedPolicyTypes": [
    {
      "name": "onap.Monitoring",
      "version": "1.0.0"
    },
    {
      "name": "onap.policies.monitoring.cdap.tca.hi.lo.app",
      "version": "1.0.0"
    },
    {
      "name": "onap.policies.monitoring.dcaegen2.collectors.datafile.datafile-app-server",
      "version": "1.0.0"
    },
    {
      "name": "onap.policies.monitoring.docker.sonhandler.app",
      "version": "1.0.0"
    },
    {
      "name": "onap.policies.controlloop.guard.FrequencyLimiter",
      "version": "1.0.0"
    },
    {
      "name": "onap.policies.controlloop.guard.MinMax",
      "version": "1.0.0"
    },
    {
      "name": "onap.policies.controlloop.guard.Blacklist",
      "version": "1.0.0"
    },
    {
      "name": "onap.policies.controlloop.guard.coordination.FirstBlocksSecond",
      "version": "1.0.0"
    },
    {
      "name": "onap.policies.optimization.AffinityPolicy",
      "version": "1.0.0"
    },
    {
      "name": "onap.policies.optimization.DistancePolicy",
      "version": "1.0.0"
    },
    {
      "name": "onap.policies.optimization.HpaPolicy",
      "version": "1.0.0"
    },
    {
      "name": "onap.policies.optimization.OptimizationPolicy",
      "version": "1.0.0"
    },
    {
      "name": "onap.policies.optimization.PciPolicy",
      "version": "1.0.0"
    },
    {
      "name": "onap.policies.optimization.QueryPolicy",
      "version": "1.0.0"
    },
    {
      "name": "onap.policies.optimization.SubscriberPolicy",
      "version": "1.0.0"
    },
    {
      "name": "onap.policies.optimization.Vim_fit",
      "version": "1.0.0"
    },
    {
      "name": "onap.policies.optimization.VnfPolicy",
      "version": "1.0.0"
    },
	{
	  "name": "onap.policies.controlloop.native.Xacml",
	  "version": "1.0.0"
	}
  ],
  "policies": [],
  "messageName": "PDP_STATUS",
  "requestId": "77f42778-f19a-47a6-a9a1-984cbb125d96",
  "timestampMs": 1571244733313,
  "name": "FLCDTL02JH7358"
}
Code Block
languagejs
titleExample Drools PDP status message when it registers itself with PAP
linenumberstrue
collapsetrue
{
  "pdpType": "drools",
  "state": "PASSIVE",
  "healthy": "HEALTHY",
  "supportedPolicyTypes": [
    {
      "name": "onap.policies.controlloop.Operational",
      "version": "1.0.0"
    },
	{
	  "name": "onap.policies.controlloop.native.Drools",
	  "version": "1.0.0"
	}
  ],
  "policies": [],
  "messageName": "PDP_STATUS",
  "requestId": "8ae9fe00-8979-460f-83b2-92d7bd517c34",
  "timestampMs": 1571244753326,
  "name": "XGIQPQ96FL9182"
}

3.2 Example PDP Group Deploy

 MustBePresent="false"/>
					</Match>
				</AllOf>
			</AnyOf>
		</Target>
		<Condition>
			<Apply FunctionId="urn:oasis:names:tc:xacml:1.0:function:or">
				<Description>IF exists and is equal</Description>
				<Apply FunctionId="urn:oasis:names:tc:xacml:1.0:function:integer-equal">
					<Description>Does the policy-type attribute exist?</Description>
					<Apply FunctionId="urn:oasis:names:tc:xacml:1.0:function:string-bag-size">
						<Description>Get the size of policy-type attributes</Description>
						<AttributeDesignator Category="urn:oasis:names:tc:xacml:3.0:attribute-category:resource" AttributeId="urn:org:onap:policy-type" DataType="http://www.w3.org/2001/XMLSchema#string" MustBePresent="false"/>
					</Apply>
					<AttributeValue DataType="http://www.w3.org/2001/XMLSchema#integer">0</AttributeValue>
				</Apply>
				<Apply FunctionId="urn:oasis:names:tc:xacml:1.0:function:string-is-in">
					<Description>Is this policy-type in the list?</Description>
					<AttributeValue DataType="http://www.w3.org/2001/XMLSchema#string">onap.policies.Test</AttributeValue>
					<AttributeDesignator Category="urn:oasis:names:tc:xacml:3.0:attribute-category:resource" AttributeId="urn:org:onap:policy-type" DataType="http://www.w3.org/2001/XMLSchema#string" MustBePresent="false"/>
				</Apply>
			</Apply>
		</Condition>
	</Rule>
	<Rule RuleId="Test.policy:rule:policy-type" Effect="Permit">
		<Description>Match on policy-type onap.policies.Test</Description>
		<Target>
			<AnyOf>
				<AllOf>
					<Match MatchId="urn:oasis:names:tc:xacml:1.0:function:string-equal">
						<AttributeValue DataType="http://www.w3.org/2001/XMLSchema#string">onap.policies.Test</AttributeValue>
						<AttributeDesignator Category="urn:oasis:names:tc:xacml:3.0:attribute-category:resource" AttributeId="urn:org:onap:policy-type" DataType="http://www.w3.org/2001/XMLSchema#string" MustBePresent="false"/>
					</Match>
				</AllOf>
			</AnyOf>
		</Target>
	</Rule>
	<ObligationExpressions>
		<ObligationExpression ObligationId="urn:org:onap:rest:body" FulfillOn="Permit">
			<AttributeAssignmentExpression AttributeId="urn:org:onap::obligation:monitoring:contents">
				<AttributeValue DataType="http://www.w3.org/2001/XMLSchema#string">{"type":"onap.policies.Test","type_version":"1.0.0","properties":{"nonmatachableString":"I am NON matchable","matchableString":"I should be matched","nonmatachableInteger":0,"matachableInteger":1000,"nonmatachableDouble":0,"matchableDouble":1.1,"nonmatachableBoolean":false,"matachableBoolean":true,"matchableListString":["match A","match B"]},"name":"Test.policy","version":"1.0.0","metadata":{"policy-id":"Test.policy","policy-version":"1"}}</AttributeValue>
			</AttributeAssignmentExpression>
		</ObligationExpression>
	</ObligationExpressions>
</Policy>

Note that DELETE call should remove TOSCA policy from DB as well as corresponding JAR from nexus

Pamela DragoshJorge Hernandez Question: checking existence of pointed JAR in nexus should happen in API each time new policy is created/updated, or in PAP when this policy gets deployed, or in PDP only???

Question: do we need to return native policy contents, i.e. DRL or XACML XML when GET call is invoked? If not, what if end user wants to view native policy rules???

2.3 Native Apex Policy Support

2.3.1 Policy Type for Native Apex Policy

Below is the policy type defined to support native apex policies.

Code Block
languageyml
themeEclipse
titlePolicy Type for Native Apex Policy
linenumberstrue
collapsetrue
tosca_definitions_version: tosca_simple_yaml_1_0_0,
policy_types:
    onap.policies.Native:
        derived_from: tosca.policies.Root
        description: a base policy type for all native PDP policies
        version: 1.0.0
    onap.policies.native.Apex:
        derived_from: onap.policies.Native
        description: a policy type for native apex policies
        version: 1.0.0
        properties:
            engine_service:
                type: onap.datatypes.native.apex.EngineService
                description: APEX Engine Service Parameters
            inputs:
                type: map
                description: Inputs for handling events coming into the APEX engine
                entry_schema:
                    type: onap.datatypes.native.apex.EventHandler
            outputs:
                type: map
                description: Outputs for handling events going out of the APEX engine
                entry_schema:
                    type: onap.datatypes.native.apex.EventHandler
            environment:
                type: list
                description: Envioronmental parameters for the APEX engine
                entry_schema:
                    type: onap.datatypes.native.apex.Environment

data_types:
    onap.datatypes.native.apex.EngineService:
        derived_from: tosca.datatypes.Root
        properties:
            name:
                type: string
                description: Specifies the engine name
                required: false
                default: "ApexEngineService"
            version:
                type: string
                description: Specifies the engine version in double dotted format
                required: false
                default: "1.0.0"
            id:
                type: int
                description: Specifies the engine id
                required: true
            instance_count:
                type: int
                description: Specifies the number of engine threads that should be run
                required: true
            deployment_port:
                type: int
                description: Specifies the port to connect to for engine administration
                required: false
                default: 1
            policy_model_file_name:
                type: string
                description: The name of the file from which to read the APEX policy model
                required: false
                default: ""
            policy_type_impl:
                type: string
                description: The policy type implementation from which to read the APEX policy model
                required: false
                default: ""
            periodic_event_period:
                type: string
                description: The time interval in milliseconds for the periodic scanning event, 0 means don't scan
                required: false
                default: 0
            engine:
                type: onap.datatypes.native.apex.engineservice.Engine
                description: The parameters for all engines in the APEX engine service
                required: true
    onap.datatypes.native.apex.EventHandler:
        derived_from: tosca.datatypes.Root
        properties:
            name:
                type: string
                description: Specifies the event handler name, if not specified this is set to the key name
                required: false
            carrier_technology:
                type: onap.datatypes.native.apex.CarrierTechnology
                description: Specifies the carrier technology of the event handler (such as REST/Web Socket/Kafka)
                required: true
            event_protocol:
                type: onap.datatypes.native.apex.EventProtocol
                description: Specifies the event protocol of events for the event handler (such as Yaml/JSON/XML/POJO)
                required: true
            event_name:
                type: string
                description: Specifies the event name for events on this event handler, if not specified, the event name is read from or written to the event being received or sent
                required: false
            event_name_filter:
                type: string
                description: Specifies a filter as a regular expression, events that do not match the filter are dropped, the default is to let all events through
                required: false
            synchronous_mode:
                type: bool
                description: Specifies the event handler is syncronous (receive event and send response)
                required: false
                default: false
            synchronous_peer:
                type: string
                description: The peer event handler (output for input or input for output) of this event handler in synchronous mode, this parameter is mandatory if the event handler is in synchronous mode
                required: false
                default: ""
            synchronous_timeout:
                type: int
                description: The timeout in milliseconds for responses to be issued by APEX torequests, this parameter is mandatory if the event handler is in synchronous mode
                required: false
                default: ""
            requestor_mode:
                type: bool
                description: Specifies the event handler is in requestor mode (send event and wait for response mode)
                required: false
                default: false
            requestor_peer:
                type: string
                description: The peer event handler (output for input or input for output) of this event handler in requestor mode, this parameter is mandatory if the event handler is in requestor mode
                required: false
                default: ""
            requestor_timeout:
                type: int
                description: The timeout in milliseconds for wait for responses to requests, this parameter is mandatory if the event handler is in requestor mode
                required: false
                default: ""
    onap.datatypes.native.apex.CarrierTechnology:
        derived_from: tosca.datatypes.Root
        properties:
            label:
                type: string
                description: The label (name) of the carrier technology (such as REST, Kafka, WebSocket)
                required: true
            plugin_parameter_class_name:
                type: string
                description: The class name of the class that overrides default handling of event input or output for this carrier technology, defaults to the supplied input or output class
                required: false
    onap.datatypes.native.apex.EventProtocol:
        derived_from: tosca.datatypes.Root
        properties:
            label:
                type: string
                description: The label (name) of the event protocol (such as Yaml, JSON, XML, or POJO)
                required: true
            event_protocol_plugin_class:
                type: string
                description: The class name of the class that overrides default handling of the event protocol for this carrier technology, defaults to the supplied event protocol class
                required: false
    onap.datatypes.native.apex.Environmental:
        derived_from: tosca.datatypes.Root
        properties:
            name:
                type: string
                description: The name of the environment variable
                required: true
            value:
                type: string
                description: The value of the environment variable
                required: true
    onap.datatypes.native.apex.engineservice.Engine:
        derived_from: tosca.datatypes.Root
        properties:
            context:
                type: onap.datatypes.native.apex.engineservice.engine.Context
                description: The properties for handling context in APEX engines, defaults to using Java maps for context
                required: false
            executors:
                type: map
                description: The plugins for policy executors used in engines such as javascript, MVEL, Jython
                required: true
                entry_schema:
                    description: The plugin class path for this policy executor
                    type: string
    onap.datatypes.native.apex.engineservice.engine.Context:
        derived_from: tosca.datatypes.Root
        properties:
            distributor:
                type: onap.datatypes.native.apex.Plugin
                description: The plugin to be used for distributing context between APEX PDPs at runtime
                required: false
            schemas:
                type: map
                description: The plugins for context schemas available in APEX PDPs such as Java and Avro
                required: false
                entry_schema:
                    type: onap.datatypes.native.apex.Plugin
            locking:
                type: onap.datatypes.native.apex.plugin
                description: The plugin to be used for locking context in and between APEX PDPs at runtime
                required: false
            persistence:
                type: onap.datatypes.native.apex.Plugin
                description: The plugin to be used for persisting context for APEX PDPs at runtime
                required: false
    onap.datatypes.native.apex.Plugin:
        derived_from: tosca.datatypes.Root
        properties:
            name:
                type: string
                description: The name of the executor such as Javascript, Jython or MVEL
                required: true
            plugin_class_name:
                type: string
                description: The class path of the plugin class for this executor


NOTE: The native policy type is already loaded in policy framework during installation, hence a user can directly deploy native policies in respective pdp engines without a need to create policy type first.

3. PAP Enhancements

PDP Groups must be provisioned to support the new policy types for native policies in order for policies to be deployed by PAP to the PDP's. This will require an additional entry to be added into supported policy types list to indicate which native policy type each specific PDP Subgroup can support.

3.1 PDP Group & SubGroup

The Like PDP registration message, the same native policy type should be added into supported policy types list to indicate which type of native policies each pdpSubGroup PDP SubGroup can support.

Below is one example to deploy a PDP groupof PDP Group with native policies support for xacml, drools & apex engines.

Code Block
languagejs
titleExample PDP group deployment message
linenumberstrue
collapsetrue
{
    "groups": [
        {
            "name": "defaultGroup",
            "description": "The default group that registers all supported policy types and pdps.",
            "pdpGroupState": "ACTIVE",
            "properties": {},
            "pdpSubgroups": [
                {
                    "pdpType": "apex",
                    "supportedPolicyTypes": [
                        {
                            "name": "onap.policies.controlloop.operational.Apex",
                            "version": "1.0.0"
                        },
						{
							"name": "onap.policies.controlloop.native.Apex",
							"version": "1.0.0"
						}
                    ],
                    "policies": [],
                    "currentInstanceCount": 0,
                    "desiredInstanceCount": 1,
                    "properties": {},
                    "pdpInstances": [
                        {
                            "instanceId": "apex_35",
                            "pdpState": "ACTIVE",
                            "healthy": "HEALTHY",
                            "message": "Pdp Heartbeat"
                        }
                    ]
                },
                {
                    "pdpType": "drools",
                    "supportedPolicyTypes": [
                        {
                            "name": "onap.policies.controlloop.Operational",
                            "version": "1.0.0"
                        },
						{
							"name": "onap.policies.controlloop.native.Drools",
							"version": "1.0.0"
						}
                    ],
                    "policies": [],
                    "currentInstanceCount": 0,
                    "desiredInstanceCount": 1,
                    "properties": {},
                    "pdpInstances": [
                        {
                            "instanceId": "dev-policy-drools-0",
                            "pdpState": "ACTIVE",
                            "healthy": "HEALTHY"
                        }
                    ]
                },
                {
                    "pdpType": "xacml",
                    "supportedPolicyTypes": [
                        {
                            "name": "onap.policies.controlloop.guard.FrequencyLimiter",
                            "version": "1.0.0"
                        },
                        {
                            "name": "onap.policies.controlloop.guard.MinMax",
                            "version": "1.0.0"
                        },
                        {
                            "name": "onap.policies.controlloop.guard.Blacklist",
                            "version": "1.0.0"
                        },
                        {
                            "name": "onap.policies.controlloop.guard.coordination.FirstBlocksSecond",
                            "version": "1.0.0"
                        },
                        {
                            "name": "onap.Monitoring",
                            "version": "1.0.0"
                        },
                        {
                            "name": "onap.policies.monitoring.cdap.tca.hi.lo.app",
                            "version": "1.0.0"
                        },
                        {
                            "name": "onap.policies.monitoring.dcaegen2.collectors.datafile.datafile-app-server",
                            "version": "1.0.0"
                        },
                        {
                            "name": "onap.policies.monitoring.docker.sonhandler.app",
                            "version": "1.0.0"
                        },
                        {
                            "name": "onap.policies.optimization.AffinityPolicy",
                            "version": "1.0.0"
                        },
                        {
                            "name": "onap.policies.optimization.DistancePolicy",
                            "version": "1.0.0"
                        },
                        {
                            "name": "onap.policies.optimization.HpaPolicy",
                            "version": "1.0.0"
                        },
                        {
                            "name": "onap.policies.optimization.OptimizationPolicy",
                            "version": "1.0.0"
                        },
                        {
                            "name": "onap.policies.optimization.PciPolicy",
                            "version": "1.0.0"
                        },
                        {
                            "name": "onap.policies.optimization.QueryPolicy",
                            "version": "1.0.0"
                        },
                        {
                            "name": "onap.policies.optimization.SubscriberPolicy",
                            "version": "1.0.0"
                        },
                        {
                            "name": "onap.policies.optimization.Vim_fit",
                            "version": "1.0.0"
                        },
                        {
                            "name": "onap.policies.optimization.VnfPolicy",
                            "version": "1.0.0"
                        },
						{
							"name": "onap.policies.controlloop.native.Xacml",
							"version": "1.0.0"
						}
                    ],
                    "policies": [],
                    "currentInstanceCount": 1,
                    "desiredInstanceCount": 1,
                    "properties": {},
                    "pdpInstances": [
                        {
                            "instanceId": "dev-policy-policy-xacml-pdp-558c478477-g85jl",
                            "pdpState": "ACTIVE",
                            "healthy": "HEALTHY"
                        }
                    ]
                }
            ]
        }
    ]
}

3.

...

2 Deploy/Undeploy API

No change is envisioned on current deploy/undeploy API. Still, only policy-id and version are needed to tell PAP to deploy/undeploy a native policy.

...

Each PDP will need to be able to support native policies being deploy/undeployed to it as done today.

4.1 Drools PDP

On one hand, Drools PDP will need to parse the information encoded in the TOSCA policy with native Drools JAR pointer and Drools controller configuration which is deployed from PAPdeployed from PAP in terms of native DRL JAR GAV (GroupId, ArtifactId, Version) information and Drools controller configuration if present. It will then go to the nexus to pull the native DRL JAR and corresonding dependencies. If the Drools controller configuration is present, Drools PDP needs to know first if it is a new controller to instantiate or reusing an existing one by parsing the "isNewController" flag. If reusing an existing one, what Drools PDP needs to do is just assign the native DRL JAR and corresonding dependencies . A to that controller. Otherwise, a new Drools controller instance should be instantiated using the configuration configurations included in the deployed TOSCA policyproperties. The new Drools controller should be able to load the native DRL and corresponding supportive facts into Drools memory to execute native DRLwork memory for rule execution.

On the other hand, when Drools PDP receives a request to undeploy a native policy, it should be able to disable corresponding Drools controller and clean up the related facts from the memory.facts from the memory.

Another thread of extension needed is to expose the telemetry API used to manage the lifecycle of Drools controller, which is to facilitate those policy designers who want to change controller setup at runtime. Current telemetry API can only be called from within policy container. One example is shown below:

Code Block
curl -k --silent --user ${TELEMETRY_USER}:${TELEMETRY_PASSWORD} -X POST --data @${json} --header "Content-Type: application/json" \
			https://localhost:${TELEMETRY_PORT}/policy/pdp/engine/controllers

4.2 XACML PDP

XACML PDP will need to be able to ingest a XACML XML Policy directly. One suggestion is to create an application specifically for the XACML natives rules by default. The opportunity exists where a policy designer could create a specific application that supports native XACML policies (with or without TOSCA Policy Types as an option) and uses the grouping of PDPs to differentiate itself from the default XACML native rule application. The XACML PDP should also be enhanced to support configuring of applications in order to provide flexibility to the policy designers as to where all of its possible policy types are deployed.

...

This scenario is the most complicated one. For new use case, XACML policy author might need to use both existing types of XACML policies, e.g. guard, together with newly composed native XACML XML policies, e.g. custom access control rules. Perhaps we need to build another new XACML application for this combination. More details need to be figured out, e.g. do we need a new TOSCA policy type for this combination? how to combine the low level XACML XML policies together? what is the combining algorithm we should use?  etc. etc.

4.3 Apex PDP

Apex PDP will need to be able to ingest custom Apex JSON policies. TBC with that team - may already be well-supportedalready supports the native policies created using the policy type defined in section 2.3.1 above.

5. Sequence flows for native policy design, deployment and enforcement

...