Update Tutorial Documentation

Point to actual code and remove the eclipse instructions as
developers should look elsewhere for these instructions.

Adding enforcement tutorial.

Issue-ID: POLICY-2876
Change-Id: I793c1fae72f832afe7098be57a94f4929e9deb9a
Signed-off-by: Pamela Dragosh <pdragosh@research.att.com>

1 files changed, 161 insertions, 0 deletions

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+.. This work is licensed under a Creative Commons Attribution 4.0 International License.
+
+.. _xacmltutorial-enforcement-label:
+
+Policy XACML - Policy Enforcement Tutorial
+##########################################
+
+.. toctree::
+   :maxdepth: 3
+
+This tutorial shows how to build Policy Enforcement into your application. Please be sure to clone the
+policy repositories before going through the tutorial. See :ref:`policy-development-tools-label` for details.
+
+This tutorial can be found in the XACML PDP repository. `See the tutorial <https://github.com/onap/policy-xacml-pdp/tree/master/tutorials/tutorial-enforcement>`_
+
+Policy Type being Enforced
+**************************
+
+For this tutorial, we will be enforcing a Policy Type that inherits from the **onap.policies.Monitoring** Policy Type. This Policy Type is
+used by DCAE analytics for configuration purposes. Any inherited Policy Type is automatically supported by the XACML PDP for Decisions.
+
+`See the latest example Policy Type <https://github.com/onap/policy-xacml-pdp/blob/master/tutorials/tutorial-enforcement/src/test/resources/MyAnalytic.yaml>`_
+
+.. code-block:: java
+  :caption: Example Policy Type
+
+    tosca_definitions_version: tosca_simple_yaml_1_1_0
+    policy_types:
+       onap.policies.Monitoring:
+          derived_from: tosca.policies.Root
+          version: 1.0.0
+          name: onap.policies.Monitoring
+          description: a base policy type for all policies that govern monitoring provisioning
+       onap.policies.monitoring.MyAnalytic:
+          derived_from: onap.policies.Monitoring
+          type_version: 1.0.0
+          version: 1.0.0
+          description: Example analytic
+          properties:
+             myProperty:
+                type: string
+                required: true
+
+Example Policy
+**************
+
+`See the latest example policy <https://github.com/onap/policy-xacml-pdp/blob/master/tutorials/tutorial-enforcement/src/test/resources/MyPolicies.yaml>`_
+
+.. code-block:: java
+  :caption: Example Policy
+
+    tosca_definitions_version: tosca_simple_yaml_1_1_0
+    topology_template:
+       policies:
+         -
+           policy1:
+               type: onap.policies.monitoring.MyAnalytic
+               type_version: 1.0.0
+               version: 1.0.0
+               name: policy1
+               metadata:
+                 policy-id: policy1
+                 policy-version: 1.0.0
+               properties:
+                 myProperty: value1
+
+Example Decision Requests and Responses
+***************************************
+
+For **onap.policies.Montoring** Policy Types, the action used will be **configure**. For **configure** actions, you can specify a resource by **policy-id** or **policy-type**. We recommend using **policy-type**, as a policy-id may not necessarily be deployed. In addition, your application should request all the available policies for your policy-type that your application should be enforcing.
+
+.. code-block:: json
+  :caption: Example Decision Request
+
+    {
+      "ONAPName": "myName",
+      "ONAPComponent": "myComponent",
+      "ONAPInstance": "myInstanceId",
+      "requestId": "1",
+      "action": "configure",
+      "resource": {
+          "policy-type": "onap.policies.monitoring.MyAnalytic"
+      }
+    }
+
+The **configure** action will return a payload containing your full policy:
+
+.. code-block: json
+  :caption: Example Decision Response
+    {
+        "policies": {
+            "policy1": {
+                "type": "onap.policies.monitoring.MyAnalytic",
+                "type_version": "1.0.0",
+                "properties": {
+                    "myProperty": "value1"
+                },
+                "name": "policy1",
+                "version": "1.0.0",
+                "metadata": {
+                    "policy-id": "policy1",
+                    "policy-version": "1.0.0"
+                }
+            }
+        }
+    }
+
+Making Decision Call in your Application
+****************************************
+
+Your application should be able to do a RESTful API call to the XACML PDP Decision API endpoint. If you have code that does this already, then utilize that to do something similar to the following curl command:
+
+.. code-block: bash
+  :caption: Example Decision API REST Call using curl
+
+    curl -k -u https://xacml-pdp:6969/policy/pdpx/v1/decision
+
+If your application does not have REST http client code, you can use some common code available in the policy/common repository for doing HTTP calls.
+
+.. code-block: java
+  :caption: Policy Common REST Code Dependency
+
+        <dependency>
+            <groupId>org.onap.policy.common</groupId>
+            <artifactId>policy-endpoints</artifactId>
+            <version>${policy.common.version}</version>
+        </dependency>
+
+Also, if your application wants to use common code to serialize/deserialize Decision Requests and Responses, then you can include the following dependency:
+
+.. code-block: java
+  :caption: Policy Decision Request and Response Classes
+
+        <dependency>
+            <groupId>org.onap.policy.models</groupId>
+            <artifactId>policy-models-decisions</artifactId>
+            <version>${policy.models.version}</version>
+        </dependency>
+
+Responding to Policy Update Notifications
+*****************************************
+
+Your application should also be able to respond to Policy Update Notifications that are published on the Dmaap topic POLICY-NOTIFICATION. This is because if a user pushes an updated Policy, your application should be able to dynamically start enforcing that policy without restart.
+
+.. code-block: bash
+  :caption: Example Dmaap REST Call using curl
+
+  curl -k -u https://dmaap:3904/events/POLICY-NOTIFICATION/group/id?timeout=5000
+
+If your application does not have Dmaap client code, you can use some available code in policy/common to receive Dmaap events.
+
+To parse the JSON send over the topic, your application can use the following dependency:
+
+.. code-block: java
+  :caption: Policy PAP Update Notification Classes
+
+        <dependency>
+            <groupId>org.onap.policy.models</groupId>
+            <artifactId>policy-models-pap</artifactId>
+            <version>${policy.models.version}</version>
+        </dependency>