Add shared context example

- Add a new example which splits the DecisionMaker policy into two policies
- One which sets answers and one which makes the decision
- Both policies share the AnswerAlbum context
- Added documentation to support this

Issue-ID: POLICY-4765
Change-Id: I12bcef9f32b5efae2574cc5e6ebb988a17ac96a9
Signed-off-by: waynedunican <wayne.dunican@est.tech>

1 files changed, 121 insertions, 0 deletions

diff --git a/examples/examples-decisionmaker-sharedcontext/pom.xml b/examples/examples-decisionmaker-sharedcontext/pom.xml
new file mode 100644
index 000000000..acbfeff3d
--- /dev/null
+++ b/examples/examples-decisionmaker-sharedcontext/pom.xml
@@ -0,0 +1,121 @@
+<!--
+  ============LICENSE_START=======================================================
+   Copyright (C) 2023 Nordix Foundation.
+  ================================================================================
+  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.
+
+  SPDX-License-Identifier: Apache-2.0
+  ============LICENSE_END=========================================================
+-->
+<project xmlns="http://maven.apache.org/POM/4.0.0" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/xsd/maven-4.0.0.xsd">
+    <modelVersion>4.0.0</modelVersion>
+    <parent>
+        <groupId>org.onap.policy.apex-pdp.examples</groupId>
+        <artifactId>examples</artifactId>
+        <version>3.0.1-SNAPSHOT</version>
+    </parent>
+
+    <artifactId>examples-decisionmaker-sharedcontext</artifactId>
+    <name>${project.artifactId}</name>
+    <description>Specific code for the APEX Decision Maker Example</description>
+
+    <properties>
+        <policymodel.decisionmaker.name>DecisionMakerPolicyModel</policymodel.decisionmaker.name>
+        <policymodel.decisionmakertwo.name>DecisionMakerPolicyModel_Decision</policymodel.decisionmakertwo.name>
+        <apex-domains-decisionmaker-dir>${project.basedir}/src</apex-domains-decisionmaker-dir>
+    </properties>
+
+    <dependencies>
+        <dependency>
+            <groupId>org.onap.policy.apex-pdp.auth</groupId>
+            <artifactId>cli-editor</artifactId>
+            <version>${project.version}</version>
+        </dependency>
+        <dependency>
+            <groupId>org.onap.policy.apex-pdp.services</groupId>
+            <artifactId>services-engine</artifactId>
+            <version>${project.version}</version>
+            <scope>test</scope>
+        </dependency>
+        <dependency>
+            <groupId>org.onap.policy.apex-pdp.plugins.plugins-context.plugins-context-schema</groupId>
+            <artifactId>plugins-context-schema-avro</artifactId>
+            <version>${project.version}</version>
+        </dependency>
+        <dependency>
+            <groupId>org.onap.policy.apex-pdp.plugins.plugins-executor</groupId>
+            <artifactId>plugins-executor-javascript</artifactId>
+            <version>${project.version}</version>
+        </dependency>
+        <dependency>
+            <groupId>org.onap.policy.apex-pdp.plugins.plugins-event.plugins-event-carrier</groupId>
+            <artifactId>plugins-event-carrier-restserver</artifactId>
+            <version>${project.version}</version>
+        </dependency>
+    </dependencies>
+
+    <build>
+        <plugins>
+            <plugin>
+                <groupId>org.apache.maven.plugins</groupId>
+                <artifactId>maven-surefire-plugin</artifactId>
+                <configuration>
+                    <argLine>-Xss1m</argLine>
+                </configuration>
+            </plugin>
+            <!-- Generate the APEX Policy JSON from the APEX CLI command -->
+            <plugin>
+                <groupId>org.codehaus.mojo</groupId>
+                <artifactId>exec-maven-plugin</artifactId>
+                <executions>
+                    <execution>
+                        <id>generate-decisionmaker-sharedcontext-policy</id>
+                        <phase>compile</phase>
+                        <goals>
+                            <goal>java</goal>
+                        </goals>
+                        <configuration>
+                            <mainClass>org.onap.policy.apex.auth.clieditor.tosca.ApexCliToscaEditorMain</mainClass>
+                            <classpathScope>compile</classpathScope>
+                            <arguments>
+                                <argument>--command-file=${project.basedir}/src/main/resources/policy/${policymodel.decisionmaker.name}.apex</argument>
+                                <argument>--output-tosca-file=${project.build.directory}/classes/${policymodel.decisionmaker.name}.json</argument>
+                                <argument>--log-file=${project.build.directory}/${policymodel.decisionmaker.name}_policygeneration.log</argument>
+                                <argument>--apex-config-file=${project.basedir}/src/main/resources/examples/config/DecisionMaker/ApexConfigRESTServerNoModel.json</argument>
+                                <argument>--tosca-template-file=${project.basedir}/src/main/resources/tosca/ToscaTemplate.json</argument>
+                            </arguments>
+                        </configuration>
+                    </execution>
+                    <execution>
+                        <id>generate-decisionmakertwo-sharedcontext-policy</id>
+                        <phase>compile</phase>
+                        <goals>
+                            <goal>java</goal>
+                        </goals>
+                        <configuration>
+                            <mainClass>org.onap.policy.apex.auth.clieditor.tosca.ApexCliToscaEditorMain</mainClass>
+                            <classpathScope>compile</classpathScope>
+                            <arguments>
+                                <argument>--command-file=${project.basedir}/src/main/resources/policy/${policymodel.decisionmakertwo.name}.apex</argument>
+                                <argument>--output-tosca-file=${project.build.directory}/classes/${policymodel.decisionmakertwo.name}.json</argument>
+                                <argument>--log-file=${project.build.directory}/${policymodel.decisionmakertwo.name}_policygeneration.log</argument>
+                                <argument>--apex-config-file=${project.basedir}/src/main/resources/examples/config/DecisionMaker/ApexConfigRESTServerNoModel_Decision.json</argument>
+                                <argument>--tosca-template-file=${project.basedir}/src/main/resources/tosca/ToscaTemplateTwo.json</argument>
+                            </arguments>
+                        </configuration>
+                    </execution>
+                </executions>
+            </plugin>
+        </plugins>
+    </build>
+</project>