Add persistence for PDP concepts

This review adds the JPA annotations to PDP group/subgroup and PDP for
persisting to the database.

It also updates the Provider API as requested by other team members.

Issue-ID: POLICY-1095
Change-Id: I8188afb763849ede9680f3751b464d9d76c27196
Signed-off-by: liamfallon <liam.fallon@est.tech>
diff --git a/models-pdp/src/test/resources/META-INF/persistence.xml b/models-pdp/src/test/resources/META-INF/persistence.xml
new file mode 100644
index 0000000..079ba49
--- /dev/null
+++ b/models-pdp/src/test/resources/META-INF/persistence.xml
@@ -0,0 +1,81 @@
+<?xml version="1.0" encoding="UTF-8"?>
+<!--
+  ============LICENSE_START=======================================================
+   Copyright (C) 2019 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=========================================================
+-->
+
+<persistence xmlns="http://java.sun.com/xml/ns/persistence" version="2.0">
+    <persistence-unit name="ToscaConceptTest" transaction-type="RESOURCE_LOCAL">
+        <provider>org.eclipse.persistence.jpa.PersistenceProvider</provider>
+
+        <class>org.onap.policy.models.dao.converters.CDataConditioner</class>
+        <class>org.onap.policy.models.dao.converters.Uuid2String</class>
+        <class>org.onap.policy.models.base.PfConceptKey</class>
+        <class>org.onap.policy.models.tosca.simple.concepts.JpaToscaPolicyType</class>
+        <class>org.onap.policy.models.tosca.simple.concepts.JpaToscaPolicy</class>
+        <class>org.onap.policy.models.pdp.persistence.concepts.JpaPdpGroup</class>
+        <class>org.onap.policy.models.pdp.persistence.concepts.JpaPdpSubGroup</class>
+        <class>org.onap.policy.models.pdp.persistence.concepts.JpaPdp</class>
+
+        <properties>
+            <property name="javax.persistence.jdbc.driver" value="org.h2.Driver" />
+            <property name="javax.persistence.jdbc.url" value="jdbc:h2:mem:testdb" />
+            <property name="javax.persistence.jdbc.user" value="policy" />
+            <property name="javax.persistence.jdbc.password" value="P01icY" />
+            <property name="eclipselink.ddl-generation" value="drop-and-create-tables" />
+            <property name="eclipselink.ddl-generation.output-mode" value="database" />
+            <property name="eclipselink.logging.level" value="INFO" />
+        </properties>
+    </persistence-unit>
+
+    <persistence-unit name="ToscaConceptMariaDBTest" transaction-type="RESOURCE_LOCAL">
+        <provider>org.eclipse.persistence.jpa.PersistenceProvider</provider>
+
+        <class>org.onap.policy.models.dao.converters.CDataConditioner</class>
+        <class>org.onap.policy.models.dao.converters.Uuid2String</class>
+        <class>org.onap.policy.models.base.PfConceptKey</class>
+        <class>org.onap.policy.models.tosca.simple.concepts.JpaToscaPolicyType</class>
+        <class>org.onap.policy.models.tosca.simple.concepts.JpaToscaPolicy</class>
+        <class>org.onap.policy.models.pdp.persistence.concepts.JpaPdpGroup</class>
+        <class>org.onap.policy.models.pdp.persistence.concepts.JpaPdpSubGroup</class>
+        <class>org.onap.policy.models.pdp.persistence.concepts.JpaPdp</class>
+
+        <properties>
+            <property name="javax.persistence.jdbc.driver" value="org.mariadb.jdbc.Driver" />
+            <property name="javax.persistence.jdbc.url" value="jdbc:mariadb://localhost:3306/policy" />
+            <property name="javax.persistence.jdbc.user" value="policy" />
+            <property name="javax.persistence.jdbc.password" value="P01icY" />
+            <property name="javax.persistence.schema-generation.database.action" value="create" />
+
+            <property name="eclipselink.logging.level" value="ALL" />
+            <property name="eclipselink.logging.level.jpa" value="ALL" />
+            <property name="eclipselink.logging.level.ddl" value="ALL" />
+            <property name="eclipselink.logging.level.connection" value="ALL" />
+            <property name="eclipselink.logging.level.sql" value="ALL" />
+            <property name="eclipselink.logging.level.transaction" value="ALL" />
+            <property name="eclipselink.logging.level.sequencing" value="ALL" />
+            <property name="eclipselink.logging.level.server" value="ALL" />
+            <property name="eclipselink.logging.level.query" value="ALL" />
+            <property name="eclipselink.logging.level.properties" value="ALL" />
+
+            <property name="eclipselink.ddl-generation" value="drop-and-create-tables" />
+            <property name="eclipselink.ddl-generation.output-mode" value="database" />
+            <property name="eclipselink.logging.level" value="INFO" />
+        </properties>
+    </persistence-unit>
+</persistence>