Add feature-session-persistence

This commit adds the feature-session-persistence module
which will persist drools session data to allow stateful
transactions which can persist across node restarts and
failovers. It also picks up recent changes to the master
branch to avoid merge conflicts.

Issue-ID: POLICY-133
Change-Id: Ifdcd8280ea6df07db79562f1b01fa90296a8b878
Signed-off-by: Kevin McKiou <km097d@att.com>

3 files changed, 67 insertions, 0 deletions

diff --git a/feature-session-persistence/src/main/resources/META-INF/persistence.xml b/feature-session-persistence/src/main/resources/META-INF/persistence.xml
new file mode 100644
index 00000000..7ddd2fd3
--- /dev/null
+++ b/feature-session-persistence/src/main/resources/META-INF/persistence.xml
@@ -0,0 +1,65 @@
+<?xml version="1.0" encoding="UTF-8"?>
+<!--
+  ============LICENSE_START=======================================================
+  policy-core
+  ================================================================================
+  Copyright (C) 2017 AT&T Intellectual Property. 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.
+  ============LICENSE_END=========================================================
+  -->
+
+<persistence version="2.1"
+	xmlns="http://xmlns.jcp.org/xml/ns/persistence" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
+	xsi:schemaLocation="http://xmlns.jcp.org/xml/ns/persistence http://xmlns.jcp.org/xml/ns/persistence/persistence_2_1.xsd">
+
+	<persistence-unit name="onapPU" transaction-type="RESOURCE_LOCAL">
+	<!-- This is for database access by non-drools methods -->
+		<provider>org.eclipse.persistence.jpa.PersistenceProvider</provider>
+		<class>org.onap.policy.drools.persistence.DroolsSessionEntity</class>
+		<class>org.drools.persistence.info.SessionInfo</class>
+		<class>org.drools.persistence.info.WorkItemInfo</class>
+		<properties>
+			<!-- Properties are passed in -->
+        </properties>
+	</persistence-unit>
+	
+	<persistence-unit name="onapsessionsPU" transaction-type="JTA">
+	<!-- Used for drools session data access -->
+		<provider>org.hibernate.jpa.HibernatePersistenceProvider</provider>		
+		<class>org.drools.persistence.info.SessionInfo</class>
+		<class>org.drools.persistence.info.WorkItemInfo</class>
+		<properties>
+			<property name="hibernate.dialect" value="org.hibernate.dialect.MariaDBDialect" />
+			<property name="hibernate.max_fetch_depth" value="3" />
+			<property name="hibernate.hbm2ddl.auto" value="update" />
+			<property name="hibernate.show_sql" value="false" />
+			<property name="hibernate.transaction.manager_lookup_class"
+				value="org.hibernate.transaction.BTMTransactionManagerLookup" />
+		</properties>
+	</persistence-unit>
+	
+	<persistence-unit name="schemaDroolsPU" transaction-type="RESOURCE_LOCAL">
+	<!-- Limited use for generating the DB and schema files for drools DB - uses eclipselink for convenience -->
+		<provider>org.eclipse.persistence.jpa.PersistenceProvider</provider>
+		<class>org.onap.policy.drools.persistence.DroolsSessionEntity</class>
+		<class>org.drools.persistence.info.SessionInfo</class>
+		<class>org.drools.persistence.info.WorkItemInfo</class>
+		<properties>
+			<property name="javax.persistence.schema-generation.scripts.action" value="drop-and-create"/> 
+            <property name="javax.persistence.schema-generation.scripts.create-target" value="sql/generatedCreateDrools.ddl"/>
+            <property name="javax.persistence.schema-generation.scripts.drop-target" value="sql/generatedDropDrools.ddl"/>
+        </properties>
+	</persistence-unit>
+	
+</persistence>
diff --git a/feature-session-persistence/src/main/resources/META-INF/services/org.onap.policy.drools.core.PolicySessionFeatureAPI b/feature-session-persistence/src/main/resources/META-INF/services/org.onap.policy.drools.core.PolicySessionFeatureAPI
new file mode 100644
index 00000000..26366fd3
--- /dev/null
+++ b/feature-session-persistence/src/main/resources/META-INF/services/org.onap.policy.drools.core.PolicySessionFeatureAPI
@@ -0,0 +1 @@
+org.onap.policy.drools.persistence.PersistenceFeature
diff --git a/feature-session-persistence/src/main/resources/META-INF/services/org.onap.policy.drools.features.PolicyEngineFeatureAPI b/feature-session-persistence/src/main/resources/META-INF/services/org.onap.policy.drools.features.PolicyEngineFeatureAPI
new file mode 100644
index 00000000..26366fd3
--- /dev/null
+++ b/feature-session-persistence/src/main/resources/META-INF/services/org.onap.policy.drools.features.PolicyEngineFeatureAPI
@@ -0,0 +1 @@
+org.onap.policy.drools.persistence.PersistenceFeature