Fix write failure on PDP statistics

Due to the precision of time stamps being saved to the nearest second,
a millisecond precision timestamp was being compared to a second
precision timestamp, causing the write to fail. This change fixes that.

A unit test is also added to test for this on the provider.

In addition, a USE-MARIADB flag is being introduced, which allows unit
tests to be run against a locally installed MariaDB instance so that the
unit tests can be verified against MariaDB locally rather than H2, the
default in Gerrit.

Issue-ID: POLICY-3146
Change-Id: I878f160956e89506743dc074679ee81ac1c48216
Signed-off-by: liamfallon <liam.fallon@est.tech>
(cherry picked from commit d6db5582b6705c11abbf8b507aa423aa00bcd7ae)

4 files changed, 108 insertions, 6 deletions

diff --git a/models-provider/src/test/java/org/onap/policy/models/provider/impl/PolicyStatisticsPersistenceTest.java b/models-provider/src/test/java/org/onap/policy/models/provider/impl/PolicyStatisticsPersistenceTest.java
new file mode 100644
index 000000000..160eeabb0
--- /dev/null
+++ b/models-provider/src/test/java/org/onap/policy/models/provider/impl/PolicyStatisticsPersistenceTest.java
@@ -0,0 +1,86 @@
+/*-
+ * ============LICENSE_START=======================================================
+ *  Copyright (C) 2021 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=========================================================
+ */
+
+package org.onap.policy.models.provider.impl;
+
+import static org.assertj.core.api.Assertions.assertThatCode;
+
+import java.time.Instant;
+import java.util.Arrays;
+import org.junit.Test;
+import org.onap.policy.models.base.PfModelException;
+import org.onap.policy.models.pdp.concepts.PdpStatistics;
+import org.onap.policy.models.provider.PolicyModelsProvider;
+import org.onap.policy.models.provider.PolicyModelsProviderFactory;
+import org.onap.policy.models.provider.PolicyModelsProviderParameters;
+
+/**
+ * Test persistence of PDP statistics to and from the database.
+ */
+public class PolicyStatisticsPersistenceTest {
+
+    @Test
+    public void testPdpStatiscticsPersistence() throws PfModelException {
+        // Try the test on three providers
+        for (int i = 0; i < 3; i++) {
+            PolicyModelsProvider databaseProvider = setupProvider();
+            testPdpStatiscticsPersistenceOneProvider(databaseProvider);
+            databaseProvider.close();
+        }
+    }
+
+    public void testPdpStatiscticsPersistenceOneProvider(PolicyModelsProvider databaseProvider) {
+        PdpStatistics pdpStatistics = new PdpStatistics();
+        pdpStatistics.setPdpInstanceId("TheInstance");
+        pdpStatistics.setTimeStamp(Instant.now());
+
+        // Try creating three identical statistics instances
+        for (int i = 0; i < 3; i++) {
+            assertThatCode(() -> databaseProvider.createPdpStatistics(Arrays.asList(pdpStatistics)))
+                .doesNotThrowAnyException();
+        }
+
+        // Try creating three statistics instances with timestams incremented
+        for (int i = 0; i < 3; i++) {
+            pdpStatistics.setTimeStamp(pdpStatistics.getTimeStamp().plusSeconds(1));
+
+            assertThatCode(() -> databaseProvider.createPdpStatistics(Arrays.asList(pdpStatistics)))
+                .doesNotThrowAnyException();
+        }
+    }
+
+    private PolicyModelsProvider setupProvider() throws PfModelException {
+        PolicyModelsProviderParameters parameters = new PolicyModelsProviderParameters();
+
+        if (System.getProperty("USE-MARIADB") != null) {
+            parameters.setDatabaseDriver("org.mariadb.jdbc.Driver");
+            parameters.setDatabaseUrl("jdbc:mariadb://localhost:3306/policy");
+        } else {
+            parameters.setDatabaseDriver("org.h2.Driver");
+            parameters.setDatabaseUrl("jdbc:h2:mem:testdb");
+        }
+
+        parameters.setDatabaseUser("policy");
+        parameters.setDatabasePassword("P01icY");
+        parameters.setPersistenceUnit("ToscaConceptTest");
+
+        return new PolicyModelsProviderFactory().createPolicyModelsProvider(parameters);
+    }
+}
diff --git a/models-provider/src/test/java/org/onap/policy/models/provider/impl/PolicyToscaPersistenceTest.java b/models-provider/src/test/java/org/onap/policy/models/provider/impl/PolicyToscaPersistenceTest.java
index ac62569b3..2c07091c7 100644
--- a/models-provider/src/test/java/org/onap/policy/models/provider/impl/PolicyToscaPersistenceTest.java
+++ b/models-provider/src/test/java/org/onap/policy/models/provider/impl/PolicyToscaPersistenceTest.java
@@ -76,12 +76,20 @@ public class PolicyToscaPersistenceTest {
         // H2, use "org.mariadb.jdbc.Driver" and "jdbc:mariadb://localhost:3306/policy" for locally installed MariaDB
 
         PolicyModelsProviderParameters parameters = new PolicyModelsProviderParameters();
-        parameters.setDatabaseDriver("org.h2.Driver");
-        parameters.setDatabaseUrl("jdbc:h2:mem:testdb");
+
+        if (System.getProperty("USE-MARIADB") != null) {
+            parameters.setDatabaseDriver("org.mariadb.jdbc.Driver");
+            parameters.setDatabaseUrl("jdbc:mariadb://localhost:3306/policy");
+        } else {
+            parameters.setDatabaseDriver("org.h2.Driver");
+            parameters.setDatabaseUrl("jdbc:h2:mem:testdb");
+        }
+
         parameters.setDatabaseUser("policy");
         parameters.setDatabasePassword("P01icY");
         parameters.setPersistenceUnit("ToscaConceptTest");
 
+
         databaseProvider = new PolicyModelsProviderFactory().createPolicyModelsProvider(parameters);
 
         createPolicyTypes();
diff --git a/models-provider/src/test/java/org/onap/policy/models/provider/impl/PolicyTypePersistenceTest.java b/models-provider/src/test/java/org/onap/policy/models/provider/impl/PolicyTypePersistenceTest.java
index 61bf13ac6..2a7d83438 100644
--- a/models-provider/src/test/java/org/onap/policy/models/provider/impl/PolicyTypePersistenceTest.java
+++ b/models-provider/src/test/java/org/onap/policy/models/provider/impl/PolicyTypePersistenceTest.java
@@ -1,6 +1,6 @@
 /*-
  * ============LICENSE_START=======================================================
- *  Copyright (C) 2019-2020 Nordix Foundation.
+ *  Copyright (C) 2019-2021 Nordix Foundation.
  *  Modifications Copyright (C) 2020 Bell Canada. All rights reserved.
  * ================================================================================
  * Licensed under the Apache License, Version 2.0 (the "License");
@@ -61,8 +61,15 @@ public class PolicyTypePersistenceTest {
         // H2, use "org.mariadb.jdbc.Driver" and "jdbc:mariadb://localhost:3306/policy" for locally installed MariaDB
 
         PolicyModelsProviderParameters parameters = new PolicyModelsProviderParameters();
-        parameters.setDatabaseDriver("org.h2.Driver");
-        parameters.setDatabaseUrl("jdbc:h2:mem:testdb");
+
+        if (System.getProperty("USE-MARIADB") != null) {
+            parameters.setDatabaseDriver("org.mariadb.jdbc.Driver");
+            parameters.setDatabaseUrl("jdbc:mariadb://localhost:3306/policy");
+        } else {
+            parameters.setDatabaseDriver("org.h2.Driver");
+            parameters.setDatabaseUrl("jdbc:h2:mem:testdb");
+        }
+
         parameters.setDatabaseUser("policy");
         parameters.setDatabasePassword("P01icY");
         parameters.setPersistenceUnit("ToscaConceptTest");
diff --git a/models-provider/src/test/resources/META-INF/persistence.xml b/models-provider/src/test/resources/META-INF/persistence.xml
index d9e1b5fbf..249b29aae 100644
--- a/models-provider/src/test/resources/META-INF/persistence.xml
+++ b/models-provider/src/test/resources/META-INF/persistence.xml
@@ -1,7 +1,7 @@
 <?xml version="1.0" encoding="UTF-8"?>
 <!--
   ============LICENSE_START=======================================================
-   Copyright (C) 2019-2020 Nordix Foundation.
+   Copyright (C) 2019-2021 Nordix Foundation.
    Modifications Copyright (C) 2021 AT&T Intellectual Property. All rights reserved.
   ================================================================================
   Licensed under the Apache License, Version 2.0 (the "License");
@@ -57,6 +57,7 @@
         <class>org.onap.policy.models.tosca.simple.concepts.JpaToscaTrigger</class>
 
         <properties>
+            <property name="eclipselink.target-database" value="MySQL" />
             <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" />