Add Legacy Op Policy Persistence

Legacy operational policies now fully supported for
serialization and persistence from provider through to
database and back. Unit test coverage completed
also

Issue-ID: POLICY-1095
Change-Id: I65755859c94b50edee537d2685f51a7838c6541f
Signed-off-by: liamfallon <liam.fallon@est.tech>

3 files changed, 326 insertions, 4 deletions

diff --git a/models-provider/src/test/java/org/onap/policy/models/provider/impl/DatabasePolicyModelsProviderTest.java b/models-provider/src/test/java/org/onap/policy/models/provider/impl/DatabasePolicyModelsProviderTest.java
index c5dd8f03d..e4ecb9d1d 100644
--- a/models-provider/src/test/java/org/onap/policy/models/provider/impl/DatabasePolicyModelsProviderTest.java
+++ b/models-provider/src/test/java/org/onap/policy/models/provider/impl/DatabasePolicyModelsProviderTest.java
@@ -316,10 +316,30 @@ public class DatabasePolicyModelsProviderTest {
                 assertEquals("policy not found: NULL:0.0.0", npe.getMessage());
             }
 
-            assertNull(databaseProvider.getOperationalPolicy("policy_id"));
-            assertNull(databaseProvider.createOperationalPolicy(new LegacyOperationalPolicy()));
-            assertNull(databaseProvider.updateOperationalPolicy(new LegacyOperationalPolicy()));
-            assertNull(databaseProvider.deleteOperationalPolicy("policy_id"));
+            try {
+                assertNull(databaseProvider.getOperationalPolicy("policy_id"));
+                fail("test should throw an exception");
+            } catch (Exception npe) {
+                assertEquals("no policy found for policy ID: policy_id", npe.getMessage());
+            }
+            try {
+                assertNull(databaseProvider.createOperationalPolicy(new LegacyOperationalPolicy()));
+                fail("test should throw an exception");
+            } catch (Exception npe) {
+                assertEquals("name is marked @NonNull but is null", npe.getMessage());
+            }
+            try {
+                assertNull(databaseProvider.updateOperationalPolicy(new LegacyOperationalPolicy()));
+                fail("test should throw an exception");
+            } catch (Exception npe) {
+                assertEquals("no policy found for policy ID: null", npe.getMessage());
+            }
+            try {
+                assertNull(databaseProvider.deleteOperationalPolicy("policy_id"));
+                fail("test should throw an exception");
+            } catch (Exception npe) {
+                assertEquals("no policy found for policy ID: policy_id", npe.getMessage());
+            }
 
             assertNull(databaseProvider.getGuardPolicy("policy_id"));
             assertNull(databaseProvider.createGuardPolicy(new LegacyGuardPolicy()));
diff --git a/models-provider/src/test/java/org/onap/policy/models/provider/impl/PolicyLegacyOperationalPersistenceTest.java b/models-provider/src/test/java/org/onap/policy/models/provider/impl/PolicyLegacyOperationalPersistenceTest.java
new file mode 100644
index 000000000..90d00fc58
--- /dev/null
+++ b/models-provider/src/test/java/org/onap/policy/models/provider/impl/PolicyLegacyOperationalPersistenceTest.java
@@ -0,0 +1,143 @@
+/*-
+ * ============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=========================================================
+ */
+
+package org.onap.policy.models.provider.impl;
+
+import static org.junit.Assert.assertEquals;
+import static org.junit.Assert.assertNotNull;
+import static org.junit.Assert.fail;
+
+import com.google.gson.Gson;
+
+import java.util.Base64;
+
+import lombok.NonNull;
+
+import org.junit.After;
+import org.junit.Before;
+import org.junit.Test;
+import org.onap.policy.common.utils.resources.ResourceUtils;
+import org.onap.policy.models.base.PfModelException;
+import org.onap.policy.models.provider.PolicyModelsProvider;
+import org.onap.policy.models.provider.PolicyModelsProviderFactory;
+import org.onap.policy.models.provider.PolicyModelsProviderParameters;
+import org.onap.policy.models.tosca.legacy.concepts.LegacyOperationalPolicy;
+import org.slf4j.Logger;
+import org.slf4j.LoggerFactory;
+
+/**
+ * Test persistence of monitoring policies to and from the database.
+ *
+ * @author Liam Fallon (liam.fallon@est.tech)
+ */
+public class PolicyLegacyOperationalPersistenceTest {
+    // Logger for this class
+    private static final Logger LOGGER = LoggerFactory.getLogger(PolicyLegacyOperationalPersistenceTest.class);
+
+    private Gson gson;
+
+    private PolicyModelsProvider databaseProvider;
+
+    // @formatter:off
+    private String[] policyInputResourceNames = {
+        "policies/vCPE.policy.operational.input.json",
+        "policies/vDNS.policy.operational.input.json",
+        "policies/vFirewall.policy.operational.input.json"
+    };
+
+    private String[] policyOutputResourceNames = {
+        "policies/vCPE.policy.operational.output.json",
+        "policies/vDNS.policy.operational.output.json",
+        "policies/vFirewall.policy.operational.output.json"
+    };
+    // @formatter:on
+
+    /**
+     * Initialize provider.
+     *
+     * @throws PfModelException on exceptions in the tests
+     */
+    @Before
+    public void setupParameters() throws PfModelException {
+        PolicyModelsProviderParameters parameters = new PolicyModelsProviderParameters();
+        parameters.setDatabaseUrl("jdbc:h2:mem:testdb");
+        parameters.setDatabaseUser("policy");
+        parameters.setDatabasePassword(Base64.getEncoder().encodeToString("P01icY".getBytes()));
+        parameters.setPersistenceUnit("ToscaConceptTest");
+
+        databaseProvider = new PolicyModelsProviderFactory().createPolicyModelsProvider(parameters);
+        databaseProvider.init();
+    }
+
+    /**
+     * Set up GSON.
+     */
+    @Before
+    public void setupGson() {
+        gson = new Gson();
+    }
+
+    @After
+    public void teardown() throws Exception {
+        databaseProvider.close();
+    }
+
+    @Test
+    public void testPolicyPersistence() {
+        try {
+            for (int i = 0; i < policyInputResourceNames.length; i++) {
+                String policyInputString = ResourceUtils.getResourceAsString(policyInputResourceNames[i]);
+                String policyOutputString = ResourceUtils.getResourceAsString(policyOutputResourceNames[i]);
+                testJsonStringPolicyPersistence(policyInputString, policyOutputString);
+            }
+        } catch (Exception exc) {
+            LOGGER.warn("error processing policies", exc);
+            fail("test should not throw an exception");
+        }
+    }
+
+    /**
+     * Check persistence of a policy.
+     *
+     * @param policyInputString the policy as a string
+     * @param policyOutputString the expected output string
+     * @throws Exception any exception thrown
+     */
+    public void testJsonStringPolicyPersistence(@NonNull final String policyInputString,
+            final String policyOutputString) throws Exception {
+        LegacyOperationalPolicy lop = gson.fromJson(policyInputString, LegacyOperationalPolicy.class);
+
+        assertNotNull(lop);
+
+        LegacyOperationalPolicy createdLop = databaseProvider.createOperationalPolicy(lop);
+        assertEquals(createdLop, lop);
+
+        LegacyOperationalPolicy gotLop = databaseProvider.getOperationalPolicy(lop.getPolicyId());
+        assertEquals(gotLop, lop);
+
+        String actualRetrievedJson = gson.toJson(gotLop);
+
+        // All of this dash/underscore stuff is to avoid a checkstyle error around escaping unicode characters
+        assertEquals(
+                policyOutputString.replaceAll("\\s+", "").replaceAll("u0027", "_-_-_-_").replaceAll("\\\\_-_-_-_", "'"),
+                actualRetrievedJson.replaceAll("\\s+", "").replaceAll("u0027", "_-_-_-_").replaceAll("\\\\_-_-_-_",
+                        "'"));
+    }
+}
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
new file mode 100644
index 000000000..a4b1dcd03
--- /dev/null
+++ b/models-provider/src/test/java/org/onap/policy/models/provider/impl/PolicyToscaPersistenceTest.java
@@ -0,0 +1,159 @@
+/*-
+ * ============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=========================================================
+ */
+
+package org.onap.policy.models.provider.impl;
+
+import static org.junit.Assert.assertEquals;
+import static org.junit.Assert.assertNotNull;
+import static org.junit.Assert.assertTrue;
+import static org.junit.Assert.fail;
+
+import com.google.gson.Gson;
+import com.google.gson.GsonBuilder;
+
+import java.util.Base64;
+
+import lombok.NonNull;
+
+import org.junit.After;
+import org.junit.Before;
+import org.junit.Test;
+import org.onap.policy.common.utils.resources.ResourceUtils;
+import org.onap.policy.models.base.PfConceptKey;
+import org.onap.policy.models.base.PfModelException;
+import org.onap.policy.models.base.PfValidationResult;
+import org.onap.policy.models.provider.PolicyModelsProvider;
+import org.onap.policy.models.provider.PolicyModelsProviderFactory;
+import org.onap.policy.models.provider.PolicyModelsProviderParameters;
+import org.onap.policy.models.tosca.simple.concepts.ToscaPolicy;
+import org.onap.policy.models.tosca.simple.concepts.ToscaServiceTemplate;
+import org.onap.policy.models.tosca.simple.serialization.ToscaServiceTemplateMessageBodyHandler;
+import org.slf4j.Logger;
+import org.slf4j.LoggerFactory;
+import org.yaml.snakeyaml.Yaml;
+
+/**
+ * Test persistence of monitoring policies to and from the database.
+ *
+ * @author Liam Fallon (liam.fallon@est.tech)
+ */
+public class PolicyToscaPersistenceTest {
+    // Logger for this class
+    private static final Logger LOGGER = LoggerFactory.getLogger(PolicyToscaPersistenceTest.class);
+
+    private Gson gson;
+
+    private PolicyModelsProvider databaseProvider;
+
+    // @formatter:off
+    private String[] policyResourceNames = {
+        "policies/vCPE.policy.monitoring.input.tosca.json",
+        "policies/vCPE.policy.monitoring.input.tosca.yaml",
+        "policies/vCPE.policy.operational.input.tosca.yaml",
+        "policies/vDNS.policy.guard.frequency.input.tosca.json",
+        "policies/vDNS.policy.guard.frequency.input.tosca.yaml",
+        "policies/vDNS.policy.monitoring.input.tosca.json",
+        "policies/vDNS.policy.monitoring.input.tosca.yaml",
+        "policies/vDNS.policy.operational.input.tosca.yaml",
+        "policies/vFirewall.policy.monitoring.input.tosca.json",
+        "policies/vFirewall.policy.monitoring.input.tosca.yaml",
+        "policies/vFirewall.policy.operational.input.tosca.json",
+        "policies/vFirewall.policy.operational.input.tosca.yaml"
+    };
+    // @formatter:on
+
+    /**
+     * Initialize provider.
+     *
+     * @throws PfModelException on exceptions in the tests
+     */
+    @Before
+    public void setupParameters() throws PfModelException {
+        PolicyModelsProviderParameters parameters = new PolicyModelsProviderParameters();
+        parameters.setDatabaseUrl("jdbc:h2:mem:testdb");
+        parameters.setDatabaseUser("policy");
+        parameters.setDatabasePassword(Base64.getEncoder().encodeToString("P01icY".getBytes()));
+        parameters.setPersistenceUnit("ToscaConceptTest");
+
+        databaseProvider = new PolicyModelsProviderFactory().createPolicyModelsProvider(parameters);
+        databaseProvider.init();
+    }
+
+    /**
+     * Set up GSON.
+     */
+    @Before
+    public void setupGson() {
+        gson = new ToscaServiceTemplateMessageBodyHandler().getGson();
+    }
+
+    @After
+    public void teardown() throws Exception {
+        databaseProvider.close();
+    }
+
+    @Test
+    public void testPolicyPersistence() {
+        try {
+            for (String policyResourceName : policyResourceNames) {
+                String policyString = ResourceUtils.getResourceAsString(policyResourceName);
+
+                if (policyResourceName.endsWith("yaml")) {
+                    testYamlStringPolicyPersistence(policyString);
+                } else {
+                    testJsonStringPolicyPersistence(policyString);
+                }
+            }
+        } catch (Exception exc) {
+            LOGGER.warn("error processing policies", exc);
+            fail("test should not throw an exception");
+        }
+    }
+
+    private void testYamlStringPolicyPersistence(final String policyString) throws Exception {
+        Object yamlObject = new Yaml().load(policyString);
+        String yamlAsJsonString = new GsonBuilder().setPrettyPrinting().create().toJson(yamlObject);
+
+        testJsonStringPolicyPersistence(yamlAsJsonString);
+    }
+
+    /**
+     * Check persistence of a policy.
+     *
+     * @param policyString the policy as a string
+     * @throws Exception any exception thrown
+     */
+    public void testJsonStringPolicyPersistence(@NonNull final String policyString) throws Exception {
+        ToscaServiceTemplate serviceTemplate = gson.fromJson(policyString, ToscaServiceTemplate.class);
+
+        assertNotNull(serviceTemplate);
+        LOGGER.info(serviceTemplate.validate(new PfValidationResult()).toString());
+        assertTrue(serviceTemplate.validate(new PfValidationResult()).isValid());
+
+        databaseProvider.createPolicies(serviceTemplate);
+
+        for (PfConceptKey policyKey : serviceTemplate.getTopologyTemplate().getPolicies().getConceptMap().keySet()) {
+            ToscaPolicy incomingPolicy = serviceTemplate.getTopologyTemplate().getPolicies().get(policyKey);
+            ToscaPolicy databasePolicy =
+                    databaseProvider.getPolicies(policyKey).getTopologyTemplate().getPolicies().get(policyKey);
+            assertEquals(incomingPolicy, databasePolicy);
+        }
+    }
+}