1 files changed, 83 insertions, 0 deletions
diff --git a/main/src/main/java/org/onap/policy/pap/main/startstop/PapDatabaseInitializer.java b/main/src/main/java/org/onap/policy/pap/main/startstop/PapDatabaseInitializer.java
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+++ b/main/src/main/java/org/onap/policy/pap/main/startstop/PapDatabaseInitializer.java
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+/*-
+ * ============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.pap.main.startstop;
+
+import java.util.List;
+
+import org.onap.policy.common.utils.coder.CoderException;
+import org.onap.policy.common.utils.coder.StandardCoder;
+import org.onap.policy.common.utils.resources.ResourceUtils;
+import org.onap.policy.models.base.PfModelException;
+import org.onap.policy.models.pdp.concepts.PdpGroup;
+import org.onap.policy.models.pdp.concepts.PdpGroups;
+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.pap.main.PolicyPapException;
+import org.slf4j.Logger;
+import org.slf4j.LoggerFactory;
+
+/**
+ * This class creates initial PdpGroup/SubGroup in the database.
+ *
+ * @author Ram Krishna Verma (ram.krishna.verma@est.tech)
+ */
+public class PapDatabaseInitializer {
+
+    private static final Logger LOGGER = LoggerFactory.getLogger(PapDatabaseInitializer.class);
+
+    private StandardCoder standardCoder;
+    private PolicyModelsProviderFactory factory;
+
+    /**
+     * Constructs the object.
+     */
+    public PapDatabaseInitializer() {
+        factory = new PolicyModelsProviderFactory();
+        standardCoder = new StandardCoder();
+    }
+
+    /**
+     * Initializes database.
+     *
+     * @param policyModelsProviderParameters the database parameters
+     * @throws PolicyPapException in case of errors.
+     */
+    public void initializePapDatabase(final PolicyModelsProviderParameters policyModelsProviderParameters)
+            throws PolicyPapException {
+
+        try (PolicyModelsProvider databaseProvider =
+                factory.createPolicyModelsProvider(policyModelsProviderParameters)) {
+            final String originalJson = ResourceUtils.getResourceAsString("PapDb.json");
+            final PdpGroups pdpGroupsToCreate = standardCoder.decode(originalJson, PdpGroups.class);
+            final List<PdpGroup> pdpGroupsFromDb = databaseProvider.getPdpGroups(
+                    pdpGroupsToCreate.getGroups().get(0).getName(), pdpGroupsToCreate.getGroups().get(0).getVersion());
+            if (pdpGroupsFromDb.isEmpty()) {
+                databaseProvider.createPdpGroups(pdpGroupsToCreate.getGroups());
+                LOGGER.debug("Created initial pdpGroup in DB - {}", pdpGroupsToCreate);
+            } else {
+                LOGGER.debug("Initial pdpGroup already exists in DB, skipping create - {}", pdpGroupsFromDb);
+            }
+        } catch (final PfModelException | CoderException exp) {
+            throw new PolicyPapException(exp);
+        }
+    }
+}