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/*-
* ============LICENSE_START=======================================================
* Copyright (C) 2019 Nordix Foundation.
* Modifications Copyright (C) 2019 AT&T Intellectual Property.
* ================================================================================
* 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.parameters.ValidationResult;
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());
if (pdpGroupsFromDb.isEmpty()) {
ValidationResult result = pdpGroupsToCreate.validatePapRest();
if (!result.isValid()) {
throw new PolicyPapException(result.getResult());
}
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);
}
}
}
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