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/*-
* ============LICENSE_START=======================================================
* openECOMP : SDN-C
* ================================================================================
* 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=========================================================
*/
package org.onap.sdnc.northbound.util;
import java.util.Optional;
import com.google.common.util.concurrent.FluentFuture;
import com.google.common.util.concurrent.Futures;
import com.google.common.util.concurrent.ListenableFuture;
import org.eclipse.jdt.annotation.NonNull;
import org.opendaylight.mdsal.binding.api.DataBroker;
import org.opendaylight.mdsal.binding.api.NotificationPublishService;
import org.opendaylight.mdsal.binding.api.ReadTransaction;
import org.opendaylight.mdsal.binding.api.RpcProviderService;
import org.opendaylight.mdsal.binding.api.WriteTransaction;
import org.opendaylight.mdsal.common.api.LogicalDatastoreType;
import org.opendaylight.yang.gen.v1.org.onap.sdnc.northbound.generic.resource.rev170824.Services;
import org.opendaylight.yang.gen.v1.org.onap.sdnc.northbound.generic.resource.rev170824.service.data.ServiceDataBuilder;
import org.opendaylight.yang.gen.v1.org.onap.sdnc.northbound.generic.resource.rev170824.service.level.oper.status.ServiceLevelOperStatusBuilder;
import org.opendaylight.yang.gen.v1.org.onap.sdnc.northbound.generic.resource.rev170824.service.model.infrastructure.Service;
import org.opendaylight.yang.gen.v1.org.onap.sdnc.northbound.generic.resource.rev170824.service.model.infrastructure.ServiceBuilder;
import org.opendaylight.yang.gen.v1.org.onap.sdnc.northbound.generic.resource.rev170824.service.model.infrastructure.ServiceKey;
import org.opendaylight.yang.gen.v1.org.onap.sdnc.northbound.generic.resource.rev170824.service.status.ServiceStatusBuilder;
import org.opendaylight.yangtools.yang.binding.InstanceIdentifier;
import static org.onap.sdnc.northbound.util.MDSALUtil.build;
/**
* This util class provides utility to read and write {@link Service} data objects from the {@link DataBroker}
*
*/
public class DataBrokerUtil {
private final DataBroker dataBroker;
public DataBrokerUtil(DataBroker dataBroker) {
this.dataBroker = dataBroker;
}
/** @return Service - the Service object read from the DataBroker or null if none was found */
public Service read(String serviceKey, LogicalDatastoreType logicalDatastoreType) throws Exception {
InstanceIdentifier serviceInstanceIdentifier = InstanceIdentifier.<Services>builder(Services.class)
.child(Service.class, new ServiceKey(serviceKey)).build();
ReadTransaction readTx = dataBroker.newReadOnlyTransaction();
Optional<Service> data = (Optional<Service>) readTx.read(logicalDatastoreType, serviceInstanceIdentifier).get();
if(!data.isPresent()){
return null;
}
//The toString() value from a Service object returned form data.get() is different than the toString() value
//from a Service Object constructed from a Builder. This makes it difficult to compare deltas when doing a
// assertEquals. That why we rebuild it her to solve that problem.
return build(ServiceBuilder::new,data.get(),(service) -> service
.setServiceStatus(build(ServiceStatusBuilder::new,service.getServiceStatus()))
.setServiceData(build(ServiceDataBuilder::new,service.getServiceData(),(serviceStatus)->serviceStatus
.setServiceLevelOperStatus(build(ServiceLevelOperStatusBuilder::new,serviceStatus.getServiceLevelOperStatus()))
))
);
}
/**
* Write the {@link Service} object to the {@link DataBroker}
* @param isReplace - false specifies the new data is to be merged into existing data, where as true cause the
* existing data to be replaced.
* @param service - the {@link Service} data object to be presisted in the db.
* @param logicalDatastoreType - The logicalDatastoreType
*/
public void write(boolean isReplace,Service service, LogicalDatastoreType logicalDatastoreType) throws Exception {
// Each entry will be identifiable by a unique key, we have to create that
// identifier
InstanceIdentifier.InstanceIdentifierBuilder<Service> serviceBuilder = InstanceIdentifier
.<Services>builder(Services.class).child(Service.class, service.key());
InstanceIdentifier<Service> path = serviceBuilder.build();
WriteTransaction tx = dataBroker.newWriteOnlyTransaction();
if (!isReplace) {
tx.merge(logicalDatastoreType, path, service);
} else {
tx.put(logicalDatastoreType, path, service);
}
tx.commit().get();
}
}
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