/*
 * Copyright (c) 2016, 2017 Brocade Communications Systems, Inc. and others.  All rights reserved.
 *
 * This program and the accompanying materials are made available under the
 * terms of the Eclipse Public License v1.0 which accompanies this distribution,
 * and is available at http://www.eclipse.org/legal/epl-v10.html
 */

package org.opendaylight.netvirt.sfc.translator;

import com.google.common.util.concurrent.CheckedFuture;
import org.opendaylight.controller.md.sal.binding.api.DataBroker;
import org.opendaylight.controller.md.sal.binding.api.WriteTransaction;
import org.opendaylight.controller.md.sal.common.api.data.LogicalDatastoreType;
import org.opendaylight.controller.md.sal.common.api.data.TransactionCommitFailedException;
import org.opendaylight.yangtools.yang.binding.InstanceIdentifier;
import org.slf4j.Logger;
import org.slf4j.LoggerFactory;

public class MdsalUtils {
    private static final Logger LOG = LoggerFactory.getLogger(MdsalUtils.class);
    private DataBroker databroker = null;

    /**
     * Class constructor setting the data broker.
     *
     * @param dataBroker the {@link DataBroker}
     */
    public MdsalUtils(DataBroker dataBroker) {
        this.databroker = dataBroker;
    }

    /**
     * Executes put as a blocking transaction.
     *
     * @param logicalDatastoreType {@link LogicalDatastoreType} which should be modified
     * @param path {@link InstanceIdentifier} for path to read
     * @param <D> the data object type
     * @return the result of the request
     */
    public <D extends org.opendaylight.yangtools.yang.binding.DataObject> boolean put(
            final LogicalDatastoreType logicalDatastoreType, final InstanceIdentifier<D> path, D data)  {
        boolean result = false;
        final WriteTransaction transaction = databroker.newWriteOnlyTransaction();
        transaction.put(logicalDatastoreType, path, data, WriteTransaction.CREATE_MISSING_PARENTS);
        CheckedFuture<Void, TransactionCommitFailedException> future = transaction.submit();
        try {
            future.checkedGet();
            result = true;
        } catch (TransactionCommitFailedException e) {
            LOG.warn("Failed to put {} ", path, e);
        }
        return result;
    }
}