/**
 * Copyright (c) 2015 Cisco 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.openflowplugin.impl.statistics.services;

import java.util.List;
import java.util.concurrent.atomic.AtomicLong;
import org.opendaylight.openflowplugin.api.openflow.device.DeviceContext;
import org.opendaylight.openflowplugin.api.openflow.device.RequestContextStack;
import org.opendaylight.openflowplugin.api.openflow.device.Xid;
import org.opendaylight.openflowplugin.impl.services.RequestInputUtils;
import org.opendaylight.openflowplugin.impl.statistics.services.compatibility.AbstractCompatibleStatService;
import org.opendaylight.openflowplugin.impl.statistics.services.compatibility.MeterStatisticsToNotificationTransformer;
import org.opendaylight.yang.gen.v1.urn.opendaylight.flow.transaction.rev150304.TransactionId;
import org.opendaylight.yang.gen.v1.urn.opendaylight.meter.statistics.rev131111.GetMeterStatisticsInput;
import org.opendaylight.yang.gen.v1.urn.opendaylight.meter.statistics.rev131111.GetMeterStatisticsOutput;
import org.opendaylight.yang.gen.v1.urn.opendaylight.meter.statistics.rev131111.GetMeterStatisticsOutputBuilder;
import org.opendaylight.yang.gen.v1.urn.opendaylight.meter.statistics.rev131111.MeterStatisticsUpdated;
import org.opendaylight.yang.gen.v1.urn.opendaylight.openflow.common.types.rev130731.MeterId;
import org.opendaylight.yang.gen.v1.urn.opendaylight.openflow.common.types.rev130731.MultipartType;
import org.opendaylight.yang.gen.v1.urn.opendaylight.openflow.protocol.rev130731.MultipartReply;
import org.opendaylight.yang.gen.v1.urn.opendaylight.openflow.protocol.rev130731.MultipartRequestInputBuilder;
import org.opendaylight.yang.gen.v1.urn.opendaylight.openflow.protocol.rev130731.OfHeader;
import org.opendaylight.yang.gen.v1.urn.opendaylight.openflow.protocol.rev130731.multipart.request.multipart.request.body.MultipartRequestMeterCaseBuilder;
import org.opendaylight.yang.gen.v1.urn.opendaylight.openflow.protocol.rev130731.multipart.request.multipart.request.body.multipart.request.meter._case.MultipartRequestMeterBuilder;

final class MeterStatsService
        extends AbstractCompatibleStatService<GetMeterStatisticsInput, GetMeterStatisticsOutput, MeterStatisticsUpdated> {

    public MeterStatsService(RequestContextStack requestContextStack, DeviceContext deviceContext, AtomicLong compatibilityXidSeed) {
        super(requestContextStack, deviceContext, compatibilityXidSeed);
    }

    @Override
    protected OfHeader buildRequest(final Xid xid, final GetMeterStatisticsInput input) {
        MultipartRequestMeterCaseBuilder caseBuilder =
                new MultipartRequestMeterCaseBuilder();
        MultipartRequestMeterBuilder mprMeterBuild =
                new MultipartRequestMeterBuilder();
        mprMeterBuild.setMeterId(new MeterId(input.getMeterId().getValue()));
        caseBuilder.setMultipartRequestMeter(mprMeterBuild.build());

        MultipartRequestInputBuilder mprInput =
                RequestInputUtils.createMultipartHeader(MultipartType.OFPMPMETER, xid.getValue(), getVersion());
        mprInput.setMultipartRequestBody(caseBuilder.build());
        return mprInput.build();
    }

    @Override
    public GetMeterStatisticsOutput buildTxCapableResult(TransactionId emulatedTxId) {
        return new GetMeterStatisticsOutputBuilder().setTransactionId(emulatedTxId).build();
    }

    @Override
    public MeterStatisticsUpdated transformToNotification(List<MultipartReply> result, TransactionId emulatedTxId) {
        return MeterStatisticsToNotificationTransformer.transformToNotification(result, getDeviceContext().getDeviceState(), getOfVersion(), emulatedTxId);
    }
}