/**
 * 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 org.opendaylight.openflowplugin.api.OFConstants;
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.AbstractSimpleService;
import org.opendaylight.openflowplugin.impl.services.RequestInputUtils;
import org.opendaylight.openflowplugin.openflow.md.core.sal.convertor.match.MatchReactor;
import org.opendaylight.yang.gen.v1.urn.opendaylight.flow.statistics.rev130819.GetFlowStatisticsFromFlowTableInput;
import org.opendaylight.yang.gen.v1.urn.opendaylight.flow.statistics.rev130819.GetFlowStatisticsFromFlowTableOutput;
import org.opendaylight.yang.gen.v1.urn.opendaylight.openflow.common.types.rev130731.MultipartType;
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.MultipartRequestFlowCaseBuilder;
import org.opendaylight.yang.gen.v1.urn.opendaylight.openflow.protocol.rev130731.multipart.request.multipart.request.body.multipart.request.flow._case.MultipartRequestFlowBuilder;

final class FlowsInTableService extends AbstractSimpleService<GetFlowStatisticsFromFlowTableInput, GetFlowStatisticsFromFlowTableOutput> {
    FlowsInTableService(final RequestContextStack requestContextStack, final DeviceContext deviceContext) {
        super(requestContextStack, deviceContext, GetFlowStatisticsFromFlowTableOutput.class);
    }

    @Override
    protected OfHeader buildRequest(final Xid xid, final GetFlowStatisticsFromFlowTableInput input) {
        final MultipartRequestFlowCaseBuilder multipartRequestFlowCaseBuilder = new MultipartRequestFlowCaseBuilder();
        final MultipartRequestFlowBuilder mprFlowRequestBuilder = new MultipartRequestFlowBuilder();
        mprFlowRequestBuilder.setTableId(input.getTableId());

        if (input.getOutPort() != null) {
            mprFlowRequestBuilder.setOutPort(input.getOutPort().longValue());
        } else {
            mprFlowRequestBuilder.setOutPort(OFConstants.OFPP_ANY);
        }

        if (input.getOutGroup() != null) {
            mprFlowRequestBuilder.setOutGroup(input.getOutGroup());
        } else {
            mprFlowRequestBuilder.setOutGroup(OFConstants.OFPG_ANY);
        }

        if (input.getCookie() != null) {
            mprFlowRequestBuilder.setCookie(input.getCookie().getValue());
        } else {
            mprFlowRequestBuilder.setCookie(OFConstants.DEFAULT_COOKIE);
        }

        if (input.getCookieMask() != null) {
            mprFlowRequestBuilder.setCookieMask(input.getCookieMask().getValue());
        } else {
            mprFlowRequestBuilder.setCookieMask(OFConstants.DEFAULT_COOKIE_MASK);
        }

        // convert and inject match
        final short version = getVersion();
        final DeviceContext deviceContext = getDeviceContext();
        MatchReactor.getInstance().convert(input.getMatch(), version, mprFlowRequestBuilder,
                deviceContext.getPrimaryConnectionContext().getFeatures().getDatapathId());

        // Set request body to main multipart request
        multipartRequestFlowCaseBuilder.setMultipartRequestFlow(mprFlowRequestBuilder.build());
        final MultipartRequestInputBuilder mprInput = RequestInputUtils.createMultipartHeader(
                MultipartType.OFPMPFLOW, xid.getValue(), version);
        mprInput.setMultipartRequestBody(multipartRequestFlowCaseBuilder.build());

        return mprInput.build();
    }
}