org.opendaylight.openflowjava.protocol.impl.serialization.factories.OF10FeaturesReplyMessageFactory.java Source code

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/*
 * Copyright (c) 2015 NetIDE Consortium 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.openflowjava.protocol.impl.serialization.factories;

import io.netty.buffer.ByteBuf;
import java.util.HashMap;
import java.util.Map;
import org.opendaylight.openflowjava.protocol.api.extensibility.OFSerializer;
import org.opendaylight.openflowjava.protocol.api.util.EncodeConstants;
import org.opendaylight.openflowjava.util.ByteBufUtils;
import org.opendaylight.yang.gen.v1.urn.ietf.params.xml.ns.yang.ietf.yang.types.rev130715.IetfYangUtil;
import org.opendaylight.yang.gen.v1.urn.opendaylight.openflow.common.types.rev130731.ActionTypeV10;
import org.opendaylight.yang.gen.v1.urn.opendaylight.openflow.common.types.rev130731.CapabilitiesV10;
import org.opendaylight.yang.gen.v1.urn.opendaylight.openflow.common.types.rev130731.PortConfigV10;
import org.opendaylight.yang.gen.v1.urn.opendaylight.openflow.common.types.rev130731.PortFeaturesV10;
import org.opendaylight.yang.gen.v1.urn.opendaylight.openflow.common.types.rev130731.PortStateV10;
import org.opendaylight.yang.gen.v1.urn.opendaylight.openflow.protocol.rev130731.GetFeaturesOutput;
import org.opendaylight.yang.gen.v1.urn.opendaylight.openflow.protocol.rev130731.features.reply.PhyPort;

/**
 * @author giuseppex.petralia@intel.com
 *
 */
public class OF10FeaturesReplyMessageFactory implements OFSerializer<GetFeaturesOutput> {

    private static final byte PADDING = 3;
    private static final byte MESSAGE_TYPE = 6;

    @Override
    public void serialize(final GetFeaturesOutput message, final ByteBuf outBuffer) {
        ByteBufUtils.writeOFHeader(MESSAGE_TYPE, message, outBuffer, EncodeConstants.EMPTY_LENGTH);
        outBuffer.writeLong(message.getDatapathId().longValue());
        outBuffer.writeInt(message.getBuffers().intValue());
        outBuffer.writeByte(message.getTables().intValue());
        outBuffer.writeZero(PADDING);
        outBuffer.writeInt(createCapabilities(message.getCapabilitiesV10()));
        outBuffer.writeInt(createActionsV10(message.getActionsV10()));
        for (PhyPort port : message.getPhyPort()) {
            outBuffer.writeShort(port.getPortNo().intValue());
            outBuffer.writeBytes(IetfYangUtil.INSTANCE.bytesFor(port.getHwAddr()));
            writeName(port.getName(), outBuffer);
            writePortConfig(port.getConfigV10(), outBuffer);
            writePortState(port.getStateV10(), outBuffer);
            writePortFeature(port.getCurrentFeaturesV10(), outBuffer);
            writePortFeature(port.getAdvertisedFeaturesV10(), outBuffer);
            writePortFeature(port.getSupportedFeaturesV10(), outBuffer);
            writePortFeature(port.getPeerFeaturesV10(), outBuffer);
        }
        ByteBufUtils.updateOFHeaderLength(outBuffer);
    }

    private void writePortFeature(final PortFeaturesV10 feature, final ByteBuf outBuffer) {
        Map<Integer, Boolean> map = new HashMap<>();
        map.put(0, feature.is_10mbHd());
        map.put(1, feature.is_10mbFd());
        map.put(2, feature.is_100mbHd());
        map.put(3, feature.is_100mbFd());
        map.put(4, feature.is_1gbHd());
        map.put(5, feature.is_1gbFd());
        map.put(6, feature.is_10gbFd());
        map.put(7, feature.isCopper());
        map.put(8, feature.isFiber());
        map.put(9, feature.isAutoneg());
        map.put(10, feature.isPause());
        map.put(11, feature.isPauseAsym());
        int bitmap = ByteBufUtils.fillBitMaskFromMap(map);
        outBuffer.writeInt(bitmap);
    }

    private void writePortState(final PortStateV10 state, final ByteBuf outBuffer) {
        Map<Integer, Boolean> map = new HashMap<>();
        map.put(0, state.isLinkDown());
        map.put(1, state.isBlocked());
        map.put(2, state.isLive());
        map.put(3, state.isStpListen());
        map.put(4, state.isStpLearn());
        map.put(5, state.isStpForward());
        map.put(6, state.isStpBlock());
        map.put(7, state.isStpMask());
        int bitmap = ByteBufUtils.fillBitMaskFromMap(map);
        outBuffer.writeInt(bitmap);
    }

    private void writePortConfig(final PortConfigV10 config, final ByteBuf outBuffer) {
        Map<Integer, Boolean> map = new HashMap<>();
        map.put(0, config.isPortDown());
        map.put(1, config.isNoStp());
        map.put(2, config.isNoRecv());
        map.put(3, config.isNoRecvStp());
        map.put(4, config.isNoFlood());
        map.put(5, config.isNoFwd());
        map.put(6, config.isNoPacketIn());
        int bitmap = ByteBufUtils.fillBitMaskFromMap(map);
        outBuffer.writeInt(bitmap);
    }

    private static int createCapabilities(final CapabilitiesV10 capabilities) {
        Map<Integer, Boolean> map = new HashMap<>();
        map.put(0, capabilities.isOFPCFLOWSTATS());
        map.put(1, capabilities.isOFPCTABLESTATS());
        map.put(2, capabilities.isOFPCPORTSTATS());
        map.put(3, capabilities.isOFPCSTP());
        map.put(4, capabilities.isOFPCRESERVED());
        map.put(5, capabilities.isOFPCIPREASM());
        map.put(6, capabilities.isOFPCQUEUESTATS());
        map.put(7, capabilities.isOFPCARPMATCHIP());
        int bitmap = ByteBufUtils.fillBitMaskFromMap(map);
        return bitmap;
    }

    private static int createActionsV10(final ActionTypeV10 action) {
        return ByteBufUtils.fillBitMask(0, action.isOFPATOUTPUT(), action.isOFPATSETVLANVID(),
                action.isOFPATSETVLANPCP(), action.isOFPATSTRIPVLAN(), action.isOFPATSETDLSRC(),
                action.isOFPATSETDLDST(), action.isOFPATSETNWSRC(), action.isOFPATSETNWDST(),
                action.isOFPATSETNWTOS(), action.isOFPATSETTPSRC(), action.isOFPATSETTPDST(),
                action.isOFPATENQUEUE(), action.isOFPATVENDOR());

    }

    private void writeName(final String name, final ByteBuf outBuffer) {
        byte[] nameBytes = name.getBytes();
        if (nameBytes.length < 16) {
            byte[] nameBytesPadding = new byte[16];
            int i = 0;
            for (byte b : nameBytes) {
                nameBytesPadding[i] = b;
                i++;
            }
            for (; i < 16; i++) {
                nameBytesPadding[i] = 0x0;
            }
            outBuffer.writeBytes(nameBytesPadding);
        } else {
            outBuffer.writeBytes(nameBytes);
        }

    }
}