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Diffstat (limited to 'framework/src/onos/protocols/bgp/bgpio/src/main/java/org/onosproject/bgpio/types/OSPFRouteTypeTlv.java')
| -rw-r--r-- | framework/src/onos/protocols/bgp/bgpio/src/main/java/org/onosproject/bgpio/types/OSPFRouteTypeTlv.java | 168 |
1 files changed, 168 insertions, 0 deletions
diff --git a/framework/src/onos/protocols/bgp/bgpio/src/main/java/org/onosproject/bgpio/types/OSPFRouteTypeTlv.java b/framework/src/onos/protocols/bgp/bgpio/src/main/java/org/onosproject/bgpio/types/OSPFRouteTypeTlv.java new file mode 100644 index 00000000..be321c95 --- /dev/null +++ b/framework/src/onos/protocols/bgp/bgpio/src/main/java/org/onosproject/bgpio/types/OSPFRouteTypeTlv.java @@ -0,0 +1,168 @@ +/* + * Copyright 2015 Open Networking Laboratory + * + * 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. + */ +package org.onosproject.bgpio.types; + +import java.util.Objects; + +import org.jboss.netty.buffer.ChannelBuffer; +import org.onosproject.bgpio.exceptions.BgpParseException; + +import com.google.common.base.MoreObjects; + +/** + * Provides OSPF Route Type Tlv which contains route type. + */ +public class OSPFRouteTypeTlv implements BgpValueType { + + /* Reference :draft-ietf-idr-ls-distribution-11 + 0 1 2 3 + 0 1 2 3 4 5 6 7 8 9 0 1 2 3 4 5 6 7 8 9 0 1 2 3 4 5 6 7 8 9 0 1 + +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+ + | Type | Length | + +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+ + | Route Type | + +-+-+-+-+-+-+-+-+ + + Figure : OSPF Route Type TLV Format + */ + + public static final short TYPE = 264; + public static final short LENGTH = 1; + public static final int INTRA_AREA_TYPE = 1; + public static final short INTER_AREA_TYPE = 2; + public static final short EXTERNAL_TYPE_1 = 3; + public static final short EXTERNAL_TYPE_2 = 4; + public static final short NSSA_TYPE_1 = 5; + public static final short NSSA_TYPE_2 = 6; + + private final byte routeType; + + /** + * Enum for Route Type. + */ + public enum RouteType { + Intra_Area(1), Inter_Area(2), External_1(3), External_2(4), NSSA_1(5), NSSA_2(6); + int value; + RouteType(int val) { + value = val; + } + public byte getType() { + return (byte) value; + } + } + + /** + * Constructor to initialize routeType. + * + * @param routeType Route type + */ + public OSPFRouteTypeTlv(byte routeType) { + this.routeType = routeType; + } + + /** + * Returns object of this class with specified routeType. + * + * @param routeType Route type + * @return object of OSPFRouteTypeTlv + */ + public static OSPFRouteTypeTlv of(final byte routeType) { + return new OSPFRouteTypeTlv(routeType); + } + + /** + * Returns RouteType. + * + * @return RouteType + * @throws BgpParseException if routeType is not matched + */ + public RouteType getValue() throws BgpParseException { + switch (routeType) { + case INTRA_AREA_TYPE: + return RouteType.Intra_Area; + case INTER_AREA_TYPE: + return RouteType.Inter_Area; + case EXTERNAL_TYPE_1: + return RouteType.External_1; + case EXTERNAL_TYPE_2: + return RouteType.External_2; + case NSSA_TYPE_1: + return RouteType.NSSA_1; + case NSSA_TYPE_2: + return RouteType.NSSA_2; + default: + throw new BgpParseException(BgpErrorType.UPDATE_MESSAGE_ERROR, (byte) 0, null); + } + } + + @Override + public int hashCode() { + return Objects.hash(routeType); + } + + @Override + public boolean equals(Object obj) { + if (this == obj) { + return true; + } + if (obj instanceof OSPFRouteTypeTlv) { + OSPFRouteTypeTlv other = (OSPFRouteTypeTlv) obj; + return Objects.equals(routeType, other.routeType); + } + return false; + } + + @Override + public int write(ChannelBuffer c) { + int iLenStartIndex = c.writerIndex(); + c.writeShort(TYPE); + c.writeShort(LENGTH); + c.writeByte(routeType); + return c.writerIndex() - iLenStartIndex; + } + + /** + * Reads from ChannelBuffer and parses OSPFRouteTypeTlv. + * + * @param cb channelBuffer + * @return object of OSPFRouteTypeTlv + */ + public static OSPFRouteTypeTlv read(ChannelBuffer cb) { + return OSPFRouteTypeTlv.of(cb.readByte()); + } + + @Override + public short getType() { + return TYPE; + } + + @Override + public int compareTo(Object o) { + if (this.equals(o)) { + return 0; + } + return ((Byte) (this.routeType)).compareTo((Byte) (((OSPFRouteTypeTlv) o).routeType)); + } + + @Override + public String toString() { + return MoreObjects.toStringHelper(getClass()) + .add("Type", TYPE) + .add("Length", LENGTH) + .add("Value", routeType) + .toString(); + } +}
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