bharat saraswal | f7364db | 2015-08-11 13:39:31 +0530 | [diff] [blame] | 1 | package org.onosproject.pcepio.types;
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| 2 |
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| 3 | import org.jboss.netty.buffer.ChannelBuffer;
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| 4 | import org.onosproject.pcepio.protocol.PcepVersion;
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| 5 |
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| 6 | import com.google.common.base.MoreObjects;
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| 7 |
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| 8 | public class PcepRsvpIpv6ErrorSpec implements PcepRsvpErrorSpec {
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| 9 |
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| 10 | /*
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| 11 | 0 1 2 3
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| 12 | +-------------+-------------+-------------+-------------+
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| 13 | | Length (bytes) | Class-Num | C-Type |
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| 14 | +-------------+-------------+-------------+-------------+
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| 15 | | |
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| 16 | // (Object contents) //
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| 17 | | |
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| 18 | +-------------+-------------+-------------+-------------+
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| 19 |
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| 20 | Ref : ERROR_SPEC @ RFC2205
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| 21 |
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| 22 | IPv6 ERROR_SPEC object: Class = 6, C-Type = 2
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| 23 | +-------------+-------------+-------------+-------------+
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| 24 | | |
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| 25 | + +
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| 26 | | |
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| 27 | + IPv6 Error Node Address (16 bytes) +
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| 28 | | |
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| 29 | + +
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| 30 | | |
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| 31 | +-------------+-------------+-------------+-------------+
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| 32 | | Flags | Error Code | Error Value |
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| 33 | +-------------+-------------+-------------+-------------+ */
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| 34 |
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| 35 | PcepRsvpSpecObjHeader objHeader;
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| 36 | public static final byte CLASS_NUM = 0x06;
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| 37 | public static final byte CLASS_TYPE = 0x02;
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| 38 | public static final byte CLASS_LENGTH = 0x18;
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| 39 | public static final byte IPV6_LEN = 0x10;
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| 40 |
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| 41 | private byte[] ipv6Addr;
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| 42 | private byte flags;
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| 43 | private byte errCode;
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| 44 | private short errValue;
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| 45 |
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| 46 | /**
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| 47 | * Constructor to initialize obj header, ipv6 addr, flags, err code and err value.
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| 48 | *
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| 49 | * @param objHeader rsvp ipv6 error spec object header
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| 50 | * @param ipv6Addr ipv6 address
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| 51 | * @param flags flags value
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| 52 | * @param errCode error code
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| 53 | * @param errValue error value
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| 54 | */
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| 55 | public PcepRsvpIpv6ErrorSpec(PcepRsvpSpecObjHeader objHeader, byte[] ipv6Addr, byte flags, byte errCode,
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| 56 | short errValue) {
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| 57 | this.objHeader = objHeader;
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| 58 | this.ipv6Addr = ipv6Addr;
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| 59 | this.flags = flags;
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| 60 | this.errCode = errCode;
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| 61 | this.errValue = errValue;
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| 62 | }
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| 63 |
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| 64 | /**
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| 65 | * Constructor to initialize ipv6 addr, flags, err code and err value.
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| 66 | *
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| 67 | * @param ipv6Addr ipv6 address
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| 68 | * @param flags flags value
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| 69 | * @param errCode error code
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| 70 | * @param errValue error value
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| 71 | */
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| 72 | public PcepRsvpIpv6ErrorSpec(byte[] ipv6Addr, byte flags, byte errCode, short errValue) {
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| 73 | this.objHeader = new PcepRsvpSpecObjHeader(CLASS_LENGTH, CLASS_NUM, CLASS_TYPE);
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| 74 | this.ipv6Addr = ipv6Addr;
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| 75 | this.flags = flags;
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| 76 | this.errCode = errCode;
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| 77 | this.errValue = errValue;
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| 78 | }
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| 79 |
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| 80 | @Override
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| 81 | public int write(ChannelBuffer cb) {
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| 82 | int objLenIndex = objHeader.write(cb);
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| 83 | cb.writeBytes(ipv6Addr);
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| 84 | cb.writeByte(flags);
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| 85 | cb.writeByte(errCode);
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| 86 | cb.writeShort(errValue);
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| 87 | short objLen = (short) (cb.writerIndex() - objLenIndex);
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| 88 | cb.setShort(objLenIndex, objLen);
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| 89 | return objLen;
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| 90 | }
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| 91 |
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| 92 | /**
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| 93 | * Returns PCEP rsvp IPv6 error spce object.
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| 94 | *
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| 95 | * @param cb channel buffer
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| 96 | * @return PCEP rsvp IPv6 error spce object
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| 97 | */
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| 98 | public static PcepRsvpErrorSpec read(ChannelBuffer cb) {
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| 99 | PcepRsvpSpecObjHeader objHeader;
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| 100 | byte[] ipv6Addr = new byte[IPV6_LEN];
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| 101 | byte flags;
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| 102 | byte errCode;
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| 103 | short errValue;
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| 104 |
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| 105 | objHeader = PcepRsvpSpecObjHeader.read(cb);
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| 106 | cb.readBytes(ipv6Addr, 0, IPV6_LEN);
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| 107 | flags = cb.readByte();
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| 108 | errCode = cb.readByte();
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| 109 | errValue = cb.readShort();
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| 110 | return new PcepRsvpIpv6ErrorSpec(objHeader, ipv6Addr, flags, errCode, errValue);
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| 111 | }
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| 112 |
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| 113 | @Override
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| 114 | public PcepVersion getVersion() {
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| 115 | return PcepVersion.PCEP_1;
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| 116 | }
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| 117 |
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| 118 | @Override
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| 119 | public short getType() {
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| 120 | return StatefulRsvpErrorSpecTlv.TYPE;
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| 121 | }
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| 122 |
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| 123 | @Override
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| 124 | public short getLength() {
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| 125 | return CLASS_LENGTH;
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| 126 | }
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| 127 |
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| 128 | @Override
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| 129 | public byte getClassNum() {
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| 130 | return CLASS_NUM;
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| 131 | }
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| 132 |
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| 133 | @Override
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| 134 | public byte getClassType() {
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| 135 | return CLASS_TYPE;
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| 136 | }
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| 137 |
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| 138 | @Override
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bharat saraswal | f7364db | 2015-08-11 13:39:31 +0530 | [diff] [blame] | 139 | public String toString() {
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| 140 | return MoreObjects.toStringHelper(getClass())
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bharat saraswal | e180630 | 2015-08-21 12:16:46 +0530 | [diff] [blame] | 141 | .add("IPv6Address:", ipv6Addr)
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bharat saraswal | f7364db | 2015-08-11 13:39:31 +0530 | [diff] [blame] | 142 | .add("flags:", flags)
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bharat saraswal | e180630 | 2015-08-21 12:16:46 +0530 | [diff] [blame] | 143 | .add("errorCode:", errCode)
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| 144 | .add("errorValue:", errValue)
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bharat saraswal | f7364db | 2015-08-11 13:39:31 +0530 | [diff] [blame] | 145 | .toString();
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| 146 | }
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| 147 | }
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