bharat saraswal | f7364db | 2015-08-11 13:39:31 +0530 | [diff] [blame] | 1 | package org.onosproject.pcepio.protocol.ver1;
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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.exceptions.PcepParseException;
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| 5 | import org.onosproject.pcepio.protocol.PcepAttribute;
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| 6 | import org.onosproject.pcepio.protocol.PcepEroObject;
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| 7 | import org.onosproject.pcepio.protocol.PcepMsgPath;
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| 8 | import org.slf4j.Logger;
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| 9 | import org.slf4j.LoggerFactory;
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| 10 |
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| 11 | import com.google.common.base.MoreObjects;
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| 12 |
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| 13 | /**
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| 14 | * Provides PCEP Message PAth for update message.
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| 15 | * Reference :PCE extensions for stateful draft-ietf-pce-stateful-pce-10.
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| 16 | */
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| 17 | public class PcepMsgPathVer1 implements PcepMsgPath {
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| 18 |
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| 19 | /*
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| 20 | * <path> ::= <ERO><attribute-list>
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| 21 | */
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| 22 |
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| 23 | protected static final Logger log = LoggerFactory.getLogger(PcepMsgPathVer1.class);
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| 24 | //PcepEroObject
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| 25 | private PcepEroObject eroObj;
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| 26 | private boolean isEroObjectSet;
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| 27 | // PcepAttribute
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| 28 | private PcepAttribute attrList;
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| 29 | private boolean isAttributeListSet;
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| 30 |
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| 31 | /**
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| 32 | * constructor to initialize objects.
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| 33 | */
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| 34 | public PcepMsgPathVer1() {
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| 35 | eroObj = null;
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| 36 | attrList = null;
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| 37 | isEroObjectSet = false;
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| 38 | isAttributeListSet = false;
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| 39 | }
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| 40 |
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| 41 | @Override
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| 42 | public PcepEroObject getEroObject() {
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| 43 | return eroObj;
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| 44 | }
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| 45 |
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| 46 | @Override
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| 47 | public PcepAttribute getPcepAttribute() {
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| 48 | return attrList;
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| 49 | }
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| 50 |
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| 51 | @Override
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| 52 | public void setEroObject(PcepEroObject eroObj) {
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| 53 | this.eroObj = eroObj;
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| 54 | }
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| 55 |
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| 56 | @Override
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| 57 | public void setPcepAttribute(PcepAttribute attrList) {
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| 58 | this.attrList = attrList;
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| 59 | }
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| 60 |
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| 61 | /**
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| 62 | * constructor to initialize member variables.
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| 63 | *
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| 64 | * @param eroObj pcep ero object
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| 65 | * @param attrList pcep attribute
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| 66 | */
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| 67 | public PcepMsgPathVer1(PcepEroObject eroObj, PcepAttribute attrList) {
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| 68 | this.eroObj = eroObj;
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| 69 | isEroObjectSet = true;
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| 70 | this.attrList = attrList;
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| 71 | if (attrList == null) {
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| 72 | isAttributeListSet = false;
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| 73 | } else {
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| 74 | isAttributeListSet = true;
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| 75 | }
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| 76 | }
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| 77 |
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| 78 | @Override
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| 79 | public PcepMsgPath read(ChannelBuffer cb) throws PcepParseException {
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| 80 | PcepEroObject eroObj;
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| 81 | PcepAttribute attrList;
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| 82 |
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| 83 | eroObj = PcepEroObjectVer1.read(cb);
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| 84 | attrList = PcepAttributeVer1.read(cb);
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| 85 |
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| 86 | return new PcepMsgPathVer1(eroObj, attrList);
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| 87 | }
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| 88 |
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| 89 | @Override
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| 90 | public int write(ChannelBuffer cb) throws PcepParseException {
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| 91 | int iLenStartIndex = cb.writerIndex();
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| 92 |
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| 93 | //write Object header
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| 94 | if (this.isEroObjectSet) {
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| 95 | this.eroObj.write(cb);
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| 96 | }
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| 97 | if (this.isAttributeListSet) {
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| 98 | attrList.write(cb);
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| 99 | }
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| 100 |
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| 101 | return cb.writerIndex() - iLenStartIndex;
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| 102 | }
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| 103 |
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| 104 | /**
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| 105 | * builder class for PCEP Message path.
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| 106 | */
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| 107 | public static class Builder implements PcepMsgPath.Builder {
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| 108 |
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| 109 | private boolean bIsEROObjectSet = false;
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| 110 | private boolean bIsPcepAttributeSet = false;
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| 111 |
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| 112 | //PCEP ERO Object
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| 113 | private PcepEroObject eroObject;
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| 114 | //PCEP Attribute list
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| 115 | private PcepAttribute pcepAttribute;
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| 116 |
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| 117 | @Override
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| 118 | public PcepMsgPath build() throws PcepParseException {
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| 119 |
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| 120 | //PCEP ERO Object
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| 121 | PcepEroObject eroObject = null;
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| 122 | //PCEP Attribute list
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| 123 | PcepAttribute pcepAttribute = null;
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| 124 |
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| 125 | if (!this.bIsEROObjectSet) {
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| 126 | throw new PcepParseException("ERO Object NOT Set while building PcepMsgPath.");
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| 127 | } else {
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| 128 | eroObject = this.eroObject;
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| 129 | }
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| 130 | if (!this.bIsPcepAttributeSet) {
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| 131 | throw new PcepParseException("Pcep Attributes NOT Set while building PcepMsgPath.");
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| 132 | } else {
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| 133 | pcepAttribute = this.pcepAttribute;
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| 134 | }
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| 135 |
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| 136 | return new PcepMsgPathVer1(eroObject, pcepAttribute);
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| 137 | }
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| 138 |
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| 139 | @Override
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| 140 | public PcepEroObject getEroObject() {
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| 141 | return this.eroObject;
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| 142 | }
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| 143 |
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| 144 | @Override
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| 145 | public PcepAttribute getPcepAttribute() {
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| 146 | return this.pcepAttribute;
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| 147 | }
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| 148 |
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| 149 | @Override
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| 150 | public Builder setEroObject(PcepEroObject eroObject) {
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| 151 | this.eroObject = eroObject;
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| 152 | this.bIsEROObjectSet = true;
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| 153 | return this;
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| 154 | }
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| 155 |
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| 156 | @Override
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| 157 | public Builder setPcepAttribute(PcepAttribute pcepAttribute) {
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| 158 | this.pcepAttribute = pcepAttribute;
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| 159 | this.bIsPcepAttributeSet = true;
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| 160 | return this;
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| 161 | }
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| 162 |
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| 163 | }
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| 164 |
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| 165 | @Override
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| 166 | public void print() {
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| 167 |
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| 168 | log.debug("PcepMsgPath");
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| 169 | eroObj.print();
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| 170 | attrList.print();
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| 171 | }
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| 172 |
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| 173 | @Override
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| 174 | public String toString() {
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| 175 | return MoreObjects.toStringHelper(getClass())
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| 176 | .add("ERO object", eroObj)
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| 177 | .add("Attribute list", attrList)
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| 178 | .toString();
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| 179 | }
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| 180 | } |