weibit | f32383b | 2014-10-22 10:17:31 -0700 | [diff] [blame^] | 1 | package org.onlab.onos.optical.provisioner; |
| 2 | |
| 3 | import java.util.Iterator; |
| 4 | |
| 5 | import java.util.Set; |
| 6 | |
| 7 | import org.apache.felix.scr.annotations.Activate; |
| 8 | import org.apache.felix.scr.annotations.Component; |
| 9 | import org.apache.felix.scr.annotations.Deactivate; |
| 10 | import org.apache.felix.scr.annotations.Reference; |
| 11 | import org.apache.felix.scr.annotations.ReferenceCardinality; |
| 12 | |
| 13 | import org.onlab.onos.ApplicationId; |
| 14 | import org.onlab.onos.CoreService; |
| 15 | import org.onlab.onos.net.ConnectPoint; |
| 16 | |
| 17 | import org.onlab.onos.net.Link; |
| 18 | import org.onlab.onos.net.device.DeviceService; |
| 19 | |
| 20 | import org.onlab.onos.net.intent.IdGenerator; |
| 21 | import org.onlab.onos.net.intent.Intent; |
| 22 | |
| 23 | import org.onlab.onos.net.intent.IntentEvent; |
| 24 | import org.onlab.onos.net.intent.IntentExtensionService; |
| 25 | import org.onlab.onos.net.intent.IntentId; |
| 26 | import org.onlab.onos.net.intent.IntentListener; |
| 27 | import org.onlab.onos.net.intent.IntentService; |
| 28 | import org.onlab.onos.net.intent.OpticalConnectivityIntent; |
| 29 | import org.onlab.onos.net.intent.PointToPointIntent; |
| 30 | import org.onlab.onos.net.link.LinkService; |
| 31 | import org.onlab.onos.net.topology.TopologyService; |
| 32 | import org.slf4j.Logger; |
| 33 | import org.slf4j.LoggerFactory; |
| 34 | |
| 35 | /** |
| 36 | * OpticalPathProvisioner listens event notifications from the Intent F/W. |
| 37 | * It generates one or more opticalConnectivityIntent(s) and submits (or withdraws) to Intent F/W |
| 38 | * for adding/releasing capacity at the packet layer. |
| 39 | * |
| 40 | */ |
| 41 | |
| 42 | @Component(immediate = true) |
| 43 | public class OpticalPathProvisioner { |
| 44 | |
| 45 | protected static final Logger log = LoggerFactory |
| 46 | .getLogger(OpticalPathProvisioner.class); |
| 47 | |
| 48 | @Reference(cardinality = ReferenceCardinality.MANDATORY_UNARY) |
| 49 | private IntentService intentService; |
| 50 | |
| 51 | @Reference(cardinality = ReferenceCardinality.MANDATORY_UNARY) |
| 52 | private IntentExtensionService intentExtensionService; |
| 53 | |
| 54 | @Reference(cardinality = ReferenceCardinality.MANDATORY_UNARY) |
| 55 | protected LinkService linkService; |
| 56 | |
| 57 | @Reference(cardinality = ReferenceCardinality.MANDATORY_UNARY) |
| 58 | protected DeviceService deviceService; |
| 59 | |
| 60 | @Reference(cardinality = ReferenceCardinality.MANDATORY_UNARY) |
| 61 | protected TopologyService topologyService; |
| 62 | |
| 63 | @Reference(cardinality = ReferenceCardinality.MANDATORY_UNARY) |
| 64 | protected CoreService coreService; |
| 65 | |
| 66 | // protected LinkResourceService resourceService; |
| 67 | |
| 68 | private ApplicationId appId; |
| 69 | private static long intentId = 0x9000000; |
| 70 | |
| 71 | protected IdGenerator<IntentId> intentIdGenerator; |
| 72 | |
| 73 | private final InternalOpticalPathProvisioner pathProvisioner = new InternalOpticalPathProvisioner(); |
| 74 | |
| 75 | @Activate |
| 76 | protected void activate() { |
| 77 | intentService.addListener(pathProvisioner); |
| 78 | appId = coreService.registerApplication("org.onlab.onos.optical"); |
| 79 | log.info("Starting optical path provisoning..."); |
| 80 | } |
| 81 | |
| 82 | @Deactivate |
| 83 | protected void deactivate() { |
| 84 | intentService.removeListener(pathProvisioner); |
| 85 | } |
| 86 | |
| 87 | public class InternalOpticalPathProvisioner implements IntentListener { |
| 88 | @Override |
| 89 | public void event(IntentEvent event) { |
| 90 | switch (event.type()) { |
| 91 | case SUBMITTED: |
| 92 | break; |
| 93 | case INSTALLED: |
| 94 | break; |
| 95 | case FAILED: |
| 96 | log.info("intent {} failed, calling optical path provisioning APP.", event.subject()); |
| 97 | setuplightpath(event.subject()); |
| 98 | break; |
| 99 | case WITHDRAWN: |
| 100 | log.info("intent {} withdrawn.", event.subject()); |
| 101 | teardownLightpath(event.subject()); |
| 102 | break; |
| 103 | default: |
| 104 | break; |
| 105 | } |
| 106 | } |
| 107 | |
| 108 | private void setuplightpath(Intent intent) { |
| 109 | // TODO: considering user policies and optical reach, may generate more OpticalConnectivityIntents |
| 110 | if (!intent.equals(PointToPointIntent.class)) { |
| 111 | return; |
| 112 | } |
| 113 | |
| 114 | PointToPointIntent pktIntent = (PointToPointIntent) intent; |
| 115 | if (pktIntent.ingressPoint() == null || pktIntent.egressPoint() == null) { |
| 116 | return; |
| 117 | } |
| 118 | |
| 119 | // Set<Port> port1 = deviceService.getPorts(pktIntent.ingressPoint().deviceId()); |
| 120 | |
| 121 | Set<Link> srcLink = linkService.getLinks(pktIntent.ingressPoint()); |
| 122 | Set<Link> dstLink = linkService.getLinks(pktIntent.egressPoint()); |
| 123 | |
| 124 | if (srcLink.isEmpty() || dstLink.isEmpty()) { |
| 125 | return; |
| 126 | } |
| 127 | |
| 128 | Iterator<Link> itrSrc = srcLink.iterator(); |
| 129 | Iterator<Link> itrDst = dstLink.iterator(); |
| 130 | |
| 131 | if (!itrSrc.next().annotations().value("linkType").equals("PktOptLink")) { |
| 132 | return; |
| 133 | } |
| 134 | if (!itrDst.next().annotations().value("linkType").equals("PktOptLink")) { |
| 135 | return; |
| 136 | } |
| 137 | |
| 138 | ConnectPoint srcWdmPoint = itrSrc.next().dst(); |
| 139 | ConnectPoint dstWdmPoint = itrDst.next().dst(); |
| 140 | |
| 141 | OpticalConnectivityIntent opticalIntent = |
| 142 | new OpticalConnectivityIntent(new IntentId(intentId++), |
| 143 | srcWdmPoint, |
| 144 | dstWdmPoint); |
| 145 | |
| 146 | log.info(opticalIntent.toString()); |
| 147 | intentService.submit(opticalIntent); |
| 148 | } |
| 149 | |
| 150 | private void teardownLightpath(Intent intent) { |
| 151 | // TODO: tear down the idle lightpath if the utilization is close to zero. |
| 152 | } |
| 153 | |
| 154 | } |
| 155 | |
| 156 | } |