fahadnaeemkhan | 7182724 | 2017-09-21 15:10:07 -0700 | [diff] [blame] | 1 | /* |
| 2 | * Copyright 2016-present Open Networking Foundation |
| 3 | * |
| 4 | * Licensed under the Apache License, Version 2.0 (the "License"); |
| 5 | * you may not use this file except in compliance with the License. |
| 6 | * You may obtain a copy of the License at |
| 7 | * |
| 8 | * http://www.apache.org/licenses/LICENSE-2.0 |
| 9 | * |
| 10 | * Unless required by applicable law or agreed to in writing, software |
| 11 | * distributed under the License is distributed on an "AS IS" BASIS, |
| 12 | * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. |
| 13 | * See the License for the specific language governing permissions and |
| 14 | * limitations under the License. |
| 15 | */ |
| 16 | package org.onosproject.drivers.ciena; |
| 17 | |
| 18 | import org.onosproject.net.DeviceId; |
| 19 | import org.onosproject.net.OchSignal; |
| 20 | import org.onosproject.net.PortNumber; |
| 21 | import org.onosproject.driver.optical.flowrule.CrossConnectFlowRule; |
| 22 | import org.onosproject.net.driver.AbstractHandlerBehaviour; |
| 23 | import org.onosproject.net.flow.FlowEntry; |
| 24 | import org.onosproject.net.flow.FlowRule; |
| 25 | import org.onosproject.net.flow.FlowRuleProgrammable; |
| 26 | |
| 27 | import org.slf4j.Logger; |
| 28 | |
| 29 | |
| 30 | import java.util.List; |
| 31 | import java.util.Collection; |
| 32 | import java.util.Collections; |
| 33 | import java.util.stream.Collectors; |
| 34 | |
| 35 | import static org.slf4j.LoggerFactory.getLogger; |
| 36 | |
| 37 | public class CienaFlowRuleProgrammable extends AbstractHandlerBehaviour implements FlowRuleProgrammable { |
| 38 | private CienaRestDevice restCiena; |
| 39 | private final Logger log = getLogger(getClass()); |
| 40 | |
| 41 | @Override |
| 42 | public Collection<FlowEntry> getFlowEntries() { |
| 43 | DeviceId deviceId = handler().data().deviceId(); |
| 44 | log.debug("getting flow entries for device {}", deviceId); |
fahadnaeemkhan | a62bd2f | 2017-10-11 12:39:55 -0700 | [diff] [blame] | 45 | try { |
| 46 | restCiena = new CienaRestDevice(handler()); |
| 47 | } catch (NullPointerException e) { |
| 48 | log.error("unable to create CienaRestDevice:\n{}", e); |
| 49 | return Collections.emptyList(); |
| 50 | } |
| 51 | return restCiena.getFlowEntries(); |
fahadnaeemkhan | 7182724 | 2017-09-21 15:10:07 -0700 | [diff] [blame] | 52 | } |
| 53 | |
| 54 | @Override |
| 55 | public Collection<FlowRule> applyFlowRules(Collection<FlowRule> rules) { |
| 56 | log.debug("installing flow rules: {}", rules); |
fahadnaeemkhan | a62bd2f | 2017-10-11 12:39:55 -0700 | [diff] [blame] | 57 | try { |
| 58 | restCiena = new CienaRestDevice(handler()); |
| 59 | } catch (NullPointerException e) { |
| 60 | log.error("unable to create CienaRestDevice:\n{}", e); |
| 61 | return Collections.emptyList(); |
| 62 | } |
fahadnaeemkhan | 7182724 | 2017-09-21 15:10:07 -0700 | [diff] [blame] | 63 | // Apply the valid rules on the device |
| 64 | Collection<FlowRule> added = rules.stream() |
| 65 | .map(r -> createCrossConnectFlowRule(r)) |
| 66 | .filter(xc -> installCrossConnect(xc)) |
| 67 | .collect(Collectors.toList()); |
fahadnaeemkhan | a62bd2f | 2017-10-11 12:39:55 -0700 | [diff] [blame] | 68 | restCiena.setCrossConnectCache(added); |
fahadnaeemkhan | 7182724 | 2017-09-21 15:10:07 -0700 | [diff] [blame] | 69 | return added; |
| 70 | } |
| 71 | |
| 72 | @Override |
| 73 | public Collection<FlowRule> removeFlowRules(Collection<FlowRule> rules) { |
| 74 | log.debug("removing flow rules: {}", rules); |
fahadnaeemkhan | a62bd2f | 2017-10-11 12:39:55 -0700 | [diff] [blame] | 75 | try { |
| 76 | restCiena = new CienaRestDevice(handler()); |
| 77 | } catch (NullPointerException e) { |
| 78 | log.error("unable to create CienaRestDevice:\n{}", e); |
| 79 | return Collections.emptyList(); |
| 80 | } |
| 81 | Collection<FlowRule> removed = rules.stream() |
| 82 | .map(r -> createCrossConnectFlowRule(r)) |
| 83 | .filter(xc -> xc != null) |
| 84 | .collect(Collectors.toList()); |
| 85 | restCiena.removeCrossConnectCache(removed); |
| 86 | return removed; |
fahadnaeemkhan | 7182724 | 2017-09-21 15:10:07 -0700 | [diff] [blame] | 87 | } |
| 88 | |
| 89 | private CrossConnectFlowRule createCrossConnectFlowRule(FlowRule r) { |
fahadnaeemkhan | a62bd2f | 2017-10-11 12:39:55 -0700 | [diff] [blame] | 90 | List<PortNumber> linePorts = CienaRestDevice.getLinesidePortId().stream() |
fahadnaeemkhan | 7182724 | 2017-09-21 15:10:07 -0700 | [diff] [blame] | 91 | .map(p -> PortNumber.portNumber(p)) |
| 92 | .collect(Collectors.toList()); |
| 93 | try { |
| 94 | return new CrossConnectFlowRule(r, linePorts); |
| 95 | } catch (IllegalArgumentException e) { |
| 96 | log.debug("unable to create cross connect for rule:\n{}", r); |
| 97 | } |
| 98 | return null; |
| 99 | } |
| 100 | |
| 101 | private boolean installCrossConnect(CrossConnectFlowRule xc) { |
| 102 | if (xc == null) { |
| 103 | return false; |
| 104 | } |
| 105 | // only handling lineside rule |
| 106 | if (xc.isAddRule()) { |
| 107 | PortNumber outPort = xc.addDrop(); |
| 108 | OchSignal signal = xc.ochSignal(); |
| 109 | return install(outPort, signal); |
| 110 | } |
| 111 | return false; |
| 112 | } |
| 113 | |
| 114 | private boolean removeCrossConnect(CrossConnectFlowRule xc) { |
| 115 | //for now setting channel to 0 for remove rule |
| 116 | if (xc == null) { |
| 117 | return false; |
| 118 | } |
| 119 | // only handling lineside rule |
| 120 | if (xc.isAddRule()) { |
| 121 | PortNumber outPort = xc.addDrop(); |
fahadnaeemkhan | ffc917f | 2017-10-03 14:04:46 -0700 | [diff] [blame] | 122 | OchSignal signal = OchSignal.newDwdmSlot(xc.ochSignal().channelSpacing(), 0); |
fahadnaeemkhan | 7182724 | 2017-09-21 15:10:07 -0700 | [diff] [blame] | 123 | return install(outPort, signal); |
| 124 | } |
| 125 | return false; |
| 126 | } |
| 127 | |
| 128 | private boolean install(PortNumber outPort, OchSignal signal) { |
| 129 | /* |
| 130 | * rule is installed in three steps |
| 131 | * 1- disable port |
| 132 | * 2- change channel |
| 133 | * 3- enable port |
| 134 | */ |
| 135 | try { |
| 136 | restCiena = new CienaRestDevice(handler()); |
| 137 | } catch (NullPointerException e) { |
| 138 | log.error("unable to create CienaRestDevice, {}", e); |
| 139 | return false; |
| 140 | } |
| 141 | //1- disable port |
| 142 | //blindly disabling port |
| 143 | if (!restCiena.disablePort(outPort)) { |
fahadnaeemkhan | 7182724 | 2017-09-21 15:10:07 -0700 | [diff] [blame] | 144 | return false; |
| 145 | } |
| 146 | //2- change channel |
| 147 | if (!restCiena.changeChannel(signal, outPort)) { |
fahadnaeemkhan | 7182724 | 2017-09-21 15:10:07 -0700 | [diff] [blame] | 148 | return false; |
| 149 | } |
| 150 | //3- enable port |
| 151 | if (!restCiena.enablePort(outPort)) { |
fahadnaeemkhan | 7182724 | 2017-09-21 15:10:07 -0700 | [diff] [blame] | 152 | return false; |
| 153 | } |
| 154 | return true; |
| 155 | } |
fahadnaeemkhan | a62bd2f | 2017-10-11 12:39:55 -0700 | [diff] [blame] | 156 | |
fahadnaeemkhan | 7182724 | 2017-09-21 15:10:07 -0700 | [diff] [blame] | 157 | } |