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; |
fahadnaeemkhan | a37be5c | 2018-02-15 18:39:55 -0800 | [diff] [blame^] | 33 | import java.util.Objects; |
fahadnaeemkhan | 7182724 | 2017-09-21 15:10:07 -0700 | [diff] [blame] | 34 | import java.util.stream.Collectors; |
| 35 | |
| 36 | import static org.slf4j.LoggerFactory.getLogger; |
| 37 | |
| 38 | public class CienaFlowRuleProgrammable extends AbstractHandlerBehaviour implements FlowRuleProgrammable { |
| 39 | private CienaRestDevice restCiena; |
| 40 | private final Logger log = getLogger(getClass()); |
| 41 | |
| 42 | @Override |
| 43 | public Collection<FlowEntry> getFlowEntries() { |
| 44 | DeviceId deviceId = handler().data().deviceId(); |
| 45 | log.debug("getting flow entries for device {}", deviceId); |
fahadnaeemkhan | a62bd2f | 2017-10-11 12:39:55 -0700 | [diff] [blame] | 46 | try { |
| 47 | restCiena = new CienaRestDevice(handler()); |
| 48 | } catch (NullPointerException e) { |
| 49 | log.error("unable to create CienaRestDevice:\n{}", e); |
| 50 | return Collections.emptyList(); |
| 51 | } |
| 52 | return restCiena.getFlowEntries(); |
fahadnaeemkhan | 7182724 | 2017-09-21 15:10:07 -0700 | [diff] [blame] | 53 | } |
| 54 | |
| 55 | @Override |
| 56 | public Collection<FlowRule> applyFlowRules(Collection<FlowRule> rules) { |
| 57 | log.debug("installing flow rules: {}", rules); |
fahadnaeemkhan | a62bd2f | 2017-10-11 12:39:55 -0700 | [diff] [blame] | 58 | try { |
| 59 | restCiena = new CienaRestDevice(handler()); |
| 60 | } catch (NullPointerException e) { |
| 61 | log.error("unable to create CienaRestDevice:\n{}", e); |
| 62 | return Collections.emptyList(); |
| 63 | } |
fahadnaeemkhan | 7182724 | 2017-09-21 15:10:07 -0700 | [diff] [blame] | 64 | // Apply the valid rules on the device |
| 65 | Collection<FlowRule> added = rules.stream() |
fahadnaeemkhan | a37be5c | 2018-02-15 18:39:55 -0800 | [diff] [blame^] | 66 | .map(this::createCrossConnectFlowRule) |
| 67 | .filter(this::installCrossConnect) |
fahadnaeemkhan | 7182724 | 2017-09-21 15:10:07 -0700 | [diff] [blame] | 68 | .collect(Collectors.toList()); |
fahadnaeemkhan | a62bd2f | 2017-10-11 12:39:55 -0700 | [diff] [blame] | 69 | restCiena.setCrossConnectCache(added); |
fahadnaeemkhan | 7182724 | 2017-09-21 15:10:07 -0700 | [diff] [blame] | 70 | return added; |
| 71 | } |
| 72 | |
| 73 | @Override |
| 74 | public Collection<FlowRule> removeFlowRules(Collection<FlowRule> rules) { |
| 75 | log.debug("removing flow rules: {}", rules); |
fahadnaeemkhan | a62bd2f | 2017-10-11 12:39:55 -0700 | [diff] [blame] | 76 | try { |
| 77 | restCiena = new CienaRestDevice(handler()); |
| 78 | } catch (NullPointerException e) { |
| 79 | log.error("unable to create CienaRestDevice:\n{}", e); |
| 80 | return Collections.emptyList(); |
| 81 | } |
| 82 | Collection<FlowRule> removed = rules.stream() |
fahadnaeemkhan | a37be5c | 2018-02-15 18:39:55 -0800 | [diff] [blame^] | 83 | .map(this::createCrossConnectFlowRule) |
| 84 | .filter(Objects::nonNull) |
fahadnaeemkhan | a62bd2f | 2017-10-11 12:39:55 -0700 | [diff] [blame] | 85 | .collect(Collectors.toList()); |
| 86 | restCiena.removeCrossConnectCache(removed); |
| 87 | return removed; |
fahadnaeemkhan | 7182724 | 2017-09-21 15:10:07 -0700 | [diff] [blame] | 88 | } |
| 89 | |
| 90 | private CrossConnectFlowRule createCrossConnectFlowRule(FlowRule r) { |
fahadnaeemkhan | a62bd2f | 2017-10-11 12:39:55 -0700 | [diff] [blame] | 91 | List<PortNumber> linePorts = CienaRestDevice.getLinesidePortId().stream() |
fahadnaeemkhan | a37be5c | 2018-02-15 18:39:55 -0800 | [diff] [blame^] | 92 | .map(PortNumber::portNumber) |
fahadnaeemkhan | 7182724 | 2017-09-21 15:10:07 -0700 | [diff] [blame] | 93 | .collect(Collectors.toList()); |
| 94 | try { |
| 95 | return new CrossConnectFlowRule(r, linePorts); |
| 96 | } catch (IllegalArgumentException e) { |
| 97 | log.debug("unable to create cross connect for rule:\n{}", r); |
| 98 | } |
| 99 | return null; |
| 100 | } |
| 101 | |
| 102 | private boolean installCrossConnect(CrossConnectFlowRule xc) { |
| 103 | if (xc == null) { |
| 104 | return false; |
| 105 | } |
| 106 | // only handling lineside rule |
| 107 | if (xc.isAddRule()) { |
| 108 | PortNumber outPort = xc.addDrop(); |
| 109 | OchSignal signal = xc.ochSignal(); |
| 110 | return install(outPort, signal); |
| 111 | } |
| 112 | return false; |
| 113 | } |
| 114 | |
| 115 | private boolean removeCrossConnect(CrossConnectFlowRule xc) { |
| 116 | //for now setting channel to 0 for remove rule |
| 117 | if (xc == null) { |
| 118 | return false; |
| 119 | } |
| 120 | // only handling lineside rule |
| 121 | if (xc.isAddRule()) { |
| 122 | PortNumber outPort = xc.addDrop(); |
fahadnaeemkhan | ffc917f | 2017-10-03 14:04:46 -0700 | [diff] [blame] | 123 | OchSignal signal = OchSignal.newDwdmSlot(xc.ochSignal().channelSpacing(), 0); |
fahadnaeemkhan | 7182724 | 2017-09-21 15:10:07 -0700 | [diff] [blame] | 124 | return install(outPort, signal); |
| 125 | } |
| 126 | return false; |
| 127 | } |
| 128 | |
| 129 | private boolean install(PortNumber outPort, OchSignal signal) { |
| 130 | /* |
| 131 | * rule is installed in three steps |
| 132 | * 1- disable port |
fahadnaeemkhan | a37be5c | 2018-02-15 18:39:55 -0800 | [diff] [blame^] | 133 | * 2- change frequency |
fahadnaeemkhan | 7182724 | 2017-09-21 15:10:07 -0700 | [diff] [blame] | 134 | * 3- enable port |
| 135 | */ |
| 136 | try { |
| 137 | restCiena = new CienaRestDevice(handler()); |
| 138 | } catch (NullPointerException e) { |
| 139 | log.error("unable to create CienaRestDevice, {}", e); |
| 140 | return false; |
| 141 | } |
| 142 | //1- disable port |
| 143 | //blindly disabling port |
| 144 | if (!restCiena.disablePort(outPort)) { |
fahadnaeemkhan | 7182724 | 2017-09-21 15:10:07 -0700 | [diff] [blame] | 145 | return false; |
| 146 | } |
fahadnaeemkhan | a37be5c | 2018-02-15 18:39:55 -0800 | [diff] [blame^] | 147 | //2- change frequency |
| 148 | if (!restCiena.changeFrequency(signal, outPort)) { |
fahadnaeemkhan | 7182724 | 2017-09-21 15:10:07 -0700 | [diff] [blame] | 149 | return false; |
| 150 | } |
| 151 | //3- enable port |
| 152 | if (!restCiena.enablePort(outPort)) { |
fahadnaeemkhan | 7182724 | 2017-09-21 15:10:07 -0700 | [diff] [blame] | 153 | return false; |
| 154 | } |
| 155 | return true; |
| 156 | } |
fahadnaeemkhan | a62bd2f | 2017-10-11 12:39:55 -0700 | [diff] [blame] | 157 | |
fahadnaeemkhan | 7182724 | 2017-09-21 15:10:07 -0700 | [diff] [blame] | 158 | } |