Priyanka B | 9bee080 | 2016-04-27 22:06:02 +0530 | [diff] [blame^] | 1 | /* |
| 2 | * Copyright 2016-present Open Networking Laboratory |
| 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.provider.bgpcep.flow.impl; |
| 17 | |
| 18 | import org.apache.felix.scr.annotations.Activate; |
| 19 | import org.apache.felix.scr.annotations.Component; |
| 20 | import org.apache.felix.scr.annotations.Deactivate; |
| 21 | import org.apache.felix.scr.annotations.Reference; |
| 22 | import org.apache.felix.scr.annotations.ReferenceCardinality; |
| 23 | import org.onosproject.bgp.controller.BgpController; |
| 24 | import org.onosproject.cfg.ComponentConfigService; |
| 25 | import org.onosproject.core.ApplicationId; |
| 26 | import org.onosproject.net.flow.FlowRule; |
| 27 | import org.onosproject.net.flow.FlowRuleBatchOperation; |
| 28 | import org.onosproject.net.flow.FlowRuleProvider; |
| 29 | import org.onosproject.net.flow.FlowRuleProviderRegistry; |
| 30 | import org.onosproject.net.flow.FlowRuleProviderService; |
| 31 | import org.onosproject.net.flow.criteria.Criterion; |
| 32 | import org.onosproject.net.provider.AbstractProvider; |
| 33 | import org.onosproject.net.provider.ProviderId; |
| 34 | import org.onosproject.net.resource.ResourceService; |
| 35 | import org.onosproject.pcep.controller.PcepClient; |
| 36 | import org.onosproject.pcep.controller.PcepClientController; |
| 37 | import org.osgi.service.component.ComponentContext; |
| 38 | import org.slf4j.Logger; |
| 39 | |
| 40 | import static org.slf4j.LoggerFactory.getLogger; |
| 41 | |
| 42 | /** |
| 43 | * Implementation of BGP-PCEP flow provider. |
| 44 | */ |
| 45 | @Component(immediate = true) |
| 46 | public class BgpcepFlowRuleProvider extends AbstractProvider |
| 47 | implements FlowRuleProvider { |
| 48 | |
| 49 | private final Logger log = getLogger(getClass()); |
| 50 | |
| 51 | @Reference(cardinality = ReferenceCardinality.MANDATORY_UNARY) |
| 52 | protected FlowRuleProviderRegistry providerRegistry; |
| 53 | |
| 54 | @Reference(cardinality = ReferenceCardinality.MANDATORY_UNARY) |
| 55 | protected ComponentConfigService cfgService; |
| 56 | |
| 57 | @Reference(cardinality = ReferenceCardinality.MANDATORY_UNARY) |
| 58 | protected BgpController bgpController; |
| 59 | |
| 60 | @Reference(cardinality = ReferenceCardinality.MANDATORY_UNARY) |
| 61 | protected PcepClientController pcepController; |
| 62 | |
| 63 | @Reference(cardinality = ReferenceCardinality.MANDATORY_UNARY) |
| 64 | protected ResourceService resourceService; |
| 65 | |
| 66 | private FlowRuleProviderService providerService; |
| 67 | |
| 68 | /** |
| 69 | * Creates a BgpFlow host provider. |
| 70 | */ |
| 71 | public BgpcepFlowRuleProvider() { |
| 72 | super(new ProviderId("l3", "org.onosproject.provider.bgpcep")); |
| 73 | } |
| 74 | |
| 75 | @Activate |
| 76 | public void activate(ComponentContext context) { |
| 77 | cfgService.registerProperties(getClass()); |
| 78 | providerService = providerRegistry.register(this); |
| 79 | log.info("Started"); |
| 80 | } |
| 81 | |
| 82 | @Deactivate |
| 83 | public void deactivate(ComponentContext context) { |
| 84 | cfgService.unregisterProperties(getClass(), false); |
| 85 | providerRegistry.unregister(this); |
| 86 | providerService = null; |
| 87 | log.info("Stopped"); |
| 88 | } |
| 89 | |
| 90 | @Override |
| 91 | public void applyFlowRule(FlowRule... flowRules) { |
| 92 | for (FlowRule flowRule : flowRules) { |
| 93 | applyRule(flowRule); |
| 94 | } |
| 95 | } |
| 96 | |
| 97 | private void applyRule(FlowRule flowRule) { |
| 98 | flowRule.selector().criteria() |
| 99 | .forEach(c -> { |
| 100 | // If Criterion type is MPLS_LABEL, push labels through PCEP client |
| 101 | if (c.type() == Criterion.Type.MPLS_LABEL) { |
| 102 | PcepClient pcc; |
| 103 | /** PCC client session is based on LSR ID, get the LSR ID for a specific device to |
| 104 | push the flows */ |
| 105 | |
| 106 | //TODO: commented code has dependency with other patch |
| 107 | /* Set<TeRouterId> lrsIds = resourceService.getAvailableResourceValues(Resources |
| 108 | .discrete(flowRule.deviceId()).id(), TeRouterId.class); |
| 109 | |
| 110 | lrsIds.forEach(lsrId -> |
| 111 | { |
| 112 | if (pcepController.getClient(PccId.pccId(lsrId)) != null) { |
| 113 | pcc = pcepController.getClient(PccId.pccId(lsrId)); |
| 114 | } |
| 115 | });*/ |
| 116 | // TODO: Build message and send the PCEP label message via PCEP client |
| 117 | } else { |
| 118 | // TODO: Get the BGP peer based on deviceId and send the message |
| 119 | } |
| 120 | }); |
| 121 | } |
| 122 | |
| 123 | @Override |
| 124 | public void removeFlowRule(FlowRule... flowRules) { |
| 125 | for (FlowRule flowRule : flowRules) { |
| 126 | removeRule(flowRule); |
| 127 | } |
| 128 | } |
| 129 | |
| 130 | private void removeRule(FlowRule flowRule) { |
| 131 | flowRule.selector().criteria() |
| 132 | .forEach(c -> { |
| 133 | // If Criterion type is MPLS_LABEL, remove the specified flow rules |
| 134 | if (c.type() == Criterion.Type.MPLS_LABEL) { |
| 135 | PcepClient pcc; |
| 136 | /** PCC client session is based on LSR ID, get the LSR ID for a specific device to |
| 137 | push the flows */ |
| 138 | |
| 139 | //TODO: commented code has dependency with other patch |
| 140 | /* Set<TeRouterId> lrsIds = resourceService.getAvailableResourceValues(Resources |
| 141 | .discrete(flowRule.deviceId()).id(), TeRouterId.class); |
| 142 | |
| 143 | lrsIds.forEach(lsrId -> |
| 144 | { |
| 145 | if (pcepController.getClient(PccId.pccId(lsrId)) != null) { |
| 146 | pcc = pcepController.getClient(PccId.pccId(lsrId)); |
| 147 | } |
| 148 | });*/ |
| 149 | // TODO: Build message and send the PCEP label message via PCEP client |
| 150 | } else { |
| 151 | // TODO: Get the BGP peer based on deviceId and send the message |
| 152 | } |
| 153 | }); |
| 154 | } |
| 155 | |
| 156 | @Override |
| 157 | public void removeRulesById(ApplicationId id, FlowRule... flowRules) { |
| 158 | // TODO |
| 159 | removeFlowRule(flowRules); |
| 160 | } |
| 161 | |
| 162 | @Override |
| 163 | public void executeBatch(FlowRuleBatchOperation batch) { |
| 164 | //TODO |
| 165 | } |
| 166 | } |