Ilayda Ozdemir | 4c5947c | 2020-05-05 13:14:32 +0000 | [diff] [blame^] | 1 | /* |
| 2 | * Copyright 2017-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.opencord.igmpproxy.impl.store.machine; |
| 17 | |
| 18 | import org.onlab.util.KryoNamespace; |
| 19 | import org.onosproject.store.serializers.KryoNamespaces; |
| 20 | import org.onosproject.store.service.AtomicCounterMap; |
| 21 | import org.onosproject.store.service.ConsistentMap; |
| 22 | import org.onosproject.store.service.Serializer; |
| 23 | import org.onosproject.store.service.StorageService; |
| 24 | import org.opencord.igmpproxy.impl.SingleStateMachine; |
| 25 | import org.opencord.igmpproxy.impl.SingleStateMachineSerializer; |
| 26 | import org.opencord.igmpproxy.statemachine.StateMachine; |
| 27 | import org.opencord.igmpproxy.statemachine.StateMachineId; |
| 28 | import org.opencord.igmpproxy.statemachine.StateMachineIdSerializer; |
| 29 | import org.osgi.service.component.annotations.Component; |
| 30 | import org.osgi.service.component.annotations.ReferenceCardinality; |
| 31 | import org.osgi.service.component.annotations.Reference; |
| 32 | import org.osgi.service.component.annotations.Activate; |
| 33 | import org.osgi.service.component.annotations.Deactivate; |
| 34 | import org.slf4j.Logger; |
| 35 | import org.slf4j.LoggerFactory; |
| 36 | |
| 37 | /** |
| 38 | * State machine store based on distributed storage. |
| 39 | */ |
| 40 | @Component(service = StateMachineStore.class) |
| 41 | public class DistributedStateMachineStore extends AbstractStateMachineStore { |
| 42 | private final Logger log = LoggerFactory.getLogger(getClass()); |
| 43 | private static final String STATE_MACHINE_COUNTER_STORE = "onos-state-machine-counter-store"; |
| 44 | private static final String STATE_MACHINE_MAP_NAME = "onos-state-machine-store"; |
| 45 | |
| 46 | @Reference(cardinality = ReferenceCardinality.MANDATORY) |
| 47 | protected StorageService storageService; |
| 48 | |
| 49 | private AtomicCounterMap<StateMachineId> stateMachineCounters; |
| 50 | |
| 51 | private ConsistentMap<StateMachineId, StateMachine> consistentMap; |
| 52 | |
| 53 | public DistributedStateMachineStore() { |
| 54 | super(); |
| 55 | } |
| 56 | |
| 57 | @Activate |
| 58 | public void activate() { |
| 59 | KryoNamespace.Builder stateMachineKryoBuilder = KryoNamespace.newBuilder() |
| 60 | .register(KryoNamespaces.API) |
| 61 | .register(new StateMachineIdSerializer(), StateMachineId.class); |
| 62 | |
| 63 | stateMachineCounters = storageService.<StateMachineId>atomicCounterMapBuilder() |
| 64 | .withName(STATE_MACHINE_COUNTER_STORE) |
| 65 | .withSerializer(Serializer.using(stateMachineKryoBuilder.build())).build(); |
| 66 | |
| 67 | stateMachineKryoBuilder |
| 68 | .register(new SingleStateMachineSerializer(), SingleStateMachine.class); |
| 69 | this.consistentMap = storageService.<StateMachineId, StateMachine>consistentMapBuilder() |
| 70 | .withName(STATE_MACHINE_MAP_NAME) |
| 71 | .withSerializer(Serializer.using(stateMachineKryoBuilder.build())) |
| 72 | .build(); |
| 73 | super.stateMachineMap = consistentMap.asJavaMap(); |
| 74 | |
| 75 | |
| 76 | log.info("Started."); |
| 77 | } |
| 78 | |
| 79 | @Deactivate |
| 80 | public void deactivate() { |
| 81 | stateMachineMap.clear(); |
| 82 | stateMachineMap = null; |
| 83 | consistentMap.destroy(); |
| 84 | stateMachineCounters.clear(); |
| 85 | stateMachineCounters.destroy(); |
| 86 | log.info("Stopped."); |
| 87 | } |
| 88 | |
| 89 | @Override |
| 90 | public long increaseAndGetCounter(StateMachineId stateMachineId) { |
| 91 | return stateMachineCounters.incrementAndGet(stateMachineId); |
| 92 | } |
| 93 | |
| 94 | @Override |
| 95 | public long decreaseAndGetCounter(StateMachineId stateMachineId) { |
| 96 | if (stateMachineCounters.get(stateMachineId) > 0) { |
| 97 | return stateMachineCounters.decrementAndGet(stateMachineId); |
| 98 | } else { |
| 99 | return stateMachineCounters.get(stateMachineId); |
| 100 | } |
| 101 | } |
| 102 | |
| 103 | @Override |
| 104 | public long getCounter(StateMachineId stateMachineId) { |
| 105 | return stateMachineCounters.get(stateMachineId); |
| 106 | } |
| 107 | |
| 108 | @Override |
| 109 | public boolean removeCounter(StateMachineId stateMachineId) { |
| 110 | stateMachineCounters.remove(stateMachineId); |
| 111 | return true; |
| 112 | } |
| 113 | |
| 114 | @Override |
| 115 | public void clearAllStateMachines() { |
| 116 | super.clearAllStateMachines(); |
| 117 | stateMachineCounters.clear(); |
| 118 | } |
| 119 | } |