Thomas Vachuska | 4f1a60c | 2014-10-28 13:39:07 -0700 | [diff] [blame] | 1 | /* |
Brian O'Connor | 5ab426f | 2016-04-09 01:19:45 -0700 | [diff] [blame] | 2 | * Copyright 2014-present Open Networking Laboratory |
Thomas Vachuska | 4f1a60c | 2014-10-28 13:39:07 -0700 | [diff] [blame] | 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 | */ |
Brian O'Connor | abafb50 | 2014-12-02 22:26:20 -0800 | [diff] [blame] | 16 | package org.onosproject.store.device.impl; |
Madan Jampani | 61056bc | 2014-09-27 09:07:26 -0700 | [diff] [blame] | 17 | |
| 18 | import static org.slf4j.LoggerFactory.getLogger; |
| 19 | |
Madan Jampani | 15d773c | 2015-02-25 15:31:55 -0800 | [diff] [blame] | 20 | import java.util.concurrent.atomic.AtomicLong; |
Madan Jampani | 61056bc | 2014-09-27 09:07:26 -0700 | [diff] [blame] | 21 | |
| 22 | import org.apache.felix.scr.annotations.Activate; |
| 23 | import org.apache.felix.scr.annotations.Component; |
| 24 | import org.apache.felix.scr.annotations.Deactivate; |
Madan Jampani | 565a66a | 2015-07-25 17:01:13 -0700 | [diff] [blame] | 25 | import org.apache.felix.scr.annotations.Reference; |
| 26 | import org.apache.felix.scr.annotations.ReferenceCardinality; |
Madan Jampani | 61056bc | 2014-09-27 09:07:26 -0700 | [diff] [blame] | 27 | import org.apache.felix.scr.annotations.Service; |
Madan Jampani | 565a66a | 2015-07-25 17:01:13 -0700 | [diff] [blame] | 28 | import org.onosproject.cluster.ClusterService; |
| 29 | import org.onosproject.cluster.NodeId; |
Brian O'Connor | abafb50 | 2014-12-02 22:26:20 -0800 | [diff] [blame] | 30 | import org.onosproject.mastership.MastershipTerm; |
Madan Jampani | 565a66a | 2015-07-25 17:01:13 -0700 | [diff] [blame] | 31 | import org.onosproject.mastership.MastershipTermService; |
Brian O'Connor | abafb50 | 2014-12-02 22:26:20 -0800 | [diff] [blame] | 32 | import org.onosproject.net.DeviceId; |
Brian O'Connor | abafb50 | 2014-12-02 22:26:20 -0800 | [diff] [blame] | 33 | import org.onosproject.net.device.DeviceClockService; |
| 34 | import org.onosproject.store.Timestamp; |
| 35 | import org.onosproject.store.impl.MastershipBasedTimestamp; |
Madan Jampani | 61056bc | 2014-09-27 09:07:26 -0700 | [diff] [blame] | 36 | import org.slf4j.Logger; |
| 37 | |
Yuta HIGUCHI | 67a527f | 2014-10-02 22:23:54 -0700 | [diff] [blame] | 38 | /** |
| 39 | * Clock service to issue Timestamp based on Device Mastership. |
| 40 | */ |
Madan Jampani | 61056bc | 2014-09-27 09:07:26 -0700 | [diff] [blame] | 41 | @Component(immediate = true) |
| 42 | @Service |
Madan Jampani | 565a66a | 2015-07-25 17:01:13 -0700 | [diff] [blame] | 43 | public class DeviceClockManager implements DeviceClockService { |
Yuta HIGUCHI | 2e96389 | 2014-09-27 13:00:39 -0700 | [diff] [blame] | 44 | |
Madan Jampani | 61056bc | 2014-09-27 09:07:26 -0700 | [diff] [blame] | 45 | private final Logger log = getLogger(getClass()); |
| 46 | |
Madan Jampani | 565a66a | 2015-07-25 17:01:13 -0700 | [diff] [blame] | 47 | @Reference(cardinality = ReferenceCardinality.MANDATORY_UNARY) |
| 48 | protected MastershipTermService mastershipTermService; |
| 49 | |
| 50 | @Reference(cardinality = ReferenceCardinality.MANDATORY_UNARY) |
| 51 | protected ClusterService clusterService; |
| 52 | |
| 53 | protected NodeId localNodeId; |
| 54 | |
Madan Jampani | 15d773c | 2015-02-25 15:31:55 -0800 | [diff] [blame] | 55 | private final AtomicLong ticker = new AtomicLong(0); |
Yuta HIGUCHI | 2e96389 | 2014-09-27 13:00:39 -0700 | [diff] [blame] | 56 | |
Madan Jampani | 61056bc | 2014-09-27 09:07:26 -0700 | [diff] [blame] | 57 | @Activate |
| 58 | public void activate() { |
Madan Jampani | 565a66a | 2015-07-25 17:01:13 -0700 | [diff] [blame] | 59 | localNodeId = clusterService.getLocalNode().id(); |
Madan Jampani | 61056bc | 2014-09-27 09:07:26 -0700 | [diff] [blame] | 60 | log.info("Started"); |
| 61 | } |
| 62 | |
| 63 | @Deactivate |
| 64 | public void deactivate() { |
| 65 | log.info("Stopped"); |
| 66 | } |
Yuta HIGUCHI | 2e96389 | 2014-09-27 13:00:39 -0700 | [diff] [blame] | 67 | |
Madan Jampani | 61056bc | 2014-09-27 09:07:26 -0700 | [diff] [blame] | 68 | @Override |
| 69 | public Timestamp getTimestamp(DeviceId deviceId) { |
Madan Jampani | 565a66a | 2015-07-25 17:01:13 -0700 | [diff] [blame] | 70 | MastershipTerm term = mastershipTermService.getMastershipTerm(deviceId); |
| 71 | if (term == null || !localNodeId.equals(term.master())) { |
HIGUCHI Yuta | 3a6f7cd | 2015-02-25 18:51:25 -0800 | [diff] [blame] | 72 | throw new IllegalStateException("Requesting timestamp for " + deviceId + " without mastership"); |
Madan Jampani | 61056bc | 2014-09-27 09:07:26 -0700 | [diff] [blame] | 73 | } |
Yuta HIGUCHI | 273dcc8 | 2014-10-03 00:32:12 -0700 | [diff] [blame] | 74 | return new MastershipBasedTimestamp(term.termNumber(), ticker.incrementAndGet()); |
Madan Jampani | 61056bc | 2014-09-27 09:07:26 -0700 | [diff] [blame] | 75 | } |
| 76 | |
| 77 | @Override |
Yuta HIGUCHI | 13c0b87 | 2014-10-30 18:09:22 -0700 | [diff] [blame] | 78 | public boolean isTimestampAvailable(DeviceId deviceId) { |
Madan Jampani | 565a66a | 2015-07-25 17:01:13 -0700 | [diff] [blame] | 79 | MastershipTerm term = mastershipTermService.getMastershipTerm(deviceId); |
| 80 | return term != null && localNodeId.equals(term.master()); |
Yuta HIGUCHI | 13c0b87 | 2014-10-30 18:09:22 -0700 | [diff] [blame] | 81 | } |
Madan Jampani | 61056bc | 2014-09-27 09:07:26 -0700 | [diff] [blame] | 82 | } |