Madan Jampani | b5d72d5 | 2015-04-03 16:53:50 -0700 | [diff] [blame] | 1 | /* |
| 2 | * Copyright 2015 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 | */ |
Madan Jampani | f4c8850 | 2016-01-21 12:35:36 -0800 | [diff] [blame] | 16 | package org.onosproject.store.primitives.impl; |
Madan Jampani | b5d72d5 | 2015-04-03 16:53:50 -0700 | [diff] [blame] | 17 | |
Flavio Castro | 41b1f3a | 2015-07-31 13:51:32 -0700 | [diff] [blame] | 18 | import org.onosproject.store.service.AsyncAtomicCounter; |
Aaron Kruglikov | 1110b2c | 2016-02-02 16:24:37 -0800 | [diff] [blame] | 19 | import org.onosproject.utils.MeteringAgent; |
Flavio Castro | 41b1f3a | 2015-07-31 13:51:32 -0700 | [diff] [blame] | 20 | |
Madan Jampani | b5d72d5 | 2015-04-03 16:53:50 -0700 | [diff] [blame] | 21 | import java.util.concurrent.CompletableFuture; |
andrea | fd912ac | 2015-10-02 14:58:35 -0700 | [diff] [blame] | 22 | |
Flavio Castro | 41b1f3a | 2015-07-31 13:51:32 -0700 | [diff] [blame] | 23 | import static com.google.common.base.Preconditions.checkNotNull; |
Madan Jampani | b5d72d5 | 2015-04-03 16:53:50 -0700 | [diff] [blame] | 24 | |
| 25 | /** |
| 26 | * Default implementation for a distributed AsyncAtomicCounter backed by |
| 27 | * partitioned Raft DB. |
| 28 | * <p> |
| 29 | * The initial value will be zero. |
| 30 | */ |
| 31 | public class DefaultAsyncAtomicCounter implements AsyncAtomicCounter { |
| 32 | |
| 33 | private final String name; |
| 34 | private final Database database; |
Flavio Castro | 41b1f3a | 2015-07-31 13:51:32 -0700 | [diff] [blame] | 35 | private final MeteringAgent monitor; |
| 36 | |
| 37 | private static final String PRIMITIVE_NAME = "atomicCounter"; |
| 38 | private static final String INCREMENT_AND_GET = "incrementAndGet"; |
| 39 | private static final String GET_AND_INCREMENT = "getAndIncrement"; |
| 40 | private static final String GET_AND_ADD = "getAndAdd"; |
| 41 | private static final String ADD_AND_GET = "addAndGet"; |
| 42 | private static final String GET = "get"; |
andrea | fd912ac | 2015-10-02 14:58:35 -0700 | [diff] [blame] | 43 | private static final String SET = "set"; |
Aaron Kruglikov | 82fd632 | 2015-10-06 12:02:46 -0700 | [diff] [blame] | 44 | private static final String COMPARE_AND_SET = "compareAndSet"; |
Madan Jampani | b5d72d5 | 2015-04-03 16:53:50 -0700 | [diff] [blame] | 45 | |
Madan Jampani | f4d58f3 | 2015-06-05 17:38:22 -0700 | [diff] [blame] | 46 | public DefaultAsyncAtomicCounter(String name, |
Flavio Castro | 41b1f3a | 2015-07-31 13:51:32 -0700 | [diff] [blame] | 47 | Database database, |
Madan Jampani | a29c677 | 2015-08-17 13:17:07 -0700 | [diff] [blame] | 48 | boolean meteringEnabled) { |
Madan Jampani | b5d72d5 | 2015-04-03 16:53:50 -0700 | [diff] [blame] | 49 | this.name = checkNotNull(name); |
| 50 | this.database = checkNotNull(database); |
Flavio Castro | 41b1f3a | 2015-07-31 13:51:32 -0700 | [diff] [blame] | 51 | this.monitor = new MeteringAgent(PRIMITIVE_NAME, name, meteringEnabled); |
Madan Jampani | b5d72d5 | 2015-04-03 16:53:50 -0700 | [diff] [blame] | 52 | } |
| 53 | |
| 54 | @Override |
Madan Jampani | a090a11 | 2016-01-18 16:38:17 -0800 | [diff] [blame] | 55 | public String name() { |
| 56 | return name; |
| 57 | } |
| 58 | |
| 59 | @Override |
Madan Jampani | b5d72d5 | 2015-04-03 16:53:50 -0700 | [diff] [blame] | 60 | public CompletableFuture<Long> incrementAndGet() { |
Flavio Castro | 41b1f3a | 2015-07-31 13:51:32 -0700 | [diff] [blame] | 61 | final MeteringAgent.Context timer = monitor.startTimer(INCREMENT_AND_GET); |
| 62 | return addAndGet(1L) |
Flavio Castro | 6e04461 | 2015-08-13 14:13:58 -0700 | [diff] [blame] | 63 | .whenComplete((r, e) -> timer.stop(e)); |
Madan Jampani | b5d72d5 | 2015-04-03 16:53:50 -0700 | [diff] [blame] | 64 | } |
| 65 | |
| 66 | @Override |
| 67 | public CompletableFuture<Long> get() { |
Flavio Castro | 41b1f3a | 2015-07-31 13:51:32 -0700 | [diff] [blame] | 68 | final MeteringAgent.Context timer = monitor.startTimer(GET); |
| 69 | return database.counterGet(name) |
Flavio Castro | 6e04461 | 2015-08-13 14:13:58 -0700 | [diff] [blame] | 70 | .whenComplete((r, e) -> timer.stop(e)); |
Madan Jampani | 04aeb45 | 2015-05-02 16:12:24 -0700 | [diff] [blame] | 71 | } |
| 72 | |
| 73 | @Override |
| 74 | public CompletableFuture<Long> getAndIncrement() { |
Flavio Castro | 41b1f3a | 2015-07-31 13:51:32 -0700 | [diff] [blame] | 75 | final MeteringAgent.Context timer = monitor.startTimer(GET_AND_INCREMENT); |
| 76 | return getAndAdd(1L) |
Flavio Castro | 6e04461 | 2015-08-13 14:13:58 -0700 | [diff] [blame] | 77 | .whenComplete((r, e) -> timer.stop(e)); |
Madan Jampani | 04aeb45 | 2015-05-02 16:12:24 -0700 | [diff] [blame] | 78 | } |
| 79 | |
| 80 | @Override |
| 81 | public CompletableFuture<Long> getAndAdd(long delta) { |
Flavio Castro | 41b1f3a | 2015-07-31 13:51:32 -0700 | [diff] [blame] | 82 | final MeteringAgent.Context timer = monitor.startTimer(GET_AND_ADD); |
Madan Jampani | a29c677 | 2015-08-17 13:17:07 -0700 | [diff] [blame] | 83 | return database.counterGetAndAdd(name, delta) |
andrea | fd912ac | 2015-10-02 14:58:35 -0700 | [diff] [blame] | 84 | .whenComplete((r, e) -> timer.stop(e)); |
Madan Jampani | 04aeb45 | 2015-05-02 16:12:24 -0700 | [diff] [blame] | 85 | } |
| 86 | |
| 87 | @Override |
| 88 | public CompletableFuture<Long> addAndGet(long delta) { |
Flavio Castro | 41b1f3a | 2015-07-31 13:51:32 -0700 | [diff] [blame] | 89 | final MeteringAgent.Context timer = monitor.startTimer(ADD_AND_GET); |
Madan Jampani | a29c677 | 2015-08-17 13:17:07 -0700 | [diff] [blame] | 90 | return database.counterAddAndGet(name, delta) |
andrea | fd912ac | 2015-10-02 14:58:35 -0700 | [diff] [blame] | 91 | .whenComplete((r, e) -> timer.stop(e)); |
| 92 | } |
| 93 | |
| 94 | @Override |
| 95 | public CompletableFuture<Void> set(long value) { |
| 96 | final MeteringAgent.Context timer = monitor.startTimer(SET); |
| 97 | return database.counterSet(name, value) |
| 98 | .whenComplete((r, e) -> timer.stop(e)); |
Madan Jampani | f4d58f3 | 2015-06-05 17:38:22 -0700 | [diff] [blame] | 99 | } |
Aaron Kruglikov | 82fd632 | 2015-10-06 12:02:46 -0700 | [diff] [blame] | 100 | |
| 101 | @Override |
| 102 | public CompletableFuture<Boolean> compareAndSet(long expectedValue, long updateValue) { |
| 103 | final MeteringAgent.Context timer = monitor.startTimer(COMPARE_AND_SET); |
| 104 | return database.counterCompareAndSet(name, expectedValue, updateValue) |
| 105 | .whenComplete((r, e) -> timer.stop(e)); |
| 106 | } |
Flavio Castro | 6e04461 | 2015-08-13 14:13:58 -0700 | [diff] [blame] | 107 | } |