| /* |
| * Copyright 2017-present Open Networking Foundation |
| * |
| * Licensed under the Apache License, Version 2.0 (the "License"); |
| * you may not use this file except in compliance with the License. |
| * You may obtain a copy of the License at |
| * |
| * http://www.apache.org/licenses/LICENSE-2.0 |
| * |
| * Unless required by applicable law or agreed to in writing, software |
| * distributed under the License is distributed on an "AS IS" BASIS, |
| * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. |
| * See the License for the specific language governing permissions and |
| * limitations under the License. |
| */ |
| package org.onosproject.store.primitives.impl; |
| |
| import java.util.Collection; |
| import java.util.Map; |
| |
| import com.google.common.base.MoreObjects; |
| import org.onosproject.cluster.PartitionId; |
| import org.onosproject.store.service.TransactionalMap; |
| |
| /** |
| * Partitioned transactional map. |
| */ |
| public class PartitionedTransactionalMap<K, V> implements TransactionalMap<K, V> { |
| protected final Map<PartitionId, TransactionalMapParticipant<K, V>> partitions; |
| protected final Hasher<K> hasher; |
| |
| public PartitionedTransactionalMap( |
| Map<PartitionId, TransactionalMapParticipant<K, V>> partitions, Hasher<K> hasher) { |
| this.partitions = partitions; |
| this.hasher = hasher; |
| } |
| |
| /** |
| * Returns the collection of map partitions. |
| * |
| * @return a collection of map partitions |
| */ |
| @SuppressWarnings("unchecked") |
| Collection<TransactionParticipant> participants() { |
| return (Collection) partitions.values(); |
| } |
| |
| /** |
| * Returns the partition for the given key. |
| * |
| * @param key the key for which to return the partition |
| * @return the partition for the given key |
| */ |
| private TransactionalMap<K, V> partition(K key) { |
| return partitions.get(hasher.hash(key)); |
| } |
| |
| @Override |
| public V get(K key) { |
| return partition(key).get(key); |
| } |
| |
| @Override |
| public boolean containsKey(K key) { |
| return partition(key).containsKey(key); |
| } |
| |
| @Override |
| public V put(K key, V value) { |
| return partition(key).put(key, value); |
| } |
| |
| @Override |
| public V remove(K key) { |
| return partition(key).remove(key); |
| } |
| |
| @Override |
| public V putIfAbsent(K key, V value) { |
| return partition(key).putIfAbsent(key, value); |
| } |
| |
| @Override |
| public boolean remove(K key, V value) { |
| return partition(key).remove(key, value); |
| } |
| |
| @Override |
| public boolean replace(K key, V oldValue, V newValue) { |
| return partition(key).replace(key, oldValue, newValue); |
| } |
| |
| @Override |
| public String toString() { |
| return MoreObjects.toStringHelper(this) |
| .add("partitions", partitions.values()) |
| .toString(); |
| } |
| } |