| /* |
| * Copyright 2015-present Open Networking Laboratory |
| * |
| * 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.persistence.impl; |
| |
| import org.mapdb.DB; |
| import org.onosproject.persistence.PersistentMapBuilder; |
| import org.onosproject.store.service.Serializer; |
| |
| import java.util.Map; |
| |
| import static com.google.common.base.Preconditions.checkArgument; |
| import static com.google.common.base.Preconditions.checkNotNull; |
| |
| /** |
| * Default builder for persistent maps stored in the mapDB local database via the persistence service. |
| */ |
| public class DefaultPersistentMapBuilder<K, V> implements PersistentMapBuilder<K, V> { |
| |
| private final DB localDB; |
| |
| private String name = null; |
| |
| private Serializer serializer = null; |
| |
| |
| public DefaultPersistentMapBuilder(DB localDB) { |
| checkNotNull(localDB, "The local database cannot be null."); |
| this.localDB = localDB; |
| } |
| |
| public PersistentMapBuilder<K, V> withName(String name) { |
| this.name = PersistenceManager.MAP_PREFIX + checkNotNull(name); |
| return this; |
| } |
| |
| public PersistentMapBuilder<K, V> withSerializer(Serializer serializer) { |
| checkArgument(this.serializer == null); |
| checkNotNull(serializer); |
| this.serializer = serializer; |
| return this; |
| } |
| |
| public Map<K, V> build() { |
| checkNotNull(name, "The name must be assigned."); |
| checkNotNull(serializer, "The key serializer must be assigned."); |
| |
| return new PersistentMap<K, V>(serializer, localDB, name); |
| } |
| } |