diff options
Diffstat (limited to 'framework/src/onos/core/store/persistence/src/main/java/org/onosproject/persistence/impl/DefaultPersistentMapBuilder.java')
-rw-r--r-- | framework/src/onos/core/store/persistence/src/main/java/org/onosproject/persistence/impl/DefaultPersistentMapBuilder.java | 63 |
1 files changed, 63 insertions, 0 deletions
diff --git a/framework/src/onos/core/store/persistence/src/main/java/org/onosproject/persistence/impl/DefaultPersistentMapBuilder.java b/framework/src/onos/core/store/persistence/src/main/java/org/onosproject/persistence/impl/DefaultPersistentMapBuilder.java new file mode 100644 index 00000000..88c7d148 --- /dev/null +++ b/framework/src/onos/core/store/persistence/src/main/java/org/onosproject/persistence/impl/DefaultPersistentMapBuilder.java @@ -0,0 +1,63 @@ +/* + * Copyright 2015 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); + } +}
\ No newline at end of file |