Madan Jampani | 94c2353 | 2015-02-05 17:40:01 -0800 | [diff] [blame^] | 1 | package org.onosproject.store.consistent.impl; |
| 2 | |
| 3 | import java.util.Map; |
| 4 | import java.util.concurrent.CompletableFuture; |
| 5 | import java.util.concurrent.Executors; |
| 6 | |
| 7 | import net.kuujo.copycat.CopycatConfig; |
| 8 | import net.kuujo.copycat.cluster.ClusterConfig; |
| 9 | import net.kuujo.copycat.cluster.internal.coordinator.ClusterCoordinator; |
| 10 | import net.kuujo.copycat.cluster.internal.coordinator.DefaultClusterCoordinator; |
| 11 | import net.kuujo.copycat.util.concurrent.NamedThreadFactory; |
| 12 | |
| 13 | public interface PartitionedDatabaseManager { |
| 14 | /** |
| 15 | * Opens the database. |
| 16 | * |
| 17 | * @return A completable future to be completed with the result once complete. |
| 18 | */ |
| 19 | CompletableFuture<PartitionedDatabase> open(); |
| 20 | |
| 21 | /** |
| 22 | * Closes the database. |
| 23 | * |
| 24 | * @return A completable future to be completed with the result once complete. |
| 25 | */ |
| 26 | CompletableFuture<Void> close(); |
| 27 | |
| 28 | /** |
| 29 | * Sets the partitioner to use for mapping keys to partitions. |
| 30 | * |
| 31 | * @param partitioner partitioner |
| 32 | */ |
| 33 | void setPartitioner(Partitioner<String> partitioner); |
| 34 | |
| 35 | /** |
| 36 | * Registers a new partition. |
| 37 | * |
| 38 | * @param partitionName partition name. |
| 39 | * @param partition partition. |
| 40 | */ |
| 41 | void registerPartition(String partitionName, Database partition); |
| 42 | |
| 43 | /** |
| 44 | * Returns all the registered database partitions. |
| 45 | * |
| 46 | * @return mapping of all registered database partitions. |
| 47 | */ |
| 48 | Map<String, Database> getRegisteredPartitions(); |
| 49 | |
| 50 | |
| 51 | /** |
| 52 | * Creates a new partitioned database. |
| 53 | * |
| 54 | * @param name The database name. |
| 55 | * @param clusterConfig The cluster configuration. |
| 56 | * @param partitionedDatabaseConfig The database configuration. |
| 57 | |
| 58 | * @return The database. |
| 59 | */ |
| 60 | public static PartitionedDatabase create( |
| 61 | String name, |
| 62 | ClusterConfig clusterConfig, |
| 63 | PartitionedDatabaseConfig partitionedDatabaseConfig) { |
| 64 | CopycatConfig copycatConfig = new CopycatConfig() |
| 65 | .withName(name) |
| 66 | .withClusterConfig(clusterConfig) |
| 67 | .withDefaultExecutor(Executors.newSingleThreadExecutor(new NamedThreadFactory("copycat-coordinator-%d"))); |
| 68 | ClusterCoordinator coordinator = new DefaultClusterCoordinator(copycatConfig.resolve()); |
| 69 | PartitionedDatabase partitionedDatabase = new PartitionedDatabase(coordinator); |
| 70 | partitionedDatabaseConfig.partitions().forEach((partitionName, partitionConfig) -> |
| 71 | partitionedDatabase.registerPartition(partitionName , |
| 72 | coordinator.getResource(partitionName, partitionConfig.resolve(clusterConfig) |
| 73 | .withDefaultSerializer(copycatConfig.getDefaultSerializer().copy()) |
| 74 | .withDefaultExecutor(copycatConfig.getDefaultExecutor())))); |
| 75 | partitionedDatabase.setPartitioner( |
| 76 | new SimpleKeyHashPartitioner<>(partitionedDatabase.getRegisteredPartitions())); |
| 77 | return partitionedDatabase; |
| 78 | } |
| 79 | } |