| /* |
| * Licensed to the Apache Software Foundation (ASF) under one or more |
| * contributor license agreements. See the NOTICE file distributed with |
| * this work for additional information regarding copyright ownership. |
| * The ASF licenses this file to You 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.apache.predictionio.data.storage.jdbc |
| |
| import grizzled.slf4j.Logging |
| import org.apache.predictionio.data.storage.Model |
| import org.apache.predictionio.data.storage.Models |
| import org.apache.predictionio.data.storage.StorageClientConfig |
| import scalikejdbc._ |
| |
| /** JDBC implementation of [[Models]] */ |
| class JDBCModels(client: String, config: StorageClientConfig, prefix: String) |
| extends Models with Logging { |
| /** Database table name for this data access object */ |
| val tableName = JDBCUtils.prefixTableName(prefix, "models") |
| |
| /** Determines binary column type based on JDBC driver type */ |
| val binaryColumnType = JDBCUtils.binaryColumnType(client) |
| DB autoCommit { implicit session => |
| sql""" |
| create table if not exists $tableName ( |
| id varchar(100) not null primary key, |
| models $binaryColumnType not null)""".execute().apply() |
| } |
| |
| def insert(i: Model): Unit = DB localTx { implicit session => |
| sql"insert into $tableName values(${i.id}, ${i.models})".update().apply() |
| } |
| |
| def get(id: String): Option[Model] = DB readOnly { implicit session => |
| sql"select id, models from $tableName where id = $id".map { r => |
| Model(id = r.string("id"), models = r.bytes("models")) |
| }.single().apply() |
| } |
| |
| def delete(id: String): Unit = DB localTx { implicit session => |
| sql"delete from $tableName where id = $id".execute().apply() |
| } |
| } |