com.stratio.common.utils.components.dao.GenericDAOComponent.scala Maven / Gradle / Ivy

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/**
 * Copyright (C) 2015 Stratio (http://stratio.com)
 *
 * 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 com.stratio.common.utils.components.dao

import com.stratio.common.utils.components.config.ConfigComponent
import com.stratio.common.utils.components.logger.LoggerComponent
import com.stratio.common.utils.components.repository.impl.ZookeeperRepositoryComponent
import org.json4s.DefaultFormats
import org.json4s.jackson.Serialization._

trait GenericDAOComponent[M <: AnyRef] extends DAOComponent[String, Array[Byte], M]
with ZookeeperRepositoryComponent {

  self: ConfigComponent with LoggerComponent =>

  val dao: DAO = new GenericDAO()

  implicit val formats = DefaultFormats

  class GenericDAO(key: Option[String] = None) extends DAO {

    def entity: String = {
      if (key.isEmpty || key.get.trim.isEmpty) throw new IllegalStateException("EntityName in the DAO must be defined")
      else key.get
    }

    override def fromVtoM[TM >: M <: M : Manifest](v: Array[Byte]): TM = read[TM](new String(v))

    override def fromMtoV[TM <: M : Manifest](m: TM): Array[Byte] = write(m).getBytes
  }
}