com.github.mauricio.async.db.column.DateEncoderDecoder.scala Maven / Gradle / Ivy

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/*
 * Copyright 2013 Maurício Linhares
 *
 * Maurício Linhares 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 com.github.mauricio.async.db.column

import org.joda.time.format.DateTimeFormat
import org.joda.time.{ReadablePartial, LocalDate}
import com.github.mauricio.async.db.exceptions.DateEncoderNotAvailableException

object DateEncoderDecoder extends ColumnEncoderDecoder {

  private val ZeroedDate = "0000-00-00"

  private val formatter = DateTimeFormat.forPattern("yyyy-MM-dd")

  override def decode(value: String): LocalDate =
    if ( ZeroedDate == value ) {
      null
    } else {
      this.formatter.parseLocalDate(value)
    }

  override def encode(value: Any): String = {
    value match {
      case d: java.sql.Date => this.formatter.print(new LocalDate(d))
      case d: ReadablePartial => this.formatter.print(d)
      case _ => throw new DateEncoderNotAvailableException(value)
    }
  }

}