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BinaryField.scala
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BinaryField.scala
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/*
* Copyright 2007-2011 WorldWide Conferencing, LLC
*
* 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 net.liftweb
package record
package field
import scala.xml._
import net.liftweb.common._
import net.liftweb.http.{S}
import net.liftweb.http.js._
import net.liftweb.json.JsonAST.JValue
import net.liftweb.util._
import Helpers._
import S._
import JE._
trait BinaryTypedField extends TypedField[Array[Byte]] {
def setFromAny(in: Any): Box[Array[Byte]] = genericSetFromAny(in)
def setFromString(s: String): Box[Array[Byte]] = s match {
case null|"" if optional_? => setBox(Empty)
case null|"" => setBox(Failure(notOptionalErrorMessage))
case _ => setBox(tryo(s.getBytes("UTF-8")))
}
def toForm: Box[NodeSeq] = Empty
def asJs = valueBox.map(v => Str(hexEncode(v))) openOr JsNull
def asJValue = asJString(base64Encode _)
def setFromJValue(jvalue: JValue) = setFromJString(jvalue)(s => tryo(base64Decode(s)))
}
class BinaryField[OwnerType <: Record[OwnerType]](rec: OwnerType)
extends Field[Array[Byte], OwnerType] with MandatoryTypedField[Array[Byte]] with BinaryTypedField {
def owner = rec
def this(rec: OwnerType, value: Array[Byte]) = {
this(rec)
set(value)
}
def defaultValue = Array(0)
}
class OptionalBinaryField[OwnerType <: Record[OwnerType]](rec: OwnerType)
extends Field[Array[Byte], OwnerType] with OptionalTypedField[Array[Byte]] with BinaryTypedField {
def owner = rec
def this(rec: OwnerType, value: Box[Array[Byte]]) = {
this(rec)
setBox(value)
}
}