Lift Framework example source code file (MappedBinary.scala)

This example Lift Framework source code file (MappedBinary.scala) is included in the DevDaily.com "Java Source Code Warehouse" project. The intent of this project is to help you "Learn Java by Example" ^TM.

Java - Lift Framework tags/keywords

anyref, array, boolean, fatlazy, full, jdbc, method, method, object, reflection, sql, string, string, t, t, unit, unit, util

The Lift Framework MappedBinary.scala source code

/*
 * Copyright 2006-2011 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 mapper

import java.sql.Types
import java.lang.reflect.Method
import java.util.Date
import net.liftweb.util._
import Helpers._
import net.liftweb.common._
import net.liftweb.http.js._
import net.liftweb.json._

abstract class MappedBinary[T<:Mapper[T]](val fieldOwner: T) extends MappedField[Array[Byte], T] {
  private val data : FatLazy[Array[Byte]] =  FatLazy(defaultValue)
  private val orgData: FatLazy[Array[Byte]] = FatLazy(defaultValue)

  protected def real_i_set_!(value : Array[Byte]) : Array[Byte] = {
    data() = value
    this.dirty_?( true)
    value
  }

  def dbFieldClass = classOf[Array[Byte]]

  /**
  * Get the JDBC SQL Type for this field
  */
  //  def getTargetSQLType(field : String) = Types.BINARY
  def targetSQLType = Types.BINARY

  def defaultValue: Array[Byte] = null
  override def writePermission_? = true
  override def readPermission_? = true

  protected def i_is_! = data.get

  protected def i_was_! = orgData.get

  protected[mapper] def doneWithSave() {orgData.setFrom(data)}

  protected def i_obscure_!(in : Array[Byte]) : Array[Byte] = {
    new Array[Byte](0)
  }

  override def renderJs_? = false

  def asJsExp: JsExp = throw new NullPointerException("No way")

  def asJsonValue: Box[JsonAST.JValue] = Full(is match {
    case null => JsonAST.JNull
    case value => JsonAST.JString(base64Encode(value))
  })

  override def setFromAny(f: Any): Array[Byte] = f match {
    case null | JsonAST.JNull => this.set(null)
    case JsonAST.JString(base64) => this.set(base64Decode(base64))
    case array: Array[Byte] => this.set(array)
    case s => this.set(s.toString.getBytes("UTF-8"))
  }

  def jdbcFriendly(field : String) : Object = is

  def real_convertToJDBCFriendly(value: Array[Byte]): Object = value

  def buildSetActualValue(accessor: Method, inst: AnyRef, columnName: String): (T, AnyRef) => Unit =
  (inst, v) => doField(inst, accessor, {case f: MappedBinary[T] =>
    val toSet = v match {
      case null => null
      case ba: Array[Byte] => ba
      case other => other.toString.getBytes("UTF-8")
    }
    f.data() = toSet
    f.orgData() = toSet
  })

  def buildSetLongValue(accessor : Method, columnName : String): (T, Long, Boolean) => Unit = null
  def buildSetStringValue(accessor : Method, columnName : String): (T, String) => Unit  = null
  def buildSetDateValue(accessor : Method, columnName : String): (T, Date) => Unit = null
  def buildSetBooleanValue(accessor : Method, columnName : String): (T, Boolean, Boolean) => Unit = null

  /**
  * Given the driver type, return the string required to create the column in the database
  */
  def fieldCreatorString(dbType: DriverType, colName: String): String = colName + " " + dbType.binaryColumnType + notNullAppender()
}

abstract class MappedText[T<:Mapper[T]](val fieldOwner: T) extends MappedField[String, T] {
  private val data : FatLazy[String] =  FatLazy(defaultValue)
  private val orgData: FatLazy[String] = FatLazy(defaultValue)

  protected def real_i_set_!(value: String): String = {
    data() = value
    this.dirty_?( true)
    value
  }

  def dbFieldClass = classOf[String]

  /**
  * Get the JDBC SQL Type for this field
  */
  //  def getTargetSQLType(field : String) = Types.BINARY
  def targetSQLType = Types.VARCHAR

  def defaultValue: String = null
  override def writePermission_? = true
  override def readPermission_? = true

  protected def i_is_! = data.get

  protected def i_was_! = orgData.get

  protected[mapper] def doneWithSave() {orgData.setFrom(data)}

  def asJsExp: JsExp = JE.Str(is)

  def asJsonValue: Box[JsonAST.JValue] = Full(is match {
    case null => JsonAST.JNull
    case str => JsonAST.JString(str)
  })

  protected def i_obscure_!(in: String): String = ""

    override def setFromAny(in: Any): String = {
    in match {
      case JsonAST.JNull => this.set(null)
      case JsonAST.JString(str) => this.set(str)
      case seq: Seq[_] if !seq.isEmpty => seq.map(setFromAny).apply(0)
      case (s: String) :: _ => this.set(s)
      case s :: _ => this.setFromAny(s)
      case null => this.set(null)
      case s: String => this.set(s)
      case Some(s: String) => this.set(s)
      case Full(s: String) => this.set(s)
      case None | Empty | Failure(_, _, _) => this.set(null)
      case o => this.set(o.toString)
    }
  }

  def jdbcFriendly(field : String): Object = real_convertToJDBCFriendly(data.get)


  def real_convertToJDBCFriendly(value: String): Object = value match {
    case null => null
    case s => s
  }

  def buildSetActualValue(accessor: Method, inst: AnyRef, columnName: String): (T, AnyRef) => Unit =
  (inst, v) => doField(inst, accessor, {case f: MappedText[T] =>
    val toSet = v match {
      case null => null
      case s: String => s
      case ba: Array[Byte] => new String(ba, "UTF-8")
      case clob: java.sql.Clob => clob.getSubString(1,clob.length.toInt)
      case other => other.toString
    }
    f.data() = toSet
    f.orgData() = toSet
  })

  def buildSetLongValue(accessor : Method, columnName : String): (T, Long, Boolean) => Unit = null
  def buildSetStringValue(accessor : Method, columnName : String): (T, String) => Unit  = (inst, v) => doField(inst, accessor, {case f: MappedText[T] =>
    val toSet = v match {
      case null => null
      case other => other
    }
    f.data() = toSet
    f.orgData() = toSet
  })
  def buildSetDateValue(accessor : Method, columnName : String): (T, Date) => Unit = null
  def buildSetBooleanValue(accessor : Method, columnName : String): (T, Boolean, Boolean) => Unit = null

  /**
  * Given the driver type, return the string required to create the column in the database
  */
  def fieldCreatorString(dbType: DriverType, colName: String): String = colName + " " + dbType.clobColumnType + notNullAppender()
}

abstract class MappedFakeClob[T<:Mapper[T]](val fieldOwner: T) extends MappedField[String, T] {
  private val data : FatLazy[String] =  FatLazy(defaultValue)
  private val orgData: FatLazy[String] = FatLazy(defaultValue)

  protected def real_i_set_!(value: String): String = {
    data() = value
    this.dirty_?( true)
    value
  }

  def dbFieldClass = classOf[String]

  /**
  * Get the JDBC SQL Type for this field
  */
  //  def getTargetSQLType(field : String) = Types.BINARY
  def targetSQLType = Types.BINARY

  def defaultValue: String = null
  override def writePermission_? = true
  override def readPermission_? = true

  protected def i_is_! = data.get

  protected def i_was_! = orgData.get

  protected[mapper] def doneWithSave() {orgData.setFrom(data)}

  protected def i_obscure_!(in: String): String = ""

  def asJsExp: JsExp = JE.Str(is)

  def asJsonValue: Box[JsonAST.JValue] = Full(is match {
    case null => JsonAST.JNull
    case str => JsonAST.JString(str)
  })


    override def setFromAny(in: Any): String = {
    in match {
      case JsonAST.JNull => this.set(null)
      case JsonAST.JString(str) => this.set(str)
      case seq: Seq[_] if !seq.isEmpty => seq.map(setFromAny).apply(0)
      case (s: String) :: _ => this.set(s)
      case s :: _ => this.setFromAny(s)
      case null => this.set(null)
      case s: String => this.set(s)
      case Some(s: String) => this.set(s)
      case Full(s: String) => this.set(s)
      case None | Empty | Failure(_, _, _) => this.set(null)
      case o => this.set(o.toString)
    }
  }

  def jdbcFriendly(field : String): Object = real_convertToJDBCFriendly(data.get)


  def real_convertToJDBCFriendly(value: String): Object = value match {
    case null => null
    case s => s.getBytes("UTF-8")
  }

  def buildSetActualValue(accessor: Method, inst: AnyRef, columnName: String): (T, AnyRef) => Unit =
  (inst, v) => doField(inst, accessor, {case f: MappedFakeClob[T] =>
    val toSet = v match {
      case null => null
      case ba: Array[Byte] => new String(ba, "UTF-8")
      case clob: java.sql.Clob => clob.getSubString(1,clob.length.toInt)
      case other => other.toString
    }
    f.data() = toSet
    f.orgData() = toSet
  })

  def buildSetLongValue(accessor : Method, columnName : String): (T, Long, Boolean) => Unit = null
  def buildSetStringValue(accessor : Method, columnName : String): (T, String) => Unit  = (inst, v) => doField(inst, accessor, {case f: MappedFakeClob[T] =>
    val toSet = v match {
      case null => null
      case other => other
    }
    f.data() = toSet
    f.orgData() = toSet
  })
  def buildSetDateValue(accessor : Method, columnName : String): (T, Date) => Unit = null
  def buildSetBooleanValue(accessor : Method, columnName : String): (T, Boolean, Boolean) => Unit = null

  /**
  * Given the driver type, return the string required to create the column in the database
  */
  def fieldCreatorString(dbType: DriverType, colName: String): String = colName + " " + dbType.binaryColumnType + notNullAppender()
}