/**
 * Copyright 2016 ZuInnoTe (Jörn Franke) <[email protected]>
 *
 * 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 org.zuinnote.spark.office.excel

import org.apache.hadoop.conf.Configuration
import org.apache.hadoop.mapreduce.TaskAttemptContext

import org.apache.spark.sql.execution.datasources.{ OutputWriter, OutputWriterFactory }
import org.apache.spark.sql.types.StructType

import org.zuinnote.hadoop.office.format.mapreduce.ExcelFileOutputFormat
import org.zuinnote.hadoop.office.format.common.HadoopOfficeWriteConfiguration

private[excel] class ExcelOutputWriterFactory(options: Map[String, String]) extends OutputWriterFactory {

  def newInstance(
    path:       String,
    bucketId:   Option[Int],
    dataSchema: StructType,
    context:    TaskAttemptContext): OutputWriter = {
    new ExcelOutputWriter(path, dataSchema, context, options)
  }

  def newInstance(
    path:       String,
    dataSchema: StructType,
    context:    TaskAttemptContext): OutputWriter = {
    new ExcelOutputWriter(path, dataSchema, context, options)
  }

  def getFileExtension(context: TaskAttemptContext): String = {
    val conf = context.getConfiguration();
    val defaultConf = conf.get(HadoopOfficeWriteConfiguration.CONF_MIMETYPE, ExcelFileOutputFormat.DEFAULT_MIMETYPE);
    conf.set(HadoopOfficeWriteConfiguration.CONF_MIMETYPE, defaultConf);
    ExcelFileOutputFormat.getSuffix(conf.get(HadoopOfficeWriteConfiguration.CONF_MIMETYPE))
  }

}