| /* |
| * Licensed to the Apache Software Foundation (ASF) under one or more |
| * contributor license agreements. See the NOTICE file distributed with |
| * this work for additional information regarding copyright ownership. |
| * The ASF 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 org.apache.carbondata.streaming.parser |
| |
| import java.text.SimpleDateFormat |
| import java.util |
| |
| import org.apache.hadoop.conf.Configuration |
| import org.apache.spark.sql.catalyst.encoders.{ExpressionEncoder, RowEncoder} |
| import org.apache.spark.sql.catalyst.InternalRow |
| import org.apache.spark.sql.Row |
| import org.apache.spark.sql.types.StructType |
| |
| import org.apache.carbondata.core.constants.CarbonCommonConstants |
| import org.apache.carbondata.processing.loading.ComplexDelimitersEnum |
| import org.apache.carbondata.processing.loading.constants.DataLoadProcessorConstants |
| |
| /** |
| * SparkSQL Row Stream Parser. |
| */ |
| class RowStreamParserImp extends CarbonStreamParser { |
| |
| var configuration: Configuration = _ |
| var isVarcharTypeMapping: Array[Boolean] = _ |
| var structType: StructType = _ |
| var encoder: ExpressionEncoder[Row] = _ |
| |
| var timeStampFormat: SimpleDateFormat = _ |
| var dateFormat: SimpleDateFormat = _ |
| val complexDelimiters: util.ArrayList[String] = new util.ArrayList[String]() |
| var serializationNullFormat: String = _ |
| |
| override def initialize(configuration: Configuration, |
| structType: StructType, isVarcharTypeMapping: Array[Boolean]): Unit = { |
| this.configuration = configuration |
| this.structType = structType |
| this.encoder = RowEncoder.apply(this.structType).resolveAndBind() |
| this.isVarcharTypeMapping = isVarcharTypeMapping |
| |
| this.timeStampFormat = new SimpleDateFormat( |
| this.configuration.get(CarbonCommonConstants.CARBON_TIMESTAMP_FORMAT)) |
| this.dateFormat = new SimpleDateFormat( |
| this.configuration.get(CarbonCommonConstants.CARBON_DATE_FORMAT)) |
| this.complexDelimiters.add(this.configuration.get("carbon_complex_delimiter_level_1")) |
| this.complexDelimiters.add(this.configuration.get("carbon_complex_delimiter_level_2")) |
| this.complexDelimiters.add(this.configuration.get("carbon_complex_delimiter_level_3")) |
| this.complexDelimiters.add(ComplexDelimitersEnum.COMPLEX_DELIMITERS_LEVEL_4.value()) |
| this.serializationNullFormat = |
| this.configuration.get(DataLoadProcessorConstants.SERIALIZATION_NULL_FORMAT) |
| } |
| |
| override def parserRow(value: InternalRow): Array[Object] = { |
| this.encoder.fromRow(value).toSeq.zipWithIndex.map { case (x, i) => |
| FieldConverter.objectToString( |
| x, serializationNullFormat, complexDelimiters, |
| timeStampFormat, dateFormat, |
| isVarcharType = i < this.isVarcharTypeMapping.length && this.isVarcharTypeMapping(i), |
| binaryCodec = null) |
| } }.toArray |
| |
| override def close(): Unit = { |
| } |
| |
| } |