processing/src/main/java/org/apache/carbondata/processing/loading/model/CarbonLoadModelBuilder.java - carbondata - Git at Google

 /*
  * 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.processing.loading.model;

 import java.io.IOException;
 import java.text.SimpleDateFormat;
 import java.util.ArrayList;
 import java.util.HashMap;
 import java.util.List;
 import java.util.Map;

 import org.apache.carbondata.common.Maps;
 import org.apache.carbondata.common.Strings;
 import org.apache.carbondata.common.annotations.InterfaceAudience;
 import org.apache.carbondata.common.constants.LoggerAction;
 import org.apache.carbondata.common.exceptions.sql.InvalidLoadOptionException;
 import org.apache.carbondata.common.logging.LogServiceFactory;
 import org.apache.carbondata.core.constants.CarbonCommonConstants;
 import org.apache.carbondata.core.constants.SortScopeOptions;
 import org.apache.carbondata.core.datastore.compression.CompressorFactory;
 import org.apache.carbondata.core.metadata.schema.table.CarbonTable;
 import org.apache.carbondata.core.metadata.schema.table.column.CarbonColumn;
 import org.apache.carbondata.core.util.CarbonProperties;
 import org.apache.carbondata.core.util.CarbonUtil;
 import org.apache.carbondata.processing.loading.constants.DataLoadProcessorConstants;
 import org.apache.carbondata.processing.loading.csvinput.CSVInputFormat;
 import org.apache.carbondata.processing.util.CarbonBadRecordUtil;
 import org.apache.carbondata.processing.util.TableOptionConstant;

 import org.apache.commons.lang.StringUtils;
 import org.apache.hadoop.conf.Configuration;
 import org.apache.log4j.Logger;

 /**
  * Builder for {@link CarbonLoadModel}
  */
 @InterfaceAudience.Internal
 public class CarbonLoadModelBuilder {
   private static final Logger LOGGER = LogServiceFactory.getLogService(
       CarbonLoadModelBuilder.class.getName());
   private CarbonTable table;

   public CarbonLoadModelBuilder(CarbonTable table) {
     this.table = table;
   }

   /**
    * build CarbonLoadModel for data loading
    * @param options Load options from user input
    * @param taskNo
    * @return a new CarbonLoadModel instance
    */
   public CarbonLoadModel build(Map<String, String>  options, long timestamp, String taskNo)
       throws InvalidLoadOptionException, IOException {
     Map<String, String> optionsFinal = LoadOption.fillOptionWithDefaultValue(options);

     if (!options.containsKey("fileheader")) {
       List<CarbonColumn> csvHeader = table.getCreateOrderColumn(table.getTableName());
       String[] columns = new String[csvHeader.size()];
       for (int i = 0; i < columns.length; i++) {
         columns[i] = csvHeader.get(i).getColName();
       }
       optionsFinal.put("fileheader", Strings.mkString(columns, ","));
     }
     optionsFinal.put("bad_record_path", CarbonBadRecordUtil.getBadRecordsPath(options, table));
     optionsFinal.put("sort_scope",
         Maps.getOrDefault(options, "sort_scope", CarbonCommonConstants.LOAD_SORT_SCOPE_DEFAULT));
     CarbonLoadModel model = new CarbonLoadModel();
     model.setCarbonTransactionalTable(table.isTransactionalTable());
     model.setFactTimeStamp(timestamp);
     model.setTaskNo(taskNo);

     // we have provided 'fileheader', so it hadoopConf can be null
     build(options, optionsFinal, model, null);
     String timestampFormat = options.get("timestampformat");
     if (timestampFormat == null) {
       timestampFormat = CarbonProperties.getInstance()
           .getProperty(CarbonCommonConstants.CARBON_TIMESTAMP_FORMAT,
               CarbonCommonConstants.CARBON_TIMESTAMP_DEFAULT_FORMAT);
     }
     String dateFormat = options.get("dateFormat");
     if (dateFormat == null) {
       dateFormat = CarbonProperties.getInstance()
           .getProperty(CarbonCommonConstants.CARBON_DATE_FORMAT,
               CarbonCommonConstants.CARBON_DATE_DEFAULT_FORMAT);
     }
     model.setDateFormat(dateFormat);
     model.setTimestampformat(timestampFormat);
     model.setUseOnePass(Boolean.parseBoolean(Maps.getOrDefault(options, "onepass", "false")));
     model.setDictionaryServerHost(Maps.getOrDefault(options, "dicthost", null));
     try {
       model.setDictionaryServerPort(Integer.parseInt(Maps.getOrDefault(options, "dictport", "-1")));
     } catch (NumberFormatException e) {
       throw new InvalidLoadOptionException(e.getMessage());
     }
     validateAndSetColumnCompressor(model);
     return model;
   }

   /**
    * build CarbonLoadModel for data loading
    * @param options Load options from user input
    * @param optionsFinal Load options that populated with default values for optional options
    * @param carbonLoadModel The output load model
    * @param hadoopConf hadoopConf is needed to read CSV header if there 'fileheader' is not set in
    *                   user provided load options
    */
   public void build(
       Map<String, String> options,
       Map<String, String> optionsFinal,
       CarbonLoadModel carbonLoadModel,
       Configuration hadoopConf) throws InvalidLoadOptionException, IOException {
     build(options, optionsFinal, carbonLoadModel, hadoopConf, new HashMap<String, String>(), false);
   }

   /**
    * build CarbonLoadModel for data loading
    * @param options Load options from user input
    * @param optionsFinal Load options that populated with default values for optional options
    * @param carbonLoadModel The output load model
    * @param hadoopConf hadoopConf is needed to read CSV header if there 'fileheader' is not set in
    *                   user provided load options
    * @param partitions partition name map to path
    * @param isDataFrame true if build for load for dataframe
    */
   public void build(
       Map<String, String> options,
       Map<String, String> optionsFinal,
       CarbonLoadModel carbonLoadModel,
       Configuration hadoopConf,
       Map<String, String> partitions,
       boolean isDataFrame) throws InvalidLoadOptionException, IOException {
     carbonLoadModel.setTableName(table.getTableName());
     carbonLoadModel.setDatabaseName(table.getDatabaseName());
     carbonLoadModel.setTablePath(table.getTablePath());
     carbonLoadModel.setTableName(table.getTableName());
     carbonLoadModel.setCarbonTransactionalTable(table.isTransactionalTable());
     CarbonDataLoadSchema dataLoadSchema = new CarbonDataLoadSchema(table);
     // Need to fill dimension relation
     carbonLoadModel.setCarbonDataLoadSchema(dataLoadSchema);
     String sort_scope = optionsFinal.get("sort_scope");
     String single_pass = optionsFinal.get("single_pass");
     String bad_records_logger_enable = optionsFinal.get("bad_records_logger_enable");
     String bad_records_action = optionsFinal.get("bad_records_action");
     String bad_record_path = optionsFinal.get("bad_record_path");
     String global_sort_partitions = optionsFinal.get("global_sort_partitions");
     String timestampformat = optionsFinal.get("timestampformat");
     String dateFormat = optionsFinal.get("dateformat");
     String delimeter = optionsFinal.get("delimiter");
     String complex_delimeter_level1 = optionsFinal.get("complex_delimiter_level_1");
     String complex_delimeter_level2 = optionsFinal.get("complex_delimiter_level_2");
     String complex_delimeter_level3 = optionsFinal.get("complex_delimiter_level_3");
     String complex_delimeter_level4 = optionsFinal.get("complex_delimiter_level_4");
     String all_dictionary_path = optionsFinal.get("all_dictionary_path");
     String column_dict = optionsFinal.get("columndict");
     validateDateTimeFormat(timestampformat, "TimestampFormat");
     validateDateTimeFormat(dateFormat, "DateFormat");
     validateSortScope(sort_scope);

     if (Boolean.parseBoolean(bad_records_logger_enable) ||
         LoggerAction.REDIRECT.name().equalsIgnoreCase(bad_records_action)) {
       if (!StringUtils.isEmpty(bad_record_path)) {
         bad_record_path = CarbonUtil.checkAndAppendHDFSUrl(bad_record_path);
       } else {
         throw new InvalidLoadOptionException(
             "Cannot redirect bad records as bad record location is not provided.");
       }
     }

     carbonLoadModel.setBadRecordsLocation(bad_record_path);

     validateGlobalSortPartitions(global_sort_partitions);
     carbonLoadModel.setEscapeChar(checkDefaultValue(optionsFinal.get("escapechar"), "\\"));
     carbonLoadModel.setQuoteChar(checkDefaultValue(optionsFinal.get("quotechar"), "\""));
     carbonLoadModel.setCommentChar(checkDefaultValue(optionsFinal.get("commentchar"), "#"));

     // if there isn't file header in csv file and load sql doesn't provide FILEHEADER option,
     // we should use table schema to generate file header.
     String fileHeader = optionsFinal.get("fileheader");
     String headerOption = options.get("header");
     if (headerOption != null) {
       if (!headerOption.equalsIgnoreCase("true") &&
           !headerOption.equalsIgnoreCase("false")) {
         throw new InvalidLoadOptionException(
             "'header' option should be either 'true' or 'false'.");
       }
       // whether the csv file has file header, the default value is true
       if (Boolean.valueOf(headerOption)) {
         if (!StringUtils.isEmpty(fileHeader)) {
           throw new InvalidLoadOptionException(
               "When 'header' option is true, 'fileheader' option is not required.");
         }
       } else {
         if (StringUtils.isEmpty(fileHeader)) {
           List<CarbonColumn> columns = table.getCreateOrderColumn(table.getTableName());
           List<String> columnNames = new ArrayList<>();
           List<String> partitionColumns = new ArrayList<>();
           for (int i = 0; i < columns.size(); i++) {
             if (table.getPartitionInfo() != null && table.getPartitionInfo().getColumnSchemaList()
                 .contains(columns.get(i).getColumnSchema())) {
               partitionColumns.add(columns.get(i).getColName());
             } else {
               columnNames.add(columns.get(i).getColName());
             }
           }
           columnNames.addAll(partitionColumns);
           fileHeader = Strings.mkString(columnNames.toArray(new String[columnNames.size()]), ",");
         }
       }
     }

     carbonLoadModel.setTimestampformat(timestampformat);
     carbonLoadModel.setDateFormat(dateFormat);
     carbonLoadModel.setDefaultTimestampFormat(
         CarbonProperties.getInstance().getProperty(
             CarbonCommonConstants.CARBON_TIMESTAMP_FORMAT,
             CarbonCommonConstants.CARBON_TIMESTAMP_DEFAULT_FORMAT));

     carbonLoadModel.setDefaultDateFormat(
         CarbonProperties.getInstance().getProperty(
             CarbonCommonConstants.CARBON_DATE_FORMAT,
             CarbonCommonConstants.CARBON_DATE_DEFAULT_FORMAT));

     carbonLoadModel.setSerializationNullFormat(
         TableOptionConstant.SERIALIZATION_NULL_FORMAT.getName() + "," +
             optionsFinal.get("serialization_null_format"));

     carbonLoadModel.setBadRecordsLoggerEnable(
         TableOptionConstant.BAD_RECORDS_LOGGER_ENABLE.getName() + "," + bad_records_logger_enable);

     carbonLoadModel.setBadRecordsAction(
         TableOptionConstant.BAD_RECORDS_ACTION.getName() + "," + bad_records_action.toUpperCase());

     carbonLoadModel.setIsEmptyDataBadRecord(
         DataLoadProcessorConstants.IS_EMPTY_DATA_BAD_RECORD + "," +
             optionsFinal.get("is_empty_data_bad_record"));

     carbonLoadModel.setSkipEmptyLine(optionsFinal.get("skip_empty_line"));

     carbonLoadModel.setSortScope(sort_scope);
     carbonLoadModel.setBatchSortSizeInMb(optionsFinal.get("batch_sort_size_inmb"));
     carbonLoadModel.setGlobalSortPartitions(global_sort_partitions);
     carbonLoadModel.setUseOnePass(Boolean.parseBoolean(single_pass));

     if (delimeter.equalsIgnoreCase(complex_delimeter_level1) ||
         complex_delimeter_level1.equalsIgnoreCase(complex_delimeter_level2) ||
         delimeter.equalsIgnoreCase(complex_delimeter_level2) ||
         delimeter.equalsIgnoreCase(complex_delimeter_level3)) {
       throw new InvalidLoadOptionException("Field Delimiter and Complex types delimiter are same");
     } else {
       carbonLoadModel.setComplexDelimiter(complex_delimeter_level1);
       carbonLoadModel.setComplexDelimiter(complex_delimeter_level2);
       carbonLoadModel.setComplexDelimiter(complex_delimeter_level3);
       carbonLoadModel.setComplexDelimiter(complex_delimeter_level4);
     }
     // set local dictionary path, and dictionary file extension
     carbonLoadModel.setAllDictPath(all_dictionary_path);
     carbonLoadModel.setCsvDelimiter(CarbonUtil.unescapeChar(delimeter));
     carbonLoadModel.setCsvHeader(fileHeader);
     carbonLoadModel.setColDictFilePath(column_dict);

     List<String> ignoreColumns = new ArrayList<>();
     if (!isDataFrame) {
       for (Map.Entry<String, String> partition : partitions.entrySet()) {
         if (partition.getValue() != null) {
           ignoreColumns.add(partition.getKey());
         }
       }
     }

     carbonLoadModel.setCsvHeaderColumns(
         LoadOption.getCsvHeaderColumns(carbonLoadModel, hadoopConf, ignoreColumns));

     int validatedMaxColumns = validateMaxColumns(
         carbonLoadModel.getCsvHeaderColumns(),
         optionsFinal.get("maxcolumns"));

     carbonLoadModel.setMaxColumns(String.valueOf(validatedMaxColumns));
     if (carbonLoadModel.isCarbonTransactionalTable()) {
       carbonLoadModel.readAndSetLoadMetadataDetails();
     }
     carbonLoadModel.setSortColumnsBoundsStr(optionsFinal.get("sort_column_bounds"));
     carbonLoadModel.setLoadMinSize(
         optionsFinal.get(CarbonCommonConstants.CARBON_LOAD_MIN_SIZE_INMB));
     validateAndSetLoadMinSize(carbonLoadModel);

     validateAndSetColumnCompressor(carbonLoadModel);
   }

   private int validateMaxColumns(String[] csvHeaders, String maxColumns)
       throws InvalidLoadOptionException {
     /*
     User configures both csvheadercolumns, maxcolumns,
       if csvheadercolumns >= maxcolumns, give error
       if maxcolumns > threashold, give error
     User configures csvheadercolumns
       if csvheadercolumns >= maxcolumns(default) then maxcolumns = csvheadercolumns+1
       if csvheadercolumns >= threashold, give error
     User configures nothing
       if csvheadercolumns >= maxcolumns(default) then maxcolumns = csvheadercolumns+1
       if csvheadercolumns >= threashold, give error
      */
     int columnCountInSchema = csvHeaders.length;
     int maxNumberOfColumnsForParsing = 0;
     Integer maxColumnsInt = getMaxColumnValue(maxColumns);
     if (maxColumnsInt != null) {
       if (columnCountInSchema >= maxColumnsInt) {
         throw new InvalidLoadOptionException(
             "csv headers should be less than the max columns " + maxColumnsInt);
       } else if (maxColumnsInt > CSVInputFormat.THRESHOLD_MAX_NUMBER_OF_COLUMNS_FOR_PARSING) {
         throw new InvalidLoadOptionException(
             "max columns cannot be greater than the threshold value: " +
                 CSVInputFormat.THRESHOLD_MAX_NUMBER_OF_COLUMNS_FOR_PARSING);
       } else {
         maxNumberOfColumnsForParsing = maxColumnsInt;
       }
     } else if (columnCountInSchema >= CSVInputFormat.THRESHOLD_MAX_NUMBER_OF_COLUMNS_FOR_PARSING) {
       throw new InvalidLoadOptionException(
           "csv header columns should be less than max threashold: " +
               CSVInputFormat.THRESHOLD_MAX_NUMBER_OF_COLUMNS_FOR_PARSING);
     } else if (columnCountInSchema >= CSVInputFormat.DEFAULT_MAX_NUMBER_OF_COLUMNS_FOR_PARSING) {
       maxNumberOfColumnsForParsing = columnCountInSchema + 1;
     } else {
       maxNumberOfColumnsForParsing = CSVInputFormat.DEFAULT_MAX_NUMBER_OF_COLUMNS_FOR_PARSING;
     }
     return maxNumberOfColumnsForParsing;
   }

   private Integer getMaxColumnValue(String maxColumn) {
     return (maxColumn == null) ? null : Integer.parseInt(maxColumn);
   }

   /**
    * validates both timestamp and date for illegal values
    */
   private void validateDateTimeFormat(String dateTimeLoadFormat, String dateTimeLoadOption)
       throws InvalidLoadOptionException {
     // allowing empty value to be configured for dateformat option.
     if (dateTimeLoadFormat != null && !dateTimeLoadFormat.trim().equalsIgnoreCase("")) {
       try {
         new SimpleDateFormat(dateTimeLoadFormat);
       } catch (IllegalArgumentException e) {
         throw new InvalidLoadOptionException(
             "Error: Wrong option: " + dateTimeLoadFormat + " is provided for option "
                 + dateTimeLoadOption);
       }
     }
   }

   private void validateSortScope(String sortScope) throws InvalidLoadOptionException {
     if (sortScope != null) {
       // We support global sort for Hive standard partition, but don't support
       // global sort for other partition type.
       if (table.getPartitionInfo(table.getTableName()) != null &&
           !table.isHivePartitionTable() &&
           sortScope.equalsIgnoreCase(SortScopeOptions.SortScope.GLOBAL_SORT.toString())) {
         throw new InvalidLoadOptionException("Don't support use global sort on "
             + table.getPartitionInfo().getPartitionType() +  " partition table.");
       }
     }
   }

   private void validateGlobalSortPartitions(String globalSortPartitions)
       throws InvalidLoadOptionException {
     if (globalSortPartitions != null) {
       try {
         int num = Integer.parseInt(globalSortPartitions);
         if (num <= 0) {
           throw new InvalidLoadOptionException("'GLOBAL_SORT_PARTITIONS' should be greater than 0");
         }
       } catch (NumberFormatException e) {
         throw new InvalidLoadOptionException(e.getMessage());
       }
     }
   }

   private void validateAndSetColumnCompressor(CarbonLoadModel carbonLoadModel)
       throws InvalidLoadOptionException {
     try {
       String columnCompressor = carbonLoadModel.getColumnCompressor();
       if (StringUtils.isBlank(columnCompressor)) {
         columnCompressor = CarbonProperties.getInstance().getProperty(
             CarbonCommonConstants.COMPRESSOR, CarbonCommonConstants.DEFAULT_COMPRESSOR);
       }
       // check and load compressor
       CompressorFactory.getInstance().getCompressor(columnCompressor);
       carbonLoadModel.setColumnCompressor(columnCompressor);
     } catch (Exception e) {
       LOGGER.error(e);
       throw new InvalidLoadOptionException("Failed to load the compressor");
     }
   }

   /**
    * check whether using default value or not
    */
   private String checkDefaultValue(String value, String defaultValue) {
     if (StringUtils.isEmpty(value)) {
       return defaultValue;
     } else {
       return value;
     }
   }

   private void validateAndSetLoadMinSize(CarbonLoadModel carbonLoadModel) {
     int size = 0;
     String loadMinSize = carbonLoadModel.getLoadMinSize();
     try {
       size = Integer.parseInt(loadMinSize);
     } catch (Exception e) {
       size = 0;
     }
     // if the value is negative, set the value is 0
     if (size > 0) {
       carbonLoadModel.setLoadMinSize(loadMinSize);
     } else {
       carbonLoadModel.setLoadMinSize(CarbonCommonConstants.CARBON_LOAD_MIN_SIZE_INMB_DEFAULT);
     }
   }
 }
	/*
	* 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.processing.loading.model;

	import java.io.IOException;
	import java.text.SimpleDateFormat;
	import java.util.ArrayList;
	import java.util.HashMap;
	import java.util.List;
	import java.util.Map;

	import org.apache.carbondata.common.Maps;
	import org.apache.carbondata.common.Strings;
	import org.apache.carbondata.common.annotations.InterfaceAudience;
	import org.apache.carbondata.common.constants.LoggerAction;
	import org.apache.carbondata.common.exceptions.sql.InvalidLoadOptionException;
	import org.apache.carbondata.common.logging.LogServiceFactory;
	import org.apache.carbondata.core.constants.CarbonCommonConstants;
	import org.apache.carbondata.core.constants.SortScopeOptions;
	import org.apache.carbondata.core.datastore.compression.CompressorFactory;
	import org.apache.carbondata.core.metadata.schema.table.CarbonTable;
	import org.apache.carbondata.core.metadata.schema.table.column.CarbonColumn;
	import org.apache.carbondata.core.util.CarbonProperties;
	import org.apache.carbondata.core.util.CarbonUtil;
	import org.apache.carbondata.processing.loading.constants.DataLoadProcessorConstants;
	import org.apache.carbondata.processing.loading.csvinput.CSVInputFormat;
	import org.apache.carbondata.processing.util.CarbonBadRecordUtil;
	import org.apache.carbondata.processing.util.TableOptionConstant;

	import org.apache.commons.lang.StringUtils;
	import org.apache.hadoop.conf.Configuration;
	import org.apache.log4j.Logger;

	/**
	* Builder for {@link CarbonLoadModel}
	*/
	@InterfaceAudience.Internal
	public class CarbonLoadModelBuilder {
	private static final Logger LOGGER = LogServiceFactory.getLogService(
	CarbonLoadModelBuilder.class.getName());
	private CarbonTable table;

	public CarbonLoadModelBuilder(CarbonTable table) {
	this.table = table;
	}

	/**
	* build CarbonLoadModel for data loading
	* @param options Load options from user input
	* @param taskNo
	* @return a new CarbonLoadModel instance
	*/
	public CarbonLoadModel build(Map<String, String> options, long timestamp, String taskNo)
	throws InvalidLoadOptionException, IOException {
	Map<String, String> optionsFinal = LoadOption.fillOptionWithDefaultValue(options);

	if (!options.containsKey("fileheader")) {
	List<CarbonColumn> csvHeader = table.getCreateOrderColumn(table.getTableName());
	String[] columns = new String[csvHeader.size()];
	for (int i = 0; i < columns.length; i++) {
	columns[i] = csvHeader.get(i).getColName();
	}
	optionsFinal.put("fileheader", Strings.mkString(columns, ","));
	}
	optionsFinal.put("bad_record_path", CarbonBadRecordUtil.getBadRecordsPath(options, table));
	optionsFinal.put("sort_scope",
	Maps.getOrDefault(options, "sort_scope", CarbonCommonConstants.LOAD_SORT_SCOPE_DEFAULT));
	CarbonLoadModel model = new CarbonLoadModel();
	model.setCarbonTransactionalTable(table.isTransactionalTable());
	model.setFactTimeStamp(timestamp);
	model.setTaskNo(taskNo);

	// we have provided 'fileheader', so it hadoopConf can be null
	build(options, optionsFinal, model, null);
	String timestampFormat = options.get("timestampformat");
	if (timestampFormat == null) {
	timestampFormat = CarbonProperties.getInstance()
	.getProperty(CarbonCommonConstants.CARBON_TIMESTAMP_FORMAT,
	CarbonCommonConstants.CARBON_TIMESTAMP_DEFAULT_FORMAT);
	}
	String dateFormat = options.get("dateFormat");
	if (dateFormat == null) {
	dateFormat = CarbonProperties.getInstance()
	.getProperty(CarbonCommonConstants.CARBON_DATE_FORMAT,
	CarbonCommonConstants.CARBON_DATE_DEFAULT_FORMAT);
	}
	model.setDateFormat(dateFormat);
	model.setTimestampformat(timestampFormat);
	model.setUseOnePass(Boolean.parseBoolean(Maps.getOrDefault(options, "onepass", "false")));
	model.setDictionaryServerHost(Maps.getOrDefault(options, "dicthost", null));
	try {
	model.setDictionaryServerPort(Integer.parseInt(Maps.getOrDefault(options, "dictport", "-1")));
	} catch (NumberFormatException e) {
	throw new InvalidLoadOptionException(e.getMessage());
	}
	validateAndSetColumnCompressor(model);
	return model;
	}

	/**
	* build CarbonLoadModel for data loading
	* @param options Load options from user input
	* @param optionsFinal Load options that populated with default values for optional options
	* @param carbonLoadModel The output load model
	* @param hadoopConf hadoopConf is needed to read CSV header if there 'fileheader' is not set in
	* user provided load options
	*/
	public void build(
	Map<String, String> options,
	Map<String, String> optionsFinal,
	CarbonLoadModel carbonLoadModel,
	Configuration hadoopConf) throws InvalidLoadOptionException, IOException {
	build(options, optionsFinal, carbonLoadModel, hadoopConf, new HashMap<String, String>(), false);
	}

	/**
	* build CarbonLoadModel for data loading
	* @param options Load options from user input
	* @param optionsFinal Load options that populated with default values for optional options
	* @param carbonLoadModel The output load model
	* @param hadoopConf hadoopConf is needed to read CSV header if there 'fileheader' is not set in
	* user provided load options
	* @param partitions partition name map to path
	* @param isDataFrame true if build for load for dataframe
	*/
	public void build(
	Map<String, String> options,
	Map<String, String> optionsFinal,
	CarbonLoadModel carbonLoadModel,
	Configuration hadoopConf,
	Map<String, String> partitions,
	boolean isDataFrame) throws InvalidLoadOptionException, IOException {
	carbonLoadModel.setTableName(table.getTableName());
	carbonLoadModel.setDatabaseName(table.getDatabaseName());
	carbonLoadModel.setTablePath(table.getTablePath());
	carbonLoadModel.setTableName(table.getTableName());
	carbonLoadModel.setCarbonTransactionalTable(table.isTransactionalTable());
	CarbonDataLoadSchema dataLoadSchema = new CarbonDataLoadSchema(table);
	// Need to fill dimension relation
	carbonLoadModel.setCarbonDataLoadSchema(dataLoadSchema);
	String sort_scope = optionsFinal.get("sort_scope");
	String single_pass = optionsFinal.get("single_pass");
	String bad_records_logger_enable = optionsFinal.get("bad_records_logger_enable");
	String bad_records_action = optionsFinal.get("bad_records_action");
	String bad_record_path = optionsFinal.get("bad_record_path");
	String global_sort_partitions = optionsFinal.get("global_sort_partitions");
	String timestampformat = optionsFinal.get("timestampformat");
	String dateFormat = optionsFinal.get("dateformat");
	String delimeter = optionsFinal.get("delimiter");
	String complex_delimeter_level1 = optionsFinal.get("complex_delimiter_level_1");
	String complex_delimeter_level2 = optionsFinal.get("complex_delimiter_level_2");
	String complex_delimeter_level3 = optionsFinal.get("complex_delimiter_level_3");
	String complex_delimeter_level4 = optionsFinal.get("complex_delimiter_level_4");
	String all_dictionary_path = optionsFinal.get("all_dictionary_path");
	String column_dict = optionsFinal.get("columndict");
	validateDateTimeFormat(timestampformat, "TimestampFormat");
	validateDateTimeFormat(dateFormat, "DateFormat");
	validateSortScope(sort_scope);

	if (Boolean.parseBoolean(bad_records_logger_enable) \|\|
	LoggerAction.REDIRECT.name().equalsIgnoreCase(bad_records_action)) {
	if (!StringUtils.isEmpty(bad_record_path)) {
	bad_record_path = CarbonUtil.checkAndAppendHDFSUrl(bad_record_path);
	} else {
	throw new InvalidLoadOptionException(
	"Cannot redirect bad records as bad record location is not provided.");
	}
	}

	carbonLoadModel.setBadRecordsLocation(bad_record_path);

	validateGlobalSortPartitions(global_sort_partitions);
	carbonLoadModel.setEscapeChar(checkDefaultValue(optionsFinal.get("escapechar"), "\\"));
	carbonLoadModel.setQuoteChar(checkDefaultValue(optionsFinal.get("quotechar"), "\""));
	carbonLoadModel.setCommentChar(checkDefaultValue(optionsFinal.get("commentchar"), "#"));

	// if there isn't file header in csv file and load sql doesn't provide FILEHEADER option,
	// we should use table schema to generate file header.
	String fileHeader = optionsFinal.get("fileheader");
	String headerOption = options.get("header");
	if (headerOption != null) {
	if (!headerOption.equalsIgnoreCase("true") &&
	!headerOption.equalsIgnoreCase("false")) {
	throw new InvalidLoadOptionException(
	"'header' option should be either 'true' or 'false'.");
	}
	// whether the csv file has file header, the default value is true
	if (Boolean.valueOf(headerOption)) {
	if (!StringUtils.isEmpty(fileHeader)) {
	throw new InvalidLoadOptionException(
	"When 'header' option is true, 'fileheader' option is not required.");
	}
	} else {
	if (StringUtils.isEmpty(fileHeader)) {
	List<CarbonColumn> columns = table.getCreateOrderColumn(table.getTableName());
	List<String> columnNames = new ArrayList<>();
	List<String> partitionColumns = new ArrayList<>();
	for (int i = 0; i < columns.size(); i++) {
	if (table.getPartitionInfo() != null && table.getPartitionInfo().getColumnSchemaList()
	.contains(columns.get(i).getColumnSchema())) {
	partitionColumns.add(columns.get(i).getColName());
	} else {
	columnNames.add(columns.get(i).getColName());
	}
	}
	columnNames.addAll(partitionColumns);
	fileHeader = Strings.mkString(columnNames.toArray(new String[columnNames.size()]), ",");
	}
	}
	}

	carbonLoadModel.setTimestampformat(timestampformat);
	carbonLoadModel.setDateFormat(dateFormat);
	carbonLoadModel.setDefaultTimestampFormat(
	CarbonProperties.getInstance().getProperty(
	CarbonCommonConstants.CARBON_TIMESTAMP_FORMAT,
	CarbonCommonConstants.CARBON_TIMESTAMP_DEFAULT_FORMAT));

	carbonLoadModel.setDefaultDateFormat(
	CarbonProperties.getInstance().getProperty(
	CarbonCommonConstants.CARBON_DATE_FORMAT,
	CarbonCommonConstants.CARBON_DATE_DEFAULT_FORMAT));

	carbonLoadModel.setSerializationNullFormat(
	TableOptionConstant.SERIALIZATION_NULL_FORMAT.getName() + "," +
	optionsFinal.get("serialization_null_format"));

	carbonLoadModel.setBadRecordsLoggerEnable(
	TableOptionConstant.BAD_RECORDS_LOGGER_ENABLE.getName() + "," + bad_records_logger_enable);

	carbonLoadModel.setBadRecordsAction(
	TableOptionConstant.BAD_RECORDS_ACTION.getName() + "," + bad_records_action.toUpperCase());

	carbonLoadModel.setIsEmptyDataBadRecord(
	DataLoadProcessorConstants.IS_EMPTY_DATA_BAD_RECORD + "," +
	optionsFinal.get("is_empty_data_bad_record"));

	carbonLoadModel.setSkipEmptyLine(optionsFinal.get("skip_empty_line"));

	carbonLoadModel.setSortScope(sort_scope);
	carbonLoadModel.setBatchSortSizeInMb(optionsFinal.get("batch_sort_size_inmb"));
	carbonLoadModel.setGlobalSortPartitions(global_sort_partitions);
	carbonLoadModel.setUseOnePass(Boolean.parseBoolean(single_pass));

	if (delimeter.equalsIgnoreCase(complex_delimeter_level1) \|\|
	complex_delimeter_level1.equalsIgnoreCase(complex_delimeter_level2) \|\|
	delimeter.equalsIgnoreCase(complex_delimeter_level2) \|\|
	delimeter.equalsIgnoreCase(complex_delimeter_level3)) {
	throw new InvalidLoadOptionException("Field Delimiter and Complex types delimiter are same");
	} else {
	carbonLoadModel.setComplexDelimiter(complex_delimeter_level1);
	carbonLoadModel.setComplexDelimiter(complex_delimeter_level2);
	carbonLoadModel.setComplexDelimiter(complex_delimeter_level3);
	carbonLoadModel.setComplexDelimiter(complex_delimeter_level4);
	}
	// set local dictionary path, and dictionary file extension
	carbonLoadModel.setAllDictPath(all_dictionary_path);
	carbonLoadModel.setCsvDelimiter(CarbonUtil.unescapeChar(delimeter));
	carbonLoadModel.setCsvHeader(fileHeader);
	carbonLoadModel.setColDictFilePath(column_dict);

	List<String> ignoreColumns = new ArrayList<>();
	if (!isDataFrame) {
	for (Map.Entry<String, String> partition : partitions.entrySet()) {
	if (partition.getValue() != null) {
	ignoreColumns.add(partition.getKey());
	}
	}
	}

	carbonLoadModel.setCsvHeaderColumns(
	LoadOption.getCsvHeaderColumns(carbonLoadModel, hadoopConf, ignoreColumns));

	int validatedMaxColumns = validateMaxColumns(
	carbonLoadModel.getCsvHeaderColumns(),
	optionsFinal.get("maxcolumns"));

	carbonLoadModel.setMaxColumns(String.valueOf(validatedMaxColumns));
	if (carbonLoadModel.isCarbonTransactionalTable()) {
	carbonLoadModel.readAndSetLoadMetadataDetails();
	}
	carbonLoadModel.setSortColumnsBoundsStr(optionsFinal.get("sort_column_bounds"));
	carbonLoadModel.setLoadMinSize(
	optionsFinal.get(CarbonCommonConstants.CARBON_LOAD_MIN_SIZE_INMB));
	validateAndSetLoadMinSize(carbonLoadModel);

	validateAndSetColumnCompressor(carbonLoadModel);
	}

	private int validateMaxColumns(String[] csvHeaders, String maxColumns)
	throws InvalidLoadOptionException {
	/*
	User configures both csvheadercolumns, maxcolumns,
	if csvheadercolumns >= maxcolumns, give error
	if maxcolumns > threashold, give error
	User configures csvheadercolumns
	if csvheadercolumns >= maxcolumns(default) then maxcolumns = csvheadercolumns+1
	if csvheadercolumns >= threashold, give error
	User configures nothing
	if csvheadercolumns >= maxcolumns(default) then maxcolumns = csvheadercolumns+1
	if csvheadercolumns >= threashold, give error
	*/
	int columnCountInSchema = csvHeaders.length;
	int maxNumberOfColumnsForParsing = 0;
	Integer maxColumnsInt = getMaxColumnValue(maxColumns);
	if (maxColumnsInt != null) {
	if (columnCountInSchema >= maxColumnsInt) {
	throw new InvalidLoadOptionException(
	"csv headers should be less than the max columns " + maxColumnsInt);
	} else if (maxColumnsInt > CSVInputFormat.THRESHOLD_MAX_NUMBER_OF_COLUMNS_FOR_PARSING) {
	throw new InvalidLoadOptionException(
	"max columns cannot be greater than the threshold value: " +
	CSVInputFormat.THRESHOLD_MAX_NUMBER_OF_COLUMNS_FOR_PARSING);
	} else {
	maxNumberOfColumnsForParsing = maxColumnsInt;
	}
	} else if (columnCountInSchema >= CSVInputFormat.THRESHOLD_MAX_NUMBER_OF_COLUMNS_FOR_PARSING) {
	throw new InvalidLoadOptionException(
	"csv header columns should be less than max threashold: " +
	CSVInputFormat.THRESHOLD_MAX_NUMBER_OF_COLUMNS_FOR_PARSING);
	} else if (columnCountInSchema >= CSVInputFormat.DEFAULT_MAX_NUMBER_OF_COLUMNS_FOR_PARSING) {
	maxNumberOfColumnsForParsing = columnCountInSchema + 1;
	} else {
	maxNumberOfColumnsForParsing = CSVInputFormat.DEFAULT_MAX_NUMBER_OF_COLUMNS_FOR_PARSING;
	}
	return maxNumberOfColumnsForParsing;
	}

	private Integer getMaxColumnValue(String maxColumn) {
	return (maxColumn == null) ? null : Integer.parseInt(maxColumn);
	}

	/**
	* validates both timestamp and date for illegal values
	*/
	private void validateDateTimeFormat(String dateTimeLoadFormat, String dateTimeLoadOption)
	throws InvalidLoadOptionException {
	// allowing empty value to be configured for dateformat option.
	if (dateTimeLoadFormat != null && !dateTimeLoadFormat.trim().equalsIgnoreCase("")) {
	try {
	new SimpleDateFormat(dateTimeLoadFormat);
	} catch (IllegalArgumentException e) {
	throw new InvalidLoadOptionException(
	"Error: Wrong option: " + dateTimeLoadFormat + " is provided for option "
	+ dateTimeLoadOption);
	}
	}
	}

	private void validateSortScope(String sortScope) throws InvalidLoadOptionException {
	if (sortScope != null) {
	// We support global sort for Hive standard partition, but don't support
	// global sort for other partition type.
	if (table.getPartitionInfo(table.getTableName()) != null &&
	!table.isHivePartitionTable() &&
	sortScope.equalsIgnoreCase(SortScopeOptions.SortScope.GLOBAL_SORT.toString())) {
	throw new InvalidLoadOptionException("Don't support use global sort on "
	+ table.getPartitionInfo().getPartitionType() + " partition table.");
	}
	}
	}

	private void validateGlobalSortPartitions(String globalSortPartitions)
	throws InvalidLoadOptionException {
	if (globalSortPartitions != null) {
	try {
	int num = Integer.parseInt(globalSortPartitions);
	if (num <= 0) {
	throw new InvalidLoadOptionException("'GLOBAL_SORT_PARTITIONS' should be greater than 0");
	}
	} catch (NumberFormatException e) {
	throw new InvalidLoadOptionException(e.getMessage());
	}
	}
	}

	private void validateAndSetColumnCompressor(CarbonLoadModel carbonLoadModel)
	throws InvalidLoadOptionException {
	try {
	String columnCompressor = carbonLoadModel.getColumnCompressor();
	if (StringUtils.isBlank(columnCompressor)) {
	columnCompressor = CarbonProperties.getInstance().getProperty(
	CarbonCommonConstants.COMPRESSOR, CarbonCommonConstants.DEFAULT_COMPRESSOR);
	}
	// check and load compressor
	CompressorFactory.getInstance().getCompressor(columnCompressor);
	carbonLoadModel.setColumnCompressor(columnCompressor);
	} catch (Exception e) {
	LOGGER.error(e);
	throw new InvalidLoadOptionException("Failed to load the compressor");
	}
	}

	/**
	* check whether using default value or not
	*/
	private String checkDefaultValue(String value, String defaultValue) {
	if (StringUtils.isEmpty(value)) {
	return defaultValue;
	} else {
	return value;
	}
	}

	private void validateAndSetLoadMinSize(CarbonLoadModel carbonLoadModel) {
	int size = 0;
	String loadMinSize = carbonLoadModel.getLoadMinSize();
	try {
	size = Integer.parseInt(loadMinSize);
	} catch (Exception e) {
	size = 0;
	}
	// if the value is negative, set the value is 0
	if (size > 0) {
	carbonLoadModel.setLoadMinSize(loadMinSize);
	} else {
	carbonLoadModel.setLoadMinSize(CarbonCommonConstants.CARBON_LOAD_MIN_SIZE_INMB_DEFAULT);
	}
	}
	}