Java CSVReaderNullFieldIndicator类代码示例

import com.opencsv.enums.CSVReaderNullFieldIndicator; //导入依赖的package包/类
public SpoolDirCsvSourceConnectorConfig(final boolean isTask, Map<String, ?> settings) {
  super(isTask, conf(), settings);
  this.skipLines = this.getInt(SpoolDirCsvSourceConnectorConfig.CSV_SKIP_LINES_CONF);
  this.separatorChar = this.getChar(SpoolDirCsvSourceConnectorConfig.CSV_SEPARATOR_CHAR_CONF);
  this.quoteChar = this.getChar(SpoolDirCsvSourceConnectorConfig.CSV_QUOTE_CHAR_CONF);
  this.escapeChar = this.getChar(SpoolDirCsvSourceConnectorConfig.CSV_ESCAPE_CHAR_CONF);
  this.ignoreLeadingWhitespace = this.getBoolean(SpoolDirCsvSourceConnectorConfig.CSV_IGNORE_LEADING_WHITESPACE_CONF);
  this.ignoreQuotations = this.getBoolean(SpoolDirCsvSourceConnectorConfig.CSV_IGNORE_QUOTATIONS_CONF);
  this.strictQuotes = this.getBoolean(SpoolDirCsvSourceConnectorConfig.CSV_STRICT_QUOTES_CONF);
  this.keepCarriageReturn = this.getBoolean(SpoolDirCsvSourceConnectorConfig.CSV_KEEP_CARRIAGE_RETURN_CONF);
  this.verifyReader = this.getBoolean(SpoolDirCsvSourceConnectorConfig.CSV_VERIFY_READER_CONF);
  this.nullFieldIndicator = ConfigUtils.getEnum(CSVReaderNullFieldIndicator.class, this, SpoolDirCsvSourceConnectorConfig.CSV_NULL_FIELD_INDICATOR_CONF);
  this.firstRowAsHeader = this.getBoolean(SpoolDirCsvSourceConnectorConfig.CSV_FIRST_ROW_AS_HEADER_CONF);

  String charsetName = this.getString(SpoolDirCsvSourceConnectorConfig.CSV_CHARSET_CONF);
  this.charset = Charset.forName(charsetName);

  this.caseSensitiveFieldNames = this.getBoolean(SpoolDirCsvSourceConnectorConfig.CSV_CASE_SENSITIVE_FIELD_NAMES_CONF);
}
 

import com.opencsv.enums.CSVReaderNullFieldIndicator; //导入依赖的package包/类
static final ConfigDef conf() {
  int csvPosition = 0;

  return SpoolDirSourceConnectorConfig.config()
      .define(CSV_SKIP_LINES_CONF, ConfigDef.Type.INT, CSV_SKIP_LINES_DEFAULT, ConfigDef.Importance.LOW, CSV_SKIP_LINES_DOC, CSV_GROUP, csvPosition++, ConfigDef.Width.LONG, CSV_DISPLAY_NAME)
      .define(CSV_SEPARATOR_CHAR_CONF, ConfigDef.Type.INT, CSV_SEPARATOR_CHAR_DEFAULT, ConfigDef.Importance.LOW, CSV_SEPARATOR_CHAR_DOC, CSV_GROUP, csvPosition++, ConfigDef.Width.LONG, CSV_DISPLAY_NAME)
      .define(CSV_QUOTE_CHAR_CONF, ConfigDef.Type.INT, CSV_QUOTE_CHAR_DEFAULT, ConfigDef.Importance.LOW, CSV_QUOTE_CHAR_DOC, CSV_GROUP, csvPosition++, ConfigDef.Width.LONG, CSV_DISPLAY_NAME)
      .define(CSV_ESCAPE_CHAR_CONF, ConfigDef.Type.INT, CSV_ESCAPE_CHAR_DEFAULT, ConfigDef.Importance.LOW, CSV_ESCAPE_CHAR_DOC, CSV_GROUP, csvPosition++, ConfigDef.Width.LONG, CSV_DISPLAY_NAME)
      .define(CSV_STRICT_QUOTES_CONF, ConfigDef.Type.BOOLEAN, CSV_STRICT_QUOTES_DEFAULT, ConfigDef.Importance.LOW, CSV_STRICT_QUOTES_DOC, CSV_GROUP, csvPosition++, ConfigDef.Width.LONG, CSV_DISPLAY_NAME)
      .define(CSV_IGNORE_LEADING_WHITESPACE_CONF, ConfigDef.Type.BOOLEAN, CSV_IGNORE_LEADING_WHITESPACE_DEFAULT, ConfigDef.Importance.LOW, CSV_IGNORE_LEADING_WHITESPACE_DOC, CSV_GROUP, csvPosition++, ConfigDef.Width.LONG, CSV_DISPLAY_NAME)
      .define(CSV_IGNORE_QUOTATIONS_CONF, ConfigDef.Type.BOOLEAN, CSV_IGNORE_QUOTATIONS_DEFAULT, ConfigDef.Importance.LOW, CSV_IGNORE_QUOTATIONS_DOC, CSV_GROUP, csvPosition++, ConfigDef.Width.LONG, CSV_DISPLAY_NAME)
      .define(CSV_KEEP_CARRIAGE_RETURN_CONF, ConfigDef.Type.BOOLEAN, CSV_KEEP_CARRIAGE_RETURN_DEFAULT, ConfigDef.Importance.LOW, CSV_KEEP_CARRIAGE_RETURN_DOC, CSV_GROUP, csvPosition++, ConfigDef.Width.LONG, CSV_DISPLAY_NAME)
      .define(CSV_VERIFY_READER_CONF, ConfigDef.Type.BOOLEAN, CSV_VERIFY_READER_DEFAULT, ConfigDef.Importance.LOW, CSV_VERIFY_READER_DOC, CSV_GROUP, csvPosition++, ConfigDef.Width.LONG, CSV_DISPLAY_NAME)
      .define(CSV_NULL_FIELD_INDICATOR_CONF, ConfigDef.Type.STRING, CSV_NULL_FIELD_INDICATOR_DEFAULT, ValidEnum.of(CSVReaderNullFieldIndicator.class), ConfigDef.Importance.LOW, CSV_NULL_FIELD_INDICATOR_DOC, CSV_GROUP, csvPosition++, ConfigDef.Width.LONG, CSV_DISPLAY_NAME)
      .define(CSV_FIRST_ROW_AS_HEADER_CONF, ConfigDef.Type.BOOLEAN, CSV_FIRST_ROW_AS_HEADER_DEFAULT, ConfigDef.Importance.MEDIUM, CSV_FIRST_ROW_AS_HEADER_DOC, CSV_GROUP, csvPosition++, ConfigDef.Width.LONG, CSV_DISPLAY_NAME)
      .define(CSV_CHARSET_CONF, ConfigDef.Type.STRING, CSV_CHARSET_DEFAULT, CharsetValidator.of(), ConfigDef.Importance.LOW, CSV_CHARSET_DOC, CSV_GROUP, csvPosition++, ConfigDef.Width.LONG, CSV_DISPLAY_NAME)
      .define(CSV_CASE_SENSITIVE_FIELD_NAMES_CONF, ConfigDef.Type.BOOLEAN, false, ConfigDef.Importance.LOW, CSV_CASE_SENSITIVE_FIELD_NAMES_DOC);
}
 

import com.opencsv.enums.CSVReaderNullFieldIndicator; //导入依赖的package包/类
/**
 * Constructs CSVParser with supplied separator and quote char.
 * Allows setting the "strict quotes" and "ignore leading whitespace" flags
 *
 * @param separator               the delimiter to use for separating entries
 * @param quotechar               the character to use for quoted elements
 * @param escape                  the character to use for escaping a separator or quote
 * @param strictQuotes            if true, characters outside the quotes are ignored
 * @param ignoreLeadingWhiteSpace if true, white space in front of a quote in a field is ignored
 * @param ignoreQuotations        if true, treat quotations like any other character.
 * @param nullFieldIndicator      which field content will be returned as null: EMPTY_SEPARATORS, EMPTY_QUOTES,
 *                                BOTH, NEITHER (default)
 */
CSVParser(char separator, char quotechar, char escape, boolean strictQuotes, boolean ignoreLeadingWhiteSpace, boolean ignoreQuotations, CSVReaderNullFieldIndicator nullFieldIndicator) {
    if (anyCharactersAreTheSame(separator, quotechar, escape)) {
        throw new UnsupportedOperationException("The separator, quote, and escape characters must be different!");
    }
    if (separator == NULL_CHARACTER) {
        throw new UnsupportedOperationException("The separator character must be defined!");
    }
    this.separator = separator;
    this.quotechar = quotechar;
    this.escape = escape;
    this.strictQuotes = strictQuotes;
    this.ignoreLeadingWhiteSpace = ignoreLeadingWhiteSpace;
    this.ignoreQuotations = ignoreQuotations;
    this.nullFieldIndicator = nullFieldIndicator;
}
 

import com.opencsv.enums.CSVReaderNullFieldIndicator; //导入依赖的package包/类
/**
 * @return - the null field indicator.
 */
public CSVReaderNullFieldIndicator nullFieldIndicator() {
    return nullFieldIndicator;
}
 

import com.opencsv.enums.CSVReaderNullFieldIndicator; //导入依赖的package包/类
/**
 * Sets the NullFieldIndicator.
 *
 * @param fieldIndicator - CSVReaderNullFieldIndicator set to what should be considered a null field.
 * @return - The CSVParserBuilder
 */
public CSVParserBuilder withFieldAsNull(final CSVReaderNullFieldIndicator fieldIndicator) {
    this.nullFieldIndicator = fieldIndicator;
    return this;
}
 

import com.opencsv.enums.CSVReaderNullFieldIndicator; //导入依赖的package包/类
/**
 * Checks to see if it should treat an field with two separators, two quotes, or both as a null field.
 *
 * @param indicator - CSVReaderNullFieldIndicator set to what should be considered a null field.
 * @return The CSVReaderBuilder based on this criteria.
 */
public CSVReaderBuilder withFieldAsNull(CSVReaderNullFieldIndicator indicator) {
    this.nullFieldIndicator = indicator;
    return this;
}