univocity-parsers 2.9.1 · com.univocity.parsers.csv.CsvFormatDetector

Modifier and Type	Field and Description
private char[]	allowedDelimiters
private final char	comment
private char[]	delimiterPreference
private final int	MAX_ROW_SAMPLES
private final char	normalizedNewLine
private final char	suggestedDelimiter
private final char	suggestedQuote
private final char	suggestedQuoteEscape
private final int	whitespaceRangeStart

Access	Constructor and Description
public	CsvFormatDetector(int the number of row samples to collect before analyzing the statistics maxRowSamples, CsvParserSettings the configuration provided by the user with potential defaults in case the detection is unable to discover the proper column delimiter or quote character. settings, int starting range of characters considered to be whitespace. whitespaceRangeStart) Builds a new `CsvFormatDetector`

Method Summary

Modifier and Type	Method and Description
protected abstract void	apply(char the discovered delimiter character delimiter, char the discovered quote character quote, char the discovered quote escape character. quoteEscape) Applies the discovered CSV format elements to the `CsvParser`
protected Map<Character, Integer>	calculateTotals(List<Map<Character, Integer>> symbolsPerRow)
public void	execute(char[] the input buffer characters, int the last character position loaded into the buffer. length) Implements com.univocity.parsers.common.input.InputAnalysisProcess.execute. A sequence of characters of the input buffer to be analyzed.
protected char	Returns: the character with the highest/lowest number associated. getChar(Map<Character, Integer> the map of characters and their numbers map, Map<Character, Integer> totals, char the default character to return in case the map is empty defaultChar, boolean a flag indicating whether to return the character associated with the lowest number in the map. If `false` then the character associated with the highest number found will be returned. min) Returns the character with the highest or lowest associated number.
protected void	increment(Map<Character, Integer> the map of characters and their numbers map, char the character whose number should be increment symbol) Increments the number associated with a character in a map by 1
protected void	increment(Map<Character, Integer> the map of characters and their numbers map, char the character whose number should be increment symbol, int the size of the increment incrementSize) Increments the number associated with a character in a map
protected boolean	isAllowedDelimiter(char ch)
protected boolean	isSymbol(char ch)
protected char	Returns: the character with the highest number associated. max(Map<Character, Integer> the map of characters and their numbers map, Map<Character, Integer> totals, char the default character to return in case the map is empty defaultChar) Returns the character with the highest associated number.
protected char	Returns: the character with the lowest number associated. min(Map<Character, Integer> the map of characters and their numbers map, Map<Character, Integer> totals, char the default character to return in case the map is empty defaultChar) Returns the character with the lowest associated number.
protected char	pickDelimiter(Map<Character, Integer> sums, Map<Character, Integer> totals)

Inherited from java.lang.Object:: clone equals finalize getClass hashCode notify notifyAll toString wait wait wait

allowedDelimiters	back to summary
private char[] allowedDelimiters

comment	back to summary
private final char comment

delimiterPreference	back to summary
private char[] delimiterPreference

MAX_ROW_SAMPLES	back to summary
private final int MAX_ROW_SAMPLES

normalizedNewLine	back to summary
private final char normalizedNewLine

suggestedDelimiter	back to summary
private final char suggestedDelimiter

suggestedQuote	back to summary
private final char suggestedQuote

suggestedQuoteEscape	back to summary
private final char suggestedQuoteEscape

whitespaceRangeStart	back to summary
private final int whitespaceRangeStart

CsvFormatDetector	back to summary
public CsvFormatDetector(int maxRowSamples, CsvParserSettings settings, int whitespaceRangeStart) Builds a new `CsvFormatDetector` Parameters maxRowSamples:int the number of row samples to collect before analyzing the statistics settings:CsvParserSettings the configuration provided by the user with potential defaults in case the detection is unable to discover the proper column delimiter or quote character. whitespaceRangeStart:int starting range of characters considered to be whitespace.

Method Detail

apply back to summary

apply	back to summary
protected abstract void apply(char delimiter, char quote, char quoteEscape) Applies the discovered CSV format elements to the `CsvParser` Parameters delimiter:char the discovered delimiter character quote:char the discovered quote character quoteEscape:char the discovered quote escape character.

protected abstract void apply(char delimiter, char quote, char quoteEscape)

Applies the discovered CSV format elements to the CsvParser

Parameters

delimiter:char: the discovered delimiter character
quote:char: the discovered quote character
quoteEscape:char: the discovered quote escape character.

calculateTotals	back to summary
protected Map<Character, Integer> calculateTotals(List<Map<Character, Integer>> symbolsPerRow)

execute	back to summary
public void execute(char[] characters, int length) Implements com.univocity.parsers.common.input.InputAnalysisProcess.execute. Doc from com.univocity.parsers.common.input.InputAnalysisProcess.execute. A sequence of characters of the input buffer to be analyzed. Parameters characters:char[] the input buffer length:int the last character position loaded into the buffer. Annotations @Override

execute

back to summary

public void execute(char[] characters, int length)

Implements com.univocity.parsers.common.input.InputAnalysisProcess.execute.

Doc from com.univocity.parsers.common.input.InputAnalysisProcess.execute.

A sequence of characters of the input buffer to be analyzed.

Parameters

characters:char[]: the input buffer
length:int: the last character position loaded into the buffer.

Annotations

@Override

getChar back to summary

getChar	back to summary
protected char getChar(Map<Character, Integer> map, Map<Character, Integer> totals, char defaultChar, boolean min) Returns the character with the highest or lowest associated number. Parameters map:Map<Character, Integer> the map of characters and their numbers defaultChar:char the default character to return in case the map is empty min:boolean a flag indicating whether to return the character associated with the lowest number in the map. If `false` then the character associated with the highest number found will be returned. Returns:char the character with the highest/lowest number associated.

protected char getChar(Map<Character, Integer> map, Map<Character, Integer> totals, char defaultChar, boolean min)

Returns the character with the highest or lowest associated number.

Parameters

map:Map<Character, Integer>: the map of characters and their numbers
defaultChar:char: the default character to return in case the map is empty
min:boolean: a flag indicating whether to return the character associated with the lowest number in the map. If false then the character associated with the highest number found will be returned.

Returns:char

the character with the highest/lowest number associated.

increment	back to summary
protected void increment(Map<Character, Integer> map, char symbol) Increments the number associated with a character in a map by 1 Parameters map:Map<Character, Integer> the map of characters and their numbers symbol:char the character whose number should be increment

increment

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protected void increment(Map<Character, Integer> map, char symbol)

Increments the number associated with a character in a map by 1

Parameters

map:Map<Character, Integer>: the map of characters and their numbers
symbol:char: the character whose number should be increment

increment	back to summary
protected void increment(Map<Character, Integer> map, char symbol, int incrementSize) Increments the number associated with a character in a map Parameters map:Map<Character, Integer> the map of characters and their numbers symbol:char the character whose number should be increment incrementSize:int the size of the increment

increment

back to summary

protected void increment(Map<Character, Integer> map, char symbol, int incrementSize)

Increments the number associated with a character in a map

Parameters

map:Map<Character, Integer>: the map of characters and their numbers
symbol:char: the character whose number should be increment
incrementSize:int: the size of the increment

isAllowedDelimiter	back to summary
protected boolean isAllowedDelimiter(char ch)

isSymbol	back to summary
protected boolean isSymbol(char ch)

max	back to summary
protected char max(Map<Character, Integer> map, Map<Character, Integer> totals, char defaultChar) Returns the character with the highest associated number. Parameters map:Map<Character, Integer> the map of characters and their numbers defaultChar:char the default character to return in case the map is empty Returns:char the character with the highest number associated.

max

back to summary

protected char max(Map<Character, Integer> map, Map<Character, Integer> totals, char defaultChar)

Returns the character with the highest associated number.

Parameters

map:Map<Character, Integer>: the map of characters and their numbers
defaultChar:char: the default character to return in case the map is empty

Returns:char

the character with the highest number associated.

min	back to summary
protected char min(Map<Character, Integer> map, Map<Character, Integer> totals, char defaultChar) Returns the character with the lowest associated number. Parameters map:Map<Character, Integer> the map of characters and their numbers defaultChar:char the default character to return in case the map is empty Returns:char the character with the lowest number associated.

min

back to summary

protected char min(Map<Character, Integer> map, Map<Character, Integer> totals, char defaultChar)

Returns the character with the lowest associated number.

Parameters

map:Map<Character, Integer>: the map of characters and their numbers
defaultChar:char: the default character to return in case the map is empty

Returns:char

the character with the lowest number associated.

pickDelimiter	back to summary
protected char pickDelimiter(Map<Character, Integer> sums, Map<Character, Integer> totals)

public abstract Class CsvFormatDetector

Field Summary

Constructor Summary

Method Summary

Field Detail

Constructor Detail

Method Detail