de.unknownreality.dataframe.csv

Class CSVReaderBuilder

java.lang.Object

de.unknownreality.dataframe.csv.CSVReaderBuilder

All Implemented Interfaces:

ReaderBuilder<CSVRow,CSVReader>

public class CSVReaderBuilder
extends Object
implements ReaderBuilder<CSVRow,CSVReader>

Created by Alex on 17.06.2017.

Constructor Summary

Constructors

Constructor and Description
CSVReaderBuilder()

Method Summary

Modifier and Type	Method and Description
CSVReaderBuilder	addSkipPrefix(String prefix)
CSVReader	build()
CSVReaderBuilder	containsHeader(boolean header)
static CSVReaderBuilder	create()
CSVReaderBuilder	ignoreColumn(String col)
CSVReaderBuilder	ignoreColumns(String... cols)
CSVIterator	load(File file) Deprecated. use DataFrame.fromCSV(java.io.File, char, boolean) or DataFrame.load(java.io.File) instead.
CSVIterator	load(String content) Deprecated. use DataFrame.fromCSV(java.io.File, char, boolean) or DataFrame.load(java.io.File) instead.
CSVIterator	loadResource(String resourcePath) Deprecated. use DataFrame.fromCSV(java.io.File, char, boolean) or DataFrame.load(java.io.File) instead.
CSVIterator	loadResource(String resourcePath, ClassLoader classLoader) Deprecated. use DataFrame.fromCSV(java.io.File, char, boolean) or DataFrame.load(java.io.File) instead.
ReaderBuilder<CSVRow,CSVReader>	loadSettings(Map<String,String> attributes)
CSVReaderBuilder	selectColumn(String col)
CSVReaderBuilder	selectColumns(String... cols)
<T extends Comparable<T>> CSVReaderBuilder	setColumnType(String col, Class<T> type)
CSVReaderBuilder	withHeader(boolean header)
CSVReaderBuilder	withHeaderPrefix(String headerPrefix)
CSVReaderBuilder	withQuoteDetection(boolean quoteDetection) Detect quoted values e.g. val1 "val 2" val3
CSVReaderBuilder	withSeparator(char separator)
CSVReaderBuilder	withSingleQuoteDetection(boolean singleQuoteDetection) Detect single quoted values e.g. val1 'val 2' val3

Methods inherited from class java.lang.Object

clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

Constructor Detail

CSVReaderBuilder

public CSVReaderBuilder()

Method Detail

create

public static CSVReaderBuilder create()

withSeparator

public CSVReaderBuilder withSeparator(char separator)

withQuoteDetection

public CSVReaderBuilder withQuoteDetection(boolean quoteDetection)

Detect quoted values e.g. val1 "val 2" val3

Parameters:

quoteDetection - quoteDetection

Returns:

self for method chaining

withSingleQuoteDetection

public CSVReaderBuilder withSingleQuoteDetection(boolean singleQuoteDetection)

Detect single quoted values e.g. val1 'val 2' val3

Parameters:

singleQuoteDetection - singleQuoteDetection

Returns:

self for method chaining

addSkipPrefix

public CSVReaderBuilder addSkipPrefix(String prefix)

withHeaderPrefix

public CSVReaderBuilder withHeaderPrefix(String headerPrefix)

ignoreColumns

public CSVReaderBuilder ignoreColumns(String... cols)

ignoreColumn

public CSVReaderBuilder ignoreColumn(String col)

selectColumns

public CSVReaderBuilder selectColumns(String... cols)

selectColumn

public CSVReaderBuilder selectColumn(String col)

Specified by:

selectColumn in interface ReaderBuilder<CSVRow,CSVReader>

setColumnType

public <T extends Comparable<T>> CSVReaderBuilder setColumnType(String col,
                                                                Class<T> type)

withHeader

public CSVReaderBuilder withHeader(boolean header)

containsHeader

public CSVReaderBuilder containsHeader(boolean header)

load

@Deprecated
public CSVIterator load(File file)

Deprecated. use DataFrame.fromCSV(java.io.File, char, boolean) or DataFrame.load(java.io.File) instead.

Creates a CSVIterator for the specified file

Parameters:

file - source file

Returns:

csv reader for source file

load

@Deprecated
public CSVIterator load(String content)

Deprecated. use DataFrame.fromCSV(java.io.File, char, boolean) or DataFrame.load(java.io.File) instead.

Creates a CSVIterator for the specified csv content string

Parameters:

content - csv content string

Returns:

csv reader for content string

loadResource

@Deprecated
public CSVIterator loadResource(String resourcePath,
                                             ClassLoader classLoader)

Deprecated. use DataFrame.fromCSV(java.io.File, char, boolean) or DataFrame.load(java.io.File) instead.

Creates a CSVIterator for a specified resource. The provided ClassLoader is used to load the resource.

Parameters:

resourcePath - path to csv resource

classLoader - ClassLoader used to load the resource

Returns:

csv reader for resource

loadResource

@Deprecated
public CSVIterator loadResource(String resourcePath)

Deprecated. use DataFrame.fromCSV(java.io.File, char, boolean) or DataFrame.load(java.io.File) instead.

Creates a CSVIterator for a specified resource. The ClassLoader of CSVReaderBuilder is used to load the resource.

Parameters:

resourcePath - path to csv resource

Returns:

csv reader for resource

build

public CSVReader build()

Specified by:

build in interface ReaderBuilder<CSVRow,CSVReader>

loadSettings

public ReaderBuilder<CSVRow,CSVReader> loadSettings(Map<String,String> attributes)
                                             throws Exception

Specified by:

loadSettings in interface ReaderBuilder<CSVRow,CSVReader>

Throws:

Exception