fr.ifremer.coser.storage

Class MemoryDataStorage

java.lang.Object

fr.ifremer.coser.storage.MemoryDataStorage

All Implemented Interfaces:

DataStorage, Serializable, Iterable<String[]>

public class MemoryDataStorage
extends Object
implements DataStorage

Stockage mémoire des String[] sous forme de String simple. Beaucoup moins couteux en mémoire que les String[] sans pour antant que le temps de parcours soit augmenté. Les String[] sont encodés en CSV et stocké en mémoire en String. Le code CSV a été repris de opencsv, mais sans les ioexception, reader et writer inutiles ici.

Author:

chatellier

See Also:

Serialized Form

Nested Class Summary

Nested Classes

Modifier and Type	Class and Description
class	MemoryDataStorage.StringListIterator Iterator sur les donnnées.

Field Summary

Fields

Modifier and Type	Field and Description
protected static char	escapechar
protected List<String>	lineIndexStorage Stockage des numero de ligne (String) pour une recherche indexOf plus rapide.
protected Map<String,Integer>	lineIndexStorageCache Cache pour les indexOf encore plus rapide (invalidé lors d'un delete).
protected List<String>	listStorage Stockage des données.
protected static char	quotechar
protected static char	separator

Constructor Summary

Constructors

Constructor and Description
MemoryDataStorage()

Method Summary

Methods

Modifier and Type	Method and Description
void	add(int index, String[] data) Add new data into storage.
void	add(String[] data) Add new data into storage.
protected String	arrayToString(String[] nextLine)
String[]	get(int index) Get data at specified index.
int	indexOf(String lineNumber) Real storage index of lineNumber.
protected boolean	isNextCharacterEscapable(String nextLine, boolean inQuotes, int i)
protected boolean	isNextCharacterEscapedQuote(String nextLine, boolean inQuotes, int i)
Iterator<String[]>	iterator()
Iterator<String[]>	iterator(boolean skipFirstLine) Return a new iterator, but skip first iterator element (csv header) by calling next() once.
protected String[]	parseLine(String nextLine)
protected StringBuilder	processLine(String nextElement)
String[]	remove(int index) Remove value at index.
String[]	set(int index, String[] element) Replace data at specified index.
int	size() Storage size.
protected String[]	stringToArray(String data)
String	toString()
protected String	writeNext(String[] nextLine)

Methods inherited from class java.lang.Object

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

Field Detail

listStorage

protected List<String> listStorage

Stockage des données.

lineIndexStorage

protected List<String> lineIndexStorage

Stockage des numero de ligne (String) pour une recherche indexOf plus rapide.

lineIndexStorageCache

protected Map<String,Integer> lineIndexStorageCache

Cache pour les indexOf encore plus rapide (invalidé lors d'un delete).

separator

protected static final char separator

See Also:

Constant Field Values

quotechar

protected static final char quotechar

See Also:

Constant Field Values

escapechar

protected static final char escapechar

See Also:

Constant Field Values

Constructor Detail

MemoryDataStorage

public MemoryDataStorage()

Method Detail

iterator

public Iterator<String[]> iterator()

Specified by:

iterator in interface Iterable<String[]>

iterator

public Iterator<String[]> iterator(boolean skipFirstLine)

Return a new iterator, but skip first iterator element (csv header) by calling next() once.

Specified by:

iterator in interface DataStorage

Parameters:

skipFirstLine - if true, skip first line

Returns:

an Iterator.

add

public void add(String[] data)

Description copied from interface: DataStorage

Add new data into storage.

Specified by:

add in interface DataStorage

Parameters:

data - data to add

add

public void add(int index,
       String[] data)

Description copied from interface: DataStorage

Add new data into storage.

Specified by:

add in interface DataStorage

Parameters:

index - index to insert data

data - data to add

get

public String[] get(int index)

Description copied from interface: DataStorage

Get data at specified index.

Specified by:

get in interface DataStorage

Parameters:

index - index

Returns:

data at index

indexOf

public int indexOf(String lineNumber)

Description copied from interface: DataStorage

Real storage index of lineNumber.

Specified by:

indexOf in interface DataStorage

Parameters:

lineNumber - line number

Returns:

storage index

size

public int size()

Description copied from interface: DataStorage

Storage size.

Specified by:

size in interface DataStorage

Returns:

storage size

set

public String[] set(int index,
           String[] element)

Description copied from interface: DataStorage

Replace data at specified index.

Specified by:

set in interface DataStorage

Parameters:

index - index

element - data to set

Returns:

previous value

remove

public String[] remove(int index)

Description copied from interface: DataStorage

Remove value at index.

Specified by:

remove in interface DataStorage

Parameters:

index - index

Returns:

removed value

toString

public String toString()

Overrides:

toString in class Object

arrayToString

protected String arrayToString(String[] nextLine)

stringToArray

protected String[] stringToArray(String data)

writeNext

protected String writeNext(String[] nextLine)

processLine

protected StringBuilder processLine(String nextElement)

parseLine

protected String[] parseLine(String nextLine)

isNextCharacterEscapedQuote

protected boolean isNextCharacterEscapedQuote(String nextLine,
                                  boolean inQuotes,
                                  int i)

isNextCharacterEscapable

protected boolean isNextCharacterEscapable(String nextLine,
                               boolean inQuotes,
                               int i)