cormoran.pepper.io

Class PepperSerializationHelper

java.lang.Object

cormoran.pepper.io.PepperSerializationHelper

public class PepperSerializationHelper
extends Object

Various utility method related to Serialization, as conversion from/to String to/from Collections and Map

Author:

Benoit Lacelle

Field Summary

Fields

Modifier and Type	Field and Description
static char	COLLECTION_SEPARATOR
static char	FORCE_SEPARATOR
protected static org.slf4j.Logger	LOGGER
static char	MAP_ENTRY_SEPARATOR
static char	MAP_ENTRY_SEPARATOR_SEMICOLUMN
static char	MAP_KEY_VALUE_SEPARATOR
static com.google.common.base.Splitter.MapSplitter	MAP_TO_STRING_SPLITTER
static com.google.common.base.Splitter.MapSplitter	MAP_TO_STRING_SPLITTER_SEMICOLUMN
static int	MAX_CHARS_PER_COLUMN
protected static com.google.common.base.Function<Object,CharSequence>	OBJECT_TO_STRING Deprecated.
static char	PIPE

Constructor Summary

Constructors

Modifier	Constructor and Description
protected	PepperSerializationHelper()

Method Summary

Modifier and Type	Method and Description
static void	appendLineInCSVFile(FileOutputStream outputFileIS, Iterable<?> row)
static void	appendLineInCSVFile(Path file, Iterable<?> row) Easy way to append a single CSV row in a file
static void	appendLineInCSVFile(Writer writer, Iterable<?> row)
static String	convertObjectToString(Object object)
static Object	convertStringToObject(CharSequence charSequence)
static List<Object>	convertToList(CharSequence asString)
static List<Object>	convertToList(CharSequence asString, char separator)
static List<String>	convertToListString(CharSequence asString)
static List<String>	convertToListString(CharSequence asString, char separator)
static Map<String,Object>	convertToMap(CharSequence asString)
static Map<String,List<String>>	convertToMapStringListString(String asString)
static Map<String,String>	convertToMapStringString(CharSequence asString)
static Set<?>	convertToSet(CharSequence asString)
static Set<? extends String>	convertToSetString(CharSequence asString)
static String	convertToString(Iterable<?> asList)
static String	convertToString(Map<?,?> asMap)
static String	convertToString2(Iterable<?> asList)
static <T extends Serializable> T	fromBytes(byte[] data)
static <T extends Serializable> T	fromBytes(ByteBuffer data)
static <T extends Serializable> T	fromString(String s) Read the object from Base64 string.
static String	generateSha512()
static List<String>	parseList(String asString)
static void	rawAppendLineInCSVFile(Writer writer, Iterable<?> row, boolean wrapInQuotes, int maxLength)
static <T> Optional<T>	safeToObject(Class<? extends T> clazz, String asString)
static byte[]	toBytes(Serializable o)
static Object	toDoubleLowDigits(Object value)
static String	toMD5(String input)
static String	toMD5(String input, Charset charset, MessageDigest md)
static String	toSha512(String input, String salt)
static String	toSha512(String input, String salt, Charset charset, MessageDigest md)
static String	toString(InputStream inputStream, Charset charset)
static String	toString(Serializable o) Write the object to a Base64 string.

Methods inherited from class java.lang.Object

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

Field Detail

LOGGER

protected static final org.slf4j.Logger LOGGER

MAX_CHARS_PER_COLUMN

public static final int MAX_CHARS_PER_COLUMN

See Also:

Constant Field Values

MAP_KEY_VALUE_SEPARATOR

public static final char MAP_KEY_VALUE_SEPARATOR

See Also:

Constant Field Values

MAP_ENTRY_SEPARATOR

public static final char MAP_ENTRY_SEPARATOR

See Also:

Constant Field Values

MAP_ENTRY_SEPARATOR_SEMICOLUMN

public static final char MAP_ENTRY_SEPARATOR_SEMICOLUMN

See Also:

Constant Field Values

MAP_TO_STRING_SPLITTER

public static final com.google.common.base.Splitter.MapSplitter MAP_TO_STRING_SPLITTER

MAP_TO_STRING_SPLITTER_SEMICOLUMN

public static final com.google.common.base.Splitter.MapSplitter MAP_TO_STRING_SPLITTER_SEMICOLUMN

PIPE

public static final char PIPE

See Also:

Constant Field Values

COLLECTION_SEPARATOR

public static final char COLLECTION_SEPARATOR

See Also:

Constant Field Values

FORCE_SEPARATOR

public static final char FORCE_SEPARATOR

See Also:

Constant Field Values

OBJECT_TO_STRING

@Deprecated
protected static final com.google.common.base.Function<Object,CharSequence> OBJECT_TO_STRING

Deprecated.

Constructor Detail

PepperSerializationHelper

protected PepperSerializationHelper()

Method Detail

convertToMap

public static Map<String,Object> convertToMap(CharSequence asString)

Parameters:

asString - a String with the form key1=value1,key2=value2

Returns:

a Map

convertToMapStringString

public static Map<String,String> convertToMapStringString(CharSequence asString)

convertToMapStringListString

public static Map<String,List<String>> convertToMapStringListString(String asString)

convertToSet

public static Set<?> convertToSet(CharSequence asString)

convertToSetString

public static Set<? extends String> convertToSetString(CharSequence asString)

convertToList

public static List<Object> convertToList(CharSequence asString)

convertToListString

public static List<String> convertToListString(CharSequence asString)

convertToList

public static List<Object> convertToList(CharSequence asString,
                                         char separator)

convertToListString

public static List<String> convertToListString(CharSequence asString,
                                               char separator)

convertToString

public static String convertToString(Map<?,?> asMap)

convertToString

public static String convertToString(Iterable<?> asList)

convertToString2

public static String convertToString2(Iterable<?> asList)

convertObjectToString

public static String convertObjectToString(Object object)

convertStringToObject

public static Object convertStringToObject(CharSequence charSequence)

Parameters:

charSequence -

Returns:

an Object is transcoding succeeded, else the original String

safeToObject

@Beta
public static <T> Optional<T> safeToObject(Class<? extends T> clazz,
                                                 String asString)

Parameters:

clazz - this the Class of the object instantiated by this method

asString - some string describing the object to instantiate

Returns:

an object of given class build over the input String

toDoubleLowDigits

@Beta
public static Object toDoubleLowDigits(Object value)

appendLineInCSVFile

@Beta
public static void appendLineInCSVFile(Path file,
                                             Iterable<?> row)
                                      throws IOException

Easy way to append a single CSV row in a file

Parameters:

file -

row -

Throws:

IOException

appendLineInCSVFile

@Beta
public static void appendLineInCSVFile(Writer writer,
                                             Iterable<?> row)
                                      throws IOException

Throws:

IOException

rawAppendLineInCSVFile

@Beta
public static void rawAppendLineInCSVFile(Writer writer,
                                                Iterable<?> row,
                                                boolean wrapInQuotes,
                                                int maxLength)
                                         throws IOException

Throws:

IOException

appendLineInCSVFile

@Beta
public static void appendLineInCSVFile(FileOutputStream outputFileIS,
                                             Iterable<?> row)
                                      throws IOException

Throws:

IOException

parseList

public static List<String> parseList(String asString)

fromString

public static <T extends Serializable> T fromString(String s)
                                             throws IOException,
                                                    ClassNotFoundException

Read the object from Base64 string.

Throws:

IOException

ClassNotFoundException

fromBytes

public static <T extends Serializable> T fromBytes(byte[] data)
                                            throws IOException,
                                                   ClassNotFoundException

Throws:

IOException

ClassNotFoundException

fromBytes

public static <T extends Serializable> T fromBytes(ByteBuffer data)
                                            throws IOException,
                                                   ClassNotFoundException

Throws:

IOException

ClassNotFoundException

toString

public static String toString(InputStream inputStream,
                              Charset charset)
                       throws IOException

Parameters:

inputStream - the inputStream which which bytes have to be read. It will NOT be closed

charset -

Returns:

the String associated to given bytes

Throws:

IOException

toString

public static String toString(Serializable o)
                       throws IOException

Write the object to a Base64 string.

Throws:

IOException

toBytes

public static byte[] toBytes(Serializable o)
                      throws IOException

Throws:

IOException

toMD5

public static String toMD5(String input)

toMD5

public static String toMD5(String input,
                           Charset charset,
                           MessageDigest md)

toSha512

public static String toSha512(String input,
                              String salt)

toSha512

public static String toSha512(String input,
                              String salt,
                              Charset charset,
                              MessageDigest md)

generateSha512

public static String generateSha512()