Package com.illumon.iris.utils

Class ArrayParser

java.lang.Object

com.illumon.iris.utils.ArrayParser

public class ArrayParser
extends Object

A simple wrapper for string-to-array parsing. Parsers are kept in a cache per-delimiter so that we avoid recompiling the pattern regex.

Method Summary

Modifier and Type	Method	Description
String	encodeArray(double[] array)	Convert the given array to a String.
String	encodeArray(long[] array)	Convert the given array to a String.
<T> T	getArray(String value, boolean strict, Function<Stream<String>,T> elementSupplier)	Create a properly typed array from the input string based upon the delimiter, given a supplier.
double[]	getDoubleArray(String value, boolean strict)	Parse the given string as an array of doubles, based upon the delimiter.
static ArrayParser	getInstance(String delimiter)
long[]	getLongArray(String value, boolean strict)	Parse the given string as an array of longs, based upon the delimiter.
String[]	toStringArray(String value, boolean strict)	Split the input string into an array of strings based on the delimiter.

Methods inherited from class java.lang.Object

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

Method Details

getInstance

public static ArrayParser getInstance(String delimiter)

getDoubleArray

public double[] getDoubleArray(String value,
 boolean strict)

Parse the given string as an array of doubles, based upon the delimiter.

Parameters:

value - string to parse

strict - enforce format strictly

Returns:

array of parsed values

getLongArray

public long[] getLongArray(String value,
 boolean strict)

Parse the given string as an array of longs, based upon the delimiter.

Parameters:

value - string the to parse

strict - enforce format strictly

Returns:

array of parsed values

getArray

public <T> T getArray(String value,
 boolean strict,
 Function<Stream<String>,T> elementSupplier)

Create a properly typed array from the input string based upon the delimiter, given a supplier.

Type Parameters:

T - the type

Parameters:

value - The array string value

strict - if strict processing should be used

elementSupplier - a supplier to convert a stream of element strings to items of the correct types

Returns:

an array of values of the specified type

toStringArray

public String[] toStringArray(String value,
 boolean strict)

Split the input string into an array of strings based on the delimiter.

Parameters:

value - the array as a string

strict - if strict processing should be used

Returns:

an array of strings

encodeArray

public String encodeArray(double[] array)

Convert the given array to a String.

Parameters:

array - the array

Returns:

array encoded as string

encodeArray

public String encodeArray(long[] array)

Convert the given array to a String.

Parameters:

array - the array

Returns:

array encoded as string