org.omnifaces.el.functions

Class Converters

java.lang.Object

org.omnifaces.el.functions.Converters

public final class Converters
extends java.lang.Object

Collection of EL functions for data conversion.

Author:

Bauke Scholtz

Method Summary

Methods

Modifier and Type	Method and Description
static java.lang.String	formatBytes(java.lang.Long bytes) Format the given bytes to nearest 10n with IEC binary unit (KiB, MiB, etc) with rounding precision of 1 fraction.
static <K,V> java.util.List<java.util.Map.Entry<K,V>>	mapToList(java.util.Map<K,V> map) Converts a Map<K, V> to a List<Map.Entry<K, V>>.
static java.lang.String	printStackTrace(java.lang.Throwable exception) Print the stack trace of the given exception.
static <E> java.util.List<E>	setToList(java.util.Set<E> set) Converts a Set<E> to a List<E>.

Methods inherited from class java.lang.Object

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

Method Detail

formatBytes

public static java.lang.String formatBytes(java.lang.Long bytes)

Format the given bytes to nearest 10ⁿ with IEC binary unit (KiB, MiB, etc) with rounding precision of 1 fraction. For example:

• 1023 bytes will appear as 1023 B
• 1024 bytes will appear as 1.0 KiB
• 500000 bytes will appear as 488.3 KiB
• 1048576 bytes will appear as 1.0 MiB

The format locale will be set to the one as obtained by Faces.getLocale().

Parameters:

bytes - The bytes to be formatted.

Returns:

The formatted bytes.

setToList

public static <E> java.util.List<E> setToList(java.util.Set<E> set)

Converts a Set<E> to a List<E>. Useful when you want to iterate over a Set in for example <ui:repeat>.

Parameters:

set - The set to be converted to list of its entries.

Returns:

The converted list.

mapToList

public static <K,V> java.util.List<java.util.Map.Entry<K,V>> mapToList(java.util.Map<K,V> map)

Converts a Map<K, V> to a List<Map.Entry<K, V>>. Useful when you want to iterate over a Map in for example <ui:repeat>. Each of the entries has the usual getKey() and getValue() methods.

Parameters:

map - The map to be converted to list of its entries.

Returns:

The converted list.

printStackTrace

public static java.lang.String printStackTrace(java.lang.Throwable exception)

Print the stack trace of the given exception.

Parameters:

exception - The exception to print the stack trace for.

Returns:

The printed stack trace.