Package org.openhab.core.transform.actions

Class Transformation

java.lang.Object

org.openhab.core.transform.actions.Transformation

@NonNullByDefault
public class Transformation
extends Object

This class holds static "action" methods that can be used from within rules to execute transformations.

Author:

Kai Kreuzer - Initial contribution

Constructor Summary

Constructors

Constructor	Description
Transformation()

Method Summary

Modifier and Type	Method	Description
static @Nullable String	transform(String type, String function, String value)	Applies a transformation of a given type with some function to a value.
static @Nullable String	transformRaw(String type, String function, String value)	Applies a transformation of a given type with some function to a value.

Methods inherited from class java.lang.Object

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

Constructor Details

Transformation

public Transformation()

Method Details

transform

public static @Nullable String transform(String type,
 String function,
 String value)

Applies a transformation of a given type with some function to a value.

Parameters:

type - the transformation type, e.g. REGEX or MAP

function - the function to call, this value depends on the transformation type

value - the value to apply the transformation to

Returns:

the transformed value or the original one, if there was no service registered for the given type or a transformation exception occurred.

transformRaw

public static @Nullable String transformRaw(String type,
 String function,
 String value)
                                     throws TransformationException

Applies a transformation of a given type with some function to a value.

Parameters:

type - the transformation type, e.g. REGEX or MAP

function - the function to call, this value depends on the transformation type

value - the value to apply the transformation to

Returns:

the transformed value

Throws:

TransformationException