hu.akarnokd.rxjava2.functions

Class FunctionTagging

java.lang.Object

hu.akarnokd.rxjava2.functions.FunctionTagging

public final class FunctionTagging
extends Object

Wraps the regular io.reactivex.functions function types and appends the user-specified tag to the exception the wrapped function produces.

The tagging can be optionally enabled before assembling flows, thus the overhead can be limited to when diagnosing problems around failing functions.

Each functional type has its own {code tagX} postfix to avoid lambda ambiguity.

Since:

0.17.4

Nested Class Summary

Nested Classes

Modifier and Type	Class and Description
static class	FunctionTagging.FunctionTaggingException The stackless tagging exception appended to the chain of causes of the original exception thrown by the wrapped function.

Method Summary

Modifier and Type	Method and Description
static void	disable() Disable the function tagging wrappers in the tagX methods.
static void	enable() Enable the function tagging wrappers in the tagX methods.
static boolean	isEnabled() Returns true if the function tagging wrappers are enabled.
static <T1,T2,R> BiFunction<T1,T2,R>	tagBiFunction(BiFunction<T1,T2,R> func, String tag)
static <T,R> Function<T,R>	tagFunction(Function<T,R> func, String tag)
static <T1,T2,T3,R> Function3<T1,T2,T3,R>	tagFunction3(Function3<T1,T2,T3,R> func, String tag)
static <T1,T2,T3,T4,R> Function4<T1,T2,T3,T4,R>	tagFunction4(Function4<T1,T2,T3,T4,R> func, String tag)
static <T1,T2,T3,T4,T5,R> Function5<T1,T2,T3,T4,T5,R>	tagFunction5(Function5<T1,T2,T3,T4,T5,R> func, String tag)
static <T1,T2,T3,T4,T5,T6,R> Function6<T1,T2,T3,T4,T5,T6,R>	tagFunction6(Function6<T1,T2,T3,T4,T5,T6,R> func, String tag)
static <T1,T2,T3,T4,T5,T6,T7,R> Function7<T1,T2,T3,T4,T5,T6,T7,R>	tagFunction7(Function7<T1,T2,T3,T4,T5,T6,T7,R> func, String tag)
static <T1,T2,T3,T4,T5,T6,T7,T8,R> Function8<T1,T2,T3,T4,T5,T6,T7,T8,R>	tagFunction8(Function8<T1,T2,T3,T4,T5,T6,T7,T8,R> func, String tag)
static <T1,T2,T3,T4,T5,T6,T7,T8,T9,R> Function9<T1,T2,T3,T4,T5,T6,T7,T8,T9,R>	tagFunction9(Function9<T1,T2,T3,T4,T5,T6,T7,T8,T9,R> func, String tag)

Methods inherited from class java.lang.Object

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

Method Detail

enable

public static void enable()

Enable the function tagging wrappers in the tagX methods.

disable

public static void disable()

Disable the function tagging wrappers in the tagX methods.

Note that disabling doesn't remove the wrappers from previously tagged functions.

isEnabled

public static boolean isEnabled()

Returns true if the function tagging wrappers are enabled.

Returns:

true if the function tagging wrappers are enabled

tagFunction

public static <T,R> Function<T,R> tagFunction(Function<T,R> func,
                                              String tag)

tagBiFunction

public static <T1,T2,R> BiFunction<T1,T2,R> tagBiFunction(BiFunction<T1,T2,R> func,
                                                          String tag)

tagFunction3

public static <T1,T2,T3,R> Function3<T1,T2,T3,R> tagFunction3(Function3<T1,T2,T3,R> func,
                                                              String tag)

tagFunction4

public static <T1,T2,T3,T4,R> Function4<T1,T2,T3,T4,R> tagFunction4(Function4<T1,T2,T3,T4,R> func,
                                                                    String tag)

tagFunction5

public static <T1,T2,T3,T4,T5,R> Function5<T1,T2,T3,T4,T5,R> tagFunction5(Function5<T1,T2,T3,T4,T5,R> func,
                                                                          String tag)

tagFunction6

public static <T1,T2,T3,T4,T5,T6,R> Function6<T1,T2,T3,T4,T5,T6,R> tagFunction6(Function6<T1,T2,T3,T4,T5,T6,R> func,
                                                                                String tag)

tagFunction7

public static <T1,T2,T3,T4,T5,T6,T7,R> Function7<T1,T2,T3,T4,T5,T6,T7,R> tagFunction7(Function7<T1,T2,T3,T4,T5,T6,T7,R> func,
                                                                                      String tag)

tagFunction8

public static <T1,T2,T3,T4,T5,T6,T7,T8,R> Function8<T1,T2,T3,T4,T5,T6,T7,T8,R> tagFunction8(Function8<T1,T2,T3,T4,T5,T6,T7,T8,R> func,
                                                                                            String tag)

tagFunction9

public static <T1,T2,T3,T4,T5,T6,T7,T8,T9,R> Function9<T1,T2,T3,T4,T5,T6,T7,T8,T9,R> tagFunction9(Function9<T1,T2,T3,T4,T5,T6,T7,T8,T9,R> func,
                                                                                                  String tag)