java.lang.Object
- org.neo4j.gds.utils.ExceptionUtil

public final class ExceptionUtil
extends java.lang.Object

Method Summary

All Methods Static Methods Concrete Methods
Modifier and Type	Method	Description
`static <T,R,E extends java.lang.Exception> R`	`apply(CheckedFunction<? super T,? extends R,E> function, T input)`
`static <T extends java.lang.Throwable> T`	`chain(T initial, T current)`	Adds the current exception to the initial exception as suppressed.
`static <T,R,E extends java.lang.Exception> java.util.function.Function<T,R>`	`function(CheckedFunction<T,R,E> function)`
`static java.lang.Throwable`	`rootCause(java.lang.Throwable caughtException)`	Returns the root cause of an exception.
`static <E extends java.lang.Exception> void`	`run(CheckedRunnable<E> runnable)`
`static <T,E extends java.lang.Exception> java.util.function.Supplier<? extends T>`	`supplier(CheckedSupplier<? extends T,E> supplier)`
`static <T,E extends java.lang.Exception> T`	`supply(CheckedSupplier<? extends T,E> supplier)`
`static void`	`throwIfUnchecked(java.lang.Throwable exception)`	Rethrows `exception` if it is an instance of `RuntimeException` or `Error`.
`static <E extends java.lang.Exception> java.lang.Runnable`	`unchecked(CheckedRunnable<E> runnable)`
`static void`	`validateSourceNodeIsLoaded(long mappedId, long neoId)`
`static void`	`validateTargetNodeIsLoaded(long mappedId, long neoId)`

Methods inherited from class java.lang.Object
clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

Method Detail

rootCause
```
public static java.lang.Throwable rootCause(java.lang.Throwable caughtException)
```
Returns the root cause of an exception. Copied from org.neo4j.helpers.Exceptions#rootCause(Throwable) due to deprecation.

Parameters:

caughtException - exception to find the root cause of.

Returns:

the root cause.

Throws:

java.lang.IllegalArgumentException - if the provided exception is null.

chain
```
public static <T extends java.lang.Throwable> T chain(T initial,
                                                      T current)
```
Adds the current exception to the initial exception as suppressed. Copied from org.neo4j.helpers.Exceptions#chain(Throwable, Throwable) due to deprecation.

throwIfUnchecked

public static void throwIfUnchecked(java.lang.Throwable exception)

Rethrows exception if it is an instance of RuntimeException or Error. Typical usage is:

 catch (Throwable e) {
   ......common code......
   throwIfUnchecked(e);
   throw new RuntimeException(e);
 }

This will only wrap checked exception in a RuntimeException. Do note that if the segment common code is missing, it's preferable to use this instead:

 catch (RuntimeException | Error e) {
   throw e;
 }
 catch (Throwable e) {
   throw new RuntimeException(e);
 }

Parameters:: exception - to rethrow.

unchecked

public static <E extends java.lang.Exception> java.lang.Runnable unchecked(CheckedRunnable<E> runnable)

run

public static <E extends java.lang.Exception> void run(CheckedRunnable<E> runnable)

function

public static <T,R,E extends java.lang.Exception> java.util.function.Function<T,R> function(CheckedFunction<T,R,E> function)

supplier

public static <T,E extends java.lang.Exception> java.util.function.Supplier<? extends T> supplier(CheckedSupplier<? extends T,E> supplier)

supply

public static <T,E extends java.lang.Exception> T supply(CheckedSupplier<? extends T,E> supplier)

apply

public static <T,R,E extends java.lang.Exception> R apply(CheckedFunction<? super T,? extends R,E> function,
                                                                      T input)

validateTargetNodeIsLoaded

public static void validateTargetNodeIsLoaded(long mappedId,
                                              long neoId)

validateSourceNodeIsLoaded

public static void validateSourceNodeIsLoaded(long mappedId,
                                              long neoId)

Class ExceptionUtil